55b1ee298e
using old methods of parsing arguments to using the standard macros. However, the big change is that the really old way of specifying application and arguments separated by a comma will no longer work (e.g. NoOp,foo|bar). Instead, the way that has been recommended since long before 1.0 will become the only method available (e.g. NoOp(foo,bar). git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@76703 65c4cc65-6c06-0410-ace0-fbb531ad65f3
375 lines
10 KiB
C
375 lines
10 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 1999 - 2005, Digium, Inc.
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*
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* Matthew Fredrickson <creslin@digium.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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*
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* \brief Trivial application to record a sound file
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*
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* \author Matthew Fredrickson <creslin@digium.com>
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*
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* \ingroup applications
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*/
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#include "asterisk.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "asterisk/lock.h"
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#include "asterisk/file.h"
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#include "asterisk/logger.h"
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#include "asterisk/channel.h"
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#include "asterisk/pbx.h"
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#include "asterisk/module.h"
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#include "asterisk/translate.h"
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#include "asterisk/dsp.h"
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#include "asterisk/utils.h"
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#include "asterisk/options.h"
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#include "asterisk/app.h"
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static char *app = "Record";
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static char *synopsis = "Record to a file";
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static char *descrip =
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" Record(filename.format|silence[|maxduration][|options])\n\n"
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"Records from the channel into a given filename. If the file exists it will\n"
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"be overwritten.\n"
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"- 'format' is the format of the file type to be recorded (wav, gsm, etc).\n"
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"- 'silence' is the number of seconds of silence to allow before returning.\n"
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"- 'maxduration' is the maximum recording duration in seconds. If missing\n"
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"or 0 there is no maximum.\n"
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"- 'options' may contain any of the following letters:\n"
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" 'a' : append to existing recording rather than replacing\n"
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" 'n' : do not answer, but record anyway if line not yet answered\n"
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" 'q' : quiet (do not play a beep tone)\n"
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" 's' : skip recording if the line is not yet answered\n"
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" 't' : use alternate '*' terminator key (DTMF) instead of default '#'\n"
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" 'x' : ignore all terminator keys (DTMF) and keep recording until hangup\n"
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"\n"
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"If filename contains '%d', these characters will be replaced with a number\n"
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"incremented by one each time the file is recorded. A channel variable\n"
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"named RECORDED_FILE will also be set, which contains the final filemname.\n\n"
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"Use 'core show file formats' to see the available formats on your system\n\n"
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"User can press '#' to terminate the recording and continue to the next priority.\n\n"
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"If the user should hangup during a recording, all data will be lost and the\n"
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"application will teminate. \n";
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enum {
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OPTION_APPEND = (1 << 0),
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OPTION_NOANSWER = (1 << 1),
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OPTION_QUIET = (1 << 2),
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OPTION_SKIP = (1 << 3),
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OPTION_STAR_TERMINATE = (1 << 4),
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OPTION_IGNORE_TERMINATE = (1 << 5),
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FLAG_HAS_PERCENT = (1 << 6),
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};
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AST_APP_OPTIONS(app_opts,{
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AST_APP_OPTION('a', OPTION_APPEND),
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AST_APP_OPTION('n', OPTION_NOANSWER),
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AST_APP_OPTION('q', OPTION_QUIET),
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AST_APP_OPTION('s', OPTION_SKIP),
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AST_APP_OPTION('t', OPTION_STAR_TERMINATE),
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AST_APP_OPTION('x', OPTION_IGNORE_TERMINATE),
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});
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static int record_exec(struct ast_channel *chan, void *data)
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{
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int res = 0;
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int count = 0;
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char *ext = NULL, *opts[0];
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char *parse, *dir, *file;
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int i = 0;
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char tmp[256];
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struct ast_filestream *s = NULL;
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struct ast_frame *f = NULL;
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struct ast_dsp *sildet = NULL; /* silence detector dsp */
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int totalsilence = 0;
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int dspsilence = 0;
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int silence = 0; /* amount of silence to allow */
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int gotsilence = 0; /* did we timeout for silence? */
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int maxduration = 0; /* max duration of recording in milliseconds */
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int gottimeout = 0; /* did we timeout for maxduration exceeded? */
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int terminator = '#';
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int rfmt = 0;
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int ioflags;
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int waitres;
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struct ast_silence_generator *silgen = NULL;
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struct ast_flags flags;
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AST_DECLARE_APP_ARGS(args,
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AST_APP_ARG(filename);
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AST_APP_ARG(silence);
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AST_APP_ARG(maxduration);
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AST_APP_ARG(options);
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);
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/* The next few lines of code parse out the filename and header from the input string */
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if (ast_strlen_zero(data)) { /* no data implies no filename or anything is present */
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ast_log(LOG_WARNING, "Record requires an argument (filename)\n");
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return -1;
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}
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parse = ast_strdupa(data);
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AST_STANDARD_APP_ARGS(args, parse);
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if (args.argc == 4)
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ast_app_parse_options(app_opts, &flags, opts, args.options);
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if (!ast_strlen_zero(args.filename)) {
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if (strstr(args.filename, "%d"))
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ast_set_flag(&flags, FLAG_HAS_PERCENT);
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ext = strrchr(args.filename, '.'); /* to support filename with a . in the filename, not format */
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if (!ext)
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ext = strchr(args.filename, ':');
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if (ext) {
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*ext = '\0';
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ext++;
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}
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}
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if (!ext) {
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ast_log(LOG_WARNING, "No extension specified to filename!\n");
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return -1;
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}
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if (args.silence) {
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if ((sscanf(args.silence, "%d", &i) == 1) && (i > -1)) {
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silence = i * 1000;
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} else if (!ast_strlen_zero(args.silence)) {
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ast_log(LOG_WARNING, "'%s' is not a valid silence duration\n", args.silence);
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}
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}
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if (args.maxduration) {
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if ((sscanf(args.maxduration, "%d", &i) == 1) && (i > -1))
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/* Convert duration to milliseconds */
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maxduration = i * 1000;
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else if (!ast_strlen_zero(args.maxduration))
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ast_log(LOG_WARNING, "'%s' is not a valid maximum duration\n", args.maxduration);
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}
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if (ast_test_flag(&flags, OPTION_STAR_TERMINATE))
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terminator = '*';
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if (ast_test_flag(&flags, OPTION_IGNORE_TERMINATE))
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terminator = '\0';
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/* done parsing */
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/* these are to allow the use of the %d in the config file for a wild card of sort to
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create a new file with the inputed name scheme */
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if (ast_test_flag(&flags, FLAG_HAS_PERCENT)) {
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AST_DECLARE_APP_ARGS(fname,
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AST_APP_ARG(piece)[100];
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);
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char *tmp2 = ast_strdupa(args.filename);
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char countstring[15];
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int i;
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/* Separate each piece out by the format specifier */
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AST_NONSTANDARD_APP_ARGS(fname, tmp2, '%');
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do {
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int tmplen;
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/* First piece has no leading percent, so it's copied verbatim */
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ast_copy_string(tmp, fname.piece[0], sizeof(tmp));
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tmplen = strlen(tmp);
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for (i = 1; i < fname.argc; i++) {
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if (fname.piece[i][0] == 'd') {
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/* Substitute the count */
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snprintf(countstring, sizeof(countstring), "%d", count);
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ast_copy_string(tmp + tmplen, countstring, sizeof(tmp) - tmplen);
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tmplen += strlen(countstring);
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} else if (tmplen + 2 < sizeof(tmp)) {
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/* Unknown format specifier - just copy it verbatim */
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tmp[tmplen++] = '%';
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tmp[tmplen++] = fname.piece[i][0];
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}
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/* Copy the remaining portion of the piece */
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ast_copy_string(tmp + tmplen, &(fname.piece[i][1]), sizeof(tmp) - tmplen);
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}
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count++;
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} while (ast_fileexists(tmp, ext, chan->language) > 0);
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pbx_builtin_setvar_helper(chan, "RECORDED_FILE", tmp);
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} else
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ast_copy_string(tmp, args.filename, sizeof(tmp));
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/* end of routine mentioned */
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if (chan->_state != AST_STATE_UP) {
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if (ast_test_flag(&flags, OPTION_SKIP)) {
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/* At the user's option, skip if the line is not up */
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return 0;
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} else if (!ast_test_flag(&flags, OPTION_NOANSWER)) {
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/* Otherwise answer unless we're supposed to record while on-hook */
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res = ast_answer(chan);
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}
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}
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if (res) {
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ast_log(LOG_WARNING, "Could not answer channel '%s'\n", chan->name);
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goto out;
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}
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if (!ast_test_flag(&flags, OPTION_QUIET)) {
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/* Some code to play a nice little beep to signify the start of the record operation */
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res = ast_streamfile(chan, "beep", chan->language);
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if (!res) {
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res = ast_waitstream(chan, "");
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} else {
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ast_log(LOG_WARNING, "ast_streamfile failed on %s\n", chan->name);
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}
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ast_stopstream(chan);
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}
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/* The end of beep code. Now the recording starts */
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if (silence > 0) {
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rfmt = chan->readformat;
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res = ast_set_read_format(chan, AST_FORMAT_SLINEAR);
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if (res < 0) {
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ast_log(LOG_WARNING, "Unable to set to linear mode, giving up\n");
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return -1;
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}
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sildet = ast_dsp_new();
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if (!sildet) {
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ast_log(LOG_WARNING, "Unable to create silence detector :(\n");
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return -1;
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}
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ast_dsp_set_threshold(sildet, 256);
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}
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/* Create the directory if it does not exist. */
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dir = ast_strdupa(tmp);
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if ((file = strrchr(dir, '/')))
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*file++ = '\0';
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ast_mkdir (dir, 0777);
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ioflags = ast_test_flag(&flags, OPTION_APPEND) ? O_CREAT|O_APPEND|O_WRONLY : O_CREAT|O_TRUNC|O_WRONLY;
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s = ast_writefile(tmp, ext, NULL, ioflags, 0, AST_FILE_MODE);
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if (!s) {
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ast_log(LOG_WARNING, "Could not create file %s\n", args.filename);
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goto out;
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}
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if (ast_opt_transmit_silence)
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silgen = ast_channel_start_silence_generator(chan);
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/* Request a video update */
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ast_indicate(chan, AST_CONTROL_VIDUPDATE);
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if (maxduration <= 0)
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maxduration = -1;
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while ((waitres = ast_waitfor(chan, maxduration)) > -1) {
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if (maxduration > 0) {
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if (waitres == 0) {
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gottimeout = 1;
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break;
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}
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maxduration = waitres;
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}
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f = ast_read(chan);
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if (!f) {
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res = -1;
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break;
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}
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if (f->frametype == AST_FRAME_VOICE) {
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res = ast_writestream(s, f);
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if (res) {
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ast_log(LOG_WARNING, "Problem writing frame\n");
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ast_frfree(f);
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break;
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}
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if (silence > 0) {
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dspsilence = 0;
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ast_dsp_silence(sildet, f, &dspsilence);
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if (dspsilence) {
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totalsilence = dspsilence;
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} else {
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totalsilence = 0;
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}
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if (totalsilence > silence) {
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/* Ended happily with silence */
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ast_frfree(f);
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gotsilence = 1;
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break;
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}
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}
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} else if (f->frametype == AST_FRAME_VIDEO) {
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res = ast_writestream(s, f);
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if (res) {
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ast_log(LOG_WARNING, "Problem writing frame\n");
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ast_frfree(f);
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break;
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}
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} else if ((f->frametype == AST_FRAME_DTMF) &&
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(f->subclass == terminator)) {
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ast_frfree(f);
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break;
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}
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ast_frfree(f);
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}
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if (!f) {
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ast_debug(1, "Got hangup\n");
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res = -1;
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}
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if (gotsilence) {
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ast_stream_rewind(s, silence - 1000);
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ast_truncstream(s);
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} else if (!gottimeout) {
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/* Strip off the last 1/4 second of it */
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ast_stream_rewind(s, 250);
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ast_truncstream(s);
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}
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ast_closestream(s);
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if (silgen)
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ast_channel_stop_silence_generator(chan, silgen);
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out:
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if ((silence > 0) && rfmt) {
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res = ast_set_read_format(chan, rfmt);
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if (res)
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ast_log(LOG_WARNING, "Unable to restore read format on '%s'\n", chan->name);
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if (sildet)
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ast_dsp_free(sildet);
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}
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return res;
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}
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static int unload_module(void)
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{
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return ast_unregister_application(app);
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}
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static int load_module(void)
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{
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return ast_register_application(app, record_exec, synopsis, descrip);
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}
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AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Trivial Record Application");
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