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| author | Dale Curtis <dalecurtis@chromium.org> | 2017-11-17 14:51:09 -0800 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-12-02 00:28:59 +0100 |
| commit | 712814fb17b62557d17d0bcff5b57e2a9d8e613c (patch) | |
| tree | 620ebd67049901f202a91e671854cd2fc823330d /libavcodec | |
| parent | 20e78d53394fa56eb4bcb3be06ff70375a86dd94 (diff) | |
| download | ffmpeg-712814fb17b62557d17d0bcff5b57e2a9d8e613c.tar.gz | |
Use ff_thread_once for fixed, float table init.
These tables are static so they should only be initialized once
instead of on every call to ff_mpadsp_init().
Signed-off-by: Dale Curtis <dalecurtis@chromium.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 5eaaffaf64d1854493f0fe9ec822eed1b3cd9fe1)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/mpegaudiodsp.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/libavcodec/mpegaudiodsp.c b/libavcodec/mpegaudiodsp.c index a5d20df629..3cafca27bf 100644 --- a/libavcodec/mpegaudiodsp.c +++ b/libavcodec/mpegaudiodsp.c @@ -20,17 +20,21 @@ #include "config.h" #include "libavutil/attributes.h" +#include "libavutil/thread.h" #include "mpegaudiodsp.h" #include "dct.h" #include "dct32.h" +static AVOnce mpadsp_float_table_init = AV_ONCE_INIT; +static AVOnce mpadsp_fixed_table_init = AV_ONCE_INIT; + av_cold void ff_mpadsp_init(MPADSPContext *s) { DCTContext dct; ff_dct_init(&dct, 5, DCT_II); - ff_init_mpadsp_tabs_float(); - ff_init_mpadsp_tabs_fixed(); + ff_thread_once(&mpadsp_float_table_init, &ff_init_mpadsp_tabs_float); + ff_thread_once(&mpadsp_fixed_table_init, &ff_init_mpadsp_tabs_fixed); s->apply_window_float = ff_mpadsp_apply_window_float; s->apply_window_fixed = ff_mpadsp_apply_window_fixed; |