diff options
| author | Andreas Rheinhardt <andreas.rheinhardt@outlook.com> | 2021-05-07 05:08:13 +0200 |
|---|---|---|
| committer | Andreas Rheinhardt <andreas.rheinhardt@outlook.com> | 2021-05-12 06:00:14 +0200 |
| commit | 99ed54334053bb78a37545c4844cff6b4c9e658d (patch) | |
| tree | f35d303d7d8bc766c4a39df0c74ec5707085432a | |
| parent | 3c26773ae28ebd6a549491d432a6990450b068cf (diff) | |
avcodec/j2kenc: Make encoder init-threadsafe
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
| -rw-r--r-- | libavcodec/j2kenc.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/libavcodec/j2kenc.c b/libavcodec/j2kenc.c index 17eb959d73..82ad3284b5 100644 --- a/libavcodec/j2kenc.c +++ b/libavcodec/j2kenc.c @@ -74,6 +74,7 @@ #include "libavutil/opt.h" #include "libavutil/intreadwrite.h" #include "libavutil/avstring.h" +#include "libavutil/thread.h" #define NMSEDEC_BITS 7 #define NMSEDEC_FRACBITS (NMSEDEC_BITS-1) @@ -591,6 +592,7 @@ static void init_luts(void) lut_nmsedec_ref0[i] = FFMAX(((i * i - (i << NMSEDEC_BITS) + (1 << 2 * NMSEDEC_FRACBITS) + (1 << (NMSEDEC_FRACBITS - 1))) & mask) << 1, 0); } + ff_jpeg2000_init_tier1_luts(); } /* tier-1 routines */ @@ -1713,6 +1715,7 @@ static int parse_layer_rates(Jpeg2000EncoderContext *s) static av_cold int j2kenc_init(AVCodecContext *avctx) { + static AVOnce init_static_once = AV_ONCE_INIT; int i, ret; Jpeg2000EncoderContext *s = avctx->priv_data; Jpeg2000CodingStyle *codsty = &s->codsty; @@ -1779,8 +1782,7 @@ static av_cold int j2kenc_init(AVCodecContext *avctx) return ret; } - ff_jpeg2000_init_tier1_luts(); - init_luts(); + ff_thread_once(&init_static_once, init_luts); init_quantization(s); if ((ret=init_tiles(s)) < 0) @@ -1849,5 +1851,5 @@ const AVCodec ff_jpeg2000_encoder = { AV_PIX_FMT_NONE }, .priv_class = &j2k_class, - .caps_internal = FF_CODEC_CAP_INIT_CLEANUP, + .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP, }; |