media/libaudioclient/tests/audiorouting_tests.cpp - LeafOS-Project/android_frameworks_av - Gitiles

 /*
  * Copyright (C) 2021 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 "AudioRoutingTest"

 #include <string.h>

 #include <binder/Binder.h>
 #include <binder/ProcessState.h>
 #include <cutils/properties.h>
 #include <gtest/gtest.h>

 #include "audio_test_utils.h"
 #include "test_execution_tracer.h"

 using namespace android;

 // UNIT TEST
 TEST(AudioTrackTest, TestPerformanceMode) {
     std::vector<struct audio_port_v7> ports;
     ASSERT_EQ(OK, listAudioPorts(ports));
     audio_output_flags_t output_flags[] = {AUDIO_OUTPUT_FLAG_FAST, AUDIO_OUTPUT_FLAG_DEEP_BUFFER};
     audio_flags_mask_t flags[] = {AUDIO_FLAG_LOW_LATENCY, AUDIO_FLAG_DEEP_BUFFER};
     bool hasFlag = false;
     for (int i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
         hasFlag = false;
         for (const auto& port : ports) {
             if (port.role == AUDIO_PORT_ROLE_SOURCE && port.type == AUDIO_PORT_TYPE_MIX) {
                 if ((port.active_config.flags.output & output_flags[i]) != 0) {
                     hasFlag = true;
                     break;
                 }
             }
         }
         if (!hasFlag) continue;
         audio_attributes_t attributes = AUDIO_ATTRIBUTES_INITIALIZER;
         attributes.usage = AUDIO_USAGE_MEDIA;
         attributes.content_type = AUDIO_CONTENT_TYPE_MUSIC;
         attributes.flags = flags[i];
         sp<AudioPlayback> ap = sp<AudioPlayback>::make(0 /* sampleRate */, AUDIO_FORMAT_PCM_16_BIT,
                                                        AUDIO_CHANNEL_OUT_STEREO,
                                                        AUDIO_OUTPUT_FLAG_NONE, AUDIO_SESSION_NONE,
                                                        AudioTrack::TRANSFER_OBTAIN, &attributes);
         ASSERT_NE(nullptr, ap);
         ASSERT_EQ(OK, ap->loadResource("/data/local/tmp/bbb_2ch_24kHz_s16le.raw"))
                 << "Unable to open Resource";
         ASSERT_EQ(OK, ap->create()) << "track creation failed";
         sp<OnAudioDeviceUpdateNotifier> cb = sp<OnAudioDeviceUpdateNotifier>::make();
         EXPECT_EQ(OK, ap->getAudioTrackHandle()->addAudioDeviceCallback(cb));
         EXPECT_EQ(OK, ap->start()) << "audio track start failed";
         EXPECT_EQ(OK, ap->onProcess());
         EXPECT_EQ(OK, cb->waitForAudioDeviceCb());
         EXPECT_TRUE(checkPatchPlayback(cb->mAudioIo, cb->mDeviceId));
         EXPECT_NE(0, ap->getAudioTrackHandle()->getFlags() & output_flags[i]);
         audio_patch patch;
         EXPECT_EQ(OK, getPatchForOutputMix(cb->mAudioIo, patch));
         if (output_flags[i] != AUDIO_OUTPUT_FLAG_FAST) {
             // A "normal" output can still have a FastMixer, depending on the buffer size.
             // Thus, a fast track can be created on a mix port which does not have the FAST flag.
             for (auto j = 0; j < patch.num_sources; j++) {
                 if (patch.sources[j].type == AUDIO_PORT_TYPE_MIX &&
                     patch.sources[j].ext.mix.handle == cb->mAudioIo) {
                     SCOPED_TRACE(dumpPortConfig(patch.sources[j]));
                     EXPECT_NE(0, patch.sources[j].flags.output & output_flags[i])
                             << "expected output flag "
                             << audio_output_flag_to_string(output_flags[i]) << " is absent";
                 }
             }
         }
         ap->stop();
     }
 }

 TEST(AudioTrackTest, DefaultRoutingTest) {
     audio_port_v7 port;
     if (OK != getPortByAttributes(AUDIO_PORT_ROLE_SOURCE, AUDIO_PORT_TYPE_DEVICE,
                                   AUDIO_DEVICE_IN_REMOTE_SUBMIX, "0", port)) {
         GTEST_SKIP() << "remote submix in device not connected";
     }

     // create record instance
     sp<AudioCapture> capture = sp<AudioCapture>::make(
             AUDIO_SOURCE_REMOTE_SUBMIX, 48000, AUDIO_FORMAT_PCM_16_BIT, AUDIO_CHANNEL_IN_STEREO);
     ASSERT_NE(nullptr, capture);
     ASSERT_EQ(OK, capture->create()) << "record creation failed";
     sp<OnAudioDeviceUpdateNotifier> cbCapture = sp<OnAudioDeviceUpdateNotifier>::make();
     EXPECT_EQ(OK, capture->getAudioRecordHandle()->addAudioDeviceCallback(cbCapture));

     // create playback instance
     sp<AudioPlayback> playback = sp<AudioPlayback>::make(
             48000 /* sampleRate */, AUDIO_FORMAT_PCM_16_BIT, AUDIO_CHANNEL_OUT_STEREO,
             AUDIO_OUTPUT_FLAG_NONE, AUDIO_SESSION_NONE);
     ASSERT_NE(nullptr, playback);
     ASSERT_EQ(OK, playback->loadResource("/data/local/tmp/bbb_2ch_24kHz_s16le.raw"))
             << "Unable to open Resource";
     ASSERT_EQ(OK, playback->create()) << "track creation failed";
     sp<OnAudioDeviceUpdateNotifier> cbPlayback = sp<OnAudioDeviceUpdateNotifier>::make();
     EXPECT_EQ(OK, playback->getAudioTrackHandle()->addAudioDeviceCallback(cbPlayback));

     // capture should be routed to submix in port
     EXPECT_EQ(OK, capture->start()) << "start recording failed";
     EXPECT_EQ(OK, cbCapture->waitForAudioDeviceCb());
     EXPECT_EQ(port.id, capture->getAudioRecordHandle()->getRoutedDeviceId())
             << "Capture NOT routed on expected port";

     // capture start should create submix out port
     status_t status = getPortByAttributes(AUDIO_PORT_ROLE_SINK, AUDIO_PORT_TYPE_DEVICE,
                                           AUDIO_DEVICE_OUT_REMOTE_SUBMIX, "0", port);
     EXPECT_EQ(OK, status) << "Could not find port";

     // playback should be routed to submix out as long as capture is active
     EXPECT_EQ(OK, playback->start()) << "audio track start failed";
     EXPECT_EQ(OK, cbPlayback->waitForAudioDeviceCb());
     EXPECT_EQ(port.id, playback->getAudioTrackHandle()->getRoutedDeviceId())
             << "Playback NOT routed on expected port";

     capture->stop();
     playback->stop();
 }

 class AudioRoutingTest : public ::testing::Test {
   public:
     void SetUp() override {
         audio_port_v7 port;
         if (OK != getPortByAttributes(AUDIO_PORT_ROLE_SOURCE, AUDIO_PORT_TYPE_DEVICE,
                                       AUDIO_DEVICE_IN_REMOTE_SUBMIX, "0", port)) {
             GTEST_SKIP() << "remote submix in device not connected";
         }
         uint32_t mixType = MIX_TYPE_PLAYERS;
         uint32_t mixFlag = MIX_ROUTE_FLAG_LOOP_BACK;
         audio_devices_t deviceType = AUDIO_DEVICE_OUT_REMOTE_SUBMIX;
         AudioMixMatchCriterion criterion(AUDIO_USAGE_MEDIA, AUDIO_SOURCE_DEFAULT,
                                          RULE_MATCH_ATTRIBUTE_USAGE);
         std::vector<AudioMixMatchCriterion> criteria{criterion};
         audio_config_t config = AUDIO_CONFIG_INITIALIZER;
         config.channel_mask = AUDIO_CHANNEL_OUT_STEREO;
         config.format = AUDIO_FORMAT_PCM_16_BIT;
         config.sample_rate = 48000;
         AudioMix mix(criteria, mixType, config, mixFlag, String8{mAddress.c_str()}, 0);
         mix.mDeviceType = deviceType;
         mix.mToken = sp<BBinder>::make();
         mMixes.push(mix);
         if (OK == AudioSystem::registerPolicyMixes(mMixes, true)) {
             mPolicyMixRegistered = true;
         }
         ASSERT_TRUE(mPolicyMixRegistered) << "register policy mix failed";
     }

     void TearDown() override {
         if (mPolicyMixRegistered) {
             EXPECT_EQ(OK, AudioSystem::registerPolicyMixes(mMixes, false));
         }
     }

     bool mPolicyMixRegistered{false};
     std::string mAddress{"mix_1"};
     Vector<AudioMix> mMixes;
 };

 TEST_F(AudioRoutingTest, ConcurrentDynamicRoutingTest) {
     audio_port_v7 port, port_mix;
     // expect legacy submix in port to be connected
     status_t status = getPortByAttributes(AUDIO_PORT_ROLE_SOURCE, AUDIO_PORT_TYPE_DEVICE,
                                           AUDIO_DEVICE_IN_REMOTE_SUBMIX, "0", port);
     EXPECT_EQ(OK, status) << "Could not find port";

     // as policy mix is registered, expect submix in port with mAddress to be connected
     status = getPortByAttributes(AUDIO_PORT_ROLE_SOURCE, AUDIO_PORT_TYPE_DEVICE,
                                  AUDIO_DEVICE_IN_REMOTE_SUBMIX, mAddress, port_mix);
     EXPECT_EQ(OK, status) << "Could not find port";

     // create playback instance
     sp<AudioPlayback> playback = sp<AudioPlayback>::make(
             48000 /* sampleRate */, AUDIO_FORMAT_PCM_16_BIT, AUDIO_CHANNEL_OUT_STEREO,
             AUDIO_OUTPUT_FLAG_NONE, AUDIO_SESSION_NONE, AudioTrack::TRANSFER_OBTAIN);
     ASSERT_NE(nullptr, playback);
     ASSERT_EQ(OK, playback->loadResource("/data/local/tmp/bbb_2ch_24kHz_s16le.raw"))
             << "Unable to open Resource";
     ASSERT_EQ(OK, playback->create()) << "track creation failed";
     sp<OnAudioDeviceUpdateNotifier> cbPlayback = sp<OnAudioDeviceUpdateNotifier>::make();
     EXPECT_EQ(OK, playback->getAudioTrackHandle()->addAudioDeviceCallback(cbPlayback));

     // create capture instances on different ports
     sp<AudioCapture> captureA = sp<AudioCapture>::make(
             AUDIO_SOURCE_REMOTE_SUBMIX, 48000, AUDIO_FORMAT_PCM_16_BIT, AUDIO_CHANNEL_IN_STEREO);
     ASSERT_NE(nullptr, captureA);
     ASSERT_EQ(OK, captureA->create()) << "record creation failed";
     sp<OnAudioDeviceUpdateNotifier> cbCaptureA = sp<OnAudioDeviceUpdateNotifier>::make();
     EXPECT_EQ(OK, captureA->getAudioRecordHandle()->addAudioDeviceCallback(cbCaptureA));

     audio_attributes_t attr = AUDIO_ATTRIBUTES_INITIALIZER;
     attr.source = AUDIO_SOURCE_REMOTE_SUBMIX;
     sprintf(attr.tags, "addr=%s", mAddress.c_str());
     sp<AudioCapture> captureB = sp<AudioCapture>::make(
             AUDIO_SOURCE_REMOTE_SUBMIX, 48000, AUDIO_FORMAT_PCM_16_BIT, AUDIO_CHANNEL_IN_STEREO,
             AUDIO_INPUT_FLAG_NONE, AUDIO_SESSION_ALLOCATE, AudioRecord::TRANSFER_CALLBACK, &attr);
     ASSERT_NE(nullptr, captureB);
     ASSERT_EQ(OK, captureB->create()) << "record creation failed";
     sp<OnAudioDeviceUpdateNotifier> cbCaptureB = sp<OnAudioDeviceUpdateNotifier>::make();
     EXPECT_EQ(OK, captureB->getAudioRecordHandle()->addAudioDeviceCallback(cbCaptureB));

     // launch
     EXPECT_EQ(OK, captureA->start()) << "start recording failed";
     EXPECT_EQ(OK, cbCaptureA->waitForAudioDeviceCb());
     EXPECT_EQ(port.id, captureA->getAudioRecordHandle()->getRoutedDeviceId())
             << "Capture NOT routed on expected port";

     EXPECT_EQ(OK, captureB->start()) << "start recording failed";
     EXPECT_EQ(OK, cbCaptureB->waitForAudioDeviceCb());
     EXPECT_EQ(port_mix.id, captureB->getAudioRecordHandle()->getRoutedDeviceId())
             << "Capture NOT routed on expected port";

     // as record started, expect submix out ports to be connected
     status = getPortByAttributes(AUDIO_PORT_ROLE_SINK, AUDIO_PORT_TYPE_DEVICE,
                                  AUDIO_DEVICE_OUT_REMOTE_SUBMIX, "0", port);
     EXPECT_EQ(OK, status) << "unexpected submix out port found";

     status = getPortByAttributes(AUDIO_PORT_ROLE_SINK, AUDIO_PORT_TYPE_DEVICE,
                                  AUDIO_DEVICE_OUT_REMOTE_SUBMIX, mAddress, port_mix);
     EXPECT_EQ(OK, status) << "Could not find port";

     // check if playback routed to desired port
     EXPECT_EQ(OK, playback->start());
     EXPECT_EQ(OK, cbPlayback->waitForAudioDeviceCb());
     EXPECT_EQ(port_mix.id, playback->getAudioTrackHandle()->getRoutedDeviceId())
             << "Playback NOT routed on expected port";

     captureB->stop();

     // check if mAddress submix out is disconnected as capture session is stopped
     status = getPortByAttributes(AUDIO_PORT_ROLE_SINK, AUDIO_PORT_TYPE_DEVICE,
                                  AUDIO_DEVICE_OUT_REMOTE_SUBMIX, mAddress, port_mix);
     EXPECT_NE(OK, status) << "unexpected submix in port found";

     // check if legacy submix out is connected
     status = getPortByAttributes(AUDIO_PORT_ROLE_SINK, AUDIO_PORT_TYPE_DEVICE,
                                  AUDIO_DEVICE_OUT_REMOTE_SUBMIX, "0", port);
     EXPECT_EQ(OK, status) << "port not found";

     // unregister policy
     EXPECT_EQ(OK, AudioSystem::registerPolicyMixes(mMixes, false));
     mPolicyMixRegistered = false;

     // as policy mix is unregistered, expect submix in port with mAddress to be disconnected
     status = getPortByAttributes(AUDIO_PORT_ROLE_SOURCE, AUDIO_PORT_TYPE_DEVICE,
                                  AUDIO_DEVICE_IN_REMOTE_SUBMIX, mAddress, port_mix);
     EXPECT_NE(OK, status) << "unexpected submix in port found";

     playback->onProcess();
     // as captureA is active, it should re route to legacy submix
     EXPECT_EQ(OK, cbPlayback->waitForAudioDeviceCb(port.id));
     EXPECT_EQ(port.id, playback->getAudioTrackHandle()->getRoutedDeviceId())
             << "Playback NOT routed on expected port";

     captureA->stop();
     playback->stop();
 }

 int main(int argc, char** argv) {
     android::ProcessState::self()->startThreadPool();
     ::testing::InitGoogleTest(&argc, argv);
     ::testing::UnitTest::GetInstance()->listeners().Append(new TestExecutionTracer());
     return RUN_ALL_TESTS();
 }
	/*
	* Copyright (C) 2021 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 "AudioRoutingTest"

	#include <string.h>

	#include <binder/Binder.h>
	#include <binder/ProcessState.h>
	#include <cutils/properties.h>
	#include <gtest/gtest.h>

	#include "audio_test_utils.h"
	#include "test_execution_tracer.h"

	using namespace android;

	// UNIT TEST
	TEST(AudioTrackTest, TestPerformanceMode) {
	std::vector<struct audio_port_v7> ports;
	ASSERT_EQ(OK, listAudioPorts(ports));
	audio_output_flags_t output_flags[] = {AUDIO_OUTPUT_FLAG_FAST, AUDIO_OUTPUT_FLAG_DEEP_BUFFER};
	audio_flags_mask_t flags[] = {AUDIO_FLAG_LOW_LATENCY, AUDIO_FLAG_DEEP_BUFFER};
	bool hasFlag = false;
	for (int i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
	hasFlag = false;
	for (const auto& port : ports) {
	if (port.role == AUDIO_PORT_ROLE_SOURCE && port.type == AUDIO_PORT_TYPE_MIX) {
	if ((port.active_config.flags.output & output_flags[i]) != 0) {
	hasFlag = true;
	break;
	}
	}
	}
	if (!hasFlag) continue;
	audio_attributes_t attributes = AUDIO_ATTRIBUTES_INITIALIZER;
	attributes.usage = AUDIO_USAGE_MEDIA;
	attributes.content_type = AUDIO_CONTENT_TYPE_MUSIC;
	attributes.flags = flags[i];
	sp<AudioPlayback> ap = sp<AudioPlayback>::make(0 /* sampleRate */, AUDIO_FORMAT_PCM_16_BIT,
	AUDIO_CHANNEL_OUT_STEREO,
	AUDIO_OUTPUT_FLAG_NONE, AUDIO_SESSION_NONE,
	AudioTrack::TRANSFER_OBTAIN, &attributes);
	ASSERT_NE(nullptr, ap);
	ASSERT_EQ(OK, ap->loadResource("/data/local/tmp/bbb_2ch_24kHz_s16le.raw"))
	<< "Unable to open Resource";
	ASSERT_EQ(OK, ap->create()) << "track creation failed";
	sp<OnAudioDeviceUpdateNotifier> cb = sp<OnAudioDeviceUpdateNotifier>::make();
	EXPECT_EQ(OK, ap->getAudioTrackHandle()->addAudioDeviceCallback(cb));
	EXPECT_EQ(OK, ap->start()) << "audio track start failed";
	EXPECT_EQ(OK, ap->onProcess());
	EXPECT_EQ(OK, cb->waitForAudioDeviceCb());
	EXPECT_TRUE(checkPatchPlayback(cb->mAudioIo, cb->mDeviceId));
	EXPECT_NE(0, ap->getAudioTrackHandle()->getFlags() & output_flags[i]);
	audio_patch patch;
	EXPECT_EQ(OK, getPatchForOutputMix(cb->mAudioIo, patch));
	if (output_flags[i] != AUDIO_OUTPUT_FLAG_FAST) {
	// A "normal" output can still have a FastMixer, depending on the buffer size.
	// Thus, a fast track can be created on a mix port which does not have the FAST flag.
	for (auto j = 0; j < patch.num_sources; j++) {
	if (patch.sources[j].type == AUDIO_PORT_TYPE_MIX &&
	patch.sources[j].ext.mix.handle == cb->mAudioIo) {
	SCOPED_TRACE(dumpPortConfig(patch.sources[j]));
	EXPECT_NE(0, patch.sources[j].flags.output & output_flags[i])
	<< "expected output flag "
	<< audio_output_flag_to_string(output_flags[i]) << " is absent";
	}
	}
	}
	ap->stop();
	}
	}

	TEST(AudioTrackTest, DefaultRoutingTest) {
	audio_port_v7 port;
	if (OK != getPortByAttributes(AUDIO_PORT_ROLE_SOURCE, AUDIO_PORT_TYPE_DEVICE,
	AUDIO_DEVICE_IN_REMOTE_SUBMIX, "0", port)) {
	GTEST_SKIP() << "remote submix in device not connected";
	}

	// create record instance
	sp<AudioCapture> capture = sp<AudioCapture>::make(
	AUDIO_SOURCE_REMOTE_SUBMIX, 48000, AUDIO_FORMAT_PCM_16_BIT, AUDIO_CHANNEL_IN_STEREO);
	ASSERT_NE(nullptr, capture);
	ASSERT_EQ(OK, capture->create()) << "record creation failed";
	sp<OnAudioDeviceUpdateNotifier> cbCapture = sp<OnAudioDeviceUpdateNotifier>::make();
	EXPECT_EQ(OK, capture->getAudioRecordHandle()->addAudioDeviceCallback(cbCapture));

	// create playback instance
	sp<AudioPlayback> playback = sp<AudioPlayback>::make(
	48000 /* sampleRate */, AUDIO_FORMAT_PCM_16_BIT, AUDIO_CHANNEL_OUT_STEREO,
	AUDIO_OUTPUT_FLAG_NONE, AUDIO_SESSION_NONE);
	ASSERT_NE(nullptr, playback);
	ASSERT_EQ(OK, playback->loadResource("/data/local/tmp/bbb_2ch_24kHz_s16le.raw"))
	<< "Unable to open Resource";
	ASSERT_EQ(OK, playback->create()) << "track creation failed";
	sp<OnAudioDeviceUpdateNotifier> cbPlayback = sp<OnAudioDeviceUpdateNotifier>::make();
	EXPECT_EQ(OK, playback->getAudioTrackHandle()->addAudioDeviceCallback(cbPlayback));

	// capture should be routed to submix in port
	EXPECT_EQ(OK, capture->start()) << "start recording failed";
	EXPECT_EQ(OK, cbCapture->waitForAudioDeviceCb());
	EXPECT_EQ(port.id, capture->getAudioRecordHandle()->getRoutedDeviceId())
	<< "Capture NOT routed on expected port";

	// capture start should create submix out port
	status_t status = getPortByAttributes(AUDIO_PORT_ROLE_SINK, AUDIO_PORT_TYPE_DEVICE,
	AUDIO_DEVICE_OUT_REMOTE_SUBMIX, "0", port);
	EXPECT_EQ(OK, status) << "Could not find port";

	// playback should be routed to submix out as long as capture is active
	EXPECT_EQ(OK, playback->start()) << "audio track start failed";
	EXPECT_EQ(OK, cbPlayback->waitForAudioDeviceCb());
	EXPECT_EQ(port.id, playback->getAudioTrackHandle()->getRoutedDeviceId())
	<< "Playback NOT routed on expected port";

	capture->stop();
	playback->stop();
	}

	class AudioRoutingTest : public ::testing::Test {
	public:
	void SetUp() override {
	audio_port_v7 port;
	if (OK != getPortByAttributes(AUDIO_PORT_ROLE_SOURCE, AUDIO_PORT_TYPE_DEVICE,
	AUDIO_DEVICE_IN_REMOTE_SUBMIX, "0", port)) {
	GTEST_SKIP() << "remote submix in device not connected";
	}
	uint32_t mixType = MIX_TYPE_PLAYERS;
	uint32_t mixFlag = MIX_ROUTE_FLAG_LOOP_BACK;
	audio_devices_t deviceType = AUDIO_DEVICE_OUT_REMOTE_SUBMIX;
	AudioMixMatchCriterion criterion(AUDIO_USAGE_MEDIA, AUDIO_SOURCE_DEFAULT,
	RULE_MATCH_ATTRIBUTE_USAGE);
	std::vector<AudioMixMatchCriterion> criteria{criterion};
	audio_config_t config = AUDIO_CONFIG_INITIALIZER;
	config.channel_mask = AUDIO_CHANNEL_OUT_STEREO;
	config.format = AUDIO_FORMAT_PCM_16_BIT;
	config.sample_rate = 48000;
	AudioMix mix(criteria, mixType, config, mixFlag, String8{mAddress.c_str()}, 0);
	mix.mDeviceType = deviceType;
	mix.mToken = sp<BBinder>::make();
	mMixes.push(mix);
	if (OK == AudioSystem::registerPolicyMixes(mMixes, true)) {
	mPolicyMixRegistered = true;
	}
	ASSERT_TRUE(mPolicyMixRegistered) << "register policy mix failed";
	}

	void TearDown() override {
	if (mPolicyMixRegistered) {
	EXPECT_EQ(OK, AudioSystem::registerPolicyMixes(mMixes, false));
	}
	}

	bool mPolicyMixRegistered{false};
	std::string mAddress{"mix_1"};
	Vector<AudioMix> mMixes;
	};

	TEST_F(AudioRoutingTest, ConcurrentDynamicRoutingTest) {
	audio_port_v7 port, port_mix;
	// expect legacy submix in port to be connected
	status_t status = getPortByAttributes(AUDIO_PORT_ROLE_SOURCE, AUDIO_PORT_TYPE_DEVICE,
	AUDIO_DEVICE_IN_REMOTE_SUBMIX, "0", port);
	EXPECT_EQ(OK, status) << "Could not find port";

	// as policy mix is registered, expect submix in port with mAddress to be connected
	status = getPortByAttributes(AUDIO_PORT_ROLE_SOURCE, AUDIO_PORT_TYPE_DEVICE,
	AUDIO_DEVICE_IN_REMOTE_SUBMIX, mAddress, port_mix);
	EXPECT_EQ(OK, status) << "Could not find port";

	// create playback instance
	sp<AudioPlayback> playback = sp<AudioPlayback>::make(
	48000 /* sampleRate */, AUDIO_FORMAT_PCM_16_BIT, AUDIO_CHANNEL_OUT_STEREO,
	AUDIO_OUTPUT_FLAG_NONE, AUDIO_SESSION_NONE, AudioTrack::TRANSFER_OBTAIN);
	ASSERT_NE(nullptr, playback);
	ASSERT_EQ(OK, playback->loadResource("/data/local/tmp/bbb_2ch_24kHz_s16le.raw"))
	<< "Unable to open Resource";
	ASSERT_EQ(OK, playback->create()) << "track creation failed";
	sp<OnAudioDeviceUpdateNotifier> cbPlayback = sp<OnAudioDeviceUpdateNotifier>::make();
	EXPECT_EQ(OK, playback->getAudioTrackHandle()->addAudioDeviceCallback(cbPlayback));

	// create capture instances on different ports
	sp<AudioCapture> captureA = sp<AudioCapture>::make(
	AUDIO_SOURCE_REMOTE_SUBMIX, 48000, AUDIO_FORMAT_PCM_16_BIT, AUDIO_CHANNEL_IN_STEREO);
	ASSERT_NE(nullptr, captureA);
	ASSERT_EQ(OK, captureA->create()) << "record creation failed";
	sp<OnAudioDeviceUpdateNotifier> cbCaptureA = sp<OnAudioDeviceUpdateNotifier>::make();
	EXPECT_EQ(OK, captureA->getAudioRecordHandle()->addAudioDeviceCallback(cbCaptureA));

	audio_attributes_t attr = AUDIO_ATTRIBUTES_INITIALIZER;
	attr.source = AUDIO_SOURCE_REMOTE_SUBMIX;
	sprintf(attr.tags, "addr=%s", mAddress.c_str());
	sp<AudioCapture> captureB = sp<AudioCapture>::make(
	AUDIO_SOURCE_REMOTE_SUBMIX, 48000, AUDIO_FORMAT_PCM_16_BIT, AUDIO_CHANNEL_IN_STEREO,
	AUDIO_INPUT_FLAG_NONE, AUDIO_SESSION_ALLOCATE, AudioRecord::TRANSFER_CALLBACK, &attr);
	ASSERT_NE(nullptr, captureB);
	ASSERT_EQ(OK, captureB->create()) << "record creation failed";
	sp<OnAudioDeviceUpdateNotifier> cbCaptureB = sp<OnAudioDeviceUpdateNotifier>::make();
	EXPECT_EQ(OK, captureB->getAudioRecordHandle()->addAudioDeviceCallback(cbCaptureB));

	// launch
	EXPECT_EQ(OK, captureA->start()) << "start recording failed";
	EXPECT_EQ(OK, cbCaptureA->waitForAudioDeviceCb());
	EXPECT_EQ(port.id, captureA->getAudioRecordHandle()->getRoutedDeviceId())
	<< "Capture NOT routed on expected port";

	EXPECT_EQ(OK, captureB->start()) << "start recording failed";
	EXPECT_EQ(OK, cbCaptureB->waitForAudioDeviceCb());
	EXPECT_EQ(port_mix.id, captureB->getAudioRecordHandle()->getRoutedDeviceId())
	<< "Capture NOT routed on expected port";

	// as record started, expect submix out ports to be connected
	status = getPortByAttributes(AUDIO_PORT_ROLE_SINK, AUDIO_PORT_TYPE_DEVICE,
	AUDIO_DEVICE_OUT_REMOTE_SUBMIX, "0", port);
	EXPECT_EQ(OK, status) << "unexpected submix out port found";

	status = getPortByAttributes(AUDIO_PORT_ROLE_SINK, AUDIO_PORT_TYPE_DEVICE,
	AUDIO_DEVICE_OUT_REMOTE_SUBMIX, mAddress, port_mix);
	EXPECT_EQ(OK, status) << "Could not find port";

	// check if playback routed to desired port
	EXPECT_EQ(OK, playback->start());
	EXPECT_EQ(OK, cbPlayback->waitForAudioDeviceCb());
	EXPECT_EQ(port_mix.id, playback->getAudioTrackHandle()->getRoutedDeviceId())
	<< "Playback NOT routed on expected port";

	captureB->stop();

	// check if mAddress submix out is disconnected as capture session is stopped
	status = getPortByAttributes(AUDIO_PORT_ROLE_SINK, AUDIO_PORT_TYPE_DEVICE,
	AUDIO_DEVICE_OUT_REMOTE_SUBMIX, mAddress, port_mix);
	EXPECT_NE(OK, status) << "unexpected submix in port found";

	// check if legacy submix out is connected
	status = getPortByAttributes(AUDIO_PORT_ROLE_SINK, AUDIO_PORT_TYPE_DEVICE,
	AUDIO_DEVICE_OUT_REMOTE_SUBMIX, "0", port);
	EXPECT_EQ(OK, status) << "port not found";

	// unregister policy
	EXPECT_EQ(OK, AudioSystem::registerPolicyMixes(mMixes, false));
	mPolicyMixRegistered = false;

	// as policy mix is unregistered, expect submix in port with mAddress to be disconnected
	status = getPortByAttributes(AUDIO_PORT_ROLE_SOURCE, AUDIO_PORT_TYPE_DEVICE,
	AUDIO_DEVICE_IN_REMOTE_SUBMIX, mAddress, port_mix);
	EXPECT_NE(OK, status) << "unexpected submix in port found";

	playback->onProcess();
	// as captureA is active, it should re route to legacy submix
	EXPECT_EQ(OK, cbPlayback->waitForAudioDeviceCb(port.id));
	EXPECT_EQ(port.id, playback->getAudioTrackHandle()->getRoutedDeviceId())
	<< "Playback NOT routed on expected port";

	captureA->stop();
	playback->stop();
	}

	int main(int argc, char** argv) {
	android::ProcessState::self()->startThreadPool();
	::testing::InitGoogleTest(&argc, argv);
	::testing::UnitTest::GetInstance()->listeners().Append(new TestExecutionTracer());
	return RUN_ALL_TESTS();
	}