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@ -8,24 +8,24 @@ import android.location.Location; |
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import android.os.Handler; |
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import android.os.Looper; |
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import com.google.android.gms.tasks.Continuation; |
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import com.google.android.gms.tasks.OnCompleteListener; |
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import com.google.android.gms.tasks.OnFailureListener; |
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import com.google.android.gms.tasks.SuccessContinuation; |
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import com.google.android.gms.tasks.TaskCompletionSource; |
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import com.google.android.gms.tasks.OnSuccessListener; |
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import com.google.android.gms.tasks.Task; |
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import com.google.android.gms.tasks.Tasks; |
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import com.otaliastudios.cameraview.CameraException; |
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import com.otaliastudios.cameraview.CameraLogger; |
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import com.otaliastudios.cameraview.CameraOptions; |
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import com.otaliastudios.cameraview.PictureResult; |
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import com.otaliastudios.cameraview.controls.PictureFormat; |
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import com.otaliastudios.cameraview.engine.orchestrator.CameraOrchestrator; |
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import com.otaliastudios.cameraview.engine.orchestrator.CameraState; |
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import com.otaliastudios.cameraview.engine.orchestrator.CameraStateOrchestrator; |
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import com.otaliastudios.cameraview.overlay.Overlay; |
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import com.otaliastudios.cameraview.VideoResult; |
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import com.otaliastudios.cameraview.engine.offset.Angles; |
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import com.otaliastudios.cameraview.engine.offset.Reference; |
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import com.otaliastudios.cameraview.frame.Frame; |
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import com.otaliastudios.cameraview.frame.FrameManager; |
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import com.otaliastudios.cameraview.internal.utils.Op; |
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import com.otaliastudios.cameraview.internal.utils.WorkerHandler; |
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import com.otaliastudios.cameraview.picture.PictureRecorder; |
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import com.otaliastudios.cameraview.preview.CameraPreview; |
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@ -54,7 +54,6 @@ import java.util.Collection; |
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import java.util.List; |
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import java.util.concurrent.Callable; |
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import java.util.concurrent.CountDownLatch; |
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import java.util.concurrent.Executor; |
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import java.util.concurrent.TimeUnit; |
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@ -73,13 +72,8 @@ import java.util.concurrent.TimeUnit; |
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* So at the end of both step 1 and 2, the engine should check if both have |
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* been performed and trigger the steps 3 and 4. |
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* |
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* We use an abstraction for each step called {@link Step} that manages the state of |
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* each step and ensures that start and stop operations, for each step, are never called if the |
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* previous one has not ended. |
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* |
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* |
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* STATE |
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* We only expose generic {@link #start()} and {@link #stop()} calls to the outside. |
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* We only expose generic {@link #start()} and {@link #stop(boolean)} calls to the outside. |
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* The external users of this class are most likely interested in whether we have completed step 2 |
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* or not, since that tells us if we can act on the camera or not, rather than knowing about |
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* steps 3 and 4. |
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@ -87,18 +81,11 @@ import java.util.concurrent.TimeUnit; |
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* So in the {@link CameraEngine} notation, |
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* - {@link #start()}: ASYNC - starts the engine (S2). When possible, at a later time, |
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* S3 and S4 are also performed. |
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* - {@link #stop()}: ASYNC - stops everything: undoes S4, then S3, then S2. |
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* - {@link #stop(boolean)}: ASYNC - stops everything: undoes S4, then S3, then S2. |
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* - {@link #restart()}: ASYNC - completes a stop then a start. |
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* - {@link #destroy()}: SYNC - performs a {@link #stop()} that will go on no matter the exceptions, |
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* - {@link #destroy()}: SYNC - performs a {@link #stop(boolean)} that will go on no matter what, |
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* without throwing. Makes the engine unusable and clears resources. |
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* |
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* For example, we expose the engine (S2) state through {@link #getEngineState()}. It will be: |
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* - {@link #STATE_STARTING} if we're into step 2 |
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* - {@link #STATE_STARTED} if we've completed step 2. No clue about 3 or 4. |
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* - {@link #STATE_STOPPING} if we're undoing steps 4, 3 and 2. |
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* - {@link #STATE_STOPPED} if we have undone steps 4, 3 and 2 (or they never started at all). |
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* |
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* |
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* THREADING |
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* Subclasses should always execute code on the thread given by {@link #mHandler}. |
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* For convenience, all the setup and tear down methods are called on this engine thread: |
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@ -127,17 +114,16 @@ public abstract class CameraEngine implements |
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public interface Callback { |
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@NonNull Context getContext(); |
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void dispatchOnCameraOpened(CameraOptions options); |
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void dispatchOnCameraOpened(@NonNull CameraOptions options); |
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void dispatchOnCameraClosed(); |
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void onCameraPreviewStreamSizeChanged(); |
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void onShutter(boolean shouldPlaySound); |
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void dispatchOnVideoTaken(VideoResult.Stub stub); |
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void dispatchOnPictureTaken(PictureResult.Stub stub); |
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void dispatchOnVideoTaken(@NonNull VideoResult.Stub stub); |
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void dispatchOnPictureTaken(@NonNull PictureResult.Stub stub); |
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void dispatchOnFocusStart(@Nullable Gesture trigger, @NonNull PointF where); |
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void dispatchOnFocusEnd(@Nullable Gesture trigger, boolean success, @NonNull PointF where); |
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void dispatchOnZoomChanged(final float newValue, @Nullable final PointF[] fingers); |
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void dispatchOnExposureCorrectionChanged(float newValue, |
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@NonNull float[] bounds, |
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void dispatchOnExposureCorrectionChanged(float newValue, @NonNull float[] bounds, |
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@Nullable PointF[] fingers); |
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void dispatchFrame(@NonNull Frame frame); |
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void dispatchError(CameraException exception); |
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@ -148,15 +134,7 @@ public abstract class CameraEngine implements |
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private static final String TAG = CameraEngine.class.getSimpleName(); |
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private static final CameraLogger LOG = CameraLogger.create(TAG); |
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@SuppressWarnings({"WeakerAccess", "unused"}) |
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public static final int STATE_STOPPING = Step.STATE_STOPPING; |
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public static final int STATE_STOPPED = Step.STATE_STOPPED; |
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@SuppressWarnings({"WeakerAccess", "unused"}) |
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public static final int STATE_STARTING = Step.STATE_STARTING; |
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public static final int STATE_STARTED = Step.STATE_STARTED; |
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// Need to be protected
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@SuppressWarnings("WeakerAccess") protected WorkerHandler mHandler; |
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@SuppressWarnings("WeakerAccess") protected final Callback mCallback; |
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@SuppressWarnings("WeakerAccess") protected CameraPreview mPreview; |
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@SuppressWarnings("WeakerAccess") protected CameraOptions mCameraOptions; |
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@ -177,7 +155,7 @@ public abstract class CameraEngine implements |
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@SuppressWarnings("WeakerAccess") protected boolean mPictureSnapshotMetering; |
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@SuppressWarnings("WeakerAccess") protected float mPreviewFrameRate; |
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// Can be private
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private WorkerHandler mHandler; |
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@VisibleForTesting Handler mCrashHandler; |
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private final FrameManager mFrameManager; |
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private final Angles mAngles; |
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@ -193,36 +171,42 @@ public abstract class CameraEngine implements |
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private int mAudioBitRate; |
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private boolean mHasFrameProcessors; |
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private long mAutoFocusResetDelayMillis; |
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// in REF_VIEW, for consistency with SizeSelectors
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private int mSnapshotMaxWidth = Integer.MAX_VALUE; |
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// in REF_VIEW, for consistency with SizeSelectors
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private int mSnapshotMaxHeight = Integer.MAX_VALUE; |
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private int mSnapshotMaxWidth = Integer.MAX_VALUE; // in REF_VIEW like SizeSelectors
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private int mSnapshotMaxHeight = Integer.MAX_VALUE; // in REF_VIEW like SizeSelectors
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private Overlay overlay; |
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// Steps
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private final Step.Callback mStepCallback = new Step.Callback() { |
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@Override @NonNull public Executor getExecutor() { return mHandler.getExecutor(); } |
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@Override public void handleException(@NonNull Exception exception) { |
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CameraEngine.this.handleException(Thread.currentThread(), exception, false); |
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@SuppressWarnings("WeakerAccess") |
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protected final CameraStateOrchestrator mOrchestrator |
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= new CameraStateOrchestrator(new CameraOrchestrator.Callback() { |
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@Override |
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@NonNull |
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public WorkerHandler getJobWorker(@NonNull String job) { |
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return mHandler; |
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} |
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@Override |
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public void handleJobException(@NonNull String job, @NonNull Exception exception) { |
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handleException(Thread.currentThread(), exception, false); |
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} |
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}; |
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@VisibleForTesting |
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Step mEngineStep = new Step("engine", mStepCallback); |
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private Step mBindStep = new Step("bind", mStepCallback); |
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private Step mPreviewStep = new Step("preview", mStepCallback); |
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private Step mAllStep = new Step("all", mStepCallback); |
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}); |
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// Ops used for testing.
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@VisibleForTesting(otherwise = VisibleForTesting.PROTECTED) Op<Void> mZoomOp = new Op<>(); |
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@VisibleForTesting(otherwise = VisibleForTesting.PROTECTED) Op<Void> mExposureCorrectionOp |
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= new Op<>(); |
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@VisibleForTesting(otherwise = VisibleForTesting.PROTECTED) Op<Void> mFlashOp = new Op<>(); |
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@VisibleForTesting(otherwise = VisibleForTesting.PROTECTED) Op<Void> mWhiteBalanceOp |
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= new Op<>(); |
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@VisibleForTesting(otherwise = VisibleForTesting.PROTECTED) Op<Void> mHdrOp = new Op<>(); |
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@VisibleForTesting(otherwise = VisibleForTesting.PROTECTED) Op<Void> mLocationOp = new Op<>(); |
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@VisibleForTesting(otherwise = VisibleForTesting.PROTECTED) Op<Void> mPlaySoundsOp = new Op<>(); |
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@VisibleForTesting(otherwise = VisibleForTesting.PROTECTED) Op<Void> mPreviewFrameRateOp = new Op<>(); |
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@VisibleForTesting(otherwise = VisibleForTesting.PROTECTED) Task<Void> mZoomTask |
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= Tasks.forResult(null); |
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@VisibleForTesting(otherwise = VisibleForTesting.PROTECTED) Task<Void> mExposureCorrectionTask |
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= Tasks.forResult(null); |
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@VisibleForTesting(otherwise = VisibleForTesting.PROTECTED) Task<Void> mFlashTask |
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= Tasks.forResult(null); |
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@VisibleForTesting(otherwise = VisibleForTesting.PROTECTED) Task<Void> mWhiteBalanceTask |
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= Tasks.forResult(null); |
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@VisibleForTesting(otherwise = VisibleForTesting.PROTECTED) Task<Void> mHdrTask |
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= Tasks.forResult(null); |
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@VisibleForTesting(otherwise = VisibleForTesting.PROTECTED) Task<Void> mLocationTask |
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= Tasks.forResult(null); |
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@VisibleForTesting(otherwise = VisibleForTesting.PROTECTED) Task<Void> mPlaySoundsTask |
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= Tasks.forResult(null); |
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@VisibleForTesting(otherwise = VisibleForTesting.PROTECTED) Task<Void> mPreviewFrameRateTask |
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= Tasks.forResult(null); |
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protected CameraEngine(@NonNull Callback callback) { |
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mCallback = callback; |
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@ -252,7 +236,7 @@ public abstract class CameraEngine implements |
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*/ |
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private class CrashExceptionHandler implements Thread.UncaughtExceptionHandler { |
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@Override |
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public void uncaughtException(final Thread thread, final Throwable throwable) { |
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public void uncaughtException(@NonNull Thread thread, @NonNull Throwable throwable) { |
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handleException(thread, throwable, true); |
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} |
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} |
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@ -263,7 +247,7 @@ public abstract class CameraEngine implements |
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*/ |
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private static class NoOpExceptionHandler implements Thread.UncaughtExceptionHandler { |
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@Override |
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public void uncaughtException(Thread t, Throwable e) { |
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public void uncaughtException(@NonNull Thread thread, @NonNull Throwable throwable) { |
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// No-op.
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} |
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} |
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@ -305,7 +289,7 @@ public abstract class CameraEngine implements |
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final CameraException cameraException = (CameraException) throwable; |
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LOG.e("uncaughtException:", "Got CameraException:", cameraException, |
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"on engine state:", getEngineState()); |
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"on state:", getState()); |
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if (fromExceptionHandler) { |
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// Got to restart the handler.
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thread.interrupt(); |
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@ -322,49 +306,95 @@ public abstract class CameraEngine implements |
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//endregion
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//region states and steps
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//region State management
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public final int getEngineState() { |
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return mEngineStep.getState(); |
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@NonNull |
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public final CameraState getState() { |
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return mOrchestrator.getCurrentState(); |
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} |
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@SuppressWarnings("WeakerAccess") |
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public final int getBindState() { |
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return mBindStep.getState(); |
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@NonNull |
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public final CameraState getTargetState() { |
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return mOrchestrator.getTargetState(); |
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} |
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@SuppressWarnings({"unused", "WeakerAccess"}) |
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public final int getPreviewState() { |
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return mPreviewStep.getState(); |
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public boolean isChangingState() { |
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return mOrchestrator.hasPendingStateChange(); |
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} |
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private boolean canStartEngine() { |
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return mEngineStep.isStoppingOrStopped(); |
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/** |
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* Calls {@link #stop(boolean)} and waits for it. |
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* Not final due to mockito requirements. |
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* |
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* NOTE: Should not be called on the orchestrator thread! This would cause deadlocks due to us |
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* awaiting for {@link #stop(boolean)} to return. |
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*/ |
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public void destroy() { |
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LOG.i("DESTROY:", "state:", getState(), "thread:", Thread.currentThread()); |
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// Prevent CameraEngine leaks. Don't set to null, or exceptions
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// inside the standard stop() method might crash the main thread.
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mHandler.getThread().setUncaughtExceptionHandler(new NoOpExceptionHandler()); |
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// Stop if needed, synchronously and silently.
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// Cannot use Tasks.await() because we might be on the UI thread.
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final CountDownLatch latch = new CountDownLatch(1); |
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stop(true).addOnCompleteListener( |
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WorkerHandler.get().getExecutor(), |
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new OnCompleteListener<Void>() { |
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@Override |
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public void onComplete(@NonNull Task<Void> task) { |
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latch.countDown(); |
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} |
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}); |
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try { |
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boolean success = latch.await(3, TimeUnit.SECONDS); |
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if (!success) { |
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LOG.e("Probably some deadlock in destroy.", |
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"Current thread:", Thread.currentThread(), |
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"Handler thread: ", mHandler.getThread()); |
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} |
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} catch (InterruptedException ignore) {} |
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} |
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private boolean needsStopEngine() { |
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return mEngineStep.isStartedOrStarting(); |
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@SuppressWarnings("WeakerAccess") |
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public void restart() { |
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LOG.i("RESTART:", "scheduled. State:", getState()); |
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stop(false); |
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start(); |
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} |
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private boolean canStartBind() { |
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return mEngineStep.isStarted() |
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&& mPreview != null |
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&& mPreview.hasSurface() |
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&& mBindStep.isStoppingOrStopped(); |
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@NonNull |
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public Task<Void> start() { |
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LOG.i("START:", "scheduled. State:", getState()); |
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Task<Void> engine = startEngine(); |
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startBind(); |
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startPreview(); |
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return engine; |
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} |
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private boolean needsStopBind() { |
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return mBindStep.isStartedOrStarting(); |
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@NonNull |
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public Task<Void> stop(final boolean swallowExceptions) { |
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LOG.i("STOP:", "scheduled. State:", getState()); |
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stopPreview(swallowExceptions); |
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|
|
|
stopBind(swallowExceptions); |
|
|
|
|
return stopEngine(swallowExceptions); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
private boolean canStartPreview() { |
|
|
|
|
return mEngineStep.isStarted() |
|
|
|
|
&& mBindStep.isStarted() |
|
|
|
|
&& mPreviewStep.isStoppingOrStopped(); |
|
|
|
|
@SuppressWarnings("WeakerAccess") |
|
|
|
|
@NonNull |
|
|
|
|
protected Task<Void> restartBind() { |
|
|
|
|
LOG.i("RESTART BIND:", "scheduled. State:", getState()); |
|
|
|
|
stopPreview(false); |
|
|
|
|
stopBind(false); |
|
|
|
|
startBind(); |
|
|
|
|
return startPreview(); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
private boolean needsStopPreview() { |
|
|
|
|
return mPreviewStep.isStartedOrStarting(); |
|
|
|
|
@SuppressWarnings("WeakerAccess") |
|
|
|
|
@NonNull |
|
|
|
|
protected Task<Void> restartPreview() { |
|
|
|
|
LOG.i("RESTART PREVIEW:", "scheduled. State:", getState()); |
|
|
|
|
stopPreview(false); |
|
|
|
|
return startPreview(); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
//endregion
|
|
|
|
|
@ -374,8 +404,9 @@ public abstract class CameraEngine implements |
|
|
|
|
@NonNull |
|
|
|
|
@EngineThread |
|
|
|
|
private Task<Void> startEngine() { |
|
|
|
|
if (canStartEngine()) { |
|
|
|
|
mEngineStep.doStart(false, new Callable<Task<Void>>() { |
|
|
|
|
return mOrchestrator.scheduleStateChange(CameraState.OFF, CameraState.ENGINE, |
|
|
|
|
true, |
|
|
|
|
new Callable<Task<Void>>() { |
|
|
|
|
@Override |
|
|
|
|
public Task<Void> call() { |
|
|
|
|
if (!collectCameraInfo(mFacing)) { |
|
|
|
|
@ -384,34 +415,31 @@ public abstract class CameraEngine implements |
|
|
|
|
} |
|
|
|
|
return onStartEngine(); |
|
|
|
|
} |
|
|
|
|
}, new Runnable() { |
|
|
|
|
}).addOnSuccessListener(new OnSuccessListener<Void>() { |
|
|
|
|
@Override |
|
|
|
|
public void run() { |
|
|
|
|
public void onSuccess(Void aVoid) { |
|
|
|
|
mCallback.dispatchOnCameraOpened(mCameraOptions); |
|
|
|
|
} |
|
|
|
|
}); |
|
|
|
|
} |
|
|
|
|
return mEngineStep.getTask(); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
@NonNull |
|
|
|
|
@EngineThread |
|
|
|
|
private Task<Void> stopEngine(boolean swallowExceptions) { |
|
|
|
|
if (needsStopEngine()) { |
|
|
|
|
mEngineStep.doStop(swallowExceptions, new Callable<Task<Void>>() { |
|
|
|
|
return mOrchestrator.scheduleStateChange(CameraState.ENGINE, CameraState.OFF, |
|
|
|
|
!swallowExceptions, |
|
|
|
|
new Callable<Task<Void>>() { |
|
|
|
|
@Override |
|
|
|
|
public Task<Void> call() { |
|
|
|
|
return onStopEngine(); |
|
|
|
|
} |
|
|
|
|
}, new Runnable() { |
|
|
|
|
}).addOnSuccessListener(new OnSuccessListener<Void>() { |
|
|
|
|
@Override |
|
|
|
|
public void run() { |
|
|
|
|
public void onSuccess(Void aVoid) { |
|
|
|
|
mCallback.dispatchOnCameraClosed(); |
|
|
|
|
} |
|
|
|
|
}); |
|
|
|
|
} |
|
|
|
|
return mEngineStep.getTask(); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* Starts the engine. |
|
|
|
|
@ -438,30 +466,33 @@ public abstract class CameraEngine implements |
|
|
|
|
@NonNull |
|
|
|
|
@EngineThread |
|
|
|
|
private Task<Void> startBind() { |
|
|
|
|
if (canStartBind()) { |
|
|
|
|
mBindStep.doStart(false, new Callable<Task<Void>>() { |
|
|
|
|
return mOrchestrator.scheduleStateChange(CameraState.ENGINE, CameraState.BIND, |
|
|
|
|
true, |
|
|
|
|
new Callable<Task<Void>>() { |
|
|
|
|
@Override |
|
|
|
|
public Task<Void> call() { |
|
|
|
|
if (mPreview != null && mPreview.hasSurface()) { |
|
|
|
|
return onStartBind(); |
|
|
|
|
} else { |
|
|
|
|
return Tasks.forCanceled(); |
|
|
|
|
} |
|
|
|
|
}); |
|
|
|
|
} |
|
|
|
|
return mBindStep.getTask(); |
|
|
|
|
}); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
@SuppressWarnings("UnusedReturnValue") |
|
|
|
|
@NonNull |
|
|
|
|
@EngineThread |
|
|
|
|
private Task<Void> stopBind(boolean swallowExceptions) { |
|
|
|
|
if (needsStopBind()) { |
|
|
|
|
mBindStep.doStop(swallowExceptions, new Callable<Task<Void>>() { |
|
|
|
|
return mOrchestrator.scheduleStateChange(CameraState.BIND, CameraState.ENGINE, |
|
|
|
|
!swallowExceptions, |
|
|
|
|
new Callable<Task<Void>>() { |
|
|
|
|
@Override |
|
|
|
|
public Task<Void> call() { |
|
|
|
|
return onStopBind(); |
|
|
|
|
} |
|
|
|
|
}); |
|
|
|
|
} |
|
|
|
|
return mBindStep.getTask(); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* Starts the binding process. |
|
|
|
|
@ -481,39 +512,6 @@ public abstract class CameraEngine implements |
|
|
|
|
@EngineThread |
|
|
|
|
protected abstract Task<Void> onStopBind(); |
|
|
|
|
|
|
|
|
|
@SuppressWarnings("WeakerAccess") |
|
|
|
|
protected void restartBind() { |
|
|
|
|
LOG.i("restartBind", "posting."); |
|
|
|
|
mHandler.run(new Runnable() { |
|
|
|
|
@Override |
|
|
|
|
public void run() { |
|
|
|
|
LOG.w("restartBind", "executing stopPreview."); |
|
|
|
|
stopPreview(false).continueWithTask(mHandler.getExecutor(), |
|
|
|
|
new Continuation<Void, Task<Void>>() { |
|
|
|
|
@Override |
|
|
|
|
public Task<Void> then(@NonNull Task<Void> task) { |
|
|
|
|
LOG.w("restartBind", "executing stopBind."); |
|
|
|
|
return stopBind(false); |
|
|
|
|
} |
|
|
|
|
}).onSuccessTask(mHandler.getExecutor(), new SuccessContinuation<Void, Void>() { |
|
|
|
|
@NonNull |
|
|
|
|
@Override |
|
|
|
|
public Task<Void> then(@Nullable Void aVoid) { |
|
|
|
|
LOG.w("restartBind", "executing startBind."); |
|
|
|
|
return startBind(); |
|
|
|
|
} |
|
|
|
|
}).onSuccessTask(mHandler.getExecutor(), new SuccessContinuation<Void, Void>() { |
|
|
|
|
@NonNull |
|
|
|
|
@Override |
|
|
|
|
public Task<Void> then(@Nullable Void aVoid) { |
|
|
|
|
LOG.w("restartBind", "executing startPreview."); |
|
|
|
|
return startPreview(); |
|
|
|
|
} |
|
|
|
|
}); |
|
|
|
|
} |
|
|
|
|
}); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
//endregion
|
|
|
|
|
|
|
|
|
|
//region Start & Stop preview
|
|
|
|
|
@ -521,47 +519,29 @@ public abstract class CameraEngine implements |
|
|
|
|
@NonNull |
|
|
|
|
@EngineThread |
|
|
|
|
private Task<Void> startPreview() { |
|
|
|
|
LOG.i("startPreview", "canStartPreview:", canStartPreview()); |
|
|
|
|
if (canStartPreview()) { |
|
|
|
|
mPreviewStep.doStart(false, new Callable<Task<Void>>() { |
|
|
|
|
return mOrchestrator.scheduleStateChange(CameraState.BIND, CameraState.PREVIEW, |
|
|
|
|
true, |
|
|
|
|
new Callable<Task<Void>>() { |
|
|
|
|
@Override |
|
|
|
|
public Task<Void> call() { |
|
|
|
|
return onStartPreview(); |
|
|
|
|
} |
|
|
|
|
}); |
|
|
|
|
} |
|
|
|
|
return mPreviewStep.getTask(); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
@SuppressWarnings("UnusedReturnValue") |
|
|
|
|
@NonNull |
|
|
|
|
@EngineThread |
|
|
|
|
private Task<Void> stopPreview(boolean swallowExceptions) { |
|
|
|
|
LOG.i("stopPreview", |
|
|
|
|
"needsStopPreview:", needsStopPreview(), |
|
|
|
|
"swallowExceptions:", swallowExceptions); |
|
|
|
|
if (needsStopPreview()) { |
|
|
|
|
mPreviewStep.doStop(swallowExceptions, new Callable<Task<Void>>() { |
|
|
|
|
return mOrchestrator.scheduleStateChange(CameraState.PREVIEW, CameraState.BIND, |
|
|
|
|
!swallowExceptions, |
|
|
|
|
new Callable<Task<Void>>() { |
|
|
|
|
@Override |
|
|
|
|
public Task<Void> call() { |
|
|
|
|
return onStopPreview(); |
|
|
|
|
} |
|
|
|
|
}); |
|
|
|
|
} |
|
|
|
|
return mPreviewStep.getTask(); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
@SuppressWarnings("WeakerAccess") |
|
|
|
|
protected void restartPreview() { |
|
|
|
|
LOG.i("restartPreview", "posting."); |
|
|
|
|
mHandler.run(new Runnable() { |
|
|
|
|
@Override |
|
|
|
|
public void run() { |
|
|
|
|
LOG.i("restartPreview", "executing."); |
|
|
|
|
stopPreview(false); |
|
|
|
|
startPreview(); |
|
|
|
|
} |
|
|
|
|
}); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* Starts the preview streaming. |
|
|
|
|
@ -592,33 +572,24 @@ public abstract class CameraEngine implements |
|
|
|
|
@Override |
|
|
|
|
public final void onSurfaceAvailable() { |
|
|
|
|
LOG.i("onSurfaceAvailable:", "Size is", getPreviewSurfaceSize(Reference.VIEW)); |
|
|
|
|
mHandler.run(new Runnable() { |
|
|
|
|
@Override |
|
|
|
|
public void run() { |
|
|
|
|
startBind().onSuccessTask(mHandler.getExecutor(), new SuccessContinuation<Void, Void>() { |
|
|
|
|
@NonNull |
|
|
|
|
@Override |
|
|
|
|
public Task<Void> then(@Nullable Void aVoid) { |
|
|
|
|
return startPreview(); |
|
|
|
|
} |
|
|
|
|
}); |
|
|
|
|
startBind(); |
|
|
|
|
startPreview(); |
|
|
|
|
} |
|
|
|
|
}); |
|
|
|
|
|
|
|
|
|
@Override |
|
|
|
|
public final void onSurfaceDestroyed() { |
|
|
|
|
LOG.i("onSurfaceDestroyed"); |
|
|
|
|
stopPreview(false); |
|
|
|
|
stopBind(false); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
@Override |
|
|
|
|
public final void onSurfaceChanged() { |
|
|
|
|
LOG.i("onSurfaceChanged:", "Size is", getPreviewSurfaceSize(Reference.VIEW), |
|
|
|
|
"Posting."); |
|
|
|
|
mHandler.run(new Runnable() { |
|
|
|
|
LOG.i("onSurfaceChanged:", "Size is", getPreviewSurfaceSize(Reference.VIEW)); |
|
|
|
|
mOrchestrator.scheduleStateful("surface changed", CameraState.BIND, |
|
|
|
|
new Runnable() { |
|
|
|
|
@Override |
|
|
|
|
public void run() { |
|
|
|
|
LOG.i("onSurfaceChanged:", |
|
|
|
|
"Engine started?", mEngineStep.isStarted(), |
|
|
|
|
"Bind started?", mBindStep.isStarted()); |
|
|
|
|
if (!mEngineStep.isStarted()) return; // Too early
|
|
|
|
|
if (!mBindStep.isStarted()) return; // Too early
|
|
|
|
|
|
|
|
|
|
// Compute a new camera preview size and apply.
|
|
|
|
|
Size newSize = computePreviewStreamSize(); |
|
|
|
|
if (newSize.equals(mPreviewStreamSize)) { |
|
|
|
|
@ -643,176 +614,6 @@ public abstract class CameraEngine implements |
|
|
|
|
@EngineThread |
|
|
|
|
protected abstract void onPreviewStreamSizeChanged(); |
|
|
|
|
|
|
|
|
|
@Override |
|
|
|
|
public final void onSurfaceDestroyed() { |
|
|
|
|
LOG.i("onSurfaceDestroyed"); |
|
|
|
|
mHandler.run(new Runnable() { |
|
|
|
|
@Override |
|
|
|
|
public void run() { |
|
|
|
|
stopPreview(false).onSuccessTask(mHandler.getExecutor(), |
|
|
|
|
new SuccessContinuation<Void, Void>() { |
|
|
|
|
@NonNull |
|
|
|
|
@Override |
|
|
|
|
public Task<Void> then(@Nullable Void aVoid) { |
|
|
|
|
return stopBind(false); |
|
|
|
|
} |
|
|
|
|
}); |
|
|
|
|
} |
|
|
|
|
}); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
//endregion
|
|
|
|
|
|
|
|
|
|
//region Start & Stop all
|
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* Not final due to mockito requirements, but this is basically |
|
|
|
|
* it, nothing more to do. |
|
|
|
|
* |
|
|
|
|
* NOTE: Should not be called on the {@link #mHandler} thread! I think |
|
|
|
|
* that would cause deadlocks due to us awaiting for {@link #stop()} to return. |
|
|
|
|
*/ |
|
|
|
|
public void destroy() { |
|
|
|
|
LOG.i("destroy:", "state:", getEngineState(), "thread:", Thread.currentThread()); |
|
|
|
|
// Prevent CameraEngine leaks. Don't set to null, or exceptions
|
|
|
|
|
// inside the standard stop() method might crash the main thread.
|
|
|
|
|
mHandler.getThread().setUncaughtExceptionHandler(new NoOpExceptionHandler()); |
|
|
|
|
// Stop if needed, synchronously and silently.
|
|
|
|
|
// Cannot use Tasks.await() because we might be on the UI thread.
|
|
|
|
|
final CountDownLatch latch = new CountDownLatch(1); |
|
|
|
|
stop(true).addOnCompleteListener(mHandler.getExecutor(), |
|
|
|
|
new OnCompleteListener<Void>() { |
|
|
|
|
@Override |
|
|
|
|
public void onComplete(@NonNull Task<Void> task) { |
|
|
|
|
latch.countDown(); |
|
|
|
|
} |
|
|
|
|
}); |
|
|
|
|
try { |
|
|
|
|
boolean success = latch.await(3, TimeUnit.SECONDS); |
|
|
|
|
if (!success) { |
|
|
|
|
// TODO seems like this is always the case?
|
|
|
|
|
LOG.e("Probably some deadlock in destroy.", |
|
|
|
|
"Current thread:", Thread.currentThread(), |
|
|
|
|
"Handler thread: ", mHandler.getThread()); |
|
|
|
|
} |
|
|
|
|
} catch (InterruptedException ignore) {} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
@SuppressWarnings("WeakerAccess") |
|
|
|
|
protected final void restart() { |
|
|
|
|
LOG.i("Restart:", "calling stop and start"); |
|
|
|
|
stop(); |
|
|
|
|
start(); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
@NonNull |
|
|
|
|
public Task<Void> start() { |
|
|
|
|
LOG.i("Start:", "posting runnable. State:", getEngineState()); |
|
|
|
|
final TaskCompletionSource<Void> outTask = new TaskCompletionSource<>(); |
|
|
|
|
mHandler.run(new Runnable() { |
|
|
|
|
@Override |
|
|
|
|
public void run() { |
|
|
|
|
LOG.w("Start:", "executing runnable. AllState is", mAllStep.getState()); |
|
|
|
|
// It's better to schedule anyway. allStep might be STARTING and we might be
|
|
|
|
|
// tempted to early return here, but the truth is that there might be a stop
|
|
|
|
|
// already scheduled when the STARTING op ends.
|
|
|
|
|
// if (mAllStep.isStoppingOrStopped()) {
|
|
|
|
|
// LOG.i("Start:", "executing runnable. AllState is STOPPING or STOPPED,
|
|
|
|
|
// so we schedule a start.");
|
|
|
|
|
mAllStep.doStart(false, new Callable<Task<Void>>() { |
|
|
|
|
@Override |
|
|
|
|
public Task<Void> call() { |
|
|
|
|
return startEngine().addOnFailureListener(mHandler.getExecutor(), |
|
|
|
|
new OnFailureListener() { |
|
|
|
|
@Override |
|
|
|
|
public void onFailure(@NonNull Exception e) { |
|
|
|
|
outTask.trySetException(e); |
|
|
|
|
} |
|
|
|
|
}).onSuccessTask(mHandler.getExecutor(), new SuccessContinuation<Void, Void>() { |
|
|
|
|
@NonNull |
|
|
|
|
@Override |
|
|
|
|
public Task<Void> then(@Nullable Void aVoid) { |
|
|
|
|
outTask.trySetResult(null); |
|
|
|
|
return startBind(); |
|
|
|
|
} |
|
|
|
|
}).onSuccessTask(mHandler.getExecutor(), new SuccessContinuation<Void, Void>() { |
|
|
|
|
@NonNull |
|
|
|
|
@Override |
|
|
|
|
public Task<Void> then(@Nullable Void aVoid) { |
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|
return startPreview(); |
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|
} |
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}); |
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} |
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}); |
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// } else {
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|
// // NOTE: this returns early if we were STARTING.
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|
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|
// LOG.i("Start:",
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|
|
|
|
// "executing runnable. AllState is STARTING or STARTED, so we return early.");
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|
|
|
|
// outTask.trySetResult(null);
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|
// }
|
|
|
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|
} |
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|
}); |
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|
return outTask.getTask(); |
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|
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|
} |
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|
@NonNull |
|
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|
|
public Task<Void> stop() { |
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|
return stop(false); |
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|
} |
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|
@NonNull |
|
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|
|
private Task<Void> stop(final boolean swallowExceptions) { |
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|
LOG.i("Stop:", "posting runnable. State:", getEngineState()); |
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|
final TaskCompletionSource<Void> outTask = new TaskCompletionSource<>(); |
|
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|
mHandler.run(new Runnable() { |
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|
@Override |
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|
public void run() { |
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|
LOG.w("Stop:", "executing runnable. AllState is", mAllStep.getState()); |
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|
// It's better to schedule anyway. allStep might be STOPPING and we might be
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// tempted to early return here, but the truth is that there might be a start
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// already scheduled when the STOPPING op ends.
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|
// if (mAllStep.isStartedOrStarting()) {
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|
// LOG.i("Stop:", "executing runnable. AllState is STARTING or STARTED,
|
|
|
|
|
// so we schedule a stop.");
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|
mAllStep.doStop(swallowExceptions, new Callable<Task<Void>>() { |
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|
@Override |
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|
public Task<Void> call() { |
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|
return stopPreview(swallowExceptions).continueWithTask( |
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|
mHandler.getExecutor(), new Continuation<Void, Task<Void>>() { |
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|
@Override |
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|
public Task<Void> then(@NonNull Task<Void> task) { |
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|
return stopBind(swallowExceptions); |
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|
} |
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|
|
|
}).continueWithTask(mHandler.getExecutor(), new Continuation<Void, Task<Void>>() { |
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|
@Override |
|
|
|
|
public Task<Void> then(@NonNull Task<Void> task) { |
|
|
|
|
return stopEngine(swallowExceptions); |
|
|
|
|
} |
|
|
|
|
}).continueWithTask(mHandler.getExecutor(), new Continuation<Void, Task<Void>>() { |
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|
|
|
@Override |
|
|
|
|
public Task<Void> then(@NonNull Task<Void> task) { |
|
|
|
|
if (task.isSuccessful()) { |
|
|
|
|
outTask.trySetResult(null); |
|
|
|
|
} else { |
|
|
|
|
//noinspection ConstantConditions
|
|
|
|
|
outTask.trySetException(task.getException()); |
|
|
|
|
} |
|
|
|
|
return task; |
|
|
|
|
} |
|
|
|
|
}); |
|
|
|
|
} |
|
|
|
|
}); |
|
|
|
|
// } else {
|
|
|
|
|
// // NOTE: this returns early if we were STOPPING.
|
|
|
|
|
// LOG.i("Stop:", "executing runnable.
|
|
|
|
|
// AllState is STOPPING or STOPPED, so we return early.");
|
|
|
|
|
// outTask.trySetResult(null);
|
|
|
|
|
// }
|
|
|
|
|
} |
|
|
|
|
}); |
|
|
|
|
return outTask.getTask(); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
//endregion
|
|
|
|
|
|
|
|
|
|
//region Final setters and getters
|
|
|
|
|
@ -922,7 +723,7 @@ public abstract class CameraEngine implements |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* Sets a new facing value. This will restart the session (if there's any) |
|
|
|
|
* Sets a new facing value. This will restart the engine session (if there's any) |
|
|
|
|
* so that we can open the new facing camera. |
|
|
|
|
* @param facing facing |
|
|
|
|
*/ |
|
|
|
|
@ -930,10 +731,10 @@ public abstract class CameraEngine implements |
|
|
|
|
final Facing old = mFacing; |
|
|
|
|
if (facing != old) { |
|
|
|
|
mFacing = facing; |
|
|
|
|
mHandler.run(new Runnable() { |
|
|
|
|
mOrchestrator.scheduleStateful("facing", CameraState.ENGINE, |
|
|
|
|
new Runnable() { |
|
|
|
|
@Override |
|
|
|
|
public void run() { |
|
|
|
|
if (getEngineState() < STATE_STARTED) return; |
|
|
|
|
if (collectCameraInfo(facing)) { |
|
|
|
|
restart(); |
|
|
|
|
} else { |
|
|
|
|
@ -975,13 +776,12 @@ public abstract class CameraEngine implements |
|
|
|
|
public final void setMode(@NonNull Mode mode) { |
|
|
|
|
if (mode != mMode) { |
|
|
|
|
mMode = mode; |
|
|
|
|
mHandler.run(new Runnable() { |
|
|
|
|
mOrchestrator.scheduleStateful("mode", CameraState.ENGINE, |
|
|
|
|
new Runnable() { |
|
|
|
|
@Override |
|
|
|
|
public void run() { |
|
|
|
|
if (getEngineState() == STATE_STARTED) { |
|
|
|
|
restart(); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
}); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
@ -1134,22 +934,22 @@ public abstract class CameraEngine implements |
|
|
|
|
|
|
|
|
|
/* not final for tests */ |
|
|
|
|
public void takePicture(final @NonNull PictureResult.Stub stub) { |
|
|
|
|
LOG.i("takePicture", "scheduling"); |
|
|
|
|
mHandler.run(new Runnable() { |
|
|
|
|
// Save boolean before scheduling! See how Camera2Engine calls this with a temp value.
|
|
|
|
|
final boolean metering = mPictureMetering; |
|
|
|
|
mOrchestrator.scheduleStateful("take picture", CameraState.BIND, |
|
|
|
|
new Runnable() { |
|
|
|
|
@Override |
|
|
|
|
public void run() { |
|
|
|
|
LOG.i("takePicture", "performing. BindState:", getBindState(), |
|
|
|
|
"isTakingPicture:", isTakingPicture()); |
|
|
|
|
LOG.i("takePicture:", "running. isTakingPicture:", isTakingPicture()); |
|
|
|
|
if (isTakingPicture()) return; |
|
|
|
|
if (mMode == Mode.VIDEO) { |
|
|
|
|
throw new IllegalStateException("Can't take hq pictures while in VIDEO mode"); |
|
|
|
|
} |
|
|
|
|
if (getBindState() < STATE_STARTED) return; |
|
|
|
|
if (isTakingPicture()) return; |
|
|
|
|
stub.isSnapshot = false; |
|
|
|
|
stub.location = mLocation; |
|
|
|
|
stub.facing = mFacing; |
|
|
|
|
stub.format = mPictureFormat; |
|
|
|
|
onTakePicture(stub, mPictureMetering); |
|
|
|
|
onTakePicture(stub, metering); |
|
|
|
|
} |
|
|
|
|
}); |
|
|
|
|
} |
|
|
|
|
@ -1160,13 +960,13 @@ public abstract class CameraEngine implements |
|
|
|
|
* @param stub a picture stub |
|
|
|
|
*/ |
|
|
|
|
public final void takePictureSnapshot(final @NonNull PictureResult.Stub stub) { |
|
|
|
|
LOG.i("takePictureSnapshot", "scheduling"); |
|
|
|
|
mHandler.run(new Runnable() { |
|
|
|
|
// Save boolean before scheduling! See how Camera2Engine calls this with a temp value.
|
|
|
|
|
final boolean metering = mPictureSnapshotMetering; |
|
|
|
|
mOrchestrator.scheduleStateful("take picture snapshot", CameraState.BIND, |
|
|
|
|
new Runnable() { |
|
|
|
|
@Override |
|
|
|
|
public void run() { |
|
|
|
|
LOG.i("takePictureSnapshot", "performing. BindState:", |
|
|
|
|
getBindState(), "isTakingPicture:", isTakingPicture()); |
|
|
|
|
if (getBindState() < STATE_STARTED) return; |
|
|
|
|
LOG.i("takePictureSnapshot:", "running. isTakingPicture:", isTakingPicture()); |
|
|
|
|
if (isTakingPicture()) return; |
|
|
|
|
stub.location = mLocation; |
|
|
|
|
stub.isSnapshot = true; |
|
|
|
|
@ -1175,7 +975,7 @@ public abstract class CameraEngine implements |
|
|
|
|
// Leave the other parameters to subclasses.
|
|
|
|
|
//noinspection ConstantConditions
|
|
|
|
|
AspectRatio ratio = AspectRatio.of(getPreviewSurfaceSize(Reference.OUTPUT)); |
|
|
|
|
onTakePictureSnapshot(stub, ratio, mPictureSnapshotMetering); |
|
|
|
|
onTakePictureSnapshot(stub, ratio, metering); |
|
|
|
|
} |
|
|
|
|
}); |
|
|
|
|
} |
|
|
|
|
@ -1202,13 +1002,10 @@ public abstract class CameraEngine implements |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
public final void takeVideo(final @NonNull VideoResult.Stub stub, final @NonNull File file) { |
|
|
|
|
LOG.i("takeVideo", "scheduling"); |
|
|
|
|
mHandler.run(new Runnable() { |
|
|
|
|
mOrchestrator.scheduleStateful("take video", CameraState.BIND, new Runnable() { |
|
|
|
|
@Override |
|
|
|
|
public void run() { |
|
|
|
|
LOG.i("takeVideo", "performing. BindState:", getBindState(), |
|
|
|
|
"isTakingVideo:", isTakingVideo()); |
|
|
|
|
if (getBindState() < STATE_STARTED) return; |
|
|
|
|
LOG.i("takeVideo:", "running. isTakingVideo:", isTakingVideo()); |
|
|
|
|
if (isTakingVideo()) return; |
|
|
|
|
if (mMode == Mode.PICTURE) { |
|
|
|
|
throw new IllegalStateException("Can't record video while in PICTURE mode"); |
|
|
|
|
@ -1234,14 +1031,11 @@ public abstract class CameraEngine implements |
|
|
|
|
*/ |
|
|
|
|
public final void takeVideoSnapshot(@NonNull final VideoResult.Stub stub, |
|
|
|
|
@NonNull final File file) { |
|
|
|
|
LOG.i("takeVideoSnapshot", "scheduling"); |
|
|
|
|
mHandler.run(new Runnable() { |
|
|
|
|
mOrchestrator.scheduleStateful("take video snapshot", CameraState.BIND, |
|
|
|
|
new Runnable() { |
|
|
|
|
@Override |
|
|
|
|
public void run() { |
|
|
|
|
LOG.i("takeVideoSnapshot", "performing. BindState:", getBindState(), |
|
|
|
|
"isTakingVideo:", isTakingVideo()); |
|
|
|
|
if (getBindState() < STATE_STARTED) return; |
|
|
|
|
if (isTakingVideo()) return; |
|
|
|
|
LOG.i("takeVideoSnapshot:", "running. isTakingVideo:", isTakingVideo()); |
|
|
|
|
stub.file = file; |
|
|
|
|
stub.isSnapshot = true; |
|
|
|
|
stub.videoCodec = mVideoCodec; |
|
|
|
|
@ -1260,11 +1054,10 @@ public abstract class CameraEngine implements |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
public final void stopVideo() { |
|
|
|
|
LOG.i("stopVideo", "posting"); |
|
|
|
|
mHandler.run(new Runnable() { |
|
|
|
|
mOrchestrator.schedule("stop video", true, new Runnable() { |
|
|
|
|
@Override |
|
|
|
|
public void run() { |
|
|
|
|
LOG.i("stopVideo", "executing.", "isTakingVideo?", isTakingVideo()); |
|
|
|
|
LOG.i("stopVideo", "running. isTakingVideo?", isTakingVideo()); |
|
|
|
|
onStopVideo(); |
|
|
|
|
} |
|
|
|
|
}); |
|
|
|
|
|
Mattia Iavarone
5 years ago
committed by
GitHub