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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // VideoCaptureImpl represents a capture device in renderer process. It provides | 5 // VideoCaptureImpl represents a capture device in renderer process. It provides |
6 // interfaces for clients to Start/Stop capture. It also communicates to clients | 6 // interfaces for clients to Start/Stop capture. It also communicates to clients |
7 // when buffer is ready, state of capture device is changed. | 7 // when buffer is ready, state of capture device is changed. |
8 | 8 |
9 #ifndef CONTENT_RENDERER_MEDIA_VIDEO_CAPTURE_IMPL_H_ | 9 #ifndef CONTENT_RENDERER_MEDIA_VIDEO_CAPTURE_IMPL_H_ |
10 #define CONTENT_RENDERER_MEDIA_VIDEO_CAPTURE_IMPL_H_ | 10 #define CONTENT_RENDERER_MEDIA_VIDEO_CAPTURE_IMPL_H_ |
11 | 11 |
12 #include <list> | 12 #include <list> |
13 #include <map> | 13 #include <map> |
14 | 14 |
15 #include "content/common/content_export.h" | 15 #include "content/common/content_export.h" |
16 #include "content/common/media/video_capture.h" | 16 #include "content/common/media/video_capture.h" |
17 #include "content/renderer/media/video_capture_message_filter.h" | 17 #include "content/renderer/media/video_capture_message_filter.h" |
18 #include "media/video/capture/video_capture.h" | 18 #include "media/video/capture/video_capture.h" |
| 19 #include "media/video/capture/video_capture_types.h" |
19 | 20 |
20 namespace base { | 21 namespace base { |
21 class MessageLoopProxy; | 22 class MessageLoopProxy; |
22 } | 23 } |
23 | 24 |
24 class CONTENT_EXPORT VideoCaptureImpl | 25 class CONTENT_EXPORT VideoCaptureImpl |
25 : public media::VideoCapture, public VideoCaptureMessageFilter::Delegate { | 26 : public media::VideoCapture, public VideoCaptureMessageFilter::Delegate { |
26 public: | 27 public: |
27 // media::VideoCapture interface. | 28 // media::VideoCapture interface. |
28 virtual void StartCapture(media::VideoCapture::EventHandler* handler, | 29 virtual void StartCapture( |
29 const VideoCaptureCapability& capability) OVERRIDE; | 30 media::VideoCapture::EventHandler* handler, |
| 31 const media::VideoCaptureCapability& capability) OVERRIDE; |
30 virtual void StopCapture(media::VideoCapture::EventHandler* handler) OVERRIDE; | 32 virtual void StopCapture(media::VideoCapture::EventHandler* handler) OVERRIDE; |
31 virtual void FeedBuffer(scoped_refptr<VideoFrameBuffer> buffer) OVERRIDE; | 33 virtual void FeedBuffer(scoped_refptr<VideoFrameBuffer> buffer) OVERRIDE; |
32 virtual bool CaptureStarted() OVERRIDE; | 34 virtual bool CaptureStarted() OVERRIDE; |
33 virtual int CaptureWidth() OVERRIDE; | 35 virtual int CaptureWidth() OVERRIDE; |
34 virtual int CaptureHeight() OVERRIDE; | 36 virtual int CaptureHeight() OVERRIDE; |
35 virtual int CaptureFrameRate() OVERRIDE; | 37 virtual int CaptureFrameRate() OVERRIDE; |
36 | 38 |
37 // VideoCaptureMessageFilter::Delegate interface. | 39 // VideoCaptureMessageFilter::Delegate interface. |
38 virtual void OnBufferCreated(base::SharedMemoryHandle handle, | 40 virtual void OnBufferCreated(base::SharedMemoryHandle handle, |
39 int length, int buffer_id) OVERRIDE; | 41 int length, int buffer_id) OVERRIDE; |
40 virtual void OnBufferReceived(int buffer_id, base::Time timestamp) OVERRIDE; | 42 virtual void OnBufferReceived(int buffer_id, base::Time timestamp) OVERRIDE; |
41 virtual void OnStateChanged(video_capture::State state) OVERRIDE; | 43 virtual void OnStateChanged(video_capture::State state) OVERRIDE; |
42 virtual void OnDeviceInfoReceived( | 44 virtual void OnDeviceInfoReceived( |
43 const media::VideoCaptureParams& device_info) OVERRIDE; | 45 const media::VideoCaptureParams& device_info) OVERRIDE; |
44 virtual void OnDelegateAdded(int32 device_id) OVERRIDE; | 46 virtual void OnDelegateAdded(int32 device_id) OVERRIDE; |
45 | 47 |
46 private: | 48 private: |
47 friend class VideoCaptureImplManager; | 49 friend class VideoCaptureImplManager; |
48 friend class VideoCaptureImplTest; | 50 friend class VideoCaptureImplTest; |
49 friend class MockVideoCaptureImpl; | 51 friend class MockVideoCaptureImpl; |
50 | 52 |
51 struct DIBBuffer; | 53 struct DIBBuffer; |
52 | 54 |
53 VideoCaptureImpl(media::VideoCaptureSessionId id, | 55 VideoCaptureImpl(media::VideoCaptureSessionId id, |
54 base::MessageLoopProxy* capture_message_loop_proxy, | 56 base::MessageLoopProxy* capture_message_loop_proxy, |
55 VideoCaptureMessageFilter* filter); | 57 VideoCaptureMessageFilter* filter); |
56 virtual ~VideoCaptureImpl(); | 58 virtual ~VideoCaptureImpl(); |
57 | 59 |
58 void DoStartCapture(media::VideoCapture::EventHandler* handler, | 60 void DoStartCapture(media::VideoCapture::EventHandler* handler, |
59 const VideoCaptureCapability& capability); | 61 const media::VideoCaptureCapability& capability); |
60 void DoStopCapture(media::VideoCapture::EventHandler* handler); | 62 void DoStopCapture(media::VideoCapture::EventHandler* handler); |
61 void DoFeedBuffer(scoped_refptr<VideoFrameBuffer> buffer); | 63 void DoFeedBuffer(scoped_refptr<VideoFrameBuffer> buffer); |
62 | 64 |
63 void DoBufferCreated(base::SharedMemoryHandle handle, | 65 void DoBufferCreated(base::SharedMemoryHandle handle, |
64 int length, int buffer_id); | 66 int length, int buffer_id); |
65 void DoBufferReceived(int buffer_id, base::Time timestamp); | 67 void DoBufferReceived(int buffer_id, base::Time timestamp); |
66 void DoStateChanged(video_capture::State state); | 68 void DoStateChanged(video_capture::State state); |
67 void DoDeviceInfoReceived(const media::VideoCaptureParams& device_info); | 69 void DoDeviceInfoReceived(const media::VideoCaptureParams& device_info); |
68 void DoDelegateAdded(int32 device_id); | 70 void DoDelegateAdded(int32 device_id); |
69 | 71 |
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82 | 84 |
83 scoped_refptr<VideoCaptureMessageFilter> message_filter_; | 85 scoped_refptr<VideoCaptureMessageFilter> message_filter_; |
84 scoped_refptr<base::MessageLoopProxy> capture_message_loop_proxy_; | 86 scoped_refptr<base::MessageLoopProxy> capture_message_loop_proxy_; |
85 scoped_refptr<base::MessageLoopProxy> io_message_loop_proxy_; | 87 scoped_refptr<base::MessageLoopProxy> io_message_loop_proxy_; |
86 int device_id_; | 88 int device_id_; |
87 | 89 |
88 // Pool of DIBs. | 90 // Pool of DIBs. |
89 typedef std::map<int /* buffer_id */, DIBBuffer*> CachedDIB; | 91 typedef std::map<int /* buffer_id */, DIBBuffer*> CachedDIB; |
90 CachedDIB cached_dibs_; | 92 CachedDIB cached_dibs_; |
91 | 93 |
92 typedef std::map<media::VideoCapture::EventHandler*, VideoCaptureCapability> | 94 typedef std::map<media::VideoCapture::EventHandler*, |
93 ClientInfo; | 95 media::VideoCaptureCapability> ClientInfo; |
94 ClientInfo clients_; | 96 ClientInfo clients_; |
95 | 97 |
96 ClientInfo clients_pending_on_filter_; | 98 ClientInfo clients_pending_on_filter_; |
97 ClientInfo clients_pending_on_restart_; | 99 ClientInfo clients_pending_on_restart_; |
98 | 100 |
99 media::VideoFrame::Format video_type_; | 101 media::VideoFrame::Format video_type_; |
100 | 102 |
101 // The parameter is being used in current capture session. A capture session | 103 // The parameter is being used in current capture session. A capture session |
102 // starts with StartCapture and ends with StopCapture. | 104 // starts with StartCapture and ends with StopCapture. |
103 media::VideoCaptureParams current_params_; | 105 media::VideoCaptureParams current_params_; |
104 | 106 |
105 // The information about the device sent from browser process side. | 107 // The information about the device sent from browser process side. |
106 media::VideoCaptureParams device_info_; | 108 media::VideoCaptureParams device_info_; |
107 bool device_info_available_; | 109 bool device_info_available_; |
108 | 110 |
109 video_capture::State state_; | 111 video_capture::State state_; |
110 | 112 |
111 DISALLOW_COPY_AND_ASSIGN(VideoCaptureImpl); | 113 DISALLOW_COPY_AND_ASSIGN(VideoCaptureImpl); |
112 }; | 114 }; |
113 | 115 |
114 #endif // CONTENT_RENDERER_MEDIA_VIDEO_CAPTURE_IMPL_H_ | 116 #endif // CONTENT_RENDERER_MEDIA_VIDEO_CAPTURE_IMPL_H_ |
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