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Merge pull request #8981 from alalek:port_8979

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This commit is contained in:
Maksim Shabunin 2017-06-26 09:25:23 +00:00
commit 8c27ceb9de
1 changed files with 9 additions and 1 deletions
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10
modules/videoio/src/cap_avfoundation_mac.mm
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@ -694,7 +694,15 @@ CvCaptureFile::CvCaptureFile(const char* filename) {
return;
}
mAssetTrack = [[mAsset tracksWithMediaType: AVMediaTypeVideo][0] retain];
NSArray *tracks = [mAsset tracksWithMediaType:AVMediaTypeVideo];
if ([tracks count] == 0) {
fprintf(stderr, "OpenCV: Couldn't read video stream from file \"%s\"\n", filename);
[localpool drain];
started = 0;
return;
}
mAssetTrack = [tracks[0] retain];
if ( ! setupReadingAt(kCMTimeZero) ) {
fprintf(stderr, "OpenCV: Couldn't read movie file \"%s\"\n", filename);