Use back-facing camera as default in camera/camcorder profile.do not merge

bug:3173302
Change-Id: I11eaed32bb393206b560834d52c412f3e5a1a7d9

media/java/android/media/CamcorderProfile.java

@@ -16,6 +16,9 @@
 
 package android.media;
 
+import android.hardware.Camera;
+import android.hardware.Camera.CameraInfo;
+
 /**
  * The CamcorderProfile class is used to retrieve the
  * predefined camcorder profile settings for camcorder applications.
@@ -119,12 +122,21 @@ public class CamcorderProfile
     public int audioChannels;
 
     /**
-     * Returns the camcorder profile for the default camera at the given
-     * quality level.
+     * Returns the camcorder profile for the first back-facing camera on the
+     * device at the given quality level. If the device has no back-facing
+     * camera, this returns null.
      * @param quality the target quality level for the camcorder profile
      */
     public static CamcorderProfile get(int quality) {
-        return get(0, quality);
+        int numberOfCameras = Camera.getNumberOfCameras();
+        CameraInfo cameraInfo = new CameraInfo();
+        for (int i = 0; i < numberOfCameras; i++) {
+            Camera.getCameraInfo(i, cameraInfo);
+            if (cameraInfo.facing == CameraInfo.CAMERA_FACING_BACK) {
+                return get(i, quality);
+            }
+        }
+        return null;
     }
 
     /**

media/java/android/media/CameraProfile.java

@@ -16,6 +16,9 @@
 
 package android.media;
 
+import android.hardware.Camera;
+import android.hardware.Camera.CameraInfo;
+
 import java.util.Arrays;
 import java.util.HashMap;
 
@@ -46,12 +49,21 @@ public class CameraProfile
     /**
      * Returns a pre-defined still image capture (jpeg) quality level
      * used for the given quality level in the Camera application for
-     * the default camera.
+     * the first back-facing camera on the device. If the device has no
+     * back-facing camera, this returns 0.
      *
      * @param quality The target quality level
      */
     public static int getJpegEncodingQualityParameter(int quality) {
-        return getJpegEncodingQualityParameter(0, quality);
+        int numberOfCameras = Camera.getNumberOfCameras();
+        CameraInfo cameraInfo = new CameraInfo();
+        for (int i = 0; i < numberOfCameras; i++) {
+            Camera.getCameraInfo(i, cameraInfo);
+            if (cameraInfo.facing == CameraInfo.CAMERA_FACING_BACK) {
+                return getJpegEncodingQualityParameter(i, quality);
+            }
+        }
+        return 0;
     }
 
     /**