359 lines
8.2 KiB
C
359 lines
8.2 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2005, Anthony Minessale II
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*
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* Anthony Minessale II <anthmct@yahoo.com>
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*
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* Donated by Sangoma Technologies <http://www.samgoma.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 Virtual Dictation Machine Application For Asterisk
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*
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* \ingroup applications
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*/
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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 <unistd.h>
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#include <sys/stat.h> /* for mkdir */
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#include "asterisk.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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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/say.h"
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#include "asterisk/lock.h"
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#include "asterisk/app.h"
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static char *tdesc = "Virtual Dictation Machine";
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static char *app = "Dictate";
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static char *synopsis = "Virtual Dictation Machine";
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static char *desc = " Dictate([<base_dir>])\n"
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"Start dictation machine using optional base dir for files.\n";
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STANDARD_LOCAL_USER;
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LOCAL_USER_DECL;
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typedef enum {
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DFLAG_RECORD = (1 << 0),
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DFLAG_PLAY = (1 << 1),
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DFLAG_TRUNC = (1 << 2),
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DFLAG_PAUSE = (1 << 3),
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} dflags;
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typedef enum {
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DMODE_INIT,
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DMODE_RECORD,
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DMODE_PLAY
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} dmodes;
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#define ast_toggle_flag(it,flag) if(ast_test_flag(it, flag)) ast_clear_flag(it, flag); else ast_set_flag(it, flag)
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static int play_and_wait(struct ast_channel *chan, char *file, char *digits)
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{
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int res = -1;
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if (!ast_streamfile(chan, file, chan->language)) {
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res = ast_waitstream(chan, digits);
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}
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return res;
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}
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static int dictate_exec(struct ast_channel *chan, void *data)
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{
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char *mydata, *argv[2], *path = NULL, filein[256];
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char dftbase[256];
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char *base;
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struct ast_flags flags = {0};
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struct ast_filestream *fs;
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struct ast_frame *f = NULL;
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struct localuser *u;
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int ffactor = 320 * 80,
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res = 0,
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argc = 0,
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done = 0,
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oldr = 0,
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lastop = 0,
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samples = 0,
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speed = 1,
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digit = 0,
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len = 0,
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maxlen = 0,
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mode = 0;
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LOCAL_USER_ADD(u);
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snprintf(dftbase, sizeof(dftbase), "%s/dictate", ast_config_AST_SPOOL_DIR);
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if (!ast_strlen_zero(data) && (mydata = ast_strdupa(data))) {
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argc = ast_app_separate_args(mydata, '|', argv, sizeof(argv) / sizeof(argv[0]));
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}
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if (argc) {
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base = argv[0];
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} else {
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base = dftbase;
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}
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oldr = chan->readformat;
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if ((res = ast_set_read_format(chan, AST_FORMAT_SLINEAR)) < 0) {
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ast_log(LOG_WARNING, "Unable to set to linear mode.\n");
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LOCAL_USER_REMOVE(u);
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return -1;
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}
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ast_answer(chan);
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ast_safe_sleep(chan, 200);
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for(res = 0; !res;) {
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if (ast_app_getdata(chan, "dictate/enter_filename", filein, sizeof(filein), 0) ||
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ast_strlen_zero(filein)) {
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res = -1;
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break;
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}
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mkdir(base, 0755);
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len = strlen(base) + strlen(filein) + 2;
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if (!path || len > maxlen) {
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path = alloca(len);
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memset(path, 0, len);
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maxlen = len;
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} else {
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memset(path, 0, maxlen);
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}
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snprintf(path, len, "%s/%s", base, filein);
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fs = ast_writefile(path, "raw", NULL, O_CREAT|O_APPEND, 0, 0700);
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mode = DMODE_PLAY;
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memset(&flags, 0, sizeof(flags));
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ast_set_flag(&flags, DFLAG_PAUSE);
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digit = play_and_wait(chan, "dictate/forhelp", AST_DIGIT_ANY);
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done = 0;
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speed = 1;
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res = 0;
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lastop = 0;
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samples = 0;
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while (!done && ((res = ast_waitfor(chan, -1)) > -1) && fs && (f = ast_read(chan))) {
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if (digit) {
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struct ast_frame fr = {AST_FRAME_DTMF, digit};
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ast_queue_frame(chan, &fr);
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digit = 0;
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}
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if ((f->frametype == AST_FRAME_DTMF)) {
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int got = 1;
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switch(mode) {
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case DMODE_PLAY:
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switch(f->subclass) {
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case '1':
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ast_set_flag(&flags, DFLAG_PAUSE);
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mode = DMODE_RECORD;
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break;
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case '2':
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speed++;
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if (speed > 4) {
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speed = 1;
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}
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res = ast_say_number(chan, speed, AST_DIGIT_ANY, chan->language, (char *) NULL);
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break;
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case '7':
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samples -= ffactor;
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if(samples < 0) {
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samples = 0;
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}
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ast_seekstream(fs, samples, SEEK_SET);
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break;
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case '8':
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samples += ffactor;
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ast_seekstream(fs, samples, SEEK_SET);
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break;
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default:
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got = 0;
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}
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break;
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case DMODE_RECORD:
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switch(f->subclass) {
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case '1':
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ast_set_flag(&flags, DFLAG_PAUSE);
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mode = DMODE_PLAY;
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break;
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case '8':
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ast_toggle_flag(&flags, DFLAG_TRUNC);
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lastop = 0;
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break;
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default:
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got = 0;
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}
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break;
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default:
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got = 0;
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}
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if (!got) {
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switch(f->subclass) {
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case '#':
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done = 1;
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continue;
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break;
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case '*':
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ast_toggle_flag(&flags, DFLAG_PAUSE);
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if (ast_test_flag(&flags, DFLAG_PAUSE)) {
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digit = play_and_wait(chan, "dictate/pause", AST_DIGIT_ANY);
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} else {
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digit = play_and_wait(chan, mode == DMODE_PLAY ? "dictate/playback" : "dictate/record", AST_DIGIT_ANY);
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}
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break;
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case '0':
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ast_set_flag(&flags, DFLAG_PAUSE);
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digit = play_and_wait(chan, "dictate/paused", AST_DIGIT_ANY);
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switch(mode) {
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case DMODE_PLAY:
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digit = play_and_wait(chan, "dictate/play_help", AST_DIGIT_ANY);
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break;
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case DMODE_RECORD:
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digit = play_and_wait(chan, "dictate/record_help", AST_DIGIT_ANY);
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break;
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}
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if (digit == 0) {
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digit = play_and_wait(chan, "dictate/both_help", AST_DIGIT_ANY);
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} else if (digit < 0) {
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done = 1;
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break;
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}
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break;
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}
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}
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} else if (f->frametype == AST_FRAME_VOICE) {
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switch(mode) {
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struct ast_frame *fr;
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int x;
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case DMODE_PLAY:
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if (lastop != DMODE_PLAY) {
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if (ast_test_flag(&flags, DFLAG_PAUSE)) {
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digit = play_and_wait(chan, "dictate/playback_mode", AST_DIGIT_ANY);
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if (digit == 0) {
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digit = play_and_wait(chan, "dictate/paused", AST_DIGIT_ANY);
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} else if (digit < 0) {
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break;
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}
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}
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if (lastop != DFLAG_PLAY) {
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lastop = DFLAG_PLAY;
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ast_closestream(fs);
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fs = ast_openstream(chan, path, chan->language);
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ast_seekstream(fs, samples, SEEK_SET);
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chan->stream = NULL;
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}
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lastop = DMODE_PLAY;
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}
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if (!ast_test_flag(&flags, DFLAG_PAUSE)) {
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for (x = 0; x < speed; x++) {
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if ((fr = ast_readframe(fs))) {
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ast_write(chan, fr);
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samples += fr->samples;
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ast_frfree(fr);
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fr = NULL;
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} else {
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samples = 0;
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ast_seekstream(fs, 0, SEEK_SET);
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}
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}
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}
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break;
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case DMODE_RECORD:
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if (lastop != DMODE_RECORD) {
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int oflags = O_CREAT | O_WRONLY;
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if (ast_test_flag(&flags, DFLAG_PAUSE)) {
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digit = play_and_wait(chan, "dictate/record_mode", AST_DIGIT_ANY);
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if (digit == 0) {
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digit = play_and_wait(chan, "dictate/paused", AST_DIGIT_ANY);
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} else if (digit < 0) {
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break;
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}
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}
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lastop = DMODE_RECORD;
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ast_closestream(fs);
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if ( ast_test_flag(&flags, DFLAG_TRUNC)) {
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oflags |= O_TRUNC;
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digit = play_and_wait(chan, "dictate/truncating_audio", AST_DIGIT_ANY);
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} else {
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oflags |= O_APPEND;
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}
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fs = ast_writefile(path, "raw", NULL, oflags, 0, 0700);
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if (ast_test_flag(&flags, DFLAG_TRUNC)) {
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ast_seekstream(fs, 0, SEEK_SET);
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ast_clear_flag(&flags, DFLAG_TRUNC);
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} else {
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ast_seekstream(fs, 0, SEEK_END);
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}
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}
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if (!ast_test_flag(&flags, DFLAG_PAUSE)) {
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res = ast_writestream(fs, f);
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}
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break;
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}
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}
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ast_frfree(f);
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}
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}
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if (oldr) {
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ast_set_read_format(chan, oldr);
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}
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LOCAL_USER_REMOVE(u);
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return res;
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}
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int unload_module(void)
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{
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int res;
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res = ast_unregister_application(app);
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STANDARD_HANGUP_LOCALUSERS;
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return res;
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}
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int load_module(void)
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{
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return ast_register_application(app, dictate_exec, synopsis, desc);
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}
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char *description(void)
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{
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return tdesc;
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}
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int usecount(void)
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{
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int res;
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STANDARD_USECOUNT(res);
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return res;
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}
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char *key()
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{
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return ASTERISK_GPL_KEY;
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}
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