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

[Lynne]

ffmpeg | branch: master | Lynne <dev at lynne.ee> | Tue Jun 13 04:04:28 2023 +0200| [f30b979ca20fa9589872328dbae05cb1dc7c64fd] | committer: Lynne

pthread_frame: uninit the hwaccel of each frame thread

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 any.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=f30b979ca20fa9589872328dbae05cb1dc7c64fd
---

 libavcodec/pthread_frame.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libavcodec/pthread_frame.c b/libavcodec/pthread_frame.c
index 28335231fd..008f3da43b 100644
--- a/libavcodec/pthread_frame.c
+++ b/libavcodec/pthread_frame.c
@@ -751,6 +751,10 @@ void ff_frame_thread_free(AVCodecContext *avctx, int thread_count)
             if (codec->close && p->thread_init != UNINITIALIZED)
                 codec->close(ctx);
 
+            /* When using a threadsafe hwaccel, this is where
+             * each thread's context is uninit'd and freed. */
+            ff_hwaccel_uninit(ctx);
+
             if (ctx->priv_data) {
                 if (codec->p.priv_class)
                     av_opt_free(ctx->priv_data);