1 files changed, 132 insertions, 0 deletions
diff --git a/webrtc/video/vie_receiver.h b/webrtc/video/vie_receiver.h
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+++ b/webrtc/video/vie_receiver.h
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+/*
+ *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef WEBRTC_VIDEO_VIE_RECEIVER_H_
+#define WEBRTC_VIDEO_VIE_RECEIVER_H_
+
+#include <list>
+#include <vector>
+
+#include "webrtc/base/scoped_ptr.h"
+#include "webrtc/engine_configurations.h"
+#include "webrtc/modules/rtp_rtcp/include/receive_statistics.h"
+#include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h"
+#include "webrtc/typedefs.h"
+
+namespace webrtc {
+
+class CriticalSectionWrapper;
+class FecReceiver;
+class RemoteNtpTimeEstimator;
+class ReceiveStatistics;
+class RemoteBitrateEstimator;
+class RtpHeaderParser;
+class RTPPayloadRegistry;
+class RtpReceiver;
+class RtpRtcp;
+class VideoCodingModule;
+struct ReceiveBandwidthEstimatorStats;
+
+class ViEReceiver : public RtpData {
+ public:
+  ViEReceiver(VideoCodingModule* module_vcm,
+              RemoteBitrateEstimator* remote_bitrate_estimator,
+              RtpFeedback* rtp_feedback);
+  ~ViEReceiver();
+
+  bool SetReceiveCodec(const VideoCodec& video_codec);
+  bool RegisterPayload(const VideoCodec& video_codec);
+
+  void SetNackStatus(bool enable, int max_nack_reordering_threshold);
+  void SetRtxPayloadType(int payload_type, int associated_payload_type);
+  // If set to true, the RTX payload type mapping supplied in
+  // |SetRtxPayloadType| will be used when restoring RTX packets. Without it,
+  // RTX packets will always be restored to the last non-RTX packet payload type
+  // received.
+  void SetUseRtxPayloadMappingOnRestore(bool val);
+  void SetRtxSsrc(uint32_t ssrc);
+  bool GetRtxSsrc(uint32_t* ssrc) const;
+
+  bool IsFecEnabled() const;
+
+  uint32_t GetRemoteSsrc() const;
+  int GetCsrcs(uint32_t* csrcs) const;
+
+  void SetRtpRtcpModule(RtpRtcp* module);
+
+  RtpReceiver* GetRtpReceiver() const;
+
+  void RegisterRtpRtcpModules(const std::vector<RtpRtcp*>& rtp_modules);
+
+  bool SetReceiveTimestampOffsetStatus(bool enable, int id);
+  bool SetReceiveAbsoluteSendTimeStatus(bool enable, int id);
+  bool SetReceiveVideoRotationStatus(bool enable, int id);
+  bool SetReceiveTransportSequenceNumber(bool enable, int id);
+
+  void StartReceive();
+  void StopReceive();
+
+  // Receives packets from external transport.
+  int ReceivedRTPPacket(const void* rtp_packet, size_t rtp_packet_length,
+                        const PacketTime& packet_time);
+  int ReceivedRTCPPacket(const void* rtcp_packet, size_t rtcp_packet_length);
+
+  // Implements RtpData.
+  int32_t OnReceivedPayloadData(const uint8_t* payload_data,
+                                const size_t payload_size,
+                                const WebRtcRTPHeader* rtp_header) override;
+  bool OnRecoveredPacket(const uint8_t* packet, size_t packet_length) override;
+
+  ReceiveStatistics* GetReceiveStatistics() const;
+
+ private:
+  int InsertRTPPacket(const uint8_t* rtp_packet, size_t rtp_packet_length,
+                      const PacketTime& packet_time);
+  bool ReceivePacket(const uint8_t* packet,
+                     size_t packet_length,
+                     const RTPHeader& header,
+                     bool in_order);
+  // Parses and handles for instance RTX and RED headers.
+  // This function assumes that it's being called from only one thread.
+  bool ParseAndHandleEncapsulatingHeader(const uint8_t* packet,
+                                         size_t packet_length,
+                                         const RTPHeader& header);
+  void NotifyReceiverOfFecPacket(const RTPHeader& header);
+  int InsertRTCPPacket(const uint8_t* rtcp_packet, size_t rtcp_packet_length);
+  bool IsPacketInOrder(const RTPHeader& header) const;
+  bool IsPacketRetransmitted(const RTPHeader& header, bool in_order) const;
+  void UpdateHistograms();
+
+  rtc::scoped_ptr<CriticalSectionWrapper> receive_cs_;
+  Clock* clock_;
+  rtc::scoped_ptr<RtpHeaderParser> rtp_header_parser_;
+  rtc::scoped_ptr<RTPPayloadRegistry> rtp_payload_registry_;
+  rtc::scoped_ptr<RtpReceiver> rtp_receiver_;
+  const rtc::scoped_ptr<ReceiveStatistics> rtp_receive_statistics_;
+  rtc::scoped_ptr<FecReceiver> fec_receiver_;
+  RtpRtcp* rtp_rtcp_;
+  std::vector<RtpRtcp*> rtp_rtcp_simulcast_;
+  VideoCodingModule* vcm_;
+  RemoteBitrateEstimator* remote_bitrate_estimator_;
+
+  rtc::scoped_ptr<RemoteNtpTimeEstimator> ntp_estimator_;
+
+  bool receiving_;
+  uint8_t restored_packet_[IP_PACKET_SIZE];
+  bool restored_packet_in_use_;
+  bool receiving_ast_enabled_;
+  bool receiving_cvo_enabled_;
+  bool receiving_tsn_enabled_;
+  int64_t last_packet_log_ms_;
+};
+
+}  // namespace webrtc
+
+#endif  // WEBRTC_VIDEO_VIE_RECEIVER_H_