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_APP_H_ 12 #define WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_APP_H_ 13 14 #include "webrtc/base/buffer.h" 15 #include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h" 16 #include "webrtc/modules/rtp_rtcp/source/rtcp_packet.h" 17 #include "webrtc/modules/rtp_rtcp/source/rtcp_utility.h" 18 19 namespace webrtc { 20 namespace rtcp { 21 22 class App : public RtcpPacket { 23 public: 24 static const uint8_t kPacketType = 204; 25 // 28 bytes for UDP header 26 // 12 bytes for RTCP app header 27 static const size_t kMaxDataSize = IP_PACKET_SIZE - 12 - 28; 28 App() : sub_type_(0), ssrc_(0), name_(0) {} 29 30 virtual ~App() {} 31 32 // Parse assumes header is already parsed and validated. 33 bool Parse(const RTCPUtility::RtcpCommonHeader& header, 34 const uint8_t* payload); // Size of the payload is in the header. 35 36 void From(uint32_t ssrc) { ssrc_ = ssrc; } 37 void WithSubType(uint8_t subtype); 38 void WithName(uint32_t name) { name_ = name; } 39 void WithData(const uint8_t* data, size_t data_length); 40 41 uint8_t sub_type() const { return sub_type_; } 42 uint32_t ssrc() const { return ssrc_; } 43 uint32_t name() const { return name_; } 44 size_t data_size() const { return data_.size(); } 45 const uint8_t* data() const { return data_.data(); } 46 47 protected: 48 bool Create(uint8_t* packet, 49 size_t* index, 50 size_t max_length, 51 RtcpPacket::PacketReadyCallback* callback) const override; 52 53 private: 54 size_t BlockLength() const override { return 12 + data_.size(); } 55 56 uint8_t sub_type_; 57 uint32_t ssrc_; 58 uint32_t name_; 59 rtc::Buffer data_; 60 61 RTC_DISALLOW_COPY_AND_ASSIGN(App); 62 }; 63 64 } // namespace rtcp 65 } // namespace webrtc 66 #endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_APP_H_ 67
