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Reorganize long reference management to minimize code duplication in upcoming PAFF implementation. 

patch by Jeff Downs, heydowns a borg d com
original thread:
Subject: [FFmpeg-devel] [PATCH] Implement PAFF in H.264
Date: 18/09/07 20:30

Originally committed as revision 10665 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Jeff Downs 2007-10-04 06:53:12 +00:00 committed by Andreas Öman
parent 3a22d7fa1f
commit 24231e4cf6
1 changed files with 13 additions and 2 deletions
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15
libavcodec/h264.c
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@ -3223,6 +3223,17 @@ static Picture * remove_short(H264Context *h, int frame_num){
return pic;
}
/**
* Remove a picture from the long term reference list by its index in
* that list. This does no checking on the provided index; it is assumed
* to be valid. The removed entry is set to NULL. Other entries are unaffected.
* @param i index into h->long_ref of picture to remove.
*/
static void remove_long_at_index(H264Context *h, int i){
h->long_ref[i]= NULL;
h->long_ref_count--;
}
/**
*
* @return the removed picture or NULL if an error occurs
@ -3231,8 +3242,8 @@ static Picture * remove_long(H264Context *h, int i){
Picture *pic;
pic= h->long_ref[i];
h->long_ref[i]= NULL;
if(pic) h->long_ref_count--;
if (pic)
remove_long_at_index(h, i);
return pic;
}