track_audio_renderer.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.

#include "third_party/blink/renderer/modules/mediastream/track_audio_renderer.h"

#include <utility>

#include "base/functional/callback_helpers.h"
#include "base/location.h"
#include "base/logging.h"
#include "base/metrics/histogram_macros.h"
#include "base/synchronization/lock.h"
#include "base/trace_event/trace_event.h"
#include "media/audio/audio_sink_parameters.h"
#include "media/base/audio_bus.h"
#include "media/base/audio_latency.h"
#include "media/base/audio_shifter.h"
#include "third_party/blink/public/platform/modules/mediastream/web_media_stream_track.h"
#include "third_party/blink/public/platform/platform.h"
#include "third_party/blink/public/web/web_local_frame.h"
#include "third_party/blink/renderer/core/frame/local_frame.h"
#include "third_party/blink/renderer/platform/mediastream/media_stream_audio_track.h"
#include "third_party/blink/renderer/platform/scheduler/public/post_cross_thread_task.h"
#include "third_party/blink/renderer/platform/wtf/cross_thread_copier_base.h"
#include "third_party/blink/renderer/platform/wtf/cross_thread_functional.h"

namespace WTF {

template <>
struct CrossThreadCopier<media::AudioParameters> { … };

}  // namespace WTF

namespace blink {

namespace {

// Translates |num_samples_rendered| into a TimeDelta duration and adds it to
// |prior_elapsed_render_time|.
base::TimeDelta ComputeTotalElapsedRenderTime(
    base::TimeDelta prior_elapsed_render_time,
    int64_t num_samples_rendered,
    int sample_rate) { … }

WebLocalFrame* ToWebLocalFrame(LocalFrame* frame) { … }

bool RequiresSinkReconfig(const media::AudioParameters& old_format,
                          const media::AudioParameters& new_format) { … }

}  // namespace

TrackAudioRenderer::PendingData::PendingData(const media::AudioBus& audio_bus,
                                             base::TimeTicks ref_time)
    : … { … }

TrackAudioRenderer::PendingReconfig::PendingReconfig(
    const media::AudioParameters& format,
    int reconfig_number)
    : … { … }

// media::AudioRendererSink::RenderCallback implementation
int TrackAudioRenderer::Render(base::TimeDelta delay,
                               base::TimeTicks delay_timestamp,
                               const media::AudioGlitchInfo& glitch_info,
                               media::AudioBus* audio_bus) { … }

void TrackAudioRenderer::OnRenderErrorCrossThread() { … }

void TrackAudioRenderer::OnRenderError() { … }

// WebMediaStreamAudioSink implementation
void TrackAudioRenderer::OnData(const media::AudioBus& audio_bus,
                                base::TimeTicks reference_time) { … }

void TrackAudioRenderer::OnSetFormat(const media::AudioParameters& params) { … }

TrackAudioRenderer::TrackAudioRenderer(
    MediaStreamComponent* audio_component,
    LocalFrame& playout_frame,
    const String& device_id,
    base::RepeatingClosure on_render_error_callback)
    : … { … }

TrackAudioRenderer::~TrackAudioRenderer() { … }

void TrackAudioRenderer::Start() { … }

void TrackAudioRenderer::Stop() { … }

void TrackAudioRenderer::Play() { … }

void TrackAudioRenderer::Pause() { … }

void TrackAudioRenderer::SetVolume(float volume) { … }

base::TimeDelta TrackAudioRenderer::GetCurrentRenderTime() { … }

void TrackAudioRenderer::SwitchOutputDevice(
    const std::string& device_id,
    media::OutputDeviceStatusCB callback) { … }

void TrackAudioRenderer::MaybeStartSink(bool reconfiguring) { … }

void TrackAudioRenderer::ReconfigureSink(
    const media::AudioParameters new_format,
    int reconfig_number) { … }

void TrackAudioRenderer::CreateAudioShifter(bool reconfiguring) { … }

void TrackAudioRenderer::HaltAudioFlow_Locked() { … }

void TrackAudioRenderer::ConsumePendingReconfigsFront_Locked() { … }

void TrackAudioRenderer::PushDataIntoShifter_Locked(
    std::unique_ptr<media::AudioBus> data,
    base::TimeTicks reference_time) { … }

int TrackAudioRenderer::TotalFramesPushedForTesting() const { … }

int TrackAudioRenderer::FramesInAudioShifterForTesting() const { … }

}  // namespace blink
chromium/third_party/blink/renderer/modules/mediastream/track_audio_renderer.cc
