[FFmpeg-devel] [PATCH] pthread_frame: uninit the hwaccel of each frame thread

Lynne dev at lynne.ee
Tue Jun 13 05:11:35 EEST 2023

The issue is that with a threadsafe hwaccel and multiple enabled
frame threads, hwaccel->uninit() is never called.
Previously, the function was guaranteed to never have any threads
with hwaccel contexts, so it never bothered to uninit it.

Patch attached.

diff --git a/libavcodec/pthread_frame.c b/libavcodec/pthread_frame.c
index 28335231fd..bdc1718ab3 100644
--- a/libavcodec/pthread_frame.c
+++ b/libavcodec/pthread_frame.c
@@ -751,6 +751,8 @@ void ff_frame_thread_free(AVCodecContext *avctx, int thread_count)
             if (codec->close && p->thread_init != UNINITIALIZED)
+            ff_hwaccel_uninit(ctx);
             if (ctx->priv_data) {
                 if (codec->p.priv_class)
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