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Camera1.java
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Camera1.java
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package com.wonderkiln.camerakit;
import android.graphics.Rect;
import android.graphics.YuvImage;
import android.hardware.Camera;
import android.media.CamcorderProfile;
import android.media.MediaRecorder;
import android.os.Build;
import android.os.Environment;
import android.os.Handler;
import android.os.Looper;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.util.Log;
import com.google.android.gms.vision.Detector;
import com.google.android.gms.vision.text.TextBlock;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import java.util.TreeSet;
import static com.wonderkiln.camerakit.CameraKit.Constants.FLASH_OFF;
import static com.wonderkiln.camerakit.CameraKit.Constants.FOCUS_CONTINUOUS;
import static com.wonderkiln.camerakit.CameraKit.Constants.FOCUS_OFF;
import static com.wonderkiln.camerakit.CameraKit.Constants.FOCUS_TAP;
import static com.wonderkiln.camerakit.CameraKit.Constants.METHOD_STANDARD;
import static com.wonderkiln.camerakit.CameraKit.Constants.METHOD_STILL;
@SuppressWarnings("deprecation")
public class Camera1 extends CameraImpl {
private static final String TAG = Camera1.class.getSimpleName();
private static final int FOCUS_AREA_SIZE_DEFAULT = 300;
private static final int FOCUS_METERING_AREA_WEIGHT_DEFAULT = 1000;
private static final int DELAY_MILLIS_BEFORE_RESETTING_FOCUS = 3000;
private int mCameraId;
private Camera mCamera;
private Camera.Parameters mCameraParameters;
private CameraProperties mCameraProperties;
private Camera.CameraInfo mCameraInfo;
private Size mCaptureSize;
private Size mVideoSize;
private Size mPreviewSize;
private MediaRecorder mMediaRecorder;
private Camera.AutoFocusCallback mAutofocusCallback;
private boolean capturingImage = false;
private boolean mShowingPreview;
private boolean mRecording;
private int mDisplayOrientation;
private int mDeviceOrientation;
@Facing
private int mFacing;
@Flash
private int mFlash;
@Focus
private int mFocus;
@CaptureMethod
private int mMethod;
@VideoQuality
private int mVideoQuality;
private Detector<TextBlock> mTextDetector;
private int mVideoBitRate;
private boolean mLockVideoAspectRatio;
private Handler mainHandler = new Handler(Looper.getMainLooper());
private Handler mHandler = new Handler();
private FrameProcessingRunnable mFrameProcessor;
private float mZoom = 1.f;
private VideoCapturedCallback mVideoCallback;
private final Object mCameraLock = new Object();
private File mMediaRecorderOutputFile;
Camera1(EventDispatcher eventDispatcher, PreviewImpl preview) {
super(eventDispatcher, preview);
preview.setCallback(new PreviewImpl.Callback() {
@Override
public void onSurfaceChanged() {
if (mCamera != null) {
if (mShowingPreview) {
mCamera.stopPreview();
mShowingPreview = false;
}
setDisplayAndDeviceOrientation();
setupPreview();
if (!mShowingPreview) {
mCamera.startPreview();
mShowingPreview = true;
}
}
}
});
mCameraInfo = new Camera.CameraInfo();
}
// CameraImpl:
@Override
void start() {
setFacing(mFacing);
openCamera();
if (mPreview.isReady()) {
setDisplayAndDeviceOrientation();
setupPreview();
mCamera.startPreview();
mShowingPreview = true;
}
}
@Override
void stop() {
mHandler.removeCallbacksAndMessages(null);
if (mCamera != null) {
try {
mCamera.stopPreview();
} catch (Exception e) {
notifyErrorListener(e);
}
}
mShowingPreview = false;
releaseMediaRecorder();
releaseCamera();
if (mFrameProcessor != null) {
mFrameProcessor.cleanup();
}
}
void setDisplayAndDeviceOrientation() {
setDisplayAndDeviceOrientation(this.mDisplayOrientation, this.mDeviceOrientation);
}
@Override
void setDisplayAndDeviceOrientation(int displayOrientation, int deviceOrientation) {
this.mDisplayOrientation = displayOrientation;
this.mDeviceOrientation = deviceOrientation;
synchronized (mCameraLock) {
if (isCameraOpened()) {
try {
mCamera.setDisplayOrientation(calculatePreviewRotation());
} catch (RuntimeException e) {
// Camera is released. Ignore. Orientations are still valid in local member fields
// so next time camera starts it will have correct configuration.
}
}
}
}
@Override
void setFacing(@Facing int facing) {
synchronized (mCameraLock) {
int internalFacing = new ConstantMapper.Facing(facing).map();
if (internalFacing == -1) {
return;
}
for (int i = 0, count = Camera.getNumberOfCameras(); i < count; i++) {
Camera.getCameraInfo(i, mCameraInfo);
if (mCameraInfo.facing == internalFacing) {
mCameraId = i;
mFacing = facing;
break;
}
}
if (mFacing == facing && isCameraOpened()) {
stop();
start();
}
}
}
@Override
void setFlash(@Flash int flash) {
synchronized (mCameraLock) {
if (mCameraParameters != null) {
List<String> flashes = mCameraParameters.getSupportedFlashModes();
String internalFlash = new ConstantMapper.Flash(flash).map();
if (flashes != null && flashes.contains(internalFlash)) {
mCameraParameters.setFlashMode(internalFlash);
mFlash = flash;
} else {
String currentFlash = new ConstantMapper.Flash(mFlash).map();
if (flashes == null || !flashes.contains(currentFlash)) {
mCameraParameters.setFlashMode(Camera.Parameters.FLASH_MODE_OFF);
mFlash = FLASH_OFF;
}
}
mCamera.setParameters(mCameraParameters);
} else {
mFlash = flash;
}
}
}
@Override
void setFocus(@Focus int focus) {
synchronized (mCameraLock) {
this.mFocus = focus;
switch (focus) {
case FOCUS_CONTINUOUS:
if (mCameraParameters != null) {
final List<String> modes = mCameraParameters.getSupportedFocusModes();
if (modes.contains(Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE)) {
mCameraParameters.setFocusMode(Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE);
} else {
setFocus(FOCUS_OFF);
}
}
break;
case FOCUS_TAP:
if (mCameraParameters != null) {
final List<String> modes = mCameraParameters.getSupportedFocusModes();
if (modes.contains(Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE)) {
mCameraParameters.setFocusMode(Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE);
}
}
break;
case FOCUS_OFF:
if (mCameraParameters != null) {
final List<String> modes = mCameraParameters.getSupportedFocusModes();
if (modes.contains(Camera.Parameters.FOCUS_MODE_FIXED)) {
mCameraParameters.setFocusMode(Camera.Parameters.FOCUS_MODE_FIXED);
} else if (modes.contains(Camera.Parameters.FOCUS_MODE_INFINITY)) {
mCameraParameters.setFocusMode(Camera.Parameters.FOCUS_MODE_INFINITY);
} else {
mCameraParameters.setFocusMode(Camera.Parameters.FOCUS_MODE_AUTO);
}
}
break;
}
}
}
@Override
void setMethod(@CaptureMethod int method) {
this.mMethod = method;
}
@Override
void setTextDetector(Detector<TextBlock> detector) {
this.mTextDetector = detector;
}
@Override
void setVideoQuality(int videoQuality) {
this.mVideoQuality = videoQuality;
}
@Override
void setVideoBitRate(int videoBitRate) {
this.mVideoBitRate = videoBitRate;
}
@Override
void setZoom(float zoomFactor) {
synchronized (mCameraLock) {
this.mZoom = zoomFactor;
if (zoomFactor <= 1) {
mZoom = 1;
} else {
mZoom= zoomFactor;
}
if (mCameraParameters != null && mCameraParameters.isZoomSupported()) {
int zoomPercent = (int) (mZoom * 100);
mCameraParameters.setZoom(getZoomForPercent(zoomPercent));
mCamera.setParameters(mCameraParameters);
float maxZoom = mCameraParameters.getZoomRatios().get(mCameraParameters.getZoomRatios().size() - 1) / 100f;
if (mZoom > maxZoom) mZoom = maxZoom;
}
}
}
@Override
void modifyZoom(float modifier) {
synchronized (mCameraLock) {
setZoom(this.mZoom * modifier);
}
}
private int getZoomForPercent(int zoomPercent) {
List<Integer> zoomRatios = mCameraParameters.getZoomRatios();
int lowerIndex = -1;
int upperIndex = -1;
for (int i = 0; i < zoomRatios.size(); i++) {
if (zoomRatios.get(i) < zoomPercent) {
lowerIndex = i;
} else if (zoomRatios.get(i) > zoomPercent) {
upperIndex = i;
break;
}
}
if (lowerIndex < 0) {
return 0;
}
if (lowerIndex + 1 == upperIndex) {
return lowerIndex;
}
if (upperIndex >= 0) {
return upperIndex;
}
return zoomRatios.size() - 1;
}
@Override
void setFocusArea(float x, float y) {
synchronized (mCameraLock) {
if (mCamera != null) {
Camera.Parameters parameters = getCameraParameters();
if (parameters == null) return;
String focusMode = parameters.getFocusMode();
Rect rect = calculateFocusArea(x, y);
List<Camera.Area> meteringAreas = new ArrayList<>();
meteringAreas.add(new Camera.Area(rect, getFocusMeteringAreaWeight()));
if (parameters.getMaxNumFocusAreas() != 0 && focusMode != null &&
(focusMode.equals(Camera.Parameters.FOCUS_MODE_AUTO) ||
focusMode.equals(Camera.Parameters.FOCUS_MODE_MACRO) ||
focusMode.equals(Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE) ||
focusMode.equals(Camera.Parameters.FOCUS_MODE_CONTINUOUS_VIDEO))
) {
parameters.setFocusMode(Camera.Parameters.FOCUS_MODE_AUTO);
parameters.setFocusAreas(meteringAreas);
if (parameters.getMaxNumMeteringAreas() > 0) {
parameters.setMeteringAreas(meteringAreas);
}
if (!parameters.getSupportedFocusModes().contains(Camera.Parameters.FOCUS_MODE_AUTO)) {
return; //cannot autoFocus
}
mCamera.setParameters(parameters);
mCamera.autoFocus(new Camera.AutoFocusCallback() {
@Override
public void onAutoFocus(boolean success, Camera camera) {
resetFocus(success, camera);
}
});
} else if (parameters.getMaxNumMeteringAreas() > 0) {
if (!parameters.getSupportedFocusModes().contains(Camera.Parameters.FOCUS_MODE_AUTO)) {
return; //cannot autoFocus
}
parameters.setFocusMode(Camera.Parameters.FOCUS_MODE_AUTO);
parameters.setFocusAreas(meteringAreas);
parameters.setMeteringAreas(meteringAreas);
mCamera.setParameters(parameters);
mCamera.autoFocus(new Camera.AutoFocusCallback() {
@Override
public void onAutoFocus(boolean success, Camera camera) {
resetFocus(success, camera);
}
});
} else {
mCamera.autoFocus(new Camera.AutoFocusCallback() {
@Override
public void onAutoFocus(boolean success, Camera camera) {
if (mAutofocusCallback != null) {
mAutofocusCallback.onAutoFocus(success, camera);
}
}
});
}
}
}
}
@Override
void setLockVideoAspectRatio(boolean lockVideoAspectRatio) {
this.mLockVideoAspectRatio = lockVideoAspectRatio;
}
@Override
void captureImage(final ImageCapturedCallback callback) {
switch (mMethod) {
case METHOD_STANDARD:
synchronized (mCameraLock) {
// Null check required for camera here as is briefly null when View is detached
if (!capturingImage && mCamera != null) {
// Set boolean to wait for image callback
capturingImage = true;
// Set the captureRotation right before taking a picture so it's accurate
int captureRotation = calculateCaptureRotation();
mCameraParameters.setRotation(captureRotation);
mCamera.setParameters(mCameraParameters);
mCamera.takePicture(null, null, null,
new Camera.PictureCallback() {
@Override
public void onPictureTaken(byte[] data, Camera camera) {
callback.imageCaptured(data);
// Reset capturing state to allow photos to be taken
capturingImage = false;
synchronized (mCameraLock) {
if (isCameraOpened()) {
try {
stop();
start();
} catch (Exception e) {
notifyErrorListener(e);
}
}
}
}
});
} else {
Log.w(TAG, "Unable, waiting for picture to be taken");
}
break;
}
case METHOD_STILL:
synchronized (mCameraLock) {
mCamera.setOneShotPreviewCallback(new Camera.PreviewCallback() {
@Override
public void onPreviewFrame(byte[] data, Camera camera) {
Camera.Parameters parameters = camera.getParameters();
int width = parameters.getPreviewSize().width;
int height = parameters.getPreviewSize().height;
int rotation = calculateCaptureRotation();
YuvOperator yuvOperator = new YuvOperator(data, width, height);
yuvOperator.rotate(rotation);
data = yuvOperator.getYuvData();
int yuvOutputWidth = width;
int yuvOutputHeight = height;
if (rotation == 90 || rotation == 270) {
yuvOutputWidth = height;
yuvOutputHeight = width;
}
YuvImage yuvImage = new YuvImage(data, parameters.getPreviewFormat(), yuvOutputWidth, yuvOutputHeight, null);
ByteArrayOutputStream out = new ByteArrayOutputStream();
yuvImage.compressToJpeg(new Rect(0, 0, yuvImage.getWidth(), yuvImage.getHeight()), 100, out);
callback.imageCaptured(out.toByteArray());
}
});
break;
}
}
}
@Override
void captureVideo(File videoFile, int maxDuration, VideoCapturedCallback callback) {
synchronized (mCameraLock) {
try {
if (prepareMediaRecorder(videoFile, maxDuration)) {
mMediaRecorder.start();
mRecording = true;
this.mVideoCallback = callback;
} else {
releaseMediaRecorder();
}
} catch (IOException e) {
releaseMediaRecorder();
} catch (RuntimeException e) {
releaseMediaRecorder();
}
}
}
@Override
void stopVideo() {
synchronized (mCameraLock) {
if (mRecording) {
try {
mMediaRecorder.stop();
if (this.mVideoCallback != null) {
mVideoCallback.videoCaptured(mMediaRecorderOutputFile);
mVideoCallback = null;
}
} catch (RuntimeException e) {
mMediaRecorderOutputFile.delete();
}
releaseMediaRecorder();
mRecording = false;
}
stop();
start();
}
}
@Override
Size getCaptureResolution() {
if (mCaptureSize == null && mCameraParameters != null) {
TreeSet<Size> sizes = new TreeSet<>();
for (Camera.Size size : mCameraParameters.getSupportedPictureSizes()) {
sizes.add(new Size(size.width, size.height));
}
TreeSet<AspectRatio> aspectRatios = findCommonAspectRatios(
mCameraParameters.getSupportedPreviewSizes(),
mCameraParameters.getSupportedPictureSizes()
);
AspectRatio targetRatio = aspectRatios.size() > 0 ? aspectRatios.last() : null;
Iterator<Size> descendingSizes = sizes.descendingIterator();
Size size;
while (descendingSizes.hasNext() && mCaptureSize == null) {
size = descendingSizes.next();
if (targetRatio == null || targetRatio.matches(size)) {
mCaptureSize = size;
break;
}
}
}
return mCaptureSize;
}
@Override
Size getVideoResolution() {
if (mVideoSize == null && mCameraParameters != null) {
if (mCameraParameters.getSupportedVideoSizes() == null) {
mVideoSize = getCaptureResolution();
return mVideoSize;
}
TreeSet<Size> sizes = new TreeSet<>();
for (Camera.Size size : mCameraParameters.getSupportedVideoSizes()) {
sizes.add(new Size(size.width, size.height));
}
TreeSet<AspectRatio> aspectRatios = findCommonAspectRatios(
mCameraParameters.getSupportedPreviewSizes(),
mCameraParameters.getSupportedVideoSizes()
);
AspectRatio targetRatio = aspectRatios.size() > 0 ? aspectRatios.last() : null;
Iterator<Size> descendingSizes = sizes.descendingIterator();
Size size;
while (descendingSizes.hasNext() && mVideoSize == null) {
size = descendingSizes.next();
if (targetRatio == null || targetRatio.matches(size)) {
mVideoSize = size;
break;
}
}
}
return mVideoSize;
}
@Override
Size getPreviewResolution() {
Size cameraPreviewResolution = getCameraPreviewResolution();
boolean invertPreviewSizes = (mCameraInfo.orientation + mDeviceOrientation) % 180 == 90;
if (invertPreviewSizes) {
return new Size(cameraPreviewResolution.getHeight(), cameraPreviewResolution.getWidth());
}
return cameraPreviewResolution;
}
Size getCameraPreviewResolution() {
if (mPreviewSize == null && mCameraParameters != null) {
TreeSet<Size> sizes = new TreeSet<>();
for (Camera.Size size : mCameraParameters.getSupportedPreviewSizes()) {
sizes.add(new Size(size.width, size.height));
}
TreeSet<AspectRatio> aspectRatios = findCommonAspectRatios(
mCameraParameters.getSupportedPreviewSizes(),
mCameraParameters.getSupportedPictureSizes()
);
AspectRatio targetRatio = null;
if (mLockVideoAspectRatio) {
TreeSet<AspectRatio> videoAspectRatios = findCommonAspectRatios(
mCameraParameters.getSupportedPreviewSizes(),
mCameraParameters.getSupportedPictureSizes()
);
Iterator<AspectRatio> descendingIterator = aspectRatios.descendingIterator();
while (targetRatio == null && descendingIterator.hasNext()) {
AspectRatio ratio = descendingIterator.next();
if (videoAspectRatios.contains(ratio)) {
targetRatio = ratio;
}
}
}
if (targetRatio == null) {
targetRatio = aspectRatios.size() > 0 ? aspectRatios.last() : null;
}
Iterator<Size> descendingSizes = sizes.descendingIterator();
Size size;
while (descendingSizes.hasNext() && mPreviewSize == null) {
size = descendingSizes.next();
if (targetRatio == null || targetRatio.matches(size)) {
mPreviewSize = size;
break;
}
}
}
return mPreviewSize;
}
@Override
boolean isCameraOpened() {
return mCamera != null;
}
@Override
boolean frontCameraOnly() {
Camera.CameraInfo cameraInfo = new Camera.CameraInfo();
Camera.getCameraInfo(0, cameraInfo);
boolean isFrontCameraOnly = (Camera.getNumberOfCameras() == 1 && cameraInfo.facing == Camera.CameraInfo.CAMERA_FACING_FRONT);
return isFrontCameraOnly;
}
@Nullable
@Override
CameraProperties getCameraProperties() {
return mCameraProperties;
}
// Internal:
private void openCamera() {
synchronized (mCameraLock) {
if (mCamera != null) {
releaseCamera();
}
mCamera = Camera.open(mCameraId);
mCameraParameters = mCamera.getParameters();
collectCameraProperties();
adjustCameraParameters();
if (Build.VERSION.SDK_INT >= 16) {
mCamera.setAutoFocusMoveCallback(new Camera.AutoFocusMoveCallback() {
@Override
public void onAutoFocusMoving(boolean b, Camera camera) {
CameraKitEvent event = new CameraKitEvent(CameraKitEvent.TYPE_FOCUS_MOVED);
event.getData().putBoolean("started", b);
mEventDispatcher.dispatch(event);
}
});
}
mEventDispatcher.dispatch(new CameraKitEvent(CameraKitEvent.TYPE_CAMERA_OPEN));
if (mTextDetector != null) {
mFrameProcessor = new FrameProcessingRunnable(mTextDetector, mPreviewSize, mCamera);
mFrameProcessor.start();
}
}
}
private void setupPreview() {
synchronized (mCameraLock) {
if (mCamera != null) {
try {
mCamera.reconnect();
mCamera.setPreviewDisplay(mPreview.getSurfaceHolder());
} catch (IOException e) {
throw new RuntimeException(e);
}
}
}
}
private void releaseCamera() {
synchronized (mCameraLock) {
if (mCamera != null) {
mCamera.lock();
mCamera.release();
mCamera = null;
mCameraParameters = null;
mPreviewSize = null;
mCaptureSize = null;
mVideoSize = null;
mEventDispatcher.dispatch(new CameraKitEvent(CameraKitEvent.TYPE_CAMERA_CLOSE));
if (mFrameProcessor != null) {
mFrameProcessor.release();
}
}
}
}
private int calculatePreviewRotation() {
if (mCameraInfo.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
return (360 - ((mCameraInfo.orientation + mDisplayOrientation) % 360)) % 360;
} else {
return (mCameraInfo.orientation - mDisplayOrientation + 360) % 360;
}
}
private int calculateCaptureRotation() {
int captureRotation = 0;
if (mCameraInfo.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
captureRotation = (mCameraInfo.orientation + mDisplayOrientation) % 360;
} else { // back-facing camera
captureRotation = (mCameraInfo.orientation - mDisplayOrientation + 360) % 360;
}
// Accommodate for any extra device rotation relative to fixed screen orientations
// (e.g. activity fixed in portrait, but user took photo/video in landscape)
if (mCameraInfo.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
captureRotation = ((captureRotation - (mDisplayOrientation - mDeviceOrientation)) + 360) % 360;
} else { // back-facing camera
captureRotation = (captureRotation + (mDisplayOrientation - mDeviceOrientation) + 360) % 360;
}
return captureRotation;
}
private void notifyErrorListener(@NonNull final String details) {
CameraKitError error = new CameraKitError();
error.setMessage(details);
mEventDispatcher.dispatch(error);
}
private void notifyErrorListener(@NonNull final Exception e) {
CameraKitError error = new CameraKitError(e);
mEventDispatcher.dispatch(error);
}
private Camera.Parameters getCameraParameters() {
if (mCamera != null) {
try {
return mCamera.getParameters();
} catch (Exception e) {
return null;
}
}
return null;
}
private void adjustCameraParameters() {
synchronized (mCameraLock) {
if (mShowingPreview) {
mCamera.stopPreview();
}
adjustCameraParameters(0);
if (mShowingPreview) {
mCamera.startPreview();
}
}
}
private void adjustCameraParameters(int currentTry) {
boolean haveToReadjust = false;
Camera.Parameters resolutionLess = mCamera.getParameters();
if (getPreviewResolution() != null) {
mPreview.setPreviewParameters(
getPreviewResolution().getWidth(),
getPreviewResolution().getHeight(),
mCameraParameters.getPreviewFormat()
);
mCameraParameters.setPreviewSize(
getCameraPreviewResolution().getWidth(),
getCameraPreviewResolution().getHeight()
);
try {
mCamera.setParameters(mCameraParameters);
resolutionLess = mCameraParameters;
} catch (Exception e) {
notifyErrorListener(e);
// Some phones can't set parameters that camerakit has chosen, so fallback to defaults
mCameraParameters = resolutionLess;
}
} else {
haveToReadjust = true;
}
if (getCaptureResolution() != null) {
mCameraParameters.setPictureSize(
getCaptureResolution().getWidth(),
getCaptureResolution().getHeight()
);
try {
mCamera.setParameters(mCameraParameters);
resolutionLess = mCameraParameters;
} catch (Exception e) {
notifyErrorListener(e);
//Some phones can't set parameters that camerakit has chosen, so fallback to defaults
mCameraParameters = resolutionLess;
}
} else {
haveToReadjust = true;
}
int rotation = calculateCaptureRotation();
mCameraParameters.setRotation(rotation);
setFocus(mFocus);
try {
setFlash(mFlash);
} catch (Exception e) {
notifyErrorListener(e);
}
if (mCameraParameters.isZoomSupported()) {
setZoom(mZoom);
}
mCamera.setParameters(mCameraParameters);
if (haveToReadjust && currentTry < 100) {
try {
Thread.sleep(1);
} catch (InterruptedException e) {
e.printStackTrace();
}
notifyErrorListener(String.format("retryAdjustParam Failed, attempt #: %d", currentTry));
adjustCameraParameters(currentTry + 1);
}
}
private void collectCameraProperties() {
mCameraProperties = new CameraProperties(mCameraParameters.getVerticalViewAngle(),
mCameraParameters.getHorizontalViewAngle());
}
private TreeSet<AspectRatio> findCommonAspectRatios(List<Camera.Size> previewSizes, List<Camera.Size> pictureSizes) {
Set<AspectRatio> previewAspectRatios = new HashSet<>();
for (Camera.Size size : previewSizes) {
AspectRatio deviceRatio = AspectRatio.of(CameraKit.Internal.screenHeight, CameraKit.Internal.screenWidth);
AspectRatio previewRatio = AspectRatio.of(size.width, size.height);
if (deviceRatio.equals(previewRatio)) {
previewAspectRatios.add(previewRatio);
}
}
Set<AspectRatio> captureAspectRatios = new HashSet<>();
for (Camera.Size size : pictureSizes) {
captureAspectRatios.add(AspectRatio.of(size.width, size.height));
}
TreeSet<AspectRatio> output = new TreeSet<>();
if (previewAspectRatios.size() == 0) {
// if no common aspect ratios
Camera.Size maxSize = previewSizes.get(0);
AspectRatio maxPreviewAspectRatio = AspectRatio.of(maxSize.width, maxSize.height);
for (AspectRatio aspectRatio : captureAspectRatios) {
if (aspectRatio.equals(maxPreviewAspectRatio)) {
output.add(aspectRatio);
}
}
} else {
// if common aspect ratios exist
for (AspectRatio aspectRatio : previewAspectRatios) {
if (captureAspectRatios.contains(aspectRatio)) {
output.add(aspectRatio);
}
}
}
return output;
}
private boolean prepareMediaRecorder(File videoFile, int maxDuration) throws IOException {
synchronized (mCameraLock) {
mCamera.unlock();
mMediaRecorder = new MediaRecorder();
mMediaRecorder.setCamera(mCamera);
//mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);
mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
CamcorderProfile profile = getCamcorderProfile(mVideoQuality);
mMediaRecorder.setProfile(profile);
if (videoFile == null) videoFile = getVideoFile();
if (videoFile == null) {
return false;
}
mMediaRecorderOutputFile = videoFile;
mMediaRecorder.setOutputFile(videoFile.getPath());
mMediaRecorder.setPreviewDisplay(mPreview.getSurface());
mMediaRecorder.setOrientationHint(calculateCaptureRotation());
if (maxDuration > 0) {
mMediaRecorder.setMaxDuration(maxDuration);
mMediaRecorder.setOnInfoListener(new MediaRecorder.OnInfoListener() {
@Override
public void onInfo(MediaRecorder mediaRecorder, int what, int extra) {
if (what == MediaRecorder.MEDIA_RECORDER_INFO_MAX_DURATION_REACHED) {
stopVideo();
}
}
});
}
try {
mMediaRecorder.prepare();
} catch (IllegalStateException e) {
releaseMediaRecorder();
return false;
} catch (IOException e) {
releaseMediaRecorder();
return false;
}
return true;
}
}
private void releaseMediaRecorder() {
synchronized (mCameraLock) {
if (mMediaRecorder != null) {
mMediaRecorder.reset();
mMediaRecorder.release();
mMediaRecorder = null;
mCamera.lock();
}
}
}
private File getVideoFile() {
if (!Environment.getExternalStorageState().equalsIgnoreCase(Environment.MEDIA_MOUNTED)) {
return null;
}
File mediaStorageDir = new File(Environment.getExternalStorageDirectory(), "Camera");
if (!mediaStorageDir.exists()) {
if (!mediaStorageDir.mkdirs()) {
return null;
}
}
return new File(mediaStorageDir.getPath() + File.separator + "video.mp4");
}
private CamcorderProfile getCamcorderProfile(@VideoQuality int videoQuality) {
CamcorderProfile camcorderProfile = null;
switch (videoQuality) {
case CameraKit.Constants.VIDEO_QUALITY_QVGA:
if (CamcorderProfile.hasProfile(mCameraId, CamcorderProfile.QUALITY_QVGA)) {
camcorderProfile = CamcorderProfile.get(mCameraId, CamcorderProfile.QUALITY_QVGA);
} else {
camcorderProfile = getCamcorderProfile(CameraKit.Constants.VIDEO_QUALITY_LOWEST);
}
break;
case CameraKit.Constants.VIDEO_QUALITY_480P:
if (CamcorderProfile.hasProfile(mCameraId, CamcorderProfile.QUALITY_480P)) {
camcorderProfile = CamcorderProfile.get(mCameraId, CamcorderProfile.QUALITY_480P);