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Commit c806050a authored by Glenn Kasten's avatar Glenn Kasten
Browse files

Synchronize channel masks in AudioFormat with system/audio.h 

AudioFormat channel mask comments

Change-Id: I8b43cb58cd9d3a33bf02aa0455bbfc16ed29f9ae
parent 08c96b55

media/java/android/media/AudioFormat.java

+8 −1
Original line number Diff line number Diff line
@@ -56,7 +56,7 @@ public class AudioFormat { 
    /** Default audio channel mask */

    public static final int CHANNEL_OUT_DEFAULT = 1;



    // Channel mask definitions below are translated to the native values defined in

    // Output channel mask definitions below are translated to the native values defined in

    //  in /system/core/include/system/audio.h in the JNI code of AudioTrack

    public static final int CHANNEL_OUT_FRONT_LEFT = 0x4;

    public static final int CHANNEL_OUT_FRONT_RIGHT = 0x8;
@@ -94,17 +94,21 @@ public class AudioFormat { 
            CHANNEL_OUT_FRONT_CENTER | CHANNEL_OUT_BACK_CENTER);

    public static final int CHANNEL_OUT_5POINT1 = (CHANNEL_OUT_FRONT_LEFT | CHANNEL_OUT_FRONT_RIGHT |

            CHANNEL_OUT_FRONT_CENTER | CHANNEL_OUT_LOW_FREQUENCY | CHANNEL_OUT_BACK_LEFT | CHANNEL_OUT_BACK_RIGHT);

    // different from AUDIO_CHANNEL_OUT_7POINT1

    public static final int CHANNEL_OUT_7POINT1 = (CHANNEL_OUT_FRONT_LEFT | CHANNEL_OUT_FRONT_RIGHT |

            CHANNEL_OUT_FRONT_CENTER | CHANNEL_OUT_LOW_FREQUENCY | CHANNEL_OUT_BACK_LEFT | CHANNEL_OUT_BACK_RIGHT |

            CHANNEL_OUT_FRONT_LEFT_OF_CENTER | CHANNEL_OUT_FRONT_RIGHT_OF_CENTER);

    /** @hide */

    // matches AUDIO_CHANNEL_OUT_7POINT1

    public static final int CHANNEL_OUT_7POINT1_SURROUND = (

            CHANNEL_OUT_FRONT_LEFT | CHANNEL_OUT_FRONT_CENTER | CHANNEL_OUT_FRONT_RIGHT |

            CHANNEL_OUT_SIDE_LEFT | CHANNEL_OUT_SIDE_RIGHT |

            CHANNEL_OUT_BACK_LEFT | CHANNEL_OUT_BACK_RIGHT |

            CHANNEL_OUT_LOW_FREQUENCY);

    // CHANNEL_OUT_ALL is not yet defined; if added then it should match AUDIO_CHANNEL_OUT_ALL



    public static final int CHANNEL_IN_DEFAULT = 1;

    // These directly match native

    public static final int CHANNEL_IN_LEFT = 0x4;

    public static final int CHANNEL_IN_RIGHT = 0x8;

    public static final int CHANNEL_IN_FRONT = 0x10;
@@ -121,5 +125,8 @@ public class AudioFormat { 
    public static final int CHANNEL_IN_VOICE_DNLINK = 0x8000;

    public static final int CHANNEL_IN_MONO = CHANNEL_IN_FRONT;

    public static final int CHANNEL_IN_STEREO = (CHANNEL_IN_LEFT | CHANNEL_IN_RIGHT);

    /** @hide */

    public static final int CHANNEL_IN_FRONT_BACK = CHANNEL_IN_FRONT | CHANNEL_IN_BACK;

    // CHANNEL_IN_ALL is not yet defined; if added then it should match AUDIO_CHANNEL_IN_ALL



}