tap-rtp-common.h

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#ifndef __TAP_RTP_COMMON_H__
#define __TAP_RTP_COMMON_H__
 
#include "ui/rtp_stream.h"
 
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
 
/* type of error when saving voice in a file didn't succeed */
typedef enum {
    TAP_RTP_NO_ERROR,
    TAP_RTP_WRONG_CODEC,
    TAP_RTP_WRONG_LENGTH,
    TAP_RTP_PADDING_ERROR,
    TAP_RTP_SHORT_FRAME,
    TAP_RTP_FILE_OPEN_ERROR,
    TAP_RTP_FILE_WRITE_ERROR,
    TAP_RTP_NO_DATA
} tap_rtp_error_type_t;
 
typedef struct _tap_rtp_save_info_t {
    FILE *fp;
    uint32_t count;
    tap_rtp_error_type_t error_type;
    bool saved;
} tap_rtp_save_info_t;
 
typedef struct _rtpstream_info_calc {
    char *src_addr_str;
    uint16_t src_port;
    char *dst_addr_str;
    uint16_t dst_port;
    uint32_t ssrc;
    char *all_payload_type_names; /* Name of codec derived from fixed or dynamic codec names */
    uint32_t packet_count;
    uint32_t total_nr;
    uint32_t packet_expected; /* Count of expected packets, derived from length of RTP stream */
    int32_t lost_num;
    double lost_perc;
    double max_delta;
    double min_delta;
    double mean_delta;
    double min_jitter;
    double max_jitter;
    double max_skew;
    double mean_jitter;
    bool problem; /* Indication that RTP stream contains something unusual -GUI should indicate it somehow */
    double clock_drift_ms;
    double freq_drift_hz;
    double freq_drift_perc;
    double duration_ms;
    uint32_t sequence_err;
    double start_time_ms; 
    uint32_t first_packet_num;
    uint32_t last_packet_num;
} rtpstream_info_calc_t;
 
void rtpstream_info_init(rtpstream_info_t* info);
rtpstream_info_t *rtpstream_info_malloc_and_init(void);
void rtpstream_info_copy_deep(rtpstream_info_t *dest, const rtpstream_info_t *src);
rtpstream_info_t *rtpstream_info_malloc_and_copy_deep(const rtpstream_info_t *src);
void rtpstream_info_free_data(rtpstream_info_t* info);
void rtpstream_info_free_all(rtpstream_info_t* info);
 
int rtpstream_info_cmp(const void *aa, const void *bb);
 
bool rtpstream_info_is_reverse(const rtpstream_info_t *stream_a, rtpstream_info_t *stream_b);
 
bool rtpstream_is_payload_used(const rtpstream_info_t *stream_info, const uint8_t payload_type);
 
/****************************************************************************/
/* INTERFACE */
 
void register_tap_listener_rtpstream(rtpstream_tapinfo_t *tapinfo, const char *fstring, rtpstream_tap_error_cb tap_error);
 
void remove_tap_listener_rtpstream(rtpstream_tapinfo_t *tapinfo);
 
void rtpstream_reset(rtpstream_tapinfo_t *tapinfo);
 
void rtpstream_reset_cb(void*);
void rtp_write_header(rtpstream_info_t*, FILE*);
tap_packet_status rtpstream_packet_cb(void*, packet_info*, epan_dissect_t *, const void *, tap_flags_t);
 
void rtpstream_info_calculate(const rtpstream_info_t *strinfo, rtpstream_info_calc_t *calc);
 
void rtpstream_info_calc_free(rtpstream_info_calc_t *calc);
 
void rtpstream_info_analyse_init(rtpstream_info_t *stream_info, const packet_info *pinfo, const struct _rtp_info *rtpinfo);
 
void rtpstream_info_analyse_process(rtpstream_info_t *stream_info, const packet_info *pinfo, const struct _rtp_info *rtpinfo);
 
unsigned rtpstream_to_hash(const void *key);
 
void rtpstream_info_multihash_insert(GHashTable *multihash, rtpstream_info_t *new_stream_info);
 
rtpstream_info_t *rtpstream_info_multihash_lookup(GHashTable *multihash, rtpstream_id_t *stream_id);
 
void rtpstream_info_multihash_destroy_value(void *key, void *value, void *user_data);
 
#ifdef __cplusplus
}
#endif /* __cplusplus */
 
#endif /* __TAP_RTP_COMMON_H__ */