From d9b8adedca8c0641c4aa17aad2a4e04847b7d1d7 Mon Sep 17 00:00:00 2001 From: bengris32 Date: Wed, 20 Jul 2022 23:37:58 +0530 Subject: [PATCH] breeze: Introduce Mediatek In-Call Service * My attempt at fixing in call gain control on MediaTek devices. * It attempts to replicate what the stock MediaTek framework does when controlling the volume of the earpiece speaker, since MTK's audio HAL is not able to set the gain of the speaker from the values sent by AOSP framework. [LinkBoi00] Rebrand to Mediatek In-Call Service Change-Id: I43f727f6fb73a0d38457a41a8361653d1d00e220 Signed-off-by: LinkBoi00 --- app/InCallService/Android.bp | 31 ++++++++++++ app/InCallService/AndroidManifest.xml | 25 ++++++++++ app/InCallService/res/values/strings.xml | 4 ++ .../OnLockedBootCompleteReceiver.java | 19 +++++++ .../incallservice/VolumeChangeReceiver.java | 50 +++++++++++++++++++ .../incallservice/VolumeChangeService.java | 39 +++++++++++++++ device.mk | 3 ++ 7 files changed, 171 insertions(+) create mode 100644 app/InCallService/Android.bp create mode 100644 app/InCallService/AndroidManifest.xml create mode 100644 app/InCallService/res/values/strings.xml create mode 100644 app/InCallService/src/org/lineageos/mediatek/incallservice/OnLockedBootCompleteReceiver.java create mode 100644 app/InCallService/src/org/lineageos/mediatek/incallservice/VolumeChangeReceiver.java create mode 100644 app/InCallService/src/org/lineageos/mediatek/incallservice/VolumeChangeService.java diff --git a/app/InCallService/Android.bp b/app/InCallService/Android.bp new file mode 100644 index 0000000..649bdc0 --- /dev/null +++ b/app/InCallService/Android.bp @@ -0,0 +1,31 @@ +/* + * Copyright (C) 2022 bengris32 + * Copyright (C) 2022 LineageOS + * + * 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. + */ + +android_app { + name: "MtkInCallService", + + srcs: ["src/**/*.java"], + resource_dirs: ["res"], + + certificate: "platform", + platform_apis: true, + privileged: true, + + optimize: { + enabled: false, + } +} diff --git a/app/InCallService/AndroidManifest.xml b/app/InCallService/AndroidManifest.xml new file mode 100644 index 0000000..cb5c2bc --- /dev/null +++ b/app/InCallService/AndroidManifest.xml @@ -0,0 +1,25 @@ + + + + + + + + + + + + + + diff --git a/app/InCallService/res/values/strings.xml b/app/InCallService/res/values/strings.xml new file mode 100644 index 0000000..2be002f --- /dev/null +++ b/app/InCallService/res/values/strings.xml @@ -0,0 +1,4 @@ + + + Mediatek In-Call Service + diff --git a/app/InCallService/src/org/lineageos/mediatek/incallservice/OnLockedBootCompleteReceiver.java b/app/InCallService/src/org/lineageos/mediatek/incallservice/OnLockedBootCompleteReceiver.java new file mode 100644 index 0000000..218f437 --- /dev/null +++ b/app/InCallService/src/org/lineageos/mediatek/incallservice/OnLockedBootCompleteReceiver.java @@ -0,0 +1,19 @@ +package org.lineageos.mediatek.incallservice; + +import android.content.BroadcastReceiver; +import android.content.Intent; +import android.content.Context; + +import android.util.Log; + +public class OnLockedBootCompleteReceiver extends BroadcastReceiver { + private static final String LOG_TAG = "MediatekInCallService"; + + @Override + public void onReceive(final Context context, Intent intent) { + Log.i(LOG_TAG, "onBoot"); + + Intent sIntent = new Intent(context, VolumeChangeService.class); + context.startService(sIntent); + } +} diff --git a/app/InCallService/src/org/lineageos/mediatek/incallservice/VolumeChangeReceiver.java b/app/InCallService/src/org/lineageos/mediatek/incallservice/VolumeChangeReceiver.java new file mode 100644 index 0000000..b95fb01 --- /dev/null +++ b/app/InCallService/src/org/lineageos/mediatek/incallservice/VolumeChangeReceiver.java @@ -0,0 +1,50 @@ +package org.lineageos.mediatek.incallservice; + +import android.content.Intent; +import android.content.Context; +import android.content.BroadcastReceiver; + +import android.media.AudioManager; +import android.media.AudioSystem; +import android.media.AudioDeviceInfo; + +import android.util.Log; + +public class VolumeChangeReceiver extends BroadcastReceiver { + public static final String LOG_TAG = "MediatekInCallService"; + + private AudioManager mAudioManager; + + public VolumeChangeReceiver(Context context) { + mAudioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE); + } + + @Override + public void onReceive(Context context, Intent intent) { + int streamType = intent.getIntExtra(AudioManager.EXTRA_VOLUME_STREAM_TYPE, -1); + if (streamType == AudioSystem.STREAM_VOICE_CALL) { + AudioDeviceInfo callDevice = mAudioManager.getCommunicationDevice(); + if (callDevice.getInternalType() != AudioDeviceInfo.TYPE_BUILTIN_EARPIECE) { + // Device is not the built in earpiece, we don't need to do anything. + return; + } + + // Start building parameters + String parameters = "volumeDevice=" + (callDevice.getId() - 1) + ";"; + int volumeIndex = intent.getIntExtra(AudioManager.EXTRA_VOLUME_STREAM_VALUE, -1); + if (volumeIndex < 0) { + Log.w(LOG_TAG, "Could not get volumeIndex!"); + return; + } + + // Limit volumeIndex to a max of 7 since that's the size of + // MediaTek's gain table. + parameters += "volumeIndex=" + Math.min(7, volumeIndex) + ";"; + parameters += "volumeStreamType=" + streamType; + + // Set gain parameters + Log.d(LOG_TAG, "Setting audio parameters: " + parameters); + AudioSystem.setParameters(parameters); + } + } +} diff --git a/app/InCallService/src/org/lineageos/mediatek/incallservice/VolumeChangeService.java b/app/InCallService/src/org/lineageos/mediatek/incallservice/VolumeChangeService.java new file mode 100644 index 0000000..e15f47f --- /dev/null +++ b/app/InCallService/src/org/lineageos/mediatek/incallservice/VolumeChangeService.java @@ -0,0 +1,39 @@ +package org.lineageos.mediatek.incallservice; + +import android.media.AudioManager; + +import android.content.Intent; +import android.content.IntentFilter; +import android.content.Context; +import android.app.Service; +import android.os.IBinder; + +import android.util.Log; + +public class VolumeChangeService extends Service { + public static final String LOG_TAG = "MediatekInCallService"; + + private Context mContext; + private VolumeChangeReceiver mVolumeChangeReceiver; + + @Override + public IBinder onBind(Intent intent) { + return null; + } + + @Override + public void onDestroy() { + super.onDestroy(); + } + + @Override + public int onStartCommand(Intent intent, int flags, int startid) { + mContext = this; + mVolumeChangeReceiver = new VolumeChangeReceiver(mContext); + + Log.i(LOG_TAG, "Service is starting..."); + this.registerReceiver(mVolumeChangeReceiver, + new IntentFilter(AudioManager.VOLUME_CHANGED_ACTION)); + return START_STICKY; + } +} diff --git a/device.mk b/device.mk index 81dfca8..28ff58c 100644 --- a/device.mk +++ b/device.mk @@ -20,6 +20,9 @@ PRODUCT_PACKAGES += \ libaudiopreprocessing \ libtinycompress +PRODUCT_PACKAGES += \ + MtkInCallService + PRODUCT_COPY_FILES += \ $(LOCAL_PATH)/audio/audio_device.xml:$(TARGET_COPY_OUT_VENDOR)/etc/audio_device.xml \ $(LOCAL_PATH)/audio/audio_effects.xml:$(TARGET_COPY_OUT_VENDOR)/etc/audio_effects.xml \