chromium/media/base/audio_shifter.cc

// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "media/base/audio_shifter.h"

#include <algorithm>
#include <cmath>
#include <utility>

#include "base/containers/circular_deque.h"
#include "base/functional/bind.h"
#include "base/logging.h"
#include "base/trace_event/trace_event.h"
#include "media/base/audio_bus.h"

namespace media {

// return true if x is between a and b.
static bool between(double x, double a, double b) { … }

class ClockSmoother { … };

AudioShifter::AudioQueueEntry::AudioQueueEntry(
    base::TimeTicks target_playout_time,
    std::unique_ptr<AudioBus> audio)
    : … { … }

AudioShifter::AudioQueueEntry::AudioQueueEntry(AudioQueueEntry&& other) =
    default;

AudioShifter::AudioQueueEntry::~AudioQueueEntry() = default;

AudioShifter::AudioShifter(base::TimeDelta max_buffer_size,
                           base::TimeDelta clock_accuracy,
                           base::TimeDelta adjustment_time,
                           int rate,
                           int channels)
    : … { … }

AudioShifter::~AudioShifter() = default;

void AudioShifter::Push(std::unique_ptr<AudioBus> input,
                        base::TimeTicks playout_time) { … }

void AudioShifter::Pull(AudioBus* output,
                        base::TimeTicks playout_time) { … }

void AudioShifter::Zero(AudioBus* output) { … }

void AudioShifter::ResamplerCallback(int frame_delay, AudioBus* destination) { … }

}  // namespace media