audio_encoder_opus_unittest.cc | Explore in Territory

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/40285824): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif

#include "remoting/codec/audio_encoder_opus.h"

#include <stddef.h>
#include <stdint.h>

#include <cmath>
#include <memory>
#include <numbers>
#include <utility>

#include "base/logging.h"
#include "remoting/codec/audio_decoder_opus.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace remoting {

namespace {

// Maximum value that can be encoded in a 16-bit signed sample.
const int kMaxSampleValue = …;

const int kChannels = …;

// Phase shift between left and right channels.
const double kChannelPhaseShift = …;

// The sampling rate that OPUS uses internally and that we expect to get
// from the decoder.
const AudioPacket_SamplingRate kDefaultSamplingRate =
    AudioPacket::SAMPLING_RATE_48000;

// Maximum latency expected from the encoder.
const int kMaxLatencyMs = …;

// When verifying results ignore the first 1k samples. This is necessary because
// it takes some time for the codec to adjust for the input signal.
const int kSkippedFirstSamples = …;

// Maximum standard deviation of the difference between original and decoded
// signals as a proportion of kMaxSampleValue. For two unrelated signals this
// difference will be close to 1.0, even for signals that differ only slightly.
// The value is chosen such that all the tests pass normally, but fail with
// small changes (e.g. one sample shift between signals).
const double kMaxSignalDeviation = …;

}  // namespace

class OpusAudioEncoderTest : public testing::Test { … };

TEST_F(OpusAudioEncoderTest, CreateAndDestroy) { … }

TEST_F(OpusAudioEncoderTest, NoResampling) { … }

TEST_F(OpusAudioEncoderTest, Resampling) { … }

TEST_F(OpusAudioEncoderTest, BufferSizeAndResampling) { … }

}  // namespace remoting
chromium/remoting/codec/audio_encoder_opus_unittest.cc
