diff options
Diffstat (limited to 'libavcodec/bitstream_filter.c')
| -rw-r--r-- | libavcodec/bitstream_filter.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/libavcodec/bitstream_filter.c b/libavcodec/bitstream_filter.c index 328a9f6a34..dd105316ee 100644 --- a/libavcodec/bitstream_filter.c +++ b/libavcodec/bitstream_filter.c @@ -21,6 +21,7 @@ #include <string.h> #include "avcodec.h" +#include "libavutil/atomic.h" #include "libavutil/mem.h" static AVBitStreamFilter *first_bitstream_filter= NULL; @@ -31,8 +32,9 @@ AVBitStreamFilter *av_bitstream_filter_next(AVBitStreamFilter *f){ } void av_register_bitstream_filter(AVBitStreamFilter *bsf){ - bsf->next = first_bitstream_filter; - first_bitstream_filter= bsf; + do { + bsf->next = first_bitstream_filter; + } while(bsf->next != avpriv_atomic_ptr_cas((void * volatile *)&first_bitstream_filter, bsf->next, bsf)); } AVBitStreamFilterContext *av_bitstream_filter_init(const char *name){ |