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| author | Andreas Rheinhardt <andreas.rheinhardt@gmail.com> | 2020-11-27 01:09:04 +0100 |
|---|---|---|
| committer | Andreas Rheinhardt <andreas.rheinhardt@gmail.com> | 2020-12-04 15:46:46 +0100 |
| commit | 1d2d91d1cfbd3fe31b1fbf84822aca5bc8187ac6 (patch) | |
| tree | 9848b16dd4ae30f40e0f3fc10b7871ca7560b6a9 /libavcodec | |
| parent | f41f58f0a74bb7728b2b2a36b9280a827489db48 (diff) | |
| download | ffmpeg-1d2d91d1cfbd3fe31b1fbf84822aca5bc8187ac6.tar.gz | |
avcodec/tiff: Make decoder init-threadsafe
The only thing that stands in the way of adding the
FF_CODEC_CAP_INIT_THREADSAFE flag to the TIFF decoder is its usage
of ff_codec_open2_recursive(): This function requires its caller to hold
the lock for the mutex that guards initialization of AVCodecContexts
whose codecs have a non-threadsafe init function and only callers whose
codec does not have the FF_CODEC_CAP_INIT_THREADSAFE flag set hold said
lock (the others don't need to care about said lock). But one can set
the flag if one switches to avcodec_open2() at the same time.
Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/tiff.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/tiff.c b/libavcodec/tiff.c index 2e45464218..fa1f44ce1d 100644 --- a/libavcodec/tiff.c +++ b/libavcodec/tiff.c @@ -2168,7 +2168,7 @@ static av_cold int tiff_init(AVCodecContext *avctx) s->avctx_mjpeg->flags2 = avctx->flags2; s->avctx_mjpeg->dct_algo = avctx->dct_algo; s->avctx_mjpeg->idct_algo = avctx->idct_algo; - ret = ff_codec_open2_recursive(s->avctx_mjpeg, codec, NULL); + ret = avcodec_open2(s->avctx_mjpeg, codec, NULL); if (ret < 0) { return ret; } @@ -2219,6 +2219,6 @@ AVCodec ff_tiff_decoder = { .close = tiff_end, .decode = decode_frame, .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS, - .caps_internal = FF_CODEC_CAP_INIT_CLEANUP, + .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP, .priv_class = &tiff_decoder_class, }; |