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| 1 /* | |
| 2 * Copyright (c) 2012 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_VIE_CHANNEL_H_ | |
| 12 #define WEBRTC_VIDEO_VIE_CHANNEL_H_ | |
| 13 | |
| 14 #include <list> | |
| 15 #include <map> | |
| 16 #include <memory> | |
| 17 #include <vector> | |
| 18 | |
| 19 #include "webrtc/base/criticalsection.h" | |
| 20 #include "webrtc/base/platform_thread.h" | |
| 21 #include "webrtc/base/scoped_ref_ptr.h" | |
| 22 #include "webrtc/modules/remote_bitrate_estimator/include/remote_bitrate_estimat
or.h" | |
| 23 #include "webrtc/modules/rtp_rtcp/include/rtp_rtcp.h" | |
| 24 #include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h" | |
| 25 #include "webrtc/modules/video_coding/include/video_coding_defines.h" | |
| 26 #include "webrtc/system_wrappers/include/tick_util.h" | |
| 27 #include "webrtc/typedefs.h" | |
| 28 #include "webrtc/video/rtp_stream_receiver.h" | |
| 29 #include "webrtc/video/vie_sync_module.h" | |
| 30 | |
| 31 namespace webrtc { | |
| 32 | |
| 33 class CallStatsObserver; | |
| 34 class ChannelStatsObserver; | |
| 35 class Config; | |
| 36 class EncodedImageCallback; | |
| 37 class I420FrameCallback; | |
| 38 class IncomingVideoStream; | |
| 39 class PacedSender; | |
| 40 class PacketRouter; | |
| 41 class PayloadRouter; | |
| 42 class ReceiveStatisticsProxy; | |
| 43 class RtcpRttStats; | |
| 44 class ViERTPObserver; | |
| 45 class VoEVideoSync; | |
| 46 | |
| 47 namespace vcm { | |
| 48 class VideoReceiver; | |
| 49 } // namespace vcm | |
| 50 | |
| 51 enum StreamType { | |
| 52 kViEStreamTypeNormal = 0, // Normal media stream | |
| 53 kViEStreamTypeRtx = 1 // Retransmission media stream | |
| 54 }; | |
| 55 | |
| 56 class ViEChannel : public VCMFrameTypeCallback, | |
| 57 public VCMReceiveCallback, | |
| 58 public VCMReceiveStatisticsCallback, | |
| 59 public VCMDecoderTimingCallback, | |
| 60 public VCMPacketRequestCallback { | |
| 61 public: | |
| 62 friend class ChannelStatsObserver; | |
| 63 | |
| 64 ViEChannel(vcm::VideoReceiver* video_receiver, | |
| 65 RtpStreamReceiver* rtp_stream_receiver); | |
| 66 ~ViEChannel(); | |
| 67 | |
| 68 int32_t Init(); | |
| 69 | |
| 70 RtpRtcp* rtp_rtcp() const { return rtp_rtcp_; } | |
| 71 | |
| 72 void SetProtectionMode(bool enable_nack, | |
| 73 bool enable_fec, | |
| 74 int payload_type_red, | |
| 75 int payload_type_fec); | |
| 76 | |
| 77 RtpState GetRtpStateForSsrc(uint32_t ssrc) const; | |
| 78 | |
| 79 | |
| 80 CallStatsObserver* GetStatsObserver(); | |
| 81 | |
| 82 // Implements VCMReceiveCallback. | |
| 83 int32_t FrameToRender(VideoFrame& video_frame) override; // NOLINT | |
| 84 | |
| 85 // Implements VCMReceiveCallback. | |
| 86 int32_t ReceivedDecodedReferenceFrame(const uint64_t picture_id) override; | |
| 87 | |
| 88 // Implements VCMReceiveCallback. | |
| 89 void OnIncomingPayloadType(int payload_type) override; | |
| 90 void OnDecoderImplementationName(const char* implementation_name) override; | |
| 91 | |
| 92 // Implements VCMReceiveStatisticsCallback. | |
| 93 void OnReceiveRatesUpdated(uint32_t bit_rate, uint32_t frame_rate) override; | |
| 94 void OnDiscardedPacketsUpdated(int discarded_packets) override; | |
| 95 void OnFrameCountsUpdated(const FrameCounts& frame_counts) override; | |
| 96 | |
| 97 // Implements VCMDecoderTimingCallback. | |
| 98 void OnDecoderTiming(int decode_ms, | |
| 99 int max_decode_ms, | |
| 100 int current_delay_ms, | |
| 101 int target_delay_ms, | |
| 102 int jitter_buffer_ms, | |
| 103 int min_playout_delay_ms, | |
| 104 int render_delay_ms) override; | |
| 105 | |
| 106 // Implements FrameTypeCallback. | |
| 107 int32_t RequestKeyFrame() override; | |
| 108 | |
| 109 // Implements FrameTypeCallback. | |
| 110 int32_t SliceLossIndicationRequest( | |
| 111 const uint64_t picture_id) override; | |
| 112 | |
| 113 // Implements VideoPacketRequestCallback. | |
| 114 int32_t ResendPackets(const uint16_t* sequence_numbers, | |
| 115 uint16_t length) override; | |
| 116 | |
| 117 void RegisterPreRenderCallback(I420FrameCallback* pre_render_callback); | |
| 118 | |
| 119 void RegisterRtcpPacketTypeCounterObserver( | |
| 120 RtcpPacketTypeCounterObserver* observer); | |
| 121 void RegisterReceiveStatisticsProxy( | |
| 122 ReceiveStatisticsProxy* receive_statistics_proxy); | |
| 123 void SetIncomingVideoStream(IncomingVideoStream* incoming_video_stream); | |
| 124 | |
| 125 protected: | |
| 126 void OnRttUpdate(int64_t avg_rtt_ms, int64_t max_rtt_ms); | |
| 127 | |
| 128 private: | |
| 129 // Assumed to be protected. | |
| 130 void StartDecodeThread(); | |
| 131 void StopDecodeThread(); | |
| 132 | |
| 133 void ProcessNACKRequest(const bool enable); | |
| 134 // Compute NACK list parameters for the buffering mode. | |
| 135 int GetRequiredNackListSize(int target_delay_ms); | |
| 136 | |
| 137 // Used for all registered callbacks except rendering. | |
| 138 rtc::CriticalSection crit_; | |
| 139 | |
| 140 vcm::VideoReceiver* const video_receiver_; | |
| 141 RtpStreamReceiver* const rtp_stream_receiver_; | |
| 142 RtpRtcp* const rtp_rtcp_; | |
| 143 | |
| 144 // Helper to report call statistics. | |
| 145 std::unique_ptr<ChannelStatsObserver> stats_observer_; | |
| 146 | |
| 147 // Not owned. | |
| 148 ReceiveStatisticsProxy* receive_stats_callback_ GUARDED_BY(crit_); | |
| 149 FrameCounts receive_frame_counts_ GUARDED_BY(crit_); | |
| 150 IncomingVideoStream* incoming_video_stream_ GUARDED_BY(crit_); | |
| 151 | |
| 152 int max_nack_reordering_threshold_; | |
| 153 I420FrameCallback* pre_render_callback_ GUARDED_BY(crit_); | |
| 154 | |
| 155 int64_t last_rtt_ms_ GUARDED_BY(crit_); | |
| 156 }; | |
| 157 | |
| 158 } // namespace webrtc | |
| 159 | |
| 160 #endif // WEBRTC_VIDEO_VIE_CHANNEL_H_ | |
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