[FFmpeg-cvslog] lavc/videotoolbox: fix failure to decode PAFF

[Rodger Combs]

ffmpeg | branch: master | Rodger Combs <rodger.combs at gmail.com> | Wed Mar 28 23:19:28 2018 -0500| [4c0798578cab410b4ad9c27bc47b5e09c9a66aba] | committer: Aman Gupta

lavc/videotoolbox: fix failure to decode PAFF

Signed-off-by: Aman Gupta <aman at tmm1.net>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=4c0798578cab410b4ad9c27bc47b5e09c9a66aba
---

 libavcodec/videotoolbox.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/libavcodec/videotoolbox.c b/libavcodec/videotoolbox.c
index f82c31c5df..57b6698e1b 100644
--- a/libavcodec/videotoolbox.c
+++ b/libavcodec/videotoolbox.c
@@ -326,11 +326,8 @@ static int videotoolbox_set_frame(AVCodecContext *avctx, AVFrame *frame)
 
     CVPixelBufferRef *ref = (CVPixelBufferRef *)frame->buf[0]->data;
 
-    if (*ref) {
-        av_log(avctx, AV_LOG_ERROR, "videotoolbox: frame already set?\n");
-        av_frame_unref(frame);
-        return AVERROR_EXTERNAL;
-    }
+    if (*ref)
+        CVPixelBufferRelease(*ref);
 
     *ref = vtctx->frame;
     vtctx->frame = NULL;