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From: James Almer <jamrial@gmail.com>
To: ffmpeg-devel@ffmpeg.org
Date: Sat, 26 Apr 2025 20:41:22 -0300
Message-ID: <20250426234122.4953-1-jamrial@gmail.com>
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Subject: [FFmpeg-devel] [PATCH] avcodec/pthread_frame: sync
decoded_side_data arrays with all worker threads
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After being filled by FFCodec->init() from the first worker thread, it needs to
be copied to every other thread context. Otherwise, its entries will not be
present when ff_decode_frame_props() populates output frames.
Signed-off-by: James Almer <jamrial@gmail.com>
---
libavcodec/pthread_frame.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/libavcodec/pthread_frame.c b/libavcodec/pthread_frame.c
index 4ea5dd3698..7019108af6 100644
--- a/libavcodec/pthread_frame.c
+++ b/libavcodec/pthread_frame.c
@@ -905,6 +905,14 @@ static av_cold int init_thread(PerThreadContext *p, int *threads_to_free,
if (err < 0)
return err;
}
+ } else {
+ for (int i = 0; i < avctx->nb_decoded_side_data; i++) {
+ err = av_frame_side_data_clone(©->decoded_side_data,
+ ©->nb_decoded_side_data,
+ avctx->decoded_side_data[i], 0);
+ if (err < 0)
+ return err;
+ }
}
atomic_init(&p->debug_threads, (copy->debug & FF_DEBUG_THREADS) != 0);
--
2.49.0
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