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             : #ifndef WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_RECEIVER_REPORT_H_
      12             : #define WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_RECEIVER_REPORT_H_
      13             : 
      14             : #include <vector>
      15             : 
      16             : #include "webrtc/base/basictypes.h"
      17             : #include "webrtc/base/constructormagic.h"
      18             : #include "webrtc/modules/rtp_rtcp/source/rtcp_packet.h"
      19             : #include "webrtc/modules/rtp_rtcp/source/rtcp_packet/report_block.h"
      20             : 
      21             : namespace webrtc {
      22             : namespace rtcp {
      23             : class CommonHeader;
      24             : 
      25             : class ReceiverReport : public RtcpPacket {
      26             :  public:
      27             :   static constexpr uint8_t kPacketType = 201;
      28           0 :   ReceiverReport() : sender_ssrc_(0) {}
      29           0 :   ~ReceiverReport() override {}
      30             : 
      31             :   // Parse assumes header is already parsed and validated.
      32             :   bool Parse(const CommonHeader& packet);
      33             : 
      34           0 :   void SetSenderSsrc(uint32_t ssrc) { sender_ssrc_ = ssrc; }
      35             :   bool AddReportBlock(const ReportBlock& block);
      36             : 
      37           0 :   uint32_t sender_ssrc() const { return sender_ssrc_; }
      38           0 :   const std::vector<ReportBlock>& report_blocks() const {
      39           0 :     return report_blocks_;
      40             :   }
      41             : 
      42             :  protected:
      43             :   bool Create(uint8_t* packet,
      44             :               size_t* index,
      45             :               size_t max_length,
      46             :               RtcpPacket::PacketReadyCallback* callback) const override;
      47             : 
      48             :  private:
      49             :   static const size_t kRrBaseLength = 4;
      50             :   static const size_t kMaxNumberOfReportBlocks = 0x1F;
      51             : 
      52           0 :   size_t BlockLength() const override {
      53             :     return kHeaderLength + kRrBaseLength +
      54           0 :            report_blocks_.size() * ReportBlock::kLength;
      55             :   }
      56             : 
      57             :   uint32_t sender_ssrc_;
      58             :   std::vector<ReportBlock> report_blocks_;
      59             : 
      60             :   RTC_DISALLOW_COPY_AND_ASSIGN(ReceiverReport);
      61             : };
      62             : 
      63             : }  // namespace rtcp
      64             : }  // namespace webrtc
      65             : #endif  // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_RECEIVER_REPORT_H_