Corrupt movie on iPhone 5s

[kusmi]

The resulting movies do not seem playable (corrupt) when recording on iPhone 5s - it worked for iPhone 5.

It's a pity the project "closed" - it was such a great tool to produce product-tour videos. Because of special requirements, we linked the files directly into a dedicated beta-version of our app just to produce nice looking videos.

[coolstar]

This is most likely an issue with iOS 7 as when you try recording the video outside the app it records a black screen. However, if both devices are staying in the app, it seems like it's a problem actually with the iPhone 5s changing something. It's a pity I can't provide up-to-date source anymore to fix it and can't fix it myself as I can't afford a 5s :(

[kusmi]

In my setup I don't leave the app - as I added the screen-recording classes to my project. I'm not sure if this is a IOSurface issue - because if I add the following debug code to the project:

dispatch_async(_videoQueue, ^{
            while(_videoWriterInput != nil && !_videoWriterInput.readyForMoreMediaData)
                usleep(1000);
// debug                
if (debug % 30 == 0) {
    CIImage* ciImage = [CIImage imageWithCVPixelBuffer:pixelBuffer];
    CIContext* temporaryContext = [CIContext contextWithOptions:nil];
    CGImageRef videoImage = [temporaryContext
                             createCGImage:ciImage
                             fromRect:CGRectMake(0, 0,
                                                 CVPixelBufferGetWidth(pixelBuffer),
                                                 CVPixelBufferGetHeight(pixelBuffer))];
    UIImage* uiimage = [UIImage imageWithCGImage:videoImage];
    NSArray* paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString* documentsDirectory = [paths objectAtIndex:0];
    NSString* jpgPath = [documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:@"Debug%d.jpg", debug]];
    BOOL result = [UIImageJPEGRepresentation(uiimage, 1.0) writeToFile:jpgPath atomically:NO];
    NSLog(@"Write Debug JPG: %@ -> %@",jpgPath, result ? @"Success" : @"Error");
}
debug++;

if (_videoWriterInput != nil)
    [_pixelBufferAdaptor appendPixelBuffer: pixelBuffer withPresentationTime: frameTime];

CVPixelBufferRelease(pixelBuffer);      // release back into pool
});

The jpgs are written correctly - it's just the movie file, which seems not playable anymore.