generic-library/ffmpeg
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

avcodec/bitstream_filter: make av_register_bitstream_filter() thread safe

Browse Source 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-06-29 03:39:03 +02:00
parent 08f6fdc3e4
commit b36b5edb8f
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
libavcodec/bitstream_filter.c
View File

@ -21,6 +21,7 @@
#include <string.h> #include <string.h>
#include "avcodec.h" #include "avcodec.h"
#include "libavutil/atomic.h"
#include "libavutil/mem.h" #include "libavutil/mem.h"
static AVBitStreamFilter *first_bitstream_filter= NULL; static AVBitStreamFilter *first_bitstream_filter= NULL;
@ -31,8 +32,9 @@ AVBitStreamFilter *av_bitstream_filter_next(AVBitStreamFilter *f){
} }
void av_register_bitstream_filter(AVBitStreamFilter *bsf){ void av_register_bitstream_filter(AVBitStreamFilter *bsf){
do {
bsf->next = first_bitstream_filter; bsf->next = first_bitstream_filter;
first_bitstream_filter= bsf; } while(bsf->next != avpriv_atomic_ptr_cas((void * volatile *)&first_bitstream_filter, bsf->next, bsf));
} }
AVBitStreamFilterContext *av_bitstream_filter_init(const char *name){ AVBitStreamFilterContext *av_bitstream_filter_init(const char *name){