116 lines
4.2 KiB
C++
116 lines
4.2 KiB
C++
/* pcm_in_test.c
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**
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** Copyright 2020, The Android Open Source Project
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** * Neither the name of The Android Open Source Project nor the names of
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** its contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY The Android Open Source Project ``AS IS'' AND
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** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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** ARE DISCLAIMED. IN NO EVENT SHALL The Android Open Source Project BE LIABLE
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** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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** SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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** OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
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** DAMAGE.
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*/
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#include "pcm_test_device.h"
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#include <chrono>
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#include <cstring>
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#include <iostream>
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#include <gtest/gtest.h>
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#include "tinyalsa/pcm.h"
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namespace tinyalsa {
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namespace testing {
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class PcmInTest : public ::testing::Test {
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protected:
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PcmInTest() : pcm_object(nullptr) {}
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virtual ~PcmInTest() = default;
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virtual void SetUp() override {
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pcm_object = pcm_open(kLoopbackCard, kLoopbackCaptureDevice, PCM_IN, &kDefaultConfig);
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ASSERT_NE(pcm_object, nullptr);
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ASSERT_TRUE(pcm_is_ready(pcm_object));
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}
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virtual void TearDown() override {
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ASSERT_EQ(pcm_close(pcm_object), 0);
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}
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static constexpr unsigned int kDefaultChannels = 2;
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static constexpr unsigned int kDefaultSamplingRate = 48000;
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static constexpr unsigned int kDefaultPeriodSize = 1024;
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static constexpr unsigned int kDefaultPeriodCount = 3;
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static constexpr pcm_config kDefaultConfig = {
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.channels = kDefaultChannels,
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.rate = kDefaultSamplingRate,
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.period_size = kDefaultPeriodSize,
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.period_count = kDefaultPeriodCount,
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.format = PCM_FORMAT_S16_LE,
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.start_threshold = 0,
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.stop_threshold = 0,
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.silence_threshold = 0,
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.silence_size = 0,
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};
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pcm* pcm_object;
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};
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TEST_F(PcmInTest, GetDelay) {
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pcm_prepare(pcm_object);
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long delay = pcm_get_delay(pcm_object);
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std::cout << delay << std::endl;
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ASSERT_GE(delay, 0);
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}
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TEST_F(PcmInTest, Readi) {
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constexpr uint32_t read_count = 20;
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size_t buffer_size = pcm_frames_to_bytes(pcm_object, kDefaultConfig.period_size);
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auto buffer = std::make_unique<char[]>(buffer_size);
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int read_frames = 0;
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unsigned int frames = pcm_bytes_to_frames(pcm_object, buffer_size);
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auto start = std::chrono::steady_clock::now();
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for (uint32_t i = 0; i < read_count; ++i) {
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read_frames = pcm_readi(pcm_object, buffer.get(), frames);
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ASSERT_EQ(read_frames, frames);
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}
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std::chrono::duration<double> difference = std::chrono::steady_clock::now() - start;
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std::chrono::milliseconds expected_elapsed_time_ms(frames * read_count /
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(kDefaultConfig.rate / 1000));
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std::cout << difference.count() << std::endl;
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std::cout << expected_elapsed_time_ms.count() << std::endl;
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ASSERT_NEAR(difference.count() * 1000, expected_elapsed_time_ms.count(), 100);
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}
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TEST_F(PcmInTest, Writei) {
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size_t buffer_size = pcm_frames_to_bytes(pcm_object, kDefaultConfig.period_size);
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auto buffer = std::make_unique<char[]>(buffer_size);
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unsigned int frames = pcm_bytes_to_frames(pcm_object, buffer_size);
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ASSERT_EQ(pcm_writei(pcm_object, buffer.get(), frames), -EINVAL);
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}
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} // namespace testing
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} // namespace tinyalsa
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