From: Sebastien Zwickert <[email protected]>

Avoid possible issues with memmapped hardware buffers in
case VDA is not doing a conversion on behalf of the user
and make the code more proper as working example.

CC: [email protected]
Signed-off-by: Luca Barbato <[email protected]>
---
 avconv_vda.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/avconv_vda.c b/avconv_vda.c
index 40f87c4..d86076e 100644
--- a/avconv_vda.c
+++ b/avconv_vda.c
@@ -76,6 +76,8 @@ static int vda_retrieve_data(AVCodecContext *s, AVFrame 
*frame)
                   data, linesize, vda->tmp_frame->format,
                   frame->width, frame->height);
 
+    CVPixelBufferUnlockBaseAddress(pixbuf, kCVPixelBufferLock_ReadOnly);
+
     ret = av_frame_copy_props(vda->tmp_frame, frame);
     if (ret < 0)
         return ret;
-- 
1.9.0

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