diff options
Diffstat (limited to 'libavcodec/h264.c')
| -rw-r--r-- | libavcodec/h264.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/libavcodec/h264.c b/libavcodec/h264.c index 2cb56028de..66174778df 100644 --- a/libavcodec/h264.c +++ b/libavcodec/h264.c @@ -3034,7 +3034,8 @@ static int decode_slice_header(H264Context *h, H264Context *h0){ h->ref_count[1]= h->pps.ref_count[1]; if(h->slice_type_nos != AV_PICTURE_TYPE_I){ - unsigned max= (16<<(s->picture_structure != PICT_FRAME))-1; + unsigned max= s->picture_structure == PICT_FRAME ? 15 : 31; + if(h->slice_type_nos == AV_PICTURE_TYPE_B){ h->direct_spatial_mv_pred= get_bits1(&s->gb); } @@ -3044,13 +3045,14 @@ static int decode_slice_header(H264Context *h, H264Context *h0){ h->ref_count[0]= get_ue_golomb(&s->gb) + 1; if(h->slice_type_nos==AV_PICTURE_TYPE_B) h->ref_count[1]= get_ue_golomb(&s->gb) + 1; - } - if(h->ref_count[0]-1 > max || h->ref_count[1]-1 > max){ + + if (h->ref_count[0]-1 > max || h->ref_count[1]-1 > max){ av_log(h->s.avctx, AV_LOG_ERROR, "reference overflow\n"); - h->ref_count[0]= h->ref_count[1]= 1; - return -1; + h->ref_count[0] = h->ref_count[1] = 1; + return AVERROR_INVALIDDATA; } + if(h->slice_type_nos == AV_PICTURE_TYPE_B) h->list_count= 2; else |