mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
synced 2024-11-22 19:00:01 +08:00
128 lines
4.0 KiB
C++
128 lines
4.0 KiB
C++
#ifndef ZLMEDIAKIT_SRT_HS_EXT_H
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#define ZLMEDIAKIT_SRT_HS_EXT_H
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#include "Network/Buffer.h"
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#include "Common.hpp"
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namespace SRT {
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using namespace toolkit;
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class HSExt : public Buffer {
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public:
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HSExt() = default;
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virtual ~HSExt() = default;
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enum {
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SRT_CMD_REJECT = 0,
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SRT_CMD_HSREQ = 1,
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SRT_CMD_HSRSP = 2,
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SRT_CMD_KMREQ = 3,
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SRT_CMD_KMRSP = 4,
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SRT_CMD_SID = 5,
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SRT_CMD_CONGESTION = 6,
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SRT_CMD_FILTER = 7,
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SRT_CMD_GROUP = 8,
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SRT_CMD_NONE = -1
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};
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using Ptr = std::shared_ptr<HSExt>;
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uint16_t extension_type;
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uint16_t extension_length;
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virtual bool loadFromData(uint8_t *buf, size_t len) = 0;
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virtual bool storeToData() = 0;
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virtual std::string dump() = 0;
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///////Buffer override///////
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char *data() const override {
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if (_data) {
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return _data->data();
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}
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return nullptr;
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};
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size_t size() const override {
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if (_data) {
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return _data->size();
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}
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return 0;
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};
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protected:
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void loadHeader() {
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uint8_t *ptr = (uint8_t *)_data->data();
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extension_type = loadUint16(ptr);
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ptr += 2;
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extension_length = loadUint16(ptr);
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ptr += 2;
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}
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void storeHeader() {
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uint8_t *ptr = (uint8_t *)_data->data();
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SRT::storeUint16(ptr, extension_type);
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ptr += 2;
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storeUint16(ptr, extension_length);
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}
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protected:
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BufferRaw::Ptr _data;
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};
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/*
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0 1 2 3
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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
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| SRT Version |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| SRT Flags |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| Receiver TSBPD Delay | Sender TSBPD Delay |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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Figure 6: Handshake Extension Message structure
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https://haivision.github.io/srt-rfc/draft-sharabayko-srt.html#name-handshake-extension-message
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*/
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class HSExtMessage : public HSExt {
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public:
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using Ptr = std::shared_ptr<HSExtMessage>;
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enum {
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HS_EXT_MSG_TSBPDSND = 0x00000001,
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HS_EXT_MSG_TSBPDRCV = 0x00000002,
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HS_EXT_MSG_CRYPT = 0x00000004,
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HS_EXT_MSG_TLPKTDROP = 0x00000008,
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HS_EXT_MSG_PERIODICNAK = 0x00000010,
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HS_EXT_MSG_REXMITFLG = 0x00000020,
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HS_EXT_MSG_STREAM = 0x00000040,
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HS_EXT_MSG_PACKET_FILTER = 0x00000080
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};
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enum { HSEXT_MSG_SIZE = 16 };
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HSExtMessage() = default;
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~HSExtMessage() = default;
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bool loadFromData(uint8_t *buf, size_t len) override;
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bool storeToData() override;
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std::string dump() override;
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uint32_t srt_version;
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uint32_t srt_flag;
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uint16_t recv_tsbpd_delay;
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uint16_t send_tsbpd_delay;
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};
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/*
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0 1 2 3
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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
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| Stream ID |
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...
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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Figure 7: Stream ID Extension Message
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https://haivision.github.io/srt-rfc/draft-sharabayko-srt.html#name-stream-id-extension-message
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*/
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class HSExtStreamID : public HSExt {
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public:
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using Ptr = std::shared_ptr<HSExtStreamID>;
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HSExtStreamID() = default;
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~HSExtStreamID() = default;
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bool loadFromData(uint8_t *buf, size_t len) override;
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bool storeToData() override;
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std::string dump() override;
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std::string streamid;
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};
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} // namespace SRT
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#endif // ZLMEDIAKIT_SRT_HS_EXT_H
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