Moving src/webrtc into src/.
In order to eliminate the WebRTC Subtree mirror in Chromium, WebRTC is moving the content of the src/webrtc directory up to the src/ directory. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true TBR=tommi@webrtc.org Bug: chromium:611808 Change-Id: Iac59c5b51b950f174119565bac87955a7994bc38 Reviewed-on: https://webrtc-review.googlesource.com/1560 Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Henrik Kjellander <kjellander@webrtc.org> Cr-Commit-Position: refs/heads/master@{#19845}
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Mirko Bonadei
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480
sdk/android/src/java/org/webrtc/Camera2Session.java
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480
sdk/android/src/java/org/webrtc/Camera2Session.java
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@ -0,0 +1,480 @@
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/*
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* Copyright 2016 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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package org.webrtc;
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import android.annotation.TargetApi;
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import android.content.Context;
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import android.graphics.Matrix;
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import android.graphics.SurfaceTexture;
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import android.hardware.camera2.CameraAccessException;
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import android.hardware.camera2.CameraCaptureSession;
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import android.hardware.camera2.CameraCharacteristics;
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import android.hardware.camera2.CameraDevice;
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import android.hardware.camera2.CameraManager;
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import android.hardware.camera2.CameraMetadata;
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import android.hardware.camera2.CaptureFailure;
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import android.hardware.camera2.CaptureRequest;
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import android.media.MediaRecorder;
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import android.os.Handler;
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import android.util.Range;
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import android.view.Surface;
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import android.view.WindowManager;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.concurrent.TimeUnit;
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import org.webrtc.CameraEnumerationAndroid.CaptureFormat;
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@TargetApi(21)
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class Camera2Session implements CameraSession {
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private static final String TAG = "Camera2Session";
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private static final Histogram camera2StartTimeMsHistogram =
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Histogram.createCounts("WebRTC.Android.Camera2.StartTimeMs", 1, 10000, 50);
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private static final Histogram camera2StopTimeMsHistogram =
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Histogram.createCounts("WebRTC.Android.Camera2.StopTimeMs", 1, 10000, 50);
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private static final Histogram camera2ResolutionHistogram = Histogram.createEnumeration(
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"WebRTC.Android.Camera2.Resolution", CameraEnumerationAndroid.COMMON_RESOLUTIONS.size());
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private static enum SessionState { RUNNING, STOPPED }
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private final boolean videoFrameEmitTrialEnabled;
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private final Handler cameraThreadHandler;
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private final CreateSessionCallback callback;
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private final Events events;
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private final Context applicationContext;
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private final CameraManager cameraManager;
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private final SurfaceTextureHelper surfaceTextureHelper;
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private final Surface mediaRecorderSurface;
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private final String cameraId;
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private final int width;
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private final int height;
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private final int framerate;
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// Initialized at start
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private CameraCharacteristics cameraCharacteristics;
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private int cameraOrientation;
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private boolean isCameraFrontFacing;
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private int fpsUnitFactor;
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private CaptureFormat captureFormat;
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// Initialized when camera opens
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private CameraDevice cameraDevice;
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private Surface surface;
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// Initialized when capture session is created
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private CameraCaptureSession captureSession;
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// State
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private SessionState state = SessionState.RUNNING;
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private boolean firstFrameReported = false;
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// Used only for stats. Only used on the camera thread.
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private final long constructionTimeNs; // Construction time of this class.
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private class CameraStateCallback extends CameraDevice.StateCallback {
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private String getErrorDescription(int errorCode) {
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switch (errorCode) {
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case CameraDevice.StateCallback.ERROR_CAMERA_DEVICE:
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return "Camera device has encountered a fatal error.";
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case CameraDevice.StateCallback.ERROR_CAMERA_DISABLED:
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return "Camera device could not be opened due to a device policy.";
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case CameraDevice.StateCallback.ERROR_CAMERA_IN_USE:
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return "Camera device is in use already.";
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case CameraDevice.StateCallback.ERROR_CAMERA_SERVICE:
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return "Camera service has encountered a fatal error.";
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case CameraDevice.StateCallback.ERROR_MAX_CAMERAS_IN_USE:
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return "Camera device could not be opened because"
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+ " there are too many other open camera devices.";
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default:
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return "Unknown camera error: " + errorCode;
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}
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}
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@Override
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public void onDisconnected(CameraDevice camera) {
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checkIsOnCameraThread();
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final boolean startFailure = (captureSession == null) && (state != SessionState.STOPPED);
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state = SessionState.STOPPED;
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stopInternal();
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if (startFailure) {
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callback.onFailure(FailureType.DISCONNECTED, "Camera disconnected / evicted.");
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} else {
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events.onCameraDisconnected(Camera2Session.this);
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}
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}
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@Override
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public void onError(CameraDevice camera, int errorCode) {
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checkIsOnCameraThread();
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reportError(getErrorDescription(errorCode));
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}
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@Override
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public void onOpened(CameraDevice camera) {
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checkIsOnCameraThread();
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Logging.d(TAG, "Camera opened.");
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cameraDevice = camera;
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final SurfaceTexture surfaceTexture = surfaceTextureHelper.getSurfaceTexture();
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surfaceTexture.setDefaultBufferSize(captureFormat.width, captureFormat.height);
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surface = new Surface(surfaceTexture);
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List<Surface> surfaces = new ArrayList<Surface>();
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surfaces.add(surface);
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if (mediaRecorderSurface != null) {
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Logging.d(TAG, "Add MediaRecorder surface to capture session.");
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surfaces.add(mediaRecorderSurface);
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}
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try {
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camera.createCaptureSession(surfaces, new CaptureSessionCallback(), cameraThreadHandler);
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} catch (CameraAccessException e) {
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reportError("Failed to create capture session. " + e);
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return;
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}
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}
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@Override
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public void onClosed(CameraDevice camera) {
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checkIsOnCameraThread();
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Logging.d(TAG, "Camera device closed.");
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events.onCameraClosed(Camera2Session.this);
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}
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}
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private class CaptureSessionCallback extends CameraCaptureSession.StateCallback {
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@Override
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public void onConfigureFailed(CameraCaptureSession session) {
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checkIsOnCameraThread();
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session.close();
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reportError("Failed to configure capture session.");
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}
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@Override
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public void onConfigured(CameraCaptureSession session) {
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checkIsOnCameraThread();
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Logging.d(TAG, "Camera capture session configured.");
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captureSession = session;
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try {
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/*
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* The viable options for video capture requests are:
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* TEMPLATE_PREVIEW: High frame rate is given priority over the highest-quality
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* post-processing.
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* TEMPLATE_RECORD: Stable frame rate is used, and post-processing is set for recording
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* quality.
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*/
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final CaptureRequest.Builder captureRequestBuilder =
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cameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_RECORD);
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// Set auto exposure fps range.
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captureRequestBuilder.set(CaptureRequest.CONTROL_AE_TARGET_FPS_RANGE,
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new Range<Integer>(captureFormat.framerate.min / fpsUnitFactor,
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captureFormat.framerate.max / fpsUnitFactor));
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captureRequestBuilder.set(
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CaptureRequest.CONTROL_AE_MODE, CaptureRequest.CONTROL_AE_MODE_ON);
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captureRequestBuilder.set(CaptureRequest.CONTROL_AE_LOCK, false);
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chooseStabilizationMode(captureRequestBuilder);
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chooseFocusMode(captureRequestBuilder);
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captureRequestBuilder.addTarget(surface);
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if (mediaRecorderSurface != null) {
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Logging.d(TAG, "Add MediaRecorder surface to CaptureRequest.Builder");
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captureRequestBuilder.addTarget(mediaRecorderSurface);
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}
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session.setRepeatingRequest(
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captureRequestBuilder.build(), new CameraCaptureCallback(), cameraThreadHandler);
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} catch (CameraAccessException e) {
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reportError("Failed to start capture request. " + e);
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return;
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}
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surfaceTextureHelper.startListening(
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new SurfaceTextureHelper.OnTextureFrameAvailableListener() {
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@Override
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public void onTextureFrameAvailable(
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int oesTextureId, float[] transformMatrix, long timestampNs) {
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checkIsOnCameraThread();
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if (state != SessionState.RUNNING) {
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Logging.d(TAG, "Texture frame captured but camera is no longer running.");
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surfaceTextureHelper.returnTextureFrame();
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return;
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}
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if (!firstFrameReported) {
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firstFrameReported = true;
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final int startTimeMs =
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(int) TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - constructionTimeNs);
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camera2StartTimeMsHistogram.addSample(startTimeMs);
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}
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int rotation = getFrameOrientation();
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if (isCameraFrontFacing) {
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// Undo the mirror that the OS "helps" us with.
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// http://developer.android.com/reference/android/hardware/Camera.html#setDisplayOrientation(int)
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transformMatrix = RendererCommon.multiplyMatrices(
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transformMatrix, RendererCommon.horizontalFlipMatrix());
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}
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// Undo camera orientation - we report it as rotation instead.
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transformMatrix =
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RendererCommon.rotateTextureMatrix(transformMatrix, -cameraOrientation);
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if (videoFrameEmitTrialEnabled) {
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VideoFrame.Buffer buffer = surfaceTextureHelper.createTextureBuffer(
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captureFormat.width, captureFormat.height,
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RendererCommon.convertMatrixToAndroidGraphicsMatrix(transformMatrix));
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final VideoFrame frame = new VideoFrame(buffer, rotation, timestampNs);
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events.onFrameCaptured(Camera2Session.this, frame);
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frame.release();
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} else {
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events.onTextureFrameCaptured(Camera2Session.this, captureFormat.width,
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captureFormat.height, oesTextureId, transformMatrix, rotation, timestampNs);
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}
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}
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});
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Logging.d(TAG, "Camera device successfully started.");
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callback.onDone(Camera2Session.this);
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}
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// Prefers optical stabilization over software stabilization if available. Only enables one of
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// the stabilization modes at a time because having both enabled can cause strange results.
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private void chooseStabilizationMode(CaptureRequest.Builder captureRequestBuilder) {
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final int[] availableOpticalStabilization = cameraCharacteristics.get(
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CameraCharacteristics.LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION);
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if (availableOpticalStabilization != null) {
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for (int mode : availableOpticalStabilization) {
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if (mode == CaptureRequest.LENS_OPTICAL_STABILIZATION_MODE_ON) {
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captureRequestBuilder.set(CaptureRequest.LENS_OPTICAL_STABILIZATION_MODE,
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CaptureRequest.LENS_OPTICAL_STABILIZATION_MODE_ON);
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captureRequestBuilder.set(CaptureRequest.CONTROL_VIDEO_STABILIZATION_MODE,
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CaptureRequest.CONTROL_VIDEO_STABILIZATION_MODE_OFF);
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Logging.d(TAG, "Using optical stabilization.");
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return;
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}
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}
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}
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// If no optical mode is available, try software.
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final int[] availableVideoStabilization = cameraCharacteristics.get(
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CameraCharacteristics.CONTROL_AVAILABLE_VIDEO_STABILIZATION_MODES);
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for (int mode : availableVideoStabilization) {
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if (mode == CaptureRequest.CONTROL_VIDEO_STABILIZATION_MODE_ON) {
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captureRequestBuilder.set(CaptureRequest.CONTROL_VIDEO_STABILIZATION_MODE,
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CaptureRequest.CONTROL_VIDEO_STABILIZATION_MODE_ON);
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captureRequestBuilder.set(CaptureRequest.LENS_OPTICAL_STABILIZATION_MODE,
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CaptureRequest.LENS_OPTICAL_STABILIZATION_MODE_OFF);
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Logging.d(TAG, "Using video stabilization.");
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return;
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}
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}
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Logging.d(TAG, "Stabilization not available.");
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}
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private void chooseFocusMode(CaptureRequest.Builder captureRequestBuilder) {
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final int[] availableFocusModes =
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cameraCharacteristics.get(CameraCharacteristics.CONTROL_AF_AVAILABLE_MODES);
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for (int mode : availableFocusModes) {
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if (mode == CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_VIDEO) {
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captureRequestBuilder.set(
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CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_VIDEO);
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Logging.d(TAG, "Using continuous video auto-focus.");
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return;
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}
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}
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Logging.d(TAG, "Auto-focus is not available.");
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}
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}
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private class CameraCaptureCallback extends CameraCaptureSession.CaptureCallback {
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@Override
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public void onCaptureFailed(
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CameraCaptureSession session, CaptureRequest request, CaptureFailure failure) {
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Logging.d(TAG, "Capture failed: " + failure);
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}
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}
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public static void create(CreateSessionCallback callback, Events events,
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Context applicationContext, CameraManager cameraManager,
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SurfaceTextureHelper surfaceTextureHelper, MediaRecorder mediaRecorder, String cameraId,
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int width, int height, int framerate) {
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new Camera2Session(callback, events, applicationContext, cameraManager, surfaceTextureHelper,
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mediaRecorder, cameraId, width, height, framerate);
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}
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private Camera2Session(CreateSessionCallback callback, Events events, Context applicationContext,
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CameraManager cameraManager, SurfaceTextureHelper surfaceTextureHelper,
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MediaRecorder mediaRecorder, String cameraId, int width, int height, int framerate) {
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Logging.d(TAG, "Create new camera2 session on camera " + cameraId);
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videoFrameEmitTrialEnabled =
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PeerConnectionFactory.fieldTrialsFindFullName(PeerConnectionFactory.VIDEO_FRAME_EMIT_TRIAL)
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.equals(PeerConnectionFactory.TRIAL_ENABLED);
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constructionTimeNs = System.nanoTime();
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this.cameraThreadHandler = new Handler();
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this.callback = callback;
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this.events = events;
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this.applicationContext = applicationContext;
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this.cameraManager = cameraManager;
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this.surfaceTextureHelper = surfaceTextureHelper;
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this.mediaRecorderSurface = (mediaRecorder != null) ? mediaRecorder.getSurface() : null;
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this.cameraId = cameraId;
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this.width = width;
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this.height = height;
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this.framerate = framerate;
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start();
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}
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private void start() {
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checkIsOnCameraThread();
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Logging.d(TAG, "start");
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try {
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cameraCharacteristics = cameraManager.getCameraCharacteristics(cameraId);
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} catch (final CameraAccessException e) {
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reportError("getCameraCharacteristics(): " + e.getMessage());
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return;
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}
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cameraOrientation = cameraCharacteristics.get(CameraCharacteristics.SENSOR_ORIENTATION);
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isCameraFrontFacing = cameraCharacteristics.get(CameraCharacteristics.LENS_FACING)
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== CameraMetadata.LENS_FACING_FRONT;
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findCaptureFormat();
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openCamera();
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}
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private void findCaptureFormat() {
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checkIsOnCameraThread();
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Range<Integer>[] fpsRanges =
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cameraCharacteristics.get(CameraCharacteristics.CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES);
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fpsUnitFactor = Camera2Enumerator.getFpsUnitFactor(fpsRanges);
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List<CaptureFormat.FramerateRange> framerateRanges =
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Camera2Enumerator.convertFramerates(fpsRanges, fpsUnitFactor);
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List<Size> sizes = Camera2Enumerator.getSupportedSizes(cameraCharacteristics);
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Logging.d(TAG, "Available preview sizes: " + sizes);
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Logging.d(TAG, "Available fps ranges: " + framerateRanges);
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if (framerateRanges.isEmpty() || sizes.isEmpty()) {
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reportError("No supported capture formats.");
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return;
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}
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final CaptureFormat.FramerateRange bestFpsRange =
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CameraEnumerationAndroid.getClosestSupportedFramerateRange(framerateRanges, framerate);
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final Size bestSize = CameraEnumerationAndroid.getClosestSupportedSize(sizes, width, height);
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CameraEnumerationAndroid.reportCameraResolution(camera2ResolutionHistogram, bestSize);
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captureFormat = new CaptureFormat(bestSize.width, bestSize.height, bestFpsRange);
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Logging.d(TAG, "Using capture format: " + captureFormat);
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}
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private void openCamera() {
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checkIsOnCameraThread();
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Logging.d(TAG, "Opening camera " + cameraId);
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events.onCameraOpening();
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||||
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||||
try {
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cameraManager.openCamera(cameraId, new CameraStateCallback(), cameraThreadHandler);
|
||||
} catch (CameraAccessException e) {
|
||||
reportError("Failed to open camera: " + e);
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||||
return;
|
||||
}
|
||||
}
|
||||
|
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@Override
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||||
public void stop() {
|
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Logging.d(TAG, "Stop camera2 session on camera " + cameraId);
|
||||
checkIsOnCameraThread();
|
||||
if (state != SessionState.STOPPED) {
|
||||
final long stopStartTime = System.nanoTime();
|
||||
state = SessionState.STOPPED;
|
||||
stopInternal();
|
||||
final int stopTimeMs = (int) TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - stopStartTime);
|
||||
camera2StopTimeMsHistogram.addSample(stopTimeMs);
|
||||
}
|
||||
}
|
||||
|
||||
private void stopInternal() {
|
||||
Logging.d(TAG, "Stop internal");
|
||||
checkIsOnCameraThread();
|
||||
|
||||
surfaceTextureHelper.stopListening();
|
||||
|
||||
if (captureSession != null) {
|
||||
captureSession.close();
|
||||
captureSession = null;
|
||||
}
|
||||
if (surface != null) {
|
||||
surface.release();
|
||||
surface = null;
|
||||
}
|
||||
if (cameraDevice != null) {
|
||||
cameraDevice.close();
|
||||
cameraDevice = null;
|
||||
}
|
||||
|
||||
Logging.d(TAG, "Stop done");
|
||||
}
|
||||
|
||||
private void reportError(String error) {
|
||||
checkIsOnCameraThread();
|
||||
Logging.e(TAG, "Error: " + error);
|
||||
|
||||
final boolean startFailure = (captureSession == null) && (state != SessionState.STOPPED);
|
||||
state = SessionState.STOPPED;
|
||||
stopInternal();
|
||||
if (startFailure) {
|
||||
callback.onFailure(FailureType.ERROR, error);
|
||||
} else {
|
||||
events.onCameraError(this, error);
|
||||
}
|
||||
}
|
||||
|
||||
private int getDeviceOrientation() {
|
||||
int orientation = 0;
|
||||
|
||||
WindowManager wm = (WindowManager) applicationContext.getSystemService(Context.WINDOW_SERVICE);
|
||||
switch (wm.getDefaultDisplay().getRotation()) {
|
||||
case Surface.ROTATION_90:
|
||||
orientation = 90;
|
||||
break;
|
||||
case Surface.ROTATION_180:
|
||||
orientation = 180;
|
||||
break;
|
||||
case Surface.ROTATION_270:
|
||||
orientation = 270;
|
||||
break;
|
||||
case Surface.ROTATION_0:
|
||||
default:
|
||||
orientation = 0;
|
||||
break;
|
||||
}
|
||||
return orientation;
|
||||
}
|
||||
|
||||
private int getFrameOrientation() {
|
||||
int rotation = getDeviceOrientation();
|
||||
if (!isCameraFrontFacing) {
|
||||
rotation = 360 - rotation;
|
||||
}
|
||||
return (cameraOrientation + rotation) % 360;
|
||||
}
|
||||
|
||||
private void checkIsOnCameraThread() {
|
||||
if (Thread.currentThread() != cameraThreadHandler.getLooper().getThread()) {
|
||||
throw new IllegalStateException("Wrong thread");
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user