1/*
2 *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
3 *
4 *  Use of this source code is governed by a BSD-style license
5 *  that can be found in the LICENSE file in the root of the source
6 *  tree. An additional intellectual property rights grant can be found
7 *  in the file PATENTS.  All contributing project authors may
8 *  be found in the AUTHORS file in the root of the source tree.
9 */
10
11#ifndef WEBRTC_VIDEO_VIDEO_SEND_STREAM_H_
12#define WEBRTC_VIDEO_VIDEO_SEND_STREAM_H_
13
14#include <map>
15#include <vector>
16
17#include "webrtc/call.h"
18#include "webrtc/call/transport_adapter.h"
19#include "webrtc/common_video/libyuv/include/webrtc_libyuv.h"
20#include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h"
21#include "webrtc/system_wrappers/include/critical_section_wrapper.h"
22#include "webrtc/video/encoded_frame_callback_adapter.h"
23#include "webrtc/video/send_statistics_proxy.h"
24#include "webrtc/video/video_capture_input.h"
25#include "webrtc/video_receive_stream.h"
26#include "webrtc/video_send_stream.h"
27
28namespace webrtc {
29
30class BitrateAllocator;
31class CallStats;
32class CongestionController;
33class EncoderStateFeedback;
34class ProcessThread;
35class ViEChannel;
36class ViEEncoder;
37
38namespace internal {
39
40class VideoSendStream : public webrtc::VideoSendStream,
41                        public webrtc::CpuOveruseObserver {
42 public:
43  VideoSendStream(int num_cpu_cores,
44                  ProcessThread* module_process_thread,
45                  CallStats* call_stats,
46                  CongestionController* congestion_controller,
47                  BitrateAllocator* bitrate_allocator,
48                  const VideoSendStream::Config& config,
49                  const VideoEncoderConfig& encoder_config,
50                  const std::map<uint32_t, RtpState>& suspended_ssrcs);
51
52  ~VideoSendStream() override;
53
54  // webrtc::SendStream implementation.
55  void Start() override;
56  void Stop() override;
57  void SignalNetworkState(NetworkState state) override;
58  bool DeliverRtcp(const uint8_t* packet, size_t length) override;
59
60  // webrtc::VideoSendStream implementation.
61  VideoCaptureInput* Input() override;
62  bool ReconfigureVideoEncoder(const VideoEncoderConfig& config) override;
63  Stats GetStats() override;
64
65  // webrtc::CpuOveruseObserver implementation.
66  void OveruseDetected() override;
67  void NormalUsage() override;
68
69  typedef std::map<uint32_t, RtpState> RtpStateMap;
70  RtpStateMap GetRtpStates() const;
71
72  int64_t GetRtt() const;
73  int GetPaddingNeededBps() const;
74
75 private:
76  bool SetSendCodec(VideoCodec video_codec);
77  void ConfigureSsrcs();
78
79  SendStatisticsProxy stats_proxy_;
80  TransportAdapter transport_adapter_;
81  EncodedFrameCallbackAdapter encoded_frame_proxy_;
82  const VideoSendStream::Config config_;
83  VideoEncoderConfig encoder_config_;
84  std::map<uint32_t, RtpState> suspended_ssrcs_;
85
86  ProcessThread* const module_process_thread_;
87  CallStats* const call_stats_;
88  CongestionController* const congestion_controller_;
89
90  rtc::scoped_ptr<VideoCaptureInput> input_;
91  rtc::scoped_ptr<ViEChannel> vie_channel_;
92  rtc::scoped_ptr<ViEEncoder> vie_encoder_;
93  rtc::scoped_ptr<EncoderStateFeedback> encoder_feedback_;
94
95  // Used as a workaround to indicate that we should be using the configured
96  // start bitrate initially, instead of the one reported by VideoEngine (which
97  // defaults to too high).
98  bool use_config_bitrate_;
99};
100}  // namespace internal
101}  // namespace webrtc
102
103#endif  // WEBRTC_VIDEO_VIDEO_SEND_STREAM_H_
104