mpegvideo_common.h
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上传日期:2022-07-11
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- /*
- * The simplest mpeg encoder (well, it was the simplest!)
- * Copyright (c) 2000,2001 Fabrice Bellard.
- * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
- *
- * 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
- /**
- * @file mpegvideo_common.h
- * The simplest mpeg encoder (well, it was the simplest!).
- */
- #ifndef AVCODEC_MPEGVIDEO_COMMON_H
- #define AVCODEC_MPEGVIDEO_COMMON_H
- #include "avcodec.h"
- #include "dsputil.h"
- #include "mpegvideo.h"
- //#include "mjpegenc.h"
- //#include "msmpeg4.h"
- //#include "faandct.h"
- #include <limits.h>
- int dct_quantize_c(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
- int dct_quantize_trellis_c(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
- void denoise_dct_c(MpegEncContext *s, DCTELEM *block);
- /**
- * allocates a Picture
- * The pixels are allocated/set by calling get_buffer() if shared=0
- */
- int alloc_picture(MpegEncContext *s, Picture *pic, int shared);
- /**
- * sets the given MpegEncContext to common defaults (same for encoding and decoding).
- * the changed fields will not depend upon the prior state of the MpegEncContext.
- */
- void MPV_common_defaults(MpegEncContext *s);
- static inline void gmc1_motion(MpegEncContext *s,
- uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
- uint8_t **ref_picture)
- {
- uint8_t *ptr;
- int offset, src_x, src_y, linesize, uvlinesize;
- int motion_x, motion_y;
- int emu=0;
- motion_x= s->sprite_offset[0][0];
- motion_y= s->sprite_offset[0][1];
- src_x = s->mb_x * 16 + (motion_x >> (s->sprite_warping_accuracy+1));
- src_y = s->mb_y * 16 + (motion_y >> (s->sprite_warping_accuracy+1));
- motion_x<<=(3-s->sprite_warping_accuracy);
- motion_y<<=(3-s->sprite_warping_accuracy);
- src_x = av_clip(src_x, -16, s->width);
- if (src_x == s->width)
- motion_x =0;
- src_y = av_clip(src_y, -16, s->height);
- if (src_y == s->height)
- motion_y =0;
- linesize = s->linesize;
- uvlinesize = s->uvlinesize;
- ptr = ref_picture[0] + (src_y * linesize) + src_x;
- if(s->flags&CODEC_FLAG_EMU_EDGE){
- if( src_x >= s->h_edge_pos - 17
- || src_y >= s->v_edge_pos - 17){
- ff_emulated_edge_mc(s->edge_emu_buffer, ptr, linesize, 17, 17, src_x, src_y, s->h_edge_pos, s->v_edge_pos);
- ptr= s->edge_emu_buffer;
- }
- }
- if((motion_x|motion_y)&7){
- s->dsp.gmc1(dest_y , ptr , linesize, 16, motion_x&15, motion_y&15, 128 - s->no_rounding);
- s->dsp.gmc1(dest_y+8, ptr+8, linesize, 16, motion_x&15, motion_y&15, 128 - s->no_rounding);
- }else{
- int dxy;
- dxy= ((motion_x>>3)&1) | ((motion_y>>2)&2);
- if (s->no_rounding){
- s->dsp.put_no_rnd_pixels_tab[0][dxy](dest_y, ptr, linesize, 16);
- }else{
- s->dsp.put_pixels_tab [0][dxy](dest_y, ptr, linesize, 16);
- }
- }
- if(ENABLE_GRAY && s->flags&CODEC_FLAG_GRAY) return;
- motion_x= s->sprite_offset[1][0];
- motion_y= s->sprite_offset[1][1];
- src_x = s->mb_x * 8 + (motion_x >> (s->sprite_warping_accuracy+1));
- src_y = s->mb_y * 8 + (motion_y >> (s->sprite_warping_accuracy+1));
- motion_x<<=(3-s->sprite_warping_accuracy);
- motion_y<<=(3-s->sprite_warping_accuracy);
- src_x = av_clip(src_x, -8, s->width>>1);
- if (src_x == s->width>>1)
- motion_x =0;
- src_y = av_clip(src_y, -8, s->height>>1);
- if (src_y == s->height>>1)
- motion_y =0;
- offset = (src_y * uvlinesize) + src_x;
- ptr = ref_picture[1] + offset;
- if(s->flags&CODEC_FLAG_EMU_EDGE){
- if( src_x >= (s->h_edge_pos>>1) - 9
- || src_y >= (s->v_edge_pos>>1) - 9){
- ff_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);
- ptr= s->edge_emu_buffer;
- emu=1;
- }
- }
- s->dsp.gmc1(dest_cb, ptr, uvlinesize, 8, motion_x&15, motion_y&15, 128 - s->no_rounding);
- ptr = ref_picture[2] + offset;
- if(emu){
- ff_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);
- ptr= s->edge_emu_buffer;
- }
- s->dsp.gmc1(dest_cr, ptr, uvlinesize, 8, motion_x&15, motion_y&15, 128 - s->no_rounding);
- return;
- }
- static inline void gmc_motion(MpegEncContext *s,
- uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
- uint8_t **ref_picture)
- {
- uint8_t *ptr;
- int linesize, uvlinesize;
- const int a= s->sprite_warping_accuracy;
- int ox, oy;
- linesize = s->linesize;
- uvlinesize = s->uvlinesize;
- ptr = ref_picture[0];
- ox= s->sprite_offset[0][0] + s->sprite_delta[0][0]*s->mb_x*16 + s->sprite_delta[0][1]*s->mb_y*16;
- oy= s->sprite_offset[0][1] + s->sprite_delta[1][0]*s->mb_x*16 + s->sprite_delta[1][1]*s->mb_y*16;
- s->dsp.gmc(dest_y, ptr, linesize, 16,
- ox,
- oy,
- s->sprite_delta[0][0], s->sprite_delta[0][1],
- s->sprite_delta[1][0], s->sprite_delta[1][1],
- a+1, (1<<(2*a+1)) - s->no_rounding,
- s->h_edge_pos, s->v_edge_pos);
- s->dsp.gmc(dest_y+8, ptr, linesize, 16,
- ox + s->sprite_delta[0][0]*8,
- oy + s->sprite_delta[1][0]*8,
- s->sprite_delta[0][0], s->sprite_delta[0][1],
- s->sprite_delta[1][0], s->sprite_delta[1][1],
- a+1, (1<<(2*a+1)) - s->no_rounding,
- s->h_edge_pos, s->v_edge_pos);
- if(ENABLE_GRAY && s->flags&CODEC_FLAG_GRAY) return;
- ox= s->sprite_offset[1][0] + s->sprite_delta[0][0]*s->mb_x*8 + s->sprite_delta[0][1]*s->mb_y*8;
- oy= s->sprite_offset[1][1] + s->sprite_delta[1][0]*s->mb_x*8 + s->sprite_delta[1][1]*s->mb_y*8;
- ptr = ref_picture[1];
- s->dsp.gmc(dest_cb, ptr, uvlinesize, 8,
- ox,
- oy,
- s->sprite_delta[0][0], s->sprite_delta[0][1],
- s->sprite_delta[1][0], s->sprite_delta[1][1],
- a+1, (1<<(2*a+1)) - s->no_rounding,
- s->h_edge_pos>>1, s->v_edge_pos>>1);
- ptr = ref_picture[2];
- s->dsp.gmc(dest_cr, ptr, uvlinesize, 8,
- ox,
- oy,
- s->sprite_delta[0][0], s->sprite_delta[0][1],
- s->sprite_delta[1][0], s->sprite_delta[1][1],
- a+1, (1<<(2*a+1)) - s->no_rounding,
- s->h_edge_pos>>1, s->v_edge_pos>>1);
- }
- static inline int hpel_motion(MpegEncContext *s,
- uint8_t *dest, uint8_t *src,
- int field_based, int field_select,
- int src_x, int src_y,
- int width, int height, int stride,
- int h_edge_pos, int v_edge_pos,
- int w, int h, op_pixels_func *pix_op,
- int motion_x, int motion_y)
- {
- int dxy;
- int emu=0;
- dxy = ((motion_y & 1) << 1) | (motion_x & 1);
- src_x += motion_x >> 1;
- src_y += motion_y >> 1;
- /* WARNING: do no forget half pels */
- src_x = av_clip(src_x, -16, width); //FIXME unneeded for emu?
- if (src_x == width)
- dxy &= ~1;
- src_y = av_clip(src_y, -16, height);
- if (src_y == height)
- dxy &= ~2;
- src += src_y * stride + src_x;
- if(s->unrestricted_mv && (s->flags&CODEC_FLAG_EMU_EDGE)){
- if( src_x > h_edge_pos - (motion_x&1) - w
- || src_y > v_edge_pos - (motion_y&1) - h){
- ff_emulated_edge_mc(s->edge_emu_buffer, src, s->linesize, w+1, (h+1)<<field_based,
- src_x, src_y<<field_based, h_edge_pos, s->v_edge_pos);
- src= s->edge_emu_buffer;
- emu=1;
- }
- }
- if(field_select)
- src += s->linesize;
- pix_op[dxy](dest, src, stride, h);
- return emu;
- }
- static av_always_inline
- void mpeg_motion_internal(MpegEncContext *s,
- uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
- int field_based, int bottom_field, int field_select,
- uint8_t **ref_picture, op_pixels_func (*pix_op)[4],
- int motion_x, int motion_y, int h, int is_mpeg12)
- {
- uint8_t *ptr_y, *ptr_cb, *ptr_cr;
- int dxy, uvdxy, mx, my, src_x, src_y,
- uvsrc_x, uvsrc_y, v_edge_pos, uvlinesize, linesize;
- #if 0
- if(s->quarter_sample)
- {
- motion_x>>=1;
- motion_y>>=1;
- }
- #endif
- v_edge_pos = s->v_edge_pos >> field_based;
- linesize = s->current_picture.linesize[0] << field_based;
- uvlinesize = s->current_picture.linesize[1] << field_based;
- dxy = ((motion_y & 1) << 1) | (motion_x & 1);
- src_x = s->mb_x* 16 + (motion_x >> 1);
- src_y =(s->mb_y<<(4-field_based)) + (motion_y >> 1);
- if (!is_mpeg12 && s->out_format == FMT_H263) {
- if((s->workaround_bugs & FF_BUG_HPEL_CHROMA) && field_based){
- mx = (motion_x>>1)|(motion_x&1);
- my = motion_y >>1;
- uvdxy = ((my & 1) << 1) | (mx & 1);
- uvsrc_x = s->mb_x* 8 + (mx >> 1);
- uvsrc_y = (s->mb_y<<(3-field_based)) + (my >> 1);
- }else{
- uvdxy = dxy | (motion_y & 2) | ((motion_x & 2) >> 1);
- uvsrc_x = src_x>>1;
- uvsrc_y = src_y>>1;
- }
- }else if(!is_mpeg12 && s->out_format == FMT_H261){//even chroma mv's are full pel in H261
- mx = motion_x / 4;
- my = motion_y / 4;
- uvdxy = 0;
- uvsrc_x = s->mb_x*8 + mx;
- uvsrc_y = s->mb_y*8 + my;
- } else {
- if(s->chroma_y_shift){
- mx = motion_x / 2;
- my = motion_y / 2;
- uvdxy = ((my & 1) << 1) | (mx & 1);
- uvsrc_x = s->mb_x* 8 + (mx >> 1);
- uvsrc_y = (s->mb_y<<(3-field_based)) + (my >> 1);
- } else {
- if(s->chroma_x_shift){
- //Chroma422
- mx = motion_x / 2;
- uvdxy = ((motion_y & 1) << 1) | (mx & 1);
- uvsrc_x = s->mb_x* 8 + (mx >> 1);
- uvsrc_y = src_y;
- } else {
- //Chroma444
- uvdxy = dxy;
- uvsrc_x = src_x;
- uvsrc_y = src_y;
- }
- }
- }
- ptr_y = ref_picture[0] + src_y * linesize + src_x;
- ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
- ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
- if( src_x > s->h_edge_pos - (motion_x&1) - 16
- || src_y > v_edge_pos - (motion_y&1) - h){
- if(is_mpeg12 || s->codec_id == CODEC_ID_MPEG2VIDEO ||
- s->codec_id == CODEC_ID_MPEG1VIDEO){
- av_log(s->avctx,AV_LOG_DEBUG,
- "MPEG motion vector out of boundaryn");
- return ;
- }
- ff_emulated_edge_mc(s->edge_emu_buffer, ptr_y, s->linesize,
- 17, 17+field_based,
- src_x, src_y<<field_based,
- s->h_edge_pos, s->v_edge_pos);
- ptr_y = s->edge_emu_buffer;
- if(!ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
- uint8_t *uvbuf= s->edge_emu_buffer+18*s->linesize;
- ff_emulated_edge_mc(uvbuf ,
- ptr_cb, s->uvlinesize,
- 9, 9+field_based,
- uvsrc_x, uvsrc_y<<field_based,
- s->h_edge_pos>>1, s->v_edge_pos>>1);
- ff_emulated_edge_mc(uvbuf+16,
- ptr_cr, s->uvlinesize,
- 9, 9+field_based,
- uvsrc_x, uvsrc_y<<field_based,
- s->h_edge_pos>>1, s->v_edge_pos>>1);
- ptr_cb= uvbuf;
- ptr_cr= uvbuf+16;
- }
- }
- if(bottom_field){ //FIXME use this for field pix too instead of the obnoxious hack which changes picture.data
- dest_y += s->linesize;
- dest_cb+= s->uvlinesize;
- dest_cr+= s->uvlinesize;
- }
- if(field_select){
- ptr_y += s->linesize;
- ptr_cb+= s->uvlinesize;
- ptr_cr+= s->uvlinesize;
- }
- pix_op[0][dxy](dest_y, ptr_y, linesize, h);
- if(!ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
- pix_op[s->chroma_x_shift][uvdxy]
- (dest_cb, ptr_cb, uvlinesize, h >> s->chroma_y_shift);
- pix_op[s->chroma_x_shift][uvdxy]
- (dest_cr, ptr_cr, uvlinesize, h >> s->chroma_y_shift);
- }
-
- /*if(!is_mpeg12 && (ENABLE_H261_ENCODER || ENABLE_H261_DECODER) && s->out_format == FMT_H261)
- {
- ff_h261_loop_filter(s);
- }*/
- }
- /* apply one mpeg motion vector to the three components */
- static av_always_inline
- void mpeg_motion(MpegEncContext *s,
- uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
- int field_based, int bottom_field, int field_select,
- uint8_t **ref_picture, op_pixels_func (*pix_op)[4],
- int motion_x, int motion_y, int h)
- {
- #ifndef CONFIG_SMALL
- if(s->out_format == FMT_MPEG1)
- mpeg_motion_internal(s, dest_y, dest_cb, dest_cr, field_based,
- bottom_field, field_select, ref_picture, pix_op,
- motion_x, motion_y, h, 1);
- else
- #endif
- mpeg_motion_internal(s, dest_y, dest_cb, dest_cr, field_based,
- bottom_field, field_select, ref_picture, pix_op,
- motion_x, motion_y, h, 0);
- }
- //FIXME move to dsputil, avg variant, 16x16 version
- static inline void put_obmc(uint8_t *dst, uint8_t *src[5], int stride){
- int x;
- uint8_t * const top = src[1];
- uint8_t * const left = src[2];
- uint8_t * const mid = src[0];
- uint8_t * const right = src[3];
- uint8_t * const bottom= src[4];
- #define OBMC_FILTER(x, t, l, m, r, b)
- dst[x]= (t*top[x] + l*left[x] + m*mid[x] + r*right[x] + b*bottom[x] + 4)>>3
- #define OBMC_FILTER4(x, t, l, m, r, b)
- OBMC_FILTER(x , t, l, m, r, b);
- OBMC_FILTER(x+1 , t, l, m, r, b);
- OBMC_FILTER(x +stride, t, l, m, r, b);
- OBMC_FILTER(x+1+stride, t, l, m, r, b);
- x=0;
- OBMC_FILTER (x , 2, 2, 4, 0, 0);
- OBMC_FILTER (x+1, 2, 1, 5, 0, 0);
- OBMC_FILTER4(x+2, 2, 1, 5, 0, 0);
- OBMC_FILTER4(x+4, 2, 0, 5, 1, 0);
- OBMC_FILTER (x+6, 2, 0, 5, 1, 0);
- OBMC_FILTER (x+7, 2, 0, 4, 2, 0);
- x+= stride;
- OBMC_FILTER (x , 1, 2, 5, 0, 0);
- OBMC_FILTER (x+1, 1, 2, 5, 0, 0);
- OBMC_FILTER (x+6, 1, 0, 5, 2, 0);
- OBMC_FILTER (x+7, 1, 0, 5, 2, 0);
- x+= stride;
- OBMC_FILTER4(x , 1, 2, 5, 0, 0);
- OBMC_FILTER4(x+2, 1, 1, 6, 0, 0);
- OBMC_FILTER4(x+4, 1, 0, 6, 1, 0);
- OBMC_FILTER4(x+6, 1, 0, 5, 2, 0);
- x+= 2*stride;
- OBMC_FILTER4(x , 0, 2, 5, 0, 1);
- OBMC_FILTER4(x+2, 0, 1, 6, 0, 1);
- OBMC_FILTER4(x+4, 0, 0, 6, 1, 1);
- OBMC_FILTER4(x+6, 0, 0, 5, 2, 1);
- x+= 2*stride;
- OBMC_FILTER (x , 0, 2, 5, 0, 1);
- OBMC_FILTER (x+1, 0, 2, 5, 0, 1);
- OBMC_FILTER4(x+2, 0, 1, 5, 0, 2);
- OBMC_FILTER4(x+4, 0, 0, 5, 1, 2);
- OBMC_FILTER (x+6, 0, 0, 5, 2, 1);
- OBMC_FILTER (x+7, 0, 0, 5, 2, 1);
- x+= stride;
- OBMC_FILTER (x , 0, 2, 4, 0, 2);
- OBMC_FILTER (x+1, 0, 1, 5, 0, 2);
- OBMC_FILTER (x+6, 0, 0, 5, 1, 2);
- OBMC_FILTER (x+7, 0, 0, 4, 2, 2);
- }
- /* obmc for 1 8x8 luma block */
- static inline void obmc_motion(MpegEncContext *s,
- uint8_t *dest, uint8_t *src,
- int src_x, int src_y,
- op_pixels_func *pix_op,
- int16_t mv[5][2]/* mid top left right bottom*/)
- #define MID 0
- {
- int i;
- uint8_t *ptr[5];
- assert(s->quarter_sample==0);
- for(i=0; i<5; i++){
- if(i && mv[i][0]==mv[MID][0] && mv[i][1]==mv[MID][1]){
- ptr[i]= ptr[MID];
- }else{
- ptr[i]= s->obmc_scratchpad + 8*(i&1) + s->linesize*8*(i>>1);
- hpel_motion(s, ptr[i], src, 0, 0,
- src_x, src_y,
- s->width, s->height, s->linesize,
- s->h_edge_pos, s->v_edge_pos,
- 8, 8, pix_op,
- mv[i][0], mv[i][1]);
- }
- }
- put_obmc(dest, ptr, s->linesize);
- }
- static inline void qpel_motion(MpegEncContext *s,
- uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
- int field_based, int bottom_field, int field_select,
- uint8_t **ref_picture, op_pixels_func (*pix_op)[4],
- qpel_mc_func (*qpix_op)[16],
- int motion_x, int motion_y, int h)
- {
- uint8_t *ptr_y, *ptr_cb, *ptr_cr;
- int dxy, uvdxy, mx, my, src_x, src_y, uvsrc_x, uvsrc_y, v_edge_pos, linesize, uvlinesize;
- dxy = ((motion_y & 3) << 2) | (motion_x & 3);
- src_x = s->mb_x * 16 + (motion_x >> 2);
- src_y = s->mb_y * (16 >> field_based) + (motion_y >> 2);
- v_edge_pos = s->v_edge_pos >> field_based;
- linesize = s->linesize << field_based;
- uvlinesize = s->uvlinesize << field_based;
- if(field_based){
- mx= motion_x/2;
- my= motion_y>>1;
- }else if(s->workaround_bugs&FF_BUG_QPEL_CHROMA2){
- static const int rtab[8]= {0,0,1,1,0,0,0,1};
- mx= (motion_x>>1) + rtab[motion_x&7];
- my= (motion_y>>1) + rtab[motion_y&7];
- }else if(s->workaround_bugs&FF_BUG_QPEL_CHROMA){
- mx= (motion_x>>1)|(motion_x&1);
- my= (motion_y>>1)|(motion_y&1);
- }else{
- mx= motion_x/2;
- my= motion_y/2;
- }
- mx= (mx>>1)|(mx&1);
- my= (my>>1)|(my&1);
- uvdxy= (mx&1) | ((my&1)<<1);
- mx>>=1;
- my>>=1;
- uvsrc_x = s->mb_x * 8 + mx;
- uvsrc_y = s->mb_y * (8 >> field_based) + my;
- ptr_y = ref_picture[0] + src_y * linesize + src_x;
- ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
- ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
- if( src_x > s->h_edge_pos - (motion_x&3) - 16
- || src_y > v_edge_pos - (motion_y&3) - h ){
- ff_emulated_edge_mc(s->edge_emu_buffer, ptr_y, s->linesize,
- 17, 17+field_based, src_x, src_y<<field_based,
- s->h_edge_pos, s->v_edge_pos);
- ptr_y= s->edge_emu_buffer;
- if(!ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
- uint8_t *uvbuf= s->edge_emu_buffer + 18*s->linesize;
- ff_emulated_edge_mc(uvbuf, ptr_cb, s->uvlinesize,
- 9, 9 + field_based,
- uvsrc_x, uvsrc_y<<field_based,
- s->h_edge_pos>>1, s->v_edge_pos>>1);
- ff_emulated_edge_mc(uvbuf + 16, ptr_cr, s->uvlinesize,
- 9, 9 + field_based,
- uvsrc_x, uvsrc_y<<field_based,
- s->h_edge_pos>>1, s->v_edge_pos>>1);
- ptr_cb= uvbuf;
- ptr_cr= uvbuf + 16;
- }
- }
- if(!field_based)
- qpix_op[0][dxy](dest_y, ptr_y, linesize);
- else{
- if(bottom_field){
- dest_y += s->linesize;
- dest_cb+= s->uvlinesize;
- dest_cr+= s->uvlinesize;
- }
- if(field_select){
- ptr_y += s->linesize;
- ptr_cb += s->uvlinesize;
- ptr_cr += s->uvlinesize;
- }
- //damn interlaced mode
- //FIXME boundary mirroring is not exactly correct here
- qpix_op[1][dxy](dest_y , ptr_y , linesize);
- qpix_op[1][dxy](dest_y+8, ptr_y+8, linesize);
- }
- if(!ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
- pix_op[1][uvdxy](dest_cr, ptr_cr, uvlinesize, h >> 1);
- pix_op[1][uvdxy](dest_cb, ptr_cb, uvlinesize, h >> 1);
- }
- }
- /**
- * h263 chroma 4mv motion compensation.
- */
- static inline void chroma_4mv_motion(MpegEncContext *s,
- uint8_t *dest_cb, uint8_t *dest_cr,
- uint8_t **ref_picture,
- op_pixels_func *pix_op,
- int mx, int my){
- int dxy, emu=0, src_x, src_y, offset;
- uint8_t *ptr;
- /* In case of 8X8, we construct a single chroma motion vector
- with a special rounding */
- mx= ff_h263_round_chroma(mx);
- my= ff_h263_round_chroma(my);
- dxy = ((my & 1) << 1) | (mx & 1);
- mx >>= 1;
- my >>= 1;
- src_x = s->mb_x * 8 + mx;
- src_y = s->mb_y * 8 + my;
- src_x = av_clip(src_x, -8, s->width/2);
- if (src_x == s->width/2)
- dxy &= ~1;
- src_y = av_clip(src_y, -8, s->height/2);
- if (src_y == s->height/2)
- dxy &= ~2;
- offset = (src_y * (s->uvlinesize)) + src_x;
- ptr = ref_picture[1] + offset;
- if(s->flags&CODEC_FLAG_EMU_EDGE){
- if( src_x > (s->h_edge_pos>>1) - (dxy &1) - 8
- || src_y > (s->v_edge_pos>>1) - (dxy>>1) - 8){
- ff_emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize,
- 9, 9, src_x, src_y,
- s->h_edge_pos>>1, s->v_edge_pos>>1);
- ptr= s->edge_emu_buffer;
- emu=1;
- }
- }
- pix_op[dxy](dest_cb, ptr, s->uvlinesize, 8);
- ptr = ref_picture[2] + offset;
- if(emu){
- ff_emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize,
- 9, 9, src_x, src_y,
- s->h_edge_pos>>1, s->v_edge_pos>>1);
- ptr= s->edge_emu_buffer;
- }
- pix_op[dxy](dest_cr, ptr, s->uvlinesize, 8);
- }
- static inline void prefetch_motion(MpegEncContext *s, uint8_t **pix, int dir){
- /* fetch pixels for estimated mv 4 macroblocks ahead
- * optimized for 64byte cache lines */
- const int shift = s->quarter_sample ? 2 : 1;
- const int mx= (s->mv[dir][0][0]>>shift) + 16*s->mb_x + 8;
- const int my= (s->mv[dir][0][1]>>shift) + 16*s->mb_y;
- int off= mx + (my + (s->mb_x&3)*4)*s->linesize + 64;
- s->dsp.prefetch(pix[0]+off, s->linesize, 4);
- off= (mx>>1) + ((my>>1) + (s->mb_x&7))*s->uvlinesize + 64;
- s->dsp.prefetch(pix[1]+off, pix[2]-pix[1], 2);
- }
- /**
- * motion compensation of a single macroblock
- * @param s context
- * @param dest_y luma destination pointer
- * @param dest_cb chroma cb/u destination pointer
- * @param dest_cr chroma cr/v destination pointer
- * @param dir direction (0->forward, 1->backward)
- * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
- * @param pic_op halfpel motion compensation function (average or put normally)
- * @param pic_op qpel motion compensation function (average or put normally)
- * the motion vectors are taken from s->mv and the MV type from s->mv_type
- */
- static av_always_inline void MPV_motion_internal(MpegEncContext *s,
- uint8_t *dest_y, uint8_t *dest_cb,
- uint8_t *dest_cr, int dir,
- uint8_t **ref_picture,
- op_pixels_func (*pix_op)[4],
- qpel_mc_func (*qpix_op)[16], int is_mpeg12)
- {
- int dxy, mx, my, src_x, src_y, motion_x, motion_y;
- int mb_x, mb_y, i;
- uint8_t *ptr, *dest;
- mb_x = s->mb_x;
- mb_y = s->mb_y;
- prefetch_motion(s, ref_picture, dir);
- if(!is_mpeg12 && s->obmc && s->pict_type != FF_B_TYPE){
- int16_t mv_cache[4][4][2];
- const int xy= s->mb_x + s->mb_y*s->mb_stride;
- const int mot_stride= s->b8_stride;
- const int mot_xy= mb_x*2 + mb_y*2*mot_stride;
- assert(!s->mb_skipped);
- memcpy(mv_cache[1][1], s->current_picture.motion_val[0][mot_xy ], sizeof(int16_t)*4);
- memcpy(mv_cache[2][1], s->current_picture.motion_val[0][mot_xy+mot_stride], sizeof(int16_t)*4);
- memcpy(mv_cache[3][1], s->current_picture.motion_val[0][mot_xy+mot_stride], sizeof(int16_t)*4);
- if(mb_y==0 || IS_INTRA(s->current_picture.mb_type[xy-s->mb_stride])){
- memcpy(mv_cache[0][1], mv_cache[1][1], sizeof(int16_t)*4);
- }else{
- memcpy(mv_cache[0][1], s->current_picture.motion_val[0][mot_xy-mot_stride], sizeof(int16_t)*4);
- }
- if(mb_x==0 || IS_INTRA(s->current_picture.mb_type[xy-1])){
- *(int32_t*)mv_cache[1][0]= *(int32_t*)mv_cache[1][1];
- *(int32_t*)mv_cache[2][0]= *(int32_t*)mv_cache[2][1];
- }else{
- *(int32_t*)mv_cache[1][0]= *(int32_t*)s->current_picture.motion_val[0][mot_xy-1];
- *(int32_t*)mv_cache[2][0]= *(int32_t*)s->current_picture.motion_val[0][mot_xy-1+mot_stride];
- }
- if(mb_x+1>=s->mb_width || IS_INTRA(s->current_picture.mb_type[xy+1])){
- *(int32_t*)mv_cache[1][3]= *(int32_t*)mv_cache[1][2];
- *(int32_t*)mv_cache[2][3]= *(int32_t*)mv_cache[2][2];
- }else{
- *(int32_t*)mv_cache[1][3]= *(int32_t*)s->current_picture.motion_val[0][mot_xy+2];
- *(int32_t*)mv_cache[2][3]= *(int32_t*)s->current_picture.motion_val[0][mot_xy+2+mot_stride];
- }
- mx = 0;
- my = 0;
- for(i=0;i<4;i++) {
- const int x= (i&1)+1;
- const int y= (i>>1)+1;
- int16_t mv[5][2]= {
- {mv_cache[y][x ][0], mv_cache[y][x ][1]},
- {mv_cache[y-1][x][0], mv_cache[y-1][x][1]},
- {mv_cache[y][x-1][0], mv_cache[y][x-1][1]},
- {mv_cache[y][x+1][0], mv_cache[y][x+1][1]},
- {mv_cache[y+1][x][0], mv_cache[y+1][x][1]}};
- //FIXME cleanup
- obmc_motion(s, dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize,
- ref_picture[0],
- mb_x * 16 + (i & 1) * 8, mb_y * 16 + (i >>1) * 8,
- pix_op[1],
- mv);
- mx += mv[0][0];
- my += mv[0][1];
- }
- if(!ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY))
- chroma_4mv_motion(s, dest_cb, dest_cr, ref_picture, pix_op[1], mx, my);
- return;
- }
- switch(s->mv_type) {
- case MV_TYPE_16X16:
- if(s->mcsel){
- if(s->real_sprite_warping_points==1){
- gmc1_motion(s, dest_y, dest_cb, dest_cr,
- ref_picture);
- }else{
- gmc_motion(s, dest_y, dest_cb, dest_cr,
- ref_picture);
- }
- }else if(!is_mpeg12 && s->quarter_sample){
- qpel_motion(s, dest_y, dest_cb, dest_cr,
- 0, 0, 0,
- ref_picture, pix_op, qpix_op,
- s->mv[dir][0][0], s->mv[dir][0][1], 16);
- }
- /*else if(!is_mpeg12 && ENABLE_WMV2 && s->mspel)
- {
- ff_mspel_motion(s, dest_y, dest_cb, dest_cr,
- ref_picture, pix_op,
- s->mv[dir][0][0], s->mv[dir][0][1], 16);
- }*/
- else
- {
- mpeg_motion(s, dest_y, dest_cb, dest_cr,
- 0, 0, 0,
- ref_picture, pix_op,
- s->mv[dir][0][0], s->mv[dir][0][1], 16);
- }
- break;
- case MV_TYPE_8X8:
- if (!is_mpeg12) {
- mx = 0;
- my = 0;
- if(s->quarter_sample){
- for(i=0;i<4;i++) {
- motion_x = s->mv[dir][i][0];
- motion_y = s->mv[dir][i][1];
- dxy = ((motion_y & 3) << 2) | (motion_x & 3);
- src_x = mb_x * 16 + (motion_x >> 2) + (i & 1) * 8;
- src_y = mb_y * 16 + (motion_y >> 2) + (i >>1) * 8;
- /* WARNING: do no forget half pels */
- src_x = av_clip(src_x, -16, s->width);
- if (src_x == s->width)
- dxy &= ~3;
- src_y = av_clip(src_y, -16, s->height);
- if (src_y == s->height)
- dxy &= ~12;
- ptr = ref_picture[0] + (src_y * s->linesize) + (src_x);
- if(s->flags&CODEC_FLAG_EMU_EDGE){
- if( src_x > s->h_edge_pos - (motion_x&3) - 8
- || src_y > s->v_edge_pos - (motion_y&3) - 8 ){
- ff_emulated_edge_mc(s->edge_emu_buffer, ptr,
- s->linesize, 9, 9,
- src_x, src_y,
- s->h_edge_pos, s->v_edge_pos);
- ptr= s->edge_emu_buffer;
- }
- }
- dest = dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize;
- qpix_op[1][dxy](dest, ptr, s->linesize);
- mx += s->mv[dir][i][0]/2;
- my += s->mv[dir][i][1]/2;
- }
- }else{
- for(i=0;i<4;i++) {
- hpel_motion(s, dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize,
- ref_picture[0], 0, 0,
- mb_x * 16 + (i & 1) * 8, mb_y * 16 + (i >>1) * 8,
- s->width, s->height, s->linesize,
- s->h_edge_pos, s->v_edge_pos,
- 8, 8, pix_op[1],
- s->mv[dir][i][0], s->mv[dir][i][1]);
- mx += s->mv[dir][i][0];
- my += s->mv[dir][i][1];
- }
- }
- if(!ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY))
- chroma_4mv_motion(s, dest_cb, dest_cr, ref_picture, pix_op[1], mx, my);
- }
- break;
- case MV_TYPE_FIELD:
- if (s->picture_structure == PICT_FRAME) {
- if(!is_mpeg12 && s->quarter_sample){
- for(i=0; i<2; i++){
- qpel_motion(s, dest_y, dest_cb, dest_cr,
- 1, i, s->field_select[dir][i],
- ref_picture, pix_op, qpix_op,
- s->mv[dir][i][0], s->mv[dir][i][1], 8);
- }
- }else{
- /* top field */
- mpeg_motion(s, dest_y, dest_cb, dest_cr,
- 1, 0, s->field_select[dir][0],
- ref_picture, pix_op,
- s->mv[dir][0][0], s->mv[dir][0][1], 8);
- /* bottom field */
- mpeg_motion(s, dest_y, dest_cb, dest_cr,
- 1, 1, s->field_select[dir][1],
- ref_picture, pix_op,
- s->mv[dir][1][0], s->mv[dir][1][1], 8);
- }
- } else {
- if(s->picture_structure != s->field_select[dir][0] + 1 && s->pict_type != FF_B_TYPE && !s->first_field){
- ref_picture= s->current_picture_ptr->data;
- }
- mpeg_motion(s, dest_y, dest_cb, dest_cr,
- 0, 0, s->field_select[dir][0],
- ref_picture, pix_op,
- s->mv[dir][0][0], s->mv[dir][0][1], 16);
- }
- break;
- case MV_TYPE_16X8:
- for(i=0; i<2; i++){
- uint8_t ** ref2picture;
- if(s->picture_structure == s->field_select[dir][i] + 1
- || s->pict_type == FF_B_TYPE || s->first_field){
- ref2picture= ref_picture;
- }else{
- ref2picture= s->current_picture_ptr->data;
- }
- mpeg_motion(s, dest_y, dest_cb, dest_cr,
- 0, 0, s->field_select[dir][i],
- ref2picture, pix_op,
- s->mv[dir][i][0], s->mv[dir][i][1] + 16*i, 8);
- dest_y += 16*s->linesize;
- dest_cb+= (16>>s->chroma_y_shift)*s->uvlinesize;
- dest_cr+= (16>>s->chroma_y_shift)*s->uvlinesize;
- }
- break;
- case MV_TYPE_DMV:
- if(s->picture_structure == PICT_FRAME){
- for(i=0; i<2; i++){
- int j;
- for(j=0; j<2; j++){
- mpeg_motion(s, dest_y, dest_cb, dest_cr,
- 1, j, j^i,
- ref_picture, pix_op,
- s->mv[dir][2*i + j][0], s->mv[dir][2*i + j][1], 8);
- }
- pix_op = s->dsp.avg_pixels_tab;
- }
- }else{
- for(i=0; i<2; i++){
- mpeg_motion(s, dest_y, dest_cb, dest_cr,
- 0, 0, s->picture_structure != i+1,
- ref_picture, pix_op,
- s->mv[dir][2*i][0],s->mv[dir][2*i][1],16);
- // after put we make avg of the same block
- pix_op=s->dsp.avg_pixels_tab;
- //opposite parity is always in the same frame if this is second field
- if(!s->first_field){
- ref_picture = s->current_picture_ptr->data;
- }
- }
- }
- break;
- default: assert(0);
- }
- }
- static inline void MPV_motion(MpegEncContext *s,
- uint8_t *dest_y, uint8_t *dest_cb,
- uint8_t *dest_cr, int dir,
- uint8_t **ref_picture,
- op_pixels_func (*pix_op)[4],
- qpel_mc_func (*qpix_op)[16])
- {
- #ifndef CONFIG_SMALL
- if(s->out_format == FMT_MPEG1)
- MPV_motion_internal(s, dest_y, dest_cb, dest_cr, dir,
- ref_picture, pix_op, qpix_op, 1);
- else
- #endif
- MPV_motion_internal(s, dest_y, dest_cb, dest_cr, dir,
- ref_picture, pix_op, qpix_op, 0);
- }
- #endif /* AVCODEC_MPEGVIDEO_COMMON_H */