/* * Asterisk -- An open source telephony toolkit. * * Copyright (C) 1999 - 2005, Digium, Inc. * * Mark Spencer * * 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 Silly application to play an MP3 file -- uses mpg123 * * \author Mark Spencer * * \ingroup applications */ #include #include #include #include #include #include #include #include "asterisk.h" ASTERISK_FILE_VERSION(__FILE__, "Revision: 24053 ") #include "asterisk/lock.h" #include "asterisk/file.h" #include "asterisk/logger.h" #include "asterisk/channel.h" #include "asterisk/frame.h" #include "asterisk/pbx.h" #include "asterisk/module.h" #include "asterisk/translate.h" #include "asterisk/options.h" #define LOCAL_MPG_123 "/usr/local/bin/mpg123" #define MPG_123 "/usr/bin/mpg123" static char *tdesc = "Silly MP3 Application"; static char *app = "MP3Player"; static char *synopsis = "Play an MP3 file or stream"; static char *descrip = " MP3Player(location) Executes mpg123 to play the given location,\n" "which typically would be a filename or a URL. User can exit by pressing\n" "any key on the dialpad, or by hanging up."; LOCAL_USER_DECL; static int mp3play(char *filename, int fd) { int res; int x; res = fork(); if (res < 0) ast_log(LOG_WARNING, "Fork failed\n"); if (res) return res; if (ast_opt_high_priority) ast_set_priority(0); dup2(fd, STDOUT_FILENO); for (x=0;x<256;x++) { if (x != STDOUT_FILENO) close(x); } /* Execute mpg123, but buffer if it's a net connection */ if (!strncasecmp(filename, "http://", 7)) { /* Most commonly installed in /usr/local/bin */ execl(LOCAL_MPG_123, "mpg123", "-q", "-s", "-b", "1024", "-f", "8192", "--mono", "-r", "8000", filename, (char *)NULL); /* But many places has it in /usr/bin */ execl(MPG_123, "mpg123", "-q", "-s", "-b", "1024","-f", "8192", "--mono", "-r", "8000", filename, (char *)NULL); /* As a last-ditch effort, try to use PATH */ execlp("mpg123", "mpg123", "-q", "-s", "-b", "1024", "-f", "8192", "--mono", "-r", "8000", filename, (char *)NULL); } else { /* Most commonly installed in /usr/local/bin */ execl(MPG_123, "mpg123", "-q", "-s", "-f", "8192", "--mono", "-r", "8000", filename, (char *)NULL); /* But many places has it in /usr/bin */ execl(LOCAL_MPG_123, "mpg123", "-q", "-s", "-f", "8192", "--mono", "-r", "8000", filename, (char *)NULL); /* As a last-ditch effort, try to use PATH */ execlp("mpg123", "mpg123", "-q", "-s", "-f", "8192", "--mono", "-r", "8000", filename, (char *)NULL); } ast_log(LOG_WARNING, "Execute of mpg123 failed\n"); return -1; } static int timed_read(int fd, void *data, int datalen, int timeout) { int res; struct pollfd fds[1]; fds[0].fd = fd; fds[0].events = POLLIN; res = poll(fds, 1, timeout); if (res < 1) { ast_log(LOG_NOTICE, "Poll timed out/errored out with %d\n", res); return -1; } return read(fd, data, datalen); } static int mp3_exec(struct ast_channel *chan, void *data) { int res=0; struct localuser *u; int fds[2]; int ms = -1; int pid = -1; int owriteformat; int timeout = 2000; struct timeval next; struct ast_frame *f; struct myframe { struct ast_frame f; char offset[AST_FRIENDLY_OFFSET]; short frdata[160]; } myf; if (ast_strlen_zero(data)) { ast_log(LOG_WARNING, "MP3 Playback requires an argument (filename)\n"); return -1; } LOCAL_USER_ADD(u); if (pipe(fds)) { ast_log(LOG_WARNING, "Unable to create pipe\n"); LOCAL_USER_REMOVE(u); return -1; } ast_stopstream(chan); owriteformat = chan->writeformat; res = ast_set_write_format(chan, AST_FORMAT_SLINEAR); if (res < 0) { ast_log(LOG_WARNING, "Unable to set write format to signed linear\n"); LOCAL_USER_REMOVE(u); return -1; } res = mp3play((char *)data, fds[1]); if (!strncasecmp((char *)data, "http://", 7)) { timeout = 10000; } /* Wait 1000 ms first */ next = ast_tvnow(); next.tv_sec += 1; if (res >= 0) { pid = res; /* Order is important -- there's almost always going to be mp3... we want to prioritize the user */ for (;;) { ms = ast_tvdiff_ms(next, ast_tvnow()); if (ms <= 0) { res = timed_read(fds[0], myf.frdata, sizeof(myf.frdata), timeout); if (res > 0) { myf.f.frametype = AST_FRAME_VOICE; myf.f.subclass = AST_FORMAT_SLINEAR; myf.f.datalen = res; myf.f.samples = res / 2; myf.f.mallocd = 0; myf.f.offset = AST_FRIENDLY_OFFSET; myf.f.src = __PRETTY_FUNCTION__; myf.f.delivery.tv_sec = 0; myf.f.delivery.tv_usec = 0; myf.f.data = myf.frdata; if (ast_write(chan, &myf.f) < 0) { res = -1; break; } } else { ast_log(LOG_DEBUG, "No more mp3\n"); res = 0; break; } next = ast_tvadd(next, ast_samp2tv(myf.f.samples, 8000)); } else { ms = ast_waitfor(chan, ms); if (ms < 0) { ast_log(LOG_DEBUG, "Hangup detected\n"); res = -1; break; } if (ms) { f = ast_read(chan); if (!f) { ast_log(LOG_DEBUG, "Null frame == hangup() detected\n"); res = -1; break; } if (f->frametype == AST_FRAME_DTMF) { ast_log(LOG_DEBUG, "User pressed a key\n"); ast_frfree(f); res = 0; break; } ast_frfree(f); } } } } close(fds[0]); close(fds[1]); if (pid > -1) kill(pid, SIGKILL); if (!res && owriteformat) ast_set_write_format(chan, owriteformat); LOCAL_USER_REMOVE(u); return res; } static int unload_module(void *mod) { int res; res = ast_unregister_application(app); STANDARD_HANGUP_LOCALUSERS; return res; } static int load_module(void *mod) { return ast_register_application(app, mp3_exec, synopsis, descrip); } static const char *description(void) { return tdesc; } static const char *key(void) { return ASTERISK_GPL_KEY; } STD_MOD1;