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avcodec/dvenc: Make encoder init-threadsafe 

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This commit is contained in:
Andreas Rheinhardt 2020-12-30 19:05:46 +01:00 committed by Andreas Rheinhardt
parent bc5e68ea88
commit e10d75610c
1 changed files with 9 additions and 2 deletions
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11
libavcodec/dvenc.c
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@ -33,6 +33,7 @@
#include "libavutil/mem_internal.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "libavutil/thread.h"
#include "avcodec.h"
#include "dv.h"
@ -68,8 +69,6 @@ static av_cold int dvvideo_encode_init(AVCodecContext *avctx)
return ret;
}
dv_vlc_map_tableinit();
memset(&fdsp,0, sizeof(fdsp));
memset(&mecc,0, sizeof(mecc));
memset(&pdsp,0, sizeof(pdsp));
@ -84,6 +83,13 @@ static av_cold int dvvideo_encode_init(AVCodecContext *avctx)
s->fdct[0] = fdsp.fdct;
s->fdct[1] = fdsp.fdct248;
#if !CONFIG_HARDCODED_TABLES
{
static AVOnce init_static_once = AV_ONCE_INIT;
ff_thread_once(&init_static_once, dv_vlc_map_tableinit);
}
#endif
return ff_dvvideo_init(avctx);
}
@ -1212,4 +1218,5 @@ const AVCodec ff_dvvideo_encoder = {
AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE
},
.priv_class = &dvvideo_encode_class,
.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE,
};