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Side by Side Diff: media/cast/sender/video_sender.h

Issue 388663003: Cast: Reshuffle files under media/cast (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: missing includes Created 6 years, 5 months ago
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1 // Copyright 2013 The Chromium Authors. All rights reserved. 1 // Copyright 2013 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_VIDEO_SENDER_VIDEO_SENDER_H_ 5 #ifndef MEDIA_CAST_SENDER_VIDEO_SENDER_H_
6 #define MEDIA_CAST_VIDEO_SENDER_VIDEO_SENDER_H_ 6 #define MEDIA_CAST_SENDER_VIDEO_SENDER_H_
7 7
8 #include "base/callback.h" 8 #include "base/callback.h"
9 #include "base/memory/ref_counted.h" 9 #include "base/memory/ref_counted.h"
10 #include "base/memory/scoped_ptr.h" 10 #include "base/memory/scoped_ptr.h"
11 #include "base/memory/weak_ptr.h" 11 #include "base/memory/weak_ptr.h"
12 #include "base/threading/non_thread_safe.h" 12 #include "base/threading/non_thread_safe.h"
13 #include "base/time/tick_clock.h" 13 #include "base/time/tick_clock.h"
14 #include "base/time/time.h" 14 #include "base/time/time.h"
15 #include "media/cast/cast_config.h" 15 #include "media/cast/cast_config.h"
16 #include "media/cast/cast_environment.h" 16 #include "media/cast/cast_environment.h"
17 #include "media/cast/congestion_control/congestion_control.h"
18 #include "media/cast/logging/logging_defines.h" 17 #include "media/cast/logging/logging_defines.h"
19 #include "media/cast/rtcp/rtcp.h" 18 #include "media/cast/net/rtcp/rtcp.h"
20 #include "media/cast/rtp_timestamp_helper.h" 19 #include "media/cast/sender/congestion_control.h"
20 #include "media/cast/sender/rtp_timestamp_helper.h"
21 21
22 namespace media { 22 namespace media {
23 23
24 class VideoFrame; 24 class VideoFrame;
25 25
26 namespace cast { 26 namespace cast {
27 27
28 class CastTransportSender;
28 class LocalVideoEncoderCallback; 29 class LocalVideoEncoderCallback;
29 class VideoEncoder; 30 class VideoEncoder;
30 31
31 namespace transport {
32 class CastTransportSender;
33 }
34
35 // Not thread safe. Only called from the main cast thread. 32 // Not thread safe. Only called from the main cast thread.
36 // This class owns all objects related to sending video, objects that create RTP 33 // This class owns all objects related to sending video, objects that create RTP
37 // packets, congestion control, video encoder, parsing and sending of 34 // packets, congestion control, video encoder, parsing and sending of
38 // RTCP packets. 35 // RTCP packets.
39 // Additionally it posts a bunch of delayed tasks to the main thread for various 36 // Additionally it posts a bunch of delayed tasks to the main thread for various
40 // timeouts. 37 // timeouts.
41 class VideoSender : public RtcpSenderFeedback, 38 class VideoSender : public RtcpSenderFeedback,
42 public base::NonThreadSafe, 39 public base::NonThreadSafe,
43 public base::SupportsWeakPtr<VideoSender> { 40 public base::SupportsWeakPtr<VideoSender> {
44 public: 41 public:
45 VideoSender(scoped_refptr<CastEnvironment> cast_environment, 42 VideoSender(scoped_refptr<CastEnvironment> cast_environment,
46 const VideoSenderConfig& video_config, 43 const VideoSenderConfig& video_config,
47 const CreateVideoEncodeAcceleratorCallback& create_vea_cb, 44 const CreateVideoEncodeAcceleratorCallback& create_vea_cb,
48 const CreateVideoEncodeMemoryCallback& create_video_encode_mem_cb, 45 const CreateVideoEncodeMemoryCallback& create_video_encode_mem_cb,
49 transport::CastTransportSender* const transport_sender); 46 CastTransportSender* const transport_sender);
50 47
51 virtual ~VideoSender(); 48 virtual ~VideoSender();
52 49
53 CastInitializationStatus InitializationResult() const { 50 CastInitializationStatus InitializationResult() const {
54 return cast_initialization_status_; 51 return cast_initialization_status_;
55 } 52 }
56 53
57 // Note: It is not guaranteed that |video_frame| will actually be encoded and 54 // Note: It is not guaranteed that |video_frame| will actually be encoded and
58 // sent, if VideoSender detects too many frames in flight. Therefore, clients 55 // sent, if VideoSender detects too many frames in flight. Therefore, clients
59 // should be careful about the rate at which this method is called. 56 // should be careful about the rate at which this method is called.
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86 void ResendForKickstart(); 83 void ResendForKickstart();
87 84
88 // Returns true if there are too many frames in flight, as defined by the 85 // Returns true if there are too many frames in flight, as defined by the
89 // configured target playout delay plus simple logic. When this is true, 86 // configured target playout delay plus simple logic. When this is true,
90 // InsertRawVideoFrame() will silenty drop frames instead of sending them to 87 // InsertRawVideoFrame() will silenty drop frames instead of sending them to
91 // the video encoder. 88 // the video encoder.
92 bool AreTooManyFramesInFlight() const; 89 bool AreTooManyFramesInFlight() const;
93 90
94 // Called by the |video_encoder_| with the next EncodeFrame to send. 91 // Called by the |video_encoder_| with the next EncodeFrame to send.
95 void SendEncodedVideoFrame(int requested_bitrate_before_encode, 92 void SendEncodedVideoFrame(int requested_bitrate_before_encode,
96 scoped_ptr<transport::EncodedFrame> encoded_frame); 93 scoped_ptr<EncodedFrame> encoded_frame);
97 94
98 const scoped_refptr<CastEnvironment> cast_environment_; 95 const scoped_refptr<CastEnvironment> cast_environment_;
99 96
100 // The total amount of time between a frame's capture/recording on the sender 97 // The total amount of time between a frame's capture/recording on the sender
101 // and its playback on the receiver (i.e., shown to a user). This is fixed as 98 // and its playback on the receiver (i.e., shown to a user). This is fixed as
102 // a value large enough to give the system sufficient time to encode, 99 // a value large enough to give the system sufficient time to encode,
103 // transmit/retransmit, receive, decode, and render; given its run-time 100 // transmit/retransmit, receive, decode, and render; given its run-time
104 // environment (sender/receiver hardware performance, network conditions, 101 // environment (sender/receiver hardware performance, network conditions,
105 // etc.). 102 // etc.).
106 const base::TimeDelta target_playout_delay_; 103 const base::TimeDelta target_playout_delay_;
107 104
108 // Sends encoded frames over the configured transport (e.g., UDP). In 105 // Sends encoded frames over the configured transport (e.g., UDP). In
109 // Chromium, this could be a proxy that first sends the frames from a renderer 106 // Chromium, this could be a proxy that first sends the frames from a renderer
110 // process to the browser process over IPC, with the browser process being 107 // process to the browser process over IPC, with the browser process being
111 // responsible for "packetizing" the frames and pushing packets into the 108 // responsible for "packetizing" the frames and pushing packets into the
112 // network layer. 109 // network layer.
113 transport::CastTransportSender* const transport_sender_; 110 CastTransportSender* const transport_sender_;
114 111
115 // Maximum number of outstanding frames before the encoding and sending of 112 // Maximum number of outstanding frames before the encoding and sending of
116 // new frames shall halt. 113 // new frames shall halt.
117 const int max_unacked_frames_; 114 const int max_unacked_frames_;
118 115
119 // Encodes media::VideoFrame images into EncodedFrames. Per configuration, 116 // Encodes media::VideoFrame images into EncodedFrames. Per configuration,
120 // this will point to either the internal software-based encoder or a proxy to 117 // this will point to either the internal software-based encoder or a proxy to
121 // a hardware-based encoder. 118 // a hardware-based encoder.
122 scoped_ptr<VideoEncoder> video_encoder_; 119 scoped_ptr<VideoEncoder> video_encoder_;
123 120
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172 169
173 // NOTE: Weak pointers must be invalidated before all other member variables. 170 // NOTE: Weak pointers must be invalidated before all other member variables.
174 base::WeakPtrFactory<VideoSender> weak_factory_; 171 base::WeakPtrFactory<VideoSender> weak_factory_;
175 172
176 DISALLOW_COPY_AND_ASSIGN(VideoSender); 173 DISALLOW_COPY_AND_ASSIGN(VideoSender);
177 }; 174 };
178 175
179 } // namespace cast 176 } // namespace cast
180 } // namespace media 177 } // namespace media
181 178
182 #endif // MEDIA_CAST_VIDEO_SENDER_VIDEO_SENDER_H_ 179 #endif // MEDIA_CAST_SENDER_VIDEO_SENDER_H_
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