Line data    Source code

       1             : /*
       2             :  *  Copyright (c) 2015 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             : 
      12             : #ifndef WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_PSFB_H_
      13             : #define WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_PSFB_H_
      14             : 
      15             : #include "webrtc/base/basictypes.h"
      16             : #include "webrtc/modules/rtp_rtcp/source/rtcp_packet.h"
      17             : 
      18             : namespace webrtc {
      19             : namespace rtcp {
      20             : 
      21             : // PSFB: Payload-specific feedback message.
      22             : // RFC 4585, Section 6.3.
      23             : class Psfb : public RtcpPacket {
      24             :  public:
      25             :   static constexpr uint8_t kPacketType = 206;
      26             : 
      27           0 :   Psfb() : sender_ssrc_(0), media_ssrc_(0) {}
      28           0 :   ~Psfb() override {}
      29             : 
      30           0 :   void SetSenderSsrc(uint32_t ssrc) { sender_ssrc_ = ssrc; }
      31           0 :   void SetMediaSsrc(uint32_t ssrc) { media_ssrc_ = ssrc; }
      32             : 
      33           0 :   uint32_t sender_ssrc() const { return sender_ssrc_; }
      34           0 :   uint32_t media_ssrc() const { return media_ssrc_; }
      35             : 
      36             :  protected:
      37             :   static constexpr size_t kCommonFeedbackLength = 8;
      38             :   void ParseCommonFeedback(const uint8_t* payload);
      39             :   void CreateCommonFeedback(uint8_t* payload) const;
      40             : 
      41             :  private:
      42             :   uint32_t sender_ssrc_;
      43             :   uint32_t media_ssrc_;
      44             : };
      45             : 
      46             : }  // namespace rtcp
      47             : }  // namespace webrtc
      48             : #endif  // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_PSFB_H_