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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_MEDIA_FRAMELESS_MEDIA_INTERFACE_PROXY_H_
#define CONTENT_BROWSER_MEDIA_FRAMELESS_MEDIA_INTERFACE_PROXY_H_
#include <string>
#include "base/threading/thread_checker.h"
#include "base/unguessable_token.h"
#include "build/build_config.h"
#include "media/media_buildflags.h"
#include "media/mojo/buildflags.h"
#include "media/mojo/mojom/interface_factory.mojom.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "mojo/public/cpp/bindings/receiver_set.h"
#include "mojo/public/cpp/bindings/remote.h"
#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
#include "media/mojo/mojom/video_decoder.mojom.h"
#endif // BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
namespace content {
class RenderProcessHost;
// This implements the media::mojom::InterfaceFactory interface for a
// RenderProcessHostImpl. It does not support creating services that require a
// frame context (ie. CDMs and renderers).
//
// It is used in cases without a frame context, namely by WebRTC, WebCodecs
// (which may be operating in a worker context), and for early querying of
// supported codecs.
class FramelessMediaInterfaceProxy final
: public media::mojom::InterfaceFactory {
public:
explicit FramelessMediaInterfaceProxy(RenderProcessHost* render_process_host);
FramelessMediaInterfaceProxy(const FramelessMediaInterfaceProxy&) = delete;
FramelessMediaInterfaceProxy& operator=(const FramelessMediaInterfaceProxy&) =
delete;
~FramelessMediaInterfaceProxy() final;
void Add(mojo::PendingReceiver<media::mojom::InterfaceFactory> receiver);
// media::mojom::InterfaceFactory implementation.
void CreateAudioDecoder(
mojo::PendingReceiver<media::mojom::AudioDecoder> receiver) final;
void CreateVideoDecoder(
mojo::PendingReceiver<media::mojom::VideoDecoder> receiver,
mojo::PendingRemote<media::mojom::VideoDecoder> dst_video_decoder) final;
#if BUILDFLAG(ALLOW_OOP_VIDEO_DECODER)
void CreateVideoDecoderWithTracker(
mojo::PendingReceiver<media::mojom::VideoDecoder> receiver,
mojo::PendingRemote<media::mojom::VideoDecoderTracker> tracker) final;
#endif // BUILDFLAG(ALLOW_OOP_VIDEO_DECODER)
void CreateAudioEncoder(
mojo::PendingReceiver<media::mojom::AudioEncoder> receiver) final;
void CreateDefaultRenderer(
const std::string& audio_device_id,
mojo::PendingReceiver<media::mojom::Renderer> receiver) final;
#if BUILDFLAG(ENABLE_CAST_RENDERER)
void CreateCastRenderer(
const base::UnguessableToken& overlay_plane_id,
mojo::PendingReceiver<media::mojom::Renderer> receiver) final;
#endif
#if BUILDFLAG(IS_ANDROID)
void CreateFlingingRenderer(
const std::string& presentation_id,
mojo::PendingRemote<media::mojom::FlingingRendererClientExtension>
client_extension,
mojo::PendingReceiver<media::mojom::Renderer> receiver) final;
#endif // BUILDFLAG(IS_ANDROID)
#if BUILDFLAG(IS_WIN)
void CreateMediaFoundationRenderer(
mojo::PendingRemote<media::mojom::MediaLog> media_log_remote,
mojo::PendingReceiver<media::mojom::Renderer> receiver,
mojo::PendingReceiver<media::mojom::MediaFoundationRendererExtension>
renderer_extension_receiver,
mojo::PendingRemote<media::mojom::MediaFoundationRendererClientExtension>
client_extension_remote) final;
#endif // BUILDFLAG(IS_WIN)
void CreateCdm(const media::CdmConfig& cdm_config,
CreateCdmCallback callback) final;
private:
media::mojom::InterfaceFactory* GetMediaInterfaceFactory();
void ConnectToMediaService();
void OnMediaServiceConnectionError();
// Connection to the remote media InterfaceFactory.
mojo::Remote<media::mojom::InterfaceFactory> interface_factory_remote_;
// Connections to the renderer.
mojo::ReceiverSet<media::mojom::InterfaceFactory> receivers_;
#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
// Connection to the InterfaceFactory that lives in a utility process.
// This is only used for out-of-process video decoding and only when the
// FramelessMediaInterfaceProxy is created without a RenderProcessHost
// (e.g., to get the supported video decoder configurations). Note that we
// make this a member instead of a local variable inside CreateVideoDecoder()
// in order to keep the video decoder process alive for the lifetime of the
// FramelessMediaInterfaceProxy.
mojo::Remote<media::mojom::InterfaceFactory> vd_factory_remote_;
#endif // BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
// FramelessMediaInterfaceProxy is fully owned by the RenderProcessHostImpl,
// and the latter never gives up that ownership. Therefore,
// *|render_process_host_| will never be destroyed before it's used by
// *|this|.
const raw_ptr<RenderProcessHost> render_process_host_ = nullptr;
THREAD_CHECKER(thread_checker_);
};
} // namespace content
#endif // CONTENT_BROWSER_MEDIA_FRAMELESS_MEDIA_INTERFACE_PROXY_H_
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