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Commit 09818c15 authored by Jean-Michel Trivi's avatar Jean-Michel Trivi
Browse files

Add AudioAttributes to stream type conversion 

Framework internal conversion for going from an AudioAttributes
 instance to a legacy stream type.

Change-Id: Ic3b7d2cf4aa0ac5255aa5897a25c78c940af9f77
parent cbaecd0f

media/java/android/media/AudioAttributes.java

+39 −0
Original line number Diff line number Diff line
@@ -524,6 +524,45 @@ public final class AudioAttributes implements Parcelable { 
        }

    }



    /** @hide */

    public static int toLegacyStreamType(AudioAttributes aa) {

        // flags to stream type mapping

        if ((aa.getFlags() & FLAG_AUDIBILITY_ENFORCED) == FLAG_AUDIBILITY_ENFORCED) {

            return AudioSystem.STREAM_SYSTEM_ENFORCED;

        }

        if ((aa.getFlags() & FLAG_SCO) == FLAG_SCO) {

            return AudioSystem.STREAM_BLUETOOTH_SCO;

        }



        // usage to stream type mapping

        switch (aa.getUsage()) {

            case USAGE_MEDIA:

            case USAGE_GAME:

            case USAGE_ASSISTANCE_ACCESSIBILITY:

            case USAGE_ASSISTANCE_NAVIGATION_GUIDANCE:

                return AudioSystem.STREAM_MUSIC;

            case USAGE_ASSISTANCE_SONIFICATION:

                return AudioSystem.STREAM_SYSTEM;

            case USAGE_VOICE_COMMUNICATION:

                return AudioSystem.STREAM_VOICE_CALL;

            case USAGE_VOICE_COMMUNICATION_SIGNALLING:

                return AudioSystem.STREAM_DTMF;

            case USAGE_ALARM:

                return AudioSystem.STREAM_ALARM;

            case USAGE_NOTIFICATION_TELEPHONY_RINGTONE:

                return AudioSystem.STREAM_RING;

            case USAGE_NOTIFICATION:

            case USAGE_NOTIFICATION_COMMUNICATION_REQUEST:

            case USAGE_NOTIFICATION_COMMUNICATION_INSTANT:

            case USAGE_NOTIFICATION_COMMUNICATION_DELAYED:

            case USAGE_NOTIFICATION_EVENT:

                return AudioSystem.STREAM_NOTIFICATION;

            case USAGE_UNKNOWN:

            default:

                return AudioSystem.STREAM_MUSIC;

        }

    }



    /** @hide */

    @IntDef({

        USAGE_UNKNOWN,