Call recorder: improve output quality

Android.mk

@@ -79,6 +79,8 @@ LOCAL_SRC_FILES += $(call all-proto-files-under, $(BASE_DIR))
 LOCAL_SRC_FILES += $(call all-Iaidl-files-under, $(BASE_DIR))
 LOCAL_SRC_FILES := $(filter-out $(EXCLUDE_FILES),$(LOCAL_SRC_FILES))
 
+LOCAL_AIDL_INCLUDES := $(LOCAL_PATH)/java
+
 LOCAL_PROTOC_FLAGS := --proto_path=$(LOCAL_PATH)
 
 LOCAL_RESOURCE_DIR := $(addprefix $(LOCAL_PATH)/, $(RES_DIRS))

assets/quantum/res/drawable/quantum_ic_record_white_36.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:height="36dp"
+    android:width="36dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M19,12C19,15.86 15.86,19 12,19C8.14,19 5,15.86 5,12C5,8.14 8.14,5 12,5C15.86,5 19,8.14 19,12Z" />
+</vector>

java/com/android/dialer/app/res/mipmap-anydpi/ic_launcher.xml

@@ -2,4 +2,5 @@
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
     <background android:drawable="@color/ic_launcher_background" />
     <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
 </adaptive-icon>

java/com/android/dialer/app/res/mipmap-anydpi/ic_launcher_round.xml

@@ -2,4 +2,5 @@
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
     <background android:drawable="@color/ic_launcher_background" />
     <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
 </adaptive-icon>

java/com/android/dialer/app/res/values/ids.xml

@@ -25,5 +25,6 @@
   <item name="context_menu_report_not_spam" type="id"/>
   <item name="context_menu_delete" type="id"/>
   <item name="settings_header_sounds_and_vibration" type="id"/>
+  <item name="settings_header_call_recording" type="id"/>
   <item name="block_id" type="id"/>
 </resources>

java/com/android/dialer/app/res/values/strings_ext.xml

@@ -0,0 +1,49 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2013-2014 The CyanogenMod Project
+     Copyright (C) 2018 The LineageOS Project
+
+     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.
+-->
+<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+    <string name="call_recording_header_title">Call recording</string>
+
+    <string name="call_recording_output_format_title">Audio output format</string>
+
+    <string-array name="call_recording_output_format_entries" translatable="false">
+        <item>AAC in MPEG-4 container</item>
+        <item>AMR-WB</item>
+    </string-array>
+
+    <string-array name="call_recording_output_format_values" translatable="false">
+        <item>"0"</item>
+        <item>"1"</item>
+    </string-array>
+
+    <string name="call_recording_output_format_default" translatable="false">"0"</string>
+
+    <string name="call_recording_audio_source_title">Audio source</string>
+
+    <string-array name="call_recording_audio_source_entries" translatable="false">
+        <item>MIC (1)</item>
+        <item>VOICE_CALL (4)</item>
+    </string-array>
+
+    <string-array name="call_recording_audio_source_values" translatable="false">
+        <item>"1"</item>
+        <item>"4"</item>
+    </string-array>
+
+    <string name="call_recording_audio_source_default">"4"</string>
+
+</resources>

java/com/android/dialer/app/res/xml/call_recording_settings.xml

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
+
+  <ListPreference
+    android:key="call_recording_output_format"
+    android:title="@string/call_recording_output_format_title"
+    android:summary="%s"
+    android:entries="@array/call_recording_output_format_entries"
+    android:entryValues="@array/call_recording_output_format_values"
+    android:defaultValue="@string/call_recording_output_format_default" />
+
+  <ListPreference
+    android:key="call_recording_audio_source"
+    android:title="@string/call_recording_audio_source_title"
+    android:summary="%s"
+    android:entries="@array/call_recording_audio_source_entries"
+    android:entryValues="@array/call_recording_audio_source_values"
+    android:defaultValue="@string/call_recording_audio_source_default" />
+
+  <Preference
+    android:key="call_recording_warning"
+    android:persistent="false"
+    android:title="@string/call_recording_warning_settings_title"
+    android:summary="@string/recording_warning_text" />
+
+</PreferenceScreen>

java/com/android/dialer/app/settings/CallRecordingSettingsFragment.java

@@ -0,0 +1,15 @@
+package com.android.dialer.app.settings;
+
+import android.os.Bundle;
+import android.preference.PreferenceFragment;
+import com.android.dialer.app.R;
+import com.android.dialer.callrecord.impl.CallRecorderService;
+
+public class CallRecordingSettingsFragment extends PreferenceFragment {
+
+  @Override
+  public void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+    addPreferencesFromResource(R.xml.call_recording_settings);
+  }
+}

java/com/android/dialer/app/settings/DialerSettingsActivity.java

@@ -105,6 +105,12 @@ public void onBuildHeaders(List<Header> target) {
     soundSettingsHeader.id = R.id.settings_header_sounds_and_vibration;
     target.add(soundSettingsHeader);
 
+    Header callRecordingHeader = new Header();
+    callRecordingHeader.titleRes = R.string.call_recording_header_title;
+    callRecordingHeader.fragment = CallRecordingSettingsFragment.class.getName();
+    callRecordingHeader.id = R.id.settings_header_call_recording;
+    target.add(callRecordingHeader);
+
     Header quickResponseSettingsHeader = new Header();
     Intent quickResponseSettingsIntent =
         new Intent(TelecomManager.ACTION_SHOW_RESPOND_VIA_SMS_SETTINGS);

java/com/android/dialer/callrecord/AndroidManifest.xml

@@ -0,0 +1,26 @@
+<!-- Copyright (C) 2018 The LineageOS Project
+
+     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.
+-->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+  package="com.android.dialer">
+
+  <uses-permission android:name="android.permission.RECORD_AUDIO" />
+  <uses-permission android:name="android.permission.CAPTURE_AUDIO_OUTPUT" />
+
+  <application>
+    <service android:name="com.android.dialer.callrecord.impl.CallRecorderService"
+        android:process="com.android.incallui" />
+  </application>
+</manifest>

java/com/android/dialer/callrecord/CallRecording.aidl

@@ -0,0 +1,3 @@
+package com.android.dialer.callrecord;
+
+parcelable CallRecording;

java/com/android/dialer/callrecord/CallRecording.java

@@ -0,0 +1,107 @@
+/*
+ * Copyright (C) 2014 The CyanogenMod Project
+ *
+ * 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.
+ */
+
+package com.android.dialer.callrecord;
+
+import android.content.ContentValues;
+import android.os.Environment;
+import android.os.Parcel;
+import android.os.Parcelable;
+import android.provider.MediaStore;
+import android.text.TextUtils;
+import android.webkit.MimeTypeMap;
+
+import java.io.File;
+
+public final class CallRecording implements Parcelable {
+  public String phoneNumber;
+  public long creationTime;
+  public String fileName;
+  public long startRecordingTime;
+  public long mediaId;
+
+  public static final Parcelable.Creator<CallRecording> CREATOR =
+      new Parcelable.Creator<CallRecording>() {
+    @Override
+    public CallRecording createFromParcel(Parcel in) {
+      return new CallRecording(in);
+    }
+
+    @Override
+    public CallRecording[] newArray(int size) {
+      return new CallRecording[size];
+    }
+  };
+
+  public CallRecording(String phoneNumber, long creationTime,
+      String fileName, long startRecordingTime, long mediaId) {
+    this.phoneNumber = phoneNumber;
+    this.creationTime = creationTime;
+    this.fileName = fileName;
+    this.startRecordingTime = startRecordingTime;
+    this.mediaId = mediaId;
+  }
+
+  public CallRecording(Parcel in) {
+    phoneNumber = in.readString();
+    creationTime = in.readLong();
+    fileName = in.readString();
+    startRecordingTime = in.readLong();
+    mediaId = in.readLong();
+  }
+
+  public static ContentValues generateMediaInsertValues(String fileName, long creationTime) {
+    final ContentValues cv = new ContentValues(5);
+
+    cv.put(MediaStore.Audio.Media.RELATIVE_PATH, "Recordings/CallRecordings");
+    cv.put(MediaStore.Audio.Media.DISPLAY_NAME, fileName);
+    cv.put(MediaStore.Audio.Media.DATE_TAKEN, creationTime);
+    cv.put(MediaStore.Audio.Media.IS_PENDING, 1);
+
+    final String extension = MimeTypeMap.getFileExtensionFromUrl(fileName);
+    final String mime = !TextUtils.isEmpty(extension)
+        ? MimeTypeMap.getSingleton().getMimeTypeFromExtension(extension) : "audio/*";
+    cv.put(MediaStore.Audio.Media.MIME_TYPE, mime);
+
+    return cv;
+  }
+
+  public static ContentValues generateCompletedValues() {
+    final ContentValues cv = new ContentValues(1);
+    cv.put(MediaStore.Audio.Media.IS_PENDING, 0);
+    return cv;
+  }
+
+  @Override
+  public void writeToParcel(Parcel out, int flags) {
+    out.writeString(phoneNumber);
+    out.writeLong(creationTime);
+    out.writeString(fileName);
+    out.writeLong(startRecordingTime);
+    out.writeLong(mediaId);
+  }
+
+  @Override
+  public int describeContents() {
+    return 0;
+  }
+
+  @Override
+  public String toString() {
+    return "phoneNumber=" + phoneNumber + ", creationTime=" + creationTime +
+        ", fileName=" + fileName + ", startRecordingTime=" + startRecordingTime;
+  }
+}

java/com/android/dialer/callrecord/ICallRecorderService.aidl

@@ -0,0 +1,37 @@
+package com.android.dialer.callrecord;
+
+import com.android.dialer.callrecord.CallRecording;
+
+/**
+ * Service for recording phone calls.  Only one recording may be active at a time
+ * (i.e. every call to startRecording should be followed by a call to stopRecording).
+ */
+interface ICallRecorderService {
+  /**
+   * Start a recording.
+   *
+   * @return true if recording started successfully
+   */
+  boolean startRecording(String phoneNumber, long creationTime);
+
+  /**
+   * stops the current recording
+   *
+   * @return call recording data including the output filename
+   */
+  CallRecording stopRecording();
+
+  /**
+   * Recording status
+   *
+   * @return true if there is an active recording
+   */
+  boolean isRecording();
+
+  /**
+   * Get recording currently in progress
+   *
+   * @return call recording object
+   */
+  CallRecording getActiveRecording();
+}