Merge "aaudio test: improve stealing test" into rvc-dev am: 1ae898a10c (537843d6) · Commits · e / os / android_frameworks_av

media/libaaudio/tests/Android.bp

+1 −0

Original line number	Diff line number	Diff line
		@@ -233,6 +233,7 @@ cc_test {
		srcs: ["test_steal_exclusive.cpp"],
		shared_libs: [
		"libaaudio",
		"liblog",
		"libbinder",
		"libcutils",
		"libutils",

media/libaaudio/tests/test_steal_exclusive.cpp

+276 −151

Original line number	Diff line number	Diff line
		@@ -47,66 +47,100 @@
		*/

		#include <atomic>
		#include <mutex>
		#include <stdio.h>
		#include <thread>
		#include <unistd.h>

		#include <android/log.h>

		#include <aaudio/AAudio.h>
		#include <aaudio/AAudioTesting.h>

		#define DEFAULT_TIMEOUT_NANOS ((int64_t)1000000000)
		#define SOLO_DURATION_MSEC 2000
		#define DUET_DURATION_MSEC 8000
		#define SLEEP_DURATION_MSEC 500

		#define MODULE_NAME "stealAudio"
		#define LOGI(...) __android_log_print(ANDROID_LOG_INFO, MODULE_NAME, __VA_ARGS__)

		static const char * s_sharingModeToText(aaudio_sharing_mode_t mode) {
		return (mode == AAUDIO_SHARING_MODE_EXCLUSIVE) ? "EXCLUSIVE"
		: ((mode == AAUDIO_SHARING_MODE_SHARED) ? "SHARED"
		: AAudio_convertResultToText(mode));
		}

		static const char * s_performanceModeToText(aaudio_performance_mode_t mode) {
		return (mode == AAUDIO_PERFORMANCE_MODE_LOW_LATENCY) ? "LOWLAT"
		: ((mode == AAUDIO_PERFORMANCE_MODE_NONE) ? "NONE"
		: AAudio_convertResultToText(mode));
		}

		static aaudio_data_callback_result_t s_myDataCallbackProc(
		AAudioStream * /* stream */,
		void *userData,
		void *audioData,
		int32_t numFrames);

		static void s_myErrorCallbackProc(
		AAudioStream *stream,
		void *userData,
		aaudio_result_t error);

		struct AudioEngine {
		AAudioStream *stream = nullptr;
		std::thread *thread = nullptr;
		aaudio_direction_t direction = AAUDIO_DIRECTION_OUTPUT;
		class AudioEngine {
		public:

		AudioEngine(const char *name) {
		mName = name;
		}

		// These counters are read and written by the callback and the main thread.
		std::atomic<int32_t> framesRead{};
		std::atomic<int32_t> framesCalled{};
		std::atomic<int32_t> callbackCount{};
		std::atomic<aaudio_sharing_mode_t> sharingMode{};
		std::atomic<aaudio_performance_mode_t> performanceMode{};
		std::atomic<bool> isMMap{false};

		void reset() {
		framesRead.store(0);
		framesCalled.store(0);
		callbackCount.store(0);
		void setMaxRetries(int maxRetries) {
		mMaxRetries = maxRetries;
		}
		};

		// Callback function that fills the audio output buffer.
		static aaudio_data_callback_result_t s_myDataCallbackProc(
		AAudioStream *stream,
		void *userData,
		void *audioData,
		int32_t numFrames
		) {
		(void) audioData;
		(void) numFrames;
		AudioEngine engine = (struct AudioEngine )userData;
		engine->callbackCount++;
		void setOpenDelayMillis(int openDelayMillis) {
		mOpenDelayMillis = openDelayMillis;
		}

		void restartStream() {
		int retriesLeft = mMaxRetries;
		aaudio_result_t result;
		do {
		closeAudioStream();
		if (mOpenDelayMillis) usleep(mOpenDelayMillis * 1000);
		openAudioStream(mDirection);
		// It is possible for the stream to be disconnected, or stolen between the time
		// it is opened and when it is started. If that happens then try again.
		// If it was stolen then it should succeed the second time because there will already be
		// a SHARED stream, which will not get stolen.
		result = AAudioStream_requestStart(mStream);
		printf("%s: AAudioStream_requestStart() returns %s\n",
		mName.c_str(),
		AAudio_convertResultToText(result));
		} while (retriesLeft-- > 0 && result != AAUDIO_OK);
		}

		engine->framesRead = (int32_t)AAudioStream_getFramesRead(stream);
		engine->framesCalled += numFrames;
		aaudio_data_callback_result_t onAudioReady(
		void * /audioData /,
		int32_t numFrames) {
		callbackCount++;
		framesCalled += numFrames;
		return AAUDIO_CALLBACK_RESULT_CONTINUE;
		}

		static aaudio_result_t s_OpenAudioStream(struct AudioEngine *engine,
		aaudio_direction_t direction) {
		aaudio_result_t openAudioStream(aaudio_direction_t direction) {
		std::lock_guard<std::mutex> lock(mLock);

		AAudioStreamBuilder *builder = nullptr;
		engine->direction = direction;
		mDirection = direction;

		// Use an AAudioStreamBuilder to contain requested parameters.
		aaudio_result_t result = AAudio_createStreamBuilder(&builder);
		@@ -121,11 +155,11 @@ static aaudio_result_t s_OpenAudioStream(struct AudioEngine *engine,
		AAudioStreamBuilder_setPerformanceMode(builder, AAUDIO_PERFORMANCE_MODE_LOW_LATENCY);
		AAudioStreamBuilder_setSharingMode(builder, AAUDIO_SHARING_MODE_EXCLUSIVE);
		AAudioStreamBuilder_setDirection(builder, direction);
		AAudioStreamBuilder_setDataCallback(builder, s_myDataCallbackProc, engine);
		AAudioStreamBuilder_setErrorCallback(builder, s_myErrorCallbackProc, engine);
		AAudioStreamBuilder_setDataCallback(builder, s_myDataCallbackProc, this);
		AAudioStreamBuilder_setErrorCallback(builder, s_myErrorCallbackProc, this);

		// Create an AAudioStream using the Builder.
		result = AAudioStreamBuilder_openStream(builder, &engine->stream);
		result = AAudioStreamBuilder_openStream(builder, &mStream);
		AAudioStreamBuilder_delete(builder);
		builder = nullptr;
		if (result != AAUDIO_OK) {
		@@ -133,51 +167,148 @@ static aaudio_result_t s_OpenAudioStream(struct AudioEngine *engine,
		AAudio_convertResultToText(result));
		}

		// See see what kind of stream we actually opened.
		int32_t deviceId = AAudioStream_getDeviceId(engine->stream);
		aaudio_sharing_mode_t actualSharingMode = AAudioStream_getSharingMode(engine->stream);
		printf("-------- opened: deviceId = %3d, actualSharingMode = %s\n",
		// See what kind of stream we actually opened.
		int32_t deviceId = AAudioStream_getDeviceId(mStream);
		sharingMode = AAudioStream_getSharingMode(mStream);
		performanceMode = AAudioStream_getPerformanceMode(mStream);
		isMMap = AAudioStream_isMMapUsed(mStream);
		printf("%s: opened: deviceId = %3d, sharingMode = %s, perf = %s, %s --------\n",
		mName.c_str(),
		deviceId,
		s_sharingModeToText(actualSharingMode));
		s_sharingModeToText(sharingMode),
		s_performanceModeToText(performanceMode),
		(isMMap ? "MMAP" : "Legacy")
		);

		return result;
		}

		static aaudio_result_t s_CloseAudioStream(struct AudioEngine *engine) {
		aaudio_result_t closeAudioStream() {
		std::lock_guard<std::mutex> lock(mLock);
		aaudio_result_t result = AAUDIO_OK;
		if (engine->stream != nullptr) {
		result = AAudioStream_close(engine->stream);
		if (mStream != nullptr) {
		result = AAudioStream_close(mStream);
		if (result != AAUDIO_OK) {
		printf("AAudioStream_close returned %s\n",
		AAudio_convertResultToText(result));
		}
		engine->stream = nullptr;
		mStream = nullptr;
		}
		return result;
		}

		/**
		* @return 0 is OK, -1 for error
		*/
		int checkEnginePositions() {
		std::lock_guard<std::mutex> lock(mLock);
		if (mStream == nullptr) return 0;

		const int64_t framesRead = AAudioStream_getFramesRead(mStream);
		const int64_t framesWritten = AAudioStream_getFramesWritten(mStream);
		const int32_t delta = (int32_t)(framesWritten - framesRead);
		printf("%s: playing framesRead = %7d, framesWritten = %7d"
		", delta = %4d, framesCalled = %6d, callbackCount = %4d\n",
		mName.c_str(),
		(int32_t) framesRead,
		(int32_t) framesWritten,
		delta,
		framesCalled.load(),
		callbackCount.load()
		);
		if (delta > AAudioStream_getBufferCapacityInFrames(mStream)) {
		printf("ERROR - delta > capacity\n");
		return -1;
		}
		return 0;
		}

		aaudio_result_t start() {
		std::lock_guard<std::mutex> lock(mLock);
		reset();
		if (mStream == nullptr) return 0;
		return AAudioStream_requestStart(mStream);
		}

		aaudio_result_t stop() {
		std::lock_guard<std::mutex> lock(mLock);
		if (mStream == nullptr) return 0;
		return AAudioStream_requestStop(mStream);
		}

		bool hasAdvanced() {
		std::lock_guard<std::mutex> lock(mLock);
		if (mStream == nullptr) return 0;
		if (mDirection == AAUDIO_DIRECTION_OUTPUT) {
		return AAudioStream_getFramesRead(mStream) > 0;
		} else {
		return AAudioStream_getFramesWritten(mStream) > 0;
		}
		}

		aaudio_result_t verify() {
		int errorCount = 0;
		if (hasAdvanced()) {
		printf("%s: stream is running => PASS\n", mName.c_str());
		} else {
		errorCount++;
		printf("%s: stream should be running => FAIL!!\n", mName.c_str());
		}

		if (isMMap) {
		printf("%s: data path is MMAP => PASS\n", mName.c_str());
		} else {
		errorCount++;
		printf("%s: data path is Legacy! => FAIL\n", mName.c_str());
		}

		// Check for PASS/FAIL
		if (sharingMode == AAUDIO_SHARING_MODE_SHARED) {
		printf("%s: mode is SHARED => PASS\n", mName.c_str());
		} else {
		errorCount++;
		printf("%s: modes is EXCLUSIVE => FAIL!!\n", mName.c_str());
		}
		return errorCount ? AAUDIO_ERROR_INVALID_FORMAT : AAUDIO_OK;
		}

		private:
		void reset() {
		framesCalled.store(0);
		callbackCount.store(0);
		}

		AAudioStream *mStream = nullptr;
		aaudio_direction_t mDirection = AAUDIO_DIRECTION_OUTPUT;
		std::mutex mLock;
		std::string mName;
		int mMaxRetries = 1;
		int mOpenDelayMillis = 0;
		};

		// Callback function that fills the audio output buffer.
		static aaudio_data_callback_result_t s_myDataCallbackProc(
		AAudioStream * /* stream */,
		void *userData,
		void *audioData,
		int32_t numFrames
		) {
		AudioEngine engine = (AudioEngine )userData;
		return engine->onAudioReady(audioData, numFrames);
		}

		static void s_myRestartStreamProc(void *userData) {
		LOGI("%s() called", __func__);
		printf("%s() - restart in separate thread\n", __func__);
		AudioEngine engine = (AudioEngine ) userData;
		int retriesLeft = 1;
		aaudio_result_t result;
		do {
		s_CloseAudioStream(engine);
		s_OpenAudioStream(engine, engine->direction);
		// It is possible for the stream to be disconnected, or stolen between the time
		// it is opened and when it is started. If that happens then try again.
		// If it was stolen then it should succeed the second time because there will already be
		// a SHARED stream, which will not get stolen.
		result = AAudioStream_requestStart(engine->stream);
		printf("%s() - AAudioStream_requestStart() returns %s\n", __func__,
		AAudio_convertResultToText(result));
		} while (retriesLeft-- > 0 && result != AAUDIO_OK);
		engine->restartStream();
		}

		static void s_myErrorCallbackProc(
		AAudioStream * /* stream */,
		void *userData,
		aaudio_result_t error) {
		LOGI("%s() called", __func__);
		printf("%s() - error = %s\n", __func__, AAudio_convertResultToText(error));
		// Handle error on a separate thread.
		std::thread t(s_myRestartStreamProc, userData);
		@@ -185,42 +316,20 @@ static void s_myErrorCallbackProc(
		}

		static void s_usage() {
		printf("test_steal_exclusive [-i]\n");
		printf("test_steal_exclusive [-i] [-r{maxRetries}] [-d{delay}]\n");
		printf(" -i direction INPUT, otherwise OUTPUT\n");
		}

		/**
		* @return 0 is OK, -1 for error
		*/
		static int s_checkEnginePositions(AudioEngine *engine) {
		if (engine->stream == nullptr) return 0; // race condition with onError procs!

		const int64_t framesRead = AAudioStream_getFramesRead(engine->stream);
		const int64_t framesWritten = AAudioStream_getFramesWritten(engine->stream);
		const int32_t delta = (int32_t)(framesWritten - framesRead);
		printf("playing framesRead = %7d, framesWritten = %7d"
		", delta = %4d, framesCalled = %6d, callbackCount = %4d\n",
		(int32_t) framesRead,
		(int32_t) framesWritten,
		delta,
		engine->framesCalled.load(),
		engine->callbackCount.load()
		);
		if (delta > AAudioStream_getBufferCapacityInFrames(engine->stream)) {
		printf("ERROR - delta > capacity\n");
		return -1;
		}
		return 0;
		printf(" -d delay open by milliseconds, default = 0\n");
		printf(" -r max retries in the error callback, default = 1\n");
		}

		int main(int argc, char ** argv) {
		(void) argc;
		(void) argv;
		struct AudioEngine victim;
		struct AudioEngine thief;
		AudioEngine victim("victim");
		AudioEngine thief("thief");
		aaudio_direction_t direction = AAUDIO_DIRECTION_OUTPUT;
		aaudio_result_t result = AAUDIO_OK;
		int errorCount = 0;
		int maxRetries = 1;
		int openDelayMillis = 0;

		// Make printf print immediately so that debug info is not stuck
		// in a buffer if we hang or crash.
		@@ -234,9 +343,15 @@ int main(int argc, char **argv) {
		if (arg[0] == '-') {
		char option = arg[1];
		switch (option) {
		case 'd':
		openDelayMillis = atoi(&arg[2]);
		break;
		case 'i':
		direction = AAUDIO_DIRECTION_INPUT;
		break;
		case 'r':
		maxRetries = atoi(&arg[2]);
		break;
		default:
		s_usage();
		exit(EXIT_FAILURE);
		@@ -249,16 +364,34 @@ int main(int argc, char **argv) {
		}
		}

		result = s_OpenAudioStream(&victim, direction);
		victim.setOpenDelayMillis(openDelayMillis);
		thief.setOpenDelayMillis(openDelayMillis);
		victim.setMaxRetries(maxRetries);
		thief.setMaxRetries(maxRetries);

		result = victim.openAudioStream(direction);
		if (result != AAUDIO_OK) {
		printf("s_OpenAudioStream victim returned %s\n",
		AAudio_convertResultToText(result));
		errorCount++;
		}
		victim.reset();

		if (victim.sharingMode == AAUDIO_SHARING_MODE_EXCLUSIVE) {
		printf("Victim modes is EXCLUSIVE => OK\n");
		} else {
		printf("Victim modes should be EXCLUSIVE => test not valid!\n");
		goto onerror;
		}

		if (victim.isMMap) {
		printf("Victim data path is MMAP => OK\n");
		} else {
		printf("Victim data path is Legacy! => test not valid\n");
		goto onerror;
		}

		// Start stream.
		result = AAudioStream_requestStart(victim.stream);
		result = victim.start();
		printf("AAudioStream_requestStart(VICTIM) returned %d >>>>>>>>>>>>>>>>>>>>>>\n", result);
		if (result != AAUDIO_OK) {
		errorCount++;
		@@ -267,77 +400,69 @@ int main(int argc, char **argv) {
		if (result == AAUDIO_OK) {
		const int watchLoops = SOLO_DURATION_MSEC / SLEEP_DURATION_MSEC;
		for (int i = watchLoops; i > 0; i--) {
		errorCount += s_checkEnginePositions(&victim) ? 1 : 0;
		errorCount += victim.checkEnginePositions() ? 1 : 0;
		usleep(SLEEP_DURATION_MSEC * 1000);
		}
		}

		printf("Try to start the THIEF stream that may steal the VICTIM MMAP resource -----\n");
		result = s_OpenAudioStream(&thief, direction);
		printf("Trying to start the THIEF stream, which may steal the VICTIM MMAP resource -----\n");
		result = thief.openAudioStream(direction);
		if (result != AAUDIO_OK) {
		printf("s_OpenAudioStream victim returned %s\n",
		AAudio_convertResultToText(result));
		errorCount++;
		}
		thief.reset();

		// Start stream.
		result = AAudioStream_requestStart(thief.stream);
		result = thief.start();
		printf("AAudioStream_requestStart(THIEF) returned %d >>>>>>>>>>>>>>>>>>>>>>\n", result);
		if (result != AAUDIO_OK) {
		errorCount++;
		}
		printf("You might enjoy plugging in a headset now to see what happens...\n");

		// Give stream time to advance.
		usleep(SLEEP_DURATION_MSEC * 1000);

		if (victim.verify()) {
		errorCount++;
		goto onerror;
		}
		if (thief.verify()) {
		errorCount++;
		goto onerror;
		}

		LOGI("Both streams running. Ask user to plug in headset. ====");
		printf("\n====\nPlease PLUG IN A HEADSET now!\n====\n\n");

		if (result == AAUDIO_OK) {
		const int watchLoops = DUET_DURATION_MSEC / SLEEP_DURATION_MSEC;
		for (int i = watchLoops; i > 0; i--) {
		printf("victim: ");
		errorCount += s_checkEnginePositions(&victim) ? 1 : 0;
		printf(" thief: ");
		errorCount += s_checkEnginePositions(&thief) ? 1 : 0;
		errorCount += victim.checkEnginePositions() ? 1 : 0;
		errorCount += thief.checkEnginePositions() ? 1 : 0;
		usleep(SLEEP_DURATION_MSEC * 1000);
		}
		}

		// Check for PASS/FAIL
		aaudio_sharing_mode_t victimSharingMode = AAudioStream_getSharingMode(victim.stream);
		aaudio_sharing_mode_t thiefSharingMode = AAudioStream_getSharingMode(thief.stream);
		printf("victimSharingMode = %s, thiefSharingMode = %s, - ",
		s_sharingModeToText(victimSharingMode),
		s_sharingModeToText(thiefSharingMode));
		if ((victimSharingMode == AAUDIO_SHARING_MODE_SHARED)
		&& (thiefSharingMode == AAUDIO_SHARING_MODE_SHARED)) {
		printf("Both modes are SHARED => PASS\n");
		} else {
		errorCount++;
		printf("Both modes should be SHARED => FAIL!!\n");
		}

		const int64_t victimFramesRead = AAudioStream_getFramesRead(victim.stream);
		const int64_t thiefFramesRead = AAudioStream_getFramesRead(thief.stream);
		printf("victimFramesRead = %d, thiefFramesRead = %d, - ",
		(int)victimFramesRead, (int)thiefFramesRead);
		if (victimFramesRead > 0 && thiefFramesRead > 0) {
		printf("Both streams are running => PASS\n");
		} else {
		errorCount++;
		printf("Both streams should be running => FAIL!!\n");
		}
		errorCount += victim.verify() ? 1 : 0;
		errorCount += thief.verify() ? 1 : 0;

		result = AAudioStream_requestStop(victim.stream);
		result = victim.stop();
		printf("AAudioStream_requestStop() returned %d <<<<<<<<<<<<<<<<<<<<<\n", result);
		if (result != AAUDIO_OK) {
		printf("stop result = %d = %s\n", result, AAudio_convertResultToText(result));
		errorCount++;
		}
		result = AAudioStream_requestStop(thief.stream);
		result = thief.stop();
		printf("AAudioStream_requestStop() returned %d <<<<<<<<<<<<<<<<<<<<<\n", result);
		if (result != AAUDIO_OK) {
		printf("stop result = %d = %s\n", result, AAudio_convertResultToText(result));
		errorCount++;
		}

		s_CloseAudioStream(&victim);
		s_CloseAudioStream(&thief);
		onerror:
		victim.closeAudioStream();
		thief.closeAudioStream();

		printf("aaudio result = %d = %s\n", result, AAudio_convertResultToText(result));
		printf("test %s\n", errorCount ? "FAILED" : "PASSED");