ZLMediaKit/webrtc/srtp_session.h
2021-03-25 16:01:54 +08:00

55 lines
1.3 KiB
C++

#ifndef MS_RTC_SRTP_SESSION_HPP
#define MS_RTC_SRTP_SESSION_HPP
#include "rtc_dtls_transport.h"
#include "utils.h"
#include <srtp2/srtp.h>
#include <vector>
namespace RTC {
class DepLibSRTP {
public:
static void ClassInit();
static void ClassDestroy();
static bool IsError(srtp_err_status_t code) { return (code != srtp_err_status_ok); }
static const char *GetErrorString(srtp_err_status_t code) {
// This throws out_of_range if the given index is not in the vector.
return DepLibSRTP::errors.at(code);
}
private:
static std::vector<const char *> errors;
};
class SrtpSession {
public:
public:
enum class Type { INBOUND = 1, OUTBOUND };
public:
static void ClassInit();
private:
static void OnSrtpEvent(srtp_event_data_t *data);
public:
SrtpSession(Type type, CryptoSuite cryptoSuite, uint8_t *key, size_t keyLen);
~SrtpSession();
public:
bool EncryptRtp(const uint8_t **data, size_t *len);
bool DecryptSrtp(uint8_t *data, size_t *len);
bool EncryptRtcp(const uint8_t **data, size_t *len);
bool DecryptSrtcp(uint8_t *data, size_t *len);
void RemoveStream(uint32_t ssrc) { srtp_remove_stream(this->session, uint32_t{htonl(ssrc)}); }
private:
bool is_init = false;
// Allocated by this.
srtp_t session{nullptr};
};
}// namespace RTC
#endif