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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 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 | 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_VIDEO_TRACK_RECORDER_H_ | 5 #ifndef CONTENT_RENDERER_MEDIA_VIDEO_TRACK_RECORDER_H_ |
6 #define CONTENT_RENDERER_MEDIA_VIDEO_TRACK_RECORDER_H_ | 6 #define CONTENT_RENDERER_MEDIA_VIDEO_TRACK_RECORDER_H_ |
7 | 7 |
8 #include <memory> | 8 #include <memory> |
9 | 9 |
10 #include "base/macros.h" | 10 #include "base/macros.h" |
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30 | 30 |
31 // VideoTrackRecorder is a MediaStreamVideoSink that encodes the video frames | 31 // VideoTrackRecorder is a MediaStreamVideoSink that encodes the video frames |
32 // received from a Stream Video Track. This class is constructed and used on a | 32 // received from a Stream Video Track. This class is constructed and used on a |
33 // single thread, namely the main Render thread. This mirrors the other | 33 // single thread, namely the main Render thread. This mirrors the other |
34 // MediaStreamVideo* classes that are constructed/configured on Main Render | 34 // MediaStreamVideo* classes that are constructed/configured on Main Render |
35 // thread but that pass frames on Render IO thread. It has an internal Encoder | 35 // thread but that pass frames on Render IO thread. It has an internal Encoder |
36 // with its own threading subtleties, see the implementation file. | 36 // with its own threading subtleties, see the implementation file. |
37 class CONTENT_EXPORT VideoTrackRecorder | 37 class CONTENT_EXPORT VideoTrackRecorder |
38 : NON_EXPORTED_BASE(public MediaStreamVideoSink) { | 38 : NON_EXPORTED_BASE(public MediaStreamVideoSink) { |
39 public: | 39 public: |
| 40 // Do not change the order of codecs; add new ones right before LAST. |
40 enum class CodecId { | 41 enum class CodecId { |
41 VP8, | 42 VP8, |
42 VP9, | 43 VP9, |
| 44 #if BUILDFLAG(RTC_USE_H264) |
43 H264, | 45 H264, |
| 46 #endif |
| 47 LAST |
44 }; | 48 }; |
45 class Encoder; | 49 class Encoder; |
46 | 50 |
47 using OnEncodedVideoCB = | 51 using OnEncodedVideoCB = |
48 base::Callback<void(const media::WebmMuxer::VideoParameters& params, | 52 base::Callback<void(const media::WebmMuxer::VideoParameters& params, |
49 std::unique_ptr<std::string> encoded_data, | 53 std::unique_ptr<std::string> encoded_data, |
50 base::TimeTicks capture_timestamp, | 54 base::TimeTicks capture_timestamp, |
51 bool is_key_frame)>; | 55 bool is_key_frame)>; |
52 | 56 |
| 57 static CodecId GetPreferredCodecId(); |
| 58 |
53 VideoTrackRecorder(CodecId codec, | 59 VideoTrackRecorder(CodecId codec, |
54 const blink::WebMediaStreamTrack& track, | 60 const blink::WebMediaStreamTrack& track, |
55 const OnEncodedVideoCB& on_encoded_video_cb, | 61 const OnEncodedVideoCB& on_encoded_video_cb, |
56 int32_t bits_per_second); | 62 int32_t bits_per_second); |
57 ~VideoTrackRecorder() override; | 63 ~VideoTrackRecorder() override; |
58 | 64 |
59 void Pause(); | 65 void Pause(); |
60 void Resume(); | 66 void Resume(); |
61 | 67 |
62 void OnVideoFrameForTesting(const scoped_refptr<media::VideoFrame>& frame, | 68 void OnVideoFrameForTesting(const scoped_refptr<media::VideoFrame>& frame, |
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86 // Used to track the paused state during the initialization process. | 92 // Used to track the paused state during the initialization process. |
87 bool paused_before_init_; | 93 bool paused_before_init_; |
88 | 94 |
89 base::WeakPtrFactory<VideoTrackRecorder> weak_ptr_factory_; | 95 base::WeakPtrFactory<VideoTrackRecorder> weak_ptr_factory_; |
90 | 96 |
91 DISALLOW_COPY_AND_ASSIGN(VideoTrackRecorder); | 97 DISALLOW_COPY_AND_ASSIGN(VideoTrackRecorder); |
92 }; | 98 }; |
93 | 99 |
94 } // namespace content | 100 } // namespace content |
95 #endif // CONTENT_RENDERER_MEDIA_VIDEO_TRACK_RECORDER_H_ | 101 #endif // CONTENT_RENDERER_MEDIA_VIDEO_TRACK_RECORDER_H_ |
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