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Code Issues Releases Activity

avcodec/h261enc: fix dquant encoding

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Fixes Ticket4111

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-01-31 04:57:50 +01:00
parent f5722ba276
commit 9f73b88c62
1 changed files with 6 additions and 3 deletions
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9
libavcodec/h261enc.c
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@ -250,12 +250,13 @@ void ff_h261_encode_mb(MpegEncContext *s, int16_t block[6][64],
/* mvd indicates if this block is motion compensated */
mvd = motion_x | motion_y;
if ((cbp | mvd | s->dquant) == 0) {
if ((cbp | mvd) == 0) {
/* skip macroblock */
s->skip_count++;
s->mb_skip_run++;
s->last_mv[0][0][0] = 0;
s->last_mv[0][0][1] = 0;
s->qscale -= s->dquant;
return;
}
}
@ -274,13 +275,15 @@ void ff_h261_encode_mb(MpegEncContext *s, int16_t block[6][64],
h->mtype += 3;
if (s->loop_filter)
h->mtype += 3;
if (cbp || s->dquant)
if (cbp)
h->mtype++;
av_assert1(h->mtype > 1);
}
if (s->dquant)
if (s->dquant && cbp) {
h->mtype++;
} else
s->qscale -= s->dquant;
put_bits(&s->pb,
ff_h261_mtype_bits[h->mtype],