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Commit 4c19137b authored by Andy Hung's avatar Andy Hung
Browse files

AudioTrack: Add getAudioAttributes public method 

Bug: 116735841
Test: AudioTrackTest#testBuilderAttributesStream
Change-Id: I09c69ed42a7a76d3d85694dd120a54f5567fb164
parent 909810d4

api/current.txt

+1 −0
Original line number Diff line number Diff line
@@ -23250,6 +23250,7 @@ package android.media { 
    method public android.media.VolumeShaper createVolumeShaper(android.media.VolumeShaper.Configuration);

    method protected void finalize();

    method public void flush();

    method public android.media.AudioAttributes getAudioAttributes();

    method public int getAudioFormat();

    method public int getAudioSessionId();

    method public int getBufferCapacityInFrames();

media/java/android/media/AudioTrack.java

+23 −0
Original line number Diff line number Diff line
@@ -370,6 +370,10 @@ public class AudioTrack extends PlayerBase 
     * @see AudioFormat#ENCODING_PCM_FLOAT

     */

    private int mAudioFormat;   // initialized by all constructors via audioParamCheck()

    /**

     * The AudioAttributes used in configuration.

     */

    private AudioAttributes mConfiguredAudioAttributes;

    /**

     * Audio session ID

     */
@@ -570,6 +574,8 @@ public class AudioTrack extends PlayerBase 
        super(attributes, AudioPlaybackConfiguration.PLAYER_TYPE_JAM_AUDIOTRACK);

        // mState already == STATE_UNINITIALIZED



        mConfiguredAudioAttributes = attributes; // object copy not needed, immutable.



        if (format == null) {

            throw new IllegalArgumentException("Illegal null AudioFormat");

        }
@@ -1300,6 +1306,23 @@ public class AudioTrack extends PlayerBase 
        return native_get_playback_params();

    }



    /**

     * Returns the {@link AudioAttributes} used in configuration.

     * If a {@code streamType} is used instead of an {@code AudioAttributes}

     * to configure the AudioTrack

     * (the use of {@code streamType} for configuration is deprecated),

     * then the {@code AudioAttributes}

     * equivalent to the {@code streamType} is returned.

     * @return The {@code AudioAttributes} used to configure the AudioTrack.

     * @throws IllegalStateException If the track is not initialized.

     */

    public @NonNull AudioAttributes getAudioAttributes() {

        if (mState == STATE_UNINITIALIZED || mConfiguredAudioAttributes == null) {

            throw new IllegalStateException("track not initialized");

        }

        return mConfiguredAudioAttributes;

    }



    /**

     * Returns the configured audio data encoding. See {@link AudioFormat#ENCODING_PCM_8BIT},

     * {@link AudioFormat#ENCODING_PCM_16BIT}, and {@link AudioFormat#ENCODING_PCM_FLOAT}.