ffmpeg  -s 320x240 -f video4linux2 -i /dev/video0 -f mpegts -vcodec libx264 udp://192.168.1.34:1234

[video writeToFile:@"videoStream.m4v" atomically:YES];
NSURL *url = [NSURL fileURLWithPath:@"videoStream.m4v"];

MPMoviePlayerController *videoController = [[MPMoviePlayerController alloc] initWithContentURL:url];

[videoController.view setFrame:CGRectMake(100, 100, 150, 150)];

[self.view addSubview:videoController.view];

[videoController play];