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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 #ifndef CONTENT_RENDERER_MEDIA_CAPTURE_VIDEO_DECODER_H_ | 5 #ifndef CONTENT_RENDERER_MEDIA_CAPTURE_VIDEO_DECODER_H_ |
6 #define CONTENT_RENDERER_MEDIA_CAPTURE_VIDEO_DECODER_H_ | 6 #define CONTENT_RENDERER_MEDIA_CAPTURE_VIDEO_DECODER_H_ |
7 | 7 |
8 #include "base/time.h" | 8 #include "base/time.h" |
9 #include "content/common/content_export.h" | 9 #include "content/common/content_export.h" |
10 #include "media/base/demuxer_stream.h" | 10 #include "media/base/demuxer_stream.h" |
11 #include "media/base/filters.h" | 11 #include "media/base/filters.h" |
12 #include "media/base/pipeline_status.h" | 12 #include "media/base/pipeline_status.h" |
13 #include "media/base/video_frame.h" | 13 #include "media/base/video_frame.h" |
14 #include "media/video/capture/video_capture.h" | 14 #include "media/video/capture/video_capture.h" |
| 15 #include "media/video/capture/video_capture_types.h" |
15 | 16 |
16 namespace base { | 17 namespace base { |
17 class MessageLoopProxy; | 18 class MessageLoopProxy; |
18 } | 19 } |
19 class VideoCaptureImplManager; | 20 class VideoCaptureImplManager; |
20 | 21 |
21 // A filter takes raw frames from video capture engine and passes them to media | 22 // A filter takes raw frames from video capture engine and passes them to media |
22 // engine as a video decoder filter. | 23 // engine as a video decoder filter. |
23 class CONTENT_EXPORT CaptureVideoDecoder | 24 class CONTENT_EXPORT CaptureVideoDecoder |
24 : public media::VideoDecoder, | 25 : public media::VideoDecoder, |
25 public media::VideoCapture::EventHandler { | 26 public media::VideoCapture::EventHandler { |
26 public: | 27 public: |
27 CaptureVideoDecoder( | 28 CaptureVideoDecoder( |
28 base::MessageLoopProxy* message_loop_proxy, | 29 base::MessageLoopProxy* message_loop_proxy, |
29 media::VideoCaptureSessionId video_stream_id, | 30 media::VideoCaptureSessionId video_stream_id, |
30 VideoCaptureImplManager* vc_manager, | 31 VideoCaptureImplManager* vc_manager, |
31 const media::VideoCapture::VideoCaptureCapability& capability); | 32 const media::VideoCaptureCapability& capability); |
32 virtual ~CaptureVideoDecoder(); | 33 virtual ~CaptureVideoDecoder(); |
33 | 34 |
34 // Filter implementation. | 35 // Filter implementation. |
35 virtual void Play(const base::Closure& callback) OVERRIDE; | 36 virtual void Play(const base::Closure& callback) OVERRIDE; |
36 virtual void Seek(base::TimeDelta time, | 37 virtual void Seek(base::TimeDelta time, |
37 const media::PipelineStatusCB& cb) OVERRIDE; | 38 const media::PipelineStatusCB& cb) OVERRIDE; |
38 virtual void Pause(const base::Closure& callback) OVERRIDE; | 39 virtual void Pause(const base::Closure& callback) OVERRIDE; |
39 virtual void Flush(const base::Closure& callback) OVERRIDE; | 40 virtual void Flush(const base::Closure& callback) OVERRIDE; |
40 virtual void Stop(const base::Closure& callback) OVERRIDE; | 41 virtual void Stop(const base::Closure& callback) OVERRIDE; |
41 | 42 |
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89 scoped_refptr<media::VideoCapture::VideoFrameBuffer> buf); | 90 scoped_refptr<media::VideoCapture::VideoFrameBuffer> buf); |
90 void OnDeviceInfoReceivedOnDecoderThread( | 91 void OnDeviceInfoReceivedOnDecoderThread( |
91 media::VideoCapture* capture, | 92 media::VideoCapture* capture, |
92 const media::VideoCaptureParams& device_info); | 93 const media::VideoCaptureParams& device_info); |
93 | 94 |
94 // Delivers the frame to |read_cb_| and resets the callback. | 95 // Delivers the frame to |read_cb_| and resets the callback. |
95 void DeliverFrame(const scoped_refptr<media::VideoFrame>& video_frame); | 96 void DeliverFrame(const scoped_refptr<media::VideoFrame>& video_frame); |
96 | 97 |
97 scoped_refptr<base::MessageLoopProxy> message_loop_proxy_; | 98 scoped_refptr<base::MessageLoopProxy> message_loop_proxy_; |
98 scoped_refptr<VideoCaptureImplManager> vc_manager_; | 99 scoped_refptr<VideoCaptureImplManager> vc_manager_; |
99 media::VideoCapture::VideoCaptureCapability capability_; | 100 media::VideoCaptureCapability capability_; |
100 gfx::Size natural_size_; | 101 gfx::Size natural_size_; |
101 DecoderState state_; | 102 DecoderState state_; |
102 bool got_first_frame_; | 103 bool got_first_frame_; |
103 ReadCB read_cb_; | 104 ReadCB read_cb_; |
104 base::Closure pending_stop_cb_; | 105 base::Closure pending_stop_cb_; |
105 media::StatisticsCB statistics_cb_; | 106 media::StatisticsCB statistics_cb_; |
106 | 107 |
107 media::VideoCaptureSessionId video_stream_id_; | 108 media::VideoCaptureSessionId video_stream_id_; |
108 media::VideoCapture* capture_engine_; | 109 media::VideoCapture* capture_engine_; |
109 base::Time last_frame_timestamp_; | 110 base::Time last_frame_timestamp_; |
110 base::Time start_time_; | 111 base::Time start_time_; |
111 | 112 |
112 DISALLOW_COPY_AND_ASSIGN(CaptureVideoDecoder); | 113 DISALLOW_COPY_AND_ASSIGN(CaptureVideoDecoder); |
113 }; | 114 }; |
114 | 115 |
115 #endif // CONTENT_RENDERER_MEDIA_CAPTURE_VIDEO_DECODER_H_ | 116 #endif // CONTENT_RENDERER_MEDIA_CAPTURE_VIDEO_DECODER_H_ |
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