Signed-off-by: Muhammad Faiz <mfc...@gmail.com>
---
libavcodec/allcodecs.c | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
index eee322b..1d05fc1 100644
--- a/libavcodec/allcodecs.c
+++ b/libavcodec/allcodecs.c
@@ -24,6 +24,8 @@
* Provide registration of all codecs, parsers and bitstream filters for
libavcodec.
*/
+#include <stdatomic.h>
+
#include "config.h"
#include "avcodec.h"
#include "version.h"
@@ -60,11 +62,14 @@
void avcodec_register_all(void)
{
- static int initialized;
+ static atomic_int initialized;
+ static atomic_int ready;
- if (initialized)
+ if (atomic_exchange_explicit(&initialized, 1, memory_order_relaxed)) {
+ while (!atomic_load_explicit(&ready, memory_order_relaxed))
+ ;
return;
- initialized = 1;
+ }
/* hardware accelerators */
REGISTER_HWACCEL(H263_VAAPI, h263_vaapi);
@@ -716,4 +721,6 @@ void avcodec_register_all(void)
REGISTER_PARSER(VP8, vp8);
REGISTER_PARSER(VP9, vp9);
REGISTER_PARSER(XMA, xma);
+
+ atomic_store_explicit(&ready, 1, memory_order_relaxed);
}
--
2.9.3
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