FFmpeg
 All Data Structures Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
srtp.h
Go to the documentation of this file.
1 /*
2  * SRTP encryption/decryption
3  * Copyright (c) 2012 Martin Storsjo
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #ifndef AVFORMAT_SRTP_H
23 #define AVFORMAT_SRTP_H
24 
25 #include <stdint.h>
26 
27 struct AVAES;
28 struct AVHMAC;
29 
30 struct SRTPContext {
31  struct AVAES *aes;
32  struct AVHMAC *hmac;
40  uint32_t roc;
41 
42  uint32_t rtcp_index;
43 };
44 
45 int ff_srtp_set_crypto(struct SRTPContext *s, const char *suite,
46  const char *params);
47 void ff_srtp_free(struct SRTPContext *s);
48 int ff_srtp_decrypt(struct SRTPContext *s, uint8_t *buf, int *lenptr);
49 int ff_srtp_encrypt(struct SRTPContext *s, const uint8_t *in, int len,
50  uint8_t *out, int outlen);
51 
52 #endif /* AVFORMAT_SRTP_H */