Dylan McIntyre
8 years ago
parent
b448e09944
commit
52ca32f130
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package com.flurgle.camerakit; |
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import android.hardware.Camera; |
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import android.media.CamcorderProfile; |
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import android.media.MediaRecorder; |
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import android.os.Build; |
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import android.support.v4.util.SparseArrayCompat; |
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import android.view.SurfaceHolder; |
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import com.flurgle.camerakit.utils.Size; |
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import java.io.File; |
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import java.io.IOException; |
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import java.util.List; |
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import java.util.SortedSet; |
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import java.util.TreeSet; |
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public class Camera1 extends CameraViewImpl { |
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private static final int INVALID_CAMERA_ID = -1; |
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private static final SparseArrayCompat<String> FLASH_MODES = new SparseArrayCompat<>(); |
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static { |
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FLASH_MODES.put(CameraKit.Constants.FLASH_OFF, Camera.Parameters.FLASH_MODE_OFF); |
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FLASH_MODES.put(CameraKit.Constants.FLASH_ON, Camera.Parameters.FLASH_MODE_ON); |
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FLASH_MODES.put(CameraKit.Constants.FLASH_AUTO, Camera.Parameters.FLASH_MODE_AUTO); |
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} |
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private int mCameraId; |
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Camera mCamera; |
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private Camera.Parameters mCameraParameters; |
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private final Camera.CameraInfo mCameraInfo = new Camera.CameraInfo(); |
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private boolean mShowingPreview; |
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private boolean mAutoFocus; |
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private int mFacing; |
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private int mFlash; |
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private int mDisplayOrientation; |
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private SortedSet<Size> mPreviewSizes; |
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private SortedSet<Size> mCaptureSizes; |
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private MediaRecorder mMediaRecorder; |
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Camera1(CameraListener callback, PreviewImpl preview) { |
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super(callback, preview); |
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preview.setCallback(new PreviewImpl.Callback() { |
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@Override |
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public void onSurfaceChanged() { |
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if (mCamera != null) { |
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setUpPreview(); |
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adjustCameraParameters(); |
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} |
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} |
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}); |
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mPreviewSizes = new TreeSet<>(); |
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mCaptureSizes = new TreeSet<>(); |
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} |
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@Override |
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void start() { |
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chooseCamera(); |
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openCamera(); |
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if (mPreview.isReady()) { |
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setUpPreview(); |
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} |
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mShowingPreview = true; |
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mCamera.startPreview(); |
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} |
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@Override |
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void stop() { |
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if (mCamera != null) { |
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mCamera.stopPreview(); |
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} |
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mShowingPreview = false; |
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releaseCamera(); |
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} |
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@Override |
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boolean isCameraOpened() { |
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return mCamera != null; |
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} |
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@Override |
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void setFacing(int facing) { |
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if (mFacing == facing) { |
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return; |
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} |
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mFacing = facing; |
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if (isCameraOpened()) { |
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stop(); |
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start(); |
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} |
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} |
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@Override |
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int getFacing() { |
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return mFacing; |
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} |
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@Override |
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void setFlash(int flash) { |
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if (flash == mFlash) { |
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return; |
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} |
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if (setFlashInternal(flash)) { |
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mCamera.setParameters(mCameraParameters); |
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} |
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} |
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@Override |
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int getFlash() { |
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return mFlash; |
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} |
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@Override |
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boolean getAutoFocus() { |
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if (!isCameraOpened()) { |
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return mAutoFocus; |
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} |
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String focusMode = mCameraParameters.getFocusMode(); |
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return focusMode != null && focusMode.contains("continuous"); |
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} |
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@Override |
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void capturePicture() { |
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if (!isCameraOpened()) { |
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throw new IllegalStateException("Camera is not ready. Call start() before takePicture()."); |
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} |
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if (getAutoFocus()) { |
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mCamera.cancelAutoFocus(); |
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mCamera.autoFocus(new Camera.AutoFocusCallback() { |
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@Override |
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public void onAutoFocus(boolean success, Camera camera) { |
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takePictureInternal(); |
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} |
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}); |
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} else { |
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takePictureInternal(); |
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} |
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} |
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void takePictureInternal() { |
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mCamera.takePicture(null, null, null, new Camera.PictureCallback() { |
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@Override |
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public void onPictureTaken(byte[] data, Camera camera) { |
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getCameraListener().onPictureTaken(data); |
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camera.startPreview(); |
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} |
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}); |
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} |
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@Override |
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void captureStill() { |
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} |
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@Override |
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void startVideo() { |
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try { |
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prepareMediaRecorder(); |
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} catch (IOException e) { |
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if (mMediaRecorder != null) { |
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mMediaRecorder.release(); |
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} |
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return; |
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} |
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} |
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void prepareMediaRecorder() throws IOException { |
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mCamera.unlock(); |
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mMediaRecorder = new MediaRecorder(); |
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mMediaRecorder.setCamera(mCamera); |
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mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER); |
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mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA); |
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mMediaRecorder.setProfile(CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH)); |
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mMediaRecorder.setOutputFile(new File(getView().getContext().getExternalFilesDir(null), "video.mp4").getAbsolutePath()); |
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mMediaRecorder.prepare(); |
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mMediaRecorder.start(); |
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} |
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@Override |
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void endVideo() { |
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if (mMediaRecorder != null) { |
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mMediaRecorder.stop(); |
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} |
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getCameraListener().onVideoTaken(new File(getView().getContext().getExternalFilesDir(null), "video.mp4")); |
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} |
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@Override |
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void setDisplayOrientation(int displayOrientation) { |
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if (mDisplayOrientation == displayOrientation) { |
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return; |
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} |
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mDisplayOrientation = displayOrientation; |
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if (isCameraOpened()) { |
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int cameraRotation = calcCameraRotation(displayOrientation); |
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mCameraParameters.setRotation(cameraRotation); |
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mCamera.setParameters(mCameraParameters); |
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final boolean needsToStopPreview = mShowingPreview && Build.VERSION.SDK_INT < 14; |
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if (needsToStopPreview) { |
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mCamera.stopPreview(); |
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} |
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mCamera.setDisplayOrientation(cameraRotation); |
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if (needsToStopPreview) { |
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mCamera.startPreview(); |
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} |
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} |
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} |
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private int calcCameraRotation(int rotation) { |
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if (mCameraInfo.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) { |
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return (360 - (mCameraInfo.orientation + rotation) % 360) % 360; |
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} else { // back-facing
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return (mCameraInfo.orientation - rotation + 360) % 360; |
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} |
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} |
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private void setUpPreview() { |
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try { |
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if (mPreview.getOutputClass() == SurfaceHolder.class) { |
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final boolean needsToStopPreview = mShowingPreview && Build.VERSION.SDK_INT < 14; |
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if (needsToStopPreview) { |
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mCamera.stopPreview(); |
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} |
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mCamera.setPreviewDisplay(mPreview.getSurfaceHolder()); |
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if (needsToStopPreview) { |
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mCamera.startPreview(); |
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} |
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} else { |
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mCamera.setPreviewTexture(mPreview.getSurfaceTexture()); |
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} |
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} catch (IOException e) { |
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throw new RuntimeException(e); |
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} |
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} |
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private void adjustCameraParameters() { |
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SortedSet<Size> sizes = mPreviewSizes; |
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Size previewSize = chooseOptimalSize(sizes); |
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final Camera.Size currentSize = mCameraParameters.getPictureSize(); |
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if (currentSize.width != previewSize.getWidth() || currentSize.height != previewSize.getHeight()) { |
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final Size pictureSize = mCaptureSizes.last(); |
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if (mShowingPreview) { |
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mCamera.stopPreview(); |
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} |
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mCameraParameters.setPreviewSize(previewSize.getWidth(), previewSize.getHeight()); |
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mPreview.setTruePreviewSize(previewSize.getWidth(), previewSize.getHeight()); |
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mCameraParameters.setPictureSize(pictureSize.getWidth(), pictureSize.getHeight()); |
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mCameraParameters.setRotation(calcCameraRotation(mDisplayOrientation)); |
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setAutoFocusInternal(mAutoFocus); |
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setFlashInternal(mFlash); |
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mCamera.setParameters(mCameraParameters); |
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if (mShowingPreview) { |
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mCamera.startPreview(); |
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} |
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} |
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} |
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private Size chooseOptimalSize(SortedSet<Size> sizes) { |
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if (!mPreview.isReady()) { // Not yet laid out
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return sizes.last(); // Return the smallest size
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} |
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int desiredWidth; |
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int desiredHeight; |
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final int surfaceWidth = mPreview.getWidth(); |
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final int surfaceHeight = mPreview.getHeight(); |
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if (mDisplayOrientation == 90 || mDisplayOrientation == 270) { |
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desiredWidth = surfaceHeight; |
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desiredHeight = surfaceWidth; |
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} else { |
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desiredWidth = surfaceWidth; |
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desiredHeight = surfaceHeight; |
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} |
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Size result = null; |
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for (Size size : sizes) { // Iterate from small to large
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if (desiredWidth <= size.getWidth() && desiredHeight <= size.getHeight()) { |
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return size; |
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} |
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result = size; |
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} |
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return result; |
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} |
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private void chooseCamera() { |
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for (int i = 0, count = Camera.getNumberOfCameras(); i < count; i++) { |
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Camera.getCameraInfo(i, mCameraInfo); |
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if (mCameraInfo.facing == mFacing) { |
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mCameraId = i; |
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return; |
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} |
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} |
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mCameraId = INVALID_CAMERA_ID; |
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} |
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private void openCamera() { |
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if (mCamera != null) { |
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releaseCamera(); |
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} |
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mCamera = Camera.open(mCameraId); |
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mCameraParameters = mCamera.getParameters(); |
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// Supported preview sizes
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mPreviewSizes.clear(); |
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for (Camera.Size size : mCameraParameters.getSupportedPreviewSizes()) { |
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mPreviewSizes.add(new Size(size.width, size.height)); |
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} |
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// Supported picture sizes;
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mCaptureSizes.clear(); |
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for (Camera.Size size : mCameraParameters.getSupportedPictureSizes()) { |
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mCaptureSizes.add(new Size(size.width, size.height)); |
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} |
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adjustCameraParameters(); |
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mCamera.setDisplayOrientation(calcCameraRotation(mDisplayOrientation)); |
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getCameraListener().onCameraOpened(); |
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} |
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private void releaseCamera() { |
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if (mCamera != null) { |
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mCamera.release(); |
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mCamera = null; |
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getCameraListener().onCameraClosed(); |
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} |
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} |
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private boolean setAutoFocusInternal(boolean autoFocus) { |
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mAutoFocus = autoFocus; |
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if (isCameraOpened()) { |
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final List<String> modes = mCameraParameters.getSupportedFocusModes(); |
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if (autoFocus && modes.contains(Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE)) { |
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mCameraParameters.setFocusMode(Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE); |
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} else if (modes.contains(Camera.Parameters.FOCUS_MODE_FIXED)) { |
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mCameraParameters.setFocusMode(Camera.Parameters.FOCUS_MODE_FIXED); |
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} else if (modes.contains(Camera.Parameters.FOCUS_MODE_INFINITY)) { |
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mCameraParameters.setFocusMode(Camera.Parameters.FOCUS_MODE_INFINITY); |
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} else { |
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mCameraParameters.setFocusMode(modes.get(0)); |
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} |
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return true; |
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} else { |
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return false; |
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} |
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} |
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private boolean setFlashInternal(int flash) { |
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if (isCameraOpened()) { |
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List<String> modes = mCameraParameters.getSupportedFlashModes(); |
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String mode = FLASH_MODES.get(flash); |
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if (modes != null && modes.contains(mode)) { |
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mCameraParameters.setFlashMode(mode); |
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mFlash = flash; |
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return true; |
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} |
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String currentMode = FLASH_MODES.get(mFlash); |
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if (modes == null || !modes.contains(currentMode)) { |
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mCameraParameters.setFlashMode(Camera.Parameters.FLASH_MODE_OFF); |
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mFlash = CameraKit.Constants.FLASH_OFF; |
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return true; |
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} |
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return false; |
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} else { |
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mFlash = flash; |
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return false; |
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} |
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} |
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} |
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@ -0,0 +1,82 @@ |
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package com.flurgle.camerakit.encoding; |
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import java.util.concurrent.ArrayBlockingQueue; |
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import java.util.concurrent.BlockingQueue; |
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public abstract class Encoder { |
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protected BlockingQueue<Frame> queue = new ArrayBlockingQueue<Frame>(100); |
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int width; |
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int height; |
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int cameraFacing; |
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long startMS = 0; |
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byte[] rotatedFrameData = null; |
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byte[] planeManagedData = null; |
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boolean encoderStarted = false; |
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public Encoder(int cameraFacing, int width, int height) { |
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this.cameraFacing = cameraFacing; |
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this.height = height; |
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this.width = width; |
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} |
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abstract public void encode(byte[] rawData); |
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public abstract void stopEncoder(); |
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public boolean hasEncoderStarted() { |
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return encoderStarted; |
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} |
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public void setStartMS(long ms) { |
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this.startMS = ms; |
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} |
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public static void YV12toYUV420PackedSemiPlanar(final byte[] input, byte[] out, final int width, final int height) { |
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final int frameSize = width * height; |
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final int qFrameSize = frameSize / 4; |
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for (int i = 0; i < input.length; i++) { |
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if (i < frameSize) |
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out[i] = input[i]; |
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if (i < (qFrameSize)) { |
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out[frameSize + i * 2] = input[frameSize + i + qFrameSize]; // Cb (U)
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out[frameSize + i * 2 + 1] = input[frameSize + i]; // Cr (V)
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} |
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} |
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} |
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static byte[] NV21toYUV420p(byte[] data, int width, int height) { |
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int len_target = (width * height * 3) / 2; |
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byte[] buf_target = new byte[len_target]; |
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System.arraycopy(data, 0, buf_target, 0, width * height); |
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for (int i = 0; i < (width * height / 4); i++) { |
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buf_target[(width * height) + i] = data[(width * height) + 2 * i + 1]; |
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buf_target[(width * height) + (width * height / 4) + i] = data[(width * height) + 2 * i]; |
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} |
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return buf_target; |
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} |
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public void rotateYUV420Degree90(byte[] data, byte[] output, int imageWidth, int imageHeight) { |
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int i = 0; |
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for (int x = 0; x < imageWidth; x++) { |
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for (int y = imageHeight - 1; y >= 0; y--) { |
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output[i] = data[y * imageWidth + x]; |
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i++; |
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} |
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} |
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i = imageWidth * imageHeight * 3 / 2 - 1; |
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for (int x = imageWidth - 1; x > 0; x = x - 2) { |
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for (int y = 0; y < imageHeight / 2; y++) { |
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output[i] = data[(imageWidth * imageHeight) + (y * imageWidth) + x]; |
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i--; |
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output[i] = data[(imageWidth * imageHeight) + (y * imageWidth) + (x - 1)]; |
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i--; |
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} |
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} |
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} |
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} |
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@ -0,0 +1,12 @@ |
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package com.flurgle.camerakit.encoding; |
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public class Frame { |
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public int id; |
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public byte[] frameData; |
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public Frame(int id) { |
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this.id = id; |
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} |
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} |
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@ -0,0 +1,157 @@ |
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package com.flurgle.camerakit.encoding; |
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import android.content.Context; |
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import android.graphics.ImageFormat; |
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import android.media.MediaCodec; |
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import android.media.MediaCodecInfo; |
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import android.media.MediaFormat; |
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import android.util.Log; |
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import java.io.File; |
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import java.io.FileNotFoundException; |
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import java.io.FileOutputStream; |
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import java.io.IOException; |
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import java.nio.ByteBuffer; |
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import java.util.concurrent.ArrayBlockingQueue; |
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public class VideoEncoder extends Encoder { |
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File mVideoFile; |
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FileOutputStream mFOS; |
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MediaCodec mMediaCodec; |
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ByteBuffer[] inputBuffers; |
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ByteBuffer[] outputBuffers; |
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MediaFormat mediaFormat = null; |
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public static int frameID = 0; |
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public VideoEncoder(Context context, int cameraFacing, int width, int height) throws IOException { |
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super(cameraFacing, width, height); |
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try { |
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mVideoFile = new File(context.getExternalFilesDir(null), "video.mp4"); |
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mFOS = new FileOutputStream(mVideoFile, false); |
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} catch (FileNotFoundException e) { |
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e.printStackTrace(); |
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} |
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queue = new ArrayBlockingQueue<>(100); |
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mMediaCodec = MediaCodec.createEncoderByType("video/avc"); |
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mediaFormat = MediaFormat.createVideoFormat("video/avc", width, height); |
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mediaFormat.setInteger(MediaFormat.KEY_BIT_RATE, 125000); |
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mediaFormat.setInteger(MediaFormat.KEY_FRAME_RATE, 15); |
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mediaFormat.setInteger(MediaFormat.KEY_I_FRAME_INTERVAL, 5); |
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mediaFormat.setInteger(MediaFormat.KEY_SAMPLE_RATE, 8000); |
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mediaFormat.setInteger(MediaFormat.KEY_CHANNEL_COUNT, 1); |
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try { |
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mediaFormat.setInteger(MediaFormat.KEY_COLOR_FORMAT, MediaCodecInfo.CodecCapabilities.COLOR_FormatYUV420SemiPlanar); |
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mMediaCodec.configure(mediaFormat, null, null, MediaCodec.CONFIGURE_FLAG_ENCODE); |
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frameID = 0; |
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rotatedFrameData = new byte[width * height * (ImageFormat.getBitsPerPixel(ImageFormat.YV12)) / 8]; |
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planeManagedData = new byte[width * height * (ImageFormat.getBitsPerPixel(ImageFormat.YV12)) / 8]; |
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encoderStarted = true; |
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mMediaCodec.start(); |
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} catch (Exception e) { |
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e.printStackTrace(); |
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} |
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} |
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public void stopEncoder() { |
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encoderStarted = false; |
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if (mMediaCodec != null) { |
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mMediaCodec.stop(); |
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mMediaCodec.release(); |
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mMediaCodec = null; |
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} |
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if (mFOS != null) { |
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try { |
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mFOS.close(); |
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} catch (IOException e) { |
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} |
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} |
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} |
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@Override |
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public void encode(byte[] rawData) { |
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inputBuffers = mMediaCodec.getInputBuffers(); |
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outputBuffers = mMediaCodec.getOutputBuffers(); |
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int inputBufferIndex = mMediaCodec.dequeueInputBuffer(0); |
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if (inputBufferIndex >= 0) { |
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ByteBuffer inputBuffer = inputBuffers[inputBufferIndex]; |
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inputBuffer.clear(); |
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int size = inputBuffer.limit(); |
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inputBuffer.put(rawData); |
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mMediaCodec.queueInputBuffer(inputBufferIndex, 0, size, (System.currentTimeMillis() - startMS) * 1000, 0); |
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} else { |
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return; |
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} |
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||||
MediaCodec.BufferInfo bufferInfo = new MediaCodec.BufferInfo(); |
||||
int outputBufferIndex = mMediaCodec.dequeueOutputBuffer(bufferInfo, 0); |
||||
do { |
||||
if (outputBufferIndex >= 0) { |
||||
Frame frame = new Frame(frameID); |
||||
ByteBuffer outBuffer = outputBuffers[outputBufferIndex]; |
||||
byte[] outData = new byte[bufferInfo.size]; |
||||
int dataLength = 0; |
||||
|
||||
outBuffer.get(outData); |
||||
|
||||
dataLength = outData.length - 2; |
||||
frame.frameData = new byte[dataLength]; |
||||
// skipping 0x00 0x80 while copying
|
||||
System.arraycopy(outData, 2, frame.frameData, 0, dataLength); |
||||
|
||||
try { |
||||
if (bufferInfo.offset != 0) { |
||||
mFOS.write(outData, bufferInfo.offset, outData.length - bufferInfo.offset); |
||||
} else { |
||||
mFOS.write(outData, 0, outData.length); |
||||
} |
||||
mFOS.flush(); |
||||
} catch (IOException e) { |
||||
Log.e("Encoding", e.toString()); |
||||
} |
||||
|
||||
try { |
||||
queue.put(frame); |
||||
} catch (InterruptedException e) { |
||||
Log.e("EncodeDecode", "interrupted while waiting"); |
||||
e.printStackTrace(); |
||||
} catch (NullPointerException e) { |
||||
Log.e("EncodeDecode", "frame is null"); |
||||
e.printStackTrace(); |
||||
} catch (IllegalArgumentException e) { |
||||
Log.e("EncodeDecode", "problem inserting in the queue"); |
||||
e.printStackTrace(); |
||||
} |
||||
Log.d("EncodeDecode", "H263 frame enqueued. queue size now: " + queue.size()); |
||||
|
||||
frameID++; |
||||
mMediaCodec.releaseOutputBuffer(outputBufferIndex, false); |
||||
outputBufferIndex = mMediaCodec.dequeueOutputBuffer(bufferInfo, 0); |
||||
|
||||
} else if (outputBufferIndex == MediaCodec.INFO_OUTPUT_BUFFERS_CHANGED) { |
||||
outputBuffers = mMediaCodec.getOutputBuffers(); |
||||
Log.e("EncodeDecode", "output buffer of encoder : info changed"); |
||||
} else if (outputBufferIndex == MediaCodec.INFO_OUTPUT_FORMAT_CHANGED) { |
||||
Log.e("EncodeDecode", "output buffer of encoder : format changed"); |
||||
} else { |
||||
Log.e("EncodeDecode", "unknown value of outputBufferIndex : " + outputBufferIndex); |
||||
} |
||||
} while (outputBufferIndex >= 0); |
||||
} |
||||
|
||||
|
||||
} |
||||
@ -1,4 +1,4 @@ |
||||
package com.flurgle.camerakit; |
||||
package com.flurgle.camerakit.utils; |
||||
|
||||
import android.os.Parcel; |
||||
import android.os.Parcelable; |
||||
@ -1,4 +1,4 @@ |
||||
package com.flurgle.camerakit; |
||||
package com.flurgle.camerakit.utils; |
||||
|
||||
import android.support.annotation.NonNull; |
||||
|
||||
Loading…
Reference in new issue