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00026 #ifndef _ASTERISK_RTP_H
00027 #define _ASTERISK_RTP_H
00028
00029 #include "asterisk/network.h"
00030
00031 #include "asterisk/frame.h"
00032 #include "asterisk/io.h"
00033 #include "asterisk/sched.h"
00034 #include "asterisk/channel.h"
00035 #include "asterisk/linkedlists.h"
00036
00037 #if defined(__cplusplus) || defined(c_plusplus)
00038 extern "C" {
00039 #endif
00040
00041
00042
00043 #define AST_RTP_DTMF (1 << 0)
00044
00045 #define AST_RTP_CN (1 << 1)
00046
00047 #define AST_RTP_CISCO_DTMF (1 << 2)
00048
00049 #define AST_RTP_MAX AST_RTP_CISCO_DTMF
00050
00051
00052 #define MAX_RTP_PT 256
00053
00054 #define FLAG_3389_WARNING (1 << 0)
00055
00056 enum ast_rtp_options {
00057 AST_RTP_OPT_G726_NONSTANDARD = (1 << 0),
00058 };
00059
00060 enum ast_rtp_get_result {
00061
00062 AST_RTP_GET_FAILED = 0,
00063
00064 AST_RTP_TRY_PARTIAL,
00065
00066 AST_RTP_TRY_NATIVE,
00067 };
00068
00069 struct ast_rtp;
00070
00071
00072
00073 struct ast_rtp_protocol {
00074
00075 enum ast_rtp_get_result (* const get_rtp_info)(struct ast_channel *chan, struct ast_rtp **rtp);
00076
00077 enum ast_rtp_get_result (* const get_vrtp_info)(struct ast_channel *chan, struct ast_rtp **rtp);
00078
00079 enum ast_rtp_get_result (* const get_trtp_info)(struct ast_channel *chan, struct ast_rtp **rtp);
00080
00081 int (* const set_rtp_peer)(struct ast_channel *chan, struct ast_rtp *peer, struct ast_rtp *vpeer, struct ast_rtp *tpeer, int codecs, int nat_active);
00082 int (* const get_codec)(struct ast_channel *chan);
00083 const char * const type;
00084 AST_LIST_ENTRY(ast_rtp_protocol) list;
00085 };
00086
00087
00088 struct ast_rtp_quality {
00089 unsigned int local_ssrc;
00090 unsigned int local_lostpackets;
00091 double local_jitter;
00092 unsigned int local_count;
00093 unsigned int remote_ssrc;
00094 unsigned int remote_lostpackets;
00095 double remote_jitter;
00096 unsigned int remote_count;
00097 double rtt;
00098 };
00099
00100
00101 typedef int (*ast_rtp_callback)(struct ast_rtp *rtp, struct ast_frame *f, void *data);
00102
00103
00104
00105
00106
00107 size_t ast_rtp_alloc_size(void);
00108
00109
00110
00111
00112
00113
00114
00115
00116
00117
00118 struct ast_rtp *ast_rtp_new(struct sched_context *sched, struct io_context *io, int rtcpenable, int callbackmode);
00119
00120
00121
00122
00123
00124
00125
00126
00127
00128
00129
00130
00131
00132 struct ast_rtp *ast_rtp_new_with_bindaddr(struct sched_context *sched, struct io_context *io, int rtcpenable, int callbackmode, struct in_addr in);
00133
00134 void ast_rtp_set_peer(struct ast_rtp *rtp, struct sockaddr_in *them);
00135
00136
00137
00138
00139
00140
00141
00142
00143
00144
00145
00146
00147
00148
00149
00150
00151 void ast_rtp_set_alt_peer(struct ast_rtp *rtp, struct sockaddr_in *alt);
00152
00153
00154 int ast_rtp_get_peer(struct ast_rtp *rtp, struct sockaddr_in *them);
00155
00156 void ast_rtp_get_us(struct ast_rtp *rtp, struct sockaddr_in *us);
00157
00158 struct ast_rtp *ast_rtp_get_bridged(struct ast_rtp *rtp);
00159
00160
00161 void ast_rtp_destroy(struct ast_rtp *rtp);
00162
00163 void ast_rtp_reset(struct ast_rtp *rtp);
00164
00165
00166 void ast_rtp_stop(struct ast_rtp *rtp);
00167
00168 void ast_rtp_set_callback(struct ast_rtp *rtp, ast_rtp_callback callback);
00169
00170 void ast_rtp_set_data(struct ast_rtp *rtp, void *data);
00171
00172 int ast_rtp_write(struct ast_rtp *rtp, struct ast_frame *f);
00173
00174 struct ast_frame *ast_rtp_read(struct ast_rtp *rtp);
00175
00176 struct ast_frame *ast_rtcp_read(struct ast_rtp *rtp);
00177
00178 int ast_rtp_fd(struct ast_rtp *rtp);
00179
00180 int ast_rtcp_fd(struct ast_rtp *rtp);
00181
00182 int ast_rtp_senddigit_begin(struct ast_rtp *rtp, char digit);
00183
00184 int ast_rtp_senddigit_end(struct ast_rtp *rtp, char digit);
00185
00186 int ast_rtp_sendcng(struct ast_rtp *rtp, int level);
00187
00188 int ast_rtp_setqos(struct ast_rtp *rtp, int tos, int cos, char *desc);
00189
00190 void ast_rtp_new_source(struct ast_rtp *rtp);
00191
00192
00193 void ast_rtp_pt_clear(struct ast_rtp* rtp);
00194
00195 void ast_rtp_pt_default(struct ast_rtp* rtp);
00196
00197
00198 void ast_rtp_pt_copy(struct ast_rtp *dest, struct ast_rtp *src);
00199
00200
00201 void ast_rtp_set_m_type(struct ast_rtp* rtp, int pt);
00202
00203
00204 void ast_rtp_unset_m_type(struct ast_rtp* rtp, int pt);
00205
00206
00207 int ast_rtp_set_rtpmap_type(struct ast_rtp* rtp, int pt,
00208 char *mimeType, char *mimeSubtype,
00209 enum ast_rtp_options options);
00210
00211
00212 struct rtpPayloadType ast_rtp_lookup_pt(struct ast_rtp* rtp, int pt);
00213 int ast_rtp_lookup_code(struct ast_rtp* rtp, int isAstFormat, int code);
00214
00215 void ast_rtp_get_current_formats(struct ast_rtp* rtp,
00216 int* astFormats, int* nonAstFormats);
00217
00218
00219 const char *ast_rtp_lookup_mime_subtype(int isAstFormat, int code,
00220 enum ast_rtp_options options);
00221
00222
00223 char *ast_rtp_lookup_mime_multiple(char *buf, size_t size, const int capability,
00224 const int isAstFormat, enum ast_rtp_options options);
00225
00226 void ast_rtp_setnat(struct ast_rtp *rtp, int nat);
00227
00228 int ast_rtp_getnat(struct ast_rtp *rtp);
00229
00230
00231 void ast_rtp_setdtmf(struct ast_rtp *rtp, int dtmf);
00232
00233
00234 void ast_rtp_setdtmfcompensate(struct ast_rtp *rtp, int compensate);
00235
00236
00237 void ast_rtp_setstun(struct ast_rtp *rtp, int stun_enable);
00238
00239
00240
00241
00242
00243
00244
00245
00246
00247
00248
00249 int ast_stun_request(int s, struct sockaddr_in *dst,
00250 const char *username, struct sockaddr_in *answer);
00251
00252
00253
00254
00255 void ast_rtp_stun_request(struct ast_rtp *rtp, struct sockaddr_in *suggestion, const char *username);
00256
00257
00258
00259
00260 int ast_rtp_bridge(struct ast_channel *c0, struct ast_channel *c1, int flags, struct ast_frame **fo, struct ast_channel **rc, int timeoutms);
00261
00262
00263 int ast_rtp_proto_register(struct ast_rtp_protocol *proto);
00264
00265
00266 void ast_rtp_proto_unregister(struct ast_rtp_protocol *proto);
00267
00268 int ast_rtp_make_compatible(struct ast_channel *dest, struct ast_channel *src, int media);
00269
00270
00271
00272 int ast_rtp_early_bridge(struct ast_channel *c0, struct ast_channel *c1);
00273
00274
00275 char *ast_rtp_get_quality(struct ast_rtp *rtp, struct ast_rtp_quality *qual);
00276
00277
00278 int ast_rtcp_send_h261fur(void *data);
00279
00280 void ast_rtp_init(void);
00281 int ast_rtp_reload(void);
00282 void ast_rtp_new_init(struct ast_rtp *rtp);
00283
00284
00285 void ast_rtp_codec_setpref(struct ast_rtp *rtp, struct ast_codec_pref *prefs);
00286
00287
00288 struct ast_codec_pref *ast_rtp_codec_getpref(struct ast_rtp *rtp);
00289
00290
00291 int ast_rtp_codec_getformat(int pt);
00292
00293
00294 void ast_rtp_set_rtptimeout(struct ast_rtp *rtp, int timeout);
00295
00296 void ast_rtp_set_rtpholdtimeout(struct ast_rtp *rtp, int timeout);
00297
00298 void ast_rtp_set_rtpkeepalive(struct ast_rtp *rtp, int period);
00299
00300 int ast_rtp_get_rtpkeepalive(struct ast_rtp *rtp);
00301
00302 int ast_rtp_get_rtpholdtimeout(struct ast_rtp *rtp);
00303
00304 int ast_rtp_get_rtptimeout(struct ast_rtp *rtp);
00305
00306 void ast_rtp_set_rtptimers_onhold(struct ast_rtp *rtp);
00307
00308 #if defined(__cplusplus) || defined(c_plusplus)
00309 }
00310 #endif
00311
00312 #endif