From c06fdacc3dc706e70d953917fea845532d3703ca Mon Sep 17 00:00:00 2001
From: Sebastien Zwickert <dilaroga@gmail.com>
Date: Sat, 20 Jun 2015 13:19:29 +0200
Subject: [PATCH] vda: unlock the pixel buffer base address.

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 d15648dd8e..6fe4ed45ea 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;