Add test for pcm offload. (095ef4c8) · Commits · e / os / android_frameworks_av

media/libaaudio/examples/utils/AAudioArgsParser.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -435,6 +435,7 @@ public:
		printf(" n for _NONE\n");
		printf(" l for _LATENCY\n");
		printf(" p for _POWER_SAVING;\n");
		printf(" o for _POWER_SAVING_OFFLOADED;\n");
		printf(" -r{sampleRate} for example 44100\n");
		printf(" -s{duration} in seconds, default is %d\n", DEFAULT_DURATION_SECONDS);
		printf(" -u{usage} eg. 14 for AAUDIO_USAGE_GAME\n");
		@@ -477,6 +478,9 @@ public:
		case 'p':
		mode = AAUDIO_PERFORMANCE_MODE_POWER_SAVING;
		break;
		case 'o':
		mode = AAUDIO_PERFORMANCE_MODE_POWER_SAVING_OFFLOADED;
		break;
		default:
		printf("ERROR: invalid performance mode %c\n", c);
		break;

media/libaaudio/examples/utils/AAudioSimplePlayer.h

+18 −0

Original line number	Diff line number	Diff line
		@@ -271,6 +271,24 @@ public:
		return result;
		}

		aaudio_result_t setOffloadDelayPadding(int delay, int padding) {
		aaudio_result_t result = AAudioStream_setOffloadDelayPadding(mStream, delay, padding);
		if (result != AAUDIO_OK) {
		printf("WARNING - AAudioStream_setOffloadDelayPadding(%d, %d) returned %d %s\n",
		delay, padding, result, AAudio_convertResultToText(result));
		}
		return result;
		}

		aaudio_result_t setOffloadEndOfStream() {
		aaudio_result_t result = AAudioStream_setOffloadEndOfStream(mStream);
		if (result != AAUDIO_OK) {
		printf("ERROR - AAudioStream_setOffloadEndOfStream() returned %d %s\n",
		result, AAudio_convertResultToText(result));
		}
		return result;
		}

		AAudioStream *getStream() const {
		return mStream;
		}

media/libaaudio/tests/Android.bp

+8 −0

Original line number	Diff line number	Diff line
		@@ -276,3 +276,11 @@ cc_test {
		],
		},
		}

		cc_binary {
		name: "test_pcm_offload",
		defaults: ["libaaudio_tests_defaults"],
		srcs: ["test_pcm_offload.cpp"],
		header_libs: ["libaaudio_example_utils"],
		shared_libs: ["libaaudio"],
		}

media/libaaudio/tests/test_pcm_offload.cpp

0 → 100644

+180 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2024 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.
		*/

		// PCM offload

		#include <stdio.h>
		#include <stdlib.h>
		#include <vector>

		#include <aaudio/AAudio.h>

		#include "AAudioArgsParser.h"
		#include "AAudioSimplePlayer.h"
		#include "SineGenerator.h"

		const static int DEFAULT_TIME_TO_RUN_IN_SECOND = 5;

		aaudio_data_callback_result_t MyDatacallback(AAudioStream* stream,
		void* userData,
		void* audioData,
		int32_t numFrames);

		void MyErrorCallback(AAudioStream* /stream/, void* /userData/, aaudio_result_t error);

		class OffloadPlayer : public AAudioSimplePlayer {
		public:
		OffloadPlayer(AAudioArgsParser& argParser, int delay, int padding, int streamFrames)
		: mArgParser(argParser), mDelay(delay), mPadding(padding), mStreamFrames(streamFrames) {
		}

		aaudio_result_t open() {
		aaudio_result_t result = AAudioSimplePlayer::open(mArgParser,
		&MyDatacallback,
		&MyErrorCallback,
		this);
		if (result != AAUDIO_OK) {
		return result;
		}
		mChannelCount = getChannelCount();
		for (int i = 0; i < mChannelCount; ++i) {
		SineGenerator sine;
		sine.setup(440.0, 48000.0);
		mSines.push_back(sine);
		}
		return result;
		}

		aaudio_data_callback_result_t renderAudio(AAudioStream* stream,
		void* audioData,
		int32_t numFrames) {
		// Just handle PCM_16 and PCM_FLOAT for testing
		switch (AAudioStream_getFormat(stream)) {
		case AAUDIO_FORMAT_PCM_I16: {
		int16_t audioBuffer = static_cast<int16_t >(audioData);
		for (int i = 0; i < mChannelCount; ++i) {
		mSines[i].render(&audioBuffer[i], mChannelCount, numFrames);
		}
		} break;
		case AAUDIO_FORMAT_PCM_FLOAT: {
		float audioBuffer = static_cast<float >(audioData);
		for (int i = 0; i < mChannelCount; ++i) {
		mSines[i].render(&audioBuffer[i], mChannelCount, numFrames);
		}
		} break;
		default:
		return AAUDIO_CALLBACK_RESULT_STOP;
		}
		mFramesWritten += numFrames;
		if (mStreamFrames > 0 && mFramesWritten >= mStreamFrames) {
		if (auto result = setOffloadEndOfStream(); result != AAUDIO_OK) {
		printf("Failed to set offload end of stream, stopping the stream now");
		return AAUDIO_CALLBACK_RESULT_STOP;
		}
		(void) setOffloadDelayPadding(mDelay, mPadding);
		mFramesWritten = 0;
		}
		return AAUDIO_CALLBACK_RESULT_CONTINUE;
		}

		private:
		const AAudioArgsParser mArgParser;
		const int mDelay;
		const int mPadding;
		const int mStreamFrames;

		int mChannelCount;
		std::vector<SineGenerator> mSines;
		int mFramesWritten = 0;
		};

		aaudio_data_callback_result_t MyDatacallback(AAudioStream* stream,
		void* userData,
		void* audioData,
		int32_t numFrames) {
		OffloadPlayer* player = static_cast<OffloadPlayer*>(userData);
		return player->renderAudio(stream, audioData, numFrames);
		}

		void MyErrorCallback(AAudioStream* /stream/, void* /userData/, aaudio_result_t error) {
		printf("Error callback, error=%d\n", error);
		}

		static void usage() {
		AAudioArgsParser::usage();
		printf(" -D{delay} offload delay in frames\n");
		printf(" -P{padding} offload padding in frames\n");
		printf(" -E{frames} frames to notify end of stream\n");
		printf(" -T{seconds} time to run the test\n");
		}

		int main(int argc, char **argv) {
		AAudioArgsParser argParser;
		int delay = 0;
		int padding = 0;
		int streamFrames = 0;
		int timeToRun = DEFAULT_TIME_TO_RUN_IN_SECOND;
		for (int i = 1; i < argc; ++i) {
		const char *arg = argv[i];
		if (argParser.parseArg(arg)) {
		if (arg[0] == '-') {
		char option = arg[1];
		switch (option) {
		case 'D':
		delay = atoi(&arg[2]);
		break;
		case 'P':
		padding = atoi(&arg[2]);
		break;
		case 'E':
		streamFrames = atoi(&arg[2]);
		break;
		case 'T':
		timeToRun = atoi(&arg[2]);
		break;
		default:
		usage();
		exit(EXIT_FAILURE);
		}
		} else {
		usage();
		exit(EXIT_FAILURE);
		}
		}
		}

		// Force to use offload mode
		argParser.setPerformanceMode(AAUDIO_PERFORMANCE_MODE_POWER_SAVING_OFFLOADED);

		OffloadPlayer player(argParser, delay, padding, streamFrames);
		if (auto result = player.open(); result != AAUDIO_OK) {
		printf("Failed to open stream, error=%d\n", result);
		exit(EXIT_FAILURE);
		}

		// Failed to set offload delay and padding will affect the gapless transition between tracks
		// but doesn't affect playback.
		(void) player.setOffloadDelayPadding(delay, padding);

		if (auto result = player.start(); result != AAUDIO_OK) {
		printf("Failed to start stream, error=%d", result);
		exit(EXIT_FAILURE);
		}

		sleep(timeToRun);

		return EXIT_SUCCESS;
		}