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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 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 | 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 MEDIA_CAST_SENDER_VIDEO_SENDER_H_ | 5 #ifndef MEDIA_CAST_SENDER_VIDEO_SENDER_H_ | 
| 6 #define MEDIA_CAST_SENDER_VIDEO_SENDER_H_ | 6 #define MEDIA_CAST_SENDER_VIDEO_SENDER_H_ | 
| 7 | 7 | 
|  | 8 #include <memory> | 
|  | 9 | 
| 8 #include "base/callback.h" | 10 #include "base/callback.h" | 
| 9 #include "base/macros.h" | 11 #include "base/macros.h" | 
| 10 #include "base/memory/ref_counted.h" | 12 #include "base/memory/ref_counted.h" | 
| 11 #include "base/memory/scoped_ptr.h" |  | 
| 12 #include "base/memory/weak_ptr.h" | 13 #include "base/memory/weak_ptr.h" | 
| 13 #include "base/threading/non_thread_safe.h" | 14 #include "base/threading/non_thread_safe.h" | 
| 14 #include "base/time/tick_clock.h" | 15 #include "base/time/tick_clock.h" | 
| 15 #include "base/time/time.h" | 16 #include "base/time/time.h" | 
| 16 #include "media/cast/cast_config.h" | 17 #include "media/cast/cast_config.h" | 
| 17 #include "media/cast/cast_sender.h" | 18 #include "media/cast/cast_sender.h" | 
| 18 #include "media/cast/common/rtp_time.h" | 19 #include "media/cast/common/rtp_time.h" | 
| 19 #include "media/cast/sender/congestion_control.h" | 20 #include "media/cast/sender/congestion_control.h" | 
| 20 #include "media/cast/sender/frame_sender.h" | 21 #include "media/cast/sender/frame_sender.h" | 
| 21 | 22 | 
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| 53 | 54 | 
| 54   // Note: It is not guaranteed that |video_frame| will actually be encoded and | 55   // Note: It is not guaranteed that |video_frame| will actually be encoded and | 
| 55   // sent, if VideoSender detects too many frames in flight.  Therefore, clients | 56   // sent, if VideoSender detects too many frames in flight.  Therefore, clients | 
| 56   // should be careful about the rate at which this method is called. | 57   // should be careful about the rate at which this method is called. | 
| 57   void InsertRawVideoFrame(const scoped_refptr<media::VideoFrame>& video_frame, | 58   void InsertRawVideoFrame(const scoped_refptr<media::VideoFrame>& video_frame, | 
| 58                            const base::TimeTicks& reference_time); | 59                            const base::TimeTicks& reference_time); | 
| 59 | 60 | 
| 60   // Creates a |VideoFrameFactory| object to vend |VideoFrame| object with | 61   // Creates a |VideoFrameFactory| object to vend |VideoFrame| object with | 
| 61   // encoder affinity (defined as offering some sort of performance benefit). If | 62   // encoder affinity (defined as offering some sort of performance benefit). If | 
| 62   // the encoder does not have any such capability, returns null. | 63   // the encoder does not have any such capability, returns null. | 
| 63   scoped_ptr<VideoFrameFactory> CreateVideoFrameFactory(); | 64   std::unique_ptr<VideoFrameFactory> CreateVideoFrameFactory(); | 
| 64 | 65 | 
| 65  protected: | 66  protected: | 
| 66   int GetNumberOfFramesInEncoder() const final; | 67   int GetNumberOfFramesInEncoder() const final; | 
| 67   base::TimeDelta GetInFlightMediaDuration() const final; | 68   base::TimeDelta GetInFlightMediaDuration() const final; | 
| 68 | 69 | 
| 69  private: | 70  private: | 
| 70   // Called by the |video_encoder_| with the next EncodedFrame to send. | 71   // Called by the |video_encoder_| with the next EncodedFrame to send. | 
| 71   void OnEncodedVideoFrame(const scoped_refptr<media::VideoFrame>& video_frame, | 72   void OnEncodedVideoFrame(const scoped_refptr<media::VideoFrame>& video_frame, | 
| 72                            int encoder_bitrate, | 73                            int encoder_bitrate, | 
| 73                            scoped_ptr<SenderEncodedFrame> encoded_frame); | 74                            std::unique_ptr<SenderEncodedFrame> encoded_frame); | 
| 74 | 75 | 
| 75   // Encodes media::VideoFrame images into EncodedFrames.  Per configuration, | 76   // Encodes media::VideoFrame images into EncodedFrames.  Per configuration, | 
| 76   // this will point to either the internal software-based encoder or a proxy to | 77   // this will point to either the internal software-based encoder or a proxy to | 
| 77   // a hardware-based encoder. | 78   // a hardware-based encoder. | 
| 78   scoped_ptr<VideoEncoder> video_encoder_; | 79   std::unique_ptr<VideoEncoder> video_encoder_; | 
| 79 | 80 | 
| 80   // The number of frames queued for encoding, but not yet sent. | 81   // The number of frames queued for encoding, but not yet sent. | 
| 81   int frames_in_encoder_; | 82   int frames_in_encoder_; | 
| 82 | 83 | 
| 83   // The duration of video queued for encoding, but not yet sent. | 84   // The duration of video queued for encoding, but not yet sent. | 
| 84   base::TimeDelta duration_in_encoder_; | 85   base::TimeDelta duration_in_encoder_; | 
| 85 | 86 | 
| 86   // The timestamp of the frame that was last enqueued in |video_encoder_|. | 87   // The timestamp of the frame that was last enqueued in |video_encoder_|. | 
| 87   RtpTimeTicks last_enqueued_frame_rtp_timestamp_; | 88   RtpTimeTicks last_enqueued_frame_rtp_timestamp_; | 
| 88   base::TimeTicks last_enqueued_frame_reference_time_; | 89   base::TimeTicks last_enqueued_frame_reference_time_; | 
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| 112   // NOTE: Weak pointers must be invalidated before all other member variables. | 113   // NOTE: Weak pointers must be invalidated before all other member variables. | 
| 113   base::WeakPtrFactory<VideoSender> weak_factory_; | 114   base::WeakPtrFactory<VideoSender> weak_factory_; | 
| 114 | 115 | 
| 115   DISALLOW_COPY_AND_ASSIGN(VideoSender); | 116   DISALLOW_COPY_AND_ASSIGN(VideoSender); | 
| 116 }; | 117 }; | 
| 117 | 118 | 
| 118 }  // namespace cast | 119 }  // namespace cast | 
| 119 }  // namespace media | 120 }  // namespace media | 
| 120 | 121 | 
| 121 #endif  // MEDIA_CAST_SENDER_VIDEO_SENDER_H_ | 122 #endif  // MEDIA_CAST_SENDER_VIDEO_SENDER_H_ | 
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