This is a part of an online Codename One course published around 2017 see it all for free at https://debugagent.com/series/cn1

1. Building Native Camera Access - Part V

2. -(void*)getView{
return container;
}
-(int)getFlash{
return flash;
}
-(int)getFacing{
return direction;
}
-(BOOL)isFacingFront{
return direction == FACING_FRONT;
}
-(BOOL)isFacingBack{
return direction == FACING_BACK;
}
-(int)getPreviewWidth{
return (int) previewLayer.frame.size.width;
}
-(int)getPreviewHeight{
return (int) previewLayer.frame.size.height;
}
-(BOOL)isSupported{
return YES;
}
com_codename1_camerakit_impl_CameraNativeAccessImpl.m

3. -(void*)getView{
return container;
}
-(int)getFlash{
return flash;
}
-(int)getFacing{
return direction;
}
-(BOOL)isFacingFront{
return direction == FACING_FRONT;
}
-(BOOL)isFacingBack{
return direction == FACING_BACK;
}
-(int)getPreviewWidth{
return (int) previewLayer.frame.size.width;
}
-(int)getPreviewHeight{
return (int) previewLayer.frame.size.height;
}
-(BOOL)isSupported{
return YES;
}
com_codename1_camerakit_impl_CameraNativeAccessImpl.m

4. -(void)setZoom:(float)param{
if(zoom != param) {
zoom = param;
dispatch_async(dispatch_get_main_queue(), ^{
[self updateZoom];
});
}
}
-(void)setFocus:(int)param{
if(focus != param) {
focus = param;
dispatch_async(dispatch_get_main_queue(), ^{
[self updateFocus];
});
}
}
-(void)setFlash:(int)param{
// same code...
}
-(void)setFacing:(int)param{
// same code...
}
-(void)setVideoQuality:(int)param{
// same code...
}
com_codename1_camerakit_impl_CameraNativeAccessImpl.m

5. -(void)setZoom:(float)param{
if(zoom != param) {
zoom = param;
dispatch_async(dispatch_get_main_queue(), ^{
[self updateZoom];
});
}
}
-(void)setFocus:(int)param{
if(focus != param) {
focus = param;
dispatch_async(dispatch_get_main_queue(), ^{
[self updateFocus];
});
}
}
-(void)setFlash:(int)param{
// same code...
}
-(void)setFacing:(int)param{
// same code...
}
-(void)setVideoQuality:(int)param{
// same code...
}
com_codename1_camerakit_impl_CameraNativeAccessImpl.m

6. -(float)getVerticalViewingAngle{
__block float fov = 0;
dispatch_sync(dispatch_get_main_queue(), ^{
fov = device.activeFormat.videoFieldOfView / 16.0 * 9;
});
return fov;
}
-(float)getHorizontalViewingAngle{
__block float fov = 0;
dispatch_sync(dispatch_get_main_queue(), ^{
fov = device.activeFormat.videoFieldOfView;
});
return fov;
}
com_codename1_camerakit_impl_CameraNativeAccessImpl.m

7. -(float)getVerticalViewingAngle{
__block float fov = 0;
dispatch_sync(dispatch_get_main_queue(), ^{
fov = device.activeFormat.videoFieldOfView / 16.0 * 9;
});
return fov;
}
-(float)getHorizontalViewingAngle{
__block float fov = 0;
dispatch_sync(dispatch_get_main_queue(), ^{
fov = device.activeFormat.videoFieldOfView;
});
return fov;
}
com_codename1_camerakit_impl_CameraNativeAccessImpl.m

8. -(void)captureImage{
dispatch_async(dispatch_get_main_queue(), ^{
capturingVideo = NO;
if([AVCapturePhotoOutput class]) {
if(photoOutput == nil) {
photoOutput = [[AVCapturePhotoOutput alloc] init];
}
AVCapturePhotoSettings* settings =
[AVCapturePhotoSettings photoSettings];
[photoOutput capturePhotoWithSettings:settings
delegate:self];
} else {
// ... Code for iOS 9 compatibility
}
});
}
com_codename1_camerakit_impl_CameraNativeAccessImpl.m

9. -(void)captureImage{
dispatch_async(dispatch_get_main_queue(), ^{
capturingVideo = NO;
if([AVCapturePhotoOutput class]) {
if(photoOutput == nil) {
photoOutput = [[AVCapturePhotoOutput alloc] init];
}
AVCapturePhotoSettings* settings =
[AVCapturePhotoSettings photoSettings];
[photoOutput capturePhotoWithSettings:settings
delegate:self];
} else {
// ... Code for iOS 9 compatibility
}
});
}
com_codename1_camerakit_impl_CameraNativeAccessImpl.m

10. -(void)captureImage{
dispatch_async(dispatch_get_main_queue(), ^{
capturingVideo = NO;
if([AVCapturePhotoOutput class]) {
if(photoOutput == nil) {
photoOutput = [[AVCapturePhotoOutput alloc] init];
}
AVCapturePhotoSettings* settings =
[AVCapturePhotoSettings photoSettings];
[photoOutput capturePhotoWithSettings:settings
delegate:self];
} else {
// ... Code for iOS 9 compatibility
}
});
}
com_codename1_camerakit_impl_CameraNativeAccessImpl.m

11. @interface com_codename1_camerakit_impl_CameraNativeAccessImpl :
NSObject<
AVCapturePhotoCaptureDelegate,
AVCaptureFileOutputRecordingDelegate> {
// everything here is unchanged
}
// everything here is unchanged
@end
com_codename1_camerakit_impl_CameraNativeAccessImpl.h

12. -(void)captureOutput:(AVCapturePhotoOutput *)captureOutput
didFinishProcessingPhotoSampleBuffer:(CMSampleBufferRef)
photoSampleBuffer
previewPhotoSampleBuffer:(CMSampleBufferRef)previewPhotoSampleBuffer
resolvedSettings:(AVCaptureResolvedPhotoSettings *)resolvedSettings
bracketSettings:(AVCaptureBracketedStillImageSettings *)bracketSettings
error:(NSError *)error {
if(error == nil && !capturingVideo) {
NSData *d = [AVCapturePhotoOutput
JPEGPhotoDataRepresentationForJPEGSampleBuffer:photoSampleBuffer
previewPhotoSampleBuffer:previewPhotoSampleBuffer];
JAVA_OBJECT byteArray = nsDataToByteArr(d);
com_codename1_camerakit_impl_CameraCallbacks_onImage___byte_1ARRAY(
getThreadLocalData(), byteArray);
return;
}
if(error) {
struct ThreadLocalData* d = getThreadLocalData();
com_codename1_camerakit_impl_CameraCallbacks_onError___java_lang_String_java_lang_String_java_lang_String(
d, nil, nil, nil);
return;
}
}
com_codename1_camerakit_impl_CameraNativeAccessImpl.m

13. -(void)captureOutput:(AVCapturePhotoOutput *)captureOutput
didFinishProcessingPhotoSampleBuffer:(CMSampleBufferRef)
photoSampleBuffer
previewPhotoSampleBuffer:(CMSampleBufferRef)previewPhotoSampleBuffer
resolvedSettings:(AVCaptureResolvedPhotoSettings *)resolvedSettings
bracketSettings:(AVCaptureBracketedStillImageSettings *)bracketSettings
error:(NSError *)error {
if(error == nil && !capturingVideo) {
NSData *d = [AVCapturePhotoOutput
JPEGPhotoDataRepresentationForJPEGSampleBuffer:photoSampleBuffer
previewPhotoSampleBuffer:previewPhotoSampleBuffer];
JAVA_OBJECT byteArray = nsDataToByteArr(d);
com_codename1_camerakit_impl_CameraCallbacks_onImage___byte_1ARRAY(
getThreadLocalData(), byteArray);
return;
}
if(error) {
struct ThreadLocalData* d = getThreadLocalData();
com_codename1_camerakit_impl_CameraCallbacks_onError___java_lang_String_java_lang_String_java_lang_String(
d, nil, nil, nil);
return;
}
}
com_codename1_camerakit_impl_CameraNativeAccessImpl.m

14. -(void)captureOutput:(AVCapturePhotoOutput *)captureOutput
didFinishProcessingPhotoSampleBuffer:(CMSampleBufferRef)
photoSampleBuffer
previewPhotoSampleBuffer:(CMSampleBufferRef)previewPhotoSampleBuffer
resolvedSettings:(AVCaptureResolvedPhotoSettings *)resolvedSettings
bracketSettings:(AVCaptureBracketedStillImageSettings *)bracketSettings
error:(NSError *)error {
if(error == nil && !capturingVideo) {
NSData *d = [AVCapturePhotoOutput
JPEGPhotoDataRepresentationForJPEGSampleBuffer:photoSampleBuffer
previewPhotoSampleBuffer:previewPhotoSampleBuffer];
JAVA_OBJECT byteArray = nsDataToByteArr(d);
com_codename1_camerakit_impl_CameraCallbacks_onImage___byte_1ARRAY(
getThreadLocalData(), byteArray);
return;
}
if(error) {
struct ThreadLocalData* d = getThreadLocalData();
com_codename1_camerakit_impl_CameraCallbacks_onError___java_lang_String_java_lang_String_java_lang_String(
d, nil, nil, nil);
return;
}
}
com_codename1_camerakit_impl_CameraNativeAccessImpl.m

15. -(void)captureOutput:(AVCapturePhotoOutput *)captureOutput
didFinishProcessingPhotoSampleBuffer:(CMSampleBufferRef)
photoSampleBuffer
previewPhotoSampleBuffer:(CMSampleBufferRef)previewPhotoSampleBuffer
resolvedSettings:(AVCaptureResolvedPhotoSettings *)resolvedSettings
bracketSettings:(AVCaptureBracketedStillImageSettings *)bracketSettings
error:(NSError *)error {
if(error == nil && !capturingVideo) {
NSData *d = [AVCapturePhotoOutput
JPEGPhotoDataRepresentationForJPEGSampleBuffer:photoSampleBuffer
previewPhotoSampleBuffer:previewPhotoSampleBuffer];
JAVA_OBJECT byteArray = nsDataToByteArr(d);
com_codename1_camerakit_impl_CameraCallbacks_onImage___byte_1ARRAY(
getThreadLocalData(), byteArray);
return;
}
if(error) {
struct ThreadLocalData* d = getThreadLocalData();
com_codename1_camerakit_impl_CameraCallbacks_onError___java_lang_String_java_lang_String_java_lang_String(
d, nil, nil, nil);
return;
}
}
com_codename1_camerakit_impl_CameraNativeAccessImpl.m

16. -(void)captureOutput:(AVCapturePhotoOutput *)captureOutput
didFinishProcessingPhotoSampleBuffer:(CMSampleBufferRef)
photoSampleBuffer
previewPhotoSampleBuffer:(CMSampleBufferRef)previewPhotoSampleBuffer
resolvedSettings:(AVCaptureResolvedPhotoSettings *)resolvedSettings
bracketSettings:(AVCaptureBracketedStillImageSettings *)bracketSettings
error:(NSError *)error {
if(error == nil && !capturingVideo) {
NSData *d = [AVCapturePhotoOutput
JPEGPhotoDataRepresentationForJPEGSampleBuffer:photoSampleBuffer
previewPhotoSampleBuffer:previewPhotoSampleBuffer];
JAVA_OBJECT byteArray = nsDataToByteArr(d);
com_codename1_camerakit_impl_CameraCallbacks_onImage___byte_1ARRAY(
getThreadLocalData(), byteArray);
return;
}
if(error) {
struct ThreadLocalData* d = getThreadLocalData();
com_codename1_camerakit_impl_CameraCallbacks_onError___java_lang_String_java_lang_String_java_lang_String(
d, nil, nil, nil);
return;
}
}
com_codename1_camerakit_impl_CameraNativeAccessImpl.m

17. -(void)captureOutput:(AVCapturePhotoOutput *)captureOutput
didFinishProcessingPhotoSampleBuffer:(CMSampleBufferRef)
photoSampleBuffer
previewPhotoSampleBuffer:(CMSampleBufferRef)previewPhotoSampleBuffer
resolvedSettings:(AVCaptureResolvedPhotoSettings *)resolvedSettings
bracketSettings:(AVCaptureBracketedStillImageSettings *)bracketSettings
error:(NSError *)error {
if(error == nil && !capturingVideo) {
NSData *d = [AVCapturePhotoOutput
JPEGPhotoDataRepresentationForJPEGSampleBuffer:photoSampleBuffer
previewPhotoSampleBuffer:previewPhotoSampleBuffer];
JAVA_OBJECT byteArray = nsDataToByteArr(d);
com_codename1_camerakit_impl_CameraCallbacks_onImage___byte_1ARRAY(
getThreadLocalData(), byteArray);
return;
}
if(error) {
struct ThreadLocalData* d = getThreadLocalData();
com_codename1_camerakit_impl_CameraCallbacks_onError___java_lang_String_java_lang_String_java_lang_String(
d, nil, nil, nil);
return;
}
}
com_codename1_camerakit_impl_CameraNativeAccessImpl.m

18. #include "com_codename1_camerakit_impl_CameraCallbacks.h"
extern JAVA_OBJECT nsDataToByteArr(NSData *data);
com_codename1_camerakit_impl_CameraNativeAccessImpl.m

19. if(stillImageOutput == nil) {
stillImageOutput = [[AVCaptureStillImageOutput alloc] init];
NSDictionary *outputSettings = [[NSDictionary alloc]
initWithObjectsAndKeys: AVVideoCodecJPEG, AVVideoCodecKey, nil];
[stillImageOutput setOutputSettings:outputSettings];
}
[captureSession addOutput:stillImageOutput];
AVCaptureConnection *videoConnection = nil;
for (AVCaptureConnection *connection in stillImageOutput.connections) {
for (AVCaptureInputPort *port in [connection inputPorts]) {
if ([[port mediaType] isEqual:AVMediaTypeVideo] ) {
videoConnection = connection;
break;
}
}
if (videoConnection){
break;
}
}
[stillImageOutput
captureStillImageAsynchronouslyFromConnection:videoConnection
com_codename1_camerakit_impl_CameraNativeAccessImpl.m

20. for (AVCaptureInputPort *port in [connection inputPorts]) {
if ([[port mediaType] isEqual:AVMediaTypeVideo] ) {
videoConnection = connection;
break;
}
}
if (videoConnection){
break;
}
}
[stillImageOutput
captureStillImageAsynchronouslyFromConnection:videoConnection
completionHandler:^(CMSampleBufferRef imageSampleBuffer,
NSError *error) {
NSData *d = [AVCaptureStillImageOutput
jpegStillImageNSDataRepresentation:imageSampleBuffer];
JAVA_OBJECT byteArray = nsDataToByteArr(d);
com_codename1_camerakit_impl_CameraCallbacks_onImage___byte_1ARRAY(
getThreadLocalData(), byteArray);
[captureSession removeOutput:stillImageOutput];
}];
com_codename1_camerakit_impl_CameraNativeAccessImpl.m

21. for (AVCaptureInputPort *port in [connection inputPorts]) {
if ([[port mediaType] isEqual:AVMediaTypeVideo] ) {
videoConnection = connection;
break;
}
}
if (videoConnection){
break;
}
}
[stillImageOutput
captureStillImageAsynchronouslyFromConnection:videoConnection
completionHandler:^(CMSampleBufferRef imageSampleBuffer,
NSError *error) {
NSData *d = [AVCaptureStillImageOutput
jpegStillImageNSDataRepresentation:imageSampleBuffer];
JAVA_OBJECT byteArray = nsDataToByteArr(d);
com_codename1_camerakit_impl_CameraCallbacks_onImage___byte_1ARRAY(
getThreadLocalData(), byteArray);
[captureSession removeOutput:stillImageOutput];
}];
com_codename1_camerakit_impl_CameraNativeAccessImpl.m

22. -(void)captureVideo{
NSURL *furl = [NSURL fileURLWithPath:[NSTemporaryDirectory()
stringByAppendingPathComponent:@"temp.mov"]];
[self captureVideoFile:[furl absoluteString]];
}
com_codename1_camerakit_impl_CameraNativeAccessImpl.m

23. -(void)captureVideoFile:(NSString*)param{
dispatch_async(dispatch_get_main_queue(), ^{
if(movieOutput != nil) {
[captureSession removeOutput:movieOutput];
[movieOutput stopRecording];
[movieOutput release];
}
capturingVideo = YES;
movieOutput = [[AVCaptureMovieFileOutput alloc] init];
[captureSession addOutput:movieOutput];
[movieOutput startRecordingToOutputFileURL:
[NSURL URLWithString:param] recordingDelegate:self];
});
}
com_codename1_camerakit_impl_CameraNativeAccessImpl.m

24. -(void)captureVideoFile:(NSString*)param{
dispatch_async(dispatch_get_main_queue(), ^{
if(movieOutput != nil) {
[captureSession removeOutput:movieOutput];
[movieOutput stopRecording];
[movieOutput release];
}
capturingVideo = YES;
movieOutput = [[AVCaptureMovieFileOutput alloc] init];
[captureSession addOutput:movieOutput];
[movieOutput startRecordingToOutputFileURL:
[NSURL URLWithString:param] recordingDelegate:self];
});
}
com_codename1_camerakit_impl_CameraNativeAccessImpl.m

25. -(void)captureVideoFile:(NSString*)param{
dispatch_async(dispatch_get_main_queue(), ^{
if(movieOutput != nil) {
[captureSession removeOutput:movieOutput];
[movieOutput stopRecording];
[movieOutput release];
}
capturingVideo = YES;
movieOutput = [[AVCaptureMovieFileOutput alloc] init];
[captureSession addOutput:movieOutput];
[movieOutput startRecordingToOutputFileURL:
[NSURL URLWithString:param] recordingDelegate:self];
});
}
com_codename1_camerakit_impl_CameraNativeAccessImpl.m

26. - (void)captureOutput:(AVCaptureFileOutput *)output
didFinishRecordingToOutputFileAtURL:(NSURL *)outputFileURL
fromConnections:(NSArray<AVCaptureConnection *> *)connections
error:(NSError *)error {
if(capturingVideo && outputFileURL != nil) {
NSString* url = [outputFileURL absoluteString];
struct ThreadLocalData* d = getThreadLocalData();
com_codename1_camerakit_impl_CameraCallbacks_onVideo___java_lang_String
(d, fromNSString(d, url));
return;
}
if(error != nil) {
struct ThreadLocalData* d = getThreadLocalData();
com_codename1_camerakit_impl_CameraCallbacks_onError___java_lang_String_java_lang_String_java_lang_String
(d, nil, nil, nil);
return;
}
}
com_codename1_camerakit_impl_CameraNativeAccessImpl.m

27. - (void)captureOutput:(AVCaptureFileOutput *)output
didFinishRecordingToOutputFileAtURL:(NSURL *)outputFileURL
fromConnections:(NSArray<AVCaptureConnection *> *)connections
error:(NSError *)error {
if(capturingVideo && outputFileURL != nil) {
NSString* url = [outputFileURL absoluteString];
struct ThreadLocalData* d = getThreadLocalData();
com_codename1_camerakit_impl_CameraCallbacks_onVideo___java_lang_String
(d, fromNSString(d, url));
return;
}
if(error != nil) {
struct ThreadLocalData* d = getThreadLocalData();
com_codename1_camerakit_impl_CameraCallbacks_onError___java_lang_String_java_lang_String_java_lang_String
(d, nil, nil, nil);
return;
}
}
com_codename1_camerakit_impl_CameraNativeAccessImpl.m

28. -(void)stopVideo{
dispatch_async(dispatch_get_main_queue(), ^{
[movieOutput stopRecording];
[captureSession removeOutput:movieOutput];
[movieOutput release];
movieOutput = nil;
});
}
com_codename1_camerakit_impl_CameraNativeAccessImpl.m