From 9f73b88c624a0b70a3d1169b9f6fa49002dfb94a Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sat, 31 Jan 2015 04:57:50 +0100 Subject: [PATCH] avcodec/h261enc: fix dquant encoding Fixes Ticket4111 Signed-off-by: Michael Niedermayer --- libavcodec/h261enc.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/libavcodec/h261enc.c b/libavcodec/h261enc.c index 75211a0712..d7b56a8e43 100644 --- a/libavcodec/h261enc.c +++ b/libavcodec/h261enc.c @@ -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],