diff options
| -rw-r--r-- | libavcodec/ituh263dec.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/libavcodec/ituh263dec.c b/libavcodec/ituh263dec.c index f52ac7abfc..73e8bf56ef 100644 --- a/libavcodec/ituh263dec.c +++ b/libavcodec/ituh263dec.c @@ -1083,6 +1083,22 @@ int ff_h263_decode_picture_header(MpegEncContext *s) skip_bits(&s->gb, 2); /* Quantization information for B-pictures */ } + if (s->pict_type!=AV_PICTURE_TYPE_B) { + s->time = s->picture_number; + s->pp_time = s->time - s->last_non_b_time; + s->last_non_b_time = s->time; + }else{ + s->time = s->picture_number; + s->pb_time = s->pp_time - (s->last_non_b_time - s->time); + if (s->pp_time <=s->pb_time || + s->pp_time <= s->pp_time - s->pb_time || + s->pp_time <= 0){ + s->pp_time = 2; + s->pb_time = 1; + } + ff_mpeg4_init_direct_mv(s); + } + /* PEI */ while (get_bits1(&s->gb) != 0) { skip_bits(&s->gb, 8); |