media_stream_audio_destination_handler.cc

// Copyright 2022 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/webaudio/media_stream_audio_destination_handler.h"

#include "base/synchronization/lock.h"
#include "third_party/blink/public/platform/modules/webrtc/webrtc_logging.h"
#include "third_party/blink/renderer/modules/webaudio/audio_node_input.h"
#include "third_party/blink/renderer/modules/webaudio/base_audio_context.h"
#include "third_party/blink/renderer/modules/webaudio/media_stream_audio_destination_node.h"
#include "third_party/blink/renderer/platform/bindings/exception_messages.h"
#include "third_party/blink/renderer/platform/bindings/exception_state.h"
#include "third_party/blink/renderer/platform/instrumentation/tracing/trace_event.h"

namespace blink {

namespace {

// Channel counts greater than 8 are ignored by some audio tracks/sinks (see
// WebAudioMediaStreamSource), so we set a limit here to avoid anything that
// could cause a crash.
constexpr uint32_t kMaxChannelCountSupported = …;

}  // namespace

MediaStreamAudioDestinationHandler::MediaStreamAudioDestinationHandler(
    AudioNode& node,
    uint32_t number_of_channels)
    : … { … }

scoped_refptr<MediaStreamAudioDestinationHandler>
MediaStreamAudioDestinationHandler::Create(AudioNode& node,
                                           uint32_t number_of_channels) { … }

MediaStreamAudioDestinationHandler::~MediaStreamAudioDestinationHandler() { … }

void MediaStreamAudioDestinationHandler::Process(uint32_t number_of_frames) { … }

void MediaStreamAudioDestinationHandler::SetChannelCount(
    unsigned channel_count,
    ExceptionState& exception_state) { … }

uint32_t MediaStreamAudioDestinationHandler::MaxChannelCount() const { … }

void MediaStreamAudioDestinationHandler::PullInputs(
    uint32_t frames_to_process) { … }

void MediaStreamAudioDestinationHandler::CheckNumberOfChannelsForInput(
    AudioNodeInput* input) { … }

void MediaStreamAudioDestinationHandler::UpdatePullStatusIfNeeded() { … }

void MediaStreamAudioDestinationHandler::SendLogMessage(const String& message) { … }

}  // namespace blink
chromium/third_party/blink/renderer/modules/webaudio/media_stream_audio_destination_handler.cc
