mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
synced 2024-10-30 16:27:36 +08:00
129 lines
3.9 KiB
C++
129 lines
3.9 KiB
C++
#ifndef ZLMEDIAKIT_SRT_HS_EXT_H
|
|
#define ZLMEDIAKIT_SRT_HS_EXT_H
|
|
|
|
#include "Network/Buffer.h"
|
|
|
|
#include "Common.hpp"
|
|
|
|
namespace SRT {
|
|
using namespace toolkit;
|
|
class HSExt : public Buffer {
|
|
public:
|
|
HSExt() = default;
|
|
virtual ~HSExt() = default;
|
|
|
|
enum {
|
|
SRT_CMD_REJECT = 0,
|
|
SRT_CMD_HSREQ = 1,
|
|
SRT_CMD_HSRSP = 2,
|
|
SRT_CMD_KMREQ = 3,
|
|
SRT_CMD_KMRSP = 4,
|
|
SRT_CMD_SID = 5,
|
|
SRT_CMD_CONGESTION = 6,
|
|
SRT_CMD_FILTER = 7,
|
|
SRT_CMD_GROUP = 8,
|
|
SRT_CMD_NONE = -1
|
|
};
|
|
|
|
using Ptr = std::shared_ptr<HSExt>;
|
|
uint16_t extension_type;
|
|
uint16_t extension_length;
|
|
virtual bool loadFromData(uint8_t *buf, size_t len) = 0;
|
|
virtual bool storeToData() = 0;
|
|
virtual std::string dump() = 0;
|
|
///////Buffer override///////
|
|
char *data() const override {
|
|
if (_data) {
|
|
return _data->data();
|
|
}
|
|
return nullptr;
|
|
}
|
|
size_t size() const override {
|
|
if (_data) {
|
|
return _data->size();
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
protected:
|
|
void loadHeader() {
|
|
uint8_t *ptr = (uint8_t *)_data->data();
|
|
extension_type = loadUint16(ptr);
|
|
ptr += 2;
|
|
extension_length = loadUint16(ptr);
|
|
ptr += 2;
|
|
}
|
|
void storeHeader() {
|
|
uint8_t *ptr = (uint8_t *)_data->data();
|
|
SRT::storeUint16(ptr, extension_type);
|
|
ptr += 2;
|
|
storeUint16(ptr, extension_length);
|
|
}
|
|
|
|
protected:
|
|
BufferRaw::Ptr _data;
|
|
};
|
|
|
|
/*
|
|
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
|
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
| SRT Version |
|
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
| SRT Flags |
|
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
| Receiver TSBPD Delay | Sender TSBPD Delay |
|
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
Figure 6: Handshake Extension Message structure
|
|
https://haivision.github.io/srt-rfc/draft-sharabayko-srt.html#name-handshake-extension-message
|
|
|
|
*/
|
|
class HSExtMessage : public HSExt {
|
|
public:
|
|
using Ptr = std::shared_ptr<HSExtMessage>;
|
|
enum {
|
|
HS_EXT_MSG_TSBPDSND = 0x00000001,
|
|
HS_EXT_MSG_TSBPDRCV = 0x00000002,
|
|
HS_EXT_MSG_CRYPT = 0x00000004,
|
|
HS_EXT_MSG_TLPKTDROP = 0x00000008,
|
|
HS_EXT_MSG_PERIODICNAK = 0x00000010,
|
|
HS_EXT_MSG_REXMITFLG = 0x00000020,
|
|
HS_EXT_MSG_STREAM = 0x00000040,
|
|
HS_EXT_MSG_PACKET_FILTER = 0x00000080
|
|
};
|
|
enum { HSEXT_MSG_SIZE = 16 };
|
|
HSExtMessage() = default;
|
|
~HSExtMessage() = default;
|
|
bool loadFromData(uint8_t *buf, size_t len) override;
|
|
bool storeToData() override;
|
|
std::string dump() override;
|
|
uint32_t srt_version;
|
|
uint32_t srt_flag;
|
|
uint16_t recv_tsbpd_delay;
|
|
uint16_t send_tsbpd_delay;
|
|
};
|
|
|
|
/*
|
|
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
|
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
| |
|
|
| Stream ID |
|
|
...
|
|
| |
|
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
Figure 7: Stream ID Extension Message
|
|
https://haivision.github.io/srt-rfc/draft-sharabayko-srt.html#name-stream-id-extension-message
|
|
*/
|
|
class HSExtStreamID : public HSExt {
|
|
public:
|
|
using Ptr = std::shared_ptr<HSExtStreamID>;
|
|
HSExtStreamID() = default;
|
|
~HSExtStreamID() = default;
|
|
bool loadFromData(uint8_t *buf, size_t len) override;
|
|
bool storeToData() override;
|
|
std::string dump() override;
|
|
std::string streamid;
|
|
};
|
|
} // namespace SRT
|
|
#endif // ZLMEDIAKIT_SRT_HS_EXT_H
|