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Code Issues Releases Activity

hmm did i mess the scaling of these up at some point?

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anyway, this change decreases bitrate and increase PSNR by ~1.00 on my test file, other files also benefit significantly

Originally committed as revision 4771 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2005-12-24 23:47:29 +00:00
parent b7c51ebc89
commit aacb6acc8a
1 changed files with 5 additions and 5 deletions
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10
libavcodec/motion_est.c
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@ -1177,7 +1177,7 @@ void ff_estimate_p_frame_motion(MpegEncContext * s,
pic->mc_mb_var[s->mb_stride * mb_y + mb_x] = vard;
c->mc_mb_var_sum_temp += vard;
if (vard <= 64 || vard < varc) { //FIXME
c->scene_change_score+= ff_sqrt(vard) - ff_sqrt(varc);
c->scene_change_score+= ff_sqrt(vard<<8) - ff_sqrt(varc<<8);
}else{
c->scene_change_score+= s->qscale;
}
@ -1268,7 +1268,7 @@ void ff_estimate_p_frame_motion(MpegEncContext * s,
#endif
if(mb_type){
if (vard <= 64 || vard < varc)
c->scene_change_score+= ff_sqrt(vard) - ff_sqrt(varc);
c->scene_change_score+= ff_sqrt(vard<<8) - ff_sqrt(varc<<8);
else
c->scene_change_score+= s->qscale;
@ -1289,7 +1289,7 @@ void ff_estimate_p_frame_motion(MpegEncContext * s,
}
}else if(c->avctx->mb_decision > FF_MB_DECISION_SIMPLE){
if (vard <= 64 || vard < varc)
c->scene_change_score+= ff_sqrt(vard) - ff_sqrt(varc);
c->scene_change_score+= ff_sqrt(vard<<8) - ff_sqrt(varc<<8);
else
c->scene_change_score+= s->qscale;
@ -1395,7 +1395,7 @@ void ff_estimate_p_frame_motion(MpegEncContext * s,
s->current_picture.mb_type[mb_y*s->mb_stride + mb_x]= 0;
if (vard <= 64 || vard < varc) { //FIXME
c->scene_change_score+= ff_sqrt(vard) - ff_sqrt(varc);
c->scene_change_score+= ff_sqrt(vard<<8) - ff_sqrt(varc<<8);
}else{
c->scene_change_score+= s->qscale;
}
@ -1828,7 +1828,7 @@ void ff_estimate_b_frame_motion(MpegEncContext * s,
c->mb_var_sum_temp += varc;*/
c->mc_mb_var_sum_temp += vard;
/* if (vard <= 64 || vard < varc) {
c->scene_change_score+= ff_sqrt(vard) - ff_sqrt(varc);
c->scene_change_score+= ff_sqrt(vard<<8) - ff_sqrt(varc<<8);
}else{
c->scene_change_score+= s->qscale;
}*/