[FFmpeg-devel] [PATCH 5/7] avfilter/avfilter: convert to stdatomic

James Almer jamrial at gmail.com
Thu Mar 23 01:34:10 EET 2017


Signed-off-by: James Almer <jamrial at gmail.com>
---
 libavfilter/avfilter.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/libavfilter/avfilter.c b/libavfilter/avfilter.c
index b431990edc..049c5ff47c 100644
--- a/libavfilter/avfilter.c
+++ b/libavfilter/avfilter.c
@@ -19,7 +19,8 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#include "libavutil/atomic.h"
+#include <stdatomic.h>
+
 #include "libavutil/avassert.h"
 #include "libavutil/avstring.h"
 #include "libavutil/buffer.h"
@@ -580,13 +581,14 @@ AVFilter *avfilter_get_by_name(const char *name)
 int avfilter_register(AVFilter *filter)
 {
     AVFilter **f = last_filter;
+    const AVFilter *cmp = NULL;
 
     /* the filter must select generic or internal exclusively */
     av_assert0((filter->flags & AVFILTER_FLAG_SUPPORT_TIMELINE) != AVFILTER_FLAG_SUPPORT_TIMELINE);
 
     filter->next = NULL;
 
-    while(*f || avpriv_atomic_ptr_cas((void * volatile *)f, NULL, filter))
+    while(*f || !atomic_compare_exchange_strong(f, &cmp, filter))
         f = &(*f)->next;
     last_filter = &filter->next;
 
-- 
2.12.0



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