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Remove delayed_output_pic, I do not understand what this variable was good for.

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It is simpler and might be faster now.

Originally committed as revision 14289 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2008-07-19 02:53:57 +00:00
parent 1b547abaa3
commit df8a7dff29
2 changed files with 12 additions and 20 deletions
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30
libavcodec/h264.c
View File

@ -3269,15 +3269,11 @@ static inline int unreference_pic(H264Context *h, Picture *pic, int refmask){
if (pic->reference &= refmask) {
return 0;
} else {
if(pic == h->delayed_output_pic)
pic->reference=DELAYED_PIC_REF;
else{
for(i = 0; h->delayed_pic[i]; i++)
if(pic == h->delayed_pic[i]){
pic->reference=DELAYED_PIC_REF;
break;
}
}
return 1;
}
}
@ -3312,9 +3308,7 @@ static void flush_dpb(AVCodecContext *avctx){
h->delayed_pic[i]->reference= 0;
h->delayed_pic[i]= NULL;
}
if(h->delayed_output_pic)
h->delayed_output_pic->reference= 0;
h->delayed_output_pic= NULL;
h->outputed_poc= INT_MIN;
idr(h);
if(h->s.current_picture_ptr)
h->s.current_picture_ptr->reference= 0;
@ -7783,7 +7777,6 @@ 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;
Picture *prev = h->delayed_output_pic;
int i, pics, cross_idr, out_of_order, out_idx;
s->mb_y= 0;
@ -7860,21 +7853,21 @@ static int decode_frame(AVCodecContext *avctx,
out_idx = i;
}
out_of_order = !cross_idr && prev && out->poc < prev->poc;
out_of_order = !cross_idr && out->poc < h->outputed_poc;
if(prev && pics <= s->avctx->has_b_frames || out_of_order)
out = prev;
if(pics <= s->avctx->has_b_frames || out_of_order)
out = NULL;
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 && pics < 15)
|| (s->low_delay &&
((!cross_idr && prev && out->poc > prev->poc + 2)
((!cross_idr && out && out->poc > h->outputed_poc + 2)
|| cur->pict_type == FF_B_TYPE)))
{
s->low_delay = 0;
s->avctx->has_b_frames++;
out = prev;
out= NULL;
}
if(out_of_order || pics > s->avctx->has_b_frames){
@ -7882,13 +7875,12 @@ static int decode_frame(AVCodecContext *avctx,
h->delayed_pic[i] = h->delayed_pic[i+1];
}
if(prev == out)
*data_size = 0;
else
if(out){
*data_size = sizeof(AVFrame);
if(prev && prev != out && prev->reference == DELAYED_PIC_REF)
prev->reference = 0;
h->delayed_output_pic = out;
out->reference &= ~DELAYED_PIC_REF;
h->outputed_poc = out->poc;
}
#endif
if(out)

2
libavcodec/h264.h
View File

@ -337,7 +337,7 @@ typedef struct H264Context{
Reordered version of default_ref_list
according to picture reordering in slice header */
Picture *delayed_pic[MAX_DELAYED_PIC_COUNT+2]; //FIXME size?
Picture *delayed_output_pic;
int outputed_poc;
/**
* memory management control operations buffer.