blob: 50362670e66703ea709d2a7722a0d249fa9e864d [file] [log] [blame]
// Copyright 2018 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <cstddef>
#include <memory>
#include "base/macros.h"
#include "content/common/content_export.h"
#include "content/common/media/renderer_audio_output_stream_factory.mojom.h"
namespace media {
class AudioSystem;
} // namespace media
namespace content {
class MediaStreamManager;
class RenderFrameHost;
// This class is related to ForwardingAudioStreamFactory as follows:
// WebContentsImpl <-- RenderFrameHostImpl
// ^ ^
// | |
// ForwardingAudioStreamFactory RenderFrameAudioOutputStreamFactory
// ^ ^
// | |
// FASF::Core <-- RFAOSF::Core
// Both FASF::Core and RFAOSF::Core live on (and are destructed on) the IO
// thread. A weak pointer to ForwardingAudioStreamFactory is used since
// WebContentsImpl is sometimes destructed shortly before RenderFrameHostImpl.
// This class takes care of stream requests from a render frame. It verifies
// that the stream creation is allowed and then forwards the request to the
// appropriate ForwardingAudioStreamFactory. It should be constructed and
// destructed on the UI thread, but will process mojo messages on the IO thread.
class CONTENT_EXPORT RenderFrameAudioOutputStreamFactory final {
RenderFrameHost* frame,
media::AudioSystem* audio_system,
MediaStreamManager* media_stream_manager,
mojom::RendererAudioOutputStreamFactoryRequest request);
size_t CurrentNumberOfProvidersForTesting();
class Core;
std::unique_ptr<Core> core_;
} // namespace content