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Set field_poc (it was half uninitialized before) and use it

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instead of the fragile first_field check to determine if we have
2 fields at the end.

Originally committed as revision 14380 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2008-07-24 23:43:44 +00:00
parent b78a6baaf1
commit 357282c6f3
1 changed files with 9 additions and 11 deletions
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20
libavcodec/h264.c
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@ -2264,6 +2264,10 @@ static int frame_start(H264Context *h){
// mark frames as reference later "naturally".
if(s->codec_id != CODEC_ID_SVQ3)
s->current_picture_ptr->reference= 0;
s->current_picture_ptr->field_poc[0]=
s->current_picture_ptr->field_poc[1]= INT_MAX;
return 0;
}
@ -3698,6 +3702,7 @@ static int init_poc(H264Context *h){
MpegEncContext * const s = &h->s;
const int max_frame_num= 1<<h->sps.log2_max_frame_num;
int field_poc[2];
Picture *cur = s->current_picture_ptr;
h->frame_num_offset= h->prev_frame_num_offset;
if(h->frame_num < h->prev_frame_num)
@ -3761,18 +3766,11 @@ static int init_poc(H264Context *h){
field_poc[1]= poc;
}
if(s->picture_structure != PICT_BOTTOM_FIELD) {
if(s->picture_structure != PICT_BOTTOM_FIELD)
s->current_picture_ptr->field_poc[0]= field_poc[0];
s->current_picture_ptr->poc = field_poc[0];
}
if(s->picture_structure != PICT_TOP_FIELD) {
if(s->picture_structure != PICT_TOP_FIELD)
s->current_picture_ptr->field_poc[1]= field_poc[1];
s->current_picture_ptr->poc = field_poc[1];
}
if(!FIELD_PICTURE || !s->first_field) {
Picture *cur = s->current_picture_ptr;
cur->poc= FFMIN(cur->field_poc[0], cur->field_poc[1]);
}
cur->poc= FFMIN(cur->field_poc[0], cur->field_poc[1]);
return 0;
}
@ -7877,7 +7875,7 @@ static int decode_frame(AVCodecContext *avctx,
MPV_frame_end(s);
if (s->first_field) {
if (cur->field_poc[0]==INT_MAX || cur->field_poc[1]==INT_MAX) {
/* Wait for second field. */
*data_size = 0;