ffmpeg / libavcodec / h264.c @ 766324fc
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/*
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* H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder
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* Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file h264.c
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* H.264 / AVC / MPEG4 part10 codec.
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* @author Michael Niedermayer <michaelni@gmx.at>
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*/
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#include "dsputil.h" |
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#include "avcodec.h" |
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#include "mpegvideo.h" |
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#include "h264.h" |
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#include "h264data.h" |
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#include "h264_parser.h" |
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#include "golomb.h" |
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#include "rectangle.h" |
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#include "cabac.h" |
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//#undef NDEBUG
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#include <assert.h> |
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/**
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* Value of Picture.reference when Picture is not a reference picture, but
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* is held for delayed output.
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*/
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#define DELAYED_PIC_REF 4 |
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static VLC coeff_token_vlc[4]; |
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static VLC chroma_dc_coeff_token_vlc;
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|
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static VLC total_zeros_vlc[15]; |
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static VLC chroma_dc_total_zeros_vlc[3]; |
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|
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static VLC run_vlc[6]; |
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static VLC run7_vlc;
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|
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static void svq3_luma_dc_dequant_idct_c(DCTELEM *block, int qp); |
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static void svq3_add_idct_c(uint8_t *dst, DCTELEM *block, int stride, int qp, int dc); |
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static void filter_mb( H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize); |
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static void filter_mb_fast( H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize); |
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|
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static av_always_inline uint32_t pack16to32(int a, int b){ |
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#ifdef WORDS_BIGENDIAN
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return (b&0xFFFF) + (a<<16); |
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#else
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return (a&0xFFFF) + (b<<16); |
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#endif
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} |
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const uint8_t ff_rem6[52]={ |
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0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, |
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}; |
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|
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const uint8_t ff_div6[52]={ |
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0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, |
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}; |
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static void fill_caches(H264Context *h, int mb_type, int for_deblock){ |
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MpegEncContext * const s = &h->s;
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const int mb_xy= s->mb_x + s->mb_y*s->mb_stride; |
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int topleft_xy, top_xy, topright_xy, left_xy[2]; |
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int topleft_type, top_type, topright_type, left_type[2]; |
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int left_block[8]; |
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int i;
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top_xy = mb_xy - (s->mb_stride << FIELD_PICTURE); |
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//FIXME deblocking could skip the intra and nnz parts.
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if(for_deblock && (h->slice_num == 1 || h->slice_table[mb_xy] == h->slice_table[top_xy]) && !FRAME_MBAFF) |
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return;
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//wow what a mess, why didn't they simplify the interlacing&intra stuff, i can't imagine that these complex rules are worth it
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topleft_xy = top_xy - 1;
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topright_xy= top_xy + 1;
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left_xy[1] = left_xy[0] = mb_xy-1; |
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left_block[0]= 0; |
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left_block[1]= 1; |
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left_block[2]= 2; |
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left_block[3]= 3; |
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left_block[4]= 7; |
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left_block[5]= 10; |
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left_block[6]= 8; |
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left_block[7]= 11; |
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if(FRAME_MBAFF){
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const int pair_xy = s->mb_x + (s->mb_y & ~1)*s->mb_stride; |
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const int top_pair_xy = pair_xy - s->mb_stride; |
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const int topleft_pair_xy = top_pair_xy - 1; |
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const int topright_pair_xy = top_pair_xy + 1; |
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const int topleft_mb_frame_flag = !IS_INTERLACED(s->current_picture.mb_type[topleft_pair_xy]); |
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const int top_mb_frame_flag = !IS_INTERLACED(s->current_picture.mb_type[top_pair_xy]); |
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const int topright_mb_frame_flag = !IS_INTERLACED(s->current_picture.mb_type[topright_pair_xy]); |
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const int left_mb_frame_flag = !IS_INTERLACED(s->current_picture.mb_type[pair_xy-1]); |
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const int curr_mb_frame_flag = !IS_INTERLACED(mb_type); |
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const int bottom = (s->mb_y & 1); |
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tprintf(s->avctx, "fill_caches: curr_mb_frame_flag:%d, left_mb_frame_flag:%d, topleft_mb_frame_flag:%d, top_mb_frame_flag:%d, topright_mb_frame_flag:%d\n", curr_mb_frame_flag, left_mb_frame_flag, topleft_mb_frame_flag, top_mb_frame_flag, topright_mb_frame_flag);
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if (bottom
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? !curr_mb_frame_flag // bottom macroblock
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: (!curr_mb_frame_flag && !top_mb_frame_flag) // top macroblock
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) {
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top_xy -= s->mb_stride; |
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} |
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if (bottom
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? !curr_mb_frame_flag // bottom macroblock
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: (!curr_mb_frame_flag && !topleft_mb_frame_flag) // top macroblock
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) {
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topleft_xy -= s->mb_stride; |
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} |
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if (bottom
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? !curr_mb_frame_flag // bottom macroblock
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: (!curr_mb_frame_flag && !topright_mb_frame_flag) // top macroblock
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) {
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topright_xy -= s->mb_stride; |
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} |
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if (left_mb_frame_flag != curr_mb_frame_flag) {
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left_xy[1] = left_xy[0] = pair_xy - 1; |
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if (curr_mb_frame_flag) {
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if (bottom) {
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left_block[0]= 2; |
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left_block[1]= 2; |
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left_block[2]= 3; |
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left_block[3]= 3; |
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left_block[4]= 8; |
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left_block[5]= 11; |
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left_block[6]= 8; |
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left_block[7]= 11; |
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} else {
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left_block[0]= 0; |
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left_block[1]= 0; |
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left_block[2]= 1; |
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left_block[3]= 1; |
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left_block[4]= 7; |
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left_block[5]= 10; |
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left_block[6]= 7; |
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left_block[7]= 10; |
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} |
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} else {
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left_xy[1] += s->mb_stride;
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//left_block[0]= 0;
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left_block[1]= 2; |
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left_block[2]= 0; |
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left_block[3]= 2; |
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//left_block[4]= 7;
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left_block[5]= 10; |
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left_block[6]= 7; |
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left_block[7]= 10; |
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} |
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} |
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} |
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h->top_mb_xy = top_xy; |
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h->left_mb_xy[0] = left_xy[0]; |
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h->left_mb_xy[1] = left_xy[1]; |
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if(for_deblock){
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topleft_type = 0;
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topright_type = 0;
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top_type = h->slice_table[top_xy ] < 255 ? s->current_picture.mb_type[top_xy] : 0; |
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left_type[0] = h->slice_table[left_xy[0] ] < 255 ? s->current_picture.mb_type[left_xy[0]] : 0; |
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left_type[1] = h->slice_table[left_xy[1] ] < 255 ? s->current_picture.mb_type[left_xy[1]] : 0; |
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if(FRAME_MBAFF && !IS_INTRA(mb_type)){
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int list;
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int v = *(uint16_t*)&h->non_zero_count[mb_xy][14]; |
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for(i=0; i<16; i++) |
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h->non_zero_count_cache[scan8[i]] = (v>>i)&1;
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for(list=0; list<h->list_count; list++){ |
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if(USES_LIST(mb_type,list)){
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uint32_t *src = (uint32_t*)s->current_picture.motion_val[list][h->mb2b_xy[mb_xy]]; |
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uint32_t *dst = (uint32_t*)h->mv_cache[list][scan8[0]];
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int8_t *ref = &s->current_picture.ref_index[list][h->mb2b8_xy[mb_xy]]; |
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for(i=0; i<4; i++, dst+=8, src+=h->b_stride){ |
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dst[0] = src[0]; |
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dst[1] = src[1]; |
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dst[2] = src[2]; |
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dst[3] = src[3]; |
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} |
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*(uint32_t*)&h->ref_cache[list][scan8[ 0]] =
|
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*(uint32_t*)&h->ref_cache[list][scan8[ 2]] = pack16to32(ref[0],ref[1])*0x0101; |
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ref += h->b8_stride; |
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*(uint32_t*)&h->ref_cache[list][scan8[ 8]] =
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*(uint32_t*)&h->ref_cache[list][scan8[10]] = pack16to32(ref[0],ref[1])*0x0101; |
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}else{
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fill_rectangle(&h-> mv_cache[list][scan8[ 0]], 4, 4, 8, 0, 4); |
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fill_rectangle(&h->ref_cache[list][scan8[ 0]], 4, 4, 8, (uint8_t)LIST_NOT_USED, 1); |
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} |
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} |
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} |
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}else{
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topleft_type = h->slice_table[topleft_xy ] == h->slice_num ? s->current_picture.mb_type[topleft_xy] : 0;
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top_type = h->slice_table[top_xy ] == h->slice_num ? s->current_picture.mb_type[top_xy] : 0;
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topright_type= h->slice_table[topright_xy] == h->slice_num ? s->current_picture.mb_type[topright_xy]: 0;
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left_type[0] = h->slice_table[left_xy[0] ] == h->slice_num ? s->current_picture.mb_type[left_xy[0]] : 0; |
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left_type[1] = h->slice_table[left_xy[1] ] == h->slice_num ? s->current_picture.mb_type[left_xy[1]] : 0; |
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} |
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if(IS_INTRA(mb_type)){
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h->topleft_samples_available= |
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h->top_samples_available= |
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h->left_samples_available= 0xFFFF;
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h->topright_samples_available= 0xEEEA;
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if(!IS_INTRA(top_type) && (top_type==0 || h->pps.constrained_intra_pred)){ |
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h->topleft_samples_available= 0xB3FF;
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h->top_samples_available= 0x33FF;
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h->topright_samples_available= 0x26EA;
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} |
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for(i=0; i<2; i++){ |
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if(!IS_INTRA(left_type[i]) && (left_type[i]==0 || h->pps.constrained_intra_pred)){ |
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h->topleft_samples_available&= 0xDF5F;
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h->left_samples_available&= 0x5F5F;
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} |
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} |
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if(!IS_INTRA(topleft_type) && (topleft_type==0 || h->pps.constrained_intra_pred)) |
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h->topleft_samples_available&= 0x7FFF;
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if(!IS_INTRA(topright_type) && (topright_type==0 || h->pps.constrained_intra_pred)) |
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h->topright_samples_available&= 0xFBFF;
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if(IS_INTRA4x4(mb_type)){
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if(IS_INTRA4x4(top_type)){
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h->intra4x4_pred_mode_cache[4+8*0]= h->intra4x4_pred_mode[top_xy][4]; |
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h->intra4x4_pred_mode_cache[5+8*0]= h->intra4x4_pred_mode[top_xy][5]; |
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h->intra4x4_pred_mode_cache[6+8*0]= h->intra4x4_pred_mode[top_xy][6]; |
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h->intra4x4_pred_mode_cache[7+8*0]= h->intra4x4_pred_mode[top_xy][3]; |
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}else{
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int pred;
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if(!top_type || (IS_INTER(top_type) && h->pps.constrained_intra_pred))
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pred= -1;
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else{
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pred= 2;
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} |
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h->intra4x4_pred_mode_cache[4+8*0]= |
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h->intra4x4_pred_mode_cache[5+8*0]= |
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h->intra4x4_pred_mode_cache[6+8*0]= |
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h->intra4x4_pred_mode_cache[7+8*0]= pred; |
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} |
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for(i=0; i<2; i++){ |
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if(IS_INTRA4x4(left_type[i])){
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h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]= h->intra4x4_pred_mode[left_xy[i]][left_block[0+2*i]]; |
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h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= h->intra4x4_pred_mode[left_xy[i]][left_block[1+2*i]]; |
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}else{
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int pred;
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if(!left_type[i] || (IS_INTER(left_type[i]) && h->pps.constrained_intra_pred))
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pred= -1;
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else{
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pred= 2;
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} |
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h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]= |
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h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= pred; |
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} |
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} |
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} |
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} |
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/*
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0 . T T. T T T T
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1 L . .L . . . .
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2 L . .L . . . .
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3 . T TL . . . .
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4 L . .L . . . .
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5 L . .. . . . .
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*/
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//FIXME constraint_intra_pred & partitioning & nnz (lets hope this is just a typo in the spec)
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if(top_type){
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h->non_zero_count_cache[4+8*0]= h->non_zero_count[top_xy][4]; |
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h->non_zero_count_cache[5+8*0]= h->non_zero_count[top_xy][5]; |
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h->non_zero_count_cache[6+8*0]= h->non_zero_count[top_xy][6]; |
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h->non_zero_count_cache[7+8*0]= h->non_zero_count[top_xy][3]; |
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|
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h->non_zero_count_cache[1+8*0]= h->non_zero_count[top_xy][9]; |
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h->non_zero_count_cache[2+8*0]= h->non_zero_count[top_xy][8]; |
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|
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h->non_zero_count_cache[1+8*3]= h->non_zero_count[top_xy][12]; |
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h->non_zero_count_cache[2+8*3]= h->non_zero_count[top_xy][11]; |
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|
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}else{
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h->non_zero_count_cache[4+8*0]= |
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h->non_zero_count_cache[5+8*0]= |
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h->non_zero_count_cache[6+8*0]= |
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h->non_zero_count_cache[7+8*0]= |
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|
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h->non_zero_count_cache[1+8*0]= |
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h->non_zero_count_cache[2+8*0]= |
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h->non_zero_count_cache[1+8*3]= |
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h->non_zero_count_cache[2+8*3]= h->pps.cabac && !IS_INTRA(mb_type) ? 0 : 64; |
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|
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} |
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for (i=0; i<2; i++) { |
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if(left_type[i]){
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h->non_zero_count_cache[3+8*1 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[0+2*i]]; |
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h->non_zero_count_cache[3+8*2 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[1+2*i]]; |
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h->non_zero_count_cache[0+8*1 + 8*i]= h->non_zero_count[left_xy[i]][left_block[4+2*i]]; |
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h->non_zero_count_cache[0+8*4 + 8*i]= h->non_zero_count[left_xy[i]][left_block[5+2*i]]; |
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}else{
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h->non_zero_count_cache[3+8*1 + 2*8*i]= |
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h->non_zero_count_cache[3+8*2 + 2*8*i]= |
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h->non_zero_count_cache[0+8*1 + 8*i]= |
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h->non_zero_count_cache[0+8*4 + 8*i]= h->pps.cabac && !IS_INTRA(mb_type) ? 0 : 64; |
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} |
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} |
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if( h->pps.cabac ) {
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// top_cbp
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if(top_type) {
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h->top_cbp = h->cbp_table[top_xy]; |
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} else if(IS_INTRA(mb_type)) { |
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h->top_cbp = 0x1C0;
|
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} else {
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h->top_cbp = 0;
|
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} |
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// left_cbp
|
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if (left_type[0]) { |
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h->left_cbp = h->cbp_table[left_xy[0]] & 0x1f0; |
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} else if(IS_INTRA(mb_type)) { |
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h->left_cbp = 0x1C0;
|
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} else {
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h->left_cbp = 0;
|
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} |
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if (left_type[0]) { |
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h->left_cbp |= ((h->cbp_table[left_xy[0]]>>((left_block[0]&(~1))+1))&0x1) << 1; |
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} |
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if (left_type[1]) { |
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h->left_cbp |= ((h->cbp_table[left_xy[1]]>>((left_block[2]&(~1))+1))&0x1) << 3; |
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} |
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} |
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|
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#if 1 |
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if(IS_INTER(mb_type) || IS_DIRECT(mb_type)){
|
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int list;
|
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for(list=0; list<h->list_count; list++){ |
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if(!USES_LIST(mb_type, list) && !IS_DIRECT(mb_type) && !h->deblocking_filter){
|
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/*if(!h->mv_cache_clean[list]){
|
| 358 |
memset(h->mv_cache [list], 0, 8*5*2*sizeof(int16_t)); //FIXME clean only input? clean at all?
|
| 359 |
memset(h->ref_cache[list], PART_NOT_AVAILABLE, 8*5*sizeof(int8_t));
|
| 360 |
h->mv_cache_clean[list]= 1;
|
| 361 |
}*/
|
| 362 |
continue;
|
| 363 |
} |
| 364 |
h->mv_cache_clean[list]= 0;
|
| 365 |
|
| 366 |
if(USES_LIST(top_type, list)){
|
| 367 |
const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride; |
| 368 |
const int b8_xy= h->mb2b8_xy[top_xy] + h->b8_stride; |
| 369 |
*(uint32_t*)h->mv_cache[list][scan8[0] + 0 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 0]; |
| 370 |
*(uint32_t*)h->mv_cache[list][scan8[0] + 1 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 1]; |
| 371 |
*(uint32_t*)h->mv_cache[list][scan8[0] + 2 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 2]; |
| 372 |
*(uint32_t*)h->mv_cache[list][scan8[0] + 3 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 3]; |
| 373 |
h->ref_cache[list][scan8[0] + 0 - 1*8]= |
| 374 |
h->ref_cache[list][scan8[0] + 1 - 1*8]= s->current_picture.ref_index[list][b8_xy + 0]; |
| 375 |
h->ref_cache[list][scan8[0] + 2 - 1*8]= |
| 376 |
h->ref_cache[list][scan8[0] + 3 - 1*8]= s->current_picture.ref_index[list][b8_xy + 1]; |
| 377 |
}else{
|
| 378 |
*(uint32_t*)h->mv_cache [list][scan8[0] + 0 - 1*8]= |
| 379 |
*(uint32_t*)h->mv_cache [list][scan8[0] + 1 - 1*8]= |
| 380 |
*(uint32_t*)h->mv_cache [list][scan8[0] + 2 - 1*8]= |
| 381 |
*(uint32_t*)h->mv_cache [list][scan8[0] + 3 - 1*8]= 0; |
| 382 |
*(uint32_t*)&h->ref_cache[list][scan8[0] + 0 - 1*8]= ((top_type ? LIST_NOT_USED : PART_NOT_AVAILABLE)&0xFF)*0x01010101; |
| 383 |
} |
| 384 |
|
| 385 |
for(i=0; i<2; i++){ |
| 386 |
int cache_idx = scan8[0] - 1 + i*2*8; |
| 387 |
if(USES_LIST(left_type[i], list)){
|
| 388 |
const int b_xy= h->mb2b_xy[left_xy[i]] + 3; |
| 389 |
const int b8_xy= h->mb2b8_xy[left_xy[i]] + 1; |
| 390 |
*(uint32_t*)h->mv_cache[list][cache_idx ]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[0+i*2]]; |
| 391 |
*(uint32_t*)h->mv_cache[list][cache_idx+8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[1+i*2]]; |
| 392 |
h->ref_cache[list][cache_idx ]= s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[0+i*2]>>1)]; |
| 393 |
h->ref_cache[list][cache_idx+8]= s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[1+i*2]>>1)]; |
| 394 |
}else{
|
| 395 |
*(uint32_t*)h->mv_cache [list][cache_idx ]= |
| 396 |
*(uint32_t*)h->mv_cache [list][cache_idx+8]= 0; |
| 397 |
h->ref_cache[list][cache_idx ]= |
| 398 |
h->ref_cache[list][cache_idx+8]= left_type[i] ? LIST_NOT_USED : PART_NOT_AVAILABLE;
|
| 399 |
} |
| 400 |
} |
| 401 |
|
| 402 |
if((for_deblock || (IS_DIRECT(mb_type) && !h->direct_spatial_mv_pred)) && !FRAME_MBAFF)
|
| 403 |
continue;
|
| 404 |
|
| 405 |
if(USES_LIST(topleft_type, list)){
|
| 406 |
const int b_xy = h->mb2b_xy[topleft_xy] + 3 + 3*h->b_stride; |
| 407 |
const int b8_xy= h->mb2b8_xy[topleft_xy] + 1 + h->b8_stride; |
| 408 |
*(uint32_t*)h->mv_cache[list][scan8[0] - 1 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy]; |
| 409 |
h->ref_cache[list][scan8[0] - 1 - 1*8]= s->current_picture.ref_index[list][b8_xy]; |
| 410 |
}else{
|
| 411 |
*(uint32_t*)h->mv_cache[list][scan8[0] - 1 - 1*8]= 0; |
| 412 |
h->ref_cache[list][scan8[0] - 1 - 1*8]= topleft_type ? LIST_NOT_USED : PART_NOT_AVAILABLE; |
| 413 |
} |
| 414 |
|
| 415 |
if(USES_LIST(topright_type, list)){
|
| 416 |
const int b_xy= h->mb2b_xy[topright_xy] + 3*h->b_stride; |
| 417 |
const int b8_xy= h->mb2b8_xy[topright_xy] + h->b8_stride; |
| 418 |
*(uint32_t*)h->mv_cache[list][scan8[0] + 4 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy]; |
| 419 |
h->ref_cache[list][scan8[0] + 4 - 1*8]= s->current_picture.ref_index[list][b8_xy]; |
| 420 |
}else{
|
| 421 |
*(uint32_t*)h->mv_cache [list][scan8[0] + 4 - 1*8]= 0; |
| 422 |
h->ref_cache[list][scan8[0] + 4 - 1*8]= topright_type ? LIST_NOT_USED : PART_NOT_AVAILABLE; |
| 423 |
} |
| 424 |
|
| 425 |
if((IS_SKIP(mb_type) || IS_DIRECT(mb_type)) && !FRAME_MBAFF)
|
| 426 |
continue;
|
| 427 |
|
| 428 |
h->ref_cache[list][scan8[5 ]+1] = |
| 429 |
h->ref_cache[list][scan8[7 ]+1] = |
| 430 |
h->ref_cache[list][scan8[13]+1] = //FIXME remove past 3 (init somewhere else) |
| 431 |
h->ref_cache[list][scan8[4 ]] =
|
| 432 |
h->ref_cache[list][scan8[12]] = PART_NOT_AVAILABLE;
|
| 433 |
*(uint32_t*)h->mv_cache [list][scan8[5 ]+1]= |
| 434 |
*(uint32_t*)h->mv_cache [list][scan8[7 ]+1]= |
| 435 |
*(uint32_t*)h->mv_cache [list][scan8[13]+1]= //FIXME remove past 3 (init somewhere else) |
| 436 |
*(uint32_t*)h->mv_cache [list][scan8[4 ]]=
|
| 437 |
*(uint32_t*)h->mv_cache [list][scan8[12]]= 0; |
| 438 |
|
| 439 |
if( h->pps.cabac ) {
|
| 440 |
/* XXX beurk, Load mvd */
|
| 441 |
if(USES_LIST(top_type, list)){
|
| 442 |
const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride; |
| 443 |
*(uint32_t*)h->mvd_cache[list][scan8[0] + 0 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 0]; |
| 444 |
*(uint32_t*)h->mvd_cache[list][scan8[0] + 1 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 1]; |
| 445 |
*(uint32_t*)h->mvd_cache[list][scan8[0] + 2 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 2]; |
| 446 |
*(uint32_t*)h->mvd_cache[list][scan8[0] + 3 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 3]; |
| 447 |
}else{
|
| 448 |
*(uint32_t*)h->mvd_cache [list][scan8[0] + 0 - 1*8]= |
| 449 |
*(uint32_t*)h->mvd_cache [list][scan8[0] + 1 - 1*8]= |
| 450 |
*(uint32_t*)h->mvd_cache [list][scan8[0] + 2 - 1*8]= |
| 451 |
*(uint32_t*)h->mvd_cache [list][scan8[0] + 3 - 1*8]= 0; |
| 452 |
} |
| 453 |
if(USES_LIST(left_type[0], list)){ |
| 454 |
const int b_xy= h->mb2b_xy[left_xy[0]] + 3; |
| 455 |
*(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 0*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[0]]; |
| 456 |
*(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[1]]; |
| 457 |
}else{
|
| 458 |
*(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 0*8]= |
| 459 |
*(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 1*8]= 0; |
| 460 |
} |
| 461 |
if(USES_LIST(left_type[1], list)){ |
| 462 |
const int b_xy= h->mb2b_xy[left_xy[1]] + 3; |
| 463 |
*(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 2*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[2]]; |
| 464 |
*(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 3*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[3]]; |
| 465 |
}else{
|
| 466 |
*(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 2*8]= |
| 467 |
*(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 3*8]= 0; |
| 468 |
} |
| 469 |
*(uint32_t*)h->mvd_cache [list][scan8[5 ]+1]= |
| 470 |
*(uint32_t*)h->mvd_cache [list][scan8[7 ]+1]= |
| 471 |
*(uint32_t*)h->mvd_cache [list][scan8[13]+1]= //FIXME remove past 3 (init somewhere else) |
| 472 |
*(uint32_t*)h->mvd_cache [list][scan8[4 ]]=
|
| 473 |
*(uint32_t*)h->mvd_cache [list][scan8[12]]= 0; |
| 474 |
|
| 475 |
if(h->slice_type == B_TYPE){
|
| 476 |
fill_rectangle(&h->direct_cache[scan8[0]], 4, 4, 8, 0, 1); |
| 477 |
|
| 478 |
if(IS_DIRECT(top_type)){
|
| 479 |
*(uint32_t*)&h->direct_cache[scan8[0] - 1*8]= 0x01010101; |
| 480 |
}else if(IS_8X8(top_type)){ |
| 481 |
int b8_xy = h->mb2b8_xy[top_xy] + h->b8_stride;
|
| 482 |
h->direct_cache[scan8[0] + 0 - 1*8]= h->direct_table[b8_xy]; |
| 483 |
h->direct_cache[scan8[0] + 2 - 1*8]= h->direct_table[b8_xy + 1]; |
| 484 |
}else{
|
| 485 |
*(uint32_t*)&h->direct_cache[scan8[0] - 1*8]= 0; |
| 486 |
} |
| 487 |
|
| 488 |
if(IS_DIRECT(left_type[0])) |
| 489 |
h->direct_cache[scan8[0] - 1 + 0*8]= 1; |
| 490 |
else if(IS_8X8(left_type[0])) |
| 491 |
h->direct_cache[scan8[0] - 1 + 0*8]= h->direct_table[h->mb2b8_xy[left_xy[0]] + 1 + h->b8_stride*(left_block[0]>>1)]; |
| 492 |
else
|
| 493 |
h->direct_cache[scan8[0] - 1 + 0*8]= 0; |
| 494 |
|
| 495 |
if(IS_DIRECT(left_type[1])) |
| 496 |
h->direct_cache[scan8[0] - 1 + 2*8]= 1; |
| 497 |
else if(IS_8X8(left_type[1])) |
| 498 |
h->direct_cache[scan8[0] - 1 + 2*8]= h->direct_table[h->mb2b8_xy[left_xy[1]] + 1 + h->b8_stride*(left_block[2]>>1)]; |
| 499 |
else
|
| 500 |
h->direct_cache[scan8[0] - 1 + 2*8]= 0; |
| 501 |
} |
| 502 |
} |
| 503 |
|
| 504 |
if(FRAME_MBAFF){
|
| 505 |
#define MAP_MVS\
|
| 506 |
MAP_F2F(scan8[0] - 1 - 1*8, topleft_type)\ |
| 507 |
MAP_F2F(scan8[0] + 0 - 1*8, top_type)\ |
| 508 |
MAP_F2F(scan8[0] + 1 - 1*8, top_type)\ |
| 509 |
MAP_F2F(scan8[0] + 2 - 1*8, top_type)\ |
| 510 |
MAP_F2F(scan8[0] + 3 - 1*8, top_type)\ |
| 511 |
MAP_F2F(scan8[0] + 4 - 1*8, topright_type)\ |
| 512 |
MAP_F2F(scan8[0] - 1 + 0*8, left_type[0])\ |
| 513 |
MAP_F2F(scan8[0] - 1 + 1*8, left_type[0])\ |
| 514 |
MAP_F2F(scan8[0] - 1 + 2*8, left_type[1])\ |
| 515 |
MAP_F2F(scan8[0] - 1 + 3*8, left_type[1]) |
| 516 |
if(MB_FIELD){
|
| 517 |
#define MAP_F2F(idx, mb_type)\
|
| 518 |
if(!IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0){\ |
| 519 |
h->ref_cache[list][idx] <<= 1;\
|
| 520 |
h->mv_cache[list][idx][1] /= 2;\ |
| 521 |
h->mvd_cache[list][idx][1] /= 2;\ |
| 522 |
} |
| 523 |
MAP_MVS |
| 524 |
#undef MAP_F2F
|
| 525 |
}else{
|
| 526 |
#define MAP_F2F(idx, mb_type)\
|
| 527 |
if(IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0){\ |
| 528 |
h->ref_cache[list][idx] >>= 1;\
|
| 529 |
h->mv_cache[list][idx][1] <<= 1;\ |
| 530 |
h->mvd_cache[list][idx][1] <<= 1;\ |
| 531 |
} |
| 532 |
MAP_MVS |
| 533 |
#undef MAP_F2F
|
| 534 |
} |
| 535 |
} |
| 536 |
} |
| 537 |
} |
| 538 |
#endif
|
| 539 |
|
| 540 |
h->neighbor_transform_size= !!IS_8x8DCT(top_type) + !!IS_8x8DCT(left_type[0]);
|
| 541 |
} |
| 542 |
|
| 543 |
static inline void write_back_intra_pred_mode(H264Context *h){ |
| 544 |
MpegEncContext * const s = &h->s;
|
| 545 |
const int mb_xy= s->mb_x + s->mb_y*s->mb_stride; |
| 546 |
|
| 547 |
h->intra4x4_pred_mode[mb_xy][0]= h->intra4x4_pred_mode_cache[7+8*1]; |
| 548 |
h->intra4x4_pred_mode[mb_xy][1]= h->intra4x4_pred_mode_cache[7+8*2]; |
| 549 |
h->intra4x4_pred_mode[mb_xy][2]= h->intra4x4_pred_mode_cache[7+8*3]; |
| 550 |
h->intra4x4_pred_mode[mb_xy][3]= h->intra4x4_pred_mode_cache[7+8*4]; |
| 551 |
h->intra4x4_pred_mode[mb_xy][4]= h->intra4x4_pred_mode_cache[4+8*4]; |
| 552 |
h->intra4x4_pred_mode[mb_xy][5]= h->intra4x4_pred_mode_cache[5+8*4]; |
| 553 |
h->intra4x4_pred_mode[mb_xy][6]= h->intra4x4_pred_mode_cache[6+8*4]; |
| 554 |
} |
| 555 |
|
| 556 |
/**
|
| 557 |
* checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
|
| 558 |
*/
|
| 559 |
static inline int check_intra4x4_pred_mode(H264Context *h){ |
| 560 |
MpegEncContext * const s = &h->s;
|
| 561 |
static const int8_t top [12]= {-1, 0,LEFT_DC_PRED,-1,-1,-1,-1,-1, 0}; |
| 562 |
static const int8_t left[12]= { 0,-1, TOP_DC_PRED, 0,-1,-1,-1, 0,-1,DC_128_PRED}; |
| 563 |
int i;
|
| 564 |
|
| 565 |
if(!(h->top_samples_available&0x8000)){ |
| 566 |
for(i=0; i<4; i++){ |
| 567 |
int status= top[ h->intra4x4_pred_mode_cache[scan8[0] + i] ]; |
| 568 |
if(status<0){ |
| 569 |
av_log(h->s.avctx, AV_LOG_ERROR, "top block unavailable for requested intra4x4 mode %d at %d %d\n", status, s->mb_x, s->mb_y);
|
| 570 |
return -1; |
| 571 |
} else if(status){ |
| 572 |
h->intra4x4_pred_mode_cache[scan8[0] + i]= status;
|
| 573 |
} |
| 574 |
} |
| 575 |
} |
| 576 |
|
| 577 |
if(!(h->left_samples_available&0x8000)){ |
| 578 |
for(i=0; i<4; i++){ |
| 579 |
int status= left[ h->intra4x4_pred_mode_cache[scan8[0] + 8*i] ]; |
| 580 |
if(status<0){ |
| 581 |
av_log(h->s.avctx, AV_LOG_ERROR, "left block unavailable for requested intra4x4 mode %d at %d %d\n", status, s->mb_x, s->mb_y);
|
| 582 |
return -1; |
| 583 |
} else if(status){ |
| 584 |
h->intra4x4_pred_mode_cache[scan8[0] + 8*i]= status; |
| 585 |
} |
| 586 |
} |
| 587 |
} |
| 588 |
|
| 589 |
return 0; |
| 590 |
} //FIXME cleanup like next
|
| 591 |
|
| 592 |
/**
|
| 593 |
* checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
|
| 594 |
*/
|
| 595 |
static inline int check_intra_pred_mode(H264Context *h, int mode){ |
| 596 |
MpegEncContext * const s = &h->s;
|
| 597 |
static const int8_t top [7]= {LEFT_DC_PRED8x8, 1,-1,-1}; |
| 598 |
static const int8_t left[7]= { TOP_DC_PRED8x8,-1, 2,-1,DC_128_PRED8x8}; |
| 599 |
|
| 600 |
if(mode > 6U) { |
| 601 |
av_log(h->s.avctx, AV_LOG_ERROR, "out of range intra chroma pred mode at %d %d\n", s->mb_x, s->mb_y);
|
| 602 |
return -1; |
| 603 |
} |
| 604 |
|
| 605 |
if(!(h->top_samples_available&0x8000)){ |
| 606 |
mode= top[ mode ]; |
| 607 |
if(mode<0){ |
| 608 |
av_log(h->s.avctx, AV_LOG_ERROR, "top block unavailable for requested intra mode at %d %d\n", s->mb_x, s->mb_y);
|
| 609 |
return -1; |
| 610 |
} |
| 611 |
} |
| 612 |
|
| 613 |
if(!(h->left_samples_available&0x8000)){ |
| 614 |
mode= left[ mode ]; |
| 615 |
if(mode<0){ |
| 616 |
av_log(h->s.avctx, AV_LOG_ERROR, "left block unavailable for requested intra mode at %d %d\n", s->mb_x, s->mb_y);
|
| 617 |
return -1; |
| 618 |
} |
| 619 |
} |
| 620 |
|
| 621 |
return mode;
|
| 622 |
} |
| 623 |
|
| 624 |
/**
|
| 625 |
* gets the predicted intra4x4 prediction mode.
|
| 626 |
*/
|
| 627 |
static inline int pred_intra_mode(H264Context *h, int n){ |
| 628 |
const int index8= scan8[n]; |
| 629 |
const int left= h->intra4x4_pred_mode_cache[index8 - 1]; |
| 630 |
const int top = h->intra4x4_pred_mode_cache[index8 - 8]; |
| 631 |
const int min= FFMIN(left, top); |
| 632 |
|
| 633 |
tprintf(h->s.avctx, "mode:%d %d min:%d\n", left ,top, min);
|
| 634 |
|
| 635 |
if(min<0) return DC_PRED; |
| 636 |
else return min; |
| 637 |
} |
| 638 |
|
| 639 |
static inline void write_back_non_zero_count(H264Context *h){ |
| 640 |
MpegEncContext * const s = &h->s;
|
| 641 |
const int mb_xy= s->mb_x + s->mb_y*s->mb_stride; |
| 642 |
|
| 643 |
h->non_zero_count[mb_xy][0]= h->non_zero_count_cache[7+8*1]; |
| 644 |
h->non_zero_count[mb_xy][1]= h->non_zero_count_cache[7+8*2]; |
| 645 |
h->non_zero_count[mb_xy][2]= h->non_zero_count_cache[7+8*3]; |
| 646 |
h->non_zero_count[mb_xy][3]= h->non_zero_count_cache[7+8*4]; |
| 647 |
h->non_zero_count[mb_xy][4]= h->non_zero_count_cache[4+8*4]; |
| 648 |
h->non_zero_count[mb_xy][5]= h->non_zero_count_cache[5+8*4]; |
| 649 |
h->non_zero_count[mb_xy][6]= h->non_zero_count_cache[6+8*4]; |
| 650 |
|
| 651 |
h->non_zero_count[mb_xy][9]= h->non_zero_count_cache[1+8*2]; |
| 652 |
h->non_zero_count[mb_xy][8]= h->non_zero_count_cache[2+8*2]; |
| 653 |
h->non_zero_count[mb_xy][7]= h->non_zero_count_cache[2+8*1]; |
| 654 |
|
| 655 |
h->non_zero_count[mb_xy][12]=h->non_zero_count_cache[1+8*5]; |
| 656 |
h->non_zero_count[mb_xy][11]=h->non_zero_count_cache[2+8*5]; |
| 657 |
h->non_zero_count[mb_xy][10]=h->non_zero_count_cache[2+8*4]; |
| 658 |
|
| 659 |
if(FRAME_MBAFF){
|
| 660 |
// store all luma nnzs, for deblocking
|
| 661 |
int v = 0, i; |
| 662 |
for(i=0; i<16; i++) |
| 663 |
v += (!!h->non_zero_count_cache[scan8[i]]) << i; |
| 664 |
*(uint16_t*)&h->non_zero_count[mb_xy][14] = v;
|
| 665 |
} |
| 666 |
} |
| 667 |
|
| 668 |
/**
|
| 669 |
* gets the predicted number of non zero coefficients.
|
| 670 |
* @param n block index
|
| 671 |
*/
|
| 672 |
static inline int pred_non_zero_count(H264Context *h, int n){ |
| 673 |
const int index8= scan8[n]; |
| 674 |
const int left= h->non_zero_count_cache[index8 - 1]; |
| 675 |
const int top = h->non_zero_count_cache[index8 - 8]; |
| 676 |
int i= left + top;
|
| 677 |
|
| 678 |
if(i<64) i= (i+1)>>1; |
| 679 |
|
| 680 |
tprintf(h->s.avctx, "pred_nnz L%X T%X n%d s%d P%X\n", left, top, n, scan8[n], i&31); |
| 681 |
|
| 682 |
return i&31; |
| 683 |
} |
| 684 |
|
| 685 |
static inline int fetch_diagonal_mv(H264Context *h, const int16_t **C, int i, int list, int part_width){ |
| 686 |
const int topright_ref= h->ref_cache[list][ i - 8 + part_width ]; |
| 687 |
MpegEncContext *s = &h->s; |
| 688 |
|
| 689 |
/* there is no consistent mapping of mvs to neighboring locations that will
|
| 690 |
* make mbaff happy, so we can't move all this logic to fill_caches */
|
| 691 |
if(FRAME_MBAFF){
|
| 692 |
const uint32_t *mb_types = s->current_picture_ptr->mb_type;
|
| 693 |
const int16_t *mv;
|
| 694 |
*(uint32_t*)h->mv_cache[list][scan8[0]-2] = 0; |
| 695 |
*C = h->mv_cache[list][scan8[0]-2]; |
| 696 |
|
| 697 |
if(!MB_FIELD
|
| 698 |
&& (s->mb_y&1) && i < scan8[0]+8 && topright_ref != PART_NOT_AVAILABLE){ |
| 699 |
int topright_xy = s->mb_x + (s->mb_y-1)*s->mb_stride + (i == scan8[0]+3); |
| 700 |
if(IS_INTERLACED(mb_types[topright_xy])){
|
| 701 |
#define SET_DIAG_MV(MV_OP, REF_OP, X4, Y4)\
|
| 702 |
const int x4 = X4, y4 = Y4;\ |
| 703 |
const int mb_type = mb_types[(x4>>2)+(y4>>2)*s->mb_stride];\ |
| 704 |
if(!USES_LIST(mb_type,list) && !IS_8X8(mb_type))\
|
| 705 |
return LIST_NOT_USED;\
|
| 706 |
mv = s->current_picture_ptr->motion_val[list][x4 + y4*h->b_stride];\ |
| 707 |
h->mv_cache[list][scan8[0]-2][0] = mv[0];\ |
| 708 |
h->mv_cache[list][scan8[0]-2][1] = mv[1] MV_OP;\ |
| 709 |
return s->current_picture_ptr->ref_index[list][(x4>>1) + (y4>>1)*h->b8_stride] REF_OP; |
| 710 |
|
| 711 |
SET_DIAG_MV(*2, >>1, s->mb_x*4+(i&7)-4+part_width, s->mb_y*4-1); |
| 712 |
} |
| 713 |
} |
| 714 |
if(topright_ref == PART_NOT_AVAILABLE
|
| 715 |
&& ((s->mb_y&1) || i >= scan8[0]+8) && (i&7)==4 |
| 716 |
&& h->ref_cache[list][scan8[0]-1] != PART_NOT_AVAILABLE){ |
| 717 |
if(!MB_FIELD
|
| 718 |
&& IS_INTERLACED(mb_types[h->left_mb_xy[0]])){
|
| 719 |
SET_DIAG_MV(*2, >>1, s->mb_x*4-1, (s->mb_y|1)*4+(s->mb_y&1)*2+(i>>4)-1); |
| 720 |
} |
| 721 |
if(MB_FIELD
|
| 722 |
&& !IS_INTERLACED(mb_types[h->left_mb_xy[0]])
|
| 723 |
&& i >= scan8[0]+8){ |
| 724 |
// leftshift will turn LIST_NOT_USED into PART_NOT_AVAILABLE, but that's ok.
|
| 725 |
SET_DIAG_MV(>>1, <<1, s->mb_x*4-1, (s->mb_y&~1)*4 - 1 + ((i-scan8[0])>>3)*2); |
| 726 |
} |
| 727 |
} |
| 728 |
#undef SET_DIAG_MV
|
| 729 |
} |
| 730 |
|
| 731 |
if(topright_ref != PART_NOT_AVAILABLE){
|
| 732 |
*C= h->mv_cache[list][ i - 8 + part_width ];
|
| 733 |
return topright_ref;
|
| 734 |
}else{
|
| 735 |
tprintf(s->avctx, "topright MV not available\n");
|
| 736 |
|
| 737 |
*C= h->mv_cache[list][ i - 8 - 1 ]; |
| 738 |
return h->ref_cache[list][ i - 8 - 1 ]; |
| 739 |
} |
| 740 |
} |
| 741 |
|
| 742 |
/**
|
| 743 |
* gets the predicted MV.
|
| 744 |
* @param n the block index
|
| 745 |
* @param part_width the width of the partition (4, 8,16) -> (1, 2, 4)
|
| 746 |
* @param mx the x component of the predicted motion vector
|
| 747 |
* @param my the y component of the predicted motion vector
|
| 748 |
*/
|
| 749 |
static inline void pred_motion(H264Context * const h, int n, int part_width, int list, int ref, int * const mx, int * const my){ |
| 750 |
const int index8= scan8[n]; |
| 751 |
const int top_ref= h->ref_cache[list][ index8 - 8 ]; |
| 752 |
const int left_ref= h->ref_cache[list][ index8 - 1 ]; |
| 753 |
const int16_t * const A= h->mv_cache[list][ index8 - 1 ]; |
| 754 |
const int16_t * const B= h->mv_cache[list][ index8 - 8 ]; |
| 755 |
const int16_t * C;
|
| 756 |
int diagonal_ref, match_count;
|
| 757 |
|
| 758 |
assert(part_width==1 || part_width==2 || part_width==4); |
| 759 |
|
| 760 |
/* mv_cache
|
| 761 |
B . . A T T T T
|
| 762 |
U . . L . . , .
|
| 763 |
U . . L . . . .
|
| 764 |
U . . L . . , .
|
| 765 |
. . . L . . . .
|
| 766 |
*/
|
| 767 |
|
| 768 |
diagonal_ref= fetch_diagonal_mv(h, &C, index8, list, part_width); |
| 769 |
match_count= (diagonal_ref==ref) + (top_ref==ref) + (left_ref==ref); |
| 770 |
tprintf(h->s.avctx, "pred_motion match_count=%d\n", match_count);
|
| 771 |
if(match_count > 1){ //most common |
| 772 |
*mx= mid_pred(A[0], B[0], C[0]); |
| 773 |
*my= mid_pred(A[1], B[1], C[1]); |
| 774 |
}else if(match_count==1){ |
| 775 |
if(left_ref==ref){
|
| 776 |
*mx= A[0];
|
| 777 |
*my= A[1];
|
| 778 |
}else if(top_ref==ref){ |
| 779 |
*mx= B[0];
|
| 780 |
*my= B[1];
|
| 781 |
}else{
|
| 782 |
*mx= C[0];
|
| 783 |
*my= C[1];
|
| 784 |
} |
| 785 |
}else{
|
| 786 |
if(top_ref == PART_NOT_AVAILABLE && diagonal_ref == PART_NOT_AVAILABLE && left_ref != PART_NOT_AVAILABLE){
|
| 787 |
*mx= A[0];
|
| 788 |
*my= A[1];
|
| 789 |
}else{
|
| 790 |
*mx= mid_pred(A[0], B[0], C[0]); |
| 791 |
*my= mid_pred(A[1], B[1], C[1]); |
| 792 |
} |
| 793 |
} |
| 794 |
|
| 795 |
tprintf(h->s.avctx, "pred_motion (%2d %2d %2d) (%2d %2d %2d) (%2d %2d %2d) -> (%2d %2d %2d) at %2d %2d %d list %d\n", top_ref, B[0], B[1], diagonal_ref, C[0], C[1], left_ref, A[0], A[1], ref, *mx, *my, h->s.mb_x, h->s.mb_y, n, list); |
| 796 |
} |
| 797 |
|
| 798 |
/**
|
| 799 |
* gets the directionally predicted 16x8 MV.
|
| 800 |
* @param n the block index
|
| 801 |
* @param mx the x component of the predicted motion vector
|
| 802 |
* @param my the y component of the predicted motion vector
|
| 803 |
*/
|
| 804 |
static inline void pred_16x8_motion(H264Context * const h, int n, int list, int ref, int * const mx, int * const my){ |
| 805 |
if(n==0){ |
| 806 |
const int top_ref= h->ref_cache[list][ scan8[0] - 8 ]; |
| 807 |
const int16_t * const B= h->mv_cache[list][ scan8[0] - 8 ]; |
| 808 |
|
| 809 |
tprintf(h->s.avctx, "pred_16x8: (%2d %2d %2d) at %2d %2d %d list %d\n", top_ref, B[0], B[1], h->s.mb_x, h->s.mb_y, n, list); |
| 810 |
|
| 811 |
if(top_ref == ref){
|
| 812 |
*mx= B[0];
|
| 813 |
*my= B[1];
|
| 814 |
return;
|
| 815 |
} |
| 816 |
}else{
|
| 817 |
const int left_ref= h->ref_cache[list][ scan8[8] - 1 ]; |
| 818 |
const int16_t * const A= h->mv_cache[list][ scan8[8] - 1 ]; |
| 819 |
|
| 820 |
tprintf(h->s.avctx, "pred_16x8: (%2d %2d %2d) at %2d %2d %d list %d\n", left_ref, A[0], A[1], h->s.mb_x, h->s.mb_y, n, list); |
| 821 |
|
| 822 |
if(left_ref == ref){
|
| 823 |
*mx= A[0];
|
| 824 |
*my= A[1];
|
| 825 |
return;
|
| 826 |
} |
| 827 |
} |
| 828 |
|
| 829 |
//RARE
|
| 830 |
pred_motion(h, n, 4, list, ref, mx, my);
|
| 831 |
} |
| 832 |
|
| 833 |
/**
|
| 834 |
* gets the directionally predicted 8x16 MV.
|
| 835 |
* @param n the block index
|
| 836 |
* @param mx the x component of the predicted motion vector
|
| 837 |
* @param my the y component of the predicted motion vector
|
| 838 |
*/
|
| 839 |
static inline void pred_8x16_motion(H264Context * const h, int n, int list, int ref, int * const mx, int * const my){ |
| 840 |
if(n==0){ |
| 841 |
const int left_ref= h->ref_cache[list][ scan8[0] - 1 ]; |
| 842 |
const int16_t * const A= h->mv_cache[list][ scan8[0] - 1 ]; |
| 843 |
|
| 844 |
tprintf(h->s.avctx, "pred_8x16: (%2d %2d %2d) at %2d %2d %d list %d\n", left_ref, A[0], A[1], h->s.mb_x, h->s.mb_y, n, list); |
| 845 |
|
| 846 |
if(left_ref == ref){
|
| 847 |
*mx= A[0];
|
| 848 |
*my= A[1];
|
| 849 |
return;
|
| 850 |
} |
| 851 |
}else{
|
| 852 |
const int16_t * C;
|
| 853 |
int diagonal_ref;
|
| 854 |
|
| 855 |
diagonal_ref= fetch_diagonal_mv(h, &C, scan8[4], list, 2); |
| 856 |
|
| 857 |
tprintf(h->s.avctx, "pred_8x16: (%2d %2d %2d) at %2d %2d %d list %d\n", diagonal_ref, C[0], C[1], h->s.mb_x, h->s.mb_y, n, list); |
| 858 |
|
| 859 |
if(diagonal_ref == ref){
|
| 860 |
*mx= C[0];
|
| 861 |
*my= C[1];
|
| 862 |
return;
|
| 863 |
} |
| 864 |
} |
| 865 |
|
| 866 |
//RARE
|
| 867 |
pred_motion(h, n, 2, list, ref, mx, my);
|
| 868 |
} |
| 869 |
|
| 870 |
static inline void pred_pskip_motion(H264Context * const h, int * const mx, int * const my){ |
| 871 |
const int top_ref = h->ref_cache[0][ scan8[0] - 8 ]; |
| 872 |
const int left_ref= h->ref_cache[0][ scan8[0] - 1 ]; |
| 873 |
|
| 874 |
tprintf(h->s.avctx, "pred_pskip: (%d) (%d) at %2d %2d\n", top_ref, left_ref, h->s.mb_x, h->s.mb_y);
|
| 875 |
|
| 876 |
if(top_ref == PART_NOT_AVAILABLE || left_ref == PART_NOT_AVAILABLE
|
| 877 |
|| (top_ref == 0 && *(uint32_t*)h->mv_cache[0][ scan8[0] - 8 ] == 0) |
| 878 |
|| (left_ref == 0 && *(uint32_t*)h->mv_cache[0][ scan8[0] - 1 ] == 0)){ |
| 879 |
|
| 880 |
*mx = *my = 0;
|
| 881 |
return;
|
| 882 |
} |
| 883 |
|
| 884 |
pred_motion(h, 0, 4, 0, 0, mx, my); |
| 885 |
|
| 886 |
return;
|
| 887 |
} |
| 888 |
|
| 889 |
static inline void direct_dist_scale_factor(H264Context * const h){ |
| 890 |
const int poc = h->s.current_picture_ptr->poc; |
| 891 |
const int poc1 = h->ref_list[1][0].poc; |
| 892 |
int i;
|
| 893 |
for(i=0; i<h->ref_count[0]; i++){ |
| 894 |
int poc0 = h->ref_list[0][i].poc; |
| 895 |
int td = av_clip(poc1 - poc0, -128, 127); |
| 896 |
if(td == 0 /* FIXME || pic0 is a long-term ref */){ |
| 897 |
h->dist_scale_factor[i] = 256;
|
| 898 |
}else{
|
| 899 |
int tb = av_clip(poc - poc0, -128, 127); |
| 900 |
int tx = (16384 + (FFABS(td) >> 1)) / td; |
| 901 |
h->dist_scale_factor[i] = av_clip((tb*tx + 32) >> 6, -1024, 1023); |
| 902 |
} |
| 903 |
} |
| 904 |
if(FRAME_MBAFF){
|
| 905 |
for(i=0; i<h->ref_count[0]; i++){ |
| 906 |
h->dist_scale_factor_field[2*i] =
|
| 907 |
h->dist_scale_factor_field[2*i+1] = h->dist_scale_factor[i]; |
| 908 |
} |
| 909 |
} |
| 910 |
} |
| 911 |
static inline void direct_ref_list_init(H264Context * const h){ |
| 912 |
MpegEncContext * const s = &h->s;
|
| 913 |
Picture * const ref1 = &h->ref_list[1][0]; |
| 914 |
Picture * const cur = s->current_picture_ptr;
|
| 915 |
int list, i, j;
|
| 916 |
if(cur->pict_type == I_TYPE)
|
| 917 |
cur->ref_count[0] = 0; |
| 918 |
if(cur->pict_type != B_TYPE)
|
| 919 |
cur->ref_count[1] = 0; |
| 920 |
for(list=0; list<2; list++){ |
| 921 |
cur->ref_count[list] = h->ref_count[list]; |
| 922 |
for(j=0; j<h->ref_count[list]; j++) |
| 923 |
cur->ref_poc[list][j] = h->ref_list[list][j].poc; |
| 924 |
} |
| 925 |
if(cur->pict_type != B_TYPE || h->direct_spatial_mv_pred)
|
| 926 |
return;
|
| 927 |
for(list=0; list<2; list++){ |
| 928 |
for(i=0; i<ref1->ref_count[list]; i++){ |
| 929 |
const int poc = ref1->ref_poc[list][i]; |
| 930 |
h->map_col_to_list0[list][i] = 0; /* bogus; fills in for missing frames */ |
| 931 |
for(j=0; j<h->ref_count[list]; j++) |
| 932 |
if(h->ref_list[list][j].poc == poc){
|
| 933 |
h->map_col_to_list0[list][i] = j; |
| 934 |
break;
|
| 935 |
} |
| 936 |
} |
| 937 |
} |
| 938 |
if(FRAME_MBAFF){
|
| 939 |
for(list=0; list<2; list++){ |
| 940 |
for(i=0; i<ref1->ref_count[list]; i++){ |
| 941 |
j = h->map_col_to_list0[list][i]; |
| 942 |
h->map_col_to_list0_field[list][2*i] = 2*j; |
| 943 |
h->map_col_to_list0_field[list][2*i+1] = 2*j+1; |
| 944 |
} |
| 945 |
} |
| 946 |
} |
| 947 |
} |
| 948 |
|
| 949 |
static inline void pred_direct_motion(H264Context * const h, int *mb_type){ |
| 950 |
MpegEncContext * const s = &h->s;
|
| 951 |
const int mb_xy = s->mb_x + s->mb_y*s->mb_stride; |
| 952 |
const int b8_xy = 2*s->mb_x + 2*s->mb_y*h->b8_stride; |
| 953 |
const int b4_xy = 4*s->mb_x + 4*s->mb_y*h->b_stride; |
| 954 |
const int mb_type_col = h->ref_list[1][0].mb_type[mb_xy]; |
| 955 |
const int16_t (*l1mv0)[2] = (const int16_t (*)[2]) &h->ref_list[1][0].motion_val[0][b4_xy]; |
| 956 |
const int16_t (*l1mv1)[2] = (const int16_t (*)[2]) &h->ref_list[1][0].motion_val[1][b4_xy]; |
| 957 |
const int8_t *l1ref0 = &h->ref_list[1][0].ref_index[0][b8_xy]; |
| 958 |
const int8_t *l1ref1 = &h->ref_list[1][0].ref_index[1][b8_xy]; |
| 959 |
const int is_b8x8 = IS_8X8(*mb_type); |
| 960 |
unsigned int sub_mb_type; |
| 961 |
int i8, i4;
|
| 962 |
|
| 963 |
#define MB_TYPE_16x16_OR_INTRA (MB_TYPE_16x16|MB_TYPE_INTRA4x4|MB_TYPE_INTRA16x16|MB_TYPE_INTRA_PCM)
|
| 964 |
if(IS_8X8(mb_type_col) && !h->sps.direct_8x8_inference_flag){
|
| 965 |
/* FIXME save sub mb types from previous frames (or derive from MVs)
|
| 966 |
* so we know exactly what block size to use */
|
| 967 |
sub_mb_type = MB_TYPE_8x8|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_SUB_4x4 */
|
| 968 |
*mb_type = MB_TYPE_8x8|MB_TYPE_L0L1; |
| 969 |
}else if(!is_b8x8 && (mb_type_col & MB_TYPE_16x16_OR_INTRA)){ |
| 970 |
sub_mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_SUB_8x8 */
|
| 971 |
*mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_16x16 */
|
| 972 |
}else{
|
| 973 |
sub_mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_SUB_8x8 */
|
| 974 |
*mb_type = MB_TYPE_8x8|MB_TYPE_L0L1; |
| 975 |
} |
| 976 |
if(!is_b8x8)
|
| 977 |
*mb_type |= MB_TYPE_DIRECT2; |
| 978 |
if(MB_FIELD)
|
| 979 |
*mb_type |= MB_TYPE_INTERLACED; |
| 980 |
|
| 981 |
tprintf(s->avctx, "mb_type = %08x, sub_mb_type = %08x, is_b8x8 = %d, mb_type_col = %08x\n", *mb_type, sub_mb_type, is_b8x8, mb_type_col);
|
| 982 |
|
| 983 |
if(h->direct_spatial_mv_pred){
|
| 984 |
int ref[2]; |
| 985 |
int mv[2][2]; |
| 986 |
int list;
|
| 987 |
|
| 988 |
/* FIXME interlacing + spatial direct uses wrong colocated block positions */
|
| 989 |
|
| 990 |
/* ref = min(neighbors) */
|
| 991 |
for(list=0; list<2; list++){ |
| 992 |
int refa = h->ref_cache[list][scan8[0] - 1]; |
| 993 |
int refb = h->ref_cache[list][scan8[0] - 8]; |
| 994 |
int refc = h->ref_cache[list][scan8[0] - 8 + 4]; |
| 995 |
if(refc == -2) |
| 996 |
refc = h->ref_cache[list][scan8[0] - 8 - 1]; |
| 997 |
ref[list] = refa; |
| 998 |
if(ref[list] < 0 || (refb < ref[list] && refb >= 0)) |
| 999 |
ref[list] = refb; |
| 1000 |
if(ref[list] < 0 || (refc < ref[list] && refc >= 0)) |
| 1001 |
ref[list] = refc; |
| 1002 |
if(ref[list] < 0) |
| 1003 |
ref[list] = -1;
|
| 1004 |
} |
| 1005 |
|
| 1006 |
if(ref[0] < 0 && ref[1] < 0){ |
| 1007 |
ref[0] = ref[1] = 0; |
| 1008 |
mv[0][0] = mv[0][1] = |
| 1009 |
mv[1][0] = mv[1][1] = 0; |
| 1010 |
}else{
|
| 1011 |
for(list=0; list<2; list++){ |
| 1012 |
if(ref[list] >= 0) |
| 1013 |
pred_motion(h, 0, 4, list, ref[list], &mv[list][0], &mv[list][1]); |
| 1014 |
else
|
| 1015 |
mv[list][0] = mv[list][1] = 0; |
| 1016 |
} |
| 1017 |
} |
| 1018 |
|
| 1019 |
if(ref[1] < 0){ |
| 1020 |
*mb_type &= ~MB_TYPE_P0L1; |
| 1021 |
sub_mb_type &= ~MB_TYPE_P0L1; |
| 1022 |
}else if(ref[0] < 0){ |
| 1023 |
*mb_type &= ~MB_TYPE_P0L0; |
| 1024 |
sub_mb_type &= ~MB_TYPE_P0L0; |
| 1025 |
} |
| 1026 |
|
| 1027 |
if(IS_16X16(*mb_type)){
|
| 1028 |
int a=0, b=0; |
| 1029 |
|
| 1030 |
fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, (uint8_t)ref[0], 1); |
| 1031 |
fill_rectangle(&h->ref_cache[1][scan8[0]], 4, 4, 8, (uint8_t)ref[1], 1); |
| 1032 |
if(!IS_INTRA(mb_type_col)
|
| 1033 |
&& ( (l1ref0[0] == 0 && FFABS(l1mv0[0][0]) <= 1 && FFABS(l1mv0[0][1]) <= 1) |
| 1034 |
|| (l1ref0[0] < 0 && l1ref1[0] == 0 && FFABS(l1mv1[0][0]) <= 1 && FFABS(l1mv1[0][1]) <= 1 |
| 1035 |
&& (h->x264_build>33 || !h->x264_build)))){
|
| 1036 |
if(ref[0] > 0) |
| 1037 |
a= pack16to32(mv[0][0],mv[0][1]); |
| 1038 |
if(ref[1] > 0) |
| 1039 |
b= pack16to32(mv[1][0],mv[1][1]); |
| 1040 |
}else{
|
| 1041 |
a= pack16to32(mv[0][0],mv[0][1]); |
| 1042 |
b= pack16to32(mv[1][0],mv[1][1]); |
| 1043 |
} |
| 1044 |
fill_rectangle(&h->mv_cache[0][scan8[0]], 4, 4, 8, a, 4); |
| 1045 |
fill_rectangle(&h->mv_cache[1][scan8[0]], 4, 4, 8, b, 4); |
| 1046 |
}else{
|
| 1047 |
for(i8=0; i8<4; i8++){ |
| 1048 |
const int x8 = i8&1; |
| 1049 |
const int y8 = i8>>1; |
| 1050 |
|
| 1051 |
if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))
|
| 1052 |
continue;
|
| 1053 |
h->sub_mb_type[i8] = sub_mb_type; |
| 1054 |
|
| 1055 |
fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, pack16to32(mv[0][0],mv[0][1]), 4); |
| 1056 |
fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, pack16to32(mv[1][0],mv[1][1]), 4); |
| 1057 |
fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, (uint8_t)ref[0], 1); |
| 1058 |
fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, (uint8_t)ref[1], 1); |
| 1059 |
|
| 1060 |
/* col_zero_flag */
|
| 1061 |
if(!IS_INTRA(mb_type_col) && ( l1ref0[x8 + y8*h->b8_stride] == 0 |
| 1062 |
|| (l1ref0[x8 + y8*h->b8_stride] < 0 && l1ref1[x8 + y8*h->b8_stride] == 0 |
| 1063 |
&& (h->x264_build>33 || !h->x264_build)))){
|
| 1064 |
const int16_t (*l1mv)[2]= l1ref0[x8 + y8*h->b8_stride] == 0 ? l1mv0 : l1mv1; |
| 1065 |
if(IS_SUB_8X8(sub_mb_type)){
|
| 1066 |
const int16_t *mv_col = l1mv[x8*3 + y8*3*h->b_stride]; |
| 1067 |
if(FFABS(mv_col[0]) <= 1 && FFABS(mv_col[1]) <= 1){ |
| 1068 |
if(ref[0] == 0) |
| 1069 |
fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, 0, 4); |
| 1070 |
if(ref[1] == 0) |
| 1071 |
fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, 0, 4); |
| 1072 |
} |
| 1073 |
}else
|
| 1074 |
for(i4=0; i4<4; i4++){ |
| 1075 |
const int16_t *mv_col = l1mv[x8*2 + (i4&1) + (y8*2 + (i4>>1))*h->b_stride]; |
| 1076 |
if(FFABS(mv_col[0]) <= 1 && FFABS(mv_col[1]) <= 1){ |
| 1077 |
if(ref[0] == 0) |
| 1078 |
*(uint32_t*)h->mv_cache[0][scan8[i8*4+i4]] = 0; |
| 1079 |
if(ref[1] == 0) |
| 1080 |
*(uint32_t*)h->mv_cache[1][scan8[i8*4+i4]] = 0; |
| 1081 |
} |
| 1082 |
} |
| 1083 |
} |
| 1084 |
} |
| 1085 |
} |
| 1086 |
}else{ /* direct temporal mv pred */ |
| 1087 |
const int *map_col_to_list0[2] = {h->map_col_to_list0[0], h->map_col_to_list0[1]}; |
| 1088 |
const int *dist_scale_factor = h->dist_scale_factor; |
| 1089 |
|
| 1090 |
if(FRAME_MBAFF){
|
| 1091 |
if(IS_INTERLACED(*mb_type)){
|
| 1092 |
map_col_to_list0[0] = h->map_col_to_list0_field[0]; |
| 1093 |
map_col_to_list0[1] = h->map_col_to_list0_field[1]; |
| 1094 |
dist_scale_factor = h->dist_scale_factor_field; |
| 1095 |
} |
| 1096 |
if(IS_INTERLACED(*mb_type) != IS_INTERLACED(mb_type_col)){
|
| 1097 |
/* FIXME assumes direct_8x8_inference == 1 */
|
| 1098 |
const int pair_xy = s->mb_x + (s->mb_y&~1)*s->mb_stride; |
| 1099 |
int mb_types_col[2]; |
| 1100 |
int y_shift;
|
| 1101 |
|
| 1102 |
*mb_type = MB_TYPE_8x8|MB_TYPE_L0L1 |
| 1103 |
| (is_b8x8 ? 0 : MB_TYPE_DIRECT2)
|
| 1104 |
| (*mb_type & MB_TYPE_INTERLACED); |
| 1105 |
sub_mb_type = MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2|MB_TYPE_16x16; |
| 1106 |
|
| 1107 |
if(IS_INTERLACED(*mb_type)){
|
| 1108 |
/* frame to field scaling */
|
| 1109 |
mb_types_col[0] = h->ref_list[1][0].mb_type[pair_xy]; |
| 1110 |
mb_types_col[1] = h->ref_list[1][0].mb_type[pair_xy+s->mb_stride]; |
| 1111 |
if(s->mb_y&1){ |
| 1112 |
l1ref0 -= 2*h->b8_stride;
|
| 1113 |
l1ref1 -= 2*h->b8_stride;
|
| 1114 |
l1mv0 -= 4*h->b_stride;
|
| 1115 |
l1mv1 -= 4*h->b_stride;
|
| 1116 |
} |
| 1117 |
y_shift = 0;
|
| 1118 |
|
| 1119 |
if( (mb_types_col[0] & MB_TYPE_16x16_OR_INTRA) |
| 1120 |
&& (mb_types_col[1] & MB_TYPE_16x16_OR_INTRA)
|
| 1121 |
&& !is_b8x8) |
| 1122 |
*mb_type |= MB_TYPE_16x8; |
| 1123 |
else
|
| 1124 |
*mb_type |= MB_TYPE_8x8; |
| 1125 |
}else{
|
| 1126 |
/* field to frame scaling */
|
| 1127 |
/* col_mb_y = (mb_y&~1) + (topAbsDiffPOC < bottomAbsDiffPOC ? 0 : 1)
|
| 1128 |
* but in MBAFF, top and bottom POC are equal */
|
| 1129 |
int dy = (s->mb_y&1) ? 1 : 2; |
| 1130 |
mb_types_col[0] =
|
| 1131 |
mb_types_col[1] = h->ref_list[1][0].mb_type[pair_xy+s->mb_stride]; |
| 1132 |
l1ref0 += dy*h->b8_stride; |
| 1133 |
l1ref1 += dy*h->b8_stride; |
| 1134 |
l1mv0 += 2*dy*h->b_stride;
|
| 1135 |
l1mv1 += 2*dy*h->b_stride;
|
| 1136 |
y_shift = 2;
|
| 1137 |
|
| 1138 |
if((mb_types_col[0] & (MB_TYPE_16x16_OR_INTRA|MB_TYPE_16x8)) |
| 1139 |
&& !is_b8x8) |
| 1140 |
*mb_type |= MB_TYPE_16x16; |
| 1141 |
else
|
| 1142 |
*mb_type |= MB_TYPE_8x8; |
| 1143 |
} |
| 1144 |
|
| 1145 |
for(i8=0; i8<4; i8++){ |
| 1146 |
const int x8 = i8&1; |
| 1147 |
const int y8 = i8>>1; |
| 1148 |
int ref0, scale;
|
| 1149 |
const int16_t (*l1mv)[2]= l1mv0; |
| 1150 |
|
| 1151 |
if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))
|
| 1152 |
continue;
|
| 1153 |
h->sub_mb_type[i8] = sub_mb_type; |
| 1154 |
|
| 1155 |
fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, 0, 1); |
| 1156 |
if(IS_INTRA(mb_types_col[y8])){
|
| 1157 |
fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, 0, 1); |
| 1158 |
fill_rectangle(&h-> mv_cache[0][scan8[i8*4]], 2, 2, 8, 0, 4); |
| 1159 |
fill_rectangle(&h-> mv_cache[1][scan8[i8*4]], 2, 2, 8, 0, 4); |
| 1160 |
continue;
|
| 1161 |
} |
| 1162 |
|
| 1163 |
ref0 = l1ref0[x8 + (y8*2>>y_shift)*h->b8_stride];
|
| 1164 |
if(ref0 >= 0) |
| 1165 |
ref0 = map_col_to_list0[0][ref0*2>>y_shift]; |
| 1166 |
else{
|
| 1167 |
ref0 = map_col_to_list0[1][l1ref1[x8 + (y8*2>>y_shift)*h->b8_stride]*2>>y_shift]; |
| 1168 |
l1mv= l1mv1; |
| 1169 |
} |
| 1170 |
scale = dist_scale_factor[ref0]; |
| 1171 |
fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, ref0, 1); |
| 1172 |
|
| 1173 |
{
|
| 1174 |
const int16_t *mv_col = l1mv[x8*3 + (y8*6>>y_shift)*h->b_stride]; |
| 1175 |
int my_col = (mv_col[1]<<y_shift)/2; |
| 1176 |
int mx = (scale * mv_col[0] + 128) >> 8; |
| 1177 |
int my = (scale * my_col + 128) >> 8; |
| 1178 |
fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, pack16to32(mx,my), 4); |
| 1179 |
fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, pack16to32(mx-mv_col[0],my-my_col), 4); |
| 1180 |
} |
| 1181 |
} |
| 1182 |
return;
|
| 1183 |
} |
| 1184 |
} |
| 1185 |
|
| 1186 |
/* one-to-one mv scaling */
|
| 1187 |
|
| 1188 |
if(IS_16X16(*mb_type)){
|
| 1189 |
int ref, mv0, mv1;
|
| 1190 |
|
| 1191 |
fill_rectangle(&h->ref_cache[1][scan8[0]], 4, 4, 8, 0, 1); |
| 1192 |
if(IS_INTRA(mb_type_col)){
|
| 1193 |
ref=mv0=mv1=0;
|
| 1194 |
}else{
|
| 1195 |
const int ref0 = l1ref0[0] >= 0 ? map_col_to_list0[0][l1ref0[0]] |
| 1196 |
: map_col_to_list0[1][l1ref1[0]]; |
| 1197 |
const int scale = dist_scale_factor[ref0]; |
| 1198 |
const int16_t *mv_col = l1ref0[0] >= 0 ? l1mv0[0] : l1mv1[0]; |
| 1199 |
int mv_l0[2]; |
| 1200 |
mv_l0[0] = (scale * mv_col[0] + 128) >> 8; |
| 1201 |
mv_l0[1] = (scale * mv_col[1] + 128) >> 8; |
| 1202 |
ref= ref0; |
| 1203 |
mv0= pack16to32(mv_l0[0],mv_l0[1]); |
| 1204 |
mv1= pack16to32(mv_l0[0]-mv_col[0],mv_l0[1]-mv_col[1]); |
| 1205 |
} |
| 1206 |
fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, ref, 1); |
| 1207 |
fill_rectangle(&h-> mv_cache[0][scan8[0]], 4, 4, 8, mv0, 4); |
| 1208 |
fill_rectangle(&h-> mv_cache[1][scan8[0]], 4, 4, 8, mv1, 4); |
| 1209 |
}else{
|
| 1210 |
for(i8=0; i8<4; i8++){ |
| 1211 |
const int x8 = i8&1; |
| 1212 |
const int y8 = i8>>1; |
| 1213 |
int ref0, scale;
|
| 1214 |
const int16_t (*l1mv)[2]= l1mv0; |
| 1215 |
|
| 1216 |
if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))
|
| 1217 |
continue;
|
| 1218 |
h->sub_mb_type[i8] = sub_mb_type; |
| 1219 |
fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, 0, 1); |
| 1220 |
if(IS_INTRA(mb_type_col)){
|
| 1221 |
fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, 0, 1); |
| 1222 |
fill_rectangle(&h-> mv_cache[0][scan8[i8*4]], 2, 2, 8, 0, 4); |
| 1223 |
fill_rectangle(&h-> mv_cache[1][scan8[i8*4]], 2, 2, 8, 0, 4); |
| 1224 |
continue;
|
| 1225 |
} |
| 1226 |
|
| 1227 |
ref0 = l1ref0[x8 + y8*h->b8_stride]; |
| 1228 |
if(ref0 >= 0) |
| 1229 |
ref0 = map_col_to_list0[0][ref0];
|
| 1230 |
else{
|
| 1231 |
ref0 = map_col_to_list0[1][l1ref1[x8 + y8*h->b8_stride]];
|
| 1232 |
l1mv= l1mv1; |
| 1233 |
} |
| 1234 |
scale = dist_scale_factor[ref0]; |
| 1235 |
|
| 1236 |
fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, ref0, 1); |
| 1237 |
if(IS_SUB_8X8(sub_mb_type)){
|
| 1238 |
const int16_t *mv_col = l1mv[x8*3 + y8*3*h->b_stride]; |
| 1239 |
int mx = (scale * mv_col[0] + 128) >> 8; |
| 1240 |
int my = (scale * mv_col[1] + 128) >> 8; |
| 1241 |
fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, pack16to32(mx,my), 4); |
| 1242 |
fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, pack16to32(mx-mv_col[0],my-mv_col[1]), 4); |
| 1243 |
}else
|
| 1244 |
for(i4=0; i4<4; i4++){ |
| 1245 |
const int16_t *mv_col = l1mv[x8*2 + (i4&1) + (y8*2 + (i4>>1))*h->b_stride]; |
| 1246 |
int16_t *mv_l0 = h->mv_cache[0][scan8[i8*4+i4]]; |
| 1247 |
mv_l0[0] = (scale * mv_col[0] + 128) >> 8; |
| 1248 |
mv_l0[1] = (scale * mv_col[1] + 128) >> 8; |
| 1249 |
*(uint32_t*)h->mv_cache[1][scan8[i8*4+i4]] = |
| 1250 |
pack16to32(mv_l0[0]-mv_col[0],mv_l0[1]-mv_col[1]); |
| 1251 |
} |
| 1252 |
} |
| 1253 |
} |
| 1254 |
} |
| 1255 |
} |
| 1256 |
|
| 1257 |
static inline void write_back_motion(H264Context *h, int mb_type){ |
| 1258 |
MpegEncContext * const s = &h->s;
|
| 1259 |
const int b_xy = 4*s->mb_x + 4*s->mb_y*h->b_stride; |
| 1260 |
const int b8_xy= 2*s->mb_x + 2*s->mb_y*h->b8_stride; |
| 1261 |
int list;
|
| 1262 |
|
| 1263 |
if(!USES_LIST(mb_type, 0)) |
| 1264 |
fill_rectangle(&s->current_picture.ref_index[0][b8_xy], 2, 2, h->b8_stride, (uint8_t)LIST_NOT_USED, 1); |
| 1265 |
|
| 1266 |
for(list=0; list<h->list_count; list++){ |
| 1267 |
int y;
|
| 1268 |
if(!USES_LIST(mb_type, list))
|
| 1269 |
continue;
|
| 1270 |
|
| 1271 |
for(y=0; y<4; y++){ |
| 1272 |
*(uint64_t*)s->current_picture.motion_val[list][b_xy + 0 + y*h->b_stride]= *(uint64_t*)h->mv_cache[list][scan8[0]+0 + 8*y]; |
| 1273 |
*(uint64_t*)s->current_picture.motion_val[list][b_xy + 2 + y*h->b_stride]= *(uint64_t*)h->mv_cache[list][scan8[0]+2 + 8*y]; |
| 1274 |
} |
| 1275 |
if( h->pps.cabac ) {
|
| 1276 |
if(IS_SKIP(mb_type))
|
| 1277 |
fill_rectangle(h->mvd_table[list][b_xy], 4, 4, h->b_stride, 0, 4); |
| 1278 |
else
|
| 1279 |
for(y=0; y<4; y++){ |
| 1280 |
*(uint64_t*)h->mvd_table[list][b_xy + 0 + y*h->b_stride]= *(uint64_t*)h->mvd_cache[list][scan8[0]+0 + 8*y]; |
| 1281 |
*(uint64_t*)h->mvd_table[list][b_xy + 2 + y*h->b_stride]= *(uint64_t*)h->mvd_cache[list][scan8[0]+2 + 8*y]; |
| 1282 |
} |
| 1283 |
} |
| 1284 |
|
| 1285 |
{
|
| 1286 |
int8_t *ref_index = &s->current_picture.ref_index[list][b8_xy]; |
| 1287 |
ref_index[0+0*h->b8_stride]= h->ref_cache[list][scan8[0]]; |
| 1288 |
ref_index[1+0*h->b8_stride]= h->ref_cache[list][scan8[4]]; |
| 1289 |
ref_index[0+1*h->b8_stride]= h->ref_cache[list][scan8[8]]; |
| 1290 |
ref_index[1+1*h->b8_stride]= h->ref_cache[list][scan8[12]]; |
| 1291 |
} |
| 1292 |
} |
| 1293 |
|
| 1294 |
if(h->slice_type == B_TYPE && h->pps.cabac){
|
| 1295 |
if(IS_8X8(mb_type)){
|
| 1296 |
uint8_t *direct_table = &h->direct_table[b8_xy]; |
| 1297 |
direct_table[1+0*h->b8_stride] = IS_DIRECT(h->sub_mb_type[1]) ? 1 : 0; |
| 1298 |
direct_table[0+1*h->b8_stride] = IS_DIRECT(h->sub_mb_type[2]) ? 1 : 0; |
| 1299 |
direct_table[1+1*h->b8_stride] = IS_DIRECT(h->sub_mb_type[3]) ? 1 : 0; |
| 1300 |
} |
| 1301 |
} |
| 1302 |
} |
| 1303 |
|
| 1304 |
/**
|
| 1305 |
* Decodes a network abstraction layer unit.
|
| 1306 |
* @param consumed is the number of bytes used as input
|
| 1307 |
* @param length is the length of the array
|
| 1308 |
* @param dst_length is the number of decoded bytes FIXME here or a decode rbsp tailing?
|
| 1309 |
* @returns decoded bytes, might be src+1 if no escapes
|
| 1310 |
*/
|
| 1311 |
static uint8_t *decode_nal(H264Context *h, uint8_t *src, int *dst_length, int *consumed, int length){ |
| 1312 |
int i, si, di;
|
| 1313 |
uint8_t *dst; |
| 1314 |
int bufidx;
|
| 1315 |
|
| 1316 |
// src[0]&0x80; //forbidden bit
|
| 1317 |
h->nal_ref_idc= src[0]>>5; |
| 1318 |
h->nal_unit_type= src[0]&0x1F; |
| 1319 |
|
| 1320 |
src++; length--; |
| 1321 |
#if 0
|
| 1322 |
for(i=0; i<length; i++)
|
| 1323 |
printf("%2X ", src[i]);
|
| 1324 |
#endif
|
| 1325 |
for(i=0; i+1<length; i+=2){ |
| 1326 |
if(src[i]) continue; |
| 1327 |
if(i>0 && src[i-1]==0) i--; |
| 1328 |
if(i+2<length && src[i+1]==0 && src[i+2]<=3){ |
| 1329 |
if(src[i+2]!=3){ |
| 1330 |
/* startcode, so we must be past the end */
|
| 1331 |
length=i; |
| 1332 |
} |
| 1333 |
break;
|
| 1334 |
} |
| 1335 |
} |
| 1336 |
|
| 1337 |
if(i>=length-1){ //no escaped 0 |
| 1338 |
*dst_length= length; |
| 1339 |
*consumed= length+1; //+1 for the header |
| 1340 |
return src;
|
| 1341 |
} |
| 1342 |
|
| 1343 |
bufidx = h->nal_unit_type == NAL_DPC ? 1 : 0; // use second escape buffer for inter data |
| 1344 |
h->rbsp_buffer[bufidx]= av_fast_realloc(h->rbsp_buffer[bufidx], &h->rbsp_buffer_size[bufidx], length); |
| 1345 |
dst= h->rbsp_buffer[bufidx]; |
| 1346 |
|
| 1347 |
if (dst == NULL){ |
| 1348 |
return NULL; |
| 1349 |
} |
| 1350 |
|
| 1351 |
//printf("decoding esc\n");
|
| 1352 |
si=di=0;
|
| 1353 |
while(si<length){
|
| 1354 |
//remove escapes (very rare 1:2^22)
|
| 1355 |
if(si+2<length && src[si]==0 && src[si+1]==0 && src[si+2]<=3){ |
| 1356 |
if(src[si+2]==3){ //escape |
| 1357 |
dst[di++]= 0;
|
| 1358 |
dst[di++]= 0;
|
| 1359 |
si+=3;
|
| 1360 |
continue;
|
| 1361 |
}else //next start code |
| 1362 |
break;
|
| 1363 |
} |
| 1364 |
|
| 1365 |
dst[di++]= src[si++]; |
| 1366 |
} |
| 1367 |
|
| 1368 |
*dst_length= di; |
| 1369 |
*consumed= si + 1;//+1 for the header |
| 1370 |
//FIXME store exact number of bits in the getbitcontext (it is needed for decoding)
|
| 1371 |
return dst;
|
| 1372 |
} |
| 1373 |
|
| 1374 |
/**
|
| 1375 |
* identifies the exact end of the bitstream
|
| 1376 |
* @return the length of the trailing, or 0 if damaged
|
| 1377 |
*/
|
| 1378 |
static int decode_rbsp_trailing(H264Context *h, uint8_t *src){ |
| 1379 |
int v= *src;
|
| 1380 |
int r;
|
| 1381 |
|
| 1382 |
tprintf(h->s.avctx, "rbsp trailing %X\n", v);
|
| 1383 |
|
| 1384 |
for(r=1; r<9; r++){ |
| 1385 |
if(v&1) return r; |
| 1386 |
v>>=1;
|
| 1387 |
} |
| 1388 |
return 0; |
| 1389 |
} |
| 1390 |
|
| 1391 |
/**
|
| 1392 |
* idct tranforms the 16 dc values and dequantize them.
|
| 1393 |
* @param qp quantization parameter
|
| 1394 |
*/
|
| 1395 |
static void h264_luma_dc_dequant_idct_c(DCTELEM *block, int qp, int qmul){ |
| 1396 |
#define stride 16 |
| 1397 |
int i;
|
| 1398 |
int temp[16]; //FIXME check if this is a good idea |
| 1399 |
static const int x_offset[4]={0, 1*stride, 4* stride, 5*stride}; |
| 1400 |
static const int y_offset[4]={0, 2*stride, 8* stride, 10*stride}; |
| 1401 |
|
| 1402 |
//memset(block, 64, 2*256);
|
| 1403 |
//return;
|
| 1404 |
for(i=0; i<4; i++){ |
| 1405 |
const int offset= y_offset[i]; |
| 1406 |
const int z0= block[offset+stride*0] + block[offset+stride*4]; |
| 1407 |
const int z1= block[offset+stride*0] - block[offset+stride*4]; |
| 1408 |
const int z2= block[offset+stride*1] - block[offset+stride*5]; |
| 1409 |
const int z3= block[offset+stride*1] + block[offset+stride*5]; |
| 1410 |
|
| 1411 |
temp[4*i+0]= z0+z3; |
| 1412 |
temp[4*i+1]= z1+z2; |
| 1413 |
temp[4*i+2]= z1-z2; |
| 1414 |
temp[4*i+3]= z0-z3; |
| 1415 |
} |
| 1416 |
|
| 1417 |
for(i=0; i<4; i++){ |
| 1418 |
const int offset= x_offset[i]; |
| 1419 |
const int z0= temp[4*0+i] + temp[4*2+i]; |
| 1420 |
const int z1= temp[4*0+i] - temp[4*2+i]; |
| 1421 |
const int z2= temp[4*1+i] - temp[4*3+i]; |
| 1422 |
const int z3= temp[4*1+i] + temp[4*3+i]; |
| 1423 |
|
| 1424 |
block[stride*0 +offset]= ((((z0 + z3)*qmul + 128 ) >> 8)); //FIXME think about merging this into decode_resdual |
| 1425 |
block[stride*2 +offset]= ((((z1 + z2)*qmul + 128 ) >> 8)); |
| 1426 |
block[stride*8 +offset]= ((((z1 - z2)*qmul + 128 ) >> 8)); |
| 1427 |
block[stride*10+offset]= ((((z0 - z3)*qmul + 128 ) >> 8)); |
| 1428 |
} |
| 1429 |
} |
| 1430 |
|
| 1431 |
#if 0
|
| 1432 |
/**
|
| 1433 |
* dct tranforms the 16 dc values.
|
| 1434 |
* @param qp quantization parameter ??? FIXME
|
| 1435 |
*/
|
| 1436 |
static void h264_luma_dc_dct_c(DCTELEM *block/*, int qp*/){
|
| 1437 |
// const int qmul= dequant_coeff[qp][0];
|
| 1438 |
int i;
|
| 1439 |
int temp[16]; //FIXME check if this is a good idea
|
| 1440 |
static const int x_offset[4]={0, 1*stride, 4* stride, 5*stride};
|
| 1441 |
static const int y_offset[4]={0, 2*stride, 8* stride, 10*stride};
|
| 1442 |
|
| 1443 |
for(i=0; i<4; i++){
|
| 1444 |
const int offset= y_offset[i];
|
| 1445 |
const int z0= block[offset+stride*0] + block[offset+stride*4];
|
| 1446 |
const int z1= block[offset+stride*0] - block[offset+stride*4];
|
| 1447 |
const int z2= block[offset+stride*1] - block[offset+stride*5];
|
| 1448 |
const int z3= block[offset+stride*1] + block[offset+stride*5];
|
| 1449 |
|
| 1450 |
temp[4*i+0]= z0+z3;
|
| 1451 |
temp[4*i+1]= z1+z2;
|
| 1452 |
temp[4*i+2]= z1-z2;
|
| 1453 |
temp[4*i+3]= z0-z3;
|
| 1454 |
}
|
| 1455 |
|
| 1456 |
for(i=0; i<4; i++){
|
| 1457 |
const int offset= x_offset[i];
|
| 1458 |
const int z0= temp[4*0+i] + temp[4*2+i];
|
| 1459 |
const int z1= temp[4*0+i] - temp[4*2+i];
|
| 1460 |
const int z2= temp[4*1+i] - temp[4*3+i];
|
| 1461 |
const int z3= temp[4*1+i] + temp[4*3+i];
|
| 1462 |
|
| 1463 |
block[stride*0 +offset]= (z0 + z3)>>1;
|
| 1464 |
block[stride*2 +offset]= (z1 + z2)>>1;
|
| 1465 |
block[stride*8 +offset]= (z1 - z2)>>1;
|
| 1466 |
block[stride*10+offset]= (z0 - z3)>>1;
|
| 1467 |
}
|
| 1468 |
}
|
| 1469 |
#endif
|
| 1470 |
|
| 1471 |
#undef xStride
|
| 1472 |
#undef stride
|
| 1473 |
|
| 1474 |
static void chroma_dc_dequant_idct_c(DCTELEM *block, int qp, int qmul){ |
| 1475 |
const int stride= 16*2; |
| 1476 |
const int xStride= 16; |
| 1477 |
int a,b,c,d,e;
|
| 1478 |
|
| 1479 |
a= block[stride*0 + xStride*0]; |
| 1480 |
b= block[stride*0 + xStride*1]; |
| 1481 |
c= block[stride*1 + xStride*0]; |
| 1482 |
d= block[stride*1 + xStride*1]; |
| 1483 |
|
| 1484 |
e= a-b; |
| 1485 |
a= a+b; |
| 1486 |
b= c-d; |
| 1487 |
c= c+d; |
| 1488 |
|
| 1489 |
block[stride*0 + xStride*0]= ((a+c)*qmul) >> 7; |
| 1490 |
block[stride*0 + xStride*1]= ((e+b)*qmul) >> 7; |
| 1491 |
block[stride*1 + xStride*0]= ((a-c)*qmul) >> 7; |
| 1492 |
block[stride*1 + xStride*1]= ((e-b)*qmul) >> 7; |
| 1493 |
} |
| 1494 |
|
| 1495 |
#if 0
|
| 1496 |
static void chroma_dc_dct_c(DCTELEM *block){
|
| 1497 |
const int stride= 16*2;
|
| 1498 |
const int xStride= 16;
|
| 1499 |
int a,b,c,d,e;
|
| 1500 |
|
| 1501 |
a= block[stride*0 + xStride*0];
|
| 1502 |
b= block[stride*0 + xStride*1];
|
| 1503 |
c= block[stride*1 + xStride*0];
|
| 1504 |
d= block[stride*1 + xStride*1];
|
| 1505 |
|
| 1506 |
e= a-b;
|
| 1507 |
a= a+b;
|
| 1508 |
b= c-d;
|
| 1509 |
c= c+d;
|
| 1510 |
|
| 1511 |
block[stride*0 + xStride*0]= (a+c);
|
| 1512 |
block[stride*0 + xStride*1]= (e+b);
|
| 1513 |
block[stride*1 + xStride*0]= (a-c);
|
| 1514 |
block[stride*1 + xStride*1]= (e-b);
|
| 1515 |
}
|
| 1516 |
#endif
|
| 1517 |
|
| 1518 |
/**
|
| 1519 |
* gets the chroma qp.
|
| 1520 |
*/
|
| 1521 |
static inline int get_chroma_qp(H264Context *h, int t, int qscale){ |
| 1522 |
return h->pps.chroma_qp_table[t][qscale & 0xff]; |
| 1523 |
} |
| 1524 |
|
| 1525 |
//FIXME need to check that this does not overflow signed 32 bit for low qp, i am not sure, it's very close
|
| 1526 |
//FIXME check that gcc inlines this (and optimizes intra & separate_dc stuff away)
|
| 1527 |
static inline int quantize_c(DCTELEM *block, uint8_t *scantable, int qscale, int intra, int separate_dc){ |
| 1528 |
int i;
|
| 1529 |
const int * const quant_table= quant_coeff[qscale]; |
| 1530 |
const int bias= intra ? (1<<QUANT_SHIFT)/3 : (1<<QUANT_SHIFT)/6; |
| 1531 |
const unsigned int threshold1= (1<<QUANT_SHIFT) - bias - 1; |
| 1532 |
const unsigned int threshold2= (threshold1<<1); |
| 1533 |
int last_non_zero;
|
| 1534 |
|
| 1535 |
if(separate_dc){
|
| 1536 |
if(qscale<=18){ |
| 1537 |
//avoid overflows
|
| 1538 |
const int dc_bias= intra ? (1<<(QUANT_SHIFT-2))/3 : (1<<(QUANT_SHIFT-2))/6; |
| 1539 |
const unsigned int dc_threshold1= (1<<(QUANT_SHIFT-2)) - dc_bias - 1; |
| 1540 |
const unsigned int dc_threshold2= (dc_threshold1<<1); |
| 1541 |
|
| 1542 |
int level= block[0]*quant_coeff[qscale+18][0]; |
| 1543 |
if(((unsigned)(level+dc_threshold1))>dc_threshold2){ |
| 1544 |
if(level>0){ |
| 1545 |
level= (dc_bias + level)>>(QUANT_SHIFT-2);
|
| 1546 |
block[0]= level;
|
| 1547 |
}else{
|
| 1548 |
level= (dc_bias - level)>>(QUANT_SHIFT-2);
|
| 1549 |
block[0]= -level;
|
| 1550 |
} |
| 1551 |
// last_non_zero = i;
|
| 1552 |
}else{
|
| 1553 |
block[0]=0; |
| 1554 |
} |
| 1555 |
}else{
|
| 1556 |
const int dc_bias= intra ? (1<<(QUANT_SHIFT+1))/3 : (1<<(QUANT_SHIFT+1))/6; |
| 1557 |
const unsigned int dc_threshold1= (1<<(QUANT_SHIFT+1)) - dc_bias - 1; |
| 1558 |
const unsigned int dc_threshold2= (dc_threshold1<<1); |
| 1559 |
|
| 1560 |
int level= block[0]*quant_table[0]; |
| 1561 |
if(((unsigned)(level+dc_threshold1))>dc_threshold2){ |
| 1562 |
if(level>0){ |
| 1563 |
level= (dc_bias + level)>>(QUANT_SHIFT+1);
|
| 1564 |
block[0]= level;
|
| 1565 |
}else{
|
| 1566 |
level= (dc_bias - level)>>(QUANT_SHIFT+1);
|
| 1567 |
block[0]= -level;
|
| 1568 |
} |
| 1569 |
// last_non_zero = i;
|
| 1570 |
}else{
|
| 1571 |
block[0]=0; |
| 1572 |
} |
| 1573 |
} |
| 1574 |
last_non_zero= 0;
|
| 1575 |
i=1;
|
| 1576 |
}else{
|
| 1577 |
last_non_zero= -1;
|
| 1578 |
i=0;
|
| 1579 |
} |
| 1580 |
|
| 1581 |
for(; i<16; i++){ |
| 1582 |
const int j= scantable[i]; |
| 1583 |
int level= block[j]*quant_table[j];
|
| 1584 |
|
| 1585 |
// if( bias+level >= (1<<(QMAT_SHIFT - 3))
|
| 1586 |
// || bias-level >= (1<<(QMAT_SHIFT - 3))){
|
| 1587 |
if(((unsigned)(level+threshold1))>threshold2){ |
| 1588 |
if(level>0){ |
| 1589 |
level= (bias + level)>>QUANT_SHIFT; |
| 1590 |
block[j]= level; |
| 1591 |
}else{
|
| 1592 |
level= (bias - level)>>QUANT_SHIFT; |
| 1593 |
block[j]= -level; |
| 1594 |
} |
| 1595 |
last_non_zero = i; |
| 1596 |
}else{
|
| 1597 |
block[j]=0;
|
| 1598 |
} |
| 1599 |
} |
| 1600 |
|
| 1601 |
return last_non_zero;
|
| 1602 |
} |
| 1603 |
|
| 1604 |
static inline void mc_dir_part(H264Context *h, Picture *pic, int n, int square, int chroma_height, int delta, int list, |
| 1605 |
uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, |
| 1606 |
int src_x_offset, int src_y_offset, |
| 1607 |
qpel_mc_func *qpix_op, h264_chroma_mc_func chroma_op){
|
| 1608 |
MpegEncContext * const s = &h->s;
|
| 1609 |
const int mx= h->mv_cache[list][ scan8[n] ][0] + src_x_offset*8; |
| 1610 |
int my= h->mv_cache[list][ scan8[n] ][1] + src_y_offset*8; |
| 1611 |
const int luma_xy= (mx&3) + ((my&3)<<2); |
| 1612 |
uint8_t * src_y = pic->data[0] + (mx>>2) + (my>>2)*h->mb_linesize; |
| 1613 |
uint8_t * src_cb, * src_cr; |
| 1614 |
int extra_width= h->emu_edge_width;
|
| 1615 |
int extra_height= h->emu_edge_height;
|
| 1616 |
int emu=0; |
| 1617 |
const int full_mx= mx>>2; |
| 1618 |
const int full_my= my>>2; |
| 1619 |
const int pic_width = 16*s->mb_width; |
| 1620 |
const int pic_height = 16*s->mb_height >> MB_FIELD; |
| 1621 |
|
| 1622 |
if(!pic->data[0]) //FIXME this is unacceptable, some senseable error concealment must be done for missing reference frames |
| 1623 |
return;
|
| 1624 |
|
| 1625 |
if(mx&7) extra_width -= 3; |
| 1626 |
if(my&7) extra_height -= 3; |
| 1627 |
|
| 1628 |
if( full_mx < 0-extra_width |
| 1629 |
|| full_my < 0-extra_height
|
| 1630 |
|| full_mx + 16/*FIXME*/ > pic_width + extra_width |
| 1631 |
|| full_my + 16/*FIXME*/ > pic_height + extra_height){ |
| 1632 |
ff_emulated_edge_mc(s->edge_emu_buffer, src_y - 2 - 2*h->mb_linesize, h->mb_linesize, 16+5, 16+5/*FIXME*/, full_mx-2, full_my-2, pic_width, pic_height); |
| 1633 |
src_y= s->edge_emu_buffer + 2 + 2*h->mb_linesize; |
| 1634 |
emu=1;
|
| 1635 |
} |
| 1636 |
|
| 1637 |
qpix_op[luma_xy](dest_y, src_y, h->mb_linesize); //FIXME try variable height perhaps?
|
| 1638 |
if(!square){
|
| 1639 |
qpix_op[luma_xy](dest_y + delta, src_y + delta, h->mb_linesize); |
| 1640 |
} |
| 1641 |
|
| 1642 |
if(ENABLE_GRAY && s->flags&CODEC_FLAG_GRAY) return; |
| 1643 |
|
| 1644 |
if(MB_FIELD){
|
| 1645 |
// chroma offset when predicting from a field of opposite parity
|
| 1646 |
my += 2 * ((s->mb_y & 1) - (pic->reference - 1)); |
| 1647 |
emu |= (my>>3) < 0 || (my>>3) + 8 >= (pic_height>>1); |
| 1648 |
} |
| 1649 |
src_cb= pic->data[1] + (mx>>3) + (my>>3)*h->mb_uvlinesize; |
| 1650 |
src_cr= pic->data[2] + (mx>>3) + (my>>3)*h->mb_uvlinesize; |
| 1651 |
|
| 1652 |
if(emu){
|
| 1653 |
ff_emulated_edge_mc(s->edge_emu_buffer, src_cb, h->mb_uvlinesize, 9, 9/*FIXME*/, (mx>>3), (my>>3), pic_width>>1, pic_height>>1); |
| 1654 |
src_cb= s->edge_emu_buffer; |
| 1655 |
} |
| 1656 |
chroma_op(dest_cb, src_cb, h->mb_uvlinesize, chroma_height, mx&7, my&7); |
| 1657 |
|
| 1658 |
if(emu){
|
| 1659 |
ff_emulated_edge_mc(s->edge_emu_buffer, src_cr, h->mb_uvlinesize, 9, 9/*FIXME*/, (mx>>3), (my>>3), pic_width>>1, pic_height>>1); |
| 1660 |
src_cr= s->edge_emu_buffer; |
| 1661 |
} |
| 1662 |
chroma_op(dest_cr, src_cr, h->mb_uvlinesize, chroma_height, mx&7, my&7); |
| 1663 |
} |
| 1664 |
|
| 1665 |
static inline void mc_part_std(H264Context *h, int n, int square, int chroma_height, int delta, |
| 1666 |
uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, |
| 1667 |
int x_offset, int y_offset, |
| 1668 |
qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put, |
| 1669 |
qpel_mc_func *qpix_avg, h264_chroma_mc_func chroma_avg, |
| 1670 |
int list0, int list1){ |
| 1671 |
MpegEncContext * const s = &h->s;
|
| 1672 |
qpel_mc_func *qpix_op= qpix_put; |
| 1673 |
h264_chroma_mc_func chroma_op= chroma_put; |
| 1674 |
|
| 1675 |
dest_y += 2*x_offset + 2*y_offset*h-> mb_linesize; |
| 1676 |
dest_cb += x_offset + y_offset*h->mb_uvlinesize; |
| 1677 |
dest_cr += x_offset + y_offset*h->mb_uvlinesize; |
| 1678 |
x_offset += 8*s->mb_x;
|
| 1679 |
y_offset += 8*(s->mb_y >> MB_FIELD);
|
| 1680 |
|
| 1681 |
if(list0){
|
| 1682 |
Picture *ref= &h->ref_list[0][ h->ref_cache[0][ scan8[n] ] ]; |
| 1683 |
mc_dir_part(h, ref, n, square, chroma_height, delta, 0,
|
| 1684 |
dest_y, dest_cb, dest_cr, x_offset, y_offset, |
| 1685 |
qpix_op, chroma_op); |
| 1686 |
|
| 1687 |
qpix_op= qpix_avg; |
| 1688 |
chroma_op= chroma_avg; |
| 1689 |
} |
| 1690 |
|
| 1691 |
if(list1){
|
| 1692 |
Picture *ref= &h->ref_list[1][ h->ref_cache[1][ scan8[n] ] ]; |
| 1693 |
mc_dir_part(h, ref, n, square, chroma_height, delta, 1,
|
| 1694 |
dest_y, dest_cb, dest_cr, x_offset, y_offset, |
| 1695 |
qpix_op, chroma_op); |
| 1696 |
} |
| 1697 |
} |
| 1698 |
|
| 1699 |
static inline void mc_part_weighted(H264Context *h, int n, int square, int chroma_height, int delta, |
| 1700 |
uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, |
| 1701 |
int x_offset, int y_offset, |
| 1702 |
qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put, |
| 1703 |
h264_weight_func luma_weight_op, h264_weight_func chroma_weight_op, |
| 1704 |
h264_biweight_func luma_weight_avg, h264_biweight_func chroma_weight_avg, |
| 1705 |
int list0, int list1){ |
| 1706 |
MpegEncContext * const s = &h->s;
|
| 1707 |
|
| 1708 |
dest_y += 2*x_offset + 2*y_offset*h-> mb_linesize; |
| 1709 |
dest_cb += x_offset + y_offset*h->mb_uvlinesize; |
| 1710 |
dest_cr += x_offset + y_offset*h->mb_uvlinesize; |
| 1711 |
x_offset += 8*s->mb_x;
|
| 1712 |
y_offset += 8*(s->mb_y >> MB_FIELD);
|
| 1713 |
|
| 1714 |
if(list0 && list1){
|
| 1715 |
/* don't optimize for luma-only case, since B-frames usually
|
| 1716 |
* use implicit weights => chroma too. */
|
| 1717 |
uint8_t *tmp_cb = s->obmc_scratchpad; |
| 1718 |
uint8_t *tmp_cr = s->obmc_scratchpad + 8;
|
| 1719 |
uint8_t *tmp_y = s->obmc_scratchpad + 8*h->mb_uvlinesize;
|
| 1720 |
int refn0 = h->ref_cache[0][ scan8[n] ]; |
| 1721 |
int refn1 = h->ref_cache[1][ scan8[n] ]; |
| 1722 |
|
| 1723 |
mc_dir_part(h, &h->ref_list[0][refn0], n, square, chroma_height, delta, 0, |
| 1724 |
dest_y, dest_cb, dest_cr, |
| 1725 |
x_offset, y_offset, qpix_put, chroma_put); |
| 1726 |
mc_dir_part(h, &h->ref_list[1][refn1], n, square, chroma_height, delta, 1, |
| 1727 |
tmp_y, tmp_cb, tmp_cr, |
| 1728 |
x_offset, y_offset, qpix_put, chroma_put); |
| 1729 |
|
| 1730 |
if(h->use_weight == 2){ |
| 1731 |
int weight0 = h->implicit_weight[refn0][refn1];
|
| 1732 |
int weight1 = 64 - weight0; |
| 1733 |
luma_weight_avg( dest_y, tmp_y, h-> mb_linesize, 5, weight0, weight1, 0); |
| 1734 |
chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize, 5, weight0, weight1, 0); |
| 1735 |
chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize, 5, weight0, weight1, 0); |
| 1736 |
}else{
|
| 1737 |
luma_weight_avg(dest_y, tmp_y, h->mb_linesize, h->luma_log2_weight_denom, |
| 1738 |
h->luma_weight[0][refn0], h->luma_weight[1][refn1], |
| 1739 |
h->luma_offset[0][refn0] + h->luma_offset[1][refn1]); |
| 1740 |
chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize, h->chroma_log2_weight_denom, |
| 1741 |
h->chroma_weight[0][refn0][0], h->chroma_weight[1][refn1][0], |
| 1742 |
h->chroma_offset[0][refn0][0] + h->chroma_offset[1][refn1][0]); |
| 1743 |
chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize, h->chroma_log2_weight_denom, |
| 1744 |
h->chroma_weight[0][refn0][1], h->chroma_weight[1][refn1][1], |
| 1745 |
h->chroma_offset[0][refn0][1] + h->chroma_offset[1][refn1][1]); |
| 1746 |
} |
| 1747 |
}else{
|
| 1748 |
int list = list1 ? 1 : 0; |
| 1749 |
int refn = h->ref_cache[list][ scan8[n] ];
|
| 1750 |
Picture *ref= &h->ref_list[list][refn]; |
| 1751 |
mc_dir_part(h, ref, n, square, chroma_height, delta, list, |
| 1752 |
dest_y, dest_cb, dest_cr, x_offset, y_offset, |
| 1753 |
qpix_put, chroma_put); |
| 1754 |
|
| 1755 |
luma_weight_op(dest_y, h->mb_linesize, h->luma_log2_weight_denom, |
| 1756 |
h->luma_weight[list][refn], h->luma_offset[list][refn]); |
| 1757 |
if(h->use_weight_chroma){
|
| 1758 |
chroma_weight_op(dest_cb, h->mb_uvlinesize, h->chroma_log2_weight_denom, |
| 1759 |
h->chroma_weight[list][refn][0], h->chroma_offset[list][refn][0]); |
| 1760 |
chroma_weight_op(dest_cr, h->mb_uvlinesize, h->chroma_log2_weight_denom, |
| 1761 |
h->chroma_weight[list][refn][1], h->chroma_offset[list][refn][1]); |
| 1762 |
} |
| 1763 |
} |
| 1764 |
} |
| 1765 |
|
| 1766 |
static inline void mc_part(H264Context *h, int n, int square, int chroma_height, int delta, |
| 1767 |
uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, |
| 1768 |
int x_offset, int y_offset, |
| 1769 |
qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put, |
| 1770 |
qpel_mc_func *qpix_avg, h264_chroma_mc_func chroma_avg, |
| 1771 |
h264_weight_func *weight_op, h264_biweight_func *weight_avg, |
| 1772 |
int list0, int list1){ |
| 1773 |
if((h->use_weight==2 && list0 && list1 |
| 1774 |
&& (h->implicit_weight[ h->ref_cache[0][scan8[n]] ][ h->ref_cache[1][scan8[n]] ] != 32)) |
| 1775 |
|| h->use_weight==1)
|
| 1776 |
mc_part_weighted(h, n, square, chroma_height, delta, dest_y, dest_cb, dest_cr, |
| 1777 |
x_offset, y_offset, qpix_put, chroma_put, |
| 1778 |
weight_op[0], weight_op[3], weight_avg[0], weight_avg[3], list0, list1); |
| 1779 |
else
|
| 1780 |
mc_part_std(h, n, square, chroma_height, delta, dest_y, dest_cb, dest_cr, |
| 1781 |
x_offset, y_offset, qpix_put, chroma_put, qpix_avg, chroma_avg, list0, list1); |
| 1782 |
} |
| 1783 |
|
| 1784 |
static inline void prefetch_motion(H264Context *h, int list){ |
| 1785 |
/* fetch pixels for estimated mv 4 macroblocks ahead
|
| 1786 |
* optimized for 64byte cache lines */
|
| 1787 |
MpegEncContext * const s = &h->s;
|
| 1788 |
const int refn = h->ref_cache[list][scan8[0]]; |
| 1789 |
if(refn >= 0){ |
| 1790 |
const int mx= (h->mv_cache[list][scan8[0]][0]>>2) + 16*s->mb_x + 8; |
| 1791 |
const int my= (h->mv_cache[list][scan8[0]][1]>>2) + 16*s->mb_y; |
| 1792 |
uint8_t **src= h->ref_list[list][refn].data; |
| 1793 |
int off= mx + (my + (s->mb_x&3)*4)*h->mb_linesize + 64; |
| 1794 |
s->dsp.prefetch(src[0]+off, s->linesize, 4); |
| 1795 |
off= (mx>>1) + ((my>>1) + (s->mb_x&7))*s->uvlinesize + 64; |
| 1796 |
s->dsp.prefetch(src[1]+off, src[2]-src[1], 2); |
| 1797 |
} |
| 1798 |
} |
| 1799 |
|
| 1800 |
static void hl_motion(H264Context *h, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, |
| 1801 |
qpel_mc_func (*qpix_put)[16], h264_chroma_mc_func (*chroma_put),
|
| 1802 |
qpel_mc_func (*qpix_avg)[16], h264_chroma_mc_func (*chroma_avg),
|
| 1803 |
h264_weight_func *weight_op, h264_biweight_func *weight_avg){
|
| 1804 |
MpegEncContext * const s = &h->s;
|
| 1805 |
const int mb_xy= s->mb_x + s->mb_y*s->mb_stride; |
| 1806 |
const int mb_type= s->current_picture.mb_type[mb_xy]; |
| 1807 |
|
| 1808 |
assert(IS_INTER(mb_type)); |
| 1809 |
|
| 1810 |
prefetch_motion(h, 0);
|
| 1811 |
|
| 1812 |
if(IS_16X16(mb_type)){
|
| 1813 |
mc_part(h, 0, 1, 8, 0, dest_y, dest_cb, dest_cr, 0, 0, |
| 1814 |
qpix_put[0], chroma_put[0], qpix_avg[0], chroma_avg[0], |
| 1815 |
&weight_op[0], &weight_avg[0], |
| 1816 |
IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1)); |
| 1817 |
}else if(IS_16X8(mb_type)){ |
| 1818 |
mc_part(h, 0, 0, 4, 8, dest_y, dest_cb, dest_cr, 0, 0, |
| 1819 |
qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0], |
| 1820 |
&weight_op[1], &weight_avg[1], |
| 1821 |
IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1)); |
| 1822 |
mc_part(h, 8, 0, 4, 8, dest_y, dest_cb, dest_cr, 0, 4, |
| 1823 |
qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0], |
| 1824 |
&weight_op[1], &weight_avg[1], |
| 1825 |
IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1)); |
| 1826 |
}else if(IS_8X16(mb_type)){ |
| 1827 |
mc_part(h, 0, 0, 8, 8*h->mb_linesize, dest_y, dest_cb, dest_cr, 0, 0, |
| 1828 |
qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1], |
| 1829 |
&weight_op[2], &weight_avg[2], |
| 1830 |
IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1)); |
| 1831 |
mc_part(h, 4, 0, 8, 8*h->mb_linesize, dest_y, dest_cb, dest_cr, 4, 0, |
| 1832 |
qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1], |
| 1833 |
&weight_op[2], &weight_avg[2], |
| 1834 |
IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1)); |
| 1835 |
}else{
|
| 1836 |
int i;
|
| 1837 |
|
| 1838 |
assert(IS_8X8(mb_type)); |
| 1839 |
|
| 1840 |
for(i=0; i<4; i++){ |
| 1841 |
const int sub_mb_type= h->sub_mb_type[i]; |
| 1842 |
const int n= 4*i; |
| 1843 |
int x_offset= (i&1)<<2; |
| 1844 |
int y_offset= (i&2)<<1; |
| 1845 |
|
| 1846 |
if(IS_SUB_8X8(sub_mb_type)){
|
| 1847 |
mc_part(h, n, 1, 4, 0, dest_y, dest_cb, dest_cr, x_offset, y_offset, |
| 1848 |
qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1], |
| 1849 |
&weight_op[3], &weight_avg[3], |
| 1850 |
IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1)); |
| 1851 |
}else if(IS_SUB_8X4(sub_mb_type)){ |
| 1852 |
mc_part(h, n , 0, 2, 4, dest_y, dest_cb, dest_cr, x_offset, y_offset, |
| 1853 |
qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1], |
| 1854 |
&weight_op[4], &weight_avg[4], |
| 1855 |
IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1)); |
| 1856 |
mc_part(h, n+2, 0, 2, 4, dest_y, dest_cb, dest_cr, x_offset, y_offset+2, |
| 1857 |
qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1], |
| 1858 |
&weight_op[4], &weight_avg[4], |
| 1859 |
IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1)); |
| 1860 |
}else if(IS_SUB_4X8(sub_mb_type)){ |
| 1861 |
mc_part(h, n , 0, 4, 4*h->mb_linesize, dest_y, dest_cb, dest_cr, x_offset, y_offset, |
| 1862 |
qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2], |
| 1863 |
&weight_op[5], &weight_avg[5], |
| 1864 |
IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1)); |
| 1865 |
mc_part(h, n+1, 0, 4, 4*h->mb_linesize, dest_y, dest_cb, dest_cr, x_offset+2, y_offset, |
| 1866 |
qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2], |
| 1867 |
&weight_op[5], &weight_avg[5], |
| 1868 |
IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1)); |
| 1869 |
}else{
|
| 1870 |
int j;
|
| 1871 |
assert(IS_SUB_4X4(sub_mb_type)); |
| 1872 |
for(j=0; j<4; j++){ |
| 1873 |
int sub_x_offset= x_offset + 2*(j&1); |
| 1874 |
int sub_y_offset= y_offset + (j&2); |
| 1875 |
mc_part(h, n+j, 1, 2, 0, dest_y, dest_cb, dest_cr, sub_x_offset, sub_y_offset, |
| 1876 |
qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2], |
| 1877 |
&weight_op[6], &weight_avg[6], |
| 1878 |
IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1)); |
| 1879 |
} |
| 1880 |
} |
| 1881 |
} |
| 1882 |
} |
| 1883 |
|
| 1884 |
prefetch_motion(h, 1);
|
| 1885 |
} |
| 1886 |
|
| 1887 |
static void decode_init_vlc(void){ |
| 1888 |
static int done = 0; |
| 1889 |
|
| 1890 |
if (!done) {
|
| 1891 |
int i;
|
| 1892 |
done = 1;
|
| 1893 |
|
| 1894 |
init_vlc(&chroma_dc_coeff_token_vlc, CHROMA_DC_COEFF_TOKEN_VLC_BITS, 4*5, |
| 1895 |
&chroma_dc_coeff_token_len [0], 1, 1, |
| 1896 |
&chroma_dc_coeff_token_bits[0], 1, 1, 1); |
| 1897 |
|
| 1898 |
for(i=0; i<4; i++){ |
| 1899 |
init_vlc(&coeff_token_vlc[i], COEFF_TOKEN_VLC_BITS, 4*17, |
| 1900 |
&coeff_token_len [i][0], 1, 1, |
| 1901 |
&coeff_token_bits[i][0], 1, 1, 1); |
| 1902 |
} |
| 1903 |
|
| 1904 |
for(i=0; i<3; i++){ |
| 1905 |
init_vlc(&chroma_dc_total_zeros_vlc[i], CHROMA_DC_TOTAL_ZEROS_VLC_BITS, 4,
|
| 1906 |
&chroma_dc_total_zeros_len [i][0], 1, 1, |
| 1907 |
&chroma_dc_total_zeros_bits[i][0], 1, 1, 1); |
| 1908 |
} |
| 1909 |
for(i=0; i<15; i++){ |
| 1910 |
init_vlc(&total_zeros_vlc[i], TOTAL_ZEROS_VLC_BITS, 16,
|
| 1911 |
&total_zeros_len [i][0], 1, 1, |
| 1912 |
&total_zeros_bits[i][0], 1, 1, 1); |
| 1913 |
} |
| 1914 |
|
| 1915 |
for(i=0; i<6; i++){ |
| 1916 |
init_vlc(&run_vlc[i], RUN_VLC_BITS, 7,
|
| 1917 |
&run_len [i][0], 1, 1, |
| 1918 |
&run_bits[i][0], 1, 1, 1); |
| 1919 |
} |
| 1920 |
init_vlc(&run7_vlc, RUN7_VLC_BITS, 16,
|
| 1921 |
&run_len [6][0], 1, 1, |
| 1922 |
&run_bits[6][0], 1, 1, 1); |
| 1923 |
} |
| 1924 |
} |
| 1925 |
|
| 1926 |
static void free_tables(H264Context *h){ |
| 1927 |
int i;
|
| 1928 |
H264Context *hx; |
| 1929 |
av_freep(&h->intra4x4_pred_mode); |
| 1930 |
av_freep(&h->chroma_pred_mode_table); |
| 1931 |
av_freep(&h->cbp_table); |
| 1932 |
av_freep(&h->mvd_table[0]);
|
| 1933 |
av_freep(&h->mvd_table[1]);
|
| 1934 |
av_freep(&h->direct_table); |
| 1935 |
av_freep(&h->non_zero_count); |
| 1936 |
av_freep(&h->slice_table_base); |
| 1937 |
h->slice_table= NULL;
|
| 1938 |
|
| 1939 |
av_freep(&h->mb2b_xy); |
| 1940 |
av_freep(&h->mb2b8_xy); |
| 1941 |
|
| 1942 |
for(i = 0; i < MAX_SPS_COUNT; i++) |
| 1943 |
av_freep(h->sps_buffers + i); |
| 1944 |
|
| 1945 |
for(i = 0; i < MAX_PPS_COUNT; i++) |
| 1946 |
av_freep(h->pps_buffers + i); |
| 1947 |
|
| 1948 |
for(i = 0; i < h->s.avctx->thread_count; i++) { |
| 1949 |
hx = h->thread_context[i]; |
| 1950 |
if(!hx) continue; |
| 1951 |
av_freep(&hx->top_borders[1]);
|
| 1952 |
av_freep(&hx->top_borders[0]);
|
| 1953 |
av_freep(&hx->s.obmc_scratchpad); |
| 1954 |
av_freep(&hx->s.allocated_edge_emu_buffer); |
| 1955 |
} |
| 1956 |
} |
| 1957 |
|
| 1958 |
static void init_dequant8_coeff_table(H264Context *h){ |
| 1959 |
int i,q,x;
|
| 1960 |
const int transpose = (h->s.dsp.h264_idct8_add != ff_h264_idct8_add_c); //FIXME ugly |
| 1961 |
h->dequant8_coeff[0] = h->dequant8_buffer[0]; |
| 1962 |
h->dequant8_coeff[1] = h->dequant8_buffer[1]; |
| 1963 |
|
| 1964 |
for(i=0; i<2; i++ ){ |
| 1965 |
if(i && !memcmp(h->pps.scaling_matrix8[0], h->pps.scaling_matrix8[1], 64*sizeof(uint8_t))){ |
| 1966 |
h->dequant8_coeff[1] = h->dequant8_buffer[0]; |
| 1967 |
break;
|
| 1968 |
} |
| 1969 |
|
| 1970 |
for(q=0; q<52; q++){ |
| 1971 |
int shift = ff_div6[q];
|
| 1972 |
int idx = ff_rem6[q];
|
| 1973 |
for(x=0; x<64; x++) |
| 1974 |
h->dequant8_coeff[i][q][transpose ? (x>>3)|((x&7)<<3) : x] = |
| 1975 |
((uint32_t)dequant8_coeff_init[idx][ dequant8_coeff_init_scan[((x>>1)&12) | (x&3)] ] * |
| 1976 |
h->pps.scaling_matrix8[i][x]) << shift; |
| 1977 |
} |
| 1978 |
} |
| 1979 |
} |
| 1980 |
|
| 1981 |
static void init_dequant4_coeff_table(H264Context *h){ |
| 1982 |
int i,j,q,x;
|
| 1983 |
const int transpose = (h->s.dsp.h264_idct_add != ff_h264_idct_add_c); //FIXME ugly |
| 1984 |
for(i=0; i<6; i++ ){ |
| 1985 |
h->dequant4_coeff[i] = h->dequant4_buffer[i]; |
| 1986 |
for(j=0; j<i; j++){ |
| 1987 |
if(!memcmp(h->pps.scaling_matrix4[j], h->pps.scaling_matrix4[i], 16*sizeof(uint8_t))){ |
| 1988 |
h->dequant4_coeff[i] = h->dequant4_buffer[j]; |
| 1989 |
break;
|
| 1990 |
} |
| 1991 |
} |
| 1992 |
if(j<i)
|
| 1993 |
continue;
|
| 1994 |
|
| 1995 |
for(q=0; q<52; q++){ |
| 1996 |
int shift = ff_div6[q] + 2; |
| 1997 |
int idx = ff_rem6[q];
|
| 1998 |
for(x=0; x<16; x++) |
| 1999 |
h->dequant4_coeff[i][q][transpose ? (x>>2)|((x<<2)&0xF) : x] = |
| 2000 |
((uint32_t)dequant4_coeff_init[idx][(x&1) + ((x>>2)&1)] * |
| 2001 |
h->pps.scaling_matrix4[i][x]) << shift; |
| 2002 |
} |
| 2003 |
} |
| 2004 |
} |
| 2005 |
|
| 2006 |
static void init_dequant_tables(H264Context *h){ |
| 2007 |
int i,x;
|
| 2008 |
init_dequant4_coeff_table(h); |
| 2009 |
if(h->pps.transform_8x8_mode)
|
| 2010 |
init_dequant8_coeff_table(h); |
| 2011 |
if(h->sps.transform_bypass){
|
| 2012 |
for(i=0; i<6; i++) |
| 2013 |
for(x=0; x<16; x++) |
| 2014 |
h->dequant4_coeff[i][0][x] = 1<<6; |
| 2015 |
if(h->pps.transform_8x8_mode)
|
| 2016 |
for(i=0; i<2; i++) |
| 2017 |
for(x=0; x<64; x++) |
| 2018 |
h->dequant8_coeff[i][0][x] = 1<<6; |
| 2019 |
} |
| 2020 |
} |
| 2021 |
|
| 2022 |
|
| 2023 |
/**
|
| 2024 |
* allocates tables.
|
| 2025 |
* needs width/height
|
| 2026 |
*/
|
| 2027 |
static int alloc_tables(H264Context *h){ |
| 2028 |
MpegEncContext * const s = &h->s;
|
| 2029 |
const int big_mb_num= s->mb_stride * (s->mb_height+1); |
| 2030 |
int x,y;
|
| 2031 |
|
| 2032 |
CHECKED_ALLOCZ(h->intra4x4_pred_mode, big_mb_num * 8 * sizeof(uint8_t)) |
| 2033 |
|
| 2034 |
CHECKED_ALLOCZ(h->non_zero_count , big_mb_num * 16 * sizeof(uint8_t)) |
| 2035 |
CHECKED_ALLOCZ(h->slice_table_base , (big_mb_num+s->mb_stride) * sizeof(uint8_t))
|
| 2036 |
CHECKED_ALLOCZ(h->cbp_table, big_mb_num * sizeof(uint16_t))
|
| 2037 |
|
| 2038 |
CHECKED_ALLOCZ(h->chroma_pred_mode_table, big_mb_num * sizeof(uint8_t))
|
| 2039 |
CHECKED_ALLOCZ(h->mvd_table[0], 32*big_mb_num * sizeof(uint16_t)); |
| 2040 |
CHECKED_ALLOCZ(h->mvd_table[1], 32*big_mb_num * sizeof(uint16_t)); |
| 2041 |
CHECKED_ALLOCZ(h->direct_table, 32*big_mb_num * sizeof(uint8_t)); |
| 2042 |
|
| 2043 |
memset(h->slice_table_base, -1, (big_mb_num+s->mb_stride) * sizeof(uint8_t)); |
| 2044 |
h->slice_table= h->slice_table_base + s->mb_stride*2 + 1; |
| 2045 |
|
| 2046 |
CHECKED_ALLOCZ(h->mb2b_xy , big_mb_num * sizeof(uint32_t));
|
| 2047 |
CHECKED_ALLOCZ(h->mb2b8_xy , big_mb_num * sizeof(uint32_t));
|
| 2048 |
for(y=0; y<s->mb_height; y++){ |
| 2049 |
for(x=0; x<s->mb_width; x++){ |
| 2050 |
const int mb_xy= x + y*s->mb_stride; |
| 2051 |
const int b_xy = 4*x + 4*y*h->b_stride; |
| 2052 |
const int b8_xy= 2*x + 2*y*h->b8_stride; |
| 2053 |
|
| 2054 |
h->mb2b_xy [mb_xy]= b_xy; |
| 2055 |
h->mb2b8_xy[mb_xy]= b8_xy; |
| 2056 |
} |
| 2057 |
} |
| 2058 |
|
| 2059 |
s->obmc_scratchpad = NULL;
|
| 2060 |
|
| 2061 |
if(!h->dequant4_coeff[0]) |
| 2062 |
init_dequant_tables(h); |
| 2063 |
|
| 2064 |
return 0; |
| 2065 |
fail:
|
| 2066 |
free_tables(h); |
| 2067 |
return -1; |
| 2068 |
} |
| 2069 |
|
| 2070 |
/**
|
| 2071 |
* Mimic alloc_tables(), but for every context thread.
|
| 2072 |
*/
|
| 2073 |
static void clone_tables(H264Context *dst, H264Context *src){ |
| 2074 |
dst->intra4x4_pred_mode = src->intra4x4_pred_mode; |
| 2075 |
dst->non_zero_count = src->non_zero_count; |
| 2076 |
dst->slice_table = src->slice_table; |
| 2077 |
dst->cbp_table = src->cbp_table; |
| 2078 |
dst->mb2b_xy = src->mb2b_xy; |
| 2079 |
dst->mb2b8_xy = src->mb2b8_xy; |
| 2080 |
dst->chroma_pred_mode_table = src->chroma_pred_mode_table; |
| 2081 |
dst->mvd_table[0] = src->mvd_table[0]; |
| 2082 |
dst->mvd_table[1] = src->mvd_table[1]; |
| 2083 |
dst->direct_table = src->direct_table; |
| 2084 |
|
| 2085 |
dst->s.obmc_scratchpad = NULL;
|
| 2086 |
ff_h264_pred_init(&dst->hpc, src->s.codec_id); |
| 2087 |
} |
| 2088 |
|
| 2089 |
/**
|
| 2090 |
* Init context
|
| 2091 |
* Allocate buffers which are not shared amongst multiple threads.
|
| 2092 |
*/
|
| 2093 |
static int context_init(H264Context *h){ |
| 2094 |
MpegEncContext * const s = &h->s;
|
| 2095 |
|
| 2096 |
CHECKED_ALLOCZ(h->top_borders[0], h->s.mb_width * (16+8+8) * sizeof(uint8_t)) |
| 2097 |
CHECKED_ALLOCZ(h->top_borders[1], h->s.mb_width * (16+8+8) * sizeof(uint8_t)) |
| 2098 |
|
| 2099 |
// edge emu needs blocksize + filter length - 1 (=17x17 for halfpel / 21x21 for h264)
|
| 2100 |
CHECKED_ALLOCZ(s->allocated_edge_emu_buffer, |
| 2101 |
(s->width+64)*2*21*2); //(width + edge + align)*interlaced*MBsize*tolerance |
| 2102 |
s->edge_emu_buffer= s->allocated_edge_emu_buffer + (s->width+64)*2*21; |
| 2103 |
return 0; |
| 2104 |
fail:
|
| 2105 |
return -1; // free_tables will clean up for us |
| 2106 |
} |
| 2107 |
|
| 2108 |
static void common_init(H264Context *h){ |
| 2109 |
MpegEncContext * const s = &h->s;
|
| 2110 |
|
| 2111 |
s->width = s->avctx->width; |
| 2112 |
s->height = s->avctx->height; |
| 2113 |
s->codec_id= s->avctx->codec->id; |
| 2114 |
|
| 2115 |
ff_h264_pred_init(&h->hpc, s->codec_id); |
| 2116 |
|
| 2117 |
h->dequant_coeff_pps= -1;
|
| 2118 |
s->unrestricted_mv=1;
|
| 2119 |
s->decode=1; //FIXME |
| 2120 |
|
| 2121 |
memset(h->pps.scaling_matrix4, 16, 6*16*sizeof(uint8_t)); |
| 2122 |
memset(h->pps.scaling_matrix8, 16, 2*64*sizeof(uint8_t)); |
| 2123 |
} |
| 2124 |
|
| 2125 |
static int decode_init(AVCodecContext *avctx){ |
| 2126 |
H264Context *h= avctx->priv_data; |
| 2127 |
MpegEncContext * const s = &h->s;
|
| 2128 |
|
| 2129 |
MPV_decode_defaults(s); |
| 2130 |
|
| 2131 |
s->avctx = avctx; |
| 2132 |
common_init(h); |
| 2133 |
|
| 2134 |
s->out_format = FMT_H264; |
| 2135 |
s->workaround_bugs= avctx->workaround_bugs; |
| 2136 |
|
| 2137 |
// set defaults
|
| 2138 |
// s->decode_mb= ff_h263_decode_mb;
|
| 2139 |
s->quarter_sample = 1;
|
| 2140 |
s->low_delay= 1;
|
| 2141 |
avctx->pix_fmt= PIX_FMT_YUV420P; |
| 2142 |
|
| 2143 |
decode_init_vlc(); |
| 2144 |
|
| 2145 |
if(avctx->extradata_size > 0 && avctx->extradata && |
| 2146 |
*(char *)avctx->extradata == 1){ |
| 2147 |
h->is_avc = 1;
|
| 2148 |
h->got_avcC = 0;
|
| 2149 |
} else {
|
| 2150 |
h->is_avc = 0;
|
| 2151 |
} |
| 2152 |
|
| 2153 |
h->thread_context[0] = h;
|
| 2154 |
return 0; |
| 2155 |
} |
| 2156 |
|
| 2157 |
static int frame_start(H264Context *h){ |
| 2158 |
MpegEncContext * const s = &h->s;
|
| 2159 |
int i;
|
| 2160 |
|
| 2161 |
if(MPV_frame_start(s, s->avctx) < 0) |
| 2162 |
return -1; |
| 2163 |
ff_er_frame_start(s); |
| 2164 |
/*
|
| 2165 |
* MPV_frame_start uses pict_type to derive key_frame.
|
| 2166 |
* This is incorrect for H.264; IDR markings must be used.
|
| 2167 |
* Zero here; IDR markings per slice in frame or fields are OR'd in later.
|
| 2168 |
* See decode_nal_units().
|
| 2169 |
*/
|
| 2170 |
s->current_picture_ptr->key_frame= 0;
|
| 2171 |
|
| 2172 |
assert(s->linesize && s->uvlinesize); |
| 2173 |
|
| 2174 |
for(i=0; i<16; i++){ |
| 2175 |
h->block_offset[i]= 4*((scan8[i] - scan8[0])&7) + 4*s->linesize*((scan8[i] - scan8[0])>>3); |
| 2176 |
h->block_offset[24+i]= 4*((scan8[i] - scan8[0])&7) + 8*s->linesize*((scan8[i] - scan8[0])>>3); |
| 2177 |
} |
| 2178 |
for(i=0; i<4; i++){ |
| 2179 |
h->block_offset[16+i]=
|
| 2180 |
h->block_offset[20+i]= 4*((scan8[i] - scan8[0])&7) + 4*s->uvlinesize*((scan8[i] - scan8[0])>>3); |
| 2181 |
h->block_offset[24+16+i]= |
| 2182 |
h->block_offset[24+20+i]= 4*((scan8[i] - scan8[0])&7) + 8*s->uvlinesize*((scan8[i] - scan8[0])>>3); |
| 2183 |
} |
| 2184 |
|
| 2185 |
/* can't be in alloc_tables because linesize isn't known there.
|
| 2186 |
* FIXME: redo bipred weight to not require extra buffer? */
|
| 2187 |
for(i = 0; i < s->avctx->thread_count; i++) |
| 2188 |
if(!h->thread_context[i]->s.obmc_scratchpad)
|
| 2189 |
h->thread_context[i]->s.obmc_scratchpad = av_malloc(16*2*s->linesize + 8*2*s->uvlinesize); |
| 2190 |
|
| 2191 |
/* some macroblocks will be accessed before they're available */
|
| 2192 |
if(FRAME_MBAFF || s->avctx->thread_count > 1) |
| 2193 |
memset(h->slice_table, -1, (s->mb_height*s->mb_stride-1) * sizeof(uint8_t)); |
| 2194 |
|
| 2195 |
// s->decode= (s->flags&CODEC_FLAG_PSNR) || !s->encoding || s->current_picture.reference /*|| h->contains_intra*/ || 1;
|
| 2196 |
return 0; |
| 2197 |
} |
| 2198 |
|
| 2199 |
static inline void backup_mb_border(H264Context *h, uint8_t *src_y, uint8_t *src_cb, uint8_t *src_cr, int linesize, int uvlinesize, int simple){ |
| 2200 |
MpegEncContext * const s = &h->s;
|
| 2201 |
int i;
|
| 2202 |
|
| 2203 |
src_y -= linesize; |
| 2204 |
src_cb -= uvlinesize; |
| 2205 |
src_cr -= uvlinesize; |
| 2206 |
|
| 2207 |
// There are two lines saved, the line above the the top macroblock of a pair,
|
| 2208 |
// and the line above the bottom macroblock
|
| 2209 |
h->left_border[0]= h->top_borders[0][s->mb_x][15]; |
| 2210 |
for(i=1; i<17; i++){ |
| 2211 |
h->left_border[i]= src_y[15+i* linesize];
|
| 2212 |
} |
| 2213 |
|
| 2214 |
*(uint64_t*)(h->top_borders[0][s->mb_x]+0)= *(uint64_t*)(src_y + 16*linesize); |
| 2215 |
*(uint64_t*)(h->top_borders[0][s->mb_x]+8)= *(uint64_t*)(src_y +8+16*linesize); |
| 2216 |
|
| 2217 |
if(simple || !ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
|
| 2218 |
h->left_border[17 ]= h->top_borders[0][s->mb_x][16+7]; |
| 2219 |
h->left_border[17+9]= h->top_borders[0][s->mb_x][24+7]; |
| 2220 |
for(i=1; i<9; i++){ |
| 2221 |
h->left_border[i+17 ]= src_cb[7+i*uvlinesize]; |
| 2222 |
h->left_border[i+17+9]= src_cr[7+i*uvlinesize]; |
| 2223 |
} |
| 2224 |
*(uint64_t*)(h->top_borders[0][s->mb_x]+16)= *(uint64_t*)(src_cb+8*uvlinesize); |
| 2225 |
*(uint64_t*)(h->top_borders[0][s->mb_x]+24)= *(uint64_t*)(src_cr+8*uvlinesize); |
| 2226 |
} |
| 2227 |
} |
| 2228 |
|
| 2229 |
static inline void xchg_mb_border(H264Context *h, uint8_t *src_y, uint8_t *src_cb, uint8_t *src_cr, int linesize, int uvlinesize, int xchg, int simple){ |
| 2230 |
MpegEncContext * const s = &h->s;
|
| 2231 |
int temp8, i;
|
| 2232 |
uint64_t temp64; |
| 2233 |
int deblock_left;
|
| 2234 |
int deblock_top;
|
| 2235 |
int mb_xy;
|
| 2236 |
|
| 2237 |
if(h->deblocking_filter == 2) { |
| 2238 |
mb_xy = s->mb_x + s->mb_y*s->mb_stride; |
| 2239 |
deblock_left = h->slice_table[mb_xy] == h->slice_table[mb_xy - 1];
|
| 2240 |
deblock_top = h->slice_table[mb_xy] == h->slice_table[h->top_mb_xy]; |
| 2241 |
} else {
|
| 2242 |
deblock_left = (s->mb_x > 0);
|
| 2243 |
deblock_top = (s->mb_y > 0);
|
| 2244 |
} |
| 2245 |
|
| 2246 |
src_y -= linesize + 1;
|
| 2247 |
src_cb -= uvlinesize + 1;
|
| 2248 |
src_cr -= uvlinesize + 1;
|
| 2249 |
|
| 2250 |
#define XCHG(a,b,t,xchg)\
|
| 2251 |
t= a;\ |
| 2252 |
if(xchg)\
|
| 2253 |
a= b;\ |
| 2254 |
b= t; |
| 2255 |
|
| 2256 |
if(deblock_left){
|
| 2257 |
for(i = !deblock_top; i<17; i++){ |
| 2258 |
XCHG(h->left_border[i ], src_y [i* linesize], temp8, xchg); |
| 2259 |
} |
| 2260 |
} |
| 2261 |
|
| 2262 |
if(deblock_top){
|
| 2263 |
XCHG(*(uint64_t*)(h->top_borders[0][s->mb_x]+0), *(uint64_t*)(src_y +1), temp64, xchg); |
| 2264 |
XCHG(*(uint64_t*)(h->top_borders[0][s->mb_x]+8), *(uint64_t*)(src_y +9), temp64, 1); |
| 2265 |
if(s->mb_x+1 < s->mb_width){ |
| 2266 |
XCHG(*(uint64_t*)(h->top_borders[0][s->mb_x+1]), *(uint64_t*)(src_y +17), temp64, 1); |
| 2267 |
} |
| 2268 |
} |
| 2269 |
|
| 2270 |
if(simple || !ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
|
| 2271 |
if(deblock_left){
|
| 2272 |
for(i = !deblock_top; i<9; i++){ |
| 2273 |
XCHG(h->left_border[i+17 ], src_cb[i*uvlinesize], temp8, xchg);
|
| 2274 |
XCHG(h->left_border[i+17+9], src_cr[i*uvlinesize], temp8, xchg); |
| 2275 |
} |
| 2276 |
} |
| 2277 |
if(deblock_top){
|
| 2278 |
XCHG(*(uint64_t*)(h->top_borders[0][s->mb_x]+16), *(uint64_t*)(src_cb+1), temp64, 1); |
| 2279 |
XCHG(*(uint64_t*)(h->top_borders[0][s->mb_x]+24), *(uint64_t*)(src_cr+1), temp64, 1); |
| 2280 |
} |
| 2281 |
} |
| 2282 |
} |
| 2283 |
|
| 2284 |
static inline void backup_pair_border(H264Context *h, uint8_t *src_y, uint8_t *src_cb, uint8_t *src_cr, int linesize, int uvlinesize){ |
| 2285 |
MpegEncContext * const s = &h->s;
|
| 2286 |
int i;
|
| 2287 |
|
| 2288 |
src_y -= 2 * linesize;
|
| 2289 |
src_cb -= 2 * uvlinesize;
|
| 2290 |
src_cr -= 2 * uvlinesize;
|
| 2291 |
|
| 2292 |
// There are two lines saved, the line above the the top macroblock of a pair,
|
| 2293 |
// and the line above the bottom macroblock
|
| 2294 |
h->left_border[0]= h->top_borders[0][s->mb_x][15]; |
| 2295 |
h->left_border[1]= h->top_borders[1][s->mb_x][15]; |
| 2296 |
for(i=2; i<34; i++){ |
| 2297 |
h->left_border[i]= src_y[15+i* linesize];
|
| 2298 |
} |
| 2299 |
|
| 2300 |
*(uint64_t*)(h->top_borders[0][s->mb_x]+0)= *(uint64_t*)(src_y + 32*linesize); |
| 2301 |
*(uint64_t*)(h->top_borders[0][s->mb_x]+8)= *(uint64_t*)(src_y +8+32*linesize); |
| 2302 |
*(uint64_t*)(h->top_borders[1][s->mb_x]+0)= *(uint64_t*)(src_y + 33*linesize); |
| 2303 |
*(uint64_t*)(h->top_borders[1][s->mb_x]+8)= *(uint64_t*)(src_y +8+33*linesize); |
| 2304 |
|
| 2305 |
if(!ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
|
| 2306 |
h->left_border[34 ]= h->top_borders[0][s->mb_x][16+7]; |
| 2307 |
h->left_border[34+ 1]= h->top_borders[1][s->mb_x][16+7]; |
| 2308 |
h->left_border[34+18 ]= h->top_borders[0][s->mb_x][24+7]; |
| 2309 |
h->left_border[34+18+1]= h->top_borders[1][s->mb_x][24+7]; |
| 2310 |
for(i=2; i<18; i++){ |
| 2311 |
h->left_border[i+34 ]= src_cb[7+i*uvlinesize]; |
| 2312 |
h->left_border[i+34+18]= src_cr[7+i*uvlinesize]; |
| 2313 |
} |
| 2314 |
*(uint64_t*)(h->top_borders[0][s->mb_x]+16)= *(uint64_t*)(src_cb+16*uvlinesize); |
| 2315 |
*(uint64_t*)(h->top_borders[0][s->mb_x]+24)= *(uint64_t*)(src_cr+16*uvlinesize); |
| 2316 |
*(uint64_t*)(h->top_borders[1][s->mb_x]+16)= *(uint64_t*)(src_cb+17*uvlinesize); |
| 2317 |
*(uint64_t*)(h->top_borders[1][s->mb_x]+24)= *(uint64_t*)(src_cr+17*uvlinesize); |
| 2318 |
} |
| 2319 |
} |
| 2320 |
|
| 2321 |
static inline void xchg_pair_border(H264Context *h, uint8_t *src_y, uint8_t *src_cb, uint8_t *src_cr, int linesize, int uvlinesize, int xchg){ |
| 2322 |
MpegEncContext * const s = &h->s;
|
| 2323 |
int temp8, i;
|
| 2324 |
uint64_t temp64; |
| 2325 |
int deblock_left = (s->mb_x > 0); |
| 2326 |
int deblock_top = (s->mb_y > 1); |
| 2327 |
|
| 2328 |
tprintf(s->avctx, "xchg_pair_border: src_y:%p src_cb:%p src_cr:%p ls:%d uvls:%d\n", src_y, src_cb, src_cr, linesize, uvlinesize);
|
| 2329 |
|
| 2330 |
src_y -= 2 * linesize + 1; |
| 2331 |
src_cb -= 2 * uvlinesize + 1; |
| 2332 |
src_cr -= 2 * uvlinesize + 1; |
| 2333 |
|
| 2334 |
#define XCHG(a,b,t,xchg)\
|
| 2335 |
t= a;\ |
| 2336 |
if(xchg)\
|
| 2337 |
a= b;\ |
| 2338 |
b= t; |
| 2339 |
|
| 2340 |
if(deblock_left){
|
| 2341 |
for(i = (!deblock_top)<<1; i<34; i++){ |
| 2342 |
XCHG(h->left_border[i ], src_y [i* linesize], temp8, xchg); |
| 2343 |
} |
| 2344 |
} |
| 2345 |
|
| 2346 |
if(deblock_top){
|
| 2347 |
XCHG(*(uint64_t*)(h->top_borders[0][s->mb_x]+0), *(uint64_t*)(src_y +1), temp64, xchg); |
| 2348 |
XCHG(*(uint64_t*)(h->top_borders[0][s->mb_x]+8), *(uint64_t*)(src_y +9), temp64, 1); |
| 2349 |
XCHG(*(uint64_t*)(h->top_borders[1][s->mb_x]+0), *(uint64_t*)(src_y +1 +linesize), temp64, xchg); |
| 2350 |
XCHG(*(uint64_t*)(h->top_borders[1][s->mb_x]+8), *(uint64_t*)(src_y +9 +linesize), temp64, 1); |
| 2351 |
if(s->mb_x+1 < s->mb_width){ |
| 2352 |
XCHG(*(uint64_t*)(h->top_borders[0][s->mb_x+1]), *(uint64_t*)(src_y +17), temp64, 1); |
| 2353 |
XCHG(*(uint64_t*)(h->top_borders[1][s->mb_x+1]), *(uint64_t*)(src_y +17 +linesize), temp64, 1); |
| 2354 |
} |
| 2355 |
} |
| 2356 |
|
| 2357 |
if(!ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
|
| 2358 |
if(deblock_left){
|
| 2359 |
for(i = (!deblock_top) << 1; i<18; i++){ |
| 2360 |
XCHG(h->left_border[i+34 ], src_cb[i*uvlinesize], temp8, xchg);
|
| 2361 |
XCHG(h->left_border[i+34+18], src_cr[i*uvlinesize], temp8, xchg); |
| 2362 |
} |
| 2363 |
} |
| 2364 |
if(deblock_top){
|
| 2365 |
XCHG(*(uint64_t*)(h->top_borders[0][s->mb_x]+16), *(uint64_t*)(src_cb+1), temp64, 1); |
| 2366 |
XCHG(*(uint64_t*)(h->top_borders[0][s->mb_x]+24), *(uint64_t*)(src_cr+1), temp64, 1); |
| 2367 |
XCHG(*(uint64_t*)(h->top_borders[1][s->mb_x]+16), *(uint64_t*)(src_cb+1 +uvlinesize), temp64, 1); |
| 2368 |
XCHG(*(uint64_t*)(h->top_borders[1][s->mb_x]+24), *(uint64_t*)(src_cr+1 +uvlinesize), temp64, 1); |
| 2369 |
} |
| 2370 |
} |
| 2371 |
} |
| 2372 |
|
| 2373 |
static av_always_inline void hl_decode_mb_internal(H264Context *h, int simple){ |
| 2374 |
MpegEncContext * const s = &h->s;
|
| 2375 |
const int mb_x= s->mb_x; |
| 2376 |
const int mb_y= s->mb_y; |
| 2377 |
const int mb_xy= mb_x + mb_y*s->mb_stride; |
| 2378 |
const int mb_type= s->current_picture.mb_type[mb_xy]; |
| 2379 |
uint8_t *dest_y, *dest_cb, *dest_cr; |
| 2380 |
int linesize, uvlinesize /*dct_offset*/; |
| 2381 |
int i;
|
| 2382 |
int *block_offset = &h->block_offset[0]; |
| 2383 |
const unsigned int bottom = mb_y & 1; |
| 2384 |
const int transform_bypass = (s->qscale == 0 && h->sps.transform_bypass), is_h264 = (simple || s->codec_id == CODEC_ID_H264); |
| 2385 |
void (*idct_add)(uint8_t *dst, DCTELEM *block, int stride); |
| 2386 |
void (*idct_dc_add)(uint8_t *dst, DCTELEM *block, int stride); |
| 2387 |
|
| 2388 |
dest_y = s->current_picture.data[0] + (mb_y * 16* s->linesize ) + mb_x * 16; |
| 2389 |
dest_cb = s->current_picture.data[1] + (mb_y * 8 * s->uvlinesize) + mb_x * 8; |
| 2390 |
dest_cr = s->current_picture.data[2] + (mb_y * 8 * s->uvlinesize) + mb_x * 8; |
| 2391 |
|
| 2392 |
s->dsp.prefetch(dest_y + (s->mb_x&3)*4*s->linesize + 64, s->linesize, 4); |
| 2393 |
s->dsp.prefetch(dest_cb + (s->mb_x&7)*s->uvlinesize + 64, dest_cr - dest_cb, 2); |
| 2394 |
|
| 2395 |
if (!simple && MB_FIELD) {
|
| 2396 |
linesize = h->mb_linesize = s->linesize * 2;
|
| 2397 |
uvlinesize = h->mb_uvlinesize = s->uvlinesize * 2;
|
| 2398 |
block_offset = &h->block_offset[24];
|
| 2399 |
if(mb_y&1){ //FIXME move out of this func? |
| 2400 |
dest_y -= s->linesize*15;
|
| 2401 |
dest_cb-= s->uvlinesize*7;
|
| 2402 |
dest_cr-= s->uvlinesize*7;
|
| 2403 |
} |
| 2404 |
if(FRAME_MBAFF) {
|
| 2405 |
int list;
|
| 2406 |
for(list=0; list<h->list_count; list++){ |
| 2407 |
if(!USES_LIST(mb_type, list))
|
| 2408 |
continue;
|
| 2409 |
if(IS_16X16(mb_type)){
|
| 2410 |
int8_t *ref = &h->ref_cache[list][scan8[0]];
|
| 2411 |
fill_rectangle(ref, 4, 4, 8, 16+*ref^(s->mb_y&1), 1); |
| 2412 |
}else{
|
| 2413 |
for(i=0; i<16; i+=4){ |
| 2414 |
//FIXME can refs be smaller than 8x8 when !direct_8x8_inference ?
|
| 2415 |
int ref = h->ref_cache[list][scan8[i]];
|
| 2416 |
if(ref >= 0) |
| 2417 |
fill_rectangle(&h->ref_cache[list][scan8[i]], 2, 2, 8, 16+ref^(s->mb_y&1), 1); |
| 2418 |
} |
| 2419 |
} |
| 2420 |
} |
| 2421 |
} |
| 2422 |
} else {
|
| 2423 |
linesize = h->mb_linesize = s->linesize; |
| 2424 |
uvlinesize = h->mb_uvlinesize = s->uvlinesize; |
| 2425 |
// dct_offset = s->linesize * 16;
|
| 2426 |
} |
| 2427 |
|
| 2428 |
if(transform_bypass){
|
| 2429 |
idct_dc_add = |
| 2430 |
idct_add = IS_8x8DCT(mb_type) ? s->dsp.add_pixels8 : s->dsp.add_pixels4; |
| 2431 |
}else if(IS_8x8DCT(mb_type)){ |
| 2432 |
idct_dc_add = s->dsp.h264_idct8_dc_add; |
| 2433 |
idct_add = s->dsp.h264_idct8_add; |
| 2434 |
}else{
|
| 2435 |
idct_dc_add = s->dsp.h264_idct_dc_add; |
| 2436 |
idct_add = s->dsp.h264_idct_add; |
| 2437 |
} |
| 2438 |
|
| 2439 |
if(!simple && FRAME_MBAFF && h->deblocking_filter && IS_INTRA(mb_type)
|
| 2440 |
&& (!bottom || !IS_INTRA(s->current_picture.mb_type[mb_xy-s->mb_stride]))){
|
| 2441 |
int mbt_y = mb_y&~1; |
| 2442 |
uint8_t *top_y = s->current_picture.data[0] + (mbt_y * 16* s->linesize ) + mb_x * 16; |
| 2443 |
uint8_t *top_cb = s->current_picture.data[1] + (mbt_y * 8 * s->uvlinesize) + mb_x * 8; |
| 2444 |
uint8_t *top_cr = s->current_picture.data[2] + (mbt_y * 8 * s->uvlinesize) + mb_x * 8; |
| 2445 |
xchg_pair_border(h, top_y, top_cb, top_cr, s->linesize, s->uvlinesize, 1);
|
| 2446 |
} |
| 2447 |
|
| 2448 |
if (!simple && IS_INTRA_PCM(mb_type)) {
|
| 2449 |
unsigned int x, y; |
| 2450 |
|
| 2451 |
// The pixels are stored in h->mb array in the same order as levels,
|
| 2452 |
// copy them in output in the correct order.
|
| 2453 |
for(i=0; i<16; i++) { |
| 2454 |
for (y=0; y<4; y++) { |
| 2455 |
for (x=0; x<4; x++) { |
| 2456 |
*(dest_y + block_offset[i] + y*linesize + x) = h->mb[i*16+y*4+x]; |
| 2457 |
} |
| 2458 |
} |
| 2459 |
} |
| 2460 |
for(i=16; i<16+4; i++) { |
| 2461 |
for (y=0; y<4; y++) { |
| 2462 |
for (x=0; x<4; x++) { |
| 2463 |
*(dest_cb + block_offset[i] + y*uvlinesize + x) = h->mb[i*16+y*4+x]; |
| 2464 |
} |
| 2465 |
} |
| 2466 |
} |
| 2467 |
for(i=20; i<20+4; i++) { |
| 2468 |
for (y=0; y<4; y++) { |
| 2469 |
for (x=0; x<4; x++) { |
| 2470 |
*(dest_cr + block_offset[i] + y*uvlinesize + x) = h->mb[i*16+y*4+x]; |
| 2471 |
} |
| 2472 |
} |
| 2473 |
} |
| 2474 |
} else {
|
| 2475 |
if(IS_INTRA(mb_type)){
|
| 2476 |
if(h->deblocking_filter && (simple || !FRAME_MBAFF))
|
| 2477 |
xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 1, simple);
|
| 2478 |
|
| 2479 |
if(simple || !ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
|
| 2480 |
h->hpc.pred8x8[ h->chroma_pred_mode ](dest_cb, uvlinesize); |
| 2481 |
h->hpc.pred8x8[ h->chroma_pred_mode ](dest_cr, uvlinesize); |
| 2482 |
} |
| 2483 |
|
| 2484 |
if(IS_INTRA4x4(mb_type)){
|
| 2485 |
if(simple || !s->encoding){
|
| 2486 |
if(IS_8x8DCT(mb_type)){
|
| 2487 |
for(i=0; i<16; i+=4){ |
| 2488 |
uint8_t * const ptr= dest_y + block_offset[i];
|
| 2489 |
const int dir= h->intra4x4_pred_mode_cache[ scan8[i] ]; |
| 2490 |
const int nnz = h->non_zero_count_cache[ scan8[i] ]; |
| 2491 |
h->hpc.pred8x8l[ dir ](ptr, (h->topleft_samples_available<<i)&0x8000,
|
| 2492 |
(h->topright_samples_available<<i)&0x4000, linesize);
|
| 2493 |
if(nnz){
|
| 2494 |
if(nnz == 1 && h->mb[i*16]) |
| 2495 |
idct_dc_add(ptr, h->mb + i*16, linesize);
|
| 2496 |
else
|
| 2497 |
idct_add(ptr, h->mb + i*16, linesize);
|
| 2498 |
} |
| 2499 |
} |
| 2500 |
}else
|
| 2501 |
for(i=0; i<16; i++){ |
| 2502 |
uint8_t * const ptr= dest_y + block_offset[i];
|
| 2503 |
uint8_t *topright; |
| 2504 |
const int dir= h->intra4x4_pred_mode_cache[ scan8[i] ]; |
| 2505 |
int nnz, tr;
|
| 2506 |
|
| 2507 |
if(dir == DIAG_DOWN_LEFT_PRED || dir == VERT_LEFT_PRED){
|
| 2508 |
const int topright_avail= (h->topright_samples_available<<i)&0x8000; |
| 2509 |
assert(mb_y || linesize <= block_offset[i]); |
| 2510 |
if(!topright_avail){
|
| 2511 |
tr= ptr[3 - linesize]*0x01010101; |
| 2512 |
topright= (uint8_t*) &tr; |
| 2513 |
}else
|
| 2514 |
topright= ptr + 4 - linesize;
|
| 2515 |
}else
|
| 2516 |
topright= NULL;
|
| 2517 |
|
| 2518 |
h->hpc.pred4x4[ dir ](ptr, topright, linesize); |
| 2519 |
nnz = h->non_zero_count_cache[ scan8[i] ]; |
| 2520 |
if(nnz){
|
| 2521 |
if(is_h264){
|
| 2522 |
if(nnz == 1 && h->mb[i*16]) |
| 2523 |
idct_dc_add(ptr, h->mb + i*16, linesize);
|
| 2524 |
else
|
| 2525 |
idct_add(ptr, h->mb + i*16, linesize);
|
| 2526 |
}else
|
| 2527 |
svq3_add_idct_c(ptr, h->mb + i*16, linesize, s->qscale, 0); |
| 2528 |
} |
| 2529 |
} |
| 2530 |
} |
| 2531 |
}else{
|
| 2532 |
h->hpc.pred16x16[ h->intra16x16_pred_mode ](dest_y , linesize); |
| 2533 |
if(is_h264){
|
| 2534 |
if(!transform_bypass)
|
| 2535 |
h264_luma_dc_dequant_idct_c(h->mb, s->qscale, h->dequant4_coeff[0][s->qscale][0]); |
| 2536 |
}else
|
| 2537 |
svq3_luma_dc_dequant_idct_c(h->mb, s->qscale); |
| 2538 |
} |
| 2539 |
if(h->deblocking_filter && (simple || !FRAME_MBAFF))
|
| 2540 |
xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 0, simple);
|
| 2541 |
}else if(is_h264){ |
| 2542 |
hl_motion(h, dest_y, dest_cb, dest_cr, |
| 2543 |
s->me.qpel_put, s->dsp.put_h264_chroma_pixels_tab, |
| 2544 |
s->me.qpel_avg, s->dsp.avg_h264_chroma_pixels_tab, |
| 2545 |
s->dsp.weight_h264_pixels_tab, s->dsp.biweight_h264_pixels_tab); |
| 2546 |
} |
| 2547 |
|
| 2548 |
|
| 2549 |
if(!IS_INTRA4x4(mb_type)){
|
| 2550 |
if(is_h264){
|
| 2551 |
if(IS_INTRA16x16(mb_type)){
|
| 2552 |
for(i=0; i<16; i++){ |
| 2553 |
if(h->non_zero_count_cache[ scan8[i] ])
|
| 2554 |
idct_add(dest_y + block_offset[i], h->mb + i*16, linesize);
|
| 2555 |
else if(h->mb[i*16]) |
| 2556 |
idct_dc_add(dest_y + block_offset[i], h->mb + i*16, linesize);
|
| 2557 |
} |
| 2558 |
}else{
|
| 2559 |
const int di = IS_8x8DCT(mb_type) ? 4 : 1; |
| 2560 |
for(i=0; i<16; i+=di){ |
| 2561 |
int nnz = h->non_zero_count_cache[ scan8[i] ];
|
| 2562 |
if(nnz){
|
| 2563 |
if(nnz==1 && h->mb[i*16]) |
| 2564 |
idct_dc_add(dest_y + block_offset[i], h->mb + i*16, linesize);
|
| 2565 |
else
|
| 2566 |
idct_add(dest_y + block_offset[i], h->mb + i*16, linesize);
|
| 2567 |
} |
| 2568 |
} |
| 2569 |
} |
| 2570 |
}else{
|
| 2571 |
for(i=0; i<16; i++){ |
| 2572 |
if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){ //FIXME benchmark weird rule, & below |
| 2573 |
uint8_t * const ptr= dest_y + block_offset[i];
|
| 2574 |
svq3_add_idct_c(ptr, h->mb + i*16, linesize, s->qscale, IS_INTRA(mb_type) ? 1 : 0); |
| 2575 |
} |
| 2576 |
} |
| 2577 |
} |
| 2578 |
} |
| 2579 |
|
| 2580 |
if(simple || !ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
|
| 2581 |
uint8_t *dest[2] = {dest_cb, dest_cr};
|
| 2582 |
if(transform_bypass){
|
| 2583 |
idct_add = idct_dc_add = s->dsp.add_pixels4; |
| 2584 |
}else{
|
| 2585 |
idct_add = s->dsp.h264_idct_add; |
| 2586 |
idct_dc_add = s->dsp.h264_idct_dc_add; |
| 2587 |
chroma_dc_dequant_idct_c(h->mb + 16*16, h->chroma_qp[0], h->dequant4_coeff[IS_INTRA(mb_type) ? 1:4][h->chroma_qp[0]][0]); |
| 2588 |
chroma_dc_dequant_idct_c(h->mb + 16*16+4*16, h->chroma_qp[1], h->dequant4_coeff[IS_INTRA(mb_type) ? 2:5][h->chroma_qp[1]][0]); |
| 2589 |
} |
| 2590 |
if(is_h264){
|
| 2591 |
for(i=16; i<16+8; i++){ |
| 2592 |
if(h->non_zero_count_cache[ scan8[i] ])
|
| 2593 |
idct_add(dest[(i&4)>>2] + block_offset[i], h->mb + i*16, uvlinesize); |
| 2594 |
else if(h->mb[i*16]) |
| 2595 |
idct_dc_add(dest[(i&4)>>2] + block_offset[i], h->mb + i*16, uvlinesize); |
| 2596 |
} |
| 2597 |
}else{
|
| 2598 |
for(i=16; i<16+8; i++){ |
| 2599 |
if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){ |
| 2600 |
uint8_t * const ptr= dest[(i&4)>>2] + block_offset[i]; |
| 2601 |
svq3_add_idct_c(ptr, h->mb + i*16, uvlinesize, chroma_qp[s->qscale + 12] - 12, 2); |
| 2602 |
} |
| 2603 |
} |
| 2604 |
} |
| 2605 |
} |
| 2606 |
} |
| 2607 |
if(h->deblocking_filter) {
|
| 2608 |
if (!simple && FRAME_MBAFF) {
|
| 2609 |
//FIXME try deblocking one mb at a time?
|
| 2610 |
// the reduction in load/storing mvs and such might outweigh the extra backup/xchg_border
|
| 2611 |
const int mb_y = s->mb_y - 1; |
| 2612 |
uint8_t *pair_dest_y, *pair_dest_cb, *pair_dest_cr; |
| 2613 |
const int mb_xy= mb_x + mb_y*s->mb_stride; |
| 2614 |
const int mb_type_top = s->current_picture.mb_type[mb_xy]; |
| 2615 |
const int mb_type_bottom= s->current_picture.mb_type[mb_xy+s->mb_stride]; |
| 2616 |
if (!bottom) return; |
| 2617 |
pair_dest_y = s->current_picture.data[0] + (mb_y * 16* s->linesize ) + mb_x * 16; |
| 2618 |
pair_dest_cb = s->current_picture.data[1] + (mb_y * 8 * s->uvlinesize) + mb_x * 8; |
| 2619 |
pair_dest_cr = s->current_picture.data[2] + (mb_y * 8 * s->uvlinesize) + mb_x * 8; |
| 2620 |
|
| 2621 |
if(IS_INTRA(mb_type_top | mb_type_bottom))
|
| 2622 |
xchg_pair_border(h, pair_dest_y, pair_dest_cb, pair_dest_cr, s->linesize, s->uvlinesize, 0);
|
| 2623 |
|
| 2624 |
backup_pair_border(h, pair_dest_y, pair_dest_cb, pair_dest_cr, s->linesize, s->uvlinesize); |
| 2625 |
// deblock a pair
|
| 2626 |
// top
|
| 2627 |
s->mb_y--; |
| 2628 |
tprintf(h->s.avctx, "call mbaff filter_mb mb_x:%d mb_y:%d pair_dest_y = %p, dest_y = %p\n", mb_x, mb_y, pair_dest_y, dest_y);
|
| 2629 |
fill_caches(h, mb_type_top, 1); //FIXME don't fill stuff which isn't used by filter_mb |
| 2630 |
h->chroma_qp[0] = get_chroma_qp(h, 0, s->current_picture.qscale_table[mb_xy]); |
| 2631 |
h->chroma_qp[1] = get_chroma_qp(h, 1, s->current_picture.qscale_table[mb_xy]); |
| 2632 |
filter_mb(h, mb_x, mb_y, pair_dest_y, pair_dest_cb, pair_dest_cr, linesize, uvlinesize); |
| 2633 |
// bottom
|
| 2634 |
s->mb_y++; |
| 2635 |
tprintf(h->s.avctx, "call mbaff filter_mb\n");
|
| 2636 |
fill_caches(h, mb_type_bottom, 1); //FIXME don't fill stuff which isn't used by filter_mb |
| 2637 |
h->chroma_qp[0] = get_chroma_qp(h, 0, s->current_picture.qscale_table[mb_xy+s->mb_stride]); |
| 2638 |
h->chroma_qp[1] = get_chroma_qp(h, 1, s->current_picture.qscale_table[mb_xy+s->mb_stride]); |
| 2639 |
filter_mb(h, mb_x, mb_y+1, dest_y, dest_cb, dest_cr, linesize, uvlinesize);
|
| 2640 |
} else {
|
| 2641 |
tprintf(h->s.avctx, "call filter_mb\n");
|
| 2642 |
backup_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, simple); |
| 2643 |
fill_caches(h, mb_type, 1); //FIXME don't fill stuff which isn't used by filter_mb |
| 2644 |
filter_mb_fast(h, mb_x, mb_y, dest_y, dest_cb, dest_cr, linesize, uvlinesize); |
| 2645 |
} |
| 2646 |
} |
| 2647 |
} |
| 2648 |
|
| 2649 |
/**
|
| 2650 |
* Process a macroblock; this case avoids checks for expensive uncommon cases.
|
| 2651 |
*/
|
| 2652 |
static void hl_decode_mb_simple(H264Context *h){ |
| 2653 |
hl_decode_mb_internal(h, 1);
|
| 2654 |
} |
| 2655 |
|
| 2656 |
/**
|
| 2657 |
* Process a macroblock; this handles edge cases, such as interlacing.
|
| 2658 |
*/
|
| 2659 |
static void av_noinline hl_decode_mb_complex(H264Context *h){ |
| 2660 |
hl_decode_mb_internal(h, 0);
|
| 2661 |
} |
| 2662 |
|
| 2663 |
static void hl_decode_mb(H264Context *h){ |
| 2664 |
MpegEncContext * const s = &h->s;
|
| 2665 |
const int mb_x= s->mb_x; |
| 2666 |
const int mb_y= s->mb_y; |
| 2667 |
const int mb_xy= mb_x + mb_y*s->mb_stride; |
| 2668 |
const int mb_type= s->current_picture.mb_type[mb_xy]; |
| 2669 |
int is_complex = FRAME_MBAFF || MB_FIELD || IS_INTRA_PCM(mb_type) || s->codec_id != CODEC_ID_H264 || (ENABLE_GRAY && (s->flags&CODEC_FLAG_GRAY)) || s->encoding;
|
| 2670 |
|
| 2671 |
if(!s->decode)
|
| 2672 |
return;
|
| 2673 |
|
| 2674 |
if (is_complex)
|
| 2675 |
hl_decode_mb_complex(h); |
| 2676 |
else hl_decode_mb_simple(h);
|
| 2677 |
} |
| 2678 |
|
| 2679 |
static void pic_as_field(Picture *pic, const int parity){ |
| 2680 |
int i;
|
| 2681 |
for (i = 0; i < 4; ++i) { |
| 2682 |
if (parity == PICT_BOTTOM_FIELD)
|
| 2683 |
pic->data[i] += pic->linesize[i]; |
| 2684 |
pic->reference = parity; |
| 2685 |
pic->linesize[i] *= 2;
|
| 2686 |
} |
| 2687 |
} |
| 2688 |
|
| 2689 |
static int split_field_copy(Picture *dest, Picture *src, |
| 2690 |
int parity, int id_add){ |
| 2691 |
int match = !!(src->reference & parity);
|
| 2692 |
|
| 2693 |
if (match) {
|
| 2694 |
*dest = *src; |
| 2695 |
pic_as_field(dest, parity); |
| 2696 |
dest->pic_id *= 2;
|
| 2697 |
dest->pic_id += id_add; |
| 2698 |
} |
| 2699 |
|
| 2700 |
return match;
|
| 2701 |
} |
| 2702 |
|
| 2703 |
/**
|
| 2704 |
* Split one reference list into field parts, interleaving by parity
|
| 2705 |
* as per H.264 spec section 8.2.4.2.5. Output fields have their data pointers
|
| 2706 |
* set to look at the actual start of data for that field.
|
| 2707 |
*
|
| 2708 |
* @param dest output list
|
| 2709 |
* @param dest_len maximum number of fields to put in dest
|
| 2710 |
* @param src the source reference list containing fields and/or field pairs
|
| 2711 |
* (aka short_ref/long_ref, or
|
| 2712 |
* refFrameListXShortTerm/refFrameListLongTerm in spec-speak)
|
| 2713 |
* @param src_len number of Picture's in source (pairs and unmatched fields)
|
| 2714 |
* @param parity the parity of the picture being decoded/needing
|
| 2715 |
* these ref pics (PICT_{TOP,BOTTOM}_FIELD)
|
| 2716 |
* @return number of fields placed in dest
|
| 2717 |
*/
|
| 2718 |
static int split_field_half_ref_list(Picture *dest, int dest_len, |
| 2719 |
Picture *src, int src_len, int parity){ |
| 2720 |
int same_parity = 1; |
| 2721 |
int same_i = 0; |
| 2722 |
int opp_i = 0; |
| 2723 |
int out_i;
|
| 2724 |
int field_output;
|
| 2725 |
|
| 2726 |
for (out_i = 0; out_i < dest_len; out_i += field_output) { |
| 2727 |
if (same_parity && same_i < src_len) {
|
| 2728 |
field_output = split_field_copy(dest + out_i, src + same_i, |
| 2729 |
parity, 1);
|
| 2730 |
same_parity = !field_output; |
| 2731 |
same_i++; |
| 2732 |
|
| 2733 |
} else if (opp_i < src_len) { |
| 2734 |
field_output = split_field_copy(dest + out_i, src + opp_i, |
| 2735 |
PICT_FRAME - parity, 0);
|
| 2736 |
same_parity = field_output; |
| 2737 |
opp_i++; |
| 2738 |
|
| 2739 |
} else {
|
| 2740 |
break;
|
| 2741 |
} |
| 2742 |
} |
| 2743 |
|
| 2744 |
return out_i;
|
| 2745 |
} |
| 2746 |
|
| 2747 |
/**
|
| 2748 |
* Split the reference frame list into a reference field list.
|
| 2749 |
* This implements H.264 spec 8.2.4.2.5 for a combined input list.
|
| 2750 |
* The input list contains both reference field pairs and
|
| 2751 |
* unmatched reference fields; it is ordered as spec describes
|
| 2752 |
* RefPicListX for frames in 8.2.4.2.1 and 8.2.4.2.3, except that
|
| 2753 |
* unmatched field pairs are also present. Conceptually this is equivalent
|
| 2754 |
* to concatenation of refFrameListXShortTerm with refFrameListLongTerm.
|
| 2755 |
*
|
| 2756 |
* @param dest output reference list where ordered fields are to be placed
|
| 2757 |
* @param dest_len max number of fields to place at dest
|
| 2758 |
* @param src source reference list, as described above
|
| 2759 |
* @param src_len number of pictures (pairs and unmatched fields) in src
|
| 2760 |
* @param parity parity of field being currently decoded
|
| 2761 |
* (one of PICT_{TOP,BOTTOM}_FIELD)
|
| 2762 |
* @param long_i index into src array that holds first long reference picture,
|
| 2763 |
* or src_len if no long refs present.
|
| 2764 |
*/
|
| 2765 |
static int split_field_ref_list(Picture *dest, int dest_len, |
| 2766 |
Picture *src, int src_len,
|
| 2767 |
int parity, int long_i){ |
| 2768 |
|
| 2769 |
int i = split_field_half_ref_list(dest, dest_len, src, long_i, parity);
|
| 2770 |
dest += i; |
| 2771 |
dest_len -= i; |
| 2772 |
|
| 2773 |
i += split_field_half_ref_list(dest, dest_len, src + long_i, |
| 2774 |
src_len - long_i, parity); |
| 2775 |
return i;
|
| 2776 |
} |
| 2777 |
|
| 2778 |
/**
|
| 2779 |
* fills the default_ref_list.
|
| 2780 |
*/
|
| 2781 |
static int fill_default_ref_list(H264Context *h){ |
| 2782 |
MpegEncContext * const s = &h->s;
|
| 2783 |
int i;
|
| 2784 |
int smallest_poc_greater_than_current = -1; |
| 2785 |
int structure_sel;
|
| 2786 |
Picture sorted_short_ref[32];
|
| 2787 |
Picture field_entry_list[2][32]; |
| 2788 |
Picture *frame_list[2];
|
| 2789 |
|
| 2790 |
if (FIELD_PICTURE) {
|
| 2791 |
structure_sel = PICT_FRAME; |
| 2792 |
frame_list[0] = field_entry_list[0]; |
| 2793 |
frame_list[1] = field_entry_list[1]; |
| 2794 |
} else {
|
| 2795 |
structure_sel = 0;
|
| 2796 |
frame_list[0] = h->default_ref_list[0]; |
| 2797 |
frame_list[1] = h->default_ref_list[1]; |
| 2798 |
} |
| 2799 |
|
| 2800 |
if(h->slice_type==B_TYPE){
|
| 2801 |
int list;
|
| 2802 |
int len[2]; |
| 2803 |
int short_len[2]; |
| 2804 |
int out_i;
|
| 2805 |
int limit= INT_MIN;
|
| 2806 |
|
| 2807 |
/* sort frame according to poc in B slice */
|
| 2808 |
for(out_i=0; out_i<h->short_ref_count; out_i++){ |
| 2809 |
int best_i=INT_MIN;
|
| 2810 |
int best_poc=INT_MAX;
|
| 2811 |
|
| 2812 |
for(i=0; i<h->short_ref_count; i++){ |
| 2813 |
const int poc= h->short_ref[i]->poc; |
| 2814 |
if(poc > limit && poc < best_poc){
|
| 2815 |
best_poc= poc; |
| 2816 |
best_i= i; |
| 2817 |
} |
| 2818 |
} |
| 2819 |
|
| 2820 |
assert(best_i != INT_MIN); |
| 2821 |
|
| 2822 |
limit= best_poc; |
| 2823 |
sorted_short_ref[out_i]= *h->short_ref[best_i]; |
| 2824 |
tprintf(h->s.avctx, "sorted poc: %d->%d poc:%d fn:%d\n", best_i, out_i, sorted_short_ref[out_i].poc, sorted_short_ref[out_i].frame_num);
|
| 2825 |
if (-1 == smallest_poc_greater_than_current) { |
| 2826 |
if (h->short_ref[best_i]->poc >= s->current_picture_ptr->poc) {
|
| 2827 |
smallest_poc_greater_than_current = out_i; |
| 2828 |
} |
| 2829 |
} |
| 2830 |
} |
| 2831 |
|
| 2832 |
tprintf(h->s.avctx, "current poc: %d, smallest_poc_greater_than_current: %d\n", s->current_picture_ptr->poc, smallest_poc_greater_than_current);
|
| 2833 |
|
| 2834 |
// find the largest poc
|
| 2835 |
for(list=0; list<2; list++){ |
| 2836 |
int index = 0; |
| 2837 |
int j= -99; |
| 2838 |
int step= list ? -1 : 1; |
| 2839 |
|
| 2840 |
for(i=0; i<h->short_ref_count && index < h->ref_count[list]; i++, j+=step) { |
| 2841 |
int sel;
|
| 2842 |
while(j<0 || j>= h->short_ref_count){ |
| 2843 |
if(j != -99 && step == (list ? -1 : 1)) |
| 2844 |
return -1; |
| 2845 |
step = -step; |
| 2846 |
j= smallest_poc_greater_than_current + (step>>1);
|
| 2847 |
} |
| 2848 |
sel = sorted_short_ref[j].reference | structure_sel; |
| 2849 |
if(sel != PICT_FRAME) continue; |
| 2850 |
frame_list[list][index ]= sorted_short_ref[j]; |
| 2851 |
frame_list[list][index++].pic_id= sorted_short_ref[j].frame_num; |
| 2852 |
} |
| 2853 |
short_len[list] = index; |
| 2854 |
|
| 2855 |
for(i = 0; i < 16 && index < h->ref_count[ list ]; i++){ |
| 2856 |
int sel;
|
| 2857 |
if(h->long_ref[i] == NULL) continue; |
| 2858 |
sel = h->long_ref[i]->reference | structure_sel; |
| 2859 |
if(sel != PICT_FRAME) continue; |
| 2860 |
|
| 2861 |
frame_list[ list ][index ]= *h->long_ref[i]; |
| 2862 |
frame_list[ list ][index++].pic_id= i;; |
| 2863 |
} |
| 2864 |
len[list] = index; |
| 2865 |
|
| 2866 |
if(list && (smallest_poc_greater_than_current<=0 || smallest_poc_greater_than_current>=h->short_ref_count) && (1 < index)){ |
| 2867 |
// swap the two first elements of L1 when
|
| 2868 |
// L0 and L1 are identical
|
| 2869 |
Picture temp= frame_list[1][0]; |
| 2870 |
frame_list[1][0] = frame_list[1][1]; |
| 2871 |
frame_list[1][1] = temp; |
| 2872 |
} |
| 2873 |
|
| 2874 |
} |
| 2875 |
|
| 2876 |
for(list=0; list<2; list++){ |
| 2877 |
if (FIELD_PICTURE)
|
| 2878 |
len[list] = split_field_ref_list(h->default_ref_list[list], |
| 2879 |
h->ref_count[list], |
| 2880 |
frame_list[list], |
| 2881 |
len[list], |
| 2882 |
s->picture_structure, |
| 2883 |
short_len[list]); |
| 2884 |
|
| 2885 |
if(len[list] < h->ref_count[ list ])
|
| 2886 |
memset(&h->default_ref_list[list][len[list]], 0, sizeof(Picture)*(h->ref_count[ list ] - len[list])); |
| 2887 |
} |
| 2888 |
|
| 2889 |
|
| 2890 |
}else{
|
| 2891 |
int index=0; |
| 2892 |
int short_len;
|
| 2893 |
for(i=0; i<h->short_ref_count; i++){ |
| 2894 |
int sel;
|
| 2895 |
sel = h->short_ref[i]->reference | structure_sel; |
| 2896 |
if(sel != PICT_FRAME) continue; |
| 2897 |
frame_list[0][index ]= *h->short_ref[i];
|
| 2898 |
frame_list[0][index++].pic_id= h->short_ref[i]->frame_num;
|
| 2899 |
} |
| 2900 |
short_len = index; |
| 2901 |
for(i = 0; i < 16; i++){ |
| 2902 |
int sel;
|
| 2903 |
if(h->long_ref[i] == NULL) continue; |
| 2904 |
sel = h->long_ref[i]->reference | structure_sel; |
| 2905 |
if(sel != PICT_FRAME) continue; |
| 2906 |
frame_list[0][index ]= *h->long_ref[i];
|
| 2907 |
frame_list[0][index++].pic_id= i;;
|
| 2908 |
} |
| 2909 |
|
| 2910 |
if (FIELD_PICTURE)
|
| 2911 |
index = split_field_ref_list(h->default_ref_list[0],
|
| 2912 |
h->ref_count[0], frame_list[0], |
| 2913 |
index, s->picture_structure, |
| 2914 |
short_len); |
| 2915 |
|
| 2916 |
if(index < h->ref_count[0]) |
| 2917 |
memset(&h->default_ref_list[0][index], 0, sizeof(Picture)*(h->ref_count[0] - index)); |
| 2918 |
} |
| 2919 |
#ifdef TRACE
|
| 2920 |
for (i=0; i<h->ref_count[0]; i++) { |
| 2921 |
tprintf(h->s.avctx, "List0: %s fn:%d 0x%p\n", (h->default_ref_list[0][i].long_ref ? "LT" : "ST"), h->default_ref_list[0][i].pic_id, h->default_ref_list[0][i].data[0]); |
| 2922 |
} |
| 2923 |
if(h->slice_type==B_TYPE){
|
| 2924 |
for (i=0; i<h->ref_count[1]; i++) { |
| 2925 |
tprintf(h->s.avctx, "List1: %s fn:%d 0x%p\n", (h->default_ref_list[1][i].long_ref ? "LT" : "ST"), h->default_ref_list[1][i].pic_id, h->default_ref_list[0][i].data[0]); |
| 2926 |
} |
| 2927 |
} |
| 2928 |
#endif
|
| 2929 |
return 0; |
| 2930 |
} |
| 2931 |
|
| 2932 |
static void print_short_term(H264Context *h); |
| 2933 |
static void print_long_term(H264Context *h); |
| 2934 |
|
| 2935 |
/**
|
| 2936 |
* Extract structure information about the picture described by pic_num in
|
| 2937 |
* the current decoding context (frame or field). Note that pic_num is
|
| 2938 |
* picture number without wrapping (so, 0<=pic_num<max_pic_num).
|
| 2939 |
* @param pic_num picture number for which to extract structure information
|
| 2940 |
* @param structure one of PICT_XXX describing structure of picture
|
| 2941 |
* with pic_num
|
| 2942 |
* @return frame number (short term) or long term index of picture
|
| 2943 |
* described by pic_num
|
| 2944 |
*/
|
| 2945 |
static int pic_num_extract(H264Context *h, int pic_num, int *structure){ |
| 2946 |
MpegEncContext * const s = &h->s;
|
| 2947 |
|
| 2948 |
*structure = s->picture_structure; |
| 2949 |
if(FIELD_PICTURE){
|
| 2950 |
if (!(pic_num & 1)) |
| 2951 |
/* opposite field */
|
| 2952 |
*structure ^= PICT_FRAME; |
| 2953 |
pic_num >>= 1;
|
| 2954 |
} |
| 2955 |
|
| 2956 |
return pic_num;
|
| 2957 |
} |
| 2958 |
|
| 2959 |
static int decode_ref_pic_list_reordering(H264Context *h){ |
| 2960 |
MpegEncContext * const s = &h->s;
|
| 2961 |
int list, index, pic_structure;
|
| 2962 |
|
| 2963 |
print_short_term(h); |
| 2964 |
print_long_term(h); |
| 2965 |
if(h->slice_type==I_TYPE || h->slice_type==SI_TYPE) return 0; //FIXME move before func |
| 2966 |
|
| 2967 |
for(list=0; list<h->list_count; list++){ |
| 2968 |
memcpy(h->ref_list[list], h->default_ref_list[list], sizeof(Picture)*h->ref_count[list]);
|
| 2969 |
|
| 2970 |
if(get_bits1(&s->gb)){
|
| 2971 |
int pred= h->curr_pic_num;
|
| 2972 |
|
| 2973 |
for(index=0; ; index++){ |
| 2974 |
unsigned int reordering_of_pic_nums_idc= get_ue_golomb(&s->gb); |
| 2975 |
unsigned int pic_id; |
| 2976 |
int i;
|
| 2977 |
Picture *ref = NULL;
|
| 2978 |
|
| 2979 |
if(reordering_of_pic_nums_idc==3) |
| 2980 |
break;
|
| 2981 |
|
| 2982 |
if(index >= h->ref_count[list]){
|
| 2983 |
av_log(h->s.avctx, AV_LOG_ERROR, "reference count overflow\n");
|
| 2984 |
return -1; |
| 2985 |
} |
| 2986 |
|
| 2987 |
if(reordering_of_pic_nums_idc<3){ |
| 2988 |
if(reordering_of_pic_nums_idc<2){ |
| 2989 |
const unsigned int abs_diff_pic_num= get_ue_golomb(&s->gb) + 1; |
| 2990 |
int frame_num;
|
| 2991 |
|
| 2992 |
if(abs_diff_pic_num > h->max_pic_num){
|
| 2993 |
av_log(h->s.avctx, AV_LOG_ERROR, "abs_diff_pic_num overflow\n");
|
| 2994 |
return -1; |
| 2995 |
} |
| 2996 |
|
| 2997 |
if(reordering_of_pic_nums_idc == 0) pred-= abs_diff_pic_num; |
| 2998 |
else pred+= abs_diff_pic_num;
|
| 2999 |
pred &= h->max_pic_num - 1;
|
| 3000 |
|
| 3001 |
frame_num = pic_num_extract(h, pred, &pic_structure); |
| 3002 |
|
| 3003 |
for(i= h->short_ref_count-1; i>=0; i--){ |
| 3004 |
ref = h->short_ref[i]; |
| 3005 |
assert(ref->reference); |
| 3006 |
assert(!ref->long_ref); |
| 3007 |
if(ref->data[0] != NULL && |
| 3008 |
ref->frame_num == frame_num && |
| 3009 |
(ref->reference & pic_structure) && |
| 3010 |
ref->long_ref == 0) // ignore non existing pictures by testing data[0] pointer |
| 3011 |
break;
|
| 3012 |
} |
| 3013 |
if(i>=0) |
| 3014 |
ref->pic_id= pred; |
| 3015 |
}else{
|
| 3016 |
int long_idx;
|
| 3017 |
pic_id= get_ue_golomb(&s->gb); //long_term_pic_idx
|
| 3018 |
|
| 3019 |
long_idx= pic_num_extract(h, pic_id, &pic_structure); |
| 3020 |
|
| 3021 |
if(long_idx>31){ |
| 3022 |
av_log(h->s.avctx, AV_LOG_ERROR, "long_term_pic_idx overflow\n");
|
| 3023 |
return -1; |
| 3024 |
} |
| 3025 |
ref = h->long_ref[long_idx]; |
| 3026 |
assert(!(ref && !ref->reference)); |
| 3027 |
if(ref && (ref->reference & pic_structure)){
|
| 3028 |
ref->pic_id= pic_id; |
| 3029 |
assert(ref->long_ref); |
| 3030 |
i=0;
|
| 3031 |
}else{
|
| 3032 |
i=-1;
|
| 3033 |
} |
| 3034 |
} |
| 3035 |
|
| 3036 |
if (i < 0) { |
| 3037 |
av_log(h->s.avctx, AV_LOG_ERROR, "reference picture missing during reorder\n");
|
| 3038 |
memset(&h->ref_list[list][index], 0, sizeof(Picture)); //FIXME |
| 3039 |
} else {
|
| 3040 |
for(i=index; i+1<h->ref_count[list]; i++){ |
| 3041 |
if(ref->long_ref == h->ref_list[list][i].long_ref && ref->pic_id == h->ref_list[list][i].pic_id)
|
| 3042 |
break;
|
| 3043 |
} |
| 3044 |
for(; i > index; i--){
|
| 3045 |
h->ref_list[list][i]= h->ref_list[list][i-1];
|
| 3046 |
} |
| 3047 |
h->ref_list[list][index]= *ref; |
| 3048 |
if (FIELD_PICTURE){
|
| 3049 |
pic_as_field(&h->ref_list[list][index], pic_structure); |
| 3050 |
} |
| 3051 |
} |
| 3052 |
}else{
|
| 3053 |
av_log(h->s.avctx, AV_LOG_ERROR, "illegal reordering_of_pic_nums_idc\n");
|
| 3054 |
return -1; |
| 3055 |
} |
| 3056 |
} |
| 3057 |
} |
| 3058 |
} |
| 3059 |
for(list=0; list<h->list_count; list++){ |
| 3060 |
for(index= 0; index < h->ref_count[list]; index++){ |
| 3061 |
if(!h->ref_list[list][index].data[0]) |
| 3062 |
h->ref_list[list][index]= s->current_picture; |
| 3063 |
} |
| 3064 |
} |
| 3065 |
|
| 3066 |
if(h->slice_type==B_TYPE && !h->direct_spatial_mv_pred)
|
| 3067 |
direct_dist_scale_factor(h); |
| 3068 |
direct_ref_list_init(h); |
| 3069 |
return 0; |
| 3070 |
} |
| 3071 |
|
| 3072 |
static void fill_mbaff_ref_list(H264Context *h){ |
| 3073 |
int list, i, j;
|
| 3074 |
for(list=0; list<2; list++){ //FIXME try list_count |
| 3075 |
for(i=0; i<h->ref_count[list]; i++){ |
| 3076 |
Picture *frame = &h->ref_list[list][i]; |
| 3077 |
Picture *field = &h->ref_list[list][16+2*i]; |
| 3078 |
field[0] = *frame;
|
| 3079 |
for(j=0; j<3; j++) |
| 3080 |
field[0].linesize[j] <<= 1; |
| 3081 |
field[0].reference = PICT_TOP_FIELD;
|
| 3082 |
field[1] = field[0]; |
| 3083 |
for(j=0; j<3; j++) |
| 3084 |
field[1].data[j] += frame->linesize[j];
|
| 3085 |
field[1].reference = PICT_BOTTOM_FIELD;
|
| 3086 |
|
| 3087 |
h->luma_weight[list][16+2*i] = h->luma_weight[list][16+2*i+1] = h->luma_weight[list][i]; |
| 3088 |
h->luma_offset[list][16+2*i] = h->luma_offset[list][16+2*i+1] = h->luma_offset[list][i]; |
| 3089 |
for(j=0; j<2; j++){ |
| 3090 |
h->chroma_weight[list][16+2*i][j] = h->chroma_weight[list][16+2*i+1][j] = h->chroma_weight[list][i][j]; |
| 3091 |
h->chroma_offset[list][16+2*i][j] = h->chroma_offset[list][16+2*i+1][j] = h->chroma_offset[list][i][j]; |
| 3092 |
} |
| 3093 |
} |
| 3094 |
} |
| 3095 |
for(j=0; j<h->ref_count[1]; j++){ |
| 3096 |
for(i=0; i<h->ref_count[0]; i++) |
| 3097 |
h->implicit_weight[j][16+2*i] = h->implicit_weight[j][16+2*i+1] = h->implicit_weight[j][i]; |
| 3098 |
memcpy(h->implicit_weight[16+2*j], h->implicit_weight[j], sizeof(*h->implicit_weight)); |
| 3099 |
memcpy(h->implicit_weight[16+2*j+1], h->implicit_weight[j], sizeof(*h->implicit_weight)); |
| 3100 |
} |
| 3101 |
} |
| 3102 |
|
| 3103 |
static int pred_weight_table(H264Context *h){ |
| 3104 |
MpegEncContext * const s = &h->s;
|
| 3105 |
int list, i;
|
| 3106 |
int luma_def, chroma_def;
|
| 3107 |
|
| 3108 |
h->use_weight= 0;
|
| 3109 |
h->use_weight_chroma= 0;
|
| 3110 |
h->luma_log2_weight_denom= get_ue_golomb(&s->gb); |
| 3111 |
h->chroma_log2_weight_denom= get_ue_golomb(&s->gb); |
| 3112 |
luma_def = 1<<h->luma_log2_weight_denom;
|
| 3113 |
chroma_def = 1<<h->chroma_log2_weight_denom;
|
| 3114 |
|
| 3115 |
for(list=0; list<2; list++){ |
| 3116 |
for(i=0; i<h->ref_count[list]; i++){ |
| 3117 |
int luma_weight_flag, chroma_weight_flag;
|
| 3118 |
|
| 3119 |
luma_weight_flag= get_bits1(&s->gb); |
| 3120 |
if(luma_weight_flag){
|
| 3121 |
h->luma_weight[list][i]= get_se_golomb(&s->gb); |
| 3122 |
h->luma_offset[list][i]= get_se_golomb(&s->gb); |
| 3123 |
if( h->luma_weight[list][i] != luma_def
|
| 3124 |
|| h->luma_offset[list][i] != 0)
|
| 3125 |
h->use_weight= 1;
|
| 3126 |
}else{
|
| 3127 |
h->luma_weight[list][i]= luma_def; |
| 3128 |
h->luma_offset[list][i]= 0;
|
| 3129 |
} |
| 3130 |
|
| 3131 |
chroma_weight_flag= get_bits1(&s->gb); |
| 3132 |
if(chroma_weight_flag){
|
| 3133 |
int j;
|
| 3134 |
for(j=0; j<2; j++){ |
| 3135 |
h->chroma_weight[list][i][j]= get_se_golomb(&s->gb); |
| 3136 |
h->chroma_offset[list][i][j]= get_se_golomb(&s->gb); |
| 3137 |
if( h->chroma_weight[list][i][j] != chroma_def
|
| 3138 |
|| h->chroma_offset[list][i][j] != 0)
|
| 3139 |
h->use_weight_chroma= 1;
|
| 3140 |
} |
| 3141 |
}else{
|
| 3142 |
int j;
|
| 3143 |
for(j=0; j<2; j++){ |
| 3144 |
h->chroma_weight[list][i][j]= chroma_def; |
| 3145 |
h->chroma_offset[list][i][j]= 0;
|
| 3146 |
} |
| 3147 |
} |
| 3148 |
} |
| 3149 |
if(h->slice_type != B_TYPE) break; |
| 3150 |
} |
| 3151 |
h->use_weight= h->use_weight || h->use_weight_chroma; |
| 3152 |
return 0; |
| 3153 |
} |
| 3154 |
|
| 3155 |
static void implicit_weight_table(H264Context *h){ |
| 3156 |
MpegEncContext * const s = &h->s;
|
| 3157 |
int ref0, ref1;
|
| 3158 |
int cur_poc = s->current_picture_ptr->poc;
|
| 3159 |
|
| 3160 |
if( h->ref_count[0] == 1 && h->ref_count[1] == 1 |
| 3161 |
&& h->ref_list[0][0].poc + h->ref_list[1][0].poc == 2*cur_poc){ |
| 3162 |
h->use_weight= 0;
|
| 3163 |
h->use_weight_chroma= 0;
|
| 3164 |
return;
|
| 3165 |
} |
| 3166 |
|
| 3167 |
h->use_weight= 2;
|
| 3168 |
h->use_weight_chroma= 2;
|
| 3169 |
h->luma_log2_weight_denom= 5;
|
| 3170 |
h->chroma_log2_weight_denom= 5;
|
| 3171 |
|
| 3172 |
for(ref0=0; ref0 < h->ref_count[0]; ref0++){ |
| 3173 |
int poc0 = h->ref_list[0][ref0].poc; |
| 3174 |
for(ref1=0; ref1 < h->ref_count[1]; ref1++){ |
| 3175 |
int poc1 = h->ref_list[1][ref1].poc; |
| 3176 |
int td = av_clip(poc1 - poc0, -128, 127); |
| 3177 |
if(td){
|
| 3178 |
int tb = av_clip(cur_poc - poc0, -128, 127); |
| 3179 |
int tx = (16384 + (FFABS(td) >> 1)) / td; |
| 3180 |
int dist_scale_factor = av_clip((tb*tx + 32) >> 6, -1024, 1023) >> 2; |
| 3181 |
if(dist_scale_factor < -64 || dist_scale_factor > 128) |
| 3182 |
h->implicit_weight[ref0][ref1] = 32;
|
| 3183 |
else
|
| 3184 |
h->implicit_weight[ref0][ref1] = 64 - dist_scale_factor;
|
| 3185 |
}else
|
| 3186 |
h->implicit_weight[ref0][ref1] = 32;
|
| 3187 |
} |
| 3188 |
} |
| 3189 |
} |
| 3190 |
|
| 3191 |
/**
|
| 3192 |
* Mark a picture as no longer needed for reference. The refmask
|
| 3193 |
* argument allows unreferencing of individual fields or the whole frame.
|
| 3194 |
* If the picture becomes entirely unreferenced, but is being held for
|
| 3195 |
* display purposes, it is marked as such.
|
| 3196 |
* @param refmask mask of fields to unreference; the mask is bitwise
|
| 3197 |
* anded with the reference marking of pic
|
| 3198 |
* @return non-zero if pic becomes entirely unreferenced (except possibly
|
| 3199 |
* for display purposes) zero if one of the fields remains in
|
| 3200 |
* reference
|
| 3201 |
*/
|
| 3202 |
static inline int unreference_pic(H264Context *h, Picture *pic, int refmask){ |
| 3203 |
int i;
|
| 3204 |
if (pic->reference &= refmask) {
|
| 3205 |
return 0; |
| 3206 |
} else {
|
| 3207 |
if(pic == h->delayed_output_pic)
|
| 3208 |
pic->reference=DELAYED_PIC_REF; |
| 3209 |
else{
|
| 3210 |
for(i = 0; h->delayed_pic[i]; i++) |
| 3211 |
if(pic == h->delayed_pic[i]){
|
| 3212 |
pic->reference=DELAYED_PIC_REF; |
| 3213 |
break;
|
| 3214 |
} |
| 3215 |
} |
| 3216 |
return 1; |
| 3217 |
} |
| 3218 |
} |
| 3219 |
|
| 3220 |
/**
|
| 3221 |
* instantaneous decoder refresh.
|
| 3222 |
*/
|
| 3223 |
static void idr(H264Context *h){ |
| 3224 |
int i;
|
| 3225 |
|
| 3226 |
for(i=0; i<16; i++){ |
| 3227 |
if (h->long_ref[i] != NULL) { |
| 3228 |
unreference_pic(h, h->long_ref[i], 0);
|
| 3229 |
h->long_ref[i]= NULL;
|
| 3230 |
} |
| 3231 |
} |
| 3232 |
h->long_ref_count=0;
|
| 3233 |
|
| 3234 |
for(i=0; i<h->short_ref_count; i++){ |
| 3235 |
unreference_pic(h, h->short_ref[i], 0);
|
| 3236 |
h->short_ref[i]= NULL;
|
| 3237 |
} |
| 3238 |
h->short_ref_count=0;
|
| 3239 |
} |
| 3240 |
|
| 3241 |
/* forget old pics after a seek */
|
| 3242 |
static void flush_dpb(AVCodecContext *avctx){ |
| 3243 |
H264Context *h= avctx->priv_data; |
| 3244 |
int i;
|
| 3245 |
for(i=0; i<16; i++) { |
| 3246 |
if(h->delayed_pic[i])
|
| 3247 |
h->delayed_pic[i]->reference= 0;
|
| 3248 |
h->delayed_pic[i]= NULL;
|
| 3249 |
} |
| 3250 |
if(h->delayed_output_pic)
|
| 3251 |
h->delayed_output_pic->reference= 0;
|
| 3252 |
h->delayed_output_pic= NULL;
|
| 3253 |
idr(h); |
| 3254 |
if(h->s.current_picture_ptr)
|
| 3255 |
h->s.current_picture_ptr->reference= 0;
|
| 3256 |
h->s.first_field= 0;
|
| 3257 |
ff_mpeg_flush(avctx); |
| 3258 |
} |
| 3259 |
|
| 3260 |
/**
|
| 3261 |
* Find a Picture in the short term reference list by frame number.
|
| 3262 |
* @param frame_num frame number to search for
|
| 3263 |
* @param idx the index into h->short_ref where returned picture is found
|
| 3264 |
* undefined if no picture found.
|
| 3265 |
* @return pointer to the found picture, or NULL if no pic with the provided
|
| 3266 |
* frame number is found
|
| 3267 |
*/
|
| 3268 |
static Picture * find_short(H264Context *h, int frame_num, int *idx){ |
| 3269 |
MpegEncContext * const s = &h->s;
|
| 3270 |
int i;
|
| 3271 |
|
| 3272 |
for(i=0; i<h->short_ref_count; i++){ |
| 3273 |
Picture *pic= h->short_ref[i]; |
| 3274 |
if(s->avctx->debug&FF_DEBUG_MMCO)
|
| 3275 |
av_log(h->s.avctx, AV_LOG_DEBUG, "%d %d %p\n", i, pic->frame_num, pic);
|
| 3276 |
if(pic->frame_num == frame_num) {
|
| 3277 |
*idx = i; |
| 3278 |
return pic;
|
| 3279 |
} |
| 3280 |
} |
| 3281 |
return NULL; |
| 3282 |
} |
| 3283 |
|
| 3284 |
/**
|
| 3285 |
* Remove a picture from the short term reference list by its index in
|
| 3286 |
* that list. This does no checking on the provided index; it is assumed
|
| 3287 |
* to be valid. Other list entries are shifted down.
|
| 3288 |
* @param i index into h->short_ref of picture to remove.
|
| 3289 |
*/
|
| 3290 |
static void remove_short_at_index(H264Context *h, int i){ |
| 3291 |
assert(i > 0 && i < h->short_ref_count);
|
| 3292 |
h->short_ref[i]= NULL;
|
| 3293 |
if (--h->short_ref_count)
|
| 3294 |
memmove(&h->short_ref[i], &h->short_ref[i+1], (h->short_ref_count - i)*sizeof(Picture*)); |
| 3295 |
} |
| 3296 |
|
| 3297 |
/**
|
| 3298 |
*
|
| 3299 |
* @return the removed picture or NULL if an error occurs
|
| 3300 |
*/
|
| 3301 |
static Picture * remove_short(H264Context *h, int frame_num){ |
| 3302 |
MpegEncContext * const s = &h->s;
|
| 3303 |
Picture *pic; |
| 3304 |
int i;
|
| 3305 |
|
| 3306 |
if(s->avctx->debug&FF_DEBUG_MMCO)
|
| 3307 |
av_log(h->s.avctx, AV_LOG_DEBUG, "remove short %d count %d\n", frame_num, h->short_ref_count);
|
| 3308 |
|
| 3309 |
pic = find_short(h, frame_num, &i); |
| 3310 |
if (pic)
|
| 3311 |
remove_short_at_index(h, i); |
| 3312 |
|
| 3313 |
return pic;
|
| 3314 |
} |
| 3315 |
|
| 3316 |
/**
|
| 3317 |
* Remove a picture from the long term reference list by its index in
|
| 3318 |
* that list. This does no checking on the provided index; it is assumed
|
| 3319 |
* to be valid. The removed entry is set to NULL. Other entries are unaffected.
|
| 3320 |
* @param i index into h->long_ref of picture to remove.
|
| 3321 |
*/
|
| 3322 |
static void remove_long_at_index(H264Context *h, int i){ |
| 3323 |
h->long_ref[i]= NULL;
|
| 3324 |
h->long_ref_count--; |
| 3325 |
} |
| 3326 |
|
| 3327 |
/**
|
| 3328 |
*
|
| 3329 |
* @return the removed picture or NULL if an error occurs
|
| 3330 |
*/
|
| 3331 |
static Picture * remove_long(H264Context *h, int i){ |
| 3332 |
Picture *pic; |
| 3333 |
|
| 3334 |
pic= h->long_ref[i]; |
| 3335 |
if (pic)
|
| 3336 |
remove_long_at_index(h, i); |
| 3337 |
|
| 3338 |
return pic;
|
| 3339 |
} |
| 3340 |
|
| 3341 |
/**
|
| 3342 |
* print short term list
|
| 3343 |
*/
|
| 3344 |
static void print_short_term(H264Context *h) { |
| 3345 |
uint32_t i; |
| 3346 |
if(h->s.avctx->debug&FF_DEBUG_MMCO) {
|
| 3347 |
av_log(h->s.avctx, AV_LOG_DEBUG, "short term list:\n");
|
| 3348 |
for(i=0; i<h->short_ref_count; i++){ |
| 3349 |
Picture *pic= h->short_ref[i]; |
| 3350 |
av_log(h->s.avctx, AV_LOG_DEBUG, "%d fn:%d poc:%d %p\n", i, pic->frame_num, pic->poc, pic->data[0]); |
| 3351 |
} |
| 3352 |
} |
| 3353 |
} |
| 3354 |
|
| 3355 |
/**
|
| 3356 |
* print long term list
|
| 3357 |
*/
|
| 3358 |
static void print_long_term(H264Context *h) { |
| 3359 |
uint32_t i; |
| 3360 |
if(h->s.avctx->debug&FF_DEBUG_MMCO) {
|
| 3361 |
av_log(h->s.avctx, AV_LOG_DEBUG, "long term list:\n");
|
| 3362 |
for(i = 0; i < 16; i++){ |
| 3363 |
Picture *pic= h->long_ref[i]; |
| 3364 |
if (pic) {
|
| 3365 |
av_log(h->s.avctx, AV_LOG_DEBUG, "%d fn:%d poc:%d %p\n", i, pic->frame_num, pic->poc, pic->data[0]); |
| 3366 |
} |
| 3367 |
} |
| 3368 |
} |
| 3369 |
} |
| 3370 |
|
| 3371 |
/**
|
| 3372 |
* Executes the reference picture marking (memory management control operations).
|
| 3373 |
*/
|
| 3374 |
static int execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count){ |
| 3375 |
MpegEncContext * const s = &h->s;
|
| 3376 |
int i, j;
|
| 3377 |
int current_ref_assigned=0; |
| 3378 |
Picture *pic; |
| 3379 |
|
| 3380 |
if((s->avctx->debug&FF_DEBUG_MMCO) && mmco_count==0) |
| 3381 |
av_log(h->s.avctx, AV_LOG_DEBUG, "no mmco here\n");
|
| 3382 |
|
| 3383 |
for(i=0; i<mmco_count; i++){ |
| 3384 |
int structure, frame_num, unref_pic;
|
| 3385 |
if(s->avctx->debug&FF_DEBUG_MMCO)
|
| 3386 |
av_log(h->s.avctx, AV_LOG_DEBUG, "mmco:%d %d %d\n", h->mmco[i].opcode, h->mmco[i].short_pic_num, h->mmco[i].long_arg);
|
| 3387 |
|
| 3388 |
switch(mmco[i].opcode){
|
| 3389 |
case MMCO_SHORT2UNUSED:
|
| 3390 |
if(s->avctx->debug&FF_DEBUG_MMCO)
|
| 3391 |
av_log(h->s.avctx, AV_LOG_DEBUG, "mmco: unref short %d count %d\n", h->mmco[i].short_pic_num, h->short_ref_count);
|
| 3392 |
frame_num = pic_num_extract(h, mmco[i].short_pic_num, &structure); |
| 3393 |
pic = find_short(h, frame_num, &j); |
| 3394 |
if (pic) {
|
| 3395 |
if (unreference_pic(h, pic, structure ^ PICT_FRAME))
|
| 3396 |
remove_short_at_index(h, j); |
| 3397 |
} else if(s->avctx->debug&FF_DEBUG_MMCO) |
| 3398 |
av_log(h->s.avctx, AV_LOG_DEBUG, "mmco: unref short failure\n");
|
| 3399 |
break;
|
| 3400 |
case MMCO_SHORT2LONG:
|
| 3401 |
if (FIELD_PICTURE && mmco[i].long_arg < h->long_ref_count &&
|
| 3402 |
h->long_ref[mmco[i].long_arg]->frame_num == |
| 3403 |
mmco[i].short_pic_num / 2) {
|
| 3404 |
/* do nothing, we've already moved this field pair. */
|
| 3405 |
} else {
|
| 3406 |
int frame_num = mmco[i].short_pic_num >> FIELD_PICTURE;
|
| 3407 |
|
| 3408 |
pic= remove_long(h, mmco[i].long_arg); |
| 3409 |
if(pic) unreference_pic(h, pic, 0); |
| 3410 |
|
| 3411 |
h->long_ref[ mmco[i].long_arg ]= remove_short(h, frame_num); |
| 3412 |
if (h->long_ref[ mmco[i].long_arg ]){
|
| 3413 |
h->long_ref[ mmco[i].long_arg ]->long_ref=1;
|
| 3414 |
h->long_ref_count++; |
| 3415 |
} |
| 3416 |
} |
| 3417 |
break;
|
| 3418 |
case MMCO_LONG2UNUSED:
|
| 3419 |
j = pic_num_extract(h, mmco[i].long_arg, &structure); |
| 3420 |
pic = h->long_ref[j]; |
| 3421 |
if (pic) {
|
| 3422 |
if (unreference_pic(h, pic, structure ^ PICT_FRAME))
|
| 3423 |
remove_long_at_index(h, j); |
| 3424 |
} else if(s->avctx->debug&FF_DEBUG_MMCO) |
| 3425 |
av_log(h->s.avctx, AV_LOG_DEBUG, "mmco: unref long failure\n");
|
| 3426 |
break;
|
| 3427 |
case MMCO_LONG:
|
| 3428 |
unref_pic = 1;
|
| 3429 |
if (FIELD_PICTURE && !s->first_field) {
|
| 3430 |
if (h->long_ref[mmco[i].long_arg] == s->current_picture_ptr) {
|
| 3431 |
/* Just mark second field as referenced */
|
| 3432 |
unref_pic = 0;
|
| 3433 |
} else if (s->current_picture_ptr->reference) { |
| 3434 |
/* First field in pair is in short term list or
|
| 3435 |
* at a different long term index.
|
| 3436 |
* This is not allowed; see 7.4.3, notes 2 and 3.
|
| 3437 |
* Report the problem and keep the pair where it is,
|
| 3438 |
* and mark this field valid.
|
| 3439 |
*/
|
| 3440 |
av_log(h->s.avctx, AV_LOG_ERROR, |
| 3441 |
"illegal long term reference assignment for second "
|
| 3442 |
"field in complementary field pair (first field is "
|
| 3443 |
"short term or has non-matching long index)\n");
|
| 3444 |
unref_pic = 0;
|
| 3445 |
} |
| 3446 |
} |
| 3447 |
|
| 3448 |
if (unref_pic) {
|
| 3449 |
pic= remove_long(h, mmco[i].long_arg); |
| 3450 |
if(pic) unreference_pic(h, pic, 0); |
| 3451 |
|
| 3452 |
h->long_ref[ mmco[i].long_arg ]= s->current_picture_ptr; |
| 3453 |
h->long_ref[ mmco[i].long_arg ]->long_ref=1;
|
| 3454 |
h->long_ref_count++; |
| 3455 |
} |
| 3456 |
|
| 3457 |
s->current_picture_ptr->reference |= s->picture_structure; |
| 3458 |
current_ref_assigned=1;
|
| 3459 |
break;
|
| 3460 |
case MMCO_SET_MAX_LONG:
|
| 3461 |
assert(mmco[i].long_arg <= 16);
|
| 3462 |
// just remove the long term which index is greater than new max
|
| 3463 |
for(j = mmco[i].long_arg; j<16; j++){ |
| 3464 |
pic = remove_long(h, j); |
| 3465 |
if (pic) unreference_pic(h, pic, 0); |
| 3466 |
} |
| 3467 |
break;
|
| 3468 |
case MMCO_RESET:
|
| 3469 |
while(h->short_ref_count){
|
| 3470 |
pic= remove_short(h, h->short_ref[0]->frame_num);
|
| 3471 |
if(pic) unreference_pic(h, pic, 0); |
| 3472 |
} |
| 3473 |
for(j = 0; j < 16; j++) { |
| 3474 |
pic= remove_long(h, j); |
| 3475 |
if(pic) unreference_pic(h, pic, 0); |
| 3476 |
} |
| 3477 |
break;
|
| 3478 |
default: assert(0); |
| 3479 |
} |
| 3480 |
} |
| 3481 |
|
| 3482 |
if (!current_ref_assigned && FIELD_PICTURE &&
|
| 3483 |
!s->first_field && s->current_picture_ptr->reference) {
|
| 3484 |
|
| 3485 |
/* Second field of complementary field pair; the first field of
|
| 3486 |
* which is already referenced. If short referenced, it
|
| 3487 |
* should be first entry in short_ref. If not, it must exist
|
| 3488 |
* in long_ref; trying to put it on the short list here is an
|
| 3489 |
* error in the encoded bit stream (ref: 7.4.3, NOTE 2 and 3).
|
| 3490 |
*/
|
| 3491 |
if (h->short_ref_count && h->short_ref[0] == s->current_picture_ptr) { |
| 3492 |
/* Just mark the second field valid */
|
| 3493 |
s->current_picture_ptr->reference = PICT_FRAME; |
| 3494 |
} else if (s->current_picture_ptr->long_ref) { |
| 3495 |
av_log(h->s.avctx, AV_LOG_ERROR, "illegal short term reference "
|
| 3496 |
"assignment for second field "
|
| 3497 |
"in complementary field pair "
|
| 3498 |
"(first field is long term)\n");
|
| 3499 |
} else {
|
| 3500 |
/*
|
| 3501 |
* First field in reference, but not in any sensible place on our
|
| 3502 |
* reference lists. This shouldn't happen unless reference
|
| 3503 |
* handling somewhere else is wrong.
|
| 3504 |
*/
|
| 3505 |
assert(0);
|
| 3506 |
} |
| 3507 |
current_ref_assigned = 1;
|
| 3508 |
} |
| 3509 |
|
| 3510 |
if(!current_ref_assigned){
|
| 3511 |
pic= remove_short(h, s->current_picture_ptr->frame_num); |
| 3512 |
if(pic){
|
| 3513 |
unreference_pic(h, pic, 0);
|
| 3514 |
av_log(h->s.avctx, AV_LOG_ERROR, "illegal short term buffer state detected\n");
|
| 3515 |
} |
| 3516 |
|
| 3517 |
if(h->short_ref_count)
|
| 3518 |
memmove(&h->short_ref[1], &h->short_ref[0], h->short_ref_count*sizeof(Picture*)); |
| 3519 |
|
| 3520 |
h->short_ref[0]= s->current_picture_ptr;
|
| 3521 |
h->short_ref[0]->long_ref=0; |
| 3522 |
h->short_ref_count++; |
| 3523 |
s->current_picture_ptr->reference |= s->picture_structure; |
| 3524 |
} |
| 3525 |
|
| 3526 |
if (h->long_ref_count + h->short_ref_count > h->sps.ref_frame_count){
|
| 3527 |
|
| 3528 |
/* We have too many reference frames, probably due to corrupted
|
| 3529 |
* stream. Need to discard one frame. Prevents overrun of the
|
| 3530 |
* short_ref and long_ref buffers.
|
| 3531 |
*/
|
| 3532 |
av_log(h->s.avctx, AV_LOG_ERROR, |
| 3533 |
"number of reference frames exceeds max (probably "
|
| 3534 |
"corrupt input), discarding one\n");
|
| 3535 |
|
| 3536 |
if (h->long_ref_count) {
|
| 3537 |
for (i = 0; i < 16; ++i) |
| 3538 |
if (h->long_ref[i])
|
| 3539 |
break;
|
| 3540 |
|
| 3541 |
assert(i < 16);
|
| 3542 |
pic = h->long_ref[i]; |
| 3543 |
remove_long_at_index(h, i); |
| 3544 |
} else {
|
| 3545 |
pic = h->short_ref[h->short_ref_count - 1];
|
| 3546 |
remove_short_at_index(h, h->short_ref_count - 1);
|
| 3547 |
} |
| 3548 |
unreference_pic(h, pic, 0);
|
| 3549 |
} |
| 3550 |
|
| 3551 |
print_short_term(h); |
| 3552 |
print_long_term(h); |
| 3553 |
return 0; |
| 3554 |
} |
| 3555 |
|
| 3556 |
static int decode_ref_pic_marking(H264Context *h, GetBitContext *gb){ |
| 3557 |
MpegEncContext * const s = &h->s;
|
| 3558 |
int i;
|
| 3559 |
|
| 3560 |
if(h->nal_unit_type == NAL_IDR_SLICE){ //FIXME fields |
| 3561 |
s->broken_link= get_bits1(gb) -1;
|
| 3562 |
h->mmco[0].long_arg= get_bits1(gb) - 1; // current_long_term_idx |
| 3563 |
if(h->mmco[0].long_arg == -1) |
| 3564 |
h->mmco_index= 0;
|
| 3565 |
else{
|
| 3566 |
h->mmco[0].opcode= MMCO_LONG;
|
| 3567 |
h->mmco_index= 1;
|
| 3568 |
} |
| 3569 |
}else{
|
| 3570 |
if(get_bits1(gb)){ // adaptive_ref_pic_marking_mode_flag |
| 3571 |
for(i= 0; i<MAX_MMCO_COUNT; i++) { |
| 3572 |
MMCOOpcode opcode= get_ue_golomb(gb); |
| 3573 |
|
| 3574 |
h->mmco[i].opcode= opcode; |
| 3575 |
if(opcode==MMCO_SHORT2UNUSED || opcode==MMCO_SHORT2LONG){
|
| 3576 |
h->mmco[i].short_pic_num= (h->curr_pic_num - get_ue_golomb(gb) - 1) & (h->max_pic_num - 1); |
| 3577 |
/* if(h->mmco[i].short_pic_num >= h->short_ref_count || h->short_ref[ h->mmco[i].short_pic_num ] == NULL){
|
| 3578 |
av_log(s->avctx, AV_LOG_ERROR, "illegal short ref in memory management control operation %d\n", mmco);
|
| 3579 |
return -1;
|
| 3580 |
}*/
|
| 3581 |
} |
| 3582 |
if(opcode==MMCO_SHORT2LONG || opcode==MMCO_LONG2UNUSED || opcode==MMCO_LONG || opcode==MMCO_SET_MAX_LONG){
|
| 3583 |
unsigned int long_arg= get_ue_golomb(gb); |
| 3584 |
if(long_arg >= 32 || (long_arg >= 16 && !(opcode == MMCO_LONG2UNUSED && FIELD_PICTURE))){ |
| 3585 |
av_log(h->s.avctx, AV_LOG_ERROR, "illegal long ref in memory management control operation %d\n", opcode);
|
| 3586 |
return -1; |
| 3587 |
} |
| 3588 |
h->mmco[i].long_arg= long_arg; |
| 3589 |
} |
| 3590 |
|
| 3591 |
if(opcode > (unsigned)MMCO_LONG){ |
| 3592 |
av_log(h->s.avctx, AV_LOG_ERROR, "illegal memory management control operation %d\n", opcode);
|
| 3593 |
return -1; |
| 3594 |
} |
| 3595 |
if(opcode == MMCO_END)
|
| 3596 |
break;
|
| 3597 |
} |
| 3598 |
h->mmco_index= i; |
| 3599 |
}else{
|
| 3600 |
assert(h->long_ref_count + h->short_ref_count <= h->sps.ref_frame_count); |
| 3601 |
|
| 3602 |
if(h->short_ref_count && h->long_ref_count + h->short_ref_count == h->sps.ref_frame_count &&
|
| 3603 |
!(FIELD_PICTURE && !s->first_field && s->current_picture_ptr->reference)) {
|
| 3604 |
h->mmco[0].opcode= MMCO_SHORT2UNUSED;
|
| 3605 |
h->mmco[0].short_pic_num= h->short_ref[ h->short_ref_count - 1 ]->frame_num; |
| 3606 |
h->mmco_index= 1;
|
| 3607 |
if (FIELD_PICTURE) {
|
| 3608 |
h->mmco[0].short_pic_num *= 2; |
| 3609 |
h->mmco[1].opcode= MMCO_SHORT2UNUSED;
|
| 3610 |
h->mmco[1].short_pic_num= h->mmco[0].short_pic_num + 1; |
| 3611 |
h->mmco_index= 2;
|
| 3612 |
} |
| 3613 |
}else
|
| 3614 |
h->mmco_index= 0;
|
| 3615 |
} |
| 3616 |
} |
| 3617 |
|
| 3618 |
return 0; |
| 3619 |
} |
| 3620 |
|
| 3621 |
static int init_poc(H264Context *h){ |
| 3622 |
MpegEncContext * const s = &h->s;
|
| 3623 |
const int max_frame_num= 1<<h->sps.log2_max_frame_num; |
| 3624 |
int field_poc[2]; |
| 3625 |
|
| 3626 |
if(h->nal_unit_type == NAL_IDR_SLICE){
|
| 3627 |
h->frame_num_offset= 0;
|
| 3628 |
}else{
|
| 3629 |
if(h->frame_num < h->prev_frame_num)
|
| 3630 |
h->frame_num_offset= h->prev_frame_num_offset + max_frame_num; |
| 3631 |
else
|
| 3632 |
h->frame_num_offset= h->prev_frame_num_offset; |
| 3633 |
} |
| 3634 |
|
| 3635 |
if(h->sps.poc_type==0){ |
| 3636 |
const int max_poc_lsb= 1<<h->sps.log2_max_poc_lsb; |
| 3637 |
|
| 3638 |
if(h->nal_unit_type == NAL_IDR_SLICE){
|
| 3639 |
h->prev_poc_msb= |
| 3640 |
h->prev_poc_lsb= 0;
|
| 3641 |
} |
| 3642 |
|
| 3643 |
if (h->poc_lsb < h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb >= max_poc_lsb/2) |
| 3644 |
h->poc_msb = h->prev_poc_msb + max_poc_lsb; |
| 3645 |
else if(h->poc_lsb > h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb < -max_poc_lsb/2) |
| 3646 |
h->poc_msb = h->prev_poc_msb - max_poc_lsb; |
| 3647 |
else
|
| 3648 |
h->poc_msb = h->prev_poc_msb; |
| 3649 |
//printf("poc: %d %d\n", h->poc_msb, h->poc_lsb);
|
| 3650 |
field_poc[0] =
|
| 3651 |
field_poc[1] = h->poc_msb + h->poc_lsb;
|
| 3652 |
if(s->picture_structure == PICT_FRAME)
|
| 3653 |
field_poc[1] += h->delta_poc_bottom;
|
| 3654 |
}else if(h->sps.poc_type==1){ |
| 3655 |
int abs_frame_num, expected_delta_per_poc_cycle, expectedpoc;
|
| 3656 |
int i;
|
| 3657 |
|
| 3658 |
if(h->sps.poc_cycle_length != 0) |
| 3659 |
abs_frame_num = h->frame_num_offset + h->frame_num; |
| 3660 |
else
|
| 3661 |
abs_frame_num = 0;
|
| 3662 |
|
| 3663 |
if(h->nal_ref_idc==0 && abs_frame_num > 0) |
| 3664 |
abs_frame_num--; |
| 3665 |
|
| 3666 |
expected_delta_per_poc_cycle = 0;
|
| 3667 |
for(i=0; i < h->sps.poc_cycle_length; i++) |
| 3668 |
expected_delta_per_poc_cycle += h->sps.offset_for_ref_frame[ i ]; //FIXME integrate during sps parse
|
| 3669 |
|
| 3670 |
if(abs_frame_num > 0){ |
| 3671 |
int poc_cycle_cnt = (abs_frame_num - 1) / h->sps.poc_cycle_length; |
| 3672 |
int frame_num_in_poc_cycle = (abs_frame_num - 1) % h->sps.poc_cycle_length; |
| 3673 |
|
| 3674 |
expectedpoc = poc_cycle_cnt * expected_delta_per_poc_cycle; |
| 3675 |
for(i = 0; i <= frame_num_in_poc_cycle; i++) |
| 3676 |
expectedpoc = expectedpoc + h->sps.offset_for_ref_frame[ i ]; |
| 3677 |
} else
|
| 3678 |
expectedpoc = 0;
|
| 3679 |
|
| 3680 |
if(h->nal_ref_idc == 0) |
| 3681 |
expectedpoc = expectedpoc + h->sps.offset_for_non_ref_pic; |
| 3682 |
|
| 3683 |
field_poc[0] = expectedpoc + h->delta_poc[0]; |
| 3684 |
field_poc[1] = field_poc[0] + h->sps.offset_for_top_to_bottom_field; |
| 3685 |
|
| 3686 |
if(s->picture_structure == PICT_FRAME)
|
| 3687 |
field_poc[1] += h->delta_poc[1]; |
| 3688 |
}else{
|
| 3689 |
int poc;
|
| 3690 |
if(h->nal_unit_type == NAL_IDR_SLICE){
|
| 3691 |
poc= 0;
|
| 3692 |
}else{
|
| 3693 |
if(h->nal_ref_idc) poc= 2*(h->frame_num_offset + h->frame_num); |
| 3694 |
else poc= 2*(h->frame_num_offset + h->frame_num) - 1; |
| 3695 |
} |
| 3696 |
field_poc[0]= poc;
|
| 3697 |
field_poc[1]= poc;
|
| 3698 |
} |
| 3699 |
|
| 3700 |
if(s->picture_structure != PICT_BOTTOM_FIELD) {
|
| 3701 |
s->current_picture_ptr->field_poc[0]= field_poc[0]; |
| 3702 |
s->current_picture_ptr->poc = field_poc[0];
|
| 3703 |
} |
| 3704 |
if(s->picture_structure != PICT_TOP_FIELD) {
|
| 3705 |
s->current_picture_ptr->field_poc[1]= field_poc[1]; |
| 3706 |
s->current_picture_ptr->poc = field_poc[1];
|
| 3707 |
} |
| 3708 |
if(!FIELD_PICTURE || !s->first_field) {
|
| 3709 |
Picture *cur = s->current_picture_ptr; |
| 3710 |
cur->poc= FFMIN(cur->field_poc[0], cur->field_poc[1]); |
| 3711 |
} |
| 3712 |
|
| 3713 |
return 0; |
| 3714 |
} |
| 3715 |
|
| 3716 |
|
| 3717 |
/**
|
| 3718 |
* initialize scan tables
|
| 3719 |
*/
|
| 3720 |
static void init_scan_tables(H264Context *h){ |
| 3721 |
MpegEncContext * const s = &h->s;
|
| 3722 |
int i;
|
| 3723 |
if(s->dsp.h264_idct_add == ff_h264_idct_add_c){ //FIXME little ugly |
| 3724 |
memcpy(h->zigzag_scan, zigzag_scan, 16*sizeof(uint8_t)); |
| 3725 |
memcpy(h-> field_scan, field_scan, 16*sizeof(uint8_t)); |
| 3726 |
}else{
|
| 3727 |
for(i=0; i<16; i++){ |
| 3728 |
#define T(x) (x>>2) | ((x<<2) & 0xF) |
| 3729 |
h->zigzag_scan[i] = T(zigzag_scan[i]); |
| 3730 |
h-> field_scan[i] = T( field_scan[i]); |
| 3731 |
#undef T
|
| 3732 |
} |
| 3733 |
} |
| 3734 |
if(s->dsp.h264_idct8_add == ff_h264_idct8_add_c){
|
| 3735 |
memcpy(h->zigzag_scan8x8, zigzag_scan8x8, 64*sizeof(uint8_t)); |
| 3736 |
memcpy(h->zigzag_scan8x8_cavlc, zigzag_scan8x8_cavlc, 64*sizeof(uint8_t)); |
| 3737 |
memcpy(h->field_scan8x8, field_scan8x8, 64*sizeof(uint8_t)); |
| 3738 |
memcpy(h->field_scan8x8_cavlc, field_scan8x8_cavlc, 64*sizeof(uint8_t)); |
| 3739 |
}else{
|
| 3740 |
for(i=0; i<64; i++){ |
| 3741 |
#define T(x) (x>>3) | ((x&7)<<3) |
| 3742 |
h->zigzag_scan8x8[i] = T(zigzag_scan8x8[i]); |
| 3743 |
h->zigzag_scan8x8_cavlc[i] = T(zigzag_scan8x8_cavlc[i]); |
| 3744 |
h->field_scan8x8[i] = T(field_scan8x8[i]); |
| 3745 |
h->field_scan8x8_cavlc[i] = T(field_scan8x8_cavlc[i]); |
| 3746 |
#undef T
|
| 3747 |
} |
| 3748 |
} |
| 3749 |
if(h->sps.transform_bypass){ //FIXME same ugly |
| 3750 |
h->zigzag_scan_q0 = zigzag_scan; |
| 3751 |
h->zigzag_scan8x8_q0 = zigzag_scan8x8; |
| 3752 |
h->zigzag_scan8x8_cavlc_q0 = zigzag_scan8x8_cavlc; |
| 3753 |
h->field_scan_q0 = field_scan; |
| 3754 |
h->field_scan8x8_q0 = field_scan8x8; |
| 3755 |
h->field_scan8x8_cavlc_q0 = field_scan8x8_cavlc; |
| 3756 |
}else{
|
| 3757 |
h->zigzag_scan_q0 = h->zigzag_scan; |
| 3758 |
h->zigzag_scan8x8_q0 = h->zigzag_scan8x8; |
| 3759 |
h->zigzag_scan8x8_cavlc_q0 = h->zigzag_scan8x8_cavlc; |
| 3760 |
h->field_scan_q0 = h->field_scan; |
| 3761 |
h->field_scan8x8_q0 = h->field_scan8x8; |
| 3762 |
h->field_scan8x8_cavlc_q0 = h->field_scan8x8_cavlc; |
| 3763 |
} |
| 3764 |
} |
| 3765 |
|
| 3766 |
/**
|
| 3767 |
* Replicates H264 "master" context to thread contexts.
|
| 3768 |
*/
|
| 3769 |
static void clone_slice(H264Context *dst, H264Context *src) |
| 3770 |
{
|
| 3771 |
memcpy(dst->block_offset, src->block_offset, sizeof(dst->block_offset));
|
| 3772 |
dst->s.current_picture_ptr = src->s.current_picture_ptr; |
| 3773 |
dst->s.current_picture = src->s.current_picture; |
| 3774 |
dst->s.linesize = src->s.linesize; |
| 3775 |
dst->s.uvlinesize = src->s.uvlinesize; |
| 3776 |
dst->s.first_field = src->s.first_field; |
| 3777 |
|
| 3778 |
dst->prev_poc_msb = src->prev_poc_msb; |
| 3779 |
dst->prev_poc_lsb = src->prev_poc_lsb; |
| 3780 |
dst->prev_frame_num_offset = src->prev_frame_num_offset; |
| 3781 |
dst->prev_frame_num = src->prev_frame_num; |
| 3782 |
dst->short_ref_count = src->short_ref_count; |
| 3783 |
|
| 3784 |
memcpy(dst->short_ref, src->short_ref, sizeof(dst->short_ref));
|
| 3785 |
memcpy(dst->long_ref, src->long_ref, sizeof(dst->long_ref));
|
| 3786 |
memcpy(dst->default_ref_list, src->default_ref_list, sizeof(dst->default_ref_list));
|
| 3787 |
memcpy(dst->ref_list, src->ref_list, sizeof(dst->ref_list));
|
| 3788 |
|
| 3789 |
memcpy(dst->dequant4_coeff, src->dequant4_coeff, sizeof(src->dequant4_coeff));
|
| 3790 |
memcpy(dst->dequant8_coeff, src->dequant8_coeff, sizeof(src->dequant8_coeff));
|
| 3791 |
} |
| 3792 |
|
| 3793 |
/**
|
| 3794 |
* decodes a slice header.
|
| 3795 |
* this will allso call MPV_common_init() and frame_start() as needed
|
| 3796 |
*
|
| 3797 |
* @param h h264context
|
| 3798 |
* @param h0 h264 master context (differs from 'h' when doing sliced based parallel decoding)
|
| 3799 |
*
|
| 3800 |
* @return 0 if okay, <0 if an error occured, 1 if decoding must not be multithreaded
|
| 3801 |
*/
|
| 3802 |
static int decode_slice_header(H264Context *h, H264Context *h0){ |
| 3803 |
MpegEncContext * const s = &h->s;
|
| 3804 |
MpegEncContext * const s0 = &h0->s;
|
| 3805 |
unsigned int first_mb_in_slice; |
| 3806 |
unsigned int pps_id; |
| 3807 |
int num_ref_idx_active_override_flag;
|
| 3808 |
static const uint8_t slice_type_map[5]= {P_TYPE, B_TYPE, I_TYPE, SP_TYPE, SI_TYPE}; |
| 3809 |
unsigned int slice_type, tmp, i; |
| 3810 |
int default_ref_list_done = 0; |
| 3811 |
int last_pic_structure;
|
| 3812 |
|
| 3813 |
s->dropable= h->nal_ref_idc == 0;
|
| 3814 |
|
| 3815 |
if((s->avctx->flags2 & CODEC_FLAG2_FAST) && !h->nal_ref_idc){
|
| 3816 |
s->me.qpel_put= s->dsp.put_2tap_qpel_pixels_tab; |
| 3817 |
s->me.qpel_avg= s->dsp.avg_2tap_qpel_pixels_tab; |
| 3818 |
}else{
|
| 3819 |
s->me.qpel_put= s->dsp.put_h264_qpel_pixels_tab; |
| 3820 |
s->me.qpel_avg= s->dsp.avg_h264_qpel_pixels_tab; |
| 3821 |
} |
| 3822 |
|
| 3823 |
first_mb_in_slice= get_ue_golomb(&s->gb); |
| 3824 |
|
| 3825 |
if((s->flags2 & CODEC_FLAG2_CHUNKS) && first_mb_in_slice == 0){ |
| 3826 |
h0->current_slice = 0;
|
| 3827 |
if (!s0->first_field)
|
| 3828 |
s->current_picture_ptr= NULL;
|
| 3829 |
} |
| 3830 |
|
| 3831 |
slice_type= get_ue_golomb(&s->gb); |
| 3832 |
if(slice_type > 9){ |
| 3833 |
av_log(h->s.avctx, AV_LOG_ERROR, "slice type too large (%d) at %d %d\n", h->slice_type, s->mb_x, s->mb_y);
|
| 3834 |
return -1; |
| 3835 |
} |
| 3836 |
if(slice_type > 4){ |
| 3837 |
slice_type -= 5;
|
| 3838 |
h->slice_type_fixed=1;
|
| 3839 |
}else
|
| 3840 |
h->slice_type_fixed=0;
|
| 3841 |
|
| 3842 |
slice_type= slice_type_map[ slice_type ]; |
| 3843 |
if (slice_type == I_TYPE
|
| 3844 |
|| (h0->current_slice != 0 && slice_type == h0->last_slice_type) ) {
|
| 3845 |
default_ref_list_done = 1;
|
| 3846 |
} |
| 3847 |
h->slice_type= slice_type; |
| 3848 |
|
| 3849 |
s->pict_type= h->slice_type; // to make a few old func happy, it's wrong though
|
| 3850 |
if (s->pict_type == B_TYPE && s0->last_picture_ptr == NULL) { |
| 3851 |
av_log(h->s.avctx, AV_LOG_ERROR, |
| 3852 |
"B picture before any references, skipping\n");
|
| 3853 |
return -1; |
| 3854 |
} |
| 3855 |
|
| 3856 |
pps_id= get_ue_golomb(&s->gb); |
| 3857 |
if(pps_id>=MAX_PPS_COUNT){
|
| 3858 |
av_log(h->s.avctx, AV_LOG_ERROR, "pps_id out of range\n");
|
| 3859 |
return -1; |
| 3860 |
} |
| 3861 |
if(!h0->pps_buffers[pps_id]) {
|
| 3862 |
av_log(h->s.avctx, AV_LOG_ERROR, "non existing PPS referenced\n");
|
| 3863 |
return -1; |
| 3864 |
} |
| 3865 |
h->pps= *h0->pps_buffers[pps_id]; |
| 3866 |
|
| 3867 |
if(!h0->sps_buffers[h->pps.sps_id]) {
|
| 3868 |
av_log(h->s.avctx, AV_LOG_ERROR, "non existing SPS referenced\n");
|
| 3869 |
return -1; |
| 3870 |
} |
| 3871 |
h->sps = *h0->sps_buffers[h->pps.sps_id]; |
| 3872 |
|
| 3873 |
if(h == h0 && h->dequant_coeff_pps != pps_id){
|
| 3874 |
h->dequant_coeff_pps = pps_id; |
| 3875 |
init_dequant_tables(h); |
| 3876 |
} |
| 3877 |
|
| 3878 |
s->mb_width= h->sps.mb_width; |
| 3879 |
s->mb_height= h->sps.mb_height * (2 - h->sps.frame_mbs_only_flag);
|
| 3880 |
|
| 3881 |
h->b_stride= s->mb_width*4;
|
| 3882 |
h->b8_stride= s->mb_width*2;
|
| 3883 |
|
| 3884 |
s->width = 16*s->mb_width - 2*(h->sps.crop_left + h->sps.crop_right ); |
| 3885 |
if(h->sps.frame_mbs_only_flag)
|
| 3886 |
s->height= 16*s->mb_height - 2*(h->sps.crop_top + h->sps.crop_bottom); |
| 3887 |
else
|
| 3888 |
s->height= 16*s->mb_height - 4*(h->sps.crop_top + h->sps.crop_bottom); //FIXME recheck |
| 3889 |
|
| 3890 |
if (s->context_initialized
|
| 3891 |
&& ( s->width != s->avctx->width || s->height != s->avctx->height)) {
|
| 3892 |
if(h != h0)
|
| 3893 |
return -1; // width / height changed during parallelized decoding |
| 3894 |
free_tables(h); |
| 3895 |
MPV_common_end(s); |
| 3896 |
} |
| 3897 |
if (!s->context_initialized) {
|
| 3898 |
if(h != h0)
|
| 3899 |
return -1; // we cant (re-)initialize context during parallel decoding |
| 3900 |
if (MPV_common_init(s) < 0) |
| 3901 |
return -1; |
| 3902 |
s->first_field = 0;
|
| 3903 |
|
| 3904 |
init_scan_tables(h); |
| 3905 |
alloc_tables(h); |
| 3906 |
|
| 3907 |
for(i = 1; i < s->avctx->thread_count; i++) { |
| 3908 |
H264Context *c; |
| 3909 |
c = h->thread_context[i] = av_malloc(sizeof(H264Context));
|
| 3910 |
memcpy(c, h, sizeof(MpegEncContext));
|
| 3911 |
memset(&c->s + 1, 0, sizeof(H264Context) - sizeof(MpegEncContext)); |
| 3912 |
c->sps = h->sps; |
| 3913 |
c->pps = h->pps; |
| 3914 |
init_scan_tables(c); |
| 3915 |
clone_tables(c, h); |
| 3916 |
} |
| 3917 |
|
| 3918 |
for(i = 0; i < s->avctx->thread_count; i++) |
| 3919 |
if(context_init(h->thread_context[i]) < 0) |
| 3920 |
return -1; |
| 3921 |
|
| 3922 |
s->avctx->width = s->width; |
| 3923 |
s->avctx->height = s->height; |
| 3924 |
s->avctx->sample_aspect_ratio= h->sps.sar; |
| 3925 |
if(!s->avctx->sample_aspect_ratio.den)
|
| 3926 |
s->avctx->sample_aspect_ratio.den = 1;
|
| 3927 |
|
| 3928 |
if(h->sps.timing_info_present_flag){
|
| 3929 |
s->avctx->time_base= (AVRational){h->sps.num_units_in_tick * 2, h->sps.time_scale};
|
| 3930 |
if(h->x264_build > 0 && h->x264_build < 44) |
| 3931 |
s->avctx->time_base.den *= 2;
|
| 3932 |
av_reduce(&s->avctx->time_base.num, &s->avctx->time_base.den, |
| 3933 |
s->avctx->time_base.num, s->avctx->time_base.den, 1<<30); |
| 3934 |
} |
| 3935 |
} |
| 3936 |
|
| 3937 |
h->frame_num= get_bits(&s->gb, h->sps.log2_max_frame_num); |
| 3938 |
|
| 3939 |
h->mb_mbaff = 0;
|
| 3940 |
h->mb_aff_frame = 0;
|
| 3941 |
last_pic_structure = s0->picture_structure; |
| 3942 |
if(h->sps.frame_mbs_only_flag){
|
| 3943 |
s->picture_structure= PICT_FRAME; |
| 3944 |
}else{
|
| 3945 |
if(get_bits1(&s->gb)) { //field_pic_flag |
| 3946 |
s->picture_structure= PICT_TOP_FIELD + get_bits1(&s->gb); //bottom_field_flag
|
| 3947 |
} else {
|
| 3948 |
s->picture_structure= PICT_FRAME; |
| 3949 |
h->mb_aff_frame = h->sps.mb_aff; |
| 3950 |
} |
| 3951 |
} |
| 3952 |
|
| 3953 |
if(h0->current_slice == 0){ |
| 3954 |
/* See if we have a decoded first field looking for a pair... */
|
| 3955 |
if (s0->first_field) {
|
| 3956 |
assert(s0->current_picture_ptr); |
| 3957 |
assert(s0->current_picture_ptr->data[0]);
|
| 3958 |
assert(s0->current_picture_ptr->reference != DELAYED_PIC_REF); |
| 3959 |
|
| 3960 |
/* figure out if we have a complementary field pair */
|
| 3961 |
if (!FIELD_PICTURE || s->picture_structure == last_pic_structure) {
|
| 3962 |
/*
|
| 3963 |
* Previous field is unmatched. Don't display it, but let it
|
| 3964 |
* remain for reference if marked as such.
|
| 3965 |
*/
|
| 3966 |
s0->current_picture_ptr = NULL;
|
| 3967 |
s0->first_field = FIELD_PICTURE; |
| 3968 |
|
| 3969 |
} else {
|
| 3970 |
if (h->nal_ref_idc &&
|
| 3971 |
s0->current_picture_ptr->reference && |
| 3972 |
s0->current_picture_ptr->frame_num != h->frame_num) {
|
| 3973 |
/*
|
| 3974 |
* This and previous field were reference, but had
|
| 3975 |
* different frame_nums. Consider this field first in
|
| 3976 |
* pair. Throw away previous field except for reference
|
| 3977 |
* purposes.
|
| 3978 |
*/
|
| 3979 |
s0->first_field = 1;
|
| 3980 |
s0->current_picture_ptr = NULL;
|
| 3981 |
|
| 3982 |
} else {
|
| 3983 |
/* Second field in complementary pair */
|
| 3984 |
s0->first_field = 0;
|
| 3985 |
} |
| 3986 |
} |
| 3987 |
|
| 3988 |
} else {
|
| 3989 |
/* Frame or first field in a potentially complementary pair */
|
| 3990 |
assert(!s0->current_picture_ptr); |
| 3991 |
s0->first_field = FIELD_PICTURE; |
| 3992 |
} |
| 3993 |
|
| 3994 |
if((!FIELD_PICTURE || s0->first_field) && frame_start(h) < 0) { |
| 3995 |
s0->first_field = 0;
|
| 3996 |
return -1; |
| 3997 |
} |
| 3998 |
} |
| 3999 |
if(h != h0)
|
| 4000 |
clone_slice(h, h0); |
| 4001 |
|
| 4002 |
s->current_picture_ptr->frame_num= h->frame_num; //FIXME frame_num cleanup
|
| 4003 |
|
| 4004 |
assert(s->mb_num == s->mb_width * s->mb_height); |
| 4005 |
if(first_mb_in_slice << FIELD_OR_MBAFF_PICTURE >= s->mb_num ||
|
| 4006 |
first_mb_in_slice >= s->mb_num){
|
| 4007 |
av_log(h->s.avctx, AV_LOG_ERROR, "first_mb_in_slice overflow\n");
|
| 4008 |
return -1; |
| 4009 |
} |
| 4010 |
s->resync_mb_x = s->mb_x = first_mb_in_slice % s->mb_width; |
| 4011 |
s->resync_mb_y = s->mb_y = (first_mb_in_slice / s->mb_width) << FIELD_OR_MBAFF_PICTURE; |
| 4012 |
if (s->picture_structure == PICT_BOTTOM_FIELD)
|
| 4013 |
s->resync_mb_y = s->mb_y = s->mb_y + 1;
|
| 4014 |
assert(s->mb_y < s->mb_height); |
| 4015 |
|
| 4016 |
if(s->picture_structure==PICT_FRAME){
|
| 4017 |
h->curr_pic_num= h->frame_num; |
| 4018 |
h->max_pic_num= 1<< h->sps.log2_max_frame_num;
|
| 4019 |
}else{
|
| 4020 |
h->curr_pic_num= 2*h->frame_num + 1; |
| 4021 |
h->max_pic_num= 1<<(h->sps.log2_max_frame_num + 1); |
| 4022 |
} |
| 4023 |
|
| 4024 |
if(h->nal_unit_type == NAL_IDR_SLICE){
|
| 4025 |
get_ue_golomb(&s->gb); /* idr_pic_id */
|
| 4026 |
} |
| 4027 |
|
| 4028 |
if(h->sps.poc_type==0){ |
| 4029 |
h->poc_lsb= get_bits(&s->gb, h->sps.log2_max_poc_lsb); |
| 4030 |
|
| 4031 |
if(h->pps.pic_order_present==1 && s->picture_structure==PICT_FRAME){ |
| 4032 |
h->delta_poc_bottom= get_se_golomb(&s->gb); |
| 4033 |
} |
| 4034 |
} |
| 4035 |
|
| 4036 |
if(h->sps.poc_type==1 && !h->sps.delta_pic_order_always_zero_flag){ |
| 4037 |
h->delta_poc[0]= get_se_golomb(&s->gb);
|
| 4038 |
|
| 4039 |
if(h->pps.pic_order_present==1 && s->picture_structure==PICT_FRAME) |
| 4040 |
h->delta_poc[1]= get_se_golomb(&s->gb);
|
| 4041 |
} |
| 4042 |
|
| 4043 |
init_poc(h); |
| 4044 |
|
| 4045 |
if(h->pps.redundant_pic_cnt_present){
|
| 4046 |
h->redundant_pic_count= get_ue_golomb(&s->gb); |
| 4047 |
} |
| 4048 |
|
| 4049 |
//set defaults, might be overriden a few line later
|
| 4050 |
h->ref_count[0]= h->pps.ref_count[0]; |
| 4051 |
h->ref_count[1]= h->pps.ref_count[1]; |
| 4052 |
|
| 4053 |
if(h->slice_type == P_TYPE || h->slice_type == SP_TYPE || h->slice_type == B_TYPE){
|
| 4054 |
if(h->slice_type == B_TYPE){
|
| 4055 |
h->direct_spatial_mv_pred= get_bits1(&s->gb); |
| 4056 |
if(FIELD_OR_MBAFF_PICTURE && h->direct_spatial_mv_pred)
|
| 4057 |
av_log(h->s.avctx, AV_LOG_ERROR, "Interlaced pictures + spatial direct mode is not implemented\n");
|
| 4058 |
} |
| 4059 |
num_ref_idx_active_override_flag= get_bits1(&s->gb); |
| 4060 |
|
| 4061 |
if(num_ref_idx_active_override_flag){
|
| 4062 |
h->ref_count[0]= get_ue_golomb(&s->gb) + 1; |
| 4063 |
if(h->slice_type==B_TYPE)
|
| 4064 |
h->ref_count[1]= get_ue_golomb(&s->gb) + 1; |
| 4065 |
|
| 4066 |
if(h->ref_count[0]-1 > 32-1 || h->ref_count[1]-1 > 32-1){ |
| 4067 |
av_log(h->s.avctx, AV_LOG_ERROR, "reference overflow\n");
|
| 4068 |
h->ref_count[0]= h->ref_count[1]= 1; |
| 4069 |
return -1; |
| 4070 |
} |
| 4071 |
} |
| 4072 |
if(h->slice_type == B_TYPE)
|
| 4073 |
h->list_count= 2;
|
| 4074 |
else
|
| 4075 |
h->list_count= 1;
|
| 4076 |
}else
|
| 4077 |
h->list_count= 0;
|
| 4078 |
|
| 4079 |
if(!default_ref_list_done){
|
| 4080 |
fill_default_ref_list(h); |
| 4081 |
} |
| 4082 |
|
| 4083 |
if(decode_ref_pic_list_reordering(h) < 0) |
| 4084 |
return -1; |
| 4085 |
|
| 4086 |
if( (h->pps.weighted_pred && (h->slice_type == P_TYPE || h->slice_type == SP_TYPE ))
|
| 4087 |
|| (h->pps.weighted_bipred_idc==1 && h->slice_type==B_TYPE ) )
|
| 4088 |
pred_weight_table(h); |
| 4089 |
else if(h->pps.weighted_bipred_idc==2 && h->slice_type==B_TYPE) |
| 4090 |
implicit_weight_table(h); |
| 4091 |
else
|
| 4092 |
h->use_weight = 0;
|
| 4093 |
|
| 4094 |
if(h->nal_ref_idc)
|
| 4095 |
decode_ref_pic_marking(h0, &s->gb); |
| 4096 |
|
| 4097 |
if(FRAME_MBAFF)
|
| 4098 |
fill_mbaff_ref_list(h); |
| 4099 |
|
| 4100 |
if( h->slice_type != I_TYPE && h->slice_type != SI_TYPE && h->pps.cabac ){
|
| 4101 |
tmp = get_ue_golomb(&s->gb); |
| 4102 |
if(tmp > 2){ |
| 4103 |
av_log(s->avctx, AV_LOG_ERROR, "cabac_init_idc overflow\n");
|
| 4104 |
return -1; |
| 4105 |
} |
| 4106 |
h->cabac_init_idc= tmp; |
| 4107 |
} |
| 4108 |
|
| 4109 |
h->last_qscale_diff = 0;
|
| 4110 |
tmp = h->pps.init_qp + get_se_golomb(&s->gb); |
| 4111 |
if(tmp>51){ |
| 4112 |
av_log(s->avctx, AV_LOG_ERROR, "QP %u out of range\n", tmp);
|
| 4113 |
return -1; |
| 4114 |
} |
| 4115 |
s->qscale= tmp; |
| 4116 |
h->chroma_qp[0] = get_chroma_qp(h, 0, s->qscale); |
| 4117 |
h->chroma_qp[1] = get_chroma_qp(h, 1, s->qscale); |
| 4118 |
//FIXME qscale / qp ... stuff
|
| 4119 |
if(h->slice_type == SP_TYPE){
|
| 4120 |
get_bits1(&s->gb); /* sp_for_switch_flag */
|
| 4121 |
} |
| 4122 |
if(h->slice_type==SP_TYPE || h->slice_type == SI_TYPE){
|
| 4123 |
get_se_golomb(&s->gb); /* slice_qs_delta */
|
| 4124 |
} |
| 4125 |
|
| 4126 |
h->deblocking_filter = 1;
|
| 4127 |
h->slice_alpha_c0_offset = 0;
|
| 4128 |
h->slice_beta_offset = 0;
|
| 4129 |
if( h->pps.deblocking_filter_parameters_present ) {
|
| 4130 |
tmp= get_ue_golomb(&s->gb); |
| 4131 |
if(tmp > 2){ |
| 4132 |
av_log(s->avctx, AV_LOG_ERROR, "deblocking_filter_idc %u out of range\n", tmp);
|
| 4133 |
return -1; |
| 4134 |
} |
| 4135 |
h->deblocking_filter= tmp; |
| 4136 |
if(h->deblocking_filter < 2) |
| 4137 |
h->deblocking_filter^= 1; // 1<->0 |
| 4138 |
|
| 4139 |
if( h->deblocking_filter ) {
|
| 4140 |
h->slice_alpha_c0_offset = get_se_golomb(&s->gb) << 1;
|
| 4141 |
h->slice_beta_offset = get_se_golomb(&s->gb) << 1;
|
| 4142 |
} |
| 4143 |
} |
| 4144 |
|
| 4145 |
if( s->avctx->skip_loop_filter >= AVDISCARD_ALL
|
| 4146 |
||(s->avctx->skip_loop_filter >= AVDISCARD_NONKEY && h->slice_type != I_TYPE) |
| 4147 |
||(s->avctx->skip_loop_filter >= AVDISCARD_BIDIR && h->slice_type == B_TYPE) |
| 4148 |
||(s->avctx->skip_loop_filter >= AVDISCARD_NONREF && h->nal_ref_idc == 0))
|
| 4149 |
h->deblocking_filter= 0;
|
| 4150 |
|
| 4151 |
if(h->deblocking_filter == 1 && h0->max_contexts > 1) { |
| 4152 |
if(s->avctx->flags2 & CODEC_FLAG2_FAST) {
|
| 4153 |
/* Cheat slightly for speed:
|
| 4154 |
Do not bother to deblock across slices. */
|
| 4155 |
h->deblocking_filter = 2;
|
| 4156 |
} else {
|
| 4157 |
h0->max_contexts = 1;
|
| 4158 |
if(!h0->single_decode_warning) {
|
| 4159 |
av_log(s->avctx, AV_LOG_INFO, "Cannot parallelize deblocking type 1, decoding such frames in sequential order\n");
|
| 4160 |
h0->single_decode_warning = 1;
|
| 4161 |
} |
| 4162 |
if(h != h0)
|
| 4163 |
return 1; // deblocking switched inside frame |
| 4164 |
} |
| 4165 |
} |
| 4166 |
|
| 4167 |
#if 0 //FMO
|
| 4168 |
if( h->pps.num_slice_groups > 1 && h->pps.mb_slice_group_map_type >= 3 && h->pps.mb_slice_group_map_type <= 5)
|
| 4169 |
slice_group_change_cycle= get_bits(&s->gb, ?);
|
| 4170 |
#endif
|
| 4171 |
|
| 4172 |
h0->last_slice_type = slice_type; |
| 4173 |
h->slice_num = ++h0->current_slice; |
| 4174 |
|
| 4175 |
h->emu_edge_width= (s->flags&CODEC_FLAG_EMU_EDGE) ? 0 : 16; |
| 4176 |
h->emu_edge_height= (FRAME_MBAFF || FIELD_PICTURE) ? 0 : h->emu_edge_width;
|
| 4177 |
|
| 4178 |
if(s->avctx->debug&FF_DEBUG_PICT_INFO){
|
| 4179 |
av_log(h->s.avctx, AV_LOG_DEBUG, "slice:%d %s mb:%d %c pps:%u frame:%d poc:%d/%d ref:%d/%d qp:%d loop:%d:%d:%d weight:%d%s\n",
|
| 4180 |
h->slice_num, |
| 4181 |
(s->picture_structure==PICT_FRAME ? "F" : s->picture_structure==PICT_TOP_FIELD ? "T" : "B"), |
| 4182 |
first_mb_in_slice, |
| 4183 |
av_get_pict_type_char(h->slice_type), |
| 4184 |
pps_id, h->frame_num, |
| 4185 |
s->current_picture_ptr->field_poc[0], s->current_picture_ptr->field_poc[1], |
| 4186 |
h->ref_count[0], h->ref_count[1], |
| 4187 |
s->qscale, |
| 4188 |
h->deblocking_filter, h->slice_alpha_c0_offset/2, h->slice_beta_offset/2, |
| 4189 |
h->use_weight, |
| 4190 |
h->use_weight==1 && h->use_weight_chroma ? "c" : "" |
| 4191 |
); |
| 4192 |
} |
| 4193 |
|
| 4194 |
return 0; |
| 4195 |
} |
| 4196 |
|
| 4197 |
/**
|
| 4198 |
*
|
| 4199 |
*/
|
| 4200 |
static inline int get_level_prefix(GetBitContext *gb){ |
| 4201 |
unsigned int buf; |
| 4202 |
int log;
|
| 4203 |
|
| 4204 |
OPEN_READER(re, gb); |
| 4205 |
UPDATE_CACHE(re, gb); |
| 4206 |
buf=GET_CACHE(re, gb); |
| 4207 |
|
| 4208 |
log= 32 - av_log2(buf);
|
| 4209 |
#ifdef TRACE
|
| 4210 |
print_bin(buf>>(32-log), log);
|
| 4211 |
av_log(NULL, AV_LOG_DEBUG, "%5d %2d %3d lpr @%5d in %s get_level_prefix\n", buf>>(32-log), log, log-1, get_bits_count(gb), __FILE__); |
| 4212 |
#endif
|
| 4213 |
|
| 4214 |
LAST_SKIP_BITS(re, gb, log); |
| 4215 |
CLOSE_READER(re, gb); |
| 4216 |
|
| 4217 |
return log-1; |
| 4218 |
} |
| 4219 |
|
| 4220 |
static inline int get_dct8x8_allowed(H264Context *h){ |
| 4221 |
int i;
|
| 4222 |
for(i=0; i<4; i++){ |
| 4223 |
if(!IS_SUB_8X8(h->sub_mb_type[i])
|
| 4224 |
|| (!h->sps.direct_8x8_inference_flag && IS_DIRECT(h->sub_mb_type[i]))) |
| 4225 |
return 0; |
| 4226 |
} |
| 4227 |
return 1; |
| 4228 |
} |
| 4229 |
|
| 4230 |
/**
|
| 4231 |
* decodes a residual block.
|
| 4232 |
* @param n block index
|
| 4233 |
* @param scantable scantable
|
| 4234 |
* @param max_coeff number of coefficients in the block
|
| 4235 |
* @return <0 if an error occured
|
| 4236 |
*/
|
| 4237 |
static int decode_residual(H264Context *h, GetBitContext *gb, DCTELEM *block, int n, const uint8_t *scantable, const uint32_t *qmul, int max_coeff){ |
| 4238 |
MpegEncContext * const s = &h->s;
|
| 4239 |
static const int coeff_token_table_index[17]= {0, 0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3}; |
| 4240 |
int level[16]; |
| 4241 |
int zeros_left, coeff_num, coeff_token, total_coeff, i, j, trailing_ones, run_before;
|
| 4242 |
|
| 4243 |
//FIXME put trailing_onex into the context
|
| 4244 |
|
| 4245 |
if(n == CHROMA_DC_BLOCK_INDEX){
|
| 4246 |
coeff_token= get_vlc2(gb, chroma_dc_coeff_token_vlc.table, CHROMA_DC_COEFF_TOKEN_VLC_BITS, 1);
|
| 4247 |
total_coeff= coeff_token>>2;
|
| 4248 |
}else{
|
| 4249 |
if(n == LUMA_DC_BLOCK_INDEX){
|
| 4250 |
total_coeff= pred_non_zero_count(h, 0);
|
| 4251 |
coeff_token= get_vlc2(gb, coeff_token_vlc[ coeff_token_table_index[total_coeff] ].table, COEFF_TOKEN_VLC_BITS, 2);
|
| 4252 |
total_coeff= coeff_token>>2;
|
| 4253 |
}else{
|
| 4254 |
total_coeff= pred_non_zero_count(h, n); |
| 4255 |
coeff_token= get_vlc2(gb, coeff_token_vlc[ coeff_token_table_index[total_coeff] ].table, COEFF_TOKEN_VLC_BITS, 2);
|
| 4256 |
total_coeff= coeff_token>>2;
|
| 4257 |
h->non_zero_count_cache[ scan8[n] ]= total_coeff; |
| 4258 |
} |
| 4259 |
} |
| 4260 |
|
| 4261 |
//FIXME set last_non_zero?
|
| 4262 |
|
| 4263 |
if(total_coeff==0) |
| 4264 |
return 0; |
| 4265 |
if(total_coeff > (unsigned)max_coeff) { |
| 4266 |
av_log(h->s.avctx, AV_LOG_ERROR, "corrupted macroblock %d %d (total_coeff=%d)\n", s->mb_x, s->mb_y, total_coeff);
|
| 4267 |
return -1; |
| 4268 |
} |
| 4269 |
|
| 4270 |
trailing_ones= coeff_token&3;
|
| 4271 |
tprintf(h->s.avctx, "trailing:%d, total:%d\n", trailing_ones, total_coeff);
|
| 4272 |
assert(total_coeff<=16);
|
| 4273 |
|
| 4274 |
for(i=0; i<trailing_ones; i++){ |
| 4275 |
level[i]= 1 - 2*get_bits1(gb); |
| 4276 |
} |
| 4277 |
|
| 4278 |
if(i<total_coeff) {
|
| 4279 |
int level_code, mask;
|
| 4280 |
int suffix_length = total_coeff > 10 && trailing_ones < 3; |
| 4281 |
int prefix= get_level_prefix(gb);
|
| 4282 |
|
| 4283 |
//first coefficient has suffix_length equal to 0 or 1
|
| 4284 |
if(prefix<14){ //FIXME try to build a large unified VLC table for all this |
| 4285 |
if(suffix_length)
|
| 4286 |
level_code= (prefix<<suffix_length) + get_bits(gb, suffix_length); //part
|
| 4287 |
else
|
| 4288 |
level_code= (prefix<<suffix_length); //part
|
| 4289 |
}else if(prefix==14){ |
| 4290 |
if(suffix_length)
|
| 4291 |
level_code= (prefix<<suffix_length) + get_bits(gb, suffix_length); //part
|
| 4292 |
else
|
| 4293 |
level_code= prefix + get_bits(gb, 4); //part |
| 4294 |
}else if(prefix==15){ |
| 4295 |
level_code= (prefix<<suffix_length) + get_bits(gb, 12); //part |
| 4296 |
if(suffix_length==0) level_code+=15; //FIXME doesn't make (much)sense |
| 4297 |
}else{
|
| 4298 |
av_log(h->s.avctx, AV_LOG_ERROR, "prefix too large at %d %d\n", s->mb_x, s->mb_y);
|
| 4299 |
return -1; |
| 4300 |
} |
| 4301 |
|
| 4302 |
if(trailing_ones < 3) level_code += 2; |
| 4303 |
|
| 4304 |
suffix_length = 1;
|
| 4305 |
if(level_code > 5) |
| 4306 |
suffix_length++; |
| 4307 |
mask= -(level_code&1);
|
| 4308 |
level[i]= (((2+level_code)>>1) ^ mask) - mask; |
| 4309 |
i++; |
| 4310 |
|
| 4311 |
//remaining coefficients have suffix_length > 0
|
| 4312 |
for(;i<total_coeff;i++) {
|
| 4313 |
static const int suffix_limit[7] = {0,5,11,23,47,95,INT_MAX }; |
| 4314 |
prefix = get_level_prefix(gb); |
| 4315 |
if(prefix<15){ |
| 4316 |
level_code = (prefix<<suffix_length) + get_bits(gb, suffix_length); |
| 4317 |
}else if(prefix==15){ |
| 4318 |
level_code = (prefix<<suffix_length) + get_bits(gb, 12);
|
| 4319 |
}else{
|
| 4320 |
av_log(h->s.avctx, AV_LOG_ERROR, "prefix too large at %d %d\n", s->mb_x, s->mb_y);
|
| 4321 |
return -1; |
| 4322 |
} |
| 4323 |
mask= -(level_code&1);
|
| 4324 |
level[i]= (((2+level_code)>>1) ^ mask) - mask; |
| 4325 |
if(level_code > suffix_limit[suffix_length])
|
| 4326 |
suffix_length++; |
| 4327 |
} |
| 4328 |
} |
| 4329 |
|
| 4330 |
if(total_coeff == max_coeff)
|
| 4331 |
zeros_left=0;
|
| 4332 |
else{
|
| 4333 |
if(n == CHROMA_DC_BLOCK_INDEX)
|
| 4334 |
zeros_left= get_vlc2(gb, chroma_dc_total_zeros_vlc[ total_coeff-1 ].table, CHROMA_DC_TOTAL_ZEROS_VLC_BITS, 1); |
| 4335 |
else
|
| 4336 |
zeros_left= get_vlc2(gb, total_zeros_vlc[ total_coeff-1 ].table, TOTAL_ZEROS_VLC_BITS, 1); |
| 4337 |
} |
| 4338 |
|
| 4339 |
coeff_num = zeros_left + total_coeff - 1;
|
| 4340 |
j = scantable[coeff_num]; |
| 4341 |
if(n > 24){ |
| 4342 |
block[j] = level[0];
|
| 4343 |
for(i=1;i<total_coeff;i++) { |
| 4344 |
if(zeros_left <= 0) |
| 4345 |
run_before = 0;
|
| 4346 |
else if(zeros_left < 7){ |
| 4347 |
run_before= get_vlc2(gb, run_vlc[zeros_left-1].table, RUN_VLC_BITS, 1); |
| 4348 |
}else{
|
| 4349 |
run_before= get_vlc2(gb, run7_vlc.table, RUN7_VLC_BITS, 2);
|
| 4350 |
} |
| 4351 |
zeros_left -= run_before; |
| 4352 |
coeff_num -= 1 + run_before;
|
| 4353 |
j= scantable[ coeff_num ]; |
| 4354 |
|
| 4355 |
block[j]= level[i]; |
| 4356 |
} |
| 4357 |
}else{
|
| 4358 |
block[j] = (level[0] * qmul[j] + 32)>>6; |
| 4359 |
for(i=1;i<total_coeff;i++) { |
| 4360 |
if(zeros_left <= 0) |
| 4361 |
run_before = 0;
|
| 4362 |
else if(zeros_left < 7){ |
| 4363 |
run_before= get_vlc2(gb, run_vlc[zeros_left-1].table, RUN_VLC_BITS, 1); |
| 4364 |
}else{
|
| 4365 |
run_before= get_vlc2(gb, run7_vlc.table, RUN7_VLC_BITS, 2);
|
| 4366 |
} |
| 4367 |
zeros_left -= run_before; |
| 4368 |
coeff_num -= 1 + run_before;
|
| 4369 |
j= scantable[ coeff_num ]; |
| 4370 |
|
| 4371 |
block[j]= (level[i] * qmul[j] + 32)>>6; |
| 4372 |
} |
| 4373 |
} |
| 4374 |
|
| 4375 |
if(zeros_left<0){ |
| 4376 |
av_log(h->s.avctx, AV_LOG_ERROR, "negative number of zero coeffs at %d %d\n", s->mb_x, s->mb_y);
|
| 4377 |
return -1; |
| 4378 |
} |
| 4379 |
|
| 4380 |
return 0; |
| 4381 |
} |
| 4382 |
|
| 4383 |
static void predict_field_decoding_flag(H264Context *h){ |
| 4384 |
MpegEncContext * const s = &h->s;
|
| 4385 |
const int mb_xy= s->mb_x + s->mb_y*s->mb_stride; |
| 4386 |
int mb_type = (h->slice_table[mb_xy-1] == h->slice_num) |
| 4387 |
? s->current_picture.mb_type[mb_xy-1]
|
| 4388 |
: (h->slice_table[mb_xy-s->mb_stride] == h->slice_num) |
| 4389 |
? s->current_picture.mb_type[mb_xy-s->mb_stride] |
| 4390 |
: 0;
|
| 4391 |
h->mb_mbaff = h->mb_field_decoding_flag = IS_INTERLACED(mb_type) ? 1 : 0; |
| 4392 |
} |
| 4393 |
|
| 4394 |
/**
|
| 4395 |
* decodes a P_SKIP or B_SKIP macroblock
|
| 4396 |
*/
|
| 4397 |
static void decode_mb_skip(H264Context *h){ |
| 4398 |
MpegEncContext * const s = &h->s;
|
| 4399 |
const int mb_xy= s->mb_x + s->mb_y*s->mb_stride; |
| 4400 |
int mb_type=0; |
| 4401 |
|
| 4402 |
memset(h->non_zero_count[mb_xy], 0, 16); |
| 4403 |
memset(h->non_zero_count_cache + 8, 0, 8*5); //FIXME ugly, remove pfui |
| 4404 |
|
| 4405 |
if(MB_FIELD)
|
| 4406 |
mb_type|= MB_TYPE_INTERLACED; |
| 4407 |
|
| 4408 |
if( h->slice_type == B_TYPE )
|
| 4409 |
{
|
| 4410 |
// just for fill_caches. pred_direct_motion will set the real mb_type
|
| 4411 |
mb_type|= MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2|MB_TYPE_SKIP; |
| 4412 |
|
| 4413 |
fill_caches(h, mb_type, 0); //FIXME check what is needed and what not ... |
| 4414 |
pred_direct_motion(h, &mb_type); |
| 4415 |
mb_type|= MB_TYPE_SKIP; |
| 4416 |
} |
| 4417 |
else
|
| 4418 |
{
|
| 4419 |
int mx, my;
|
| 4420 |
mb_type|= MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P1L0|MB_TYPE_SKIP; |
| 4421 |
|
| 4422 |
fill_caches(h, mb_type, 0); //FIXME check what is needed and what not ... |
| 4423 |
pred_pskip_motion(h, &mx, &my); |
| 4424 |
fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, 0, 1); |
| 4425 |
fill_rectangle( h->mv_cache[0][scan8[0]], 4, 4, 8, pack16to32(mx,my), 4); |
| 4426 |
} |
| 4427 |
|
| 4428 |
write_back_motion(h, mb_type); |
| 4429 |
s->current_picture.mb_type[mb_xy]= mb_type; |
| 4430 |
s->current_picture.qscale_table[mb_xy]= s->qscale; |
| 4431 |
h->slice_table[ mb_xy ]= h->slice_num; |
| 4432 |
h->prev_mb_skipped= 1;
|
| 4433 |
} |
| 4434 |
|
| 4435 |
/**
|
| 4436 |
* decodes a macroblock
|
| 4437 |
* @returns 0 if ok, AC_ERROR / DC_ERROR / MV_ERROR if an error is noticed
|
| 4438 |
*/
|
| 4439 |
static int decode_mb_cavlc(H264Context *h){ |
| 4440 |
MpegEncContext * const s = &h->s;
|
| 4441 |
const int mb_xy= s->mb_x + s->mb_y*s->mb_stride; |
| 4442 |
int partition_count;
|
| 4443 |
unsigned int mb_type, cbp; |
| 4444 |
int dct8x8_allowed= h->pps.transform_8x8_mode;
|
| 4445 |
|
| 4446 |
s->dsp.clear_blocks(h->mb); //FIXME avoid if already clear (move after skip handlong?
|
| 4447 |
|
| 4448 |
tprintf(s->avctx, "pic:%d mb:%d/%d\n", h->frame_num, s->mb_x, s->mb_y);
|
| 4449 |
cbp = 0; /* avoid warning. FIXME: find a solution without slowing |
| 4450 |
down the code */
|
| 4451 |
if(h->slice_type != I_TYPE && h->slice_type != SI_TYPE){
|
| 4452 |
if(s->mb_skip_run==-1) |
| 4453 |
s->mb_skip_run= get_ue_golomb(&s->gb); |
| 4454 |
|
| 4455 |
if (s->mb_skip_run--) {
|
| 4456 |
if(FRAME_MBAFF && (s->mb_y&1) == 0){ |
| 4457 |
if(s->mb_skip_run==0) |
| 4458 |
h->mb_mbaff = h->mb_field_decoding_flag = get_bits1(&s->gb); |
| 4459 |
else
|
| 4460 |
predict_field_decoding_flag(h); |
| 4461 |
} |
| 4462 |
decode_mb_skip(h); |
| 4463 |
return 0; |
| 4464 |
} |
| 4465 |
} |
| 4466 |
if(FRAME_MBAFF){
|
| 4467 |
if( (s->mb_y&1) == 0 ) |
| 4468 |
h->mb_mbaff = h->mb_field_decoding_flag = get_bits1(&s->gb); |
| 4469 |