Version 0.1.0 from FTP
authorMark Spencer <markster@digium.com>
Mon, 15 Nov 1999 05:04:48 +0000 (05:04 +0000)
committerMark Spencer <markster@digium.com>
Mon, 15 Nov 1999 05:04:48 +0000 (05:04 +0000)
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@22 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_mp3.c [new file with mode: 0755]

diff --git a/apps/app_mp3.c b/apps/app_mp3.c
new file mode 100755 (executable)
index 0000000..eb1a5d6
--- /dev/null
@@ -0,0 +1,193 @@
+/*
+ * Asterisk -- A telephony toolkit for Linux.
+ *
+ * Silly application to play an MP3 file -- uses mpg123
+ * 
+ * Copyright (C) 1999, Adtran Inc. and Linux Support Services, LLC
+ *
+ * Mark Spencer <markster@linux-support.net>
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License
+ */
+#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 <string.h>
+#include <stdio.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <sys/time.h>
+
+#define MPG_123 "/usr/bin/mpg123"
+
+static char *tdesc = "Silly MP3 Application";
+
+static char *app = "MP3Player";
+
+STANDARD_LOCAL_USER;
+
+LOCAL_USER_DECL;
+
+static int mp3play(char *filename, int fd)
+{
+       int res;
+       res = fork();
+       if (res < 0) 
+               ast_log(LOG_WARNING, "Fork failed\n");
+       if (res)
+               return res;
+       dup2(fd, STDOUT_FILENO);
+       /* Execute mpg123, but buffer if it's a net connection */
+       if (strncmp(filename, "http://", 7)) 
+           execl(MPG_123, MPG_123, "-q", "-s", "-b", "1024", "--mono", "-r", "8000", filename, NULL);
+       else
+           execl(MPG_123, MPG_123, "-q", "-s", "--mono", "-r", "8000", filename, NULL);
+       ast_log(LOG_WARNING, "Execute of mpg123 failed\n");
+       return -1;
+}
+
+static int mp3_exec(struct ast_channel *chan, void *data)
+{
+       int res=0;
+       struct localuser *u;
+       struct ast_channel *trans;
+       int fds[2];
+       int rfds[2];
+       int ms = -1;
+       int pid;
+       int us;
+       struct timeval tv;
+       struct timeval last;
+       struct ast_frame *f;
+       struct myframe {
+               struct ast_frame f;
+               char offset[AST_FRIENDLY_OFFSET];
+               char frdata[160];
+       } myf;
+       last.tv_usec = 0;
+       last.tv_sec = 0;
+       if (!data) {
+               ast_log(LOG_WARNING, "MP3 Playback requires an argument (filename)\n");
+               return -1;
+       }
+       if (pipe(fds)) {
+               ast_log(LOG_WARNING, "Unable to create pipe\n");
+               return -1;
+       }
+       LOCAL_USER_ADD(u);
+       ast_stopstream(chan);
+       if (chan->format & AST_FORMAT_SLINEAR)
+               trans = chan;
+       else
+               trans = ast_translator_create(chan, AST_FORMAT_SLINEAR, AST_DIRECTION_OUT);
+       if (trans) {
+               res = mp3play((char *)data, fds[1]);
+               if (res >= 0) {
+                       pid = res;
+                       /* Order is important -- there's almost always going to be mp3...  we want to prioritize the
+                          user */
+                       rfds[0] = trans->fd;
+                       rfds[1] = fds[0];
+                       for (;;) {
+                               CHECK_BLOCKING(trans);
+                               res = ast_waitfor_n_fd(rfds, 2, &ms);
+                               trans->blocking = 0;
+                               if (res < 1) {
+                                       ast_log(LOG_DEBUG, "Hangup detected\n");
+                                       res = -1;
+                                       break;
+                               } else if (res == trans->fd) {
+                                       f = ast_read(trans);
+                                       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);
+                               } else if (res == fds[0]) {
+                                       gettimeofday(&tv, NULL);
+                                       if (last.tv_sec || last.tv_usec) {
+                                               /* We should wait at least a frame length */
+                                               us = sizeof(myf.frdata) / 16 * 1000;
+                                               /* Subtract 1,000,000 us for each second late we've passed */
+                                               us -= (tv.tv_sec - last.tv_sec) * 1000000;
+                                               /* And one for each us late we've passed */
+                                               us -= (tv.tv_usec - last.tv_usec);
+                                               /* Sleep that long if needed */
+                                               if (us > 0)
+                                                       usleep(us);
+                                       }
+                                       last = tv;
+                                       res = read(fds[0], myf.frdata, sizeof(myf.frdata));
+                                       if (res > 0) {
+                                               myf.f.frametype = AST_FRAME_VOICE;
+                                               myf.f.subclass = AST_FORMAT_SLINEAR;
+                                               myf.f.datalen = res;
+                                               myf.f.timelen = res / 16;
+                                               myf.f.mallocd = 0;
+                                               myf.f.offset = AST_FRIENDLY_OFFSET;
+                                               myf.f.src = __PRETTY_FUNCTION__;
+                                               myf.f.data = myf.frdata;
+                                               if (ast_write(trans, &myf.f) < 0) {
+                                                       res = -1;
+                                                       break;
+                                               }
+                                       } else {
+                                               ast_log(LOG_DEBUG, "No more mp3\n");
+                                               res = 0;
+                                       }
+                               } else {
+                                       ast_log(LOG_DEBUG, "HuhHHH?\n");
+                                       res = -1;
+                                       break;
+                               }
+                       }
+                       kill(pid, SIGTERM);
+               }
+               if (trans != chan) 
+                       ast_translator_destroy(trans);
+       } else 
+               ast_log(LOG_WARNING, "No translator channel available\n");
+       close(fds[0]);
+       close(fds[1]);
+       LOCAL_USER_REMOVE(u);
+       return res;
+}
+
+int unload_module(void)
+{
+       STANDARD_HANGUP_LOCALUSERS;
+       return ast_unregister_application(app);
+}
+
+int load_module(void)
+{
+       return ast_register_application(app, mp3_exec);
+}
+
+char *description(void)
+{
+       return tdesc;
+}
+
+int usecount(void)
+{
+       int res;
+       STANDARD_USECOUNT(res);
+       return res;
+}