From 4f5bd6177da43263a47239d96ec1776ccf46368e Mon Sep 17 00:00:00 2001 From: Andreas Rheinhardt Date: Mon, 23 Nov 2020 04:20:07 +0100 Subject: avcodec/dsd: Make initializing DSD tables thread-safe This automatically makes the DSD formats as well as DST and WavPack init-threadsafe. Signed-off-by: Andreas Rheinhardt --- libavcodec/dsd.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) (limited to 'libavcodec/dsd.c') diff --git a/libavcodec/dsd.c b/libavcodec/dsd.c index d48f87fa0f..95aab61ea4 100644 --- a/libavcodec/dsd.c +++ b/libavcodec/dsd.c @@ -21,6 +21,7 @@ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ +#include "libavutil/thread.h" #include "libavcodec/internal.h" #include "libavcodec/mathops.h" #include "avcodec.h" @@ -45,11 +46,8 @@ static av_cold void dsd_ctables_tableinit(void) av_cold void ff_init_dsd_data(void) { - static int done = 0; - if (done) - return; - dsd_ctables_tableinit(); - done = 1; + static AVOnce init_static_once = AV_ONCE_INIT; + ff_thread_once(&init_static_once, dsd_ctables_tableinit); } void ff_dsd2pcm_translate(DSDContext* s, size_t samples, int lsbf, -- cgit v1.2.3