<quinkbl...@foxmail.com> 于2020年8月27日周四 下午5:39写道：
>
> From: Zhao Zhili <zhiliz...@tencent.com>
>
> The lock is used in clear_frame_queue().
> ---
> libavcodec/videotoolboxenc.c | 11 +++++++----
> 1 file changed, 7 insertions(+), 4 deletions(-)
>
> diff --git a/libavcodec/videotoolboxenc.c b/libavcodec/videotoolboxenc.c
> index 988782f10d..758db9641f 100644
> --- a/libavcodec/videotoolboxenc.c
> +++ b/libavcodec/videotoolboxenc.c
> @@ -2496,14 +2496,17 @@ static av_cold int vtenc_close(AVCodecContext *avctx)
> {
> VTEncContext *vtctx = avctx->priv_data;
>
> - pthread_cond_destroy(&vtctx->cv_sample_sent);
> - pthread_mutex_destroy(&vtctx->lock);
> -
> - if(!vtctx->session) return 0;
> + if(!vtctx->session) {
> + pthread_cond_destroy(&vtctx->cv_sample_sent);
> + pthread_mutex_destroy(&vtctx->lock);
> + return 0;
> + }
>
> VTCompressionSessionCompleteFrames(vtctx->session,
> kCMTimeIndefinite);
> clear_frame_queue(vtctx);
> + pthread_cond_destroy(&vtctx->cv_sample_sent);
> + pthread_mutex_destroy(&vtctx->lock);
> CFRelease(vtctx->session);
> vtctx->session = NULL;
>
> --
> 2.28.0
>
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This patch look better than
https://patchwork.ffmpeg.org/project/ffmpeg/patch/20200827025327.28334-1...@chinaffmpeg.org/
Thanks
Steven
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