Add Introspection API to retrieve AudioProductStrategies (c01fa3a7) · Commits · e / os / android_frameworks_base

api/system-current.txt

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		@@ -3589,6 +3589,28 @@ package android.media.audiopolicy {
		method public android.media.audiopolicy.AudioPolicy.Builder setLooper(@NonNull android.os.Looper) throws java.lang.IllegalArgumentException;
		}

		public final class AudioProductStrategies implements java.lang.Iterable<android.media.audiopolicy.AudioProductStrategy> android.os.Parcelable {
		ctor public AudioProductStrategies();
		method public int describeContents();
		method @NonNull public android.media.AudioAttributes getAudioAttributesForLegacyStreamType(int);
		method @NonNull public android.media.AudioAttributes getAudioAttributesForProductStrategy(@NonNull android.media.audiopolicy.AudioProductStrategy);
		method @Nullable public android.media.audiopolicy.AudioProductStrategy getById(int);
		method public int getLegacyStreamTypeForAudioAttributes(@NonNull android.media.AudioAttributes);
		method public java.util.Iterator<android.media.audiopolicy.AudioProductStrategy> iterator();
		method public int size();
		method public void writeToParcel(@NonNull android.os.Parcel, int);
		field public static final android.os.Parcelable.Creator<android.media.audiopolicy.AudioProductStrategies> CREATOR;
		}

		public final class AudioProductStrategy implements android.os.Parcelable {
		method public int describeContents();
		method @NonNull public android.media.AudioAttributes getAudioAttributes();
		method public int getId();
		method @NonNull public String name();
		method public void writeToParcel(@NonNull android.os.Parcel, int);
		field public static final android.os.Parcelable.Creator<android.media.audiopolicy.AudioProductStrategy> CREATOR;
		}

		}

		package android.media.session {

core/jni/Android.bp

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		@@ -163,6 +163,7 @@ cc_library_shared {
		"android_media_AudioSystem.cpp",
		"android_media_AudioTrack.cpp",
		"android_media_AudioAttributes.cpp",
		"android_media_AudioProductStrategies.cpp",
		"android_media_DeviceCallback.cpp",
		"android_media_JetPlayer.cpp",
		"android_media_MediaMetricsJNI.cpp",

core/jni/AndroidRuntime.cpp

+2 −0

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		@@ -109,6 +109,7 @@ extern int register_android_media_AudioRecord(JNIEnv *env);
		extern int register_android_media_AudioSystem(JNIEnv *env);
		extern int register_android_media_AudioTrack(JNIEnv *env);
		extern int register_android_media_AudioAttributes(JNIEnv *env);
		extern int register_android_media_AudioProductStrategies(JNIEnv *env);
		extern int register_android_media_MicrophoneInfo(JNIEnv *env);
		extern int register_android_media_JetPlayer(JNIEnv *env);
		extern int register_android_media_ToneGenerator(JNIEnv *env);
		@@ -1490,6 +1491,7 @@ static const RegJNIRec gRegJNI[] = {
		REG_JNI(register_android_media_AudioRecord),
		REG_JNI(register_android_media_AudioTrack),
		REG_JNI(register_android_media_AudioAttributes),
		REG_JNI(register_android_media_AudioProductStrategies),
		REG_JNI(register_android_media_JetPlayer),
		REG_JNI(register_android_media_MicrophoneInfo),
		REG_JNI(register_android_media_RemoteDisplay),

core/jni/android_media_AudioProductStrategies.cpp

0 → 100644

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Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2018 The Android Open Source 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.
		*/

		//#define LOG_NDEBUG 0

		#define LOG_TAG "AudioProductStrategies-JNI"

		#include <inttypes.h>
		#include <jni.h>
		#include <nativehelper/JNIHelp.h>
		#include "core_jni_helpers.h"

		#include <utils/Log.h>
		#include <vector>

		#include <media/AudioSystem.h>
		#include <media/AudioPolicy.h>

		#include <nativehelper/ScopedUtfChars.h>

		#include "android_media_AudioAttributes.h"
		#include "android_media_AudioErrors.h"

		// ----------------------------------------------------------------------------

		using namespace android;

		// ----------------------------------------------------------------------------
		static const char* const kClassPathName = "android/media/audiopolicy/AudioProductStrategies";
		static const char* const kAudioProductStrategyClassPathName =
		"android/media/audiopolicy/AudioProductStrategy";

		static const char* const kAudioAttributesGroupsClassPathName =
		"android/media/audiopolicy/AudioProductStrategy$AudioAttributesGroup";

		static jclass gAudioProductStrategyClass;
		static jmethodID gAudioProductStrategyCstor;
		static struct {
		jfieldID mAudioAttributesGroups;
		jfieldID mName;
		jfieldID mId;
		} gAudioProductStrategyFields;

		static jclass gAudioAttributesGroupClass;
		static jmethodID gAudioAttributesGroupCstor;
		static struct {
		jfieldID mGroupId;
		jfieldID mLegacyStreamType;
		jfieldID mAudioAttributes;
		} gAudioAttributesGroupsFields;

		static jclass gArrayListClass;
		static struct {
		jmethodID add;
		jmethodID toArray;
		} gArrayListMethods;


		static jint convertAudioProductStrategiesFromNative(
		JNIEnv env, jobject jAudioStrategy, const AudioProductStrategy &strategy)
		{
		jint jStatus = (jint)AUDIO_JAVA_SUCCESS;
		jobjectArray jAudioAttributesGroups = NULL;
		jobjectArray jAudioAttributes = NULL;
		jobject jAudioAttribute = NULL;
		jstring jName = NULL;
		jint jStrategyId = NULL;
		jint numAttributesGroups;
		size_t indexGroup = 0;

		jName = env->NewStringUTF(strategy.getName().c_str());
		jStrategyId = static_cast<jint>(strategy.getId());

		// Audio Attributes Group array
		std::map<int, std::vector<AudioAttributes> > groups;
		for (const auto &attr : strategy.getAudioAttributes()) {
		int attrGroupId = attr.getGroupId();
		groups[attrGroupId].push_back(attr);
		}
		numAttributesGroups = groups.size();

		jAudioAttributesGroups = env->NewObjectArray(numAttributesGroups, gAudioAttributesGroupClass, NULL);

		for (const auto &iter : groups) {
		std::vector<AudioAttributes> audioAttributesGroups = iter.second;
		jint numAttributes = audioAttributesGroups.size();
		jint jGroupId = iter.first;
		jint jLegacyStreamType = audioAttributesGroups.front().getStreamType();

		jStatus = JNIAudioAttributeHelper::getJavaArray(env, &jAudioAttributes, numAttributes);
		if (jStatus != (jint)AUDIO_JAVA_SUCCESS) {
		goto exit;
		}
		for (size_t j = 0; j < static_cast<size_t>(numAttributes); j++) {
		auto attributes = audioAttributesGroups[j].getAttributes();

		jStatus = JNIAudioAttributeHelper::nativeToJava(env, &jAudioAttribute, attributes);
		if (jStatus != AUDIO_JAVA_SUCCESS) {
		goto exit;
		}
		env->SetObjectArrayElement(jAudioAttributes, j, jAudioAttribute);
		}
		jobject jAudioAttributesGroup = env->NewObject(gAudioAttributesGroupClass,
		gAudioAttributesGroupCstor,
		jGroupId,
		jLegacyStreamType,
		jAudioAttributes);
		env->SetObjectArrayElement(jAudioAttributesGroups, indexGroup++, jAudioAttributesGroup);

		if (jAudioAttributes != NULL) {
		env->DeleteLocalRef(jAudioAttributes);
		jAudioAttributes = NULL;
		}
		if (jAudioAttribute != NULL) {
		env->DeleteLocalRef(jAudioAttribute);
		jAudioAttribute = NULL;
		}
		if (jAudioAttributesGroup != NULL) {
		env->DeleteLocalRef(jAudioAttributesGroup);
		jAudioAttributesGroup = NULL;
		}
		}
		*jAudioStrategy = env->NewObject(gAudioProductStrategyClass, gAudioProductStrategyCstor,
		jName,
		jStrategyId,
		jAudioAttributesGroups);
		exit:
		if (jAudioAttributes != NULL) {
		env->DeleteLocalRef(jAudioAttributes);
		}
		if (jAudioAttribute != NULL) {
		env->DeleteLocalRef(jAudioAttribute);
		jAudioAttribute = NULL;
		}
		if (jAudioAttributesGroups != NULL) {
		env->DeleteLocalRef(jAudioAttributesGroups);
		}
		if (jName != NULL) {
		env->DeleteLocalRef(jName);
		}
		return jStatus;
		}

		static jint
		android_media_AudioSystem_listAudioProductStrategies(JNIEnv *env, jobject clazz,
		jobject jStrategies)
		{
		if (env == NULL) {
		return AUDIO_JAVA_DEAD_OBJECT;
		}
		if (jStrategies == NULL) {
		ALOGE("listAudioProductStrategies NULL AudioProductStrategies");
		return (jint)AUDIO_JAVA_BAD_VALUE;
		}
		if (!env->IsInstanceOf(jStrategies, gArrayListClass)) {
		ALOGE("listAudioProductStrategies not an arraylist");
		return (jint)AUDIO_JAVA_BAD_VALUE;
		}

		status_t status;
		AudioProductStrategyVector strategies;
		jint jStatus;
		jobject jStrategy = NULL;

		status = AudioSystem::listAudioProductStrategies(strategies);
		if (status != NO_ERROR) {
		ALOGE("AudioSystem::listAudioProductStrategies error %d", status);
		return nativeToJavaStatus(status);
		}
		for (const auto &strategy : strategies) {
		jStatus = convertAudioProductStrategiesFromNative(env, &jStrategy, strategy);
		if (jStatus != AUDIO_JAVA_SUCCESS) {
		goto exit;
		}
		env->CallBooleanMethod(jStrategies, gArrayListMethods.add, jStrategy);
		}
		exit:
		if (jStrategy != NULL) {
		env->DeleteLocalRef(jStrategy);
		}
		return jStatus;
		}

		/*
		* JNI registration.
		*/
		static const JNINativeMethod gMethods[] = {
		{"native_list_audio_product_strategies", "(Ljava/util/ArrayList;)I",
		(void *)android_media_AudioSystem_listAudioProductStrategies},
		};

		int register_android_media_AudioProductStrategies(JNIEnv *env)
		{
		jclass arrayListClass = FindClassOrDie(env, "java/util/ArrayList");
		gArrayListClass = MakeGlobalRefOrDie(env, arrayListClass);
		gArrayListMethods.add = GetMethodIDOrDie(env, arrayListClass, "add", "(Ljava/lang/Object;)Z");
		gArrayListMethods.toArray = GetMethodIDOrDie(env, arrayListClass,
		"toArray", "()[Ljava/lang/Object;");

		jclass audioProductStrategyClass = FindClassOrDie(env, kAudioProductStrategyClassPathName);
		gAudioProductStrategyClass = MakeGlobalRefOrDie(env, audioProductStrategyClass);
		gAudioProductStrategyCstor = GetMethodIDOrDie(
		env, audioProductStrategyClass, "<init>",
		"(Ljava/lang/String;I[Landroid/media/audiopolicy/AudioProductStrategy$AudioAttributesGroup;)V");
		gAudioProductStrategyFields.mAudioAttributesGroups = GetFieldIDOrDie(
		env, audioProductStrategyClass, "mAudioAttributesGroups",
		"[Landroid/media/audiopolicy/AudioProductStrategy$AudioAttributesGroup;");
		gAudioProductStrategyFields.mName = GetFieldIDOrDie(
		env, audioProductStrategyClass, "mName", "Ljava/lang/String;");
		gAudioProductStrategyFields.mId = GetFieldIDOrDie(
		env, audioProductStrategyClass, "mId", "I");

		jclass audioAttributesGroupClass = FindClassOrDie(env, kAudioAttributesGroupsClassPathName);
		gAudioAttributesGroupClass = MakeGlobalRefOrDie(env, audioAttributesGroupClass);
		gAudioAttributesGroupCstor = GetMethodIDOrDie(env, audioAttributesGroupClass, "<init>",
		"(II[Landroid/media/AudioAttributes;)V");
		gAudioAttributesGroupsFields.mGroupId = GetFieldIDOrDie(
		env, audioAttributesGroupClass, "mGroupId", "I");
		gAudioAttributesGroupsFields.mLegacyStreamType = GetFieldIDOrDie(
		env, audioAttributesGroupClass, "mLegacyStreamType", "I");
		gAudioAttributesGroupsFields.mAudioAttributes = GetFieldIDOrDie(
		env, audioAttributesGroupClass, "mAudioAttributes",
		"[Landroid/media/AudioAttributes;");

		env->DeleteLocalRef(audioProductStrategyClass);
		env->DeleteLocalRef(audioAttributesGroupClass);

		return RegisterMethodsOrDie(env, kClassPathName, gMethods, NELEM(gMethods));
		}

media/java/android/media/audiopolicy/AudioProductStrategies.aidl

0 → 100644

+18 −0

Original line number	Diff line number	Diff line
		/* Copyright 2018, The Android Open Source 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 android.media.audiopolicy;

		parcelable AudioProductStrategies;