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Try to fix has_b_frame calculation for open gop files.

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Fixes issue1523

Originally committed as revision 20504 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2009-11-10 20:24:41 +00:00
parent 51ae2142d5
commit 44be1d6478
1 changed files with 8 additions and 5 deletions
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13
libavcodec/h264.c
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@ -7795,7 +7795,7 @@ static int decode_frame(AVCodecContext *avctx,
if(!(s->flags2 & CODEC_FLAG2_CHUNKS) || (s->mb_y >= s->mb_height && s->mb_height)){
Picture *out = s->current_picture_ptr;
Picture *cur = s->current_picture_ptr;
int i, pics, cross_idr, out_of_order, out_idx;
int i, pics, out_of_order, out_idx;
field_end(h);
@ -7899,15 +7899,15 @@ static int decode_frame(AVCodecContext *avctx,
out = h->delayed_pic[i];
out_idx = i;
}
cross_idr = !!h->delayed_pic[i] || h->delayed_pic[0]->key_frame || h->delayed_pic[0]->mmco_reset;
out_of_order = !cross_idr && out->poc < h->outputed_poc;
if(s->avctx->has_b_frames == 0 && (h->delayed_pic[0]->key_frame || h->delayed_pic[0]->mmco_reset))
h->outputed_poc= INT_MIN;
out_of_order = out->poc < h->outputed_poc;
if(h->sps.bitstream_restriction_flag && s->avctx->has_b_frames >= h->sps.num_reorder_frames)
{ }
else if((out_of_order && pics-1 == s->avctx->has_b_frames && s->avctx->has_b_frames < MAX_DELAYED_PIC_COUNT)
|| (s->low_delay &&
((!cross_idr && out->poc > h->outputed_poc + 2)
((h->outputed_poc != INT_MIN && out->poc > h->outputed_poc + 2)
|| cur->pict_type == FF_B_TYPE)))
{
s->low_delay = 0;
@ -7922,6 +7922,9 @@ static int decode_frame(AVCodecContext *avctx,
if(!out_of_order && pics > s->avctx->has_b_frames){
*data_size = sizeof(AVFrame);
if(out_idx==0 && h->delayed_pic[0] && (h->delayed_pic[0]->key_frame || h->delayed_pic[0]->mmco_reset)) {
h->outputed_poc = INT_MIN;
} else
h->outputed_poc = out->poc;
*pict= *(AVFrame*)out;
}else{