| patron | Дата: Четверг, 03.09.2015, 21:31 | Сообщение # 1 |
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| описание на с++
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| patron | Дата: Четверг, 03.09.2015, 21:32 | Сообщение # 2 |
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| typedef unsigned char u_int8;
typedef unsigned short u_int16;
typedef unsigned long u_int32;
/**
** RTP header body
**/
typedef struct
{
u_int8 flags; /* Version(2),Padding(1), Ext(1), Cc(4) */
u_int8 mk_pt; /* Marker(1), PlayLoad Type(7) */
u_int16 sq_nb; /* Sequence Number */
u_int32 ts; /* Timestamp */
u_int32 ssrc; /* SSRC */
u_int32 *csrc; /* CSRC's table */
} rtp_hdr;
/**
** RTP header extension
**/
typedef struct
{
u_int16 ext_type; /* Extension profile */
u_int16 ext_len; /* Number of extensions */
u_int32 *hd_ext; /* Extension's table */
} rtp_ext;
/**
** RTP Packet
**/
typedef struct
{
rtp_hdr *RTP_header; /* Header RTP */
rtp_ext *RTP_extension; /* extension of the header if exist */
char *payload; /* payload portion of RTP packet */
long payload_len; /* The length of the payload */
} rtp_pkt;
/**
** RTP Context body
**/
typedef struct
{
int context_num; /* Context number - send/receive */
u_int32 my_ssrc; /* SSRC number - send/receive */
u_int32 sending_pkt_count; /* Number of packets sent - send/receive */
u_int32 sending_octet_count; /* Number of bytes sent - send/receive */
u_int8 version; /* Version - receive */
u_int8 marker; /* Marker flag - receive */
u_int8 padding; /* Padding length - receive */
u_int8 CSRClen; /* CSRC length - send/receive */
u_int8 pt; /* Payload type - send/receive */
u_int32 *CSRCList; /* CSRC list - send/receive */
u_int32 my_previous_ssrc; /* actually unused */
u_int32 init_RTP_timestamp; /* First value of timestamp - send/receive */
u_int32 RTP_timestamp; /* current value of timestamp - receive */
u_int32 time_elapsed; /* Time elapsed since the beginning - send/receive */
u_int16 init_seq_no; /* First sequence number - send/receive */
u_int16 seq_no; /* Current sequence number - send/receive */
rtp_ext *hdr_extension; /* Extension header - send/receive */
void *conx_data; /* Network data */
} sess_context_t;
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| patron | Дата: Воскресенье, 06.09.2015, 11:00 | Сообщение # 3 |
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| PT encoding audio/video clock rate channels
name (A/V) (Hz) (audio)
_______________________________________________________________
0 PCMU A 8000 1 [RFC3551]
1 Reserved
2 Reserved
3 GSM A 8000 1 [RFC3551]
4 G723 A 8000 1 [Kumar]
5 DVI4 A 8000 1 [RFC3551]
6 DVI4 A 16000 1 [RFC3551]
7 LPC A 8000 1 [RFC3551]
8 PCMA A 8000 1 [RFC3551]
9 G722 A 8000 1 [RFC3551]
10 L16 A 44100 2 [RFC3551]
11 L16 A 44100 1 [RFC3551]
12 QCELP A 8000 1
13 CN A 8000 1 [RFC3389]
14 MPA A 90000 [RFC3551,RFC2250]
15 G728 A 8000 1 [RFC3551]
16 DVI4 A 11025 1 [DiPol]
17 DVI4 A 22050 1 [DiPol]
18 G729 A 8000 1
19 reserved A
20 unassigned A
21 unassigned A
22 unassigned A
23 unassigned A
24 unassigned V
25 CelB V 90000 [RFC2029]
26 JPEG V 90000 [RFC2435]
27 unassigned V
28 nv V 90000 [RFC3551]
29 unassigned V
30 unassigned V
31 H261 V 90000 [RFC2032]
32 MPV V 90000 [RFC2250]
33 MP2T AV 90000 [RFC2250]
34 H263 V 90000 [Zhu]
35--71 unassigned ?
72--76 reserved for RTCP conflict avoidance [RFC3550]
77--95 unassigned ?
96--127 dynamic ?
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