Add support for media recorders in Camera1Capturer.

webrtc/sdk/android/src/java/org/webrtc/Camera1Session.java

Index: webrtc/sdk/android/src/java/org/webrtc/Camera1Session.java
diff --git a/webrtc/sdk/android/src/java/org/webrtc/Camera1Session.java b/webrtc/sdk/android/src/java/org/webrtc/Camera1Session.java
index 77faa508c4d3549a489b1c5d76975833805bf02e..d1950690c34f7f1b10a413e6ab1ca17a42621088 100644
--- a/webrtc/sdk/android/src/java/org/webrtc/Camera1Session.java
+++ b/webrtc/sdk/android/src/java/org/webrtc/Camera1Session.java
@@ -11,6 +11,7 @@
 package org.webrtc;
 
 import android.content.Context;
+import android.media.MediaRecorder;
 import android.os.Handler;
 import android.os.SystemClock;
 import android.view.Surface;
@@ -52,8 +53,8 @@ class Camera1Session implements CameraSession {
 
   public static void create(final CreateSessionCallback callback, final Events events,
       final boolean captureToTexture, final Context applicationContext,
-      final SurfaceTextureHelper surfaceTextureHelper, final int cameraId, final int width,
-      final int height, final int framerate) {
+      final SurfaceTextureHelper surfaceTextureHelper, final MediaRecorder mediaRecorder,
+      final int cameraId, final int width, final int height, final int framerate) {
     final long constructionTimeNs = System.nanoTime();
     Logging.d(TAG, "Open camera " + cameraId);
     events.onCameraOpening();
@@ -96,8 +97,9 @@ class Camera1Session implements CameraSession {
     // Calculate orientation manually and send it as CVO insted.
     camera.setDisplayOrientation(0 /* degrees */);
 
-    callback.onDone(new Camera1Session(events, captureToTexture, applicationContext,
-        surfaceTextureHelper, cameraId, camera, info, captureFormat, constructionTimeNs));
+    callback.onDone(
+        new Camera1Session(events, captureToTexture, applicationContext, surfaceTextureHelper,
+            mediaRecorder, cameraId, camera, info, captureFormat, constructionTimeNs));
   }
 
   private static void updateCameraParameters(android.hardware.Camera camera,
@@ -145,9 +147,9 @@ class Camera1Session implements CameraSession {
   }
 
   private Camera1Session(Events events, boolean captureToTexture, Context applicationContext,
-      SurfaceTextureHelper surfaceTextureHelper, int cameraId, android.hardware.Camera camera,
-      android.hardware.Camera.CameraInfo info, CaptureFormat captureFormat,
-      long constructionTimeNs) {
+      SurfaceTextureHelper surfaceTextureHelper, MediaRecorder mediaRecorder, int cameraId,
+      android.hardware.Camera camera, android.hardware.Camera.CameraInfo info,
+      CaptureFormat captureFormat, long constructionTimeNs) {
     Logging.d(TAG, "Create new camera1 session on camera " + cameraId);
 
     this.cameraThreadHandler = new Handler();
@@ -162,6 +164,11 @@ class Camera1Session implements CameraSession {
     this.constructionTimeNs = constructionTimeNs;
 
     startCapturing();
+
+    if (mediaRecorder != null) {
+      camera.unlock();
+      mediaRecorder.setCamera(camera);
+    }
   }
 
   @Override