[rtp_rtcp] rtcp::Sli packet moved into own file and got Parse function

webrtc/modules/rtp_rtcp/source/rtcp_packet.cc

 /*
  *  Copyright (c) 2014 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.
  */
 
@@ skipping 16 matching lines @@
 using webrtc::RTCPUtility::PT_SDES;
 using webrtc::RTCPUtility::PT_SR;
 using webrtc::RTCPUtility::PT_XR;
 
 using webrtc::RTCPUtility::RTCPPacketAPP;
 using webrtc::RTCPUtility::RTCPPacketPSFBAPP;
 using webrtc::RTCPUtility::RTCPPacketPSFBFIR;
 using webrtc::RTCPUtility::RTCPPacketPSFBFIRItem;
 using webrtc::RTCPUtility::RTCPPacketPSFBREMBItem;
 using webrtc::RTCPUtility::RTCPPacketPSFBRPSI;
-using webrtc::RTCPUtility::RTCPPacketPSFBSLI;
-using webrtc::RTCPUtility::RTCPPacketPSFBSLIItem;
 using webrtc::RTCPUtility::RTCPPacketReportBlockItem;
 using webrtc::RTCPUtility::RTCPPacketRTPFBNACK;
 using webrtc::RTCPUtility::RTCPPacketRTPFBNACKItem;
 using webrtc::RTCPUtility::RTCPPacketSR;
 using webrtc::RTCPUtility::RTCPPacketXRDLRRReportBlockItem;
 using webrtc::RTCPUtility::RTCPPacketXR;
 
 namespace webrtc {
 namespace rtcp {
 namespace {
@@ skipping 125 matching lines @@
     AssignUWord32(buffer, pos, (*it).ssrc);
     AssignUWord8(buffer, pos, kSdesItemType);
     AssignUWord8(buffer, pos, (*it).name.length());
     memcpy(buffer + *pos, (*it).name.data(), (*it).name.length());
     *pos += (*it).name.length();
     memset(buffer + *pos, 0, (*it).null_octets);
     *pos += (*it).null_octets;
   }
 }
 
-// Slice loss indication (SLI) (RFC 4585).
-//
-// FCI:
-//
-//    0                   1                   2                   3
-//    0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
-//   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-//   |            First        |        Number           | PictureID |
-//   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-
-void CreateSli(const RTCPPacketPSFBSLI& sli,
-               const RTCPPacketPSFBSLIItem& sli_item,
-               uint8_t* buffer,
-               size_t* pos) {
-  AssignUWord32(buffer, pos, sli.SenderSSRC);
-  AssignUWord32(buffer, pos, sli.MediaSSRC);
-
-  AssignUWord8(buffer, pos, sli_item.FirstMB >> 5);
-  AssignUWord8(buffer, pos, (sli_item.FirstMB << 3) +
-                            ((sli_item.NumberOfMB >> 10) & 0x07));
-  AssignUWord8(buffer, pos, sli_item.NumberOfMB >> 2);
-  AssignUWord8(buffer, pos, (sli_item.NumberOfMB << 6) + sli_item.PictureId);
-}
-
 // Reference picture selection indication (RPSI) (RFC 4585).
 //
 // FCI:
 //
 //    0                   1                   2                   3
 //    0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
 //   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 //   |      PB       |0| Payload Type|    Native RPSI bit string     |
 //   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 //   |   defined per codec          ...                | Padding (0) |
@@ skipping 269 matching lines @@
   // Header (4 bytes).
   // Chunk:
   // SSRC/CSRC (4 bytes) | CNAME (1 byte) | length (1 byte) | name | padding.
   size_t length = kHeaderLength;
   for (const Chunk& chunk : chunks_)
     length += 6 + chunk.name.length() + chunk.null_octets;
   assert(length % 4 == 0);
   return length;
 }
 
-bool Sli::Create(uint8_t* packet,
-                 size_t* index,
-                 size_t max_length,
-                 RtcpPacket::PacketReadyCallback* callback) const {
-  while (*index + BlockLength() > max_length) {
-    if (!OnBufferFull(packet, index, callback))
-      return false;
-  }
-  const uint8_t kFmt = 2;
-  CreateHeader(kFmt, PT_PSFB, HeaderLength(), packet, index);
-  CreateSli(sli_, sli_item_, packet, index);
-  return true;
-}
-
 bool Rpsi::Create(uint8_t* packet,
                   size_t* index,
                   size_t max_length,
                   RtcpPacket::PacketReadyCallback* callback) const {
   assert(rpsi_.NumberOfValidBits > 0);
   while (*index + BlockLength() > max_length) {
     if (!OnBufferFull(packet, index, callback))
       return false;
   }
   const uint8_t kFmt = 3;
@@ skipping 155 matching lines @@
   return length_;
 }
 
 void RawPacket::SetLength(size_t length) {
   assert(length <= buffer_length_);
   length_ = length;
 }
 
 }  // namespace rtcp
 }  // namespace webrtc