diff options
Diffstat (limited to '1.4.23-rc4/apps/app_talkdetect.c')
-rw-r--r-- | 1.4.23-rc4/apps/app_talkdetect.c | 227 |
1 files changed, 0 insertions, 227 deletions
diff --git a/1.4.23-rc4/apps/app_talkdetect.c b/1.4.23-rc4/apps/app_talkdetect.c deleted file mode 100644 index 79cbbd5d0..000000000 --- a/1.4.23-rc4/apps/app_talkdetect.c +++ /dev/null @@ -1,227 +0,0 @@ -/* - * Asterisk -- An open source telephony toolkit. - * - * Copyright (C) 1999 - 2005, Digium, Inc. - * - * Mark Spencer <markster@digium.com> - * - * See http://www.asterisk.org for more information about - * the Asterisk project. Please do not directly contact - * any of the maintainers of this project for assistance; - * the project provides a web site, mailing lists and IRC - * channels for your use. - * - * This program is free software, distributed under the terms of - * the GNU General Public License Version 2. See the LICENSE file - * at the top of the source tree. - */ - -/*! \file - * - * \brief Playback a file with audio detect - * - * \author Mark Spencer <markster@digium.com> - * - * \ingroup applications - */ - -#include "asterisk.h" - -ASTERISK_FILE_VERSION(__FILE__, "$Revision$") - -#include <stdlib.h> -#include <stdio.h> -#include <string.h> - -#include "asterisk/lock.h" -#include "asterisk/file.h" -#include "asterisk/logger.h" -#include "asterisk/channel.h" -#include "asterisk/pbx.h" -#include "asterisk/module.h" -#include "asterisk/translate.h" -#include "asterisk/utils.h" -#include "asterisk/dsp.h" - -static char *app = "BackgroundDetect"; - -static char *synopsis = "Background a file with talk detect"; - -static char *descrip = -" BackgroundDetect(filename[|sil[|min|[max]]]): Plays back a given\n" -"filename, waiting for interruption from a given digit (the digit must\n" -"start the beginning of a valid extension, or it will be ignored).\n" -"During the playback of the file, audio is monitored in the receive\n" -"direction, and if a period of non-silence which is greater than 'min' ms\n" -"yet less than 'max' ms is followed by silence for at least 'sil' ms then\n" -"the audio playback is aborted and processing jumps to the 'talk' extension\n" -"if available. If unspecified, sil, min, and max default to 1000, 100, and\n" -"infinity respectively.\n"; - - -static int background_detect_exec(struct ast_channel *chan, void *data) -{ - int res = 0; - struct ast_module_user *u; - char *tmp; - char *options; - char *stringp; - struct ast_frame *fr; - int notsilent=0; - struct timeval start = { 0, 0}; - int sil = 1000; - int min = 100; - int max = -1; - int x; - int origrformat=0; - struct ast_dsp *dsp; - - if (ast_strlen_zero(data)) { - ast_log(LOG_WARNING, "BackgroundDetect requires an argument (filename)\n"); - return -1; - } - - u = ast_module_user_add(chan); - - tmp = ast_strdupa(data); - - stringp=tmp; - strsep(&stringp, "|"); - options = strsep(&stringp, "|"); - if (options) { - if ((sscanf(options, "%d", &x) == 1) && (x > 0)) - sil = x; - options = strsep(&stringp, "|"); - if (options) { - if ((sscanf(options, "%d", &x) == 1) && (x > 0)) - min = x; - options = strsep(&stringp, "|"); - if (options) { - if ((sscanf(options, "%d", &x) == 1) && (x > 0)) - max = x; - } - } - } - ast_log(LOG_DEBUG, "Preparing detect of '%s', sil=%d,min=%d,max=%d\n", - tmp, sil, min, max); - if (chan->_state != AST_STATE_UP) { - /* Otherwise answer unless we're supposed to send this while on-hook */ - res = ast_answer(chan); - } - if (!res) { - origrformat = chan->readformat; - if ((res = ast_set_read_format(chan, AST_FORMAT_SLINEAR))) - ast_log(LOG_WARNING, "Unable to set read format to linear!\n"); - } - if (!(dsp = ast_dsp_new())) { - ast_log(LOG_WARNING, "Unable to allocate DSP!\n"); - res = -1; - } - if (!res) { - ast_stopstream(chan); - res = ast_streamfile(chan, tmp, chan->language); - if (!res) { - while(chan->stream) { - res = ast_sched_wait(chan->sched); - if ((res < 0) && !chan->timingfunc) { - res = 0; - break; - } - if (res < 0) - res = 1000; - res = ast_waitfor(chan, res); - if (res < 0) { - ast_log(LOG_WARNING, "Waitfor failed on %s\n", chan->name); - break; - } else if (res > 0) { - fr = ast_read(chan); - if (!fr) { - res = -1; - break; - } else if (fr->frametype == AST_FRAME_DTMF) { - char t[2]; - t[0] = fr->subclass; - t[1] = '\0'; - if (ast_canmatch_extension(chan, chan->context, t, 1, chan->cid.cid_num)) { - /* They entered a valid extension, or might be anyhow */ - res = fr->subclass; - ast_frfree(fr); - break; - } - } else if ((fr->frametype == AST_FRAME_VOICE) && (fr->subclass == AST_FORMAT_SLINEAR)) { - int totalsilence; - int ms; - res = ast_dsp_silence(dsp, fr, &totalsilence); - if (res && (totalsilence > sil)) { - /* We've been quiet a little while */ - if (notsilent) { - /* We had heard some talking */ - ms = ast_tvdiff_ms(ast_tvnow(), start); - ms -= sil; - if (ms < 0) - ms = 0; - if ((ms > min) && ((max < 0) || (ms < max))) { - char ms_str[10]; - ast_log(LOG_DEBUG, "Found qualified token of %d ms\n", ms); - - /* Save detected talk time (in milliseconds) */ - sprintf(ms_str, "%d", ms ); - pbx_builtin_setvar_helper(chan, "TALK_DETECTED", ms_str); - - ast_goto_if_exists(chan, chan->context, "talk", 1); - res = 0; - ast_frfree(fr); - break; - } else - ast_log(LOG_DEBUG, "Found unqualified token of %d ms\n", ms); - notsilent = 0; - } - } else { - if (!notsilent) { - /* Heard some audio, mark the begining of the token */ - start = ast_tvnow(); - ast_log(LOG_DEBUG, "Start of voice token!\n"); - notsilent = 1; - } - } - - } - ast_frfree(fr); - } - ast_sched_runq(chan->sched); - } - ast_stopstream(chan); - } else { - ast_log(LOG_WARNING, "ast_streamfile failed on %s for %s\n", chan->name, (char *)data); - res = 0; - } - } - if (res > -1) { - if (origrformat && ast_set_read_format(chan, origrformat)) { - ast_log(LOG_WARNING, "Failed to restore read format for %s to %s\n", - chan->name, ast_getformatname(origrformat)); - } - } - if (dsp) - ast_dsp_free(dsp); - ast_module_user_remove(u); - return res; -} - -static int unload_module(void) -{ - int res; - - res = ast_unregister_application(app); - - ast_module_user_hangup_all(); - - return res; -} - -static int load_module(void) -{ - return ast_register_application(app, background_detect_exec, synopsis, descrip); -} - -AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Playback with Talk Detection"); |