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1000l to myself - get correct quantization for blocks 1 and 2

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P.S.  This condition could be also written as if(n==3 || n==(2-dc_pred_dir))

Originally committed as revision 8508 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Kostya Shishkov 2007-03-25 06:00:06 +00:00
parent 8509fc7b13
commit b666151045
1 changed files with 6 additions and 2 deletions
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8
libavcodec/vc1.c
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@ -2954,7 +2954,9 @@ static int vc1_decode_i_block_adv(VC1Context *v, DCTELEM block[64], int n, int c
q1 = s->current_picture.qscale_table[mb_pos];
if(dc_pred_dir && c_avail && mb_pos) q2 = s->current_picture.qscale_table[mb_pos - 1];
if(!dc_pred_dir && a_avail && mb_pos >= s->mb_stride) q2 = s->current_picture.qscale_table[mb_pos - s->mb_stride];
if(n && n<4) q2 = q1;
if(dc_pred_dir && n==1) q2 = q1;
if(!dc_pred_dir && n==2) q2 = q1;
if(n==3) q2 = q1;
if(coded) {
int last = 0, skip, value;
@ -3159,7 +3161,9 @@ static int vc1_decode_intra_block(VC1Context *v, DCTELEM block[64], int n, int c
q1 = s->current_picture.qscale_table[mb_pos];
if(dc_pred_dir && c_avail && mb_pos) q2 = s->current_picture.qscale_table[mb_pos - 1];
if(!dc_pred_dir && a_avail && mb_pos >= s->mb_stride) q2 = s->current_picture.qscale_table[mb_pos - s->mb_stride];
if(n && n<4) q2 = q1;
if(dc_pred_dir && n==1) q2 = q1;
if(!dc_pred_dir && n==2) q2 = q1;
if(n==3) q2 = q1;
if(coded) {
int last = 0, skip, value;