ffmpeg / libavcodec / mpegvideo_common.h @ d23e3e5f
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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
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* The simplest mpeg encoder (well, it was the simplest!).
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*/
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#ifndef AVCODEC_MPEGVIDEO_COMMON_H
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#define AVCODEC_MPEGVIDEO_COMMON_H
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#include <string.h> |
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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 "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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int dct_quantize_c(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow); |
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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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/**
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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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static inline void gmc1_motion(MpegEncContext *s, |
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uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, |
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uint8_t **ref_picture) |
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{ |
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uint8_t *ptr; |
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int offset, src_x, src_y, linesize, uvlinesize;
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int motion_x, motion_y;
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int emu=0; |
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motion_x= s->sprite_offset[0][0]; |
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motion_y= s->sprite_offset[0][1]; |
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src_x = s->mb_x * 16 + (motion_x >> (s->sprite_warping_accuracy+1)); |
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src_y = s->mb_y * 16 + (motion_y >> (s->sprite_warping_accuracy+1)); |
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motion_x<<=(3-s->sprite_warping_accuracy);
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motion_y<<=(3-s->sprite_warping_accuracy);
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src_x = av_clip(src_x, -16, s->width);
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if (src_x == s->width)
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motion_x =0;
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src_y = av_clip(src_y, -16, s->height);
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if (src_y == s->height)
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motion_y =0;
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linesize = s->linesize; |
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uvlinesize = s->uvlinesize; |
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ptr = ref_picture[0] + (src_y * linesize) + src_x;
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if(s->flags&CODEC_FLAG_EMU_EDGE){
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if( (unsigned)src_x >= s->h_edge_pos - 17 |
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|| (unsigned)src_y >= s->v_edge_pos - 17){ |
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s->dsp.emulated_edge_mc(s->edge_emu_buffer, ptr, linesize, 17, 17, src_x, src_y, s->h_edge_pos, s->v_edge_pos); |
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ptr= s->edge_emu_buffer; |
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} |
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} |
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if((motion_x|motion_y)&7){ |
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s->dsp.gmc1(dest_y , ptr , linesize, 16, motion_x&15, motion_y&15, 128 - s->no_rounding); |
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s->dsp.gmc1(dest_y+8, ptr+8, linesize, 16, motion_x&15, motion_y&15, 128 - s->no_rounding); |
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}else{
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int dxy;
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dxy= ((motion_x>>3)&1) | ((motion_y>>2)&2); |
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if (s->no_rounding){
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s->dsp.put_no_rnd_pixels_tab[0][dxy](dest_y, ptr, linesize, 16); |
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}else{
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s->dsp.put_pixels_tab [0][dxy](dest_y, ptr, linesize, 16); |
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} |
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} |
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if(CONFIG_GRAY && s->flags&CODEC_FLAG_GRAY) return; |
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motion_x= s->sprite_offset[1][0]; |
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motion_y= s->sprite_offset[1][1]; |
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src_x = s->mb_x * 8 + (motion_x >> (s->sprite_warping_accuracy+1)); |
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src_y = s->mb_y * 8 + (motion_y >> (s->sprite_warping_accuracy+1)); |
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motion_x<<=(3-s->sprite_warping_accuracy);
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motion_y<<=(3-s->sprite_warping_accuracy);
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src_x = av_clip(src_x, -8, s->width>>1); |
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if (src_x == s->width>>1) |
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motion_x =0;
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src_y = av_clip(src_y, -8, s->height>>1); |
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if (src_y == s->height>>1) |
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motion_y =0;
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offset = (src_y * uvlinesize) + src_x; |
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ptr = ref_picture[1] + offset;
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if(s->flags&CODEC_FLAG_EMU_EDGE){
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if( (unsigned)src_x >= (s->h_edge_pos>>1) - 9 |
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|| (unsigned)src_y >= (s->v_edge_pos>>1) - 9){ |
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s->dsp.emulated_edge_mc(s->edge_emu_buffer, ptr, uvlinesize, 9, 9, src_x, src_y, s->h_edge_pos>>1, s->v_edge_pos>>1); |
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ptr= s->edge_emu_buffer; |
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emu=1;
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} |
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} |
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s->dsp.gmc1(dest_cb, ptr, uvlinesize, 8, motion_x&15, motion_y&15, 128 - s->no_rounding); |
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ptr = ref_picture[2] + offset;
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if(emu){
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s->dsp.emulated_edge_mc(s->edge_emu_buffer, ptr, uvlinesize, 9, 9, src_x, src_y, s->h_edge_pos>>1, s->v_edge_pos>>1); |
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ptr= s->edge_emu_buffer; |
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} |
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s->dsp.gmc1(dest_cr, ptr, uvlinesize, 8, motion_x&15, motion_y&15, 128 - s->no_rounding); |
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return;
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} |
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static inline void gmc_motion(MpegEncContext *s, |
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uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, |
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uint8_t **ref_picture) |
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{ |
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uint8_t *ptr; |
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int linesize, uvlinesize;
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const int a= s->sprite_warping_accuracy; |
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int ox, oy;
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linesize = s->linesize; |
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uvlinesize = s->uvlinesize; |
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ptr = ref_picture[0];
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ox= s->sprite_offset[0][0] + s->sprite_delta[0][0]*s->mb_x*16 + s->sprite_delta[0][1]*s->mb_y*16; |
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oy= s->sprite_offset[0][1] + s->sprite_delta[1][0]*s->mb_x*16 + s->sprite_delta[1][1]*s->mb_y*16; |
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s->dsp.gmc(dest_y, ptr, linesize, 16,
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ox, |
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oy, |
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s->sprite_delta[0][0], s->sprite_delta[0][1], |
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s->sprite_delta[1][0], s->sprite_delta[1][1], |
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a+1, (1<<(2*a+1)) - s->no_rounding, |
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s->h_edge_pos, s->v_edge_pos); |
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s->dsp.gmc(dest_y+8, ptr, linesize, 16, |
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ox + s->sprite_delta[0][0]*8, |
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oy + s->sprite_delta[1][0]*8, |
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s->sprite_delta[0][0], s->sprite_delta[0][1], |
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s->sprite_delta[1][0], s->sprite_delta[1][1], |
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a+1, (1<<(2*a+1)) - s->no_rounding, |
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s->h_edge_pos, s->v_edge_pos); |
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if(CONFIG_GRAY && s->flags&CODEC_FLAG_GRAY) return; |
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ox= s->sprite_offset[1][0] + s->sprite_delta[0][0]*s->mb_x*8 + s->sprite_delta[0][1]*s->mb_y*8; |
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oy= s->sprite_offset[1][1] + s->sprite_delta[1][0]*s->mb_x*8 + s->sprite_delta[1][1]*s->mb_y*8; |
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ptr = ref_picture[1];
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s->dsp.gmc(dest_cb, ptr, uvlinesize, 8,
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ox, |
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oy, |
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s->sprite_delta[0][0], s->sprite_delta[0][1], |
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s->sprite_delta[1][0], s->sprite_delta[1][1], |
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a+1, (1<<(2*a+1)) - s->no_rounding, |
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s->h_edge_pos>>1, s->v_edge_pos>>1); |
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ptr = ref_picture[2];
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s->dsp.gmc(dest_cr, ptr, uvlinesize, 8,
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ox, |
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oy, |
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s->sprite_delta[0][0], s->sprite_delta[0][1], |
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s->sprite_delta[1][0], s->sprite_delta[1][1], |
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a+1, (1<<(2*a+1)) - s->no_rounding, |
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s->h_edge_pos>>1, s->v_edge_pos>>1); |
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} |
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static inline int hpel_motion(MpegEncContext *s, |
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uint8_t *dest, uint8_t *src, |
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int field_based, int field_select, |
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int src_x, int src_y, |
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int width, int height, int stride, |
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int h_edge_pos, int v_edge_pos, |
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int w, int h, op_pixels_func *pix_op, |
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int motion_x, int motion_y) |
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{ |
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int dxy;
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int emu=0; |
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dxy = ((motion_y & 1) << 1) | (motion_x & 1); |
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src_x += motion_x >> 1;
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src_y += motion_y >> 1;
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/* WARNING: do no forget half pels */
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src_x = av_clip(src_x, -16, width); //FIXME unneeded for emu? |
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if (src_x == width)
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dxy &= ~1;
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src_y = av_clip(src_y, -16, height);
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if (src_y == height)
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dxy &= ~2;
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src += src_y * stride + src_x; |
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if(s->unrestricted_mv && (s->flags&CODEC_FLAG_EMU_EDGE)){
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if( (unsigned)src_x > h_edge_pos - (motion_x&1) - w |
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|| (unsigned)src_y > v_edge_pos - (motion_y&1) - h){ |
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s->dsp.emulated_edge_mc(s->edge_emu_buffer, src, s->linesize, w+1, (h+1)<<field_based, |
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src_x, src_y<<field_based, h_edge_pos, s->v_edge_pos); |
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src= s->edge_emu_buffer; |
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emu=1;
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} |
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} |
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if(field_select)
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src += s->linesize; |
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pix_op[dxy](dest, src, stride, h); |
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return emu;
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} |
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static av_always_inline
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void mpeg_motion_internal(MpegEncContext *s,
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uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, |
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int field_based, int bottom_field, int field_select, |
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uint8_t **ref_picture, op_pixels_func (*pix_op)[4],
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int motion_x, int motion_y, int h, int is_mpeg12, int mb_y) |
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{ |
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uint8_t *ptr_y, *ptr_cb, *ptr_cr; |
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int dxy, uvdxy, mx, my, src_x, src_y,
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uvsrc_x, uvsrc_y, v_edge_pos, uvlinesize, linesize; |
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#if 0
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if(s->quarter_sample)
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{
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motion_x>>=1;
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motion_y>>=1;
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}
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#endif
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v_edge_pos = s->v_edge_pos >> field_based; |
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linesize = s->current_picture.linesize[0] << field_based;
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uvlinesize = s->current_picture.linesize[1] << field_based;
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dxy = ((motion_y & 1) << 1) | (motion_x & 1); |
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src_x = s->mb_x* 16 + (motion_x >> 1); |
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src_y =( mb_y<<(4-field_based)) + (motion_y >> 1); |
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if (!is_mpeg12 && s->out_format == FMT_H263) {
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if((s->workaround_bugs & FF_BUG_HPEL_CHROMA) && field_based){
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mx = (motion_x>>1)|(motion_x&1); |
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my = motion_y >>1;
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uvdxy = ((my & 1) << 1) | (mx & 1); |
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uvsrc_x = s->mb_x* 8 + (mx >> 1); |
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uvsrc_y =( mb_y<<(3-field_based))+ (my >> 1); |
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}else{
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uvdxy = dxy | (motion_y & 2) | ((motion_x & 2) >> 1); |
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uvsrc_x = src_x>>1;
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uvsrc_y = src_y>>1;
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} |
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}else if(!is_mpeg12 && s->out_format == FMT_H261){//even chroma mv's are full pel in H261 |
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mx = motion_x / 4;
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my = motion_y / 4;
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uvdxy = 0;
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uvsrc_x = s->mb_x*8 + mx;
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uvsrc_y = mb_y*8 + my;
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} else {
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if(s->chroma_y_shift){
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mx = motion_x / 2;
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my = motion_y / 2;
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uvdxy = ((my & 1) << 1) | (mx & 1); |
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uvsrc_x = s->mb_x* 8 + (mx >> 1); |
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uvsrc_y =( mb_y<<(3-field_based))+ (my >> 1); |
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} else {
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if(s->chroma_x_shift){
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//Chroma422
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mx = motion_x / 2;
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uvdxy = ((motion_y & 1) << 1) | (mx & 1); |
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uvsrc_x = s->mb_x* 8 + (mx >> 1); |
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uvsrc_y = src_y; |
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} else {
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//Chroma444
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uvdxy = dxy; |
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uvsrc_x = src_x; |
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uvsrc_y = src_y; |
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} |
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} |
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} |
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ptr_y = ref_picture[0] + src_y * linesize + src_x;
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ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
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ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
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if( (unsigned)src_x > s->h_edge_pos - (motion_x&1) - 16 |
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|| (unsigned)src_y > v_edge_pos - (motion_y&1) - h){ |
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if(is_mpeg12 || s->codec_id == CODEC_ID_MPEG2VIDEO ||
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s->codec_id == CODEC_ID_MPEG1VIDEO){ |
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av_log(s->avctx,AV_LOG_DEBUG, |
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"MPEG motion vector out of boundary (%d %d)\n", src_x, src_y);
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return;
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} |
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s->dsp.emulated_edge_mc(s->edge_emu_buffer, ptr_y, s->linesize, |
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17, 17+field_based, |
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src_x, src_y<<field_based, |
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s->h_edge_pos, s->v_edge_pos); |
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ptr_y = s->edge_emu_buffer; |
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if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
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uint8_t *uvbuf= s->edge_emu_buffer+18*s->linesize;
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s->dsp.emulated_edge_mc(uvbuf , |
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ptr_cb, s->uvlinesize, |
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9, 9+field_based, |
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uvsrc_x, uvsrc_y<<field_based, |
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s->h_edge_pos>>1, s->v_edge_pos>>1); |
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s->dsp.emulated_edge_mc(uvbuf+16,
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ptr_cr, s->uvlinesize, |
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9, 9+field_based, |
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uvsrc_x, uvsrc_y<<field_based, |
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s->h_edge_pos>>1, s->v_edge_pos>>1); |
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ptr_cb= uvbuf; |
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ptr_cr= uvbuf+16;
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} |
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} |
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if(bottom_field){ //FIXME use this for field pix too instead of the obnoxious hack which changes picture.data |
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dest_y += s->linesize; |
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dest_cb+= s->uvlinesize; |
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dest_cr+= s->uvlinesize; |
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} |
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if(field_select){
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ptr_y += s->linesize; |
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ptr_cb+= s->uvlinesize; |
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ptr_cr+= s->uvlinesize; |
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} |
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pix_op[0][dxy](dest_y, ptr_y, linesize, h);
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if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
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pix_op[s->chroma_x_shift][uvdxy] |
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(dest_cb, ptr_cb, uvlinesize, h >> s->chroma_y_shift); |
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pix_op[s->chroma_x_shift][uvdxy] |
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(dest_cr, ptr_cr, uvlinesize, h >> s->chroma_y_shift); |
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} |
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if(!is_mpeg12 && (CONFIG_H261_ENCODER || CONFIG_H261_DECODER) &&
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s->out_format == FMT_H261){ |
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ff_h261_loop_filter(s); |
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} |
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} |
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/* apply one mpeg motion vector to the three components */
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static av_always_inline
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void mpeg_motion(MpegEncContext *s,
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uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, |
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int field_based, int bottom_field, int field_select, |
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uint8_t **ref_picture, op_pixels_func (*pix_op)[4],
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int motion_x, int motion_y, int h, int mb_y) |
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{ |
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#if !CONFIG_SMALL
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if(s->out_format == FMT_MPEG1)
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mpeg_motion_internal(s, dest_y, dest_cb, dest_cr, field_based, |
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bottom_field, field_select, ref_picture, pix_op, |
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motion_x, motion_y, h, 1, mb_y);
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else
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#endif
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mpeg_motion_internal(s, dest_y, dest_cb, dest_cr, field_based, |
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bottom_field, field_select, ref_picture, pix_op, |
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motion_x, motion_y, h, 0, mb_y);
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} |
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//FIXME move to dsputil, avg variant, 16x16 version
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static inline void put_obmc(uint8_t *dst, uint8_t *src[5], int stride){ |
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int x;
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uint8_t * const top = src[1]; |
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uint8_t * const left = src[2]; |
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uint8_t * const mid = src[0]; |
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uint8_t * const right = src[3]; |
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uint8_t * const bottom= src[4]; |
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#define OBMC_FILTER(x, t, l, m, r, b)\
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dst[x]= (t*top[x] + l*left[x] + m*mid[x] + r*right[x] + b*bottom[x] + 4)>>3 |
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#define OBMC_FILTER4(x, t, l, m, r, b)\
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OBMC_FILTER(x , t, l, m, r, b);\ |
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OBMC_FILTER(x+1 , t, l, m, r, b);\
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OBMC_FILTER(x +stride, t, l, m, r, b);\ |
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OBMC_FILTER(x+1+stride, t, l, m, r, b);
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x=0;
|
402 |
OBMC_FILTER (x , 2, 2, 4, 0, 0); |
403 |
OBMC_FILTER (x+1, 2, 1, 5, 0, 0); |
404 |
OBMC_FILTER4(x+2, 2, 1, 5, 0, 0); |
405 |
OBMC_FILTER4(x+4, 2, 0, 5, 1, 0); |
406 |
OBMC_FILTER (x+6, 2, 0, 5, 1, 0); |
407 |
OBMC_FILTER (x+7, 2, 0, 4, 2, 0); |
408 |
x+= stride; |
409 |
OBMC_FILTER (x , 1, 2, 5, 0, 0); |
410 |
OBMC_FILTER (x+1, 1, 2, 5, 0, 0); |
411 |
OBMC_FILTER (x+6, 1, 0, 5, 2, 0); |
412 |
OBMC_FILTER (x+7, 1, 0, 5, 2, 0); |
413 |
x+= stride; |
414 |
OBMC_FILTER4(x , 1, 2, 5, 0, 0); |
415 |
OBMC_FILTER4(x+2, 1, 1, 6, 0, 0); |
416 |
OBMC_FILTER4(x+4, 1, 0, 6, 1, 0); |
417 |
OBMC_FILTER4(x+6, 1, 0, 5, 2, 0); |
418 |
x+= 2*stride;
|
419 |
OBMC_FILTER4(x , 0, 2, 5, 0, 1); |
420 |
OBMC_FILTER4(x+2, 0, 1, 6, 0, 1); |
421 |
OBMC_FILTER4(x+4, 0, 0, 6, 1, 1); |
422 |
OBMC_FILTER4(x+6, 0, 0, 5, 2, 1); |
423 |
x+= 2*stride;
|
424 |
OBMC_FILTER (x , 0, 2, 5, 0, 1); |
425 |
OBMC_FILTER (x+1, 0, 2, 5, 0, 1); |
426 |
OBMC_FILTER4(x+2, 0, 1, 5, 0, 2); |
427 |
OBMC_FILTER4(x+4, 0, 0, 5, 1, 2); |
428 |
OBMC_FILTER (x+6, 0, 0, 5, 2, 1); |
429 |
OBMC_FILTER (x+7, 0, 0, 5, 2, 1); |
430 |
x+= stride; |
431 |
OBMC_FILTER (x , 0, 2, 4, 0, 2); |
432 |
OBMC_FILTER (x+1, 0, 1, 5, 0, 2); |
433 |
OBMC_FILTER (x+6, 0, 0, 5, 1, 2); |
434 |
OBMC_FILTER (x+7, 0, 0, 4, 2, 2); |
435 |
} |
436 |
|
437 |
/* obmc for 1 8x8 luma block */
|
438 |
static inline void obmc_motion(MpegEncContext *s, |
439 |
uint8_t *dest, uint8_t *src, |
440 |
int src_x, int src_y, |
441 |
op_pixels_func *pix_op, |
442 |
int16_t mv[5][2]/* mid top left right bottom*/) |
443 |
#define MID 0 |
444 |
{ |
445 |
int i;
|
446 |
uint8_t *ptr[5];
|
447 |
|
448 |
assert(s->quarter_sample==0);
|
449 |
|
450 |
for(i=0; i<5; i++){ |
451 |
if(i && mv[i][0]==mv[MID][0] && mv[i][1]==mv[MID][1]){ |
452 |
ptr[i]= ptr[MID]; |
453 |
}else{
|
454 |
ptr[i]= s->obmc_scratchpad + 8*(i&1) + s->linesize*8*(i>>1); |
455 |
hpel_motion(s, ptr[i], src, 0, 0, |
456 |
src_x, src_y, |
457 |
s->width, s->height, s->linesize, |
458 |
s->h_edge_pos, s->v_edge_pos, |
459 |
8, 8, pix_op, |
460 |
mv[i][0], mv[i][1]); |
461 |
} |
462 |
} |
463 |
|
464 |
put_obmc(dest, ptr, s->linesize); |
465 |
} |
466 |
|
467 |
static inline void qpel_motion(MpegEncContext *s, |
468 |
uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, |
469 |
int field_based, int bottom_field, int field_select, |
470 |
uint8_t **ref_picture, op_pixels_func (*pix_op)[4],
|
471 |
qpel_mc_func (*qpix_op)[16],
|
472 |
int motion_x, int motion_y, int h) |
473 |
{ |
474 |
uint8_t *ptr_y, *ptr_cb, *ptr_cr; |
475 |
int dxy, uvdxy, mx, my, src_x, src_y, uvsrc_x, uvsrc_y, v_edge_pos, linesize, uvlinesize;
|
476 |
|
477 |
dxy = ((motion_y & 3) << 2) | (motion_x & 3); |
478 |
src_x = s->mb_x * 16 + (motion_x >> 2); |
479 |
src_y = s->mb_y * (16 >> field_based) + (motion_y >> 2); |
480 |
|
481 |
v_edge_pos = s->v_edge_pos >> field_based; |
482 |
linesize = s->linesize << field_based; |
483 |
uvlinesize = s->uvlinesize << field_based; |
484 |
|
485 |
if(field_based){
|
486 |
mx= motion_x/2;
|
487 |
my= motion_y>>1;
|
488 |
}else if(s->workaround_bugs&FF_BUG_QPEL_CHROMA2){ |
489 |
static const int rtab[8]= {0,0,1,1,0,0,0,1}; |
490 |
mx= (motion_x>>1) + rtab[motion_x&7]; |
491 |
my= (motion_y>>1) + rtab[motion_y&7]; |
492 |
}else if(s->workaround_bugs&FF_BUG_QPEL_CHROMA){ |
493 |
mx= (motion_x>>1)|(motion_x&1); |
494 |
my= (motion_y>>1)|(motion_y&1); |
495 |
}else{
|
496 |
mx= motion_x/2;
|
497 |
my= motion_y/2;
|
498 |
} |
499 |
mx= (mx>>1)|(mx&1); |
500 |
my= (my>>1)|(my&1); |
501 |
|
502 |
uvdxy= (mx&1) | ((my&1)<<1); |
503 |
mx>>=1;
|
504 |
my>>=1;
|
505 |
|
506 |
uvsrc_x = s->mb_x * 8 + mx;
|
507 |
uvsrc_y = s->mb_y * (8 >> field_based) + my;
|
508 |
|
509 |
ptr_y = ref_picture[0] + src_y * linesize + src_x;
|
510 |
ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
|
511 |
ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
|
512 |
|
513 |
if( (unsigned)src_x > s->h_edge_pos - (motion_x&3) - 16 |
514 |
|| (unsigned)src_y > v_edge_pos - (motion_y&3) - h ){ |
515 |
s->dsp.emulated_edge_mc(s->edge_emu_buffer, ptr_y, s->linesize, |
516 |
17, 17+field_based, src_x, src_y<<field_based, |
517 |
s->h_edge_pos, s->v_edge_pos); |
518 |
ptr_y= s->edge_emu_buffer; |
519 |
if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
|
520 |
uint8_t *uvbuf= s->edge_emu_buffer + 18*s->linesize;
|
521 |
s->dsp.emulated_edge_mc(uvbuf, ptr_cb, s->uvlinesize, |
522 |
9, 9 + field_based, |
523 |
uvsrc_x, uvsrc_y<<field_based, |
524 |
s->h_edge_pos>>1, s->v_edge_pos>>1); |
525 |
s->dsp.emulated_edge_mc(uvbuf + 16, ptr_cr, s->uvlinesize,
|
526 |
9, 9 + field_based, |
527 |
uvsrc_x, uvsrc_y<<field_based, |
528 |
s->h_edge_pos>>1, s->v_edge_pos>>1); |
529 |
ptr_cb= uvbuf; |
530 |
ptr_cr= uvbuf + 16;
|
531 |
} |
532 |
} |
533 |
|
534 |
if(!field_based)
|
535 |
qpix_op[0][dxy](dest_y, ptr_y, linesize);
|
536 |
else{
|
537 |
if(bottom_field){
|
538 |
dest_y += s->linesize; |
539 |
dest_cb+= s->uvlinesize; |
540 |
dest_cr+= s->uvlinesize; |
541 |
} |
542 |
|
543 |
if(field_select){
|
544 |
ptr_y += s->linesize; |
545 |
ptr_cb += s->uvlinesize; |
546 |
ptr_cr += s->uvlinesize; |
547 |
} |
548 |
//damn interlaced mode
|
549 |
//FIXME boundary mirroring is not exactly correct here
|
550 |
qpix_op[1][dxy](dest_y , ptr_y , linesize);
|
551 |
qpix_op[1][dxy](dest_y+8, ptr_y+8, linesize); |
552 |
} |
553 |
if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
|
554 |
pix_op[1][uvdxy](dest_cr, ptr_cr, uvlinesize, h >> 1); |
555 |
pix_op[1][uvdxy](dest_cb, ptr_cb, uvlinesize, h >> 1); |
556 |
} |
557 |
} |
558 |
|
559 |
/**
|
560 |
* h263 chroma 4mv motion compensation.
|
561 |
*/
|
562 |
static inline void chroma_4mv_motion(MpegEncContext *s, |
563 |
uint8_t *dest_cb, uint8_t *dest_cr, |
564 |
uint8_t **ref_picture, |
565 |
op_pixels_func *pix_op, |
566 |
int mx, int my){ |
567 |
int dxy, emu=0, src_x, src_y, offset; |
568 |
uint8_t *ptr; |
569 |
|
570 |
/* In case of 8X8, we construct a single chroma motion vector
|
571 |
with a special rounding */
|
572 |
mx= ff_h263_round_chroma(mx); |
573 |
my= ff_h263_round_chroma(my); |
574 |
|
575 |
dxy = ((my & 1) << 1) | (mx & 1); |
576 |
mx >>= 1;
|
577 |
my >>= 1;
|
578 |
|
579 |
src_x = s->mb_x * 8 + mx;
|
580 |
src_y = s->mb_y * 8 + my;
|
581 |
src_x = av_clip(src_x, -8, (s->width >> 1)); |
582 |
if (src_x == (s->width >> 1)) |
583 |
dxy &= ~1;
|
584 |
src_y = av_clip(src_y, -8, (s->height >> 1)); |
585 |
if (src_y == (s->height >> 1)) |
586 |
dxy &= ~2;
|
587 |
|
588 |
offset = (src_y * (s->uvlinesize)) + src_x; |
589 |
ptr = ref_picture[1] + offset;
|
590 |
if(s->flags&CODEC_FLAG_EMU_EDGE){
|
591 |
if( (unsigned)src_x > (s->h_edge_pos>>1) - (dxy &1) - 8 |
592 |
|| (unsigned)src_y > (s->v_edge_pos>>1) - (dxy>>1) - 8){ |
593 |
s->dsp.emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, |
594 |
9, 9, src_x, src_y, |
595 |
s->h_edge_pos>>1, s->v_edge_pos>>1); |
596 |
ptr= s->edge_emu_buffer; |
597 |
emu=1;
|
598 |
} |
599 |
} |
600 |
pix_op[dxy](dest_cb, ptr, s->uvlinesize, 8);
|
601 |
|
602 |
ptr = ref_picture[2] + offset;
|
603 |
if(emu){
|
604 |
s->dsp.emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, |
605 |
9, 9, src_x, src_y, |
606 |
s->h_edge_pos>>1, s->v_edge_pos>>1); |
607 |
ptr= s->edge_emu_buffer; |
608 |
} |
609 |
pix_op[dxy](dest_cr, ptr, s->uvlinesize, 8);
|
610 |
} |
611 |
|
612 |
static inline void prefetch_motion(MpegEncContext *s, uint8_t **pix, int dir){ |
613 |
/* fetch pixels for estimated mv 4 macroblocks ahead
|
614 |
* optimized for 64byte cache lines */
|
615 |
const int shift = s->quarter_sample ? 2 : 1; |
616 |
const int mx= (s->mv[dir][0][0]>>shift) + 16*s->mb_x + 8; |
617 |
const int my= (s->mv[dir][0][1]>>shift) + 16*s->mb_y; |
618 |
int off= mx + (my + (s->mb_x&3)*4)*s->linesize + 64; |
619 |
s->dsp.prefetch(pix[0]+off, s->linesize, 4); |
620 |
off= (mx>>1) + ((my>>1) + (s->mb_x&7))*s->uvlinesize + 64; |
621 |
s->dsp.prefetch(pix[1]+off, pix[2]-pix[1], 2); |
622 |
} |
623 |
|
624 |
/**
|
625 |
* motion compensation of a single macroblock
|
626 |
* @param s context
|
627 |
* @param dest_y luma destination pointer
|
628 |
* @param dest_cb chroma cb/u destination pointer
|
629 |
* @param dest_cr chroma cr/v destination pointer
|
630 |
* @param dir direction (0->forward, 1->backward)
|
631 |
* @param ref_picture array[3] of pointers to the 3 planes of the reference picture
|
632 |
* @param pix_op halfpel motion compensation function (average or put normally)
|
633 |
* @param qpix_op qpel motion compensation function (average or put normally)
|
634 |
* the motion vectors are taken from s->mv and the MV type from s->mv_type
|
635 |
*/
|
636 |
static av_always_inline void MPV_motion_internal(MpegEncContext *s, |
637 |
uint8_t *dest_y, uint8_t *dest_cb, |
638 |
uint8_t *dest_cr, int dir,
|
639 |
uint8_t **ref_picture, |
640 |
op_pixels_func (*pix_op)[4],
|
641 |
qpel_mc_func (*qpix_op)[16], int is_mpeg12) |
642 |
{ |
643 |
int dxy, mx, my, src_x, src_y, motion_x, motion_y;
|
644 |
int mb_x, mb_y, i;
|
645 |
uint8_t *ptr, *dest; |
646 |
|
647 |
mb_x = s->mb_x; |
648 |
mb_y = s->mb_y; |
649 |
|
650 |
prefetch_motion(s, ref_picture, dir); |
651 |
|
652 |
if(!is_mpeg12 && s->obmc && s->pict_type != FF_B_TYPE){
|
653 |
int16_t mv_cache[4][4][2]; |
654 |
const int xy= s->mb_x + s->mb_y*s->mb_stride; |
655 |
const int mot_stride= s->b8_stride; |
656 |
const int mot_xy= mb_x*2 + mb_y*2*mot_stride; |
657 |
|
658 |
assert(!s->mb_skipped); |
659 |
|
660 |
memcpy(mv_cache[1][1], s->current_picture.motion_val[0][mot_xy ], sizeof(int16_t)*4); |
661 |
memcpy(mv_cache[2][1], s->current_picture.motion_val[0][mot_xy+mot_stride], sizeof(int16_t)*4); |
662 |
memcpy(mv_cache[3][1], s->current_picture.motion_val[0][mot_xy+mot_stride], sizeof(int16_t)*4); |
663 |
|
664 |
if(mb_y==0 || IS_INTRA(s->current_picture.mb_type[xy-s->mb_stride])){ |
665 |
memcpy(mv_cache[0][1], mv_cache[1][1], sizeof(int16_t)*4); |
666 |
}else{
|
667 |
memcpy(mv_cache[0][1], s->current_picture.motion_val[0][mot_xy-mot_stride], sizeof(int16_t)*4); |
668 |
} |
669 |
|
670 |
if(mb_x==0 || IS_INTRA(s->current_picture.mb_type[xy-1])){ |
671 |
AV_COPY32(mv_cache[1][0], mv_cache[1][1]); |
672 |
AV_COPY32(mv_cache[2][0], mv_cache[2][1]); |
673 |
}else{
|
674 |
AV_COPY32(mv_cache[1][0], s->current_picture.motion_val[0][mot_xy-1]); |
675 |
AV_COPY32(mv_cache[2][0], s->current_picture.motion_val[0][mot_xy-1+mot_stride]); |
676 |
} |
677 |
|
678 |
if(mb_x+1>=s->mb_width || IS_INTRA(s->current_picture.mb_type[xy+1])){ |
679 |
AV_COPY32(mv_cache[1][3], mv_cache[1][2]); |
680 |
AV_COPY32(mv_cache[2][3], mv_cache[2][2]); |
681 |
}else{
|
682 |
AV_COPY32(mv_cache[1][3], s->current_picture.motion_val[0][mot_xy+2]); |
683 |
AV_COPY32(mv_cache[2][3], s->current_picture.motion_val[0][mot_xy+2+mot_stride]); |
684 |
} |
685 |
|
686 |
mx = 0;
|
687 |
my = 0;
|
688 |
for(i=0;i<4;i++) { |
689 |
const int x= (i&1)+1; |
690 |
const int y= (i>>1)+1; |
691 |
int16_t mv[5][2]= { |
692 |
{mv_cache[y][x ][0], mv_cache[y][x ][1]}, |
693 |
{mv_cache[y-1][x][0], mv_cache[y-1][x][1]}, |
694 |
{mv_cache[y][x-1][0], mv_cache[y][x-1][1]}, |
695 |
{mv_cache[y][x+1][0], mv_cache[y][x+1][1]}, |
696 |
{mv_cache[y+1][x][0], mv_cache[y+1][x][1]}}; |
697 |
//FIXME cleanup
|
698 |
obmc_motion(s, dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize, |
699 |
ref_picture[0],
|
700 |
mb_x * 16 + (i & 1) * 8, mb_y * 16 + (i >>1) * 8, |
701 |
pix_op[1],
|
702 |
mv); |
703 |
|
704 |
mx += mv[0][0]; |
705 |
my += mv[0][1]; |
706 |
} |
707 |
if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY))
|
708 |
chroma_4mv_motion(s, dest_cb, dest_cr, ref_picture, pix_op[1], mx, my);
|
709 |
|
710 |
return;
|
711 |
} |
712 |
|
713 |
switch(s->mv_type) {
|
714 |
case MV_TYPE_16X16:
|
715 |
if(s->mcsel){
|
716 |
if(s->real_sprite_warping_points==1){ |
717 |
gmc1_motion(s, dest_y, dest_cb, dest_cr, |
718 |
ref_picture); |
719 |
}else{
|
720 |
gmc_motion(s, dest_y, dest_cb, dest_cr, |
721 |
ref_picture); |
722 |
} |
723 |
}else if(!is_mpeg12 && s->quarter_sample){ |
724 |
qpel_motion(s, dest_y, dest_cb, dest_cr, |
725 |
0, 0, 0, |
726 |
ref_picture, pix_op, qpix_op, |
727 |
s->mv[dir][0][0], s->mv[dir][0][1], 16); |
728 |
}else if(!is_mpeg12 && (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) && s->mspel){ |
729 |
ff_mspel_motion(s, dest_y, dest_cb, dest_cr, |
730 |
ref_picture, pix_op, |
731 |
s->mv[dir][0][0], s->mv[dir][0][1], 16); |
732 |
}else
|
733 |
{ |
734 |
mpeg_motion(s, dest_y, dest_cb, dest_cr, |
735 |
0, 0, 0, |
736 |
ref_picture, pix_op, |
737 |
s->mv[dir][0][0], s->mv[dir][0][1], 16, mb_y); |
738 |
} |
739 |
break;
|
740 |
case MV_TYPE_8X8:
|
741 |
if (!is_mpeg12) {
|
742 |
mx = 0;
|
743 |
my = 0;
|
744 |
if(s->quarter_sample){
|
745 |
for(i=0;i<4;i++) { |
746 |
motion_x = s->mv[dir][i][0];
|
747 |
motion_y = s->mv[dir][i][1];
|
748 |
|
749 |
dxy = ((motion_y & 3) << 2) | (motion_x & 3); |
750 |
src_x = mb_x * 16 + (motion_x >> 2) + (i & 1) * 8; |
751 |
src_y = mb_y * 16 + (motion_y >> 2) + (i >>1) * 8; |
752 |
|
753 |
/* WARNING: do no forget half pels */
|
754 |
src_x = av_clip(src_x, -16, s->width);
|
755 |
if (src_x == s->width)
|
756 |
dxy &= ~3;
|
757 |
src_y = av_clip(src_y, -16, s->height);
|
758 |
if (src_y == s->height)
|
759 |
dxy &= ~12;
|
760 |
|
761 |
ptr = ref_picture[0] + (src_y * s->linesize) + (src_x);
|
762 |
if(s->flags&CODEC_FLAG_EMU_EDGE){
|
763 |
if( (unsigned)src_x > s->h_edge_pos - (motion_x&3) - 8 |
764 |
|| (unsigned)src_y > s->v_edge_pos - (motion_y&3) - 8 ){ |
765 |
s->dsp.emulated_edge_mc(s->edge_emu_buffer, ptr, |
766 |
s->linesize, 9, 9, |
767 |
src_x, src_y, |
768 |
s->h_edge_pos, s->v_edge_pos); |
769 |
ptr= s->edge_emu_buffer; |
770 |
} |
771 |
} |
772 |
dest = dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize; |
773 |
qpix_op[1][dxy](dest, ptr, s->linesize);
|
774 |
|
775 |
mx += s->mv[dir][i][0]/2; |
776 |
my += s->mv[dir][i][1]/2; |
777 |
} |
778 |
}else{
|
779 |
for(i=0;i<4;i++) { |
780 |
hpel_motion(s, dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize, |
781 |
ref_picture[0], 0, 0, |
782 |
mb_x * 16 + (i & 1) * 8, mb_y * 16 + (i >>1) * 8, |
783 |
s->width, s->height, s->linesize, |
784 |
s->h_edge_pos, s->v_edge_pos, |
785 |
8, 8, pix_op[1], |
786 |
s->mv[dir][i][0], s->mv[dir][i][1]); |
787 |
|
788 |
mx += s->mv[dir][i][0];
|
789 |
my += s->mv[dir][i][1];
|
790 |
} |
791 |
} |
792 |
|
793 |
if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY))
|
794 |
chroma_4mv_motion(s, dest_cb, dest_cr, ref_picture, pix_op[1], mx, my);
|
795 |
} |
796 |
break;
|
797 |
case MV_TYPE_FIELD:
|
798 |
if (s->picture_structure == PICT_FRAME) {
|
799 |
if(!is_mpeg12 && s->quarter_sample){
|
800 |
for(i=0; i<2; i++){ |
801 |
qpel_motion(s, dest_y, dest_cb, dest_cr, |
802 |
1, i, s->field_select[dir][i],
|
803 |
ref_picture, pix_op, qpix_op, |
804 |
s->mv[dir][i][0], s->mv[dir][i][1], 8); |
805 |
} |
806 |
}else{
|
807 |
/* top field */
|
808 |
mpeg_motion(s, dest_y, dest_cb, dest_cr, |
809 |
1, 0, s->field_select[dir][0], |
810 |
ref_picture, pix_op, |
811 |
s->mv[dir][0][0], s->mv[dir][0][1], 8, mb_y); |
812 |
/* bottom field */
|
813 |
mpeg_motion(s, dest_y, dest_cb, dest_cr, |
814 |
1, 1, s->field_select[dir][1], |
815 |
ref_picture, pix_op, |
816 |
s->mv[dir][1][0], s->mv[dir][1][1], 8, mb_y); |
817 |
} |
818 |
} else {
|
819 |
if(s->picture_structure != s->field_select[dir][0] + 1 && s->pict_type != FF_B_TYPE && !s->first_field){ |
820 |
ref_picture= s->current_picture_ptr->data; |
821 |
} |
822 |
|
823 |
mpeg_motion(s, dest_y, dest_cb, dest_cr, |
824 |
0, 0, s->field_select[dir][0], |
825 |
ref_picture, pix_op, |
826 |
s->mv[dir][0][0], s->mv[dir][0][1], 16, mb_y>>1); |
827 |
} |
828 |
break;
|
829 |
case MV_TYPE_16X8:
|
830 |
for(i=0; i<2; i++){ |
831 |
uint8_t ** ref2picture; |
832 |
|
833 |
if(s->picture_structure == s->field_select[dir][i] + 1 |
834 |
|| s->pict_type == FF_B_TYPE || s->first_field){ |
835 |
ref2picture= ref_picture; |
836 |
}else{
|
837 |
ref2picture= s->current_picture_ptr->data; |
838 |
} |
839 |
|
840 |
mpeg_motion(s, dest_y, dest_cb, dest_cr, |
841 |
0, 0, s->field_select[dir][i], |
842 |
ref2picture, pix_op, |
843 |
s->mv[dir][i][0], s->mv[dir][i][1] + 16*i, 8, mb_y>>1); |
844 |
|
845 |
dest_y += 16*s->linesize;
|
846 |
dest_cb+= (16>>s->chroma_y_shift)*s->uvlinesize;
|
847 |
dest_cr+= (16>>s->chroma_y_shift)*s->uvlinesize;
|
848 |
} |
849 |
break;
|
850 |
case MV_TYPE_DMV:
|
851 |
if(s->picture_structure == PICT_FRAME){
|
852 |
for(i=0; i<2; i++){ |
853 |
int j;
|
854 |
for(j=0; j<2; j++){ |
855 |
mpeg_motion(s, dest_y, dest_cb, dest_cr, |
856 |
1, j, j^i,
|
857 |
ref_picture, pix_op, |
858 |
s->mv[dir][2*i + j][0], s->mv[dir][2*i + j][1], 8, mb_y); |
859 |
} |
860 |
pix_op = s->dsp.avg_pixels_tab; |
861 |
} |
862 |
}else{
|
863 |
for(i=0; i<2; i++){ |
864 |
mpeg_motion(s, dest_y, dest_cb, dest_cr, |
865 |
0, 0, s->picture_structure != i+1, |
866 |
ref_picture, pix_op, |
867 |
s->mv[dir][2*i][0],s->mv[dir][2*i][1],16, mb_y>>1); |
868 |
|
869 |
// after put we make avg of the same block
|
870 |
pix_op=s->dsp.avg_pixels_tab; |
871 |
|
872 |
//opposite parity is always in the same frame if this is second field
|
873 |
if(!s->first_field){
|
874 |
ref_picture = s->current_picture_ptr->data; |
875 |
} |
876 |
} |
877 |
} |
878 |
break;
|
879 |
default: assert(0); |
880 |
} |
881 |
} |
882 |
|
883 |
static inline void MPV_motion(MpegEncContext *s, |
884 |
uint8_t *dest_y, uint8_t *dest_cb, |
885 |
uint8_t *dest_cr, int dir,
|
886 |
uint8_t **ref_picture, |
887 |
op_pixels_func (*pix_op)[4],
|
888 |
qpel_mc_func (*qpix_op)[16])
|
889 |
{ |
890 |
#if !CONFIG_SMALL
|
891 |
if(s->out_format == FMT_MPEG1)
|
892 |
MPV_motion_internal(s, dest_y, dest_cb, dest_cr, dir, |
893 |
ref_picture, pix_op, qpix_op, 1);
|
894 |
else
|
895 |
#endif
|
896 |
MPV_motion_internal(s, dest_y, dest_cb, dest_cr, dir, |
897 |
ref_picture, pix_op, qpix_op, 0);
|
898 |
} |
899 |
#endif /* AVCODEC_MPEGVIDEO_COMMON_H */ |