chromium/components/mirroring/service/media_remoter.h

// 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 COMPONENTS_MIRRORING_SERVICE_MEDIA_REMOTER_H_
#define COMPONENTS_MIRRORING_SERVICE_MEDIA_REMOTER_H_

#include <optional>

#include "base/component_export.h"
#include "base/memory/raw_ptr.h"
#include "media/cast/cast_config.h"
#include "media/mojo/mojom/remoting.mojom.h"
#include "media/mojo/mojom/remoting_common.mojom.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "mojo/public/cpp/system/data_pipe.h"
#include "third_party/openscreen/src/cast/streaming/sender.h"

namespace media::cast {
class CastEnvironment;
}  // namespace media::cast

namespace mirroring {

class RpcDispatcher;
class RemotingSender;

// MediaRemoter remotes media content directly to a Cast Receiver. When
// MediaRemoter is started, it connects itself with a source tab in browser
// through the Mirroring Service mojo interface and allows the browser to access
// this MediaRemoter to start/stop individual remoting sessions, which are
// caused by user actions (i.e., when they somehow indicate a desire to
// enter/leave an immersive video-watching mode).
//
// When a remoting session is started, MediaRemoter will first request that tab
// mirroring be switched into content remoting mode. If granted, it will notify
// the browser that this has succeeded. At this point, two-way RPC binary
// messaging begins, and the MediaRemoter simply forwards messages between the
// browser and the Cast Receiver. The audio/video data streams are delivered
// from the media renderer to the Mirroring Service through mojo datapipes, and
// are then sent out to Cast Receiver through Cast Streaming.
class COMPONENT_EXPORT(MIRRORING_SERVICE) MediaRemoter final
    : public media::mojom::Remoter { … };

}  // namespace mirroring

#endif  // COMPONENTS_MIRRORING_SERVICE_MEDIA_REMOTER_H_