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RTC: Refine SRTP unprotect rtp and rtcp, without copy

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This commit is contained in:
winlin 2021-02-07 16:21:25 +08:00
parent 0c07459d19
commit 9f91351f3c
4 changed files with 23 additions and 30 deletions
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17
trunk/src/app/srs_app_rtc_conn.hpp
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@ -100,8 +100,8 @@ public:
virtual srs_error_t protect_rtp(const char* plaintext, char* cipher, int& nb_cipher) = 0;
virtual srs_error_t protect_rtcp(const char* plaintext, char* cipher, int& nb_cipher) = 0;
virtual srs_error_t protect_rtp2(void* rtp_hdr, int* len_ptr) = 0;
virtual srs_error_t unprotect_rtp(const char* cipher, char* plaintext, int& nb_plaintext) = 0;
virtual srs_error_t unprotect_rtcp(const char* cipher, char* plaintext, int& nb_plaintext) = 0;
virtual srs_error_t unprotect_rtp(void* packet, int* nb_plaintext) = 0;
virtual srs_error_t unprotect_rtcp(void* packet, int* nb_plaintext) = 0;
};
// The security transport, use DTLS/SRTP to protect the data.
@ -130,11 +130,10 @@ public:
// Encrypt the input rtp_hdr with *len_ptr bytes.
// @remark the input plaintext and out cipher reuse rtp_hdr.
srs_error_t protect_rtp2(void* rtp_hdr, int* len_ptr);
// Decrypt the input cipher to output cipher with nb_cipher bytes.
// @remark Note that the nb_plaintext is the size of input cipher, and
// it also is the length of output plaintext when return.
srs_error_t unprotect_rtp(const char* cipher, char* plaintext, int& nb_plaintext);
srs_error_t unprotect_rtcp(const char* cipher, char* plaintext, int& nb_plaintext);
// Decrypt the packet(cipher) to plaintext, which is also the packet ptr.
// The nb_plaintext should be initialized to the size of cipher.
srs_error_t unprotect_rtp(void* packet, int* nb_plaintext);
srs_error_t unprotect_rtcp(void* packet, int* nb_plaintext);
// implement ISrsDtlsCallback
public:
virtual srs_error_t on_dtls_handshake_done();
@ -176,8 +175,8 @@ public:
virtual srs_error_t protect_rtp(const char* plaintext, char* cipher, int& nb_cipher);
virtual srs_error_t protect_rtcp(const char* plaintext, char* cipher, int& nb_cipher);
virtual srs_error_t protect_rtp2(void* rtp_hdr, int* len_ptr);
virtual srs_error_t unprotect_rtp(const char* cipher, char* plaintext, int& nb_plaintext);
virtual srs_error_t unprotect_rtcp(const char* cipher, char* plaintext, int& nb_plaintext);
srs_error_t unprotect_rtp(void* packet, int* nb_plaintext);
srs_error_t unprotect_rtcp(void* packet, int* nb_plaintext);
};
// The handler for PLI worker coroutine.