Merge "MediaPlayer2: use AudioManager.isOffloadedPlaybackSupported"

media/java/android/media/MediaPlayer2Utils.java

@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.media;
+
+/**
+ * Helper class used by native code to reduce JNI calls from native side.
+ * @hide
+ */
+public class MediaPlayer2Utils {
+    /**
+     * Returns whether audio offloading is supported for the given audio format.
+     *
+     * @param encoding the type of encoding defined in {@link AudioFormat}
+     * @param sampleRate the sampling rate of the stream
+     * @param channelMask the channel mask defined in {@link AudioFormat}
+     */
+    // @CalledByNative
+    public static boolean isOffloadedAudioPlaybackSupported(
+            int encoding, int sampleRate, int channelMask) {
+        final AudioFormat format = new AudioFormat.Builder()
+                .setEncoding(encoding)
+                .setSampleRate(sampleRate)
+                .setChannelMask(channelMask)
+                .build();
+        return AudioManager.isOffloadedPlaybackSupported(format);
+    }
+}