| // Copyright 2023 The Cobalt Authors. All Rights Reserved. |
| // |
| // 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. |
| |
| #include <tuple> |
| #include <vector> |
| |
| #include "starboard/common/string.h" |
| #include "starboard/shared/starboard/player/filter/audio_resampler.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace starboard { |
| namespace shared { |
| namespace starboard { |
| namespace player { |
| namespace filter { |
| namespace testing { |
| namespace { |
| |
| using ::testing::Combine; |
| using ::testing::ValuesIn; |
| |
| typedef ::testing::tuple<SbMediaAudioSampleType, |
| SbMediaAudioFrameStorageType, |
| int, |
| SbMediaAudioSampleType, |
| SbMediaAudioFrameStorageType, |
| int, |
| int> |
| AudioResamplerTestParam; |
| |
| SbMediaAudioSampleType kSampleTypesToTest[] = { |
| kSbMediaAudioSampleTypeInt16Deprecated, |
| kSbMediaAudioSampleTypeFloat32, |
| }; |
| SbMediaAudioFrameStorageType kStorageTypesToTest[] = { |
| kSbMediaAudioFrameStorageTypeInterleaved, |
| kSbMediaAudioFrameStorageTypePlanar, |
| }; |
| int kSampleRatesToTest[] = {22050, 44100, 48000}; |
| int kChannelsToTest[] = {1, 2, 6}; |
| |
| const char* ConvertSampleTypeToString(SbMediaAudioSampleType sample_type) { |
| if (sample_type == kSbMediaAudioSampleTypeInt16Deprecated) { |
| return "int16"; |
| } else if (sample_type == kSbMediaAudioSampleTypeFloat32) { |
| return "float32"; |
| } |
| SB_NOTREACHED(); |
| return ""; |
| } |
| |
| const char* ConvertStorageTypeToString( |
| SbMediaAudioFrameStorageType storage_type) { |
| if (storage_type == kSbMediaAudioFrameStorageTypeInterleaved) { |
| return "interleaved"; |
| } else if (storage_type == kSbMediaAudioFrameStorageTypePlanar) { |
| return "planar"; |
| } |
| SB_NOTREACHED(); |
| return ""; |
| } |
| |
| class AudioResamplerTest |
| : public ::testing::TestWithParam<AudioResamplerTestParam> { |
| protected: |
| AudioResamplerTest() { |
| const AudioResamplerTestParam& param = GetParam(); |
| source_sample_type_ = std::get<0>(param); |
| source_storage_type_ = std::get<1>(param); |
| source_sample_rate_ = std::get<2>(param); |
| destination_sample_type_ = std::get<3>(param); |
| destination_storage_type_ = std::get<4>(param); |
| destination_sample_rate_ = std::get<5>(param); |
| channels_ = std::get<6>(param); |
| |
| GenerateAudioInputs(); |
| } |
| |
| void GenerateAudioInputs() { |
| const int kNumberOfInputs = 40; |
| const int kSamplesPerInput = 1024; |
| |
| int total_frames = 0; |
| for (int i = 0; i < kNumberOfInputs; i++) { |
| int sample_size = |
| source_sample_type_ == kSbMediaAudioSampleTypeInt16Deprecated |
| ? sizeof(int16_t) |
| : sizeof(float); |
| int audio_size = kSamplesPerInput * channels_ * sample_size; |
| scoped_refptr<DecodedAudio> input = new DecodedAudio( |
| channels_, source_sample_type_, source_storage_type_, |
| kSbTimeSecond * total_frames / source_sample_rate_, audio_size); |
| total_frames += kSamplesPerInput; |
| inputs_.push_back(input); |
| } |
| } |
| |
| SbMediaAudioSampleType source_sample_type_; |
| SbMediaAudioFrameStorageType source_storage_type_; |
| int source_sample_rate_; |
| SbMediaAudioSampleType destination_sample_type_; |
| SbMediaAudioFrameStorageType destination_storage_type_; |
| int destination_sample_rate_; |
| int channels_; |
| |
| std::vector<scoped_refptr<DecodedAudio>> inputs_; |
| }; |
| |
| TEST_P(AudioResamplerTest, SunnyDay) { |
| scoped_ptr<AudioResampler> resampler = AudioResampler::Create( |
| source_sample_type_, source_storage_type_, source_sample_rate_, |
| destination_sample_type_, destination_storage_type_, |
| destination_sample_rate_, channels_); |
| |
| int total_input_frames = 0; |
| std::vector<scoped_refptr<DecodedAudio>> outputs; |
| for (auto input : inputs_) { |
| scoped_refptr<DecodedAudio> output = resampler->Resample(input); |
| total_input_frames += input->frames(); |
| if (output) { |
| outputs.push_back(output); |
| } |
| } |
| scoped_refptr<DecodedAudio> output = resampler->WriteEndOfStream(); |
| if (output) { |
| outputs.push_back(output); |
| } |
| |
| // Theoretically, if the input is too small, the last output could consist |
| // of multiple inputs. But as our audio unit is always larger than resampler |
| // block size. The amount of outputs should be always same as the inputs, and |
| // they should have same timestamp. |
| EXPECT_EQ(inputs_.size(), outputs.size()); |
| int total_output_frames = 0; |
| for (int i = 0; i < outputs.size(); i++) { |
| EXPECT_EQ(inputs_[i]->timestamp(), outputs[i]->timestamp()); |
| total_output_frames += outputs[i]->frames(); |
| EXPECT_NEAR( |
| inputs_[i]->frames() * destination_sample_rate_ / source_sample_rate_, |
| outputs[i]->frames(), 5); |
| } |
| EXPECT_NEAR( |
| total_input_frames * destination_sample_rate_ / source_sample_rate_, |
| total_output_frames, 5); |
| } |
| |
| std::string GetTestConfigName( |
| ::testing::TestParamInfo<AudioResamplerTestParam> info) { |
| const AudioResamplerTestParam& param = info.param; |
| SbMediaAudioSampleType source_sample_type = std::get<0>(param); |
| SbMediaAudioFrameStorageType source_storage_type = std::get<1>(param); |
| int source_sample_rate = std::get<2>(param); |
| SbMediaAudioSampleType destination_sample_type = std::get<3>(param); |
| SbMediaAudioFrameStorageType destination_storage_type = std::get<4>(param); |
| int destination_sample_rate = std::get<5>(param); |
| int channels = std::get<6>(param); |
| std::string name = FormatString( |
| "%s_%s_%d_to_%s_%s_%d_channels_%d", |
| ConvertSampleTypeToString(source_sample_type), |
| ConvertStorageTypeToString(source_storage_type), source_sample_rate, |
| ConvertSampleTypeToString(destination_sample_type), |
| ConvertStorageTypeToString(destination_storage_type), |
| destination_sample_rate, channels); |
| return name; |
| } |
| |
| INSTANTIATE_TEST_CASE_P(AudioResamplerTests, |
| AudioResamplerTest, |
| Combine(ValuesIn(kSampleTypesToTest), |
| ValuesIn(kStorageTypesToTest), |
| ValuesIn(kSampleRatesToTest), |
| ValuesIn(kSampleTypesToTest), |
| ValuesIn(kStorageTypesToTest), |
| ValuesIn(kSampleRatesToTest), |
| ValuesIn(kChannelsToTest)), |
| GetTestConfigName); |
| |
| } // namespace |
| } // namespace testing |
| } // namespace filter |
| } // namespace player |
| } // namespace starboard |
| } // namespace shared |
| } // namespace starboard |