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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef REMOTING_CLIENT_PLUGIN_MEDIA_SOURCE_VIDEO_RENDERER_H_ | |
| 6 #define REMOTING_CLIENT_PLUGIN_MEDIA_SOURCE_VIDEO_RENDERER_H_ | |
| 7 | |
| 8 #include <string> | |
| 9 | |
| 10 #include "base/basictypes.h" | |
| 11 #include "base/callback.h" | |
| 12 #include "base/memory/scoped_ptr.h" | |
| 13 #include "remoting/client/chromoting_stats.h" | |
| 14 #include "remoting/client/video_renderer.h" | |
| 15 #include "third_party/webrtc/modules/desktop_capture/desktop_geometry.h" | |
| 16 #include "third_party/webrtc/modules/desktop_capture/desktop_region.h" | |
| 17 | |
| 18 namespace remoting { | |
| 19 | |
| 20 // VideoRenderer implementation that packs data into a WebM stream that can be | |
| 21 // passed to <video> tag using MediaSource API. | |
| 22 class MediaSourceVideoRenderer : public VideoRenderer { | |
| 23 public: | |
| 24 class Delegate { | |
| 25 public: | |
| 26 Delegate() {} | |
| 27 virtual ~Delegate() {} | |
| 28 | |
| 29 // Called when stream size changes. | |
| 30 virtual void OnMediaSourceSize(const webrtc::DesktopSize& size, | |
| 31 const webrtc::DesktopVector& dpi) = 0; | |
| 32 | |
| 33 // Called when desktop shape changes. | |
| 34 virtual void OnMediaSourceShape(const webrtc::DesktopRegion& shape) = 0; | |
| 35 | |
| 36 // Called when the MediaSource needs to be reset (e.g. because screen size | |
| 37 // has changed). | |
| 38 virtual void OnMediaSourceReset(const std::string& format) = 0; | |
| 39 | |
| 40 // Called when new data becomes available. | |
| 41 virtual void OnMediaSourceData(uint8_t* buffer, size_t buffer_size, | |
| 42 bool keyframe) = 0; | |
| 43 }; | |
| 44 | |
| 45 explicit MediaSourceVideoRenderer(Delegate* delegate); | |
| 46 ~MediaSourceVideoRenderer() override; | |
| 47 | |
| 48 // VideoRenderer interface. | |
| 49 void Initialize(const protocol::SessionConfig& config) override; | |
| 50 ChromotingStats* GetStats() override; | |
| 51 void ProcessVideoPacket(scoped_ptr<VideoPacket> packet, | |
| 52 const base::Closure& done) override; | |
| 53 | |
| 54 private: | |
| 55 // Helper class used to generate WebM stream. | |
| 56 class VideoWriter; | |
| 57 | |
| 58 Delegate* delegate_; | |
| 59 | |
| 60 std::string format_string_; | |
| 61 const char* codec_id_; | |
| 62 | |
| 63 scoped_ptr<VideoWriter> writer_; | |
| 64 webrtc::DesktopVector frame_dpi_; | |
| 65 webrtc::DesktopRegion desktop_shape_; | |
| 66 | |
| 67 ChromotingStats stats_; | |
| 68 int64 latest_sequence_number_; | |
| 69 | |
| 70 DISALLOW_COPY_AND_ASSIGN(MediaSourceVideoRenderer); | |
| 71 }; | |
| 72 | |
| 73 } // namespace remoting | |
| 74 | |
| 75 #endif // REMOTING_CLIENT_PLUGIN_MEDIA_SOURCE_VIDEO_RENDERER_H_ | |
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