diff options
Diffstat (limited to 'libavcodec/mpegaudiodsp_template.c')
| -rw-r--r-- | libavcodec/mpegaudiodsp_template.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/libavcodec/mpegaudiodsp_template.c b/libavcodec/mpegaudiodsp_template.c index f8d0870df6..c67c456e8a 100644 --- a/libavcodec/mpegaudiodsp_template.c +++ b/libavcodec/mpegaudiodsp_template.c @@ -22,6 +22,7 @@ #include "libavutil/attributes.h" #include "libavutil/mem.h" +#include "libavutil/thread.h" #include "dct32.h" #include "mathops.h" #include "mpegaudiodsp.h" @@ -192,7 +193,7 @@ void RENAME(ff_mpa_synth_filter)(MPADSPContext *s, MPA_INT *synth_buf_ptr, *synth_buf_offset = offset; } -av_cold void RENAME(ff_mpa_synth_init)(MPA_INT *window) +static av_cold void mpa_synth_init(MPA_INT *window) { int i, j; @@ -221,6 +222,17 @@ av_cold void RENAME(ff_mpa_synth_init)(MPA_INT *window) window[512+128+16*i+j] = window[64*i+48-j]; } +static av_cold void mpa_synth_window_init(void) +{ + mpa_synth_init(RENAME(ff_mpa_synth_window)); +} + +av_cold void RENAME(ff_mpa_synth_init)(void) +{ + static AVOnce init_static_once = AV_ONCE_INIT; + ff_thread_once(&init_static_once, mpa_synth_window_init); +} + /* cos(pi*i/18) */ #define C1 FIXHR(0.98480775301220805936/2) #define C2 FIXHR(0.93969262078590838405/2) |