| // Copyright 2016 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 REMOTING_CLIENT_VIDEO_RENDERER_H_ |
| #define REMOTING_CLIENT_VIDEO_RENDERER_H_ |
| |
| namespace remoting { |
| |
| class ClientContext; |
| |
| namespace protocol { |
| |
| class FrameConsumer; |
| class FrameStatsConsumer; |
| class SessionConfig; |
| class VideoStub; |
| |
| // VideoRenderer is responsible for decoding and displaying incoming video |
| // stream. This interface is used by ConnectionToHost implementations to |
| // render received video frames. ConnectionToHost may feed encoded frames to the |
| // VideoStub or decode them and pass decoded frames to the FrameConsumer. If the |
| // implementation uses FrameConsumer directly then it must also call |
| // FrameStatsConsumer with FrameStats for each frame. |
| // |
| // TODO(sergeyu): Reconsider this design. |
| class VideoRenderer { |
| public: |
| virtual ~VideoRenderer() {} |
| |
| // Initializes the video renderer. This allows the renderer to be initialized |
| // after it is constructed. Returns true if initialization succeeds and false |
| // otherwise. An implementation that doesn't use this function to initialize |
| // should always return true. |
| // |perf_tracker| must outlive the renderer. |
| virtual bool Initialize(const ClientContext& client_context, |
| protocol::FrameStatsConsumer* stats_consumer) = 0; |
| |
| // Configures the renderer with the supplied |config|. This must be called |
| // exactly once before video data is supplied to the renderer. |
| virtual void OnSessionConfig(const SessionConfig& config) = 0; |
| |
| // Returns the VideoStub interface of this renderer. |
| virtual VideoStub* GetVideoStub() = 0; |
| |
| // Returns the FrameConsumer interface for this renderer. |
| virtual FrameConsumer* GetFrameConsumer() = 0; |
| |
| // Returns the FrameStatsConsumer interface for this renderer. |
| virtual FrameStatsConsumer* GetFrameStatsConsumer() = 0; |
| }; |
| |
| } // namespace protocol |
| } // namespace remoting |
| |
| #endif // REMOTING_CLIENT_VIDEO_RENDERER_H_ |