ffmpeg / libavcodec / mpegvideo.c @ ca74c0a1
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/*
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* The simplest mpeg encoder (well, it was the simplest!)
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* Copyright (c) 2000,2001 Fabrice Bellard.
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* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
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*
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* 4MV & hq & B-frame encoding stuff by 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 mpegvideo.c
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* The simplest mpeg encoder (well, it was the simplest!).
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*/
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#include "avcodec.h" |
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#include "dsputil.h" |
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#include "mpegvideo.h" |
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#include "mpegvideo_common.h" |
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#include "mjpegenc.h" |
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#include "msmpeg4.h" |
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#include "faandct.h" |
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#include <limits.h> |
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|
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//#undef NDEBUG
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//#include <assert.h>
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static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s, |
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DCTELEM *block, int n, int qscale); |
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static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s, |
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DCTELEM *block, int n, int qscale); |
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static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s, |
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DCTELEM *block, int n, int qscale); |
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static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s, |
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DCTELEM *block, int n, int qscale); |
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static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s, |
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DCTELEM *block, int n, int qscale); |
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static void dct_unquantize_h263_intra_c(MpegEncContext *s, |
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DCTELEM *block, int n, int qscale); |
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static void dct_unquantize_h263_inter_c(MpegEncContext *s, |
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DCTELEM *block, int n, int qscale); |
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|
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extern int XVMC_field_start(MpegEncContext*s, AVCodecContext *avctx); |
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extern void XVMC_field_end(MpegEncContext *s); |
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extern void XVMC_decode_mb(MpegEncContext *s); |
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/* enable all paranoid tests for rounding, overflows, etc... */
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//#define PARANOID
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//#define DEBUG
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static const uint8_t ff_default_chroma_qscale_table[32]={ |
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// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31 |
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}; |
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|
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const uint8_t ff_mpeg1_dc_scale_table[128]={ |
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// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
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8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, |
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8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, |
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8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, |
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8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, |
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}; |
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const uint8_t *ff_find_start_code(const uint8_t * restrict p, const uint8_t *end, uint32_t * restrict state){ |
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int i;
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assert(p<=end); |
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if(p>=end)
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return end;
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for(i=0; i<3; i++){ |
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uint32_t tmp= *state << 8;
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*state= tmp + *(p++); |
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if(tmp == 0x100 || p==end) |
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return p;
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} |
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while(p<end){
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if (p[-1] > 1 ) p+= 3; |
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else if(p[-2] ) p+= 2; |
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else if(p[-3]|(p[-1]-1)) p++; |
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else{
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p++; |
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break;
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} |
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} |
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p= FFMIN(p, end)-4;
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*state= AV_RB32(p); |
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return p+4; |
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} |
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/* init common dct for both encoder and decoder */
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int ff_dct_common_init(MpegEncContext *s)
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{
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s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_c; |
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s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_c; |
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s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_c; |
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s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_c; |
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s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_c; |
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if(s->flags & CODEC_FLAG_BITEXACT)
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s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_bitexact; |
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s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_c; |
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#if defined(HAVE_MMX)
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MPV_common_init_mmx(s); |
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#elif defined(ARCH_ALPHA)
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MPV_common_init_axp(s); |
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#elif defined(CONFIG_MLIB)
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MPV_common_init_mlib(s); |
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#elif defined(HAVE_MMI)
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MPV_common_init_mmi(s); |
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#elif defined(ARCH_ARMV4L)
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MPV_common_init_armv4l(s); |
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#elif defined(HAVE_ALTIVEC)
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MPV_common_init_altivec(s); |
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#elif defined(ARCH_BFIN)
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MPV_common_init_bfin(s); |
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#endif
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/* load & permutate scantables
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note: only wmv uses different ones
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*/
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if(s->alternate_scan){
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ff_init_scantable(s->dsp.idct_permutation, &s->inter_scantable , ff_alternate_vertical_scan); |
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ff_init_scantable(s->dsp.idct_permutation, &s->intra_scantable , ff_alternate_vertical_scan); |
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}else{
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ff_init_scantable(s->dsp.idct_permutation, &s->inter_scantable , ff_zigzag_direct); |
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ff_init_scantable(s->dsp.idct_permutation, &s->intra_scantable , ff_zigzag_direct); |
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} |
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ff_init_scantable(s->dsp.idct_permutation, &s->intra_h_scantable, ff_alternate_horizontal_scan); |
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ff_init_scantable(s->dsp.idct_permutation, &s->intra_v_scantable, ff_alternate_vertical_scan); |
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return 0; |
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} |
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void copy_picture(Picture *dst, Picture *src){
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*dst = *src; |
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dst->type= FF_BUFFER_TYPE_COPY; |
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} |
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/**
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* allocates a Picture
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* The pixels are allocated/set by calling get_buffer() if shared=0
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*/
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int alloc_picture(MpegEncContext *s, Picture *pic, int shared){ |
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const int big_mb_num= s->mb_stride*(s->mb_height+1) + 1; //the +1 is needed so memset(,,stride*height) does not sig11 |
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const int mb_array_size= s->mb_stride*s->mb_height; |
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const int b8_array_size= s->b8_stride*s->mb_height*2; |
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const int b4_array_size= s->b4_stride*s->mb_height*4; |
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int i;
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int r= -1; |
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if(shared){
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assert(pic->data[0]);
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assert(pic->type == 0 || pic->type == FF_BUFFER_TYPE_SHARED);
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pic->type= FF_BUFFER_TYPE_SHARED; |
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}else{
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assert(!pic->data[0]);
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r= s->avctx->get_buffer(s->avctx, (AVFrame*)pic); |
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if(r<0 || !pic->age || !pic->type || !pic->data[0]){ |
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av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed (%d %d %d %p)\n", r, pic->age, pic->type, pic->data[0]); |
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return -1; |
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} |
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if(s->linesize && (s->linesize != pic->linesize[0] || s->uvlinesize != pic->linesize[1])){ |
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av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed (stride changed)\n");
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s->avctx->release_buffer(s->avctx, (AVFrame*)pic); |
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return -1; |
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} |
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if(pic->linesize[1] != pic->linesize[2]){ |
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av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed (uv stride mismatch)\n");
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s->avctx->release_buffer(s->avctx, (AVFrame*)pic); |
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return -1; |
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} |
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s->linesize = pic->linesize[0];
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s->uvlinesize= pic->linesize[1];
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} |
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if(pic->qscale_table==NULL){ |
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if (s->encoding) {
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CHECKED_ALLOCZ(pic->mb_var , mb_array_size * sizeof(int16_t))
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CHECKED_ALLOCZ(pic->mc_mb_var, mb_array_size * sizeof(int16_t))
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CHECKED_ALLOCZ(pic->mb_mean , mb_array_size * sizeof(int8_t))
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} |
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CHECKED_ALLOCZ(pic->mbskip_table , mb_array_size * sizeof(uint8_t)+2) //the +2 is for the slice end check |
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CHECKED_ALLOCZ(pic->qscale_table , mb_array_size * sizeof(uint8_t))
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CHECKED_ALLOCZ(pic->mb_type_base , (big_mb_num + s->mb_stride) * sizeof(uint32_t))
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pic->mb_type= pic->mb_type_base + 2*s->mb_stride+1; |
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if(s->out_format == FMT_H264){
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for(i=0; i<2; i++){ |
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CHECKED_ALLOCZ(pic->motion_val_base[i], 2 * (b4_array_size+4) * sizeof(int16_t)) |
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pic->motion_val[i]= pic->motion_val_base[i]+4;
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CHECKED_ALLOCZ(pic->ref_index[i], b8_array_size * sizeof(uint8_t))
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} |
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pic->motion_subsample_log2= 2;
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}else if(s->out_format == FMT_H263 || s->encoding || (s->avctx->debug&FF_DEBUG_MV) || (s->avctx->debug_mv)){ |
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for(i=0; i<2; i++){ |
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CHECKED_ALLOCZ(pic->motion_val_base[i], 2 * (b8_array_size+4) * sizeof(int16_t)) |
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pic->motion_val[i]= pic->motion_val_base[i]+4;
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CHECKED_ALLOCZ(pic->ref_index[i], b8_array_size * sizeof(uint8_t))
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} |
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pic->motion_subsample_log2= 3;
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} |
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if(s->avctx->debug&FF_DEBUG_DCT_COEFF) {
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CHECKED_ALLOCZ(pic->dct_coeff, 64 * mb_array_size * sizeof(DCTELEM)*6) |
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} |
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pic->qstride= s->mb_stride; |
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CHECKED_ALLOCZ(pic->pan_scan , 1 * sizeof(AVPanScan)) |
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} |
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/* It might be nicer if the application would keep track of these
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* but it would require an API change. */
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memmove(s->prev_pict_types+1, s->prev_pict_types, PREV_PICT_TYPES_BUFFER_SIZE-1); |
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s->prev_pict_types[0]= s->dropable ? FF_B_TYPE : s->pict_type;
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if(pic->age < PREV_PICT_TYPES_BUFFER_SIZE && s->prev_pict_types[pic->age] == FF_B_TYPE)
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pic->age= INT_MAX; // Skipped MBs in B-frames are quite rare in MPEG-1/2 and it is a bit tricky to skip them anyway.
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return 0; |
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fail: //for the CHECKED_ALLOCZ macro |
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if(r>=0) |
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s->avctx->release_buffer(s->avctx, (AVFrame*)pic); |
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return -1; |
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} |
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/**
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* deallocates a picture
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*/
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static void free_picture(MpegEncContext *s, Picture *pic){ |
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int i;
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if(pic->data[0] && pic->type!=FF_BUFFER_TYPE_SHARED){ |
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s->avctx->release_buffer(s->avctx, (AVFrame*)pic); |
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} |
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av_freep(&pic->mb_var); |
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av_freep(&pic->mc_mb_var); |
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av_freep(&pic->mb_mean); |
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av_freep(&pic->mbskip_table); |
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av_freep(&pic->qscale_table); |
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av_freep(&pic->mb_type_base); |
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av_freep(&pic->dct_coeff); |
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av_freep(&pic->pan_scan); |
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pic->mb_type= NULL;
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for(i=0; i<2; i++){ |
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av_freep(&pic->motion_val_base[i]); |
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av_freep(&pic->ref_index[i]); |
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} |
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if(pic->type == FF_BUFFER_TYPE_SHARED){
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for(i=0; i<4; i++){ |
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pic->base[i]= |
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pic->data[i]= NULL;
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} |
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pic->type= 0;
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} |
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} |
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static int init_duplicate_context(MpegEncContext *s, MpegEncContext *base){ |
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int i;
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// edge emu needs blocksize + filter length - 1 (=17x17 for halfpel / 21x21 for h264)
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CHECKED_ALLOCZ(s->allocated_edge_emu_buffer, (s->width+64)*2*21*2); //(width + edge + align)*interlaced*MBsize*tolerance |
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s->edge_emu_buffer= s->allocated_edge_emu_buffer + (s->width+64)*2*21; |
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//FIXME should be linesize instead of s->width*2 but that is not known before get_buffer()
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CHECKED_ALLOCZ(s->me.scratchpad, (s->width+64)*4*16*2*sizeof(uint8_t)) |
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s->rd_scratchpad= s->me.scratchpad; |
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s->b_scratchpad= s->me.scratchpad; |
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s->obmc_scratchpad= s->me.scratchpad + 16;
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if (s->encoding) {
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CHECKED_ALLOCZ(s->me.map , ME_MAP_SIZE*sizeof(uint32_t))
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CHECKED_ALLOCZ(s->me.score_map, ME_MAP_SIZE*sizeof(uint32_t))
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if(s->avctx->noise_reduction){
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CHECKED_ALLOCZ(s->dct_error_sum, 2 * 64 * sizeof(int)) |
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} |
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} |
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CHECKED_ALLOCZ(s->blocks, 64*12*2 * sizeof(DCTELEM)) |
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s->block= s->blocks[0];
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|
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for(i=0;i<12;i++){ |
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s->pblocks[i] = (short *)(&s->block[i]);
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} |
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return 0; |
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fail:
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return -1; //free() through MPV_common_end() |
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} |
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|
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static void free_duplicate_context(MpegEncContext *s){ |
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if(s==NULL) return; |
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av_freep(&s->allocated_edge_emu_buffer); s->edge_emu_buffer= NULL;
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av_freep(&s->me.scratchpad); |
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s->rd_scratchpad= |
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s->b_scratchpad= |
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s->obmc_scratchpad= NULL;
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|
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av_freep(&s->dct_error_sum); |
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av_freep(&s->me.map); |
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av_freep(&s->me.score_map); |
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av_freep(&s->blocks); |
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s->block= NULL;
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} |
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|
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static void backup_duplicate_context(MpegEncContext *bak, MpegEncContext *src){ |
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#define COPY(a) bak->a= src->a
|
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COPY(allocated_edge_emu_buffer); |
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COPY(edge_emu_buffer); |
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COPY(me.scratchpad); |
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COPY(rd_scratchpad); |
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COPY(b_scratchpad); |
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COPY(obmc_scratchpad); |
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COPY(me.map); |
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COPY(me.score_map); |
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COPY(blocks); |
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COPY(block); |
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COPY(start_mb_y); |
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COPY(end_mb_y); |
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COPY(me.map_generation); |
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COPY(pb); |
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COPY(dct_error_sum); |
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COPY(dct_count[0]);
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COPY(dct_count[1]);
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#undef COPY
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} |
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|
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void ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src){
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MpegEncContext bak; |
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int i;
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//FIXME copy only needed parts
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//START_TIMER
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backup_duplicate_context(&bak, dst); |
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memcpy(dst, src, sizeof(MpegEncContext));
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backup_duplicate_context(dst, &bak); |
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for(i=0;i<12;i++){ |
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dst->pblocks[i] = (short *)(&dst->block[i]);
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} |
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//STOP_TIMER("update_duplicate_context") //about 10k cycles / 0.01 sec for 1000frames on 1ghz with 2 threads
|
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} |
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|
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/**
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* sets the given MpegEncContext to common defaults (same for encoding and decoding).
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* the changed fields will not depend upon the prior state of the MpegEncContext.
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*/
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void MPV_common_defaults(MpegEncContext *s){
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s->y_dc_scale_table= |
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s->c_dc_scale_table= ff_mpeg1_dc_scale_table; |
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s->chroma_qscale_table= ff_default_chroma_qscale_table; |
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s->progressive_frame= 1;
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s->progressive_sequence= 1;
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s->picture_structure= PICT_FRAME; |
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|
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s->coded_picture_number = 0;
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s->picture_number = 0;
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s->input_picture_number = 0;
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|
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s->picture_in_gop_number = 0;
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|
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s->f_code = 1;
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s->b_code = 1;
|
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} |
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|
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/**
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* sets the given MpegEncContext to defaults for decoding.
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* the changed fields will not depend upon the prior state of the MpegEncContext.
|
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*/
|
| 391 |
void MPV_decode_defaults(MpegEncContext *s){
|
| 392 |
MPV_common_defaults(s); |
| 393 |
} |
| 394 |
|
| 395 |
/**
|
| 396 |
* init common structure for both encoder and decoder.
|
| 397 |
* this assumes that some variables like width/height are already set
|
| 398 |
*/
|
| 399 |
int MPV_common_init(MpegEncContext *s)
|
| 400 |
{
|
| 401 |
int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y, threads;
|
| 402 |
|
| 403 |
s->mb_height = (s->height + 15) / 16; |
| 404 |
|
| 405 |
if(s->avctx->thread_count > MAX_THREADS || (s->avctx->thread_count > s->mb_height && s->mb_height)){
|
| 406 |
av_log(s->avctx, AV_LOG_ERROR, "too many threads\n");
|
| 407 |
return -1; |
| 408 |
} |
| 409 |
|
| 410 |
if((s->width || s->height) && avcodec_check_dimensions(s->avctx, s->width, s->height))
|
| 411 |
return -1; |
| 412 |
|
| 413 |
dsputil_init(&s->dsp, s->avctx); |
| 414 |
ff_dct_common_init(s); |
| 415 |
|
| 416 |
s->flags= s->avctx->flags; |
| 417 |
s->flags2= s->avctx->flags2; |
| 418 |
|
| 419 |
s->mb_width = (s->width + 15) / 16; |
| 420 |
s->mb_stride = s->mb_width + 1;
|
| 421 |
s->b8_stride = s->mb_width*2 + 1; |
| 422 |
s->b4_stride = s->mb_width*4 + 1; |
| 423 |
mb_array_size= s->mb_height * s->mb_stride; |
| 424 |
mv_table_size= (s->mb_height+2) * s->mb_stride + 1; |
| 425 |
|
| 426 |
/* set chroma shifts */
|
| 427 |
avcodec_get_chroma_sub_sample(s->avctx->pix_fmt,&(s->chroma_x_shift), |
| 428 |
&(s->chroma_y_shift) ); |
| 429 |
|
| 430 |
/* set default edge pos, will be overriden in decode_header if needed */
|
| 431 |
s->h_edge_pos= s->mb_width*16;
|
| 432 |
s->v_edge_pos= s->mb_height*16;
|
| 433 |
|
| 434 |
s->mb_num = s->mb_width * s->mb_height; |
| 435 |
|
| 436 |
s->block_wrap[0]=
|
| 437 |
s->block_wrap[1]=
|
| 438 |
s->block_wrap[2]=
|
| 439 |
s->block_wrap[3]= s->b8_stride;
|
| 440 |
s->block_wrap[4]=
|
| 441 |
s->block_wrap[5]= s->mb_stride;
|
| 442 |
|
| 443 |
y_size = s->b8_stride * (2 * s->mb_height + 1); |
| 444 |
c_size = s->mb_stride * (s->mb_height + 1);
|
| 445 |
yc_size = y_size + 2 * c_size;
|
| 446 |
|
| 447 |
/* convert fourcc to upper case */
|
| 448 |
s->codec_tag= toupper( s->avctx->codec_tag &0xFF)
|
| 449 |
+ (toupper((s->avctx->codec_tag>>8 )&0xFF)<<8 ) |
| 450 |
+ (toupper((s->avctx->codec_tag>>16)&0xFF)<<16) |
| 451 |
+ (toupper((s->avctx->codec_tag>>24)&0xFF)<<24); |
| 452 |
|
| 453 |
s->stream_codec_tag= toupper( s->avctx->stream_codec_tag &0xFF)
|
| 454 |
+ (toupper((s->avctx->stream_codec_tag>>8 )&0xFF)<<8 ) |
| 455 |
+ (toupper((s->avctx->stream_codec_tag>>16)&0xFF)<<16) |
| 456 |
+ (toupper((s->avctx->stream_codec_tag>>24)&0xFF)<<24); |
| 457 |
|
| 458 |
s->avctx->coded_frame= (AVFrame*)&s->current_picture; |
| 459 |
|
| 460 |
CHECKED_ALLOCZ(s->mb_index2xy, (s->mb_num+1)*sizeof(int)) //error ressilience code looks cleaner with this |
| 461 |
for(y=0; y<s->mb_height; y++){ |
| 462 |
for(x=0; x<s->mb_width; x++){ |
| 463 |
s->mb_index2xy[ x + y*s->mb_width ] = x + y*s->mb_stride; |
| 464 |
} |
| 465 |
} |
| 466 |
s->mb_index2xy[ s->mb_height*s->mb_width ] = (s->mb_height-1)*s->mb_stride + s->mb_width; //FIXME really needed? |
| 467 |
|
| 468 |
if (s->encoding) {
|
| 469 |
/* Allocate MV tables */
|
| 470 |
CHECKED_ALLOCZ(s->p_mv_table_base , mv_table_size * 2 * sizeof(int16_t)) |
| 471 |
CHECKED_ALLOCZ(s->b_forw_mv_table_base , mv_table_size * 2 * sizeof(int16_t)) |
| 472 |
CHECKED_ALLOCZ(s->b_back_mv_table_base , mv_table_size * 2 * sizeof(int16_t)) |
| 473 |
CHECKED_ALLOCZ(s->b_bidir_forw_mv_table_base , mv_table_size * 2 * sizeof(int16_t)) |
| 474 |
CHECKED_ALLOCZ(s->b_bidir_back_mv_table_base , mv_table_size * 2 * sizeof(int16_t)) |
| 475 |
CHECKED_ALLOCZ(s->b_direct_mv_table_base , mv_table_size * 2 * sizeof(int16_t)) |
| 476 |
s->p_mv_table = s->p_mv_table_base + s->mb_stride + 1;
|
| 477 |
s->b_forw_mv_table = s->b_forw_mv_table_base + s->mb_stride + 1;
|
| 478 |
s->b_back_mv_table = s->b_back_mv_table_base + s->mb_stride + 1;
|
| 479 |
s->b_bidir_forw_mv_table= s->b_bidir_forw_mv_table_base + s->mb_stride + 1;
|
| 480 |
s->b_bidir_back_mv_table= s->b_bidir_back_mv_table_base + s->mb_stride + 1;
|
| 481 |
s->b_direct_mv_table = s->b_direct_mv_table_base + s->mb_stride + 1;
|
| 482 |
|
| 483 |
if(s->msmpeg4_version){
|
| 484 |
CHECKED_ALLOCZ(s->ac_stats, 2*2*(MAX_LEVEL+1)*(MAX_RUN+1)*2*sizeof(int)); |
| 485 |
} |
| 486 |
CHECKED_ALLOCZ(s->avctx->stats_out, 256);
|
| 487 |
|
| 488 |
/* Allocate MB type table */
|
| 489 |
CHECKED_ALLOCZ(s->mb_type , mb_array_size * sizeof(uint16_t)) //needed for encoding |
| 490 |
|
| 491 |
CHECKED_ALLOCZ(s->lambda_table, mb_array_size * sizeof(int)) |
| 492 |
|
| 493 |
CHECKED_ALLOCZ(s->q_intra_matrix, 64*32 * sizeof(int)) |
| 494 |
CHECKED_ALLOCZ(s->q_inter_matrix, 64*32 * sizeof(int)) |
| 495 |
CHECKED_ALLOCZ(s->q_intra_matrix16, 64*32*2 * sizeof(uint16_t)) |
| 496 |
CHECKED_ALLOCZ(s->q_inter_matrix16, 64*32*2 * sizeof(uint16_t)) |
| 497 |
CHECKED_ALLOCZ(s->input_picture, MAX_PICTURE_COUNT * sizeof(Picture*))
|
| 498 |
CHECKED_ALLOCZ(s->reordered_input_picture, MAX_PICTURE_COUNT * sizeof(Picture*))
|
| 499 |
|
| 500 |
if(s->avctx->noise_reduction){
|
| 501 |
CHECKED_ALLOCZ(s->dct_offset, 2 * 64 * sizeof(uint16_t)) |
| 502 |
} |
| 503 |
} |
| 504 |
CHECKED_ALLOCZ(s->picture, MAX_PICTURE_COUNT * sizeof(Picture))
|
| 505 |
|
| 506 |
CHECKED_ALLOCZ(s->error_status_table, mb_array_size*sizeof(uint8_t))
|
| 507 |
|
| 508 |
if(s->codec_id==CODEC_ID_MPEG4 || (s->flags & CODEC_FLAG_INTERLACED_ME)){
|
| 509 |
/* interlaced direct mode decoding tables */
|
| 510 |
for(i=0; i<2; i++){ |
| 511 |
int j, k;
|
| 512 |
for(j=0; j<2; j++){ |
| 513 |
for(k=0; k<2; k++){ |
| 514 |
CHECKED_ALLOCZ(s->b_field_mv_table_base[i][j][k] , mv_table_size * 2 * sizeof(int16_t)) |
| 515 |
s->b_field_mv_table[i][j][k] = s->b_field_mv_table_base[i][j][k] + s->mb_stride + 1;
|
| 516 |
} |
| 517 |
CHECKED_ALLOCZ(s->b_field_select_table[i][j] , mb_array_size * 2 * sizeof(uint8_t)) |
| 518 |
CHECKED_ALLOCZ(s->p_field_mv_table_base[i][j] , mv_table_size * 2 * sizeof(int16_t)) |
| 519 |
s->p_field_mv_table[i][j] = s->p_field_mv_table_base[i][j] + s->mb_stride + 1;
|
| 520 |
} |
| 521 |
CHECKED_ALLOCZ(s->p_field_select_table[i] , mb_array_size * 2 * sizeof(uint8_t)) |
| 522 |
} |
| 523 |
} |
| 524 |
if (s->out_format == FMT_H263) {
|
| 525 |
/* ac values */
|
| 526 |
CHECKED_ALLOCZ(s->ac_val_base, yc_size * sizeof(int16_t) * 16); |
| 527 |
s->ac_val[0] = s->ac_val_base + s->b8_stride + 1; |
| 528 |
s->ac_val[1] = s->ac_val_base + y_size + s->mb_stride + 1; |
| 529 |
s->ac_val[2] = s->ac_val[1] + c_size; |
| 530 |
|
| 531 |
/* cbp values */
|
| 532 |
CHECKED_ALLOCZ(s->coded_block_base, y_size); |
| 533 |
s->coded_block= s->coded_block_base + s->b8_stride + 1;
|
| 534 |
|
| 535 |
/* cbp, ac_pred, pred_dir */
|
| 536 |
CHECKED_ALLOCZ(s->cbp_table , mb_array_size * sizeof(uint8_t))
|
| 537 |
CHECKED_ALLOCZ(s->pred_dir_table, mb_array_size * sizeof(uint8_t))
|
| 538 |
} |
| 539 |
|
| 540 |
if (s->h263_pred || s->h263_plus || !s->encoding) {
|
| 541 |
/* dc values */
|
| 542 |
//MN: we need these for error resilience of intra-frames
|
| 543 |
CHECKED_ALLOCZ(s->dc_val_base, yc_size * sizeof(int16_t));
|
| 544 |
s->dc_val[0] = s->dc_val_base + s->b8_stride + 1; |
| 545 |
s->dc_val[1] = s->dc_val_base + y_size + s->mb_stride + 1; |
| 546 |
s->dc_val[2] = s->dc_val[1] + c_size; |
| 547 |
for(i=0;i<yc_size;i++) |
| 548 |
s->dc_val_base[i] = 1024;
|
| 549 |
} |
| 550 |
|
| 551 |
/* which mb is a intra block */
|
| 552 |
CHECKED_ALLOCZ(s->mbintra_table, mb_array_size); |
| 553 |
memset(s->mbintra_table, 1, mb_array_size);
|
| 554 |
|
| 555 |
/* init macroblock skip table */
|
| 556 |
CHECKED_ALLOCZ(s->mbskip_table, mb_array_size+2);
|
| 557 |
//Note the +1 is for a quicker mpeg4 slice_end detection
|
| 558 |
CHECKED_ALLOCZ(s->prev_pict_types, PREV_PICT_TYPES_BUFFER_SIZE); |
| 559 |
|
| 560 |
s->parse_context.state= -1;
|
| 561 |
if((s->avctx->debug&(FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) || (s->avctx->debug_mv)){
|
| 562 |
s->visualization_buffer[0] = av_malloc((s->mb_width*16 + 2*EDGE_WIDTH) * s->mb_height*16 + 2*EDGE_WIDTH); |
| 563 |
s->visualization_buffer[1] = av_malloc((s->mb_width*8 + EDGE_WIDTH) * s->mb_height*8 + EDGE_WIDTH); |
| 564 |
s->visualization_buffer[2] = av_malloc((s->mb_width*8 + EDGE_WIDTH) * s->mb_height*8 + EDGE_WIDTH); |
| 565 |
} |
| 566 |
|
| 567 |
s->context_initialized = 1;
|
| 568 |
|
| 569 |
s->thread_context[0]= s;
|
| 570 |
threads = s->avctx->thread_count; |
| 571 |
|
| 572 |
for(i=1; i<threads; i++){ |
| 573 |
s->thread_context[i]= av_malloc(sizeof(MpegEncContext));
|
| 574 |
memcpy(s->thread_context[i], s, sizeof(MpegEncContext));
|
| 575 |
} |
| 576 |
|
| 577 |
for(i=0; i<threads; i++){ |
| 578 |
if(init_duplicate_context(s->thread_context[i], s) < 0) |
| 579 |
goto fail;
|
| 580 |
s->thread_context[i]->start_mb_y= (s->mb_height*(i ) + s->avctx->thread_count/2) / s->avctx->thread_count;
|
| 581 |
s->thread_context[i]->end_mb_y = (s->mb_height*(i+1) + s->avctx->thread_count/2) / s->avctx->thread_count; |
| 582 |
} |
| 583 |
|
| 584 |
return 0; |
| 585 |
fail:
|
| 586 |
MPV_common_end(s); |
| 587 |
return -1; |
| 588 |
} |
| 589 |
|
| 590 |
/* init common structure for both encoder and decoder */
|
| 591 |
void MPV_common_end(MpegEncContext *s)
|
| 592 |
{
|
| 593 |
int i, j, k;
|
| 594 |
|
| 595 |
for(i=0; i<s->avctx->thread_count; i++){ |
| 596 |
free_duplicate_context(s->thread_context[i]); |
| 597 |
} |
| 598 |
for(i=1; i<s->avctx->thread_count; i++){ |
| 599 |
av_freep(&s->thread_context[i]); |
| 600 |
} |
| 601 |
|
| 602 |
av_freep(&s->parse_context.buffer); |
| 603 |
s->parse_context.buffer_size=0;
|
| 604 |
|
| 605 |
av_freep(&s->mb_type); |
| 606 |
av_freep(&s->p_mv_table_base); |
| 607 |
av_freep(&s->b_forw_mv_table_base); |
| 608 |
av_freep(&s->b_back_mv_table_base); |
| 609 |
av_freep(&s->b_bidir_forw_mv_table_base); |
| 610 |
av_freep(&s->b_bidir_back_mv_table_base); |
| 611 |
av_freep(&s->b_direct_mv_table_base); |
| 612 |
s->p_mv_table= NULL;
|
| 613 |
s->b_forw_mv_table= NULL;
|
| 614 |
s->b_back_mv_table= NULL;
|
| 615 |
s->b_bidir_forw_mv_table= NULL;
|
| 616 |
s->b_bidir_back_mv_table= NULL;
|
| 617 |
s->b_direct_mv_table= NULL;
|
| 618 |
for(i=0; i<2; i++){ |
| 619 |
for(j=0; j<2; j++){ |
| 620 |
for(k=0; k<2; k++){ |
| 621 |
av_freep(&s->b_field_mv_table_base[i][j][k]); |
| 622 |
s->b_field_mv_table[i][j][k]=NULL;
|
| 623 |
} |
| 624 |
av_freep(&s->b_field_select_table[i][j]); |
| 625 |
av_freep(&s->p_field_mv_table_base[i][j]); |
| 626 |
s->p_field_mv_table[i][j]=NULL;
|
| 627 |
} |
| 628 |
av_freep(&s->p_field_select_table[i]); |
| 629 |
} |
| 630 |
|
| 631 |
av_freep(&s->dc_val_base); |
| 632 |
av_freep(&s->ac_val_base); |
| 633 |
av_freep(&s->coded_block_base); |
| 634 |
av_freep(&s->mbintra_table); |
| 635 |
av_freep(&s->cbp_table); |
| 636 |
av_freep(&s->pred_dir_table); |
| 637 |
|
| 638 |
av_freep(&s->mbskip_table); |
| 639 |
av_freep(&s->prev_pict_types); |
| 640 |
av_freep(&s->bitstream_buffer); |
| 641 |
s->allocated_bitstream_buffer_size=0;
|
| 642 |
|
| 643 |
av_freep(&s->avctx->stats_out); |
| 644 |
av_freep(&s->ac_stats); |
| 645 |
av_freep(&s->error_status_table); |
| 646 |
av_freep(&s->mb_index2xy); |
| 647 |
av_freep(&s->lambda_table); |
| 648 |
av_freep(&s->q_intra_matrix); |
| 649 |
av_freep(&s->q_inter_matrix); |
| 650 |
av_freep(&s->q_intra_matrix16); |
| 651 |
av_freep(&s->q_inter_matrix16); |
| 652 |
av_freep(&s->input_picture); |
| 653 |
av_freep(&s->reordered_input_picture); |
| 654 |
av_freep(&s->dct_offset); |
| 655 |
|
| 656 |
if(s->picture){
|
| 657 |
for(i=0; i<MAX_PICTURE_COUNT; i++){ |
| 658 |
free_picture(s, &s->picture[i]); |
| 659 |
} |
| 660 |
} |
| 661 |
av_freep(&s->picture); |
| 662 |
s->context_initialized = 0;
|
| 663 |
s->last_picture_ptr= |
| 664 |
s->next_picture_ptr= |
| 665 |
s->current_picture_ptr= NULL;
|
| 666 |
s->linesize= s->uvlinesize= 0;
|
| 667 |
|
| 668 |
for(i=0; i<3; i++) |
| 669 |
av_freep(&s->visualization_buffer[i]); |
| 670 |
|
| 671 |
avcodec_default_free_buffers(s->avctx); |
| 672 |
} |
| 673 |
|
| 674 |
void init_rl(RLTable *rl, uint8_t static_store[2][2*MAX_RUN + MAX_LEVEL + 3]) |
| 675 |
{
|
| 676 |
int8_t max_level[MAX_RUN+1], max_run[MAX_LEVEL+1]; |
| 677 |
uint8_t index_run[MAX_RUN+1];
|
| 678 |
int last, run, level, start, end, i;
|
| 679 |
|
| 680 |
/* If table is static, we can quit if rl->max_level[0] is not NULL */
|
| 681 |
if(static_store && rl->max_level[0]) |
| 682 |
return;
|
| 683 |
|
| 684 |
/* compute max_level[], max_run[] and index_run[] */
|
| 685 |
for(last=0;last<2;last++) { |
| 686 |
if (last == 0) { |
| 687 |
start = 0;
|
| 688 |
end = rl->last; |
| 689 |
} else {
|
| 690 |
start = rl->last; |
| 691 |
end = rl->n; |
| 692 |
} |
| 693 |
|
| 694 |
memset(max_level, 0, MAX_RUN + 1); |
| 695 |
memset(max_run, 0, MAX_LEVEL + 1); |
| 696 |
memset(index_run, rl->n, MAX_RUN + 1);
|
| 697 |
for(i=start;i<end;i++) {
|
| 698 |
run = rl->table_run[i]; |
| 699 |
level = rl->table_level[i]; |
| 700 |
if (index_run[run] == rl->n)
|
| 701 |
index_run[run] = i; |
| 702 |
if (level > max_level[run])
|
| 703 |
max_level[run] = level; |
| 704 |
if (run > max_run[level])
|
| 705 |
max_run[level] = run; |
| 706 |
} |
| 707 |
if(static_store)
|
| 708 |
rl->max_level[last] = static_store[last]; |
| 709 |
else
|
| 710 |
rl->max_level[last] = av_malloc(MAX_RUN + 1);
|
| 711 |
memcpy(rl->max_level[last], max_level, MAX_RUN + 1);
|
| 712 |
if(static_store)
|
| 713 |
rl->max_run[last] = static_store[last] + MAX_RUN + 1;
|
| 714 |
else
|
| 715 |
rl->max_run[last] = av_malloc(MAX_LEVEL + 1);
|
| 716 |
memcpy(rl->max_run[last], max_run, MAX_LEVEL + 1);
|
| 717 |
if(static_store)
|
| 718 |
rl->index_run[last] = static_store[last] + MAX_RUN + MAX_LEVEL + 2;
|
| 719 |
else
|
| 720 |
rl->index_run[last] = av_malloc(MAX_RUN + 1);
|
| 721 |
memcpy(rl->index_run[last], index_run, MAX_RUN + 1);
|
| 722 |
} |
| 723 |
} |
| 724 |
|
| 725 |
void init_vlc_rl(RLTable *rl)
|
| 726 |
{
|
| 727 |
int i, q;
|
| 728 |
|
| 729 |
for(q=0; q<32; q++){ |
| 730 |
int qmul= q*2; |
| 731 |
int qadd= (q-1)|1; |
| 732 |
|
| 733 |
if(q==0){ |
| 734 |
qmul=1;
|
| 735 |
qadd=0;
|
| 736 |
} |
| 737 |
for(i=0; i<rl->vlc.table_size; i++){ |
| 738 |
int code= rl->vlc.table[i][0]; |
| 739 |
int len = rl->vlc.table[i][1]; |
| 740 |
int level, run;
|
| 741 |
|
| 742 |
if(len==0){ // illegal code |
| 743 |
run= 66;
|
| 744 |
level= MAX_LEVEL; |
| 745 |
}else if(len<0){ //more bits needed |
| 746 |
run= 0;
|
| 747 |
level= code; |
| 748 |
}else{
|
| 749 |
if(code==rl->n){ //esc |
| 750 |
run= 66;
|
| 751 |
level= 0;
|
| 752 |
}else{
|
| 753 |
run= rl->table_run [code] + 1;
|
| 754 |
level= rl->table_level[code] * qmul + qadd; |
| 755 |
if(code >= rl->last) run+=192; |
| 756 |
} |
| 757 |
} |
| 758 |
rl->rl_vlc[q][i].len= len; |
| 759 |
rl->rl_vlc[q][i].level= level; |
| 760 |
rl->rl_vlc[q][i].run= run; |
| 761 |
} |
| 762 |
} |
| 763 |
} |
| 764 |
|
| 765 |
int ff_find_unused_picture(MpegEncContext *s, int shared){ |
| 766 |
int i;
|
| 767 |
|
| 768 |
if(shared){
|
| 769 |
for(i=0; i<MAX_PICTURE_COUNT; i++){ |
| 770 |
if(s->picture[i].data[0]==NULL && s->picture[i].type==0) return i; |
| 771 |
} |
| 772 |
}else{
|
| 773 |
for(i=0; i<MAX_PICTURE_COUNT; i++){ |
| 774 |
if(s->picture[i].data[0]==NULL && s->picture[i].type!=0) return i; //FIXME |
| 775 |
} |
| 776 |
for(i=0; i<MAX_PICTURE_COUNT; i++){ |
| 777 |
if(s->picture[i].data[0]==NULL) return i; |
| 778 |
} |
| 779 |
} |
| 780 |
|
| 781 |
av_log(s->avctx, AV_LOG_FATAL, "Internal error, picture buffer overflow\n");
|
| 782 |
/* We could return -1, but the codec would crash trying to draw into a
|
| 783 |
* non-existing frame anyway. This is safer than waiting for a random crash.
|
| 784 |
* Also the return of this is never useful, an encoder must only allocate
|
| 785 |
* as much as allowed in the specification. This has no relationship to how
|
| 786 |
* much libavcodec could allocate (and MAX_PICTURE_COUNT is always large
|
| 787 |
* enough for such valid streams).
|
| 788 |
* Plus, a decoder has to check stream validity and remove frames if too
|
| 789 |
* many reference frames are around. Waiting for "OOM" is not correct at
|
| 790 |
* all. Similarly, missing reference frames have to be replaced by
|
| 791 |
* interpolated/MC frames, anything else is a bug in the codec ...
|
| 792 |
*/
|
| 793 |
abort(); |
| 794 |
return -1; |
| 795 |
} |
| 796 |
|
| 797 |
static void update_noise_reduction(MpegEncContext *s){ |
| 798 |
int intra, i;
|
| 799 |
|
| 800 |
for(intra=0; intra<2; intra++){ |
| 801 |
if(s->dct_count[intra] > (1<<16)){ |
| 802 |
for(i=0; i<64; i++){ |
| 803 |
s->dct_error_sum[intra][i] >>=1;
|
| 804 |
} |
| 805 |
s->dct_count[intra] >>= 1;
|
| 806 |
} |
| 807 |
|
| 808 |
for(i=0; i<64; i++){ |
| 809 |
s->dct_offset[intra][i]= (s->avctx->noise_reduction * s->dct_count[intra] + s->dct_error_sum[intra][i]/2) / (s->dct_error_sum[intra][i]+1); |
| 810 |
} |
| 811 |
} |
| 812 |
} |
| 813 |
|
| 814 |
/**
|
| 815 |
* generic function for encode/decode called after coding/decoding the header and before a frame is coded/decoded
|
| 816 |
*/
|
| 817 |
int MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx)
|
| 818 |
{
|
| 819 |
int i;
|
| 820 |
AVFrame *pic; |
| 821 |
s->mb_skipped = 0;
|
| 822 |
|
| 823 |
assert(s->last_picture_ptr==NULL || s->out_format != FMT_H264 || s->codec_id == CODEC_ID_SVQ3);
|
| 824 |
|
| 825 |
/* mark&release old frames */
|
| 826 |
if (s->pict_type != FF_B_TYPE && s->last_picture_ptr && s->last_picture_ptr != s->next_picture_ptr && s->last_picture_ptr->data[0]) { |
| 827 |
if(s->out_format != FMT_H264 || s->codec_id == CODEC_ID_SVQ3){
|
| 828 |
avctx->release_buffer(avctx, (AVFrame*)s->last_picture_ptr); |
| 829 |
|
| 830 |
/* release forgotten pictures */
|
| 831 |
/* if(mpeg124/h263) */
|
| 832 |
if(!s->encoding){
|
| 833 |
for(i=0; i<MAX_PICTURE_COUNT; i++){ |
| 834 |
if(s->picture[i].data[0] && &s->picture[i] != s->next_picture_ptr && s->picture[i].reference){ |
| 835 |
av_log(avctx, AV_LOG_ERROR, "releasing zombie picture\n");
|
| 836 |
avctx->release_buffer(avctx, (AVFrame*)&s->picture[i]); |
| 837 |
} |
| 838 |
} |
| 839 |
} |
| 840 |
} |
| 841 |
} |
| 842 |
alloc:
|
| 843 |
if(!s->encoding){
|
| 844 |
/* release non reference frames */
|
| 845 |
for(i=0; i<MAX_PICTURE_COUNT; i++){ |
| 846 |
if(s->picture[i].data[0] && !s->picture[i].reference /*&& s->picture[i].type!=FF_BUFFER_TYPE_SHARED*/){ |
| 847 |
s->avctx->release_buffer(s->avctx, (AVFrame*)&s->picture[i]); |
| 848 |
} |
| 849 |
} |
| 850 |
|
| 851 |
if(s->current_picture_ptr && s->current_picture_ptr->data[0]==NULL) |
| 852 |
pic= (AVFrame*)s->current_picture_ptr; //we already have a unused image (maybe it was set before reading the header)
|
| 853 |
else{
|
| 854 |
i= ff_find_unused_picture(s, 0);
|
| 855 |
pic= (AVFrame*)&s->picture[i]; |
| 856 |
} |
| 857 |
|
| 858 |
pic->reference= 0;
|
| 859 |
if (!s->dropable){
|
| 860 |
if (s->codec_id == CODEC_ID_H264)
|
| 861 |
pic->reference = s->picture_structure; |
| 862 |
else if (s->pict_type != FF_B_TYPE) |
| 863 |
pic->reference = 3;
|
| 864 |
} |
| 865 |
|
| 866 |
pic->coded_picture_number= s->coded_picture_number++; |
| 867 |
|
| 868 |
if( alloc_picture(s, (Picture*)pic, 0) < 0) |
| 869 |
return -1; |
| 870 |
|
| 871 |
s->current_picture_ptr= (Picture*)pic; |
| 872 |
s->current_picture_ptr->top_field_first= s->top_field_first; //FIXME use only the vars from current_pic
|
| 873 |
s->current_picture_ptr->interlaced_frame= !s->progressive_frame && !s->progressive_sequence; |
| 874 |
} |
| 875 |
|
| 876 |
s->current_picture_ptr->pict_type= s->pict_type; |
| 877 |
// if(s->flags && CODEC_FLAG_QSCALE)
|
| 878 |
// s->current_picture_ptr->quality= s->new_picture_ptr->quality;
|
| 879 |
s->current_picture_ptr->key_frame= s->pict_type == FF_I_TYPE; |
| 880 |
|
| 881 |
copy_picture(&s->current_picture, s->current_picture_ptr); |
| 882 |
|
| 883 |
if (s->pict_type != FF_B_TYPE) {
|
| 884 |
s->last_picture_ptr= s->next_picture_ptr; |
| 885 |
if(!s->dropable)
|
| 886 |
s->next_picture_ptr= s->current_picture_ptr; |
| 887 |
} |
| 888 |
/* av_log(s->avctx, AV_LOG_DEBUG, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n", s->last_picture_ptr, s->next_picture_ptr,s->current_picture_ptr,
|
| 889 |
s->last_picture_ptr ? s->last_picture_ptr->data[0] : NULL,
|
| 890 |
s->next_picture_ptr ? s->next_picture_ptr->data[0] : NULL,
|
| 891 |
s->current_picture_ptr ? s->current_picture_ptr->data[0] : NULL,
|
| 892 |
s->pict_type, s->dropable);*/
|
| 893 |
|
| 894 |
if(s->last_picture_ptr) copy_picture(&s->last_picture, s->last_picture_ptr);
|
| 895 |
if(s->next_picture_ptr) copy_picture(&s->next_picture, s->next_picture_ptr);
|
| 896 |
|
| 897 |
if(s->pict_type != FF_I_TYPE && (s->last_picture_ptr==NULL || s->last_picture_ptr->data[0]==NULL) && !s->dropable){ |
| 898 |
av_log(avctx, AV_LOG_ERROR, "warning: first frame is no keyframe\n");
|
| 899 |
assert(s->pict_type != FF_B_TYPE); //these should have been dropped if we don't have a reference
|
| 900 |
goto alloc;
|
| 901 |
} |
| 902 |
|
| 903 |
assert(s->pict_type == FF_I_TYPE || (s->last_picture_ptr && s->last_picture_ptr->data[0]));
|
| 904 |
|
| 905 |
if(s->picture_structure!=PICT_FRAME && s->out_format != FMT_H264){
|
| 906 |
int i;
|
| 907 |
for(i=0; i<4; i++){ |
| 908 |
if(s->picture_structure == PICT_BOTTOM_FIELD){
|
| 909 |
s->current_picture.data[i] += s->current_picture.linesize[i]; |
| 910 |
} |
| 911 |
s->current_picture.linesize[i] *= 2;
|
| 912 |
s->last_picture.linesize[i] *=2;
|
| 913 |
s->next_picture.linesize[i] *=2;
|
| 914 |
} |
| 915 |
} |
| 916 |
|
| 917 |
s->hurry_up= s->avctx->hurry_up; |
| 918 |
s->error_resilience= avctx->error_resilience; |
| 919 |
|
| 920 |
/* set dequantizer, we can't do it during init as it might change for mpeg4
|
| 921 |
and we can't do it in the header decode as init is not called for mpeg4 there yet */
|
| 922 |
if(s->mpeg_quant || s->codec_id == CODEC_ID_MPEG2VIDEO){
|
| 923 |
s->dct_unquantize_intra = s->dct_unquantize_mpeg2_intra; |
| 924 |
s->dct_unquantize_inter = s->dct_unquantize_mpeg2_inter; |
| 925 |
}else if(s->out_format == FMT_H263 || s->out_format == FMT_H261){ |
| 926 |
s->dct_unquantize_intra = s->dct_unquantize_h263_intra; |
| 927 |
s->dct_unquantize_inter = s->dct_unquantize_h263_inter; |
| 928 |
}else{
|
| 929 |
s->dct_unquantize_intra = s->dct_unquantize_mpeg1_intra; |
| 930 |
s->dct_unquantize_inter = s->dct_unquantize_mpeg1_inter; |
| 931 |
} |
| 932 |
|
| 933 |
if(s->dct_error_sum){
|
| 934 |
assert(s->avctx->noise_reduction && s->encoding); |
| 935 |
|
| 936 |
update_noise_reduction(s); |
| 937 |
} |
| 938 |
|
| 939 |
#ifdef HAVE_XVMC
|
| 940 |
if(s->avctx->xvmc_acceleration)
|
| 941 |
return XVMC_field_start(s, avctx);
|
| 942 |
#endif
|
| 943 |
return 0; |
| 944 |
} |
| 945 |
|
| 946 |
/* generic function for encode/decode called after a frame has been coded/decoded */
|
| 947 |
void MPV_frame_end(MpegEncContext *s)
|
| 948 |
{
|
| 949 |
int i;
|
| 950 |
/* draw edge for correct motion prediction if outside */
|
| 951 |
#ifdef HAVE_XVMC
|
| 952 |
//just to make sure that all data is rendered.
|
| 953 |
if(s->avctx->xvmc_acceleration){
|
| 954 |
XVMC_field_end(s); |
| 955 |
}else
|
| 956 |
#endif
|
| 957 |
if(s->unrestricted_mv && s->current_picture.reference && !s->intra_only && !(s->flags&CODEC_FLAG_EMU_EDGE)) {
|
| 958 |
s->dsp.draw_edges(s->current_picture.data[0], s->linesize , s->h_edge_pos , s->v_edge_pos , EDGE_WIDTH );
|
| 959 |
s->dsp.draw_edges(s->current_picture.data[1], s->uvlinesize, s->h_edge_pos>>1, s->v_edge_pos>>1, EDGE_WIDTH/2); |
| 960 |
s->dsp.draw_edges(s->current_picture.data[2], s->uvlinesize, s->h_edge_pos>>1, s->v_edge_pos>>1, EDGE_WIDTH/2); |
| 961 |
} |
| 962 |
emms_c(); |
| 963 |
|
| 964 |
s->last_pict_type = s->pict_type; |
| 965 |
s->last_lambda_for[s->pict_type]= s->current_picture_ptr->quality; |
| 966 |
if(s->pict_type!=FF_B_TYPE){
|
| 967 |
s->last_non_b_pict_type= s->pict_type; |
| 968 |
} |
| 969 |
#if 0
|
| 970 |
/* copy back current_picture variables */
|
| 971 |
for(i=0; i<MAX_PICTURE_COUNT; i++){
|
| 972 |
if(s->picture[i].data[0] == s->current_picture.data[0]){
|
| 973 |
s->picture[i]= s->current_picture;
|
| 974 |
break;
|
| 975 |
}
|
| 976 |
}
|
| 977 |
assert(i<MAX_PICTURE_COUNT);
|
| 978 |
#endif
|
| 979 |
|
| 980 |
if(s->encoding){
|
| 981 |
/* release non-reference frames */
|
| 982 |
for(i=0; i<MAX_PICTURE_COUNT; i++){ |
| 983 |
if(s->picture[i].data[0] && !s->picture[i].reference /*&& s->picture[i].type!=FF_BUFFER_TYPE_SHARED*/){ |
| 984 |
s->avctx->release_buffer(s->avctx, (AVFrame*)&s->picture[i]); |
| 985 |
} |
| 986 |
} |
| 987 |
} |
| 988 |
// clear copies, to avoid confusion
|
| 989 |
#if 0
|
| 990 |
memset(&s->last_picture, 0, sizeof(Picture));
|
| 991 |
memset(&s->next_picture, 0, sizeof(Picture));
|
| 992 |
memset(&s->current_picture, 0, sizeof(Picture));
|
| 993 |
#endif
|
| 994 |
s->avctx->coded_frame= (AVFrame*)s->current_picture_ptr; |
| 995 |
} |
| 996 |
|
| 997 |
/**
|
| 998 |
* draws an line from (ex, ey) -> (sx, sy).
|
| 999 |
* @param w width of the image
|
| 1000 |
* @param h height of the image
|
| 1001 |
* @param stride stride/linesize of the image
|
| 1002 |
* @param color color of the arrow
|
| 1003 |
*/
|
| 1004 |
static void draw_line(uint8_t *buf, int sx, int sy, int ex, int ey, int w, int h, int stride, int color){ |
| 1005 |
int x, y, fr, f;
|
| 1006 |
|
| 1007 |
sx= av_clip(sx, 0, w-1); |
| 1008 |
sy= av_clip(sy, 0, h-1); |
| 1009 |
ex= av_clip(ex, 0, w-1); |
| 1010 |
ey= av_clip(ey, 0, h-1); |
| 1011 |
|
| 1012 |
buf[sy*stride + sx]+= color; |
| 1013 |
|
| 1014 |
if(FFABS(ex - sx) > FFABS(ey - sy)){
|
| 1015 |
if(sx > ex){
|
| 1016 |
FFSWAP(int, sx, ex);
|
| 1017 |
FFSWAP(int, sy, ey);
|
| 1018 |
} |
| 1019 |
buf+= sx + sy*stride; |
| 1020 |
ex-= sx; |
| 1021 |
f= ((ey-sy)<<16)/ex;
|
| 1022 |
for(x= 0; x <= ex; x++){ |
| 1023 |
y = (x*f)>>16;
|
| 1024 |
fr= (x*f)&0xFFFF;
|
| 1025 |
buf[ y *stride + x]+= (color*(0x10000-fr))>>16; |
| 1026 |
buf[(y+1)*stride + x]+= (color* fr )>>16; |
| 1027 |
} |
| 1028 |
}else{
|
| 1029 |
if(sy > ey){
|
| 1030 |
FFSWAP(int, sx, ex);
|
| 1031 |
FFSWAP(int, sy, ey);
|
| 1032 |
} |
| 1033 |
buf+= sx + sy*stride; |
| 1034 |
ey-= sy; |
| 1035 |
if(ey) f= ((ex-sx)<<16)/ey; |
| 1036 |
else f= 0; |
| 1037 |
for(y= 0; y <= ey; y++){ |
| 1038 |
x = (y*f)>>16;
|
| 1039 |
fr= (y*f)&0xFFFF;
|
| 1040 |
buf[y*stride + x ]+= (color*(0x10000-fr))>>16; |
| 1041 |
buf[y*stride + x+1]+= (color* fr )>>16; |
| 1042 |
} |
| 1043 |
} |
| 1044 |
} |
| 1045 |
|
| 1046 |
/**
|
| 1047 |
* draws an arrow from (ex, ey) -> (sx, sy).
|
| 1048 |
* @param w width of the image
|
| 1049 |
* @param h height of the image
|
| 1050 |
* @param stride stride/linesize of the image
|
| 1051 |
* @param color color of the arrow
|
| 1052 |
*/
|
| 1053 |
static void draw_arrow(uint8_t *buf, int sx, int sy, int ex, int ey, int w, int h, int stride, int color){ |
| 1054 |
int dx,dy;
|
| 1055 |
|
| 1056 |
sx= av_clip(sx, -100, w+100); |
| 1057 |
sy= av_clip(sy, -100, h+100); |
| 1058 |
ex= av_clip(ex, -100, w+100); |
| 1059 |
ey= av_clip(ey, -100, h+100); |
| 1060 |
|
| 1061 |
dx= ex - sx; |
| 1062 |
dy= ey - sy; |
| 1063 |
|
| 1064 |
if(dx*dx + dy*dy > 3*3){ |
| 1065 |
int rx= dx + dy;
|
| 1066 |
int ry= -dx + dy;
|
| 1067 |
int length= ff_sqrt((rx*rx + ry*ry)<<8); |
| 1068 |
|
| 1069 |
//FIXME subpixel accuracy
|
| 1070 |
rx= ROUNDED_DIV(rx*3<<4, length); |
| 1071 |
ry= ROUNDED_DIV(ry*3<<4, length); |
| 1072 |
|
| 1073 |
draw_line(buf, sx, sy, sx + rx, sy + ry, w, h, stride, color); |
| 1074 |
draw_line(buf, sx, sy, sx - ry, sy + rx, w, h, stride, color); |
| 1075 |
} |
| 1076 |
draw_line(buf, sx, sy, ex, ey, w, h, stride, color); |
| 1077 |
} |
| 1078 |
|
| 1079 |
/**
|
| 1080 |
* prints debuging info for the given picture.
|
| 1081 |
*/
|
| 1082 |
void ff_print_debug_info(MpegEncContext *s, AVFrame *pict){
|
| 1083 |
|
| 1084 |
if(!pict || !pict->mb_type) return; |
| 1085 |
|
| 1086 |
if(s->avctx->debug&(FF_DEBUG_SKIP | FF_DEBUG_QP | FF_DEBUG_MB_TYPE)){
|
| 1087 |
int x,y;
|
| 1088 |
|
| 1089 |
av_log(s->avctx,AV_LOG_DEBUG,"New frame, type: ");
|
| 1090 |
switch (pict->pict_type) {
|
| 1091 |
case FF_I_TYPE: av_log(s->avctx,AV_LOG_DEBUG,"I\n"); break; |
| 1092 |
case FF_P_TYPE: av_log(s->avctx,AV_LOG_DEBUG,"P\n"); break; |
| 1093 |
case FF_B_TYPE: av_log(s->avctx,AV_LOG_DEBUG,"B\n"); break; |
| 1094 |
case FF_S_TYPE: av_log(s->avctx,AV_LOG_DEBUG,"S\n"); break; |
| 1095 |
case FF_SI_TYPE: av_log(s->avctx,AV_LOG_DEBUG,"SI\n"); break; |
| 1096 |
case FF_SP_TYPE: av_log(s->avctx,AV_LOG_DEBUG,"SP\n"); break; |
| 1097 |
} |
| 1098 |
for(y=0; y<s->mb_height; y++){ |
| 1099 |
for(x=0; x<s->mb_width; x++){ |
| 1100 |
if(s->avctx->debug&FF_DEBUG_SKIP){
|
| 1101 |
int count= s->mbskip_table[x + y*s->mb_stride];
|
| 1102 |
if(count>9) count=9; |
| 1103 |
av_log(s->avctx, AV_LOG_DEBUG, "%1d", count);
|
| 1104 |
} |
| 1105 |
if(s->avctx->debug&FF_DEBUG_QP){
|
| 1106 |
av_log(s->avctx, AV_LOG_DEBUG, "%2d", pict->qscale_table[x + y*s->mb_stride]);
|
| 1107 |
} |
| 1108 |
if(s->avctx->debug&FF_DEBUG_MB_TYPE){
|
| 1109 |
int mb_type= pict->mb_type[x + y*s->mb_stride];
|
| 1110 |
//Type & MV direction
|
| 1111 |
if(IS_PCM(mb_type))
|
| 1112 |
av_log(s->avctx, AV_LOG_DEBUG, "P");
|
| 1113 |
else if(IS_INTRA(mb_type) && IS_ACPRED(mb_type)) |
| 1114 |
av_log(s->avctx, AV_LOG_DEBUG, "A");
|
| 1115 |
else if(IS_INTRA4x4(mb_type)) |
| 1116 |
av_log(s->avctx, AV_LOG_DEBUG, "i");
|
| 1117 |
else if(IS_INTRA16x16(mb_type)) |
| 1118 |
av_log(s->avctx, AV_LOG_DEBUG, "I");
|
| 1119 |
else if(IS_DIRECT(mb_type) && IS_SKIP(mb_type)) |
| 1120 |
av_log(s->avctx, AV_LOG_DEBUG, "d");
|
| 1121 |
else if(IS_DIRECT(mb_type)) |
| 1122 |
av_log(s->avctx, AV_LOG_DEBUG, "D");
|
| 1123 |
else if(IS_GMC(mb_type) && IS_SKIP(mb_type)) |
| 1124 |
av_log(s->avctx, AV_LOG_DEBUG, "g");
|
| 1125 |
else if(IS_GMC(mb_type)) |
| 1126 |
av_log(s->avctx, AV_LOG_DEBUG, "G");
|
| 1127 |
else if(IS_SKIP(mb_type)) |
| 1128 |
av_log(s->avctx, AV_LOG_DEBUG, "S");
|
| 1129 |
else if(!USES_LIST(mb_type, 1)) |
| 1130 |
av_log(s->avctx, AV_LOG_DEBUG, ">");
|
| 1131 |
else if(!USES_LIST(mb_type, 0)) |
| 1132 |
av_log(s->avctx, AV_LOG_DEBUG, "<");
|
| 1133 |
else{
|
| 1134 |
assert(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1)); |
| 1135 |
av_log(s->avctx, AV_LOG_DEBUG, "X");
|
| 1136 |
} |
| 1137 |
|
| 1138 |
//segmentation
|
| 1139 |
if(IS_8X8(mb_type))
|
| 1140 |
av_log(s->avctx, AV_LOG_DEBUG, "+");
|
| 1141 |
else if(IS_16X8(mb_type)) |
| 1142 |
av_log(s->avctx, AV_LOG_DEBUG, "-");
|
| 1143 |
else if(IS_8X16(mb_type)) |
| 1144 |
av_log(s->avctx, AV_LOG_DEBUG, "|");
|
| 1145 |
else if(IS_INTRA(mb_type) || IS_16X16(mb_type)) |
| 1146 |
av_log(s->avctx, AV_LOG_DEBUG, " ");
|
| 1147 |
else
|
| 1148 |
av_log(s->avctx, AV_LOG_DEBUG, "?");
|
| 1149 |
|
| 1150 |
|
| 1151 |
if(IS_INTERLACED(mb_type) && s->codec_id == CODEC_ID_H264)
|
| 1152 |
av_log(s->avctx, AV_LOG_DEBUG, "=");
|
| 1153 |
else
|
| 1154 |
av_log(s->avctx, AV_LOG_DEBUG, " ");
|
| 1155 |
} |
| 1156 |
// av_log(s->avctx, AV_LOG_DEBUG, " ");
|
| 1157 |
} |
| 1158 |
av_log(s->avctx, AV_LOG_DEBUG, "\n");
|
| 1159 |
} |
| 1160 |
} |
| 1161 |
|
| 1162 |
if((s->avctx->debug&(FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) || (s->avctx->debug_mv)){
|
| 1163 |
const int shift= 1 + s->quarter_sample; |
| 1164 |
int mb_y;
|
| 1165 |
uint8_t *ptr; |
| 1166 |
int i;
|
| 1167 |
int h_chroma_shift, v_chroma_shift;
|
| 1168 |
const int width = s->avctx->width; |
| 1169 |
const int height= s->avctx->height; |
| 1170 |
const int mv_sample_log2= 4 - pict->motion_subsample_log2; |
| 1171 |
const int mv_stride= (s->mb_width << mv_sample_log2) + (s->codec_id == CODEC_ID_H264 ? 0 : 1); |
| 1172 |
s->low_delay=0; //needed to see the vectors without trashing the buffers |
| 1173 |
|
| 1174 |
avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift); |
| 1175 |
for(i=0; i<3; i++){ |
| 1176 |
memcpy(s->visualization_buffer[i], pict->data[i], (i==0) ? pict->linesize[i]*height:pict->linesize[i]*height >> v_chroma_shift);
|
| 1177 |
pict->data[i]= s->visualization_buffer[i]; |
| 1178 |
} |
| 1179 |
pict->type= FF_BUFFER_TYPE_COPY; |
| 1180 |
ptr= pict->data[0];
|
| 1181 |
|
| 1182 |
for(mb_y=0; mb_y<s->mb_height; mb_y++){ |
| 1183 |
int mb_x;
|
| 1184 |
for(mb_x=0; mb_x<s->mb_width; mb_x++){ |
| 1185 |
const int mb_index= mb_x + mb_y*s->mb_stride; |
| 1186 |
if((s->avctx->debug_mv) && pict->motion_val){
|
| 1187 |
int type;
|
| 1188 |
for(type=0; type<3; type++){ |
| 1189 |
int direction = 0; |
| 1190 |
switch (type) {
|
| 1191 |
case 0: if ((!(s->avctx->debug_mv&FF_DEBUG_VIS_MV_P_FOR)) || (pict->pict_type!=FF_P_TYPE)) |
| 1192 |
continue;
|
| 1193 |
direction = 0;
|
| 1194 |
break;
|
| 1195 |
case 1: if ((!(s->avctx->debug_mv&FF_DEBUG_VIS_MV_B_FOR)) || (pict->pict_type!=FF_B_TYPE)) |
| 1196 |
continue;
|
| 1197 |
direction = 0;
|
| 1198 |
break;
|
| 1199 |
case 2: if ((!(s->avctx->debug_mv&FF_DEBUG_VIS_MV_B_BACK)) || (pict->pict_type!=FF_B_TYPE)) |
| 1200 |
continue;
|
| 1201 |
direction = 1;
|
| 1202 |
break;
|
| 1203 |
} |
| 1204 |
if(!USES_LIST(pict->mb_type[mb_index], direction))
|
| 1205 |
continue;
|
| 1206 |
|
| 1207 |
if(IS_8X8(pict->mb_type[mb_index])){
|
| 1208 |
int i;
|
| 1209 |
for(i=0; i<4; i++){ |
| 1210 |
int sx= mb_x*16 + 4 + 8*(i&1); |
| 1211 |
int sy= mb_y*16 + 4 + 8*(i>>1); |
| 1212 |
int xy= (mb_x*2 + (i&1) + (mb_y*2 + (i>>1))*mv_stride) << (mv_sample_log2-1); |
| 1213 |
int mx= (pict->motion_val[direction][xy][0]>>shift) + sx; |
| 1214 |
int my= (pict->motion_val[direction][xy][1]>>shift) + sy; |
| 1215 |
draw_arrow(ptr, sx, sy, mx, my, width, height, s->linesize, 100);
|
| 1216 |
} |
| 1217 |
}else if(IS_16X8(pict->mb_type[mb_index])){ |
| 1218 |
int i;
|
| 1219 |
for(i=0; i<2; i++){ |
| 1220 |
int sx=mb_x*16 + 8; |
| 1221 |
int sy=mb_y*16 + 4 + 8*i; |
| 1222 |
int xy= (mb_x*2 + (mb_y*2 + i)*mv_stride) << (mv_sample_log2-1); |
| 1223 |
int mx=(pict->motion_val[direction][xy][0]>>shift); |
| 1224 |
int my=(pict->motion_val[direction][xy][1]>>shift); |
| 1225 |
|
| 1226 |
if(IS_INTERLACED(pict->mb_type[mb_index]))
|
| 1227 |
my*=2;
|
| 1228 |
|
| 1229 |
draw_arrow(ptr, sx, sy, mx+sx, my+sy, width, height, s->linesize, 100);
|
| 1230 |
} |
| 1231 |
}else if(IS_8X16(pict->mb_type[mb_index])){ |
| 1232 |
int i;
|
| 1233 |
for(i=0; i<2; i++){ |
| 1234 |
int sx=mb_x*16 + 4 + 8*i; |
| 1235 |
int sy=mb_y*16 + 8; |
| 1236 |
int xy= (mb_x*2 + i + mb_y*2*mv_stride) << (mv_sample_log2-1); |
| 1237 |
int mx=(pict->motion_val[direction][xy][0]>>shift); |
| 1238 |
int my=(pict->motion_val[direction][xy][1]>>shift); |
| 1239 |
|
| 1240 |
if(IS_INTERLACED(pict->mb_type[mb_index]))
|
| 1241 |
my*=2;
|
| 1242 |
|
| 1243 |
draw_arrow(ptr, sx, sy, mx+sx, my+sy, width, height, s->linesize, 100);
|
| 1244 |
} |
| 1245 |
}else{
|
| 1246 |
int sx= mb_x*16 + 8; |
| 1247 |
int sy= mb_y*16 + 8; |
| 1248 |
int xy= (mb_x + mb_y*mv_stride) << mv_sample_log2;
|
| 1249 |
int mx= (pict->motion_val[direction][xy][0]>>shift) + sx; |
| 1250 |
int my= (pict->motion_val[direction][xy][1]>>shift) + sy; |
| 1251 |
draw_arrow(ptr, sx, sy, mx, my, width, height, s->linesize, 100);
|
| 1252 |
} |
| 1253 |
} |
| 1254 |
} |
| 1255 |
if((s->avctx->debug&FF_DEBUG_VIS_QP) && pict->motion_val){
|
| 1256 |
uint64_t c= (pict->qscale_table[mb_index]*128/31) * 0x0101010101010101ULL; |
| 1257 |
int y;
|
| 1258 |
for(y=0; y<8; y++){ |
| 1259 |
*(uint64_t*)(pict->data[1] + 8*mb_x + (8*mb_y + y)*pict->linesize[1])= c; |
| 1260 |
*(uint64_t*)(pict->data[2] + 8*mb_x + (8*mb_y + y)*pict->linesize[2])= c; |
| 1261 |
} |
| 1262 |
} |
| 1263 |
if((s->avctx->debug&FF_DEBUG_VIS_MB_TYPE) && pict->motion_val){
|
| 1264 |
int mb_type= pict->mb_type[mb_index];
|
| 1265 |
uint64_t u,v; |
| 1266 |
int y;
|
| 1267 |
#define COLOR(theta, r)\
|
| 1268 |
u= (int)(128 + r*cos(theta*3.141592/180));\ |
| 1269 |
v= (int)(128 + r*sin(theta*3.141592/180)); |
| 1270 |
|
| 1271 |
|
| 1272 |
u=v=128;
|
| 1273 |
if(IS_PCM(mb_type)){
|
| 1274 |
COLOR(120,48) |
| 1275 |
}else if((IS_INTRA(mb_type) && IS_ACPRED(mb_type)) || IS_INTRA16x16(mb_type)){ |
| 1276 |
COLOR(30,48) |
| 1277 |
}else if(IS_INTRA4x4(mb_type)){ |
| 1278 |
COLOR(90,48) |
| 1279 |
}else if(IS_DIRECT(mb_type) && IS_SKIP(mb_type)){ |
| 1280 |
// COLOR(120,48)
|
| 1281 |
}else if(IS_DIRECT(mb_type)){ |
| 1282 |
COLOR(150,48) |
| 1283 |
}else if(IS_GMC(mb_type) && IS_SKIP(mb_type)){ |
| 1284 |
COLOR(170,48) |
| 1285 |
}else if(IS_GMC(mb_type)){ |
| 1286 |
COLOR(190,48) |
| 1287 |
}else if(IS_SKIP(mb_type)){ |
| 1288 |
// COLOR(180,48)
|
| 1289 |
}else if(!USES_LIST(mb_type, 1)){ |
| 1290 |
COLOR(240,48) |
| 1291 |
}else if(!USES_LIST(mb_type, 0)){ |
| 1292 |
COLOR(0,48) |
| 1293 |
}else{
|
| 1294 |
assert(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1)); |
| 1295 |
COLOR(300,48) |
| 1296 |
} |
| 1297 |
|
| 1298 |
u*= 0x0101010101010101ULL;
|
| 1299 |
v*= 0x0101010101010101ULL;
|
| 1300 |
for(y=0; y<8; y++){ |
| 1301 |
*(uint64_t*)(pict->data[1] + 8*mb_x + (8*mb_y + y)*pict->linesize[1])= u; |
| 1302 |
*(uint64_t*)(pict->data[2] + 8*mb_x + (8*mb_y + y)*pict->linesize[2])= v; |
| 1303 |
} |
| 1304 |
|
| 1305 |
//segmentation
|
| 1306 |
if(IS_8X8(mb_type) || IS_16X8(mb_type)){
|
| 1307 |
*(uint64_t*)(pict->data[0] + 16*mb_x + 0 + (16*mb_y + 8)*pict->linesize[0])^= 0x8080808080808080ULL; |
| 1308 |
*(uint64_t*)(pict->data[0] + 16*mb_x + 8 + (16*mb_y + 8)*pict->linesize[0])^= 0x8080808080808080ULL; |
| 1309 |
} |
| 1310 |
if(IS_8X8(mb_type) || IS_8X16(mb_type)){
|
| 1311 |
for(y=0; y<16; y++) |
| 1312 |
pict->data[0][16*mb_x + 8 + (16*mb_y + y)*pict->linesize[0]]^= 0x80; |
| 1313 |
} |
| 1314 |
if(IS_8X8(mb_type) && mv_sample_log2 >= 2){ |
| 1315 |
int dm= 1 << (mv_sample_log2-2); |
| 1316 |
for(i=0; i<4; i++){ |
| 1317 |
int sx= mb_x*16 + 8*(i&1); |
| 1318 |
int sy= mb_y*16 + 8*(i>>1); |
| 1319 |
int xy= (mb_x*2 + (i&1) + (mb_y*2 + (i>>1))*mv_stride) << (mv_sample_log2-1); |
| 1320 |
//FIXME bidir
|
| 1321 |
int32_t *mv = (int32_t*)&pict->motion_val[0][xy];
|
| 1322 |
if(mv[0] != mv[dm] || mv[dm*mv_stride] != mv[dm*(mv_stride+1)]) |
| 1323 |
for(y=0; y<8; y++) |
| 1324 |
pict->data[0][sx + 4 + (sy + y)*pict->linesize[0]]^= 0x80; |
| 1325 |
if(mv[0] != mv[dm*mv_stride] || mv[dm] != mv[dm*(mv_stride+1)]) |
| 1326 |
*(uint64_t*)(pict->data[0] + sx + (sy + 4)*pict->linesize[0])^= 0x8080808080808080ULL; |
| 1327 |
} |
| 1328 |
} |
| 1329 |
|
| 1330 |
if(IS_INTERLACED(mb_type) && s->codec_id == CODEC_ID_H264){
|
| 1331 |
// hmm
|
| 1332 |
} |
| 1333 |
} |
| 1334 |
s->mbskip_table[mb_index]=0;
|
| 1335 |
} |
| 1336 |
} |
| 1337 |
} |
| 1338 |
} |
| 1339 |
|
| 1340 |
static inline int hpel_motion_lowres(MpegEncContext *s, |
| 1341 |
uint8_t *dest, uint8_t *src, |
| 1342 |
int field_based, int field_select, |
| 1343 |
int src_x, int src_y, |
| 1344 |
int width, int height, int stride, |
| 1345 |
int h_edge_pos, int v_edge_pos, |
| 1346 |
int w, int h, h264_chroma_mc_func *pix_op, |
| 1347 |
int motion_x, int motion_y) |
| 1348 |
{
|
| 1349 |
const int lowres= s->avctx->lowres; |
| 1350 |
const int s_mask= (2<<lowres)-1; |
| 1351 |
int emu=0; |
| 1352 |
int sx, sy;
|
| 1353 |
|
| 1354 |
if(s->quarter_sample){
|
| 1355 |
motion_x/=2;
|
| 1356 |
motion_y/=2;
|
| 1357 |
} |
| 1358 |
|
| 1359 |
sx= motion_x & s_mask; |
| 1360 |
sy= motion_y & s_mask; |
| 1361 |
src_x += motion_x >> (lowres+1);
|
| 1362 |
src_y += motion_y >> (lowres+1);
|
| 1363 |
|
| 1364 |
src += src_y * stride + src_x; |
| 1365 |
|
| 1366 |
if( (unsigned)src_x > h_edge_pos - (!!sx) - w |
| 1367 |
|| (unsigned)src_y >(v_edge_pos >> field_based) - (!!sy) - h){
|
| 1368 |
ff_emulated_edge_mc(s->edge_emu_buffer, src, s->linesize, w+1, (h+1)<<field_based, |
| 1369 |
src_x, src_y<<field_based, h_edge_pos, v_edge_pos); |
| 1370 |
src= s->edge_emu_buffer; |
| 1371 |
emu=1;
|
| 1372 |
} |
| 1373 |
|
| 1374 |
sx <<= 2 - lowres;
|
| 1375 |
sy <<= 2 - lowres;
|
| 1376 |
if(field_select)
|
| 1377 |
src += s->linesize; |
| 1378 |
pix_op[lowres](dest, src, stride, h, sx, sy); |
| 1379 |
return emu;
|
| 1380 |
} |
| 1381 |
|
| 1382 |
/* apply one mpeg motion vector to the three components */
|
| 1383 |
static av_always_inline void mpeg_motion_lowres(MpegEncContext *s, |
| 1384 |
uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, |
| 1385 |
int field_based, int bottom_field, int field_select, |
| 1386 |
uint8_t **ref_picture, h264_chroma_mc_func *pix_op, |
| 1387 |
int motion_x, int motion_y, int h) |
| 1388 |
{
|
| 1389 |
uint8_t *ptr_y, *ptr_cb, *ptr_cr; |
| 1390 |
int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, uvlinesize, linesize, sx, sy, uvsx, uvsy;
|
| 1391 |
const int lowres= s->avctx->lowres; |
| 1392 |
const int block_s= 8>>lowres; |
| 1393 |
const int s_mask= (2<<lowres)-1; |
| 1394 |
const int h_edge_pos = s->h_edge_pos >> lowres; |
| 1395 |
const int v_edge_pos = s->v_edge_pos >> lowres; |
| 1396 |
linesize = s->current_picture.linesize[0] << field_based;
|
| 1397 |
uvlinesize = s->current_picture.linesize[1] << field_based;
|
| 1398 |
|
| 1399 |
if(s->quarter_sample){ //FIXME obviously not perfect but qpel will not work in lowres anyway |
| 1400 |
motion_x/=2;
|
| 1401 |
motion_y/=2;
|
| 1402 |
} |
| 1403 |
|
| 1404 |
if(field_based){
|
| 1405 |
motion_y += (bottom_field - field_select)*((1<<lowres)-1); |
| 1406 |
} |
| 1407 |
|
| 1408 |
sx= motion_x & s_mask; |
| 1409 |
sy= motion_y & s_mask; |
| 1410 |
src_x = s->mb_x*2*block_s + (motion_x >> (lowres+1)); |
| 1411 |
src_y =(s->mb_y*2*block_s>>field_based) + (motion_y >> (lowres+1)); |
| 1412 |
|
| 1413 |
if (s->out_format == FMT_H263) {
|
| 1414 |
uvsx = ((motion_x>>1) & s_mask) | (sx&1); |
| 1415 |
uvsy = ((motion_y>>1) & s_mask) | (sy&1); |
| 1416 |
uvsrc_x = src_x>>1;
|
| 1417 |
uvsrc_y = src_y>>1;
|
| 1418 |
}else if(s->out_format == FMT_H261){//even chroma mv's are full pel in H261 |
| 1419 |
mx = motion_x / 4;
|
| 1420 |
my = motion_y / 4;
|
| 1421 |
uvsx = (2*mx) & s_mask;
|
| 1422 |
uvsy = (2*my) & s_mask;
|
| 1423 |
uvsrc_x = s->mb_x*block_s + (mx >> lowres); |
| 1424 |
uvsrc_y = s->mb_y*block_s + (my >> lowres); |
| 1425 |
} else {
|
| 1426 |
mx = motion_x / 2;
|
| 1427 |
my = motion_y / 2;
|
| 1428 |
uvsx = mx & s_mask; |
| 1429 |
uvsy = my & s_mask; |
| 1430 |
uvsrc_x = s->mb_x*block_s + (mx >> (lowres+1));
|
| 1431 |
uvsrc_y =(s->mb_y*block_s>>field_based) + (my >> (lowres+1));
|
| 1432 |
} |
| 1433 |
|
| 1434 |
ptr_y = ref_picture[0] + src_y * linesize + src_x;
|
| 1435 |
ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
|
| 1436 |
ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
|
| 1437 |
|
| 1438 |
if( (unsigned)src_x > h_edge_pos - (!!sx) - 2*block_s |
| 1439 |
|| (unsigned)src_y >(v_edge_pos >> field_based) - (!!sy) - h){
|
| 1440 |
ff_emulated_edge_mc(s->edge_emu_buffer, ptr_y, s->linesize, 17, 17+field_based, |
| 1441 |
src_x, src_y<<field_based, h_edge_pos, v_edge_pos); |
| 1442 |
ptr_y = s->edge_emu_buffer; |
| 1443 |
if(!ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
|
| 1444 |
uint8_t *uvbuf= s->edge_emu_buffer+18*s->linesize;
|
| 1445 |
ff_emulated_edge_mc(uvbuf , ptr_cb, s->uvlinesize, 9, 9+field_based, |
| 1446 |
uvsrc_x, uvsrc_y<<field_based, h_edge_pos>>1, v_edge_pos>>1); |
| 1447 |
ff_emulated_edge_mc(uvbuf+16, ptr_cr, s->uvlinesize, 9, 9+field_based, |
| 1448 |
uvsrc_x, uvsrc_y<<field_based, h_edge_pos>>1, v_edge_pos>>1); |
| 1449 |
ptr_cb= uvbuf; |
| 1450 |
ptr_cr= uvbuf+16;
|
| 1451 |
} |
| 1452 |
} |
| 1453 |
|
| 1454 |
if(bottom_field){ //FIXME use this for field pix too instead of the obnoxious hack which changes picture.data |
| 1455 |
dest_y += s->linesize; |
| 1456 |
dest_cb+= s->uvlinesize; |
| 1457 |
dest_cr+= s->uvlinesize; |
| 1458 |
} |
| 1459 |
|
| 1460 |
if(field_select){
|
| 1461 |
ptr_y += s->linesize; |
| 1462 |
ptr_cb+= s->uvlinesize; |
| 1463 |
ptr_cr+= s->uvlinesize; |
| 1464 |
} |
| 1465 |
|
| 1466 |
sx <<= 2 - lowres;
|
| 1467 |
sy <<= 2 - lowres;
|
| 1468 |
pix_op[lowres-1](dest_y, ptr_y, linesize, h, sx, sy);
|
| 1469 |
|
| 1470 |
if(!ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
|
| 1471 |
uvsx <<= 2 - lowres;
|
| 1472 |
uvsy <<= 2 - lowres;
|
| 1473 |
pix_op[lowres](dest_cb, ptr_cb, uvlinesize, h >> s->chroma_y_shift, uvsx, uvsy); |
| 1474 |
pix_op[lowres](dest_cr, ptr_cr, uvlinesize, h >> s->chroma_y_shift, uvsx, uvsy); |
| 1475 |
} |
| 1476 |
//FIXME h261 lowres loop filter
|
| 1477 |
} |
| 1478 |
|
| 1479 |
static inline void chroma_4mv_motion_lowres(MpegEncContext *s, |
| 1480 |
uint8_t *dest_cb, uint8_t *dest_cr, |
| 1481 |
uint8_t **ref_picture, |
| 1482 |
h264_chroma_mc_func *pix_op, |
| 1483 |
int mx, int my){ |
| 1484 |
const int lowres= s->avctx->lowres; |
| 1485 |
const int block_s= 8>>lowres; |
| 1486 |
const int s_mask= (2<<lowres)-1; |
| 1487 |
const int h_edge_pos = s->h_edge_pos >> (lowres+1); |
| 1488 |
const int v_edge_pos = s->v_edge_pos >> (lowres+1); |
| 1489 |
int emu=0, src_x, src_y, offset, sx, sy; |
| 1490 |
uint8_t *ptr; |
| 1491 |
|
| 1492 |
if(s->quarter_sample){
|
| 1493 |
mx/=2;
|
| 1494 |
my/=2;
|
| 1495 |
} |
| 1496 |
|
| 1497 |
/* In case of 8X8, we construct a single chroma motion vector
|
| 1498 |
with a special rounding */
|
| 1499 |
mx= ff_h263_round_chroma(mx); |
| 1500 |
my= ff_h263_round_chroma(my); |
| 1501 |
|
| 1502 |
sx= mx & s_mask; |
| 1503 |
sy= my & s_mask; |
| 1504 |
src_x = s->mb_x*block_s + (mx >> (lowres+1));
|
| 1505 |
src_y = s->mb_y*block_s + (my >> (lowres+1));
|
| 1506 |
|
| 1507 |
offset = src_y * s->uvlinesize + src_x; |
| 1508 |
ptr = ref_picture[1] + offset;
|
| 1509 |
if(s->flags&CODEC_FLAG_EMU_EDGE){
|
| 1510 |
if( (unsigned)src_x > h_edge_pos - (!!sx) - block_s |
| 1511 |
|| (unsigned)src_y > v_edge_pos - (!!sy) - block_s){
|
| 1512 |
ff_emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, 9, 9, src_x, src_y, h_edge_pos, v_edge_pos); |
| 1513 |
ptr= s->edge_emu_buffer; |
| 1514 |
emu=1;
|
| 1515 |
} |
| 1516 |
} |
| 1517 |
sx <<= 2 - lowres;
|
| 1518 |
sy <<= 2 - lowres;
|
| 1519 |
pix_op[lowres](dest_cb, ptr, s->uvlinesize, block_s, sx, sy); |
| 1520 |
|
| 1521 |
ptr = ref_picture[2] + offset;
|
| 1522 |
if(emu){
|
| 1523 |
ff_emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, 9, 9, src_x, src_y, h_edge_pos, v_edge_pos); |
| 1524 |
ptr= s->edge_emu_buffer; |
| 1525 |
} |
| 1526 |
pix_op[lowres](dest_cr, ptr, s->uvlinesize, block_s, sx, sy); |
| 1527 |
} |
| 1528 |
|
| 1529 |
/**
|
| 1530 |
* motion compensation of a single macroblock
|
| 1531 |
* @param s context
|
| 1532 |
* @param dest_y luma destination pointer
|
| 1533 |
* @param dest_cb chroma cb/u destination pointer
|
| 1534 |
* @param dest_cr chroma cr/v destination pointer
|
| 1535 |
* @param dir direction (0->forward, 1->backward)
|
| 1536 |
* @param ref_picture array[3] of pointers to the 3 planes of the reference picture
|
| 1537 |
* @param pic_op halfpel motion compensation function (average or put normally)
|
| 1538 |
* the motion vectors are taken from s->mv and the MV type from s->mv_type
|
| 1539 |
*/
|
| 1540 |
static inline void MPV_motion_lowres(MpegEncContext *s, |
| 1541 |
uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, |
| 1542 |
int dir, uint8_t **ref_picture,
|
| 1543 |
h264_chroma_mc_func *pix_op) |
| 1544 |
{
|
| 1545 |
int mx, my;
|
| 1546 |
int mb_x, mb_y, i;
|
| 1547 |
const int lowres= s->avctx->lowres; |
| 1548 |
const int block_s= 8>>lowres; |
| 1549 |
|
| 1550 |
mb_x = s->mb_x; |
| 1551 |
mb_y = s->mb_y; |
| 1552 |
|
| 1553 |
switch(s->mv_type) {
|
| 1554 |
case MV_TYPE_16X16:
|
| 1555 |
mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr, |
| 1556 |
0, 0, 0, |
| 1557 |
ref_picture, pix_op, |
| 1558 |
s->mv[dir][0][0], s->mv[dir][0][1], 2*block_s); |
| 1559 |
break;
|
| 1560 |
case MV_TYPE_8X8:
|
| 1561 |
mx = 0;
|
| 1562 |
my = 0;
|
| 1563 |
for(i=0;i<4;i++) { |
| 1564 |
hpel_motion_lowres(s, dest_y + ((i & 1) + (i >> 1) * s->linesize)*block_s, |
| 1565 |
ref_picture[0], 0, 0, |
| 1566 |
(2*mb_x + (i & 1))*block_s, (2*mb_y + (i >>1))*block_s, |
| 1567 |
s->width, s->height, s->linesize, |
| 1568 |
s->h_edge_pos >> lowres, s->v_edge_pos >> lowres, |
| 1569 |
block_s, block_s, pix_op, |
| 1570 |
s->mv[dir][i][0], s->mv[dir][i][1]); |
| 1571 |
|
| 1572 |
mx += s->mv[dir][i][0];
|
| 1573 |
my += s->mv[dir][i][1];
|
| 1574 |
} |
| 1575 |
|
| 1576 |
if(!ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY))
|
| 1577 |
chroma_4mv_motion_lowres(s, dest_cb, dest_cr, ref_picture, pix_op, mx, my); |
| 1578 |
break;
|
| 1579 |
case MV_TYPE_FIELD:
|
| 1580 |
if (s->picture_structure == PICT_FRAME) {
|
| 1581 |
/* top field */
|
| 1582 |
mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr, |
| 1583 |
1, 0, s->field_select[dir][0], |
| 1584 |
ref_picture, pix_op, |
| 1585 |
s->mv[dir][0][0], s->mv[dir][0][1], block_s); |
| 1586 |
/* bottom field */
|
| 1587 |
mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr, |
| 1588 |
1, 1, s->field_select[dir][1], |
| 1589 |
ref_picture, pix_op, |
| 1590 |
s->mv[dir][1][0], s->mv[dir][1][1], block_s); |
| 1591 |
} else {
|
| 1592 |
if(s->picture_structure != s->field_select[dir][0] + 1 && s->pict_type != FF_B_TYPE && !s->first_field){ |
| 1593 |
ref_picture= s->current_picture_ptr->data; |
| 1594 |
} |
| 1595 |
|
| 1596 |
mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr, |
| 1597 |
0, 0, s->field_select[dir][0], |
| 1598 |
ref_picture, pix_op, |
| 1599 |
s->mv[dir][0][0], s->mv[dir][0][1], 2*block_s); |
| 1600 |
} |
| 1601 |
break;
|
| 1602 |
case MV_TYPE_16X8:
|
| 1603 |
for(i=0; i<2; i++){ |
| 1604 |
uint8_t ** ref2picture; |
| 1605 |
|
| 1606 |
if(s->picture_structure == s->field_select[dir][i] + 1 || s->pict_type == FF_B_TYPE || s->first_field){ |
| 1607 |
ref2picture= ref_picture; |
| 1608 |
}else{
|
| 1609 |
ref2picture= s->current_picture_ptr->data; |
| 1610 |
} |
| 1611 |
|
| 1612 |
mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr, |
| 1613 |
0, 0, s->field_select[dir][i], |
| 1614 |
ref2picture, pix_op, |
| 1615 |
s->mv[dir][i][0], s->mv[dir][i][1] + 2*block_s*i, block_s); |
| 1616 |
|
| 1617 |
dest_y += 2*block_s*s->linesize;
|
| 1618 |
dest_cb+= (2*block_s>>s->chroma_y_shift)*s->uvlinesize;
|
| 1619 |
dest_cr+= (2*block_s>>s->chroma_y_shift)*s->uvlinesize;
|
| 1620 |
} |
| 1621 |
break;
|
| 1622 |
case MV_TYPE_DMV:
|
| 1623 |
if(s->picture_structure == PICT_FRAME){
|
| 1624 |
for(i=0; i<2; i++){ |
| 1625 |
int j;
|
| 1626 |
for(j=0; j<2; j++){ |
| 1627 |
mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr, |
| 1628 |
1, j, j^i,
|
| 1629 |
ref_picture, pix_op, |
| 1630 |
s->mv[dir][2*i + j][0], s->mv[dir][2*i + j][1], block_s); |
| 1631 |
} |
| 1632 |
pix_op = s->dsp.avg_h264_chroma_pixels_tab; |
| 1633 |
} |
| 1634 |
}else{
|
| 1635 |
for(i=0; i<2; i++){ |
| 1636 |
mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr, |
| 1637 |
0, 0, s->picture_structure != i+1, |
| 1638 |
ref_picture, pix_op, |
| 1639 |
s->mv[dir][2*i][0],s->mv[dir][2*i][1],2*block_s); |
| 1640 |
|
| 1641 |
// after put we make avg of the same block
|
| 1642 |
pix_op = s->dsp.avg_h264_chroma_pixels_tab; |
| 1643 |
|
| 1644 |
//opposite parity is always in the same frame if this is second field
|
| 1645 |
if(!s->first_field){
|
| 1646 |
ref_picture = s->current_picture_ptr->data; |
| 1647 |
} |
| 1648 |
} |
| 1649 |
} |
| 1650 |
break;
|
| 1651 |
default: assert(0); |
| 1652 |
} |
| 1653 |
} |
| 1654 |
|
| 1655 |
/* put block[] to dest[] */
|
| 1656 |
static inline void put_dct(MpegEncContext *s, |
| 1657 |
DCTELEM *block, int i, uint8_t *dest, int line_size, int qscale) |
| 1658 |
{
|
| 1659 |
s->dct_unquantize_intra(s, block, i, qscale); |
| 1660 |
s->dsp.idct_put (dest, line_size, block); |
| 1661 |
} |
| 1662 |
|
| 1663 |
/* add block[] to dest[] */
|
| 1664 |
static inline void add_dct(MpegEncContext *s, |
| 1665 |
DCTELEM *block, int i, uint8_t *dest, int line_size) |
| 1666 |
{
|
| 1667 |
if (s->block_last_index[i] >= 0) { |
| 1668 |
s->dsp.idct_add (dest, line_size, block); |
| 1669 |
} |
| 1670 |
} |
| 1671 |
|
| 1672 |
static inline void add_dequant_dct(MpegEncContext *s, |
| 1673 |
DCTELEM *block, int i, uint8_t *dest, int line_size, int qscale) |
| 1674 |
{
|
| 1675 |
if (s->block_last_index[i] >= 0) { |
| 1676 |
s->dct_unquantize_inter(s, block, i, qscale); |
| 1677 |
|
| 1678 |
s->dsp.idct_add (dest, line_size, block); |
| 1679 |
} |
| 1680 |
} |
| 1681 |
|
| 1682 |
/**
|
| 1683 |
* cleans dc, ac, coded_block for the current non intra MB
|
| 1684 |
*/
|
| 1685 |
void ff_clean_intra_table_entries(MpegEncContext *s)
|
| 1686 |
{
|
| 1687 |
int wrap = s->b8_stride;
|
| 1688 |
int xy = s->block_index[0]; |
| 1689 |
|
| 1690 |
s->dc_val[0][xy ] =
|
| 1691 |
s->dc_val[0][xy + 1 ] = |
| 1692 |
s->dc_val[0][xy + wrap] =
|
| 1693 |
s->dc_val[0][xy + 1 + wrap] = 1024; |
| 1694 |
/* ac pred */
|
| 1695 |
memset(s->ac_val[0][xy ], 0, 32 * sizeof(int16_t)); |
| 1696 |
memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t)); |
| 1697 |
if (s->msmpeg4_version>=3) { |
| 1698 |
s->coded_block[xy ] = |
| 1699 |
s->coded_block[xy + 1 ] =
|
| 1700 |
s->coded_block[xy + wrap] = |
| 1701 |
s->coded_block[xy + 1 + wrap] = 0; |
| 1702 |
} |
| 1703 |
/* chroma */
|
| 1704 |
wrap = s->mb_stride; |
| 1705 |
xy = s->mb_x + s->mb_y * wrap; |
| 1706 |
s->dc_val[1][xy] =
|
| 1707 |
s->dc_val[2][xy] = 1024; |
| 1708 |
/* ac pred */
|
| 1709 |
memset(s->ac_val[1][xy], 0, 16 * sizeof(int16_t)); |
| 1710 |
memset(s->ac_val[2][xy], 0, 16 * sizeof(int16_t)); |
| 1711 |
|
| 1712 |
s->mbintra_table[xy]= 0;
|
| 1713 |
} |
| 1714 |
|
| 1715 |
/* generic function called after a macroblock has been parsed by the
|
| 1716 |
decoder or after it has been encoded by the encoder.
|
| 1717 |
|
| 1718 |
Important variables used:
|
| 1719 |
s->mb_intra : true if intra macroblock
|
| 1720 |
s->mv_dir : motion vector direction
|
| 1721 |
s->mv_type : motion vector type
|
| 1722 |
s->mv : motion vector
|
| 1723 |
s->interlaced_dct : true if interlaced dct used (mpeg2)
|
| 1724 |
*/
|
| 1725 |
static av_always_inline
|
| 1726 |
void MPV_decode_mb_internal(MpegEncContext *s, DCTELEM block[12][64], |
| 1727 |
int lowres_flag, int is_mpeg12) |
| 1728 |
{
|
| 1729 |
int mb_x, mb_y;
|
| 1730 |
const int mb_xy = s->mb_y * s->mb_stride + s->mb_x; |
| 1731 |
#ifdef HAVE_XVMC
|
| 1732 |
if(s->avctx->xvmc_acceleration){
|
| 1733 |
XVMC_decode_mb(s);//xvmc uses pblocks
|
| 1734 |
return;
|
| 1735 |
} |
| 1736 |
#endif
|
| 1737 |
|
| 1738 |
mb_x = s->mb_x; |
| 1739 |
mb_y = s->mb_y; |
| 1740 |
|
| 1741 |
if(s->avctx->debug&FF_DEBUG_DCT_COEFF) {
|
| 1742 |
/* save DCT coefficients */
|
| 1743 |
int i,j;
|
| 1744 |
DCTELEM *dct = &s->current_picture.dct_coeff[mb_xy*64*6]; |
| 1745 |
for(i=0; i<6; i++) |
| 1746 |
for(j=0; j<64; j++) |
| 1747 |
*dct++ = block[i][s->dsp.idct_permutation[j]]; |
| 1748 |
} |
| 1749 |
|
| 1750 |
s->current_picture.qscale_table[mb_xy]= s->qscale; |
| 1751 |
|
| 1752 |
/* update DC predictors for P macroblocks */
|
| 1753 |
if (!s->mb_intra) {
|
| 1754 |
if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) {
|
| 1755 |
if(s->mbintra_table[mb_xy])
|
| 1756 |
ff_clean_intra_table_entries(s); |
| 1757 |
} else {
|
| 1758 |
s->last_dc[0] =
|
| 1759 |
s->last_dc[1] =
|
| 1760 |
s->last_dc[2] = 128 << s->intra_dc_precision; |
| 1761 |
} |
| 1762 |
} |
| 1763 |
else if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) |
| 1764 |
s->mbintra_table[mb_xy]=1;
|
| 1765 |
|
| 1766 |
if ((s->flags&CODEC_FLAG_PSNR) || !(s->encoding && (s->intra_only || s->pict_type==FF_B_TYPE) && s->avctx->mb_decision != FF_MB_DECISION_RD)) { //FIXME precalc |
| 1767 |
uint8_t *dest_y, *dest_cb, *dest_cr; |
| 1768 |
int dct_linesize, dct_offset;
|
| 1769 |
op_pixels_func (*op_pix)[4];
|
| 1770 |
qpel_mc_func (*op_qpix)[16];
|
| 1771 |
const int linesize= s->current_picture.linesize[0]; //not s->linesize as this would be wrong for field pics |
| 1772 |
const int uvlinesize= s->current_picture.linesize[1]; |
| 1773 |
const int readable= s->pict_type != FF_B_TYPE || s->encoding || s->avctx->draw_horiz_band || lowres_flag; |
| 1774 |
const int block_size= lowres_flag ? 8>>s->avctx->lowres : 8; |
| 1775 |
|
| 1776 |
/* avoid copy if macroblock skipped in last frame too */
|
| 1777 |
/* skip only during decoding as we might trash the buffers during encoding a bit */
|
| 1778 |
if(!s->encoding){
|
| 1779 |
uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy]; |
| 1780 |
const int age= s->current_picture.age; |
| 1781 |
|
| 1782 |
assert(age); |
| 1783 |
|
| 1784 |
if (s->mb_skipped) {
|
| 1785 |
s->mb_skipped= 0;
|
| 1786 |
assert(s->pict_type!=FF_I_TYPE); |
| 1787 |
|
| 1788 |
(*mbskip_ptr) ++; /* indicate that this time we skipped it */
|
| 1789 |
if(*mbskip_ptr >99) *mbskip_ptr= 99; |
| 1790 |
|
| 1791 |
/* if previous was skipped too, then nothing to do ! */
|
| 1792 |
if (*mbskip_ptr >= age && s->current_picture.reference){
|
| 1793 |
return;
|
| 1794 |
} |
| 1795 |
} else if(!s->current_picture.reference){ |
| 1796 |
(*mbskip_ptr) ++; /* increase counter so the age can be compared cleanly */
|
| 1797 |
if(*mbskip_ptr >99) *mbskip_ptr= 99; |
| 1798 |
} else{
|
| 1799 |
*mbskip_ptr = 0; /* not skipped */ |
| 1800 |
} |
| 1801 |
} |
| 1802 |
|
| 1803 |
dct_linesize = linesize << s->interlaced_dct; |
| 1804 |
dct_offset =(s->interlaced_dct)? linesize : linesize*block_size; |
| 1805 |
|
| 1806 |
if(readable){
|
| 1807 |
dest_y= s->dest[0];
|
| 1808 |
dest_cb= s->dest[1];
|
| 1809 |
dest_cr= s->dest[2];
|
| 1810 |
}else{
|
| 1811 |
dest_y = s->b_scratchpad; |
| 1812 |
dest_cb= s->b_scratchpad+16*linesize;
|
| 1813 |
dest_cr= s->b_scratchpad+32*linesize;
|
| 1814 |
} |
| 1815 |
|
| 1816 |
if (!s->mb_intra) {
|
| 1817 |
/* motion handling */
|
| 1818 |
/* decoding or more than one mb_type (MC was already done otherwise) */
|
| 1819 |
if(!s->encoding){
|
| 1820 |
if(lowres_flag){
|
| 1821 |
h264_chroma_mc_func *op_pix = s->dsp.put_h264_chroma_pixels_tab; |
| 1822 |
|
| 1823 |
if (s->mv_dir & MV_DIR_FORWARD) {
|
| 1824 |
MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.data, op_pix);
|
| 1825 |
op_pix = s->dsp.avg_h264_chroma_pixels_tab; |
| 1826 |
} |
| 1827 |
if (s->mv_dir & MV_DIR_BACKWARD) {
|
| 1828 |
MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.data, op_pix);
|
| 1829 |
} |
| 1830 |
}else{
|
| 1831 |
op_qpix= s->me.qpel_put; |
| 1832 |
if ((!s->no_rounding) || s->pict_type==FF_B_TYPE){
|
| 1833 |
op_pix = s->dsp.put_pixels_tab; |
| 1834 |
}else{
|
| 1835 |
op_pix = s->dsp.put_no_rnd_pixels_tab; |
| 1836 |
} |
| 1837 |
if (s->mv_dir & MV_DIR_FORWARD) {
|
| 1838 |
MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.data, op_pix, op_qpix);
|
| 1839 |
op_pix = s->dsp.avg_pixels_tab; |
| 1840 |
op_qpix= s->me.qpel_avg; |
| 1841 |
} |
| 1842 |
if (s->mv_dir & MV_DIR_BACKWARD) {
|
| 1843 |
MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.data, op_pix, op_qpix);
|
| 1844 |
} |
| 1845 |
} |
| 1846 |
} |
| 1847 |
|
| 1848 |
/* skip dequant / idct if we are really late ;) */
|
| 1849 |
if(s->hurry_up>1) goto skip_idct; |
| 1850 |
if(s->avctx->skip_idct){
|
| 1851 |
if( (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == FF_B_TYPE)
|
| 1852 |
||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != FF_I_TYPE) |
| 1853 |
|| s->avctx->skip_idct >= AVDISCARD_ALL) |
| 1854 |
goto skip_idct;
|
| 1855 |
} |
| 1856 |
|
| 1857 |
/* add dct residue */
|
| 1858 |
if(s->encoding || !( s->h263_msmpeg4 || s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO
|
| 1859 |
|| (s->codec_id==CODEC_ID_MPEG4 && !s->mpeg_quant))){
|
| 1860 |
add_dequant_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale); |
| 1861 |
add_dequant_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale); |
| 1862 |
add_dequant_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale); |
| 1863 |
add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale); |
| 1864 |
|
| 1865 |
if(!ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
|
| 1866 |
if (s->chroma_y_shift){
|
| 1867 |
add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale); |
| 1868 |
add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale); |
| 1869 |
}else{
|
| 1870 |
dct_linesize >>= 1;
|
| 1871 |
dct_offset >>=1;
|
| 1872 |
add_dequant_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale); |
| 1873 |
add_dequant_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale); |
| 1874 |
add_dequant_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale); |
| 1875 |
add_dequant_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale); |
| 1876 |
} |
| 1877 |
} |
| 1878 |
} else if(is_mpeg12 || (s->codec_id != CODEC_ID_WMV2)){ |
| 1879 |
add_dct(s, block[0], 0, dest_y , dct_linesize); |
| 1880 |
add_dct(s, block[1], 1, dest_y + block_size, dct_linesize); |
| 1881 |
add_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize); |
| 1882 |
add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize); |
| 1883 |
|
| 1884 |
if(!ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
|
| 1885 |
if(s->chroma_y_shift){//Chroma420 |
| 1886 |
add_dct(s, block[4], 4, dest_cb, uvlinesize); |
| 1887 |
add_dct(s, block[5], 5, dest_cr, uvlinesize); |
| 1888 |
}else{
|
| 1889 |
//chroma422
|
| 1890 |
dct_linesize = uvlinesize << s->interlaced_dct; |
| 1891 |
dct_offset =(s->interlaced_dct)? uvlinesize : uvlinesize*8;
|
| 1892 |
|
| 1893 |
add_dct(s, block[4], 4, dest_cb, dct_linesize); |
| 1894 |
add_dct(s, block[5], 5, dest_cr, dct_linesize); |
| 1895 |
add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize); |
| 1896 |
add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize); |
| 1897 |
if(!s->chroma_x_shift){//Chroma444 |
| 1898 |
add_dct(s, block[8], 8, dest_cb+8, dct_linesize); |
| 1899 |
add_dct(s, block[9], 9, dest_cr+8, dct_linesize); |
| 1900 |
add_dct(s, block[10], 10, dest_cb+8+dct_offset, dct_linesize); |
| 1901 |
add_dct(s, block[11], 11, dest_cr+8+dct_offset, dct_linesize); |
| 1902 |
} |
| 1903 |
} |
| 1904 |
}//fi gray
|
| 1905 |
} |
| 1906 |
else if (ENABLE_WMV2) { |
| 1907 |
ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr); |
| 1908 |
} |
| 1909 |
} else {
|
| 1910 |
/* dct only in intra block */
|
| 1911 |
if(s->encoding || !(s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO)){
|
| 1912 |
put_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale); |
| 1913 |
put_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale); |
| 1914 |
put_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale); |
| 1915 |
put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale); |
| 1916 |
|
| 1917 |
if(!ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
|
| 1918 |
if(s->chroma_y_shift){
|
| 1919 |
put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale); |
| 1920 |
put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale); |
| 1921 |
}else{
|
| 1922 |
dct_offset >>=1;
|
| 1923 |
dct_linesize >>=1;
|
| 1924 |
put_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale); |
| 1925 |
put_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale); |
| 1926 |
put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale); |
| 1927 |
put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale); |
| 1928 |
} |
| 1929 |
} |
| 1930 |
}else{
|
| 1931 |
s->dsp.idct_put(dest_y , dct_linesize, block[0]);
|
| 1932 |
s->dsp.idct_put(dest_y + block_size, dct_linesize, block[1]);
|
| 1933 |
s->dsp.idct_put(dest_y + dct_offset , dct_linesize, block[2]);
|
| 1934 |
s->dsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]);
|
| 1935 |
|
| 1936 |
if(!ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
|
| 1937 |
if(s->chroma_y_shift){
|
| 1938 |
s->dsp.idct_put(dest_cb, uvlinesize, block[4]);
|
| 1939 |
s->dsp.idct_put(dest_cr, uvlinesize, block[5]);
|
| 1940 |
}else{
|
| 1941 |
|
| 1942 |
dct_linesize = uvlinesize << s->interlaced_dct; |
| 1943 |
dct_offset =(s->interlaced_dct)? uvlinesize : uvlinesize*8;
|
| 1944 |
|
| 1945 |
s->dsp.idct_put(dest_cb, dct_linesize, block[4]);
|
| 1946 |
s->dsp.idct_put(dest_cr, dct_linesize, block[5]);
|
| 1947 |
s->dsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]);
|
| 1948 |
s->dsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]);
|
| 1949 |
if(!s->chroma_x_shift){//Chroma444 |
| 1950 |
s->dsp.idct_put(dest_cb + 8, dct_linesize, block[8]); |
| 1951 |
s->dsp.idct_put(dest_cr + 8, dct_linesize, block[9]); |
| 1952 |
s->dsp.idct_put(dest_cb + 8 + dct_offset, dct_linesize, block[10]); |
| 1953 |
s->dsp.idct_put(dest_cr + 8 + dct_offset, dct_linesize, block[11]); |
| 1954 |
} |
| 1955 |
} |
| 1956 |
}//gray
|
| 1957 |
} |
| 1958 |
} |
| 1959 |
skip_idct:
|
| 1960 |
if(!readable){
|
| 1961 |
s->dsp.put_pixels_tab[0][0](s->dest[0], dest_y , linesize,16); |
| 1962 |
s->dsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift); |
| 1963 |
s->dsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift); |
| 1964 |
} |
| 1965 |
} |
| 1966 |
} |
| 1967 |
|
| 1968 |
void MPV_decode_mb(MpegEncContext *s, DCTELEM block[12][64]){ |
| 1969 |
#ifndef CONFIG_SMALL
|
| 1970 |
if(s->out_format == FMT_MPEG1) {
|
| 1971 |
if(s->avctx->lowres) MPV_decode_mb_internal(s, block, 1, 1); |
| 1972 |
else MPV_decode_mb_internal(s, block, 0, 1); |
| 1973 |
} else
|
| 1974 |
#endif
|
| 1975 |
if(s->avctx->lowres) MPV_decode_mb_internal(s, block, 1, 0); |
| 1976 |
else MPV_decode_mb_internal(s, block, 0, 0); |
| 1977 |
} |
| 1978 |
|
| 1979 |
/**
|
| 1980 |
*
|
| 1981 |
* @param h is the normal height, this will be reduced automatically if needed for the last row
|
| 1982 |
*/
|
| 1983 |
void ff_draw_horiz_band(MpegEncContext *s, int y, int h){ |
| 1984 |
if (s->avctx->draw_horiz_band) {
|
| 1985 |
AVFrame *src; |
| 1986 |
int offset[4]; |
| 1987 |
|
| 1988 |
if(s->picture_structure != PICT_FRAME){
|
| 1989 |
h <<= 1;
|
| 1990 |
y <<= 1;
|
| 1991 |
if(s->first_field && !(s->avctx->slice_flags&SLICE_FLAG_ALLOW_FIELD)) return; |
| 1992 |
} |
| 1993 |
|
| 1994 |
h= FFMIN(h, s->avctx->height - y); |
| 1995 |
|
| 1996 |
if(s->pict_type==FF_B_TYPE || s->low_delay || (s->avctx->slice_flags&SLICE_FLAG_CODED_ORDER))
|
| 1997 |
src= (AVFrame*)s->current_picture_ptr; |
| 1998 |
else if(s->last_picture_ptr) |
| 1999 |
src= (AVFrame*)s->last_picture_ptr; |
| 2000 |
else
|
| 2001 |
return;
|
| 2002 |
|
| 2003 |
if(s->pict_type==FF_B_TYPE && s->picture_structure == PICT_FRAME && s->out_format != FMT_H264){
|
| 2004 |
offset[0]=
|
| 2005 |
offset[1]=
|
| 2006 |
offset[2]=
|
| 2007 |
offset[3]= 0; |
| 2008 |
}else{
|
| 2009 |
offset[0]= y * s->linesize;
|
| 2010 |
offset[1]=
|
| 2011 |
offset[2]= (y >> s->chroma_y_shift) * s->uvlinesize;
|
| 2012 |
offset[3]= 0; |
| 2013 |
} |
| 2014 |
|
| 2015 |
emms_c(); |
| 2016 |
|
| 2017 |
s->avctx->draw_horiz_band(s->avctx, src, offset, |
| 2018 |
y, s->picture_structure, h); |
| 2019 |
} |
| 2020 |
} |
| 2021 |
|
| 2022 |
void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename |
| 2023 |
const int linesize= s->current_picture.linesize[0]; //not s->linesize as this would be wrong for field pics |
| 2024 |
const int uvlinesize= s->current_picture.linesize[1]; |
| 2025 |
const int mb_size= 4 - s->avctx->lowres; |
| 2026 |
|
| 2027 |
s->block_index[0]= s->b8_stride*(s->mb_y*2 ) - 2 + s->mb_x*2; |
| 2028 |
s->block_index[1]= s->b8_stride*(s->mb_y*2 ) - 1 + s->mb_x*2; |
| 2029 |
s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) - 2 + s->mb_x*2; |
| 2030 |
s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) - 1 + s->mb_x*2; |
| 2031 |
s->block_index[4]= s->mb_stride*(s->mb_y + 1) + s->b8_stride*s->mb_height*2 + s->mb_x - 1; |
| 2032 |
s->block_index[5]= s->mb_stride*(s->mb_y + s->mb_height + 2) + s->b8_stride*s->mb_height*2 + s->mb_x - 1; |
| 2033 |
//block_index is not used by mpeg2, so it is not affected by chroma_format
|
| 2034 |
|
| 2035 |
s->dest[0] = s->current_picture.data[0] + ((s->mb_x - 1) << mb_size); |
| 2036 |
s->dest[1] = s->current_picture.data[1] + ((s->mb_x - 1) << (mb_size - s->chroma_x_shift)); |
| 2037 |
s->dest[2] = s->current_picture.data[2] + ((s->mb_x - 1) << (mb_size - s->chroma_x_shift)); |
| 2038 |
|
| 2039 |
if(!(s->pict_type==FF_B_TYPE && s->avctx->draw_horiz_band && s->picture_structure==PICT_FRAME))
|
| 2040 |
{
|
| 2041 |
s->dest[0] += s->mb_y * linesize << mb_size;
|
| 2042 |
s->dest[1] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
|
| 2043 |
s->dest[2] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
|
| 2044 |
} |
| 2045 |
} |
| 2046 |
|
| 2047 |
void ff_mpeg_flush(AVCodecContext *avctx){
|
| 2048 |
int i;
|
| 2049 |
MpegEncContext *s = avctx->priv_data; |
| 2050 |
|
| 2051 |
if(s==NULL || s->picture==NULL) |
| 2052 |
return;
|
| 2053 |
|
| 2054 |
for(i=0; i<MAX_PICTURE_COUNT; i++){ |
| 2055 |
if(s->picture[i].data[0] && ( s->picture[i].type == FF_BUFFER_TYPE_INTERNAL |
| 2056 |
|| s->picture[i].type == FF_BUFFER_TYPE_USER)) |
| 2057 |
avctx->release_buffer(avctx, (AVFrame*)&s->picture[i]); |
| 2058 |
} |
| 2059 |
s->current_picture_ptr = s->last_picture_ptr = s->next_picture_ptr = NULL;
|
| 2060 |
|
| 2061 |
s->mb_x= s->mb_y= 0;
|
| 2062 |
|
| 2063 |
s->parse_context.state= -1;
|
| 2064 |
s->parse_context.frame_start_found= 0;
|
| 2065 |
s->parse_context.overread= 0;
|
| 2066 |
s->parse_context.overread_index= 0;
|
| 2067 |
s->parse_context.index= 0;
|
| 2068 |
s->parse_context.last_index= 0;
|
| 2069 |
s->bitstream_buffer_size=0;
|
| 2070 |
s->pp_time=0;
|
| 2071 |
} |
| 2072 |
|
| 2073 |
static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s, |
| 2074 |
DCTELEM *block, int n, int qscale) |
| 2075 |
{
|
| 2076 |
int i, level, nCoeffs;
|
| 2077 |
const uint16_t *quant_matrix;
|
| 2078 |
|
| 2079 |
nCoeffs= s->block_last_index[n]; |
| 2080 |
|
| 2081 |
if (n < 4) |
| 2082 |
block[0] = block[0] * s->y_dc_scale; |
| 2083 |
else
|
| 2084 |
block[0] = block[0] * s->c_dc_scale; |
| 2085 |
/* XXX: only mpeg1 */
|
| 2086 |
quant_matrix = s->intra_matrix; |
| 2087 |
for(i=1;i<=nCoeffs;i++) { |
| 2088 |
int j= s->intra_scantable.permutated[i];
|
| 2089 |
level = block[j]; |
| 2090 |
if (level) {
|
| 2091 |
if (level < 0) { |
| 2092 |
level = -level; |
| 2093 |
level = (int)(level * qscale * quant_matrix[j]) >> 3; |
| 2094 |
level = (level - 1) | 1; |
| 2095 |
level = -level; |
| 2096 |
} else {
|
| 2097 |
level = (int)(level * qscale * quant_matrix[j]) >> 3; |
| 2098 |
level = (level - 1) | 1; |
| 2099 |
} |
| 2100 |
block[j] = level; |
| 2101 |
} |
| 2102 |
} |
| 2103 |
} |
| 2104 |
|
| 2105 |
static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s, |
| 2106 |
DCTELEM *block, int n, int qscale) |
| 2107 |
{
|
| 2108 |
int i, level, nCoeffs;
|
| 2109 |
const uint16_t *quant_matrix;
|
| 2110 |
|
| 2111 |
nCoeffs= s->block_last_index[n]; |
| 2112 |
|
| 2113 |
quant_matrix = s->inter_matrix; |
| 2114 |
for(i=0; i<=nCoeffs; i++) { |
| 2115 |
int j= s->intra_scantable.permutated[i];
|
| 2116 |
level = block[j]; |
| 2117 |
if (level) {
|
| 2118 |
if (level < 0) { |
| 2119 |
level = -level; |
| 2120 |
level = (((level << 1) + 1) * qscale * |
| 2121 |
((int) (quant_matrix[j]))) >> 4; |
| 2122 |
level = (level - 1) | 1; |
| 2123 |
level = -level; |
| 2124 |
} else {
|
| 2125 |
level = (((level << 1) + 1) * qscale * |
| 2126 |
((int) (quant_matrix[j]))) >> 4; |
| 2127 |
level = (level - 1) | 1; |
| 2128 |
} |
| 2129 |
block[j] = level; |
| 2130 |
} |
| 2131 |
} |
| 2132 |
} |
| 2133 |
|
| 2134 |
static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s, |
| 2135 |
DCTELEM *block, int n, int qscale) |
| 2136 |
{
|
| 2137 |
int i, level, nCoeffs;
|
| 2138 |
const uint16_t *quant_matrix;
|
| 2139 |
|
| 2140 |
if(s->alternate_scan) nCoeffs= 63; |
| 2141 |
else nCoeffs= s->block_last_index[n];
|
| 2142 |
|
| 2143 |
if (n < 4) |
| 2144 |
block[0] = block[0] * s->y_dc_scale; |
| 2145 |
else
|
| 2146 |
block[0] = block[0] * s->c_dc_scale; |
| 2147 |
quant_matrix = s->intra_matrix; |
| 2148 |
for(i=1;i<=nCoeffs;i++) { |
| 2149 |
int j= s->intra_scantable.permutated[i];
|
| 2150 |
level = block[j]; |
| 2151 |
if (level) {
|
| 2152 |
if (level < 0) { |
| 2153 |
level = -level; |
| 2154 |
level = (int)(level * qscale * quant_matrix[j]) >> 3; |
| 2155 |
level = -level; |
| 2156 |
} else {
|
| 2157 |
level = (int)(level * qscale * quant_matrix[j]) >> 3; |
| 2158 |
} |
| 2159 |
block[j] = level; |
| 2160 |
} |
| 2161 |
} |
| 2162 |
} |
| 2163 |
|
| 2164 |
static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s, |
| 2165 |
DCTELEM *block, int n, int qscale) |
| 2166 |
{
|
| 2167 |
int i, level, nCoeffs;
|
| 2168 |
const uint16_t *quant_matrix;
|
| 2169 |
int sum=-1; |
| 2170 |
|
| 2171 |
if(s->alternate_scan) nCoeffs= 63; |
| 2172 |
else nCoeffs= s->block_last_index[n];
|
| 2173 |
|
| 2174 |
if (n < 4) |
| 2175 |
block[0] = block[0] * s->y_dc_scale; |
| 2176 |
else
|
| 2177 |
block[0] = block[0] * s->c_dc_scale; |
| 2178 |
quant_matrix = s->intra_matrix; |
| 2179 |
for(i=1;i<=nCoeffs;i++) { |
| 2180 |
int j= s->intra_scantable.permutated[i];
|
| 2181 |
level = block[j]; |
| 2182 |
if (level) {
|
| 2183 |
if (level < 0) { |
| 2184 |
level = -level; |
| 2185 |
level = (int)(level * qscale * quant_matrix[j]) >> 3; |
| 2186 |
level = -level; |
| 2187 |
} else {
|
| 2188 |
level = (int)(level * qscale * quant_matrix[j]) >> 3; |
| 2189 |
} |
| 2190 |
block[j] = level; |
| 2191 |
sum+=level; |
| 2192 |
} |
| 2193 |
} |
| 2194 |
block[63]^=sum&1; |
| 2195 |
} |
| 2196 |
|
| 2197 |
static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s, |
| 2198 |
DCTELEM *block, int n, int qscale) |
| 2199 |
{
|
| 2200 |
int i, level, nCoeffs;
|
| 2201 |
const uint16_t *quant_matrix;
|
| 2202 |
int sum=-1; |
| 2203 |
|
| 2204 |
if(s->alternate_scan) nCoeffs= 63; |
| 2205 |
else nCoeffs= s->block_last_index[n];
|
| 2206 |
|
| 2207 |
quant_matrix = s->inter_matrix; |
| 2208 |
for(i=0; i<=nCoeffs; i++) { |
| 2209 |
int j= s->intra_scantable.permutated[i];
|
| 2210 |
level = block[j]; |
| 2211 |
if (level) {
|
| 2212 |
if (level < 0) { |
| 2213 |
level = -level; |
| 2214 |
level = (((level << 1) + 1) * qscale * |
| 2215 |
((int) (quant_matrix[j]))) >> 4; |
| 2216 |
level = -level; |
| 2217 |
} else {
|
| 2218 |
level = (((level << 1) + 1) * qscale * |
| 2219 |
((int) (quant_matrix[j]))) >> 4; |
| 2220 |
} |
| 2221 |
block[j] = level; |
| 2222 |
sum+=level; |
| 2223 |
} |
| 2224 |
} |
| 2225 |
block[63]^=sum&1; |
| 2226 |
} |
| 2227 |
|
| 2228 |
static void dct_unquantize_h263_intra_c(MpegEncContext *s, |
| 2229 |
DCTELEM *block, int n, int qscale) |
| 2230 |
{
|
| 2231 |
int i, level, qmul, qadd;
|
| 2232 |
int nCoeffs;
|
| 2233 |
|
| 2234 |
assert(s->block_last_index[n]>=0);
|
| 2235 |
|
| 2236 |
qmul = qscale << 1;
|
| 2237 |
|
| 2238 |
if (!s->h263_aic) {
|
| 2239 |
if (n < 4) |
| 2240 |
block[0] = block[0] * s->y_dc_scale; |
| 2241 |
else
|
| 2242 |
block[0] = block[0] * s->c_dc_scale; |
| 2243 |
qadd = (qscale - 1) | 1; |
| 2244 |
}else{
|
| 2245 |
qadd = 0;
|
| 2246 |
} |
| 2247 |
if(s->ac_pred)
|
| 2248 |
nCoeffs=63;
|
| 2249 |
else
|
| 2250 |
nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ]; |
| 2251 |
|
| 2252 |
for(i=1; i<=nCoeffs; i++) { |
| 2253 |
level = block[i]; |
| 2254 |
if (level) {
|
| 2255 |
if (level < 0) { |
| 2256 |
level = level * qmul - qadd; |
| 2257 |
} else {
|
| 2258 |
level = level * qmul + qadd; |
| 2259 |
} |
| 2260 |
block[i] = level; |
| 2261 |
} |
| 2262 |
} |
| 2263 |
} |
| 2264 |
|
| 2265 |
static void dct_unquantize_h263_inter_c(MpegEncContext *s, |
| 2266 |
DCTELEM *block, int n, int qscale) |
| 2267 |
{
|
| 2268 |
int i, level, qmul, qadd;
|
| 2269 |
int nCoeffs;
|
| 2270 |
|
| 2271 |
assert(s->block_last_index[n]>=0);
|
| 2272 |
|
| 2273 |
qadd = (qscale - 1) | 1; |
| 2274 |
qmul = qscale << 1;
|
| 2275 |
|
| 2276 |
nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ]; |
| 2277 |
|
| 2278 |
for(i=0; i<=nCoeffs; i++) { |
| 2279 |
level = block[i]; |
| 2280 |
if (level) {
|
| 2281 |
if (level < 0) { |
| 2282 |
level = level * qmul - qadd; |
| 2283 |
} else {
|
| 2284 |
level = level * qmul + qadd; |
| 2285 |
} |
| 2286 |
block[i] = level; |
| 2287 |
} |
| 2288 |
} |
| 2289 |
} |
| 2290 |
|
| 2291 |
/**
|
| 2292 |
* set qscale and update qscale dependent variables.
|
| 2293 |
*/
|
| 2294 |
void ff_set_qscale(MpegEncContext * s, int qscale) |
| 2295 |
{
|
| 2296 |
if (qscale < 1) |
| 2297 |
qscale = 1;
|
| 2298 |
else if (qscale > 31) |
| 2299 |
qscale = 31;
|
| 2300 |
|
| 2301 |
s->qscale = qscale; |
| 2302 |
s->chroma_qscale= s->chroma_qscale_table[qscale]; |
| 2303 |
|
| 2304 |
s->y_dc_scale= s->y_dc_scale_table[ qscale ]; |
| 2305 |
s->c_dc_scale= s->c_dc_scale_table[ s->chroma_qscale ]; |
| 2306 |
} |