[opencv] 38/53: highgui(macos): fix video file reading via AVFoundation

[Nobuhiro Iwamatsu]

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iwamatsu pushed a commit to annotated tag 2.4.13.3
in repository opencv.

commit aae7621243d161d50e1c579925855a30b35bc8be
Author: Alexander Alekhin <alexander.alekhin at intel.com>
Date:   Sat Jun 24 11:01:33 2017 +0300

    highgui(macos): fix video file reading via AVFoundation
---
 modules/highgui/src/cap_avfoundation_mac.mm | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/modules/highgui/src/cap_avfoundation_mac.mm b/modules/highgui/src/cap_avfoundation_mac.mm
index c56795d..fbc4845 100644
--- a/modules/highgui/src/cap_avfoundation_mac.mm
+++ b/modules/highgui/src/cap_avfoundation_mac.mm
@@ -697,12 +697,12 @@ CvCaptureFile::CvCaptureFile(const char* filename) {
         return;
     }
 
-    NSArray *tracks = [mAsset tracksWithMediaType:AVMediaTypeAudio];
+    NSArray *tracks = [mAsset tracksWithMediaType:AVMediaTypeVideo];
     if ([tracks count] == 0) {
-      fprintf(stderr, "OpenCV: Couldn't read movie file \"%s\"\n", filename);
-      [localpool drain];
-      started = 0;
-      return;
+        fprintf(stderr, "OpenCV: Couldn't read video stream from file \"%s\"\n", filename);
+        [localpool drain];
+        started = 0;
+        return;
     }
 
     mAssetTrack = [tracks[0] retain];

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