app.h (2027B)
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 MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_APP_H_ 12 #define MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_APP_H_ 13 14 #include <stddef.h> 15 #include <stdint.h> 16 17 #include "modules/rtp_rtcp/source/rtcp_packet.h" 18 #include "rtc_base/buffer.h" 19 20 namespace webrtc { 21 namespace rtcp { 22 class CommonHeader; 23 24 class App : public RtcpPacket { 25 public: 26 static constexpr uint8_t kPacketType = 204; 27 App(); 28 App(App&&) = default; 29 ~App() override; 30 31 // Parse assumes header is already parsed and validated. 32 bool Parse(const CommonHeader& packet); 33 34 void SetSubType(uint8_t subtype); 35 void SetName(uint32_t name) { name_ = name; } 36 void SetData(const uint8_t* data, size_t data_length); 37 38 uint8_t sub_type() const { return sub_type_; } 39 uint32_t name() const { return name_; } 40 size_t data_size() const { return data_.size(); } 41 const uint8_t* data() const { return data_.data(); } 42 43 size_t BlockLength() const override; 44 45 bool Create(uint8_t* packet, 46 size_t* index, 47 size_t max_length, 48 PacketReadyCallback callback) const override; 49 50 static inline constexpr uint32_t NameToInt(const char name[5]) { 51 return static_cast<uint32_t>(name[0]) << 24 | 52 static_cast<uint32_t>(name[1]) << 16 | 53 static_cast<uint32_t>(name[2]) << 8 | static_cast<uint32_t>(name[3]); 54 } 55 56 private: 57 static constexpr size_t kAppBaseLength = 8; // Ssrc and Name. 58 static constexpr size_t kMaxDataSize = 0xffff * 4 - kAppBaseLength; 59 60 uint8_t sub_type_; 61 uint32_t name_; 62 Buffer data_; 63 }; 64 65 } // namespace rtcp 66 } // namespace webrtc 67 #endif // MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_APP_H_