2 * Asterisk -- A telephony toolkit for Linux.
4 * Application convenience functions, designed to give consistent
5 * look and feel to asterisk apps.
7 * Copyright (C) 1999-2004, Digium, Inc.
9 * Mark Spencer <markster@digium.com>
11 * This program is free software, distributed under the terms of
12 * the GNU General Public License
15 #ifndef _ASTERISK_APP_H
16 #define _ASTERISK_APP_H
18 #if defined(__cplusplus) || defined(c_plusplus)
21 //! Plays a stream and gets DTMF data from a channel
23 * \param c Which channel one is interacting with
24 * \param prompt File to pass to ast_streamfile (the one that you wish to play)
25 * \param s The location where the DTMF data will be stored
26 * \param maxlen Max Length of the data
27 * \param timeout Timeout length waiting for data(in milliseconds). Set to 0 for standard timeout(six seconds), or -1 for no time out.
29 * This function was designed for application programmers for situations where they need
30 * to play a message and then get some DTMF data in response to the message. If a digit
31 * is pressed during playback, it will immediately break out of the message and continue
32 * execution of your code.
34 extern int ast_app_getdata(struct ast_channel *c, char *prompt, char *s, int maxlen, int timeout);
36 /* Full version with audiofd and controlfd. NOTE: returns '2' on ctrlfd available, not '1' like other full functions */
37 extern int ast_app_getdata_full(struct ast_channel *c, char *prompt, char *s, int maxlen, int timeout, int audiofd, int ctrlfd);
39 //! Record voice (after playing prompt if specified), waiting for silence (in ms) up to a given timeout (in s) or '#'
40 int ast_app_getvoice(struct ast_channel *c, char *dest, char *dstfmt, char *prompt, int silence, int maxsec);
42 //! Determine if a given mailbox has any voicemail
43 extern int ast_app_has_voicemail(const char *mailbox);
45 //! Determine number of new/old messages in a mailbox
46 extern int ast_app_messagecount(const char *mailbox, int *newmsgs, int *oldmsgs);
48 //! Safely spawn an external program while closingn file descriptors
49 extern int ast_safe_system(const char *s);
51 //! Send DTMF to chan (optionally entertain peer)
52 int ast_dtmf_stream(struct ast_channel *chan, struct ast_channel *peer, char *digits, int between);
54 //! Stream a filename (or file descriptor) as a generator.
55 int ast_linear_stream(struct ast_channel *chan, const char *filename, int fd, int allowoverride);
57 //! Stream a file with fast forward, pause, reverse.
58 int ast_control_streamfile(struct ast_channel *chan, char *file, char *fwd, char *rev, char *stop, char *pause, int skipms);
60 //! Play a stream and wait for a digit, returning the digit that was pressed
61 int ast_play_and_wait(struct ast_channel *chan, char *fn);
63 //! Record a file for a max amount of time (in seconds), in a given list of formats separated by '|', outputting the duration of the recording, and with a maximum
64 // permitted silence time in milliseconds of 'maxsilence' under 'silencethreshold' or use '-1' for either or both parameters for defaults.
65 int ast_play_and_record(struct ast_channel *chan, char *playfile, char *recordfile, int maxtime_sec, char *fmt, int *duration, int silencethreshold, int maxsilence_ms);
67 //! Record a message and prepend the message to the given record file after playing the optional playfile (or a beep), storing the duration in 'duration' and with a maximum
68 // permitted silence time in milliseconds of 'maxsilence' under 'silencethreshold' or use '-1' for either or both parameters for defaults.
69 int ast_play_and_prepend(struct ast_channel *chan, char *playfile, char *recordfile, int maxtime_sec, char *fmt, int *duration, int beep, int silencethreshold, int maxsilence_ms);
71 #if defined(__cplusplus) || defined(c_plusplus)