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Commit 7958358d authored by Andy Hung's avatar Andy Hung
Browse files

AudioSystem: Inform AudioFlinger of total memory 

To better allocate per-client memory blocks.

Test: Debug logging
Bug: 64161002
Change-Id: I389bdea250a74322fab616f1009f51c6c73aef07
parent 3a29ce00

core/jni/android_media_AudioSystem.cpp

+4 −3
Original line number Diff line number Diff line
@@ -608,9 +608,10 @@ android_media_AudioSystem_getOutputLatency(JNIEnv *env, jobject clazz, jint stre 
}



static jint

android_media_AudioSystem_setLowRamDevice(JNIEnv *env, jobject clazz, jboolean isLowRamDevice)

android_media_AudioSystem_setLowRamDevice(

        JNIEnv *env, jobject clazz, jboolean isLowRamDevice, jlong totalMemory)

{

    return (jint) AudioSystem::setLowRamDevice((bool) isLowRamDevice);

    return (jint) AudioSystem::setLowRamDevice((bool) isLowRamDevice, (int64_t) totalMemory);

}



static jint
@@ -1801,7 +1802,7 @@ static const JNINativeMethod gMethods[] = { 
    {"getPrimaryOutputSamplingRate", "()I", (void *)android_media_AudioSystem_getPrimaryOutputSamplingRate},

    {"getPrimaryOutputFrameCount",   "()I", (void *)android_media_AudioSystem_getPrimaryOutputFrameCount},

    {"getOutputLatency",    "(I)I",     (void *)android_media_AudioSystem_getOutputLatency},

    {"setLowRamDevice",     "(Z)I",     (void *)android_media_AudioSystem_setLowRamDevice},

    {"setLowRamDevice",     "(ZJ)I",    (void *)android_media_AudioSystem_setLowRamDevice},

    {"checkAudioFlinger",    "()I",     (void *)android_media_AudioSystem_checkAudioFlinger},

    {"listAudioPorts",      "(Ljava/util/ArrayList;[I)I",

                                                (void *)android_media_AudioSystem_listAudioPorts},

media/java/android/media/AudioSystem.java

+1 −1
Original line number Diff line number Diff line
@@ -792,7 +792,7 @@ public class AudioSystem 
    public static native int getPrimaryOutputFrameCount();

    public static native int getOutputLatency(int stream);



    public static native int setLowRamDevice(boolean isLowRamDevice);

    public static native int setLowRamDevice(boolean isLowRamDevice, long totalMemory);

    public static native int checkAudioFlinger();



    public static native int listAudioPorts(ArrayList<AudioPort> ports, int[] generation);

services/core/java/com/android/server/audio/AudioService.java

+13 −1
Original line number Diff line number Diff line
@@ -6583,7 +6583,19 @@ public class AudioService extends IAudioService.Stub 
    // Inform AudioFlinger of our device's low RAM attribute

    private static void readAndSetLowRamDevice()

    {

        int status = AudioSystem.setLowRamDevice(ActivityManager.isLowRamDeviceStatic());

        boolean isLowRamDevice = ActivityManager.isLowRamDeviceStatic();

        long totalMemory = 1024 * 1024 * 1024; // 1GB is the default if ActivityManager fails.



        try {

            final ActivityManager.MemoryInfo info = new ActivityManager.MemoryInfo();

            ActivityManager.getService().getMemoryInfo(info);

            totalMemory = info.totalMem;

        } catch (RemoteException e) {

            Log.w(TAG, "Cannot obtain MemoryInfo from ActivityManager, assume low memory device");

            isLowRamDevice = true;

        }



        final int status = AudioSystem.setLowRamDevice(isLowRamDevice, totalMemory);

        if (status != 0) {

            Log.w(TAG, "AudioFlinger informed of device's low RAM attribute; status " + status);

        }