[FFmpeg-devel] [PATCH] vda: unlock the pixel buffer base address.

Sebastien Zwickert dilaroga at gmail.com
Sat Jun 20 13:19:29 CEST 2015

The pixel buffer base address is never unlocked this causes
a bug with some pixel format types that are produced natively
by the hardware decoder: the first buffer was always used.
Unlock the pixel buffer base address fixes the issue.

 ffmpeg_vda.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ffmpeg_vda.c b/ffmpeg_vda.c
index d15648d..6fe4ed4 100644
--- a/ffmpeg_vda.c
+++ b/ffmpeg_vda.c
@@ -77,6 +77,8 @@ static int vda_retrieve_data(AVCodecContext *s, AVFrame *frame)
                   frame->width, frame->height);
     ret = av_frame_copy_props(vda->tmp_frame, frame);
+    CVPixelBufferUnlockBaseAddress(pixbuf, kCVPixelBufferLock_ReadOnly);
     if (ret < 0)
         return ret;
2.3.2 (Apple Git-55)

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