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Add srt caller mode and stream encryption support. (#4088)

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Add srt caller mode and stream encryption support.
1. Support srt caller mode, realize srt proxy pull stream proxy push
stream;
url parameter format such as: srt://127.0.0.1:9000?streamid=#!
::r=live/test11
2. Support srt stream encrypted transmission in caller and listener
mode.

---------

Co-authored-by: xiongguangjie <xiong_panda@163.com>
This commit is contained in:
baigao-X
2024-12-28 20:21:29 +08:00
committed by GitHub
parent cb4db80502
commit 1c8ed1c55a
27 changed files with 3002 additions and 17 deletions
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14
srt/SrtTransport.hpp
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@@ -13,6 +13,7 @@
#include "Common.hpp"
#include "NackContext.hpp"
#include "Packet.hpp"
#include "Crypto.hpp"
#include "PacketQueue.hpp"
#include "PacketSendQueue.hpp"
#include "Statistic.hpp"
@@ -24,6 +25,7 @@ extern const std::string kPort;
extern const std::string kTimeOutSec;
extern const std::string kLatencyMul;
extern const std::string kPktBufSize;
extern const std::string kPassPhrase;
class SrtTransport : public std::enable_shared_from_this<SrtTransport> {
public:
@@ -60,6 +62,7 @@ protected:
virtual int getLatencyMul() { return 4; };
virtual int getPktBufSize() { return 8192; };
virtual float getTimeOutSec(){return 5.0;};
virtual std::string getPassphrase() {return "";};
private:
void registerSelf();
@@ -79,15 +82,19 @@ private:
void handleShutDown(uint8_t *buf, int len, struct sockaddr_storage *addr);
void handleDropReq(uint8_t *buf, int len, struct sockaddr_storage *addr);
void handleUserDefinedType(uint8_t *buf, int len, struct sockaddr_storage *addr);
void handleKeyMaterialReqPacket(uint8_t *buf, int len, struct sockaddr_storage *addr);
void handleKeyMaterialRspPacket(uint8_t *buf, int len, struct sockaddr_storage *addr);
void handlePeerError(uint8_t *buf, int len, struct sockaddr_storage *addr);
void handleDataPacket(uint8_t *buf, int len, struct sockaddr_storage *addr);
void sendNAKPacket(std::list<PacketQueue::LostPair> &lost_list);
void sendACKPacket();
void sendRejectPacket(SRT_REJECT_REASON reason, struct sockaddr_storage *addr);
void sendLightACKPacket();
void sendKeepLivePacket();
void sendShutDown();
void sendMsgDropReq(uint32_t first, uint32_t last);
void tryAnnounceKeyMaterial();
size_t getPayloadSize() const;
@@ -159,6 +166,11 @@ private:
Ticker _alive_ticker;
bool _is_handleshake_finished = false;
// for encryption
Crypto::Ptr _crypto;
Timer::Ptr _announce_timer;
KeyMaterialPacket::Ptr _announce_req;
};
class SrtTransportManager {
@@ -185,4 +197,4 @@ private:
} // namespace SRT
#endif // ZLMEDIAKIT_SRT_TRANSPORT_H
#endif // ZLMEDIAKIT_SRT_TRANSPORT_H