| // 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. |
| |
| #ifndef CONTENT_BROWSER_MEDIA_FLINGING_RENDERER_H_ |
| #define CONTENT_BROWSER_MEDIA_FLINGING_RENDERER_H_ |
| |
| #include "base/callback.h" |
| #include "content/common/content_export.h" |
| #include "media/base/flinging_controller.h" |
| #include "media/base/media_resource.h" |
| #include "media/base/media_status_observer.h" |
| #include "media/base/renderer.h" |
| #include "media/base/renderer_client.h" |
| #include "media/mojo/interfaces/renderer_extensions.mojom.h" |
| #include "url/gurl.h" |
| |
| namespace content { |
| |
| class FlingingRendererTest; |
| class RenderFrameHost; |
| |
| // FlingingRenderer adapts from the media::Renderer interface to the |
| // MediaController interface. The MediaController is used to issue simple media |
| // playback commands. In this case, the media we are controlling should be an |
| // already existing RemotingCastSession, which should have been initiated by a |
| // blink::RemotePlayback object, using the PresentationService. |
| class CONTENT_EXPORT FlingingRenderer : public media::Renderer, |
| media::MediaStatusObserver { |
| public: |
| using ClientExtensionPtr = media::mojom::FlingingRendererClientExtensionPtr; |
| |
| // Helper method to create a FlingingRenderer from an already existing |
| // presentation ID. |
| // Returns nullptr if there was an error getting the MediaControllor for the |
| // given presentation ID. |
| static std::unique_ptr<FlingingRenderer> Create( |
| RenderFrameHost* render_frame_host, |
| const std::string& presentation_id, |
| ClientExtensionPtr client_extension); |
| |
| ~FlingingRenderer() override; |
| |
| // media::Renderer implementation |
| void Initialize(media::MediaResource* media_resource, |
| media::RendererClient* client, |
| const media::PipelineStatusCB& init_cb) override; |
| void SetCdm(media::CdmContext* cdm_context, |
| const media::CdmAttachedCB& cdm_attached_cb) override; |
| void Flush(const base::Closure& flush_cb) override; |
| void StartPlayingFrom(base::TimeDelta time) override; |
| void SetPlaybackRate(double playback_rate) override; |
| void SetVolume(float volume) override; |
| base::TimeDelta GetMediaTime() override; |
| |
| // media::MediaStatusObserver implementation. |
| void OnMediaStatusUpdated(const media::MediaStatus& status) override; |
| |
| private: |
| friend class FlingingRendererTest; |
| using PlayState = media::MediaStatus::State; |
| |
| explicit FlingingRenderer( |
| std::unique_ptr<media::FlingingController> controller, |
| ClientExtensionPtr client_extension); |
| |
| void SetTargetPlayState(PlayState state); |
| |
| // The state that we expect the remotely playing video to transition into. |
| // This is used to differentiate between state changes that originated from |
| // this device versus external devices. |
| PlayState target_play_state_ = PlayState::UNKNOWN; |
| bool reached_target_play_state_ = false; |
| |
| media::RendererClient* client_; |
| |
| ClientExtensionPtr client_extension_; |
| |
| std::unique_ptr<media::FlingingController> controller_; |
| |
| DISALLOW_COPY_AND_ASSIGN(FlingingRenderer); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_MEDIA_FLINGING_RENDERER_H_ |