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authorMuhammad Faiz <mfcc64@gmail.com>2017-03-07 15:53:27 +0700
committerMuhammad Faiz <mfcc64@gmail.com>2017-03-07 20:34:44 +0700
commit49635f0a46365f361ce665356bb41e199176021b (patch)
tree8fd886082e4ba910bd5e482e8b4a34ab0e2d48b1 /libavformat
parente85e8408802dc3a474e6a610867df8e57c768339 (diff)
avfilter/allformats: make av_register_all thread safe
use ff_thread_once Suggested-by: wm4 <nfxjfg@googlemail.com> Signed-off-by: Muhammad Faiz <mfcc64@gmail.com>
Diffstat (limited to 'libavformat')
-rw-r--r--libavformat/allformats.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/libavformat/allformats.c b/libavformat/allformats.c
index 35869e3cf0..132e58b8b9 100644
--- a/libavformat/allformats.c
+++ b/libavformat/allformats.c
@@ -19,6 +19,7 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include "libavutil/thread.h"
#include "avformat.h"
#include "rtp.h"
#include "rdt.h"
@@ -41,13 +42,8 @@
#define REGISTER_MUXDEMUX(X, x) REGISTER_MUXER(X, x); REGISTER_DEMUXER(X, x)
-void av_register_all(void)
+static void register_all(void)
{
- static int initialized;
-
- if (initialized)
- return;
-
avcodec_register_all();
/* (de)muxers */
@@ -383,6 +379,11 @@ void av_register_all(void)
REGISTER_DEMUXER (LIBMODPLUG, libmodplug);
REGISTER_MUXDEMUX(LIBNUT, libnut);
REGISTER_DEMUXER (LIBOPENMPT, libopenmpt);
+}
+
+void av_register_all(void)
+{
+ AVOnce control = AV_ONCE_INIT;
- initialized = 1;
+ ff_thread_once(&control, register_all);
}