Hi,
I got different video frame value when run the sample image target app.
But the video frame is (VideoMode:w=640 h=480) now.
What I need do if want the frame is (VideoMode:w=1280 h=720) ?
Addtional information:
device: iPad4, 1
version: 10.3.1
logs:
Some time:
2017-08-11 10:33:17.627463+0800 Vuforia[20838:10202240] VideoBackgroundConfig: size: 1536,2730 2017-08-11 10:33:17.627587+0800 Vuforia[20838:10202240] VideoMode:w=1280 h=720 2017-08-11 10:33:17.627713+0800 Vuforia[20838:10202240] width=1536.000 height=2048.000
Most of time:
2017-08-11 10:35:54.700191+0800 xxx[20849:10203248] VideoBackgroundConfig: size: 1536,2048 2017-08-11 10:35:54.700315+0800 xxx[20849:10203248] VideoMode:w=640 h=480 2017-08-11 10:35:54.700437+0800 xxx[20849:10203248] width=1536.000 height=2048.000
I also try to update the activeFormat befort ARcamera start. But not work.
- (AVCaptureDevice *)getFrontCamera
{
// get front camera device
NSArray *cameras = [AVCaptureDevice devicesWithMediaType:AVMediaTypeVideo];
for (AVCaptureDevice *device in cameras)
{
if (device.position == AVCaptureDevicePositionFront)
return device;
}
return nil;
}
- (void)setupFrontCamera
{
NSError *error = nil;
AVCaptureDevice* camera = [self getFrontCamera];
if(camera != nil && [camera lockForConfiguration:&error]){
AVCaptureDeviceFormat *activeFormat = [camera activeFormat];
NSLog(@"Camera activeFormat is %@", activeFormat.description);
if(activeFormat.highResolutionStillImageDimensions.height >= 720){
return;
}
for(AVCaptureDeviceFormat* format in camera.formats) {
// NSLog(@"Camera support format is %@", format.description);
CMVideoDimensions d = format.highResolutionStillImageDimensions;
if([format.mediaType isEqualToString: AVMediaTypeVideo] && d.height == 720){
camera.activeFormat = format;
NSLog(@"Video activeFormat updated to %@", [camera activeFormat]);
return;
}
}
[camera unlockForConfiguration];
}
}