avcodec/mpegaudiodsp: Make ff_mpadsp_init() thread-safe

The only thing missing for this is to make ff_mpadsp_init_x86()
thread-safe; it currently isn't because a static table is initialized
every time ff_mpadsp_init() is called (when ARCH_X86 is true). Solve
this by initializing this table only once, namely together with the
ordinary not-arch specific tables. This also allows to reuse their AVOnce.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/libavcodec/mpegaudiodsp.h b/libavcodec/mpegaudiodsp.h
index 28dcec576c..4c9b05ebac 100644
--- a/libavcodec/mpegaudiodsp.h
+++ b/libavcodec/mpegaudiodsp.h
@@ -63,6 +63,7 @@ void ff_mpadsp_init_aarch64(MPADSPContext *s);
 void ff_mpadsp_init_arm(MPADSPContext *s);
 void ff_mpadsp_init_ppc(MPADSPContext *s);
 void ff_mpadsp_init_x86(MPADSPContext *s);
+void ff_mpadsp_init_x86_tabs(void);
 void ff_mpadsp_init_mipsfpu(MPADSPContext *s);
 void ff_mpadsp_init_mipsdsp(MPADSPContext *s);