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Diffstat (limited to 'trunk/apps/app_controlplayback.c')
| -rw-r--r-- | trunk/apps/app_controlplayback.c | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/trunk/apps/app_controlplayback.c b/trunk/apps/app_controlplayback.c new file mode 100644 index 000000000..b6dfd898e --- /dev/null +++ b/trunk/apps/app_controlplayback.c @@ -0,0 +1,168 @@ +/* + * 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 Trivial application to control playback of a sound file + * + * \author Mark Spencer <markster@digium.com> + * + * \ingroup applications + */ + +#include "asterisk.h" + +ASTERISK_FILE_VERSION(__FILE__, "$Revision$") + +#include "asterisk/pbx.h" +#include "asterisk/app.h" +#include "asterisk/module.h" + +static const char *app = "ControlPlayback"; + +static const char *synopsis = "Play a file with fast forward and rewind"; + +static const char *descrip = +" ControlPlayback(file[,skipms[,ff[,rew[,stop[,pause[,restart,options]]]]]]]):\n" +"This application will play back the given filename. By default, the '*' key\n" +"can be used to rewind, and the '#' key can be used to fast-forward.\n" +"Parameters:\n" +" skipms - This is number of milliseconds to skip when rewinding or\n" +" fast-forwarding.\n" +" ff - Fast-forward when this DTMF digit is received.\n" +" rew - Rewind when this DTMF digit is received.\n" +" stop - Stop playback when this DTMF digit is received.\n" +" pause - Pause playback when this DTMF digit is received.\n" +" restart - Restart playback when this DTMF digit is received.\n" +"Options:\n" +" o(#) - Start at # ms from the beginning of the file.\n" +"This application sets the following channel variables upon completion:\n" +" CPLAYBACKSTATUS - This variable contains the status of the attempt as a text\n" +" string, one of: SUCCESS | USERSTOPPED | ERROR\n" +" CPLAYBACKOFFSET - This contains the offset in ms into the file where\n" +" playback was at when it stopped. -1 is end of file.\n" +" CPLAYBACKSTOPKEY - If the playback is stopped by the user this variable contains\n" +" the key that was pressed.\n"; + +enum { + OPT_OFFSET = (1 << 1), +}; + +enum { + OPT_ARG_OFFSET = 0, + /* must stay as the last entry ... */ + OPT_ARG_ARRAY_LEN, +}; + +AST_APP_OPTIONS(cpb_opts, BEGIN_OPTIONS + AST_APP_OPTION_ARG('o', OPT_OFFSET, OPT_ARG_OFFSET), +END_OPTIONS ); + +static int is_on_phonepad(char key) +{ + return key == 35 || key == 42 || (key >= 48 && key <= 57); +} + +static int controlplayback_exec(struct ast_channel *chan, void *data) +{ + int res = 0; + int skipms = 0; + long offsetms = 0; + char offsetbuf[20]; + char stopkeybuf[2]; + char *tmp; + struct ast_flags opts = { 0, }; + char *opt_args[OPT_ARG_ARRAY_LEN]; + AST_DECLARE_APP_ARGS(args, + AST_APP_ARG(filename); + AST_APP_ARG(skip); + AST_APP_ARG(fwd); + AST_APP_ARG(rev); + AST_APP_ARG(stop); + AST_APP_ARG(pause); + AST_APP_ARG(restart); + AST_APP_ARG(options); + ); + + if (ast_strlen_zero(data)) { + ast_log(LOG_WARNING, "ControlPlayback requires an argument (filename)\n"); + return -1; + } + + tmp = ast_strdupa(data); + AST_STANDARD_APP_ARGS(args, tmp); + + if (args.argc < 1) { + ast_log(LOG_WARNING, "ControlPlayback requires an argument (filename)\n"); + return -1; + } + + skipms = args.skip ? (atoi(args.skip) ? atoi(args.skip) : 3000) : 3000; + + if (!args.fwd || !is_on_phonepad(*args.fwd)) + args.fwd = "#"; + if (!args.rev || !is_on_phonepad(*args.rev)) + args.rev = "*"; + if (args.stop && !is_on_phonepad(*args.stop)) + args.stop = NULL; + if (args.pause && !is_on_phonepad(*args.pause)) + args.pause = NULL; + if (args.restart && !is_on_phonepad(*args.restart)) + args.restart = NULL; + + if (args.options) { + ast_app_parse_options(cpb_opts, &opts, opt_args, args.options); + if (ast_test_flag(&opts, OPT_OFFSET)) + offsetms = atol(opt_args[OPT_ARG_OFFSET]); + } + + res = ast_control_streamfile(chan, args.filename, args.fwd, args.rev, args.stop, args.pause, args.restart, skipms, &offsetms); + + /* If we stopped on one of our stop keys, return 0 */ + if (res > 0 && args.stop && strchr(args.stop, res)) { + pbx_builtin_setvar_helper(chan, "CPLAYBACKSTATUS", "USERSTOPPED"); + snprintf(stopkeybuf, sizeof(stopkeybuf), "%c", res); + pbx_builtin_setvar_helper(chan, "CPLAYBACKSTOPKEY", stopkeybuf); + res = 0; + } else { + if (res < 0) { + res = 0; + pbx_builtin_setvar_helper(chan, "CPLAYBACKSTATUS", "ERROR"); + } else + pbx_builtin_setvar_helper(chan, "CPLAYBACKSTATUS", "SUCCESS"); + } + + snprintf(offsetbuf, sizeof(offsetbuf), "%ld", offsetms); + pbx_builtin_setvar_helper(chan, "CPLAYBACKOFFSET", offsetbuf); + + return res; +} + +static int unload_module(void) +{ + int res; + res = ast_unregister_application(app); + return res; +} + +static int load_module(void) +{ + return ast_register_application(app, controlplayback_exec, synopsis, descrip); +} + +AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Control Playback Application"); |