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             : #ifndef WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_PLI_H_
      11             : #define WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_PLI_H_
      12             : 
      13             : #include "webrtc/base/basictypes.h"
      14             : #include "webrtc/base/constructormagic.h"
      15             : #include "webrtc/modules/rtp_rtcp/source/rtcp_packet/psfb.h"
      16             : 
      17             : namespace webrtc {
      18             : namespace rtcp {
      19             : class CommonHeader;
      20             : // Picture loss indication (PLI) (RFC 4585).
      21             : class Pli : public Psfb {
      22             :  public:
      23             :   static constexpr uint8_t kFeedbackMessageType = 1;
      24             : 
      25           0 :   Pli() {}
      26           0 :   ~Pli() override {}
      27             : 
      28             :   bool Parse(const CommonHeader& packet);
      29             : 
      30             :  protected:
      31             :   bool Create(uint8_t* packet,
      32             :               size_t* index,
      33             :               size_t max_length,
      34             :               RtcpPacket::PacketReadyCallback* callback) const override;
      35             : 
      36             :  private:
      37           0 :   size_t BlockLength() const override {
      38           0 :     return kHeaderLength + kCommonFeedbackLength;
      39             :   }
      40             : 
      41             :   RTC_DISALLOW_COPY_AND_ASSIGN(Pli);
      42             : };
      43             : 
      44             : }  // namespace rtcp
      45             : }  // namespace webrtc
      46             : #endif  // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_PLI_H_