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48 lines
880 B
48 lines
880 B
#ifndef _RTP_H_
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#define _RTP_H_
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#include "str.h"
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#include <glib.h>
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struct crypto_context;
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struct rtp_header {
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unsigned char v_p_x_cc;
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unsigned char m_pt;
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u_int16_t seq_num;
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u_int32_t timestamp;
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u_int32_t ssrc;
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u_int32_t csrc[];
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} __attribute__ ((packed));
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struct rtp_payload_type {
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unsigned int payload_type;
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str encoding_with_params;
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str encoding;
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unsigned int clock_rate;
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str encoding_parameters;
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};
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int rtp_payload(struct rtp_header **out, str *p, const str *s);
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const struct rtp_payload_type *rtp_payload_type(unsigned int, GHashTable *);
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int rtp_avp2savp(str *, struct crypto_context *);
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int rtp_savp2avp(str *, struct crypto_context *);
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void rtp_append_mki(str *s, struct crypto_context *c);
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int srtp_payloads(str *to_auth, str *to_decrypt, str *auth_tag, str *mki,
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int auth_len, int mki_len,
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const str *packet, const str *payload);
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#endif
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