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| author | Michael Niedermayer <michaelni@gmx.at> | 2004-08-26 20:04:54 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2004-08-26 20:04:54 +0000 |
| commit | 155ec6edf82692bcf3a5f87d2bc697404f4e5aaf (patch) | |
| tree | cbd180563f98372c770bed15c39b3a5054f115f5 /libavcodec/motion_est.c | |
| parent | 714872547db409728e914916f5e070b2f18e5f8c (diff) | |
| download | ffmpeg-155ec6edf82692bcf3a5f87d2bc697404f4e5aaf.tar.gz | |
quad tree based motion compensation (currently only 16x16 & 8x8 OBMC blocks, but can be extended to other block sizes easily)
different intra block coding (previous was just an ugly hack)
1.8% bitrate reduction -0.01PSNR (foreman@352x288 qscale=8)
1.5% bitrate reduction +0.05PSNR (foreman@352x288 qscale=1)
Originally committed as revision 3416 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/motion_est.c')
| -rw-r--r-- | libavcodec/motion_est.c | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/libavcodec/motion_est.c b/libavcodec/motion_est.c index 9239503373..a43cd13619 100644 --- a/libavcodec/motion_est.c +++ b/libavcodec/motion_est.c @@ -268,14 +268,16 @@ void ff_init_me(MpegEncContext *s){ } // 8x8 fullpel search would need a 4x4 chroma compare, which we dont have yet, and even if we had the motion estimation code doesnt expect it - if((c->avctx->me_cmp&FF_CMP_CHROMA) && !s->dsp.me_cmp[2]){ - s->dsp.me_cmp[2]= zero_cmp; - } - if((c->avctx->me_sub_cmp&FF_CMP_CHROMA) && !s->dsp.me_sub_cmp[2]){ - s->dsp.me_sub_cmp[2]= zero_cmp; + if(s->codec_id != CODEC_ID_SNOW){ + if((c->avctx->me_cmp&FF_CMP_CHROMA) && !s->dsp.me_cmp[2]){ + s->dsp.me_cmp[2]= zero_cmp; + } + if((c->avctx->me_sub_cmp&FF_CMP_CHROMA) && !s->dsp.me_sub_cmp[2]){ + s->dsp.me_sub_cmp[2]= zero_cmp; + } + c->hpel_put[2][0]= c->hpel_put[2][1]= + c->hpel_put[2][2]= c->hpel_put[2][3]= zero_hpel; } - c->hpel_put[2][0]= c->hpel_put[2][1]= - c->hpel_put[2][2]= c->hpel_put[2][3]= zero_hpel; c->temp= c->scratchpad; } @@ -1313,7 +1315,7 @@ void ff_estimate_p_frame_motion(MpegEncContext * s, dmin= c->sub_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16); if(c->avctx->me_sub_cmp != c->avctx->mb_cmp && !c->skip) - dmin= get_mb_score(s, mx, my, 0, 0); + dmin= ff_get_mb_score(s, mx, my, 0, 0, 0, 16, 1); if((s->flags&CODEC_FLAG_4MV) && !c->skip && varc>50 && vard>10){ @@ -1529,7 +1531,7 @@ static int ff_estimate_motion_b(MpegEncContext * s, dmin= c->sub_motion_search(s, &mx, &my, dmin, 0, ref_index, 0, 16); if(c->avctx->me_sub_cmp != c->avctx->mb_cmp && !c->skip) - dmin= get_mb_score(s, mx, my, 0, ref_index); + dmin= ff_get_mb_score(s, mx, my, 0, ref_index, 0, 16, 1); //printf("%d %d %d %d//", s->mb_x, s->mb_y, mx, my); // s->mb_type[mb_y*s->mb_width + mb_x]= mb_type; @@ -1719,7 +1721,7 @@ static inline int direct_search(MpegEncContext * s, int mb_x, int mb_y) dmin = hpel_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16); if(c->avctx->me_sub_cmp != c->avctx->mb_cmp && !c->skip) - dmin= get_mb_score(s, mx, my, 0, 0); + dmin= ff_get_mb_score(s, mx, my, 0, 0, 0, 16, 1); get_limits(s, 16*mb_x, 16*mb_y); //restore c->?min/max, maybe not needed |