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ac prediction with rate distorted qp fix

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Originally committed as revision 2510 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2003-11-12 13:03:51 +00:00
parent 1f26c6f338
commit 30758048ef
1 changed files with 12 additions and 5 deletions
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17
libavcodec/mpegvideo.c
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@ -3834,6 +3834,7 @@ static void encode_picture(MpegEncContext *s, int picture_number)
if(best_s.mv_type==MV_TYPE_16X16 && !(best_s.mv_dir&MV_DIRECT)){
const int last_qp= backup_s.qscale;
int dquant, dir, qp, dc[6];
DCTELEM ac[6][16];
assert(backup_s.dquant == 0);
@ -3853,15 +3854,21 @@ static void encode_picture(MpegEncContext *s, int picture_number)
if(qp < s->avctx->qmin || qp > s->avctx->qmax)
break;
backup_s.dquant= dquant;
for(i=0; i<6; i++){
dc[i]= s->dc_val[0][ s->block_index[i] ]; //FIXME AC
if(s->mb_intra){
for(i=0; i<6; i++){
dc[i]= s->dc_val[0][ s->block_index[i] ];
memcpy(ac[i], s->ac_val[0][s->block_index[i]], sizeof(DCTELEM)*16);
}
}
//printf("%d %d\n", backup_s.dquant, backup_s.qscale);
encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
&dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
if(best_s.qscale != qp){
for(i=0; i<6; i++){
s->dc_val[0][ s->block_index[i] ]= dc[i];
if(s->mb_intra){
for(i=0; i<6; i++){
s->dc_val[0][ s->block_index[i] ]= dc[i];
memcpy(s->ac_val[0][s->block_index[i]], ac[i], sizeof(DCTELEM)*16);
}
}
if(dir > 0 && dquant==dir){
dquant= 0;