chromium/media/cast/sender/audio_sender.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/cast/sender/audio_sender.h"

#include <utility>

#include "base/check_op.h"
#include "base/functional/bind.h"
#include "base/metrics/histogram_functions.h"
#include "base/trace_event/trace_event.h"
#include "media/cast/common/openscreen_conversion_helpers.h"
#include "media/cast/common/rtp_time.h"
#include "media/cast/common/sender_encoded_frame.h"
#include "media/cast/encoding/audio_encoder.h"
#include "media/cast/sender/frame_sender.h"
#include "third_party/openscreen/src/cast/streaming/sender.h"

namespace media::cast {
namespace {

// UMA histogram for the percentage of dropped audio frames.
constexpr char kHistogramDroppedFrames[] = …;

// UMA histogram for recording when a frame is dropped.
constexpr char kHistogramFrameDropped[] = …;

}  // namespace

AudioSender::AudioSender(scoped_refptr<CastEnvironment> cast_environment,
                         const FrameSenderConfig& audio_config,
                         StatusChangeOnceCallback status_change_cb,
                         std::unique_ptr<openscreen::cast::Sender> sender)
    : … { … }

AudioSender::~AudioSender() { … }

void AudioSender::InsertAudio(std::unique_ptr<AudioBus> audio_bus,
                              base::TimeTicks recorded_time) { … }

void AudioSender::SetTargetPlayoutDelay(
    base::TimeDelta new_target_playout_delay) { … }

base::TimeDelta AudioSender::GetTargetPlayoutDelay() const { … }

int AudioSender::GetEncoderBitrate() const { … }

base::WeakPtr<AudioSender> AudioSender::AsWeakPtr() { … }

AudioSender::AudioSender() = default;

int AudioSender::GetNumberOfFramesInEncoder() const { … }

base::TimeDelta AudioSender::GetEncoderBacklogDuration() const { … }

void AudioSender::OnEncodedAudioFrame(
    std::unique_ptr<SenderEncodedFrame> encoded_frame,
    int samples_skipped) { … }

}  // namespace media::cast