| // Copyright 2014 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_SOFTWARE_VIDEO_RENDERER_H_ |
| #define REMOTING_CLIENT_SOFTWARE_VIDEO_RENDERER_H_ |
| |
| #include "base/memory/ref_counted.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "remoting/client/chromoting_stats.h" |
| #include "remoting/client/frame_consumer_proxy.h" |
| #include "remoting/client/frame_producer.h" |
| #include "remoting/client/video_renderer.h" |
| #include "third_party/webrtc/modules/desktop_capture/desktop_geometry.h" |
| |
| namespace base { |
| class SingleThreadTaskRunner; |
| } // namespace base |
| |
| namespace remoting { |
| |
| class ChromotingStats; |
| |
| // Implementation of VideoRenderer interface that decodes frame on CPU (on a |
| // decode thread) and then passes decoded frames to a FrameConsumer. |
| // FrameProducer methods can be called on any thread. All other methods must be |
| // called on the main thread. Owned must ensure that this class outlives |
| // FrameConsumer (which calls FrameProducer interface). |
| class SoftwareVideoRenderer : public VideoRenderer, |
| public FrameProducer, |
| public base::NonThreadSafe { |
| public: |
| // Creates an update decoder on |main_task_runner_| and |decode_task_runner_|, |
| // outputting to |consumer|. The |main_task_runner_| is responsible for |
| // receiving and queueing packets. The |decode_task_runner_| is responsible |
| // for decoding the video packets. |
| // TODO(wez): Replace the ref-counted proxy with an owned FrameConsumer. |
| SoftwareVideoRenderer( |
| scoped_refptr<base::SingleThreadTaskRunner> main_task_runner, |
| scoped_refptr<base::SingleThreadTaskRunner> decode_task_runner, |
| scoped_refptr<FrameConsumerProxy> consumer); |
| virtual ~SoftwareVideoRenderer(); |
| |
| // VideoRenderer implementation. |
| virtual void Initialize(const protocol::SessionConfig& config) OVERRIDE; |
| virtual ChromotingStats* GetStats() OVERRIDE; |
| virtual void ProcessVideoPacket(scoped_ptr<VideoPacket> packet, |
| const base::Closure& done) OVERRIDE; |
| |
| // FrameProducer implementation. These methods may be called before we are |
| // Initialize()d, or we know the source screen size. These methods may be |
| // called on any thread. |
| // |
| // TODO(sergeyu): On Android a separate display thread is used for drawing. |
| // FrameConsumer calls FrameProducer on that thread. Can we avoid having a |
| // separate display thread? E.g. can we do everything on the decode thread? |
| virtual void DrawBuffer(webrtc::DesktopFrame* buffer) OVERRIDE; |
| virtual void InvalidateRegion(const webrtc::DesktopRegion& region) OVERRIDE; |
| virtual void RequestReturnBuffers(const base::Closure& done) OVERRIDE; |
| virtual void SetOutputSizeAndClip( |
| const webrtc::DesktopSize& view_size, |
| const webrtc::DesktopRect& clip_area) OVERRIDE; |
| |
| private: |
| class Core; |
| |
| // Callback method when a VideoPacket is processed. |decode_start| contains |
| // the timestamp when the packet will start to be processed. |
| void OnPacketDone(base::Time decode_start, const base::Closure& done); |
| |
| scoped_refptr<base::SingleThreadTaskRunner> decode_task_runner_; |
| scoped_ptr<Core> core_; |
| |
| ChromotingStats stats_; |
| |
| // Keep track of the most recent sequence number bounced back from the host. |
| int64 latest_sequence_number_; |
| |
| base::WeakPtrFactory<SoftwareVideoRenderer> weak_factory_; |
| |
| DISALLOW_COPY_AND_ASSIGN(SoftwareVideoRenderer); |
| }; |
| |
| } // namespace remoting |
| |
| #endif // REMOTING_CLIENT_SOFTWARE_VIDEO_RENDERER_H_ |