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| 1 // Copyright 2015 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 CONTENT_RENDERER_MEDIA_MEDIA_RECORDER_HANDLER_H_ |
| 6 #define CONTENT_RENDERER_MEDIA_MEDIA_RECORDER_HANDLER_H_ |
| 7 |
| 8 #include "base/memory/scoped_vector.h" |
| 9 #include "base/memory/weak_ptr.h" |
| 10 #include "base/strings/string_piece.h" |
| 11 #include "base/threading/thread_checker.h" |
| 12 #include "content/common/content_export.h" |
| 13 #include "third_party/WebKit/public/platform/WebMediaRecorderHandlerClient.h" |
| 14 #include "third_party/WebKit/public/platform/WebMediaStream.h" |
| 15 |
| 16 namespace blink { |
| 17 class WebString; |
| 18 } // namespace blink |
| 19 |
| 20 namespace media { |
| 21 class VideoFrame; |
| 22 class WebmMuxer; |
| 23 } // namespace media |
| 24 |
| 25 namespace content { |
| 26 |
| 27 class VideoTrackRecorder; |
| 28 |
| 29 // MediaRecorderHandler orchestrates the creation, lifetime mgmt and mapping |
| 30 // between: |
| 31 // - MediaStreamTrack(s) providing data, |
| 32 // - {Audio,Video}TrackRecorders encoding that data, |
| 33 // - a WebmMuxer class multiplexing encoded data into a WebM container, and |
| 34 // - a single recorder client receiving this contained data. |
| 35 // All methods are called on the same thread as construction and destruction, |
| 36 // i.e. the Main Render thread. |
| 37 // TODO(mcasas): Implement audio recording. |
| 38 class CONTENT_EXPORT MediaRecorderHandler final { |
| 39 public: |
| 40 MediaRecorderHandler(); |
| 41 ~MediaRecorderHandler(); |
| 42 |
| 43 // See above, these methods should override blink::WebMediaRecorderHandler. |
| 44 bool canSupportMimeType(const blink::WebString& mimeType); |
| 45 bool initialize(blink::WebMediaRecorderHandlerClient* client, |
| 46 const blink::WebMediaStream& media_stream, |
| 47 const blink::WebString& mimeType); |
| 48 bool start(); |
| 49 bool start(int timeslice); |
| 50 void stop(); |
| 51 void pause(); |
| 52 void resume(); |
| 53 |
| 54 private: |
| 55 friend class MediaRecorderHandlerTest; |
| 56 |
| 57 void WriteData(const base::StringPiece& data); |
| 58 |
| 59 void OnVideoFrameForTesting(const scoped_refptr<media::VideoFrame>& frame, |
| 60 const base::TimeTicks& timestamp); |
| 61 |
| 62 // Bound to the main render thread. |
| 63 base::ThreadChecker main_render_thread_checker_; |
| 64 |
| 65 bool recording_; |
| 66 blink::WebMediaStream media_stream_; // The MediaStream being recorded. |
| 67 |
| 68 // |client_| is a weak pointer, and is valid for the lifetime of this object. |
| 69 blink::WebMediaRecorderHandlerClient* client_; |
| 70 |
| 71 ScopedVector<VideoTrackRecorder> video_recorders_; |
| 72 |
| 73 // Worker class doing the actual Webm Muxing work. |
| 74 scoped_ptr<media::WebmMuxer> webm_muxer_; |
| 75 |
| 76 base::WeakPtrFactory<MediaRecorderHandler> weak_factory_; |
| 77 |
| 78 DISALLOW_COPY_AND_ASSIGN(MediaRecorderHandler); |
| 79 }; |
| 80 |
| 81 } // namespace content |
| 82 #endif // CONTENT_RENDERER_MEDIA_MEDIA_RECORDER_HANDLER_H_ |
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