https://origsvn.digium.com/svn/asterisk/branches/1.4 ........ r89587 | file | 2007-11-26 13:20:58 -0400 (Mon, 26 Nov 2007) | 6 lines Close the audio file before sending it to the post processing application. (closes issue #11357) Reported by: reformed Patches: mixmonitor.patch uploaded by reformed (license 330) ........ git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@89589 65c4cc65-6c06-0410-ace0-fbb531ad65f3
428 lines
13 KiB
C
428 lines
13 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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* Copyright (C) 2005 - 2006, Digium, Inc.
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*
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* Mark Spencer <markster@digium.com>
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* Kevin P. Fleming <kpfleming@digium.com>
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*
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* Based on app_muxmon.c provided by
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* Anthony Minessale II <anthmct@yahoo.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 MixMonitor() - Record a call and mix the audio during the recording
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* \ingroup applications
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*
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* \author Mark Spencer <markster@digium.com>
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* \author Kevin P. Fleming <kpfleming@digium.com>
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*
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* \note Based on app_muxmon.c provided by
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* Anthony Minessale II <anthmct@yahoo.com>
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*/
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#include "asterisk.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#include "asterisk/paths.h" /* use ast_config_AST_MONITOR_DIR */
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#include "asterisk/file.h"
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#include "asterisk/audiohook.h"
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#include "asterisk/pbx.h"
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#include "asterisk/module.h"
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#include "asterisk/cli.h"
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#include "asterisk/app.h"
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#include "asterisk/channel.h"
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#define get_volfactor(x) x ? ((x > 0) ? (1 << x) : ((1 << abs(x)) * -1)) : 0
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static const char *app = "MixMonitor";
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static const char *synopsis = "Record a call and mix the audio during the recording";
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static const char *desc = ""
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" MixMonitor(<file>.<ext>[,<options>[,<command>]]):\n"
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"Records the audio on the current channel to the specified file.\n"
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"If the filename is an absolute path, uses that path, otherwise\n"
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"creates the file in the configured monitoring directory from\n"
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"asterisk.conf.\n\n"
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"Valid options:\n"
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" a - Append to the file instead of overwriting it.\n"
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" b - Only save audio to the file while the channel is bridged.\n"
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" Note: Does not include conferences or sounds played to each bridged\n"
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" party.\n"
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" v(<x>) - Adjust the heard volume by a factor of <x> (range -4 to 4)\n"
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" V(<x>) - Adjust the spoken volume by a factor of <x> (range -4 to 4)\n"
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" W(<x>) - Adjust the both heard and spoken volumes by a factor of <x>\n"
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" (range -4 to 4)\n\n"
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"<command> will be executed when the recording is over\n"
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"Any strings matching ^{X} will be unescaped to ${X}.\n"
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"All variables will be evaluated at the time MixMonitor is called.\n"
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"The variable MIXMONITOR_FILENAME will contain the filename used to record.\n"
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"";
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static const char *stop_app = "StopMixMonitor";
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static const char *stop_synopsis = "Stop recording a call through MixMonitor";
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static const char *stop_desc = ""
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" StopMixMonitor():\n"
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"Stops the audio recording that was started with a call to MixMonitor()\n"
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"on the current channel.\n"
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"";
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struct module_symbols *me;
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static const char *mixmonitor_spy_type = "MixMonitor";
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struct mixmonitor {
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struct ast_audiohook audiohook;
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char *filename;
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char *post_process;
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char *name;
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unsigned int flags;
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struct ast_channel *chan;
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};
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enum {
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MUXFLAG_APPEND = (1 << 1),
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MUXFLAG_BRIDGED = (1 << 2),
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MUXFLAG_VOLUME = (1 << 3),
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MUXFLAG_READVOLUME = (1 << 4),
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MUXFLAG_WRITEVOLUME = (1 << 5),
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} mixmonitor_flags;
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enum {
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OPT_ARG_READVOLUME = 0,
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OPT_ARG_WRITEVOLUME,
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OPT_ARG_VOLUME,
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OPT_ARG_ARRAY_SIZE,
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} mixmonitor_args;
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AST_APP_OPTIONS(mixmonitor_opts, {
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AST_APP_OPTION('a', MUXFLAG_APPEND),
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AST_APP_OPTION('b', MUXFLAG_BRIDGED),
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AST_APP_OPTION_ARG('v', MUXFLAG_READVOLUME, OPT_ARG_READVOLUME),
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AST_APP_OPTION_ARG('V', MUXFLAG_WRITEVOLUME, OPT_ARG_WRITEVOLUME),
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AST_APP_OPTION_ARG('W', MUXFLAG_VOLUME, OPT_ARG_VOLUME),
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});
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static int startmon(struct ast_channel *chan, struct ast_audiohook *audiohook)
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{
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struct ast_channel *peer = NULL;
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int res = 0;
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if (!chan)
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return -1;
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ast_audiohook_attach(chan, audiohook);
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if (!res && ast_test_flag(chan, AST_FLAG_NBRIDGE) && (peer = ast_bridged_channel(chan)))
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ast_softhangup(peer, AST_SOFTHANGUP_UNBRIDGE);
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return res;
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}
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#define SAMPLES_PER_FRAME 160
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static void *mixmonitor_thread(void *obj)
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{
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struct mixmonitor *mixmonitor = obj;
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struct ast_filestream *fs = NULL;
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unsigned int oflags;
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char *ext;
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int errflag = 0;
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if (option_verbose > 1)
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ast_verbose(VERBOSE_PREFIX_2 "Begin MixMonitor Recording %s\n", mixmonitor->name);
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ast_audiohook_lock(&mixmonitor->audiohook);
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while (mixmonitor->audiohook.status == AST_AUDIOHOOK_STATUS_RUNNING) {
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struct ast_frame *fr = NULL;
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ast_audiohook_trigger_wait(&mixmonitor->audiohook);
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if (mixmonitor->audiohook.status != AST_AUDIOHOOK_STATUS_RUNNING)
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break;
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if (!(fr = ast_audiohook_read_frame(&mixmonitor->audiohook, SAMPLES_PER_FRAME, AST_AUDIOHOOK_DIRECTION_BOTH, AST_FORMAT_SLINEAR)))
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continue;
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if (!ast_test_flag(mixmonitor, MUXFLAG_BRIDGED) || ast_bridged_channel(mixmonitor->chan)) {
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/* Initialize the file if not already done so */
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if (!fs && !errflag) {
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oflags = O_CREAT | O_WRONLY;
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oflags |= ast_test_flag(mixmonitor, MUXFLAG_APPEND) ? O_APPEND : O_TRUNC;
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if ((ext = strrchr(mixmonitor->filename, '.')))
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*(ext++) = '\0';
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else
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ext = "raw";
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if (!(fs = ast_writefile(mixmonitor->filename, ext, NULL, oflags, 0, 0644))) {
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ast_log(LOG_ERROR, "Cannot open %s.%s\n", mixmonitor->filename, ext);
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errflag = 1;
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}
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}
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/* Write out frame */
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if (fs)
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ast_writestream(fs, fr);
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}
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/* All done! free it. */
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ast_frame_free(fr, 0);
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}
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ast_audiohook_detach(&mixmonitor->audiohook);
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ast_audiohook_unlock(&mixmonitor->audiohook);
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ast_audiohook_destroy(&mixmonitor->audiohook);
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if (option_verbose > 1)
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ast_verbose(VERBOSE_PREFIX_2 "End MixMonitor Recording %s\n", mixmonitor->name);
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if (fs)
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ast_closestream(fs);
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if (mixmonitor->post_process) {
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if (option_verbose > 2)
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ast_verbose(VERBOSE_PREFIX_2 "Executing [%s]\n", mixmonitor->post_process);
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ast_safe_system(mixmonitor->post_process);
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}
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ast_free(mixmonitor);
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return NULL;
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}
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static void launch_monitor_thread(struct ast_channel *chan, const char *filename, unsigned int flags,
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int readvol, int writevol, const char *post_process)
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{
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pthread_t thread;
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struct mixmonitor *mixmonitor;
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char postprocess2[1024] = "";
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size_t len;
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len = sizeof(*mixmonitor) + strlen(chan->name) + strlen(filename) + 2;
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postprocess2[0] = 0;
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/* If a post process system command is given attach it to the structure */
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if (!ast_strlen_zero(post_process)) {
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char *p1, *p2;
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p1 = ast_strdupa(post_process);
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for (p2 = p1; *p2 ; p2++) {
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if (*p2 == '^' && *(p2+1) == '{') {
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*p2 = '$';
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}
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}
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pbx_substitute_variables_helper(chan, p1, postprocess2, sizeof(postprocess2) - 1);
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if (!ast_strlen_zero(postprocess2))
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len += strlen(postprocess2) + 1;
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}
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/* Pre-allocate mixmonitor structure and spy */
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if (!(mixmonitor = ast_calloc(1, len))) {
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return;
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}
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/* Copy over flags and channel name */
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mixmonitor->flags = flags;
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mixmonitor->chan = chan;
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mixmonitor->name = (char *) mixmonitor + sizeof(*mixmonitor);
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strcpy(mixmonitor->name, chan->name);
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if (!ast_strlen_zero(postprocess2)) {
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mixmonitor->post_process = mixmonitor->name + strlen(mixmonitor->name) + strlen(filename) + 2;
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strcpy(mixmonitor->post_process, postprocess2);
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}
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mixmonitor->filename = (char *) mixmonitor + sizeof(*mixmonitor) + strlen(chan->name) + 1;
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strcpy(mixmonitor->filename, filename);
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/* Setup the actual spy before creating our thread */
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if (ast_audiohook_init(&mixmonitor->audiohook, AST_AUDIOHOOK_TYPE_SPY, mixmonitor_spy_type)) {
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free(mixmonitor);
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return;
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}
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ast_set_flag(&mixmonitor->audiohook, AST_AUDIOHOOK_TRIGGER_WRITE);
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if (readvol)
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mixmonitor->audiohook.options.read_volume = readvol;
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if (writevol)
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mixmonitor->audiohook.options.write_volume = writevol;
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if (startmon(chan, &mixmonitor->audiohook)) {
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ast_log(LOG_WARNING, "Unable to add '%s' spy to channel '%s'\n",
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mixmonitor_spy_type, chan->name);
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ast_audiohook_destroy(&mixmonitor->audiohook);
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ast_free(mixmonitor);
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return;
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}
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ast_pthread_create_detached_background(&thread, NULL, mixmonitor_thread, mixmonitor);
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}
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static int mixmonitor_exec(struct ast_channel *chan, void *data)
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{
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int x, readvol = 0, writevol = 0;
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struct ast_flags flags = {0};
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char *parse, *tmp, *slash;
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AST_DECLARE_APP_ARGS(args,
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AST_APP_ARG(filename);
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AST_APP_ARG(options);
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AST_APP_ARG(post_process);
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);
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if (ast_strlen_zero(data)) {
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ast_log(LOG_WARNING, "MixMonitor requires an argument (filename)\n");
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return -1;
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}
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parse = ast_strdupa(data);
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AST_STANDARD_APP_ARGS(args, parse);
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if (ast_strlen_zero(args.filename)) {
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ast_log(LOG_WARNING, "MixMonitor requires an argument (filename)\n");
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return -1;
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}
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if (args.options) {
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char *opts[OPT_ARG_ARRAY_SIZE] = { NULL, };
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ast_app_parse_options(mixmonitor_opts, &flags, opts, args.options);
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if (ast_test_flag(&flags, MUXFLAG_READVOLUME)) {
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if (ast_strlen_zero(opts[OPT_ARG_READVOLUME])) {
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ast_log(LOG_WARNING, "No volume level was provided for the heard volume ('v') option.\n");
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} else if ((sscanf(opts[OPT_ARG_READVOLUME], "%d", &x) != 1) || (x < -4) || (x > 4)) {
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ast_log(LOG_NOTICE, "Heard volume must be a number between -4 and 4, not '%s'\n", opts[OPT_ARG_READVOLUME]);
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} else {
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readvol = get_volfactor(x);
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}
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}
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if (ast_test_flag(&flags, MUXFLAG_WRITEVOLUME)) {
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if (ast_strlen_zero(opts[OPT_ARG_WRITEVOLUME])) {
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ast_log(LOG_WARNING, "No volume level was provided for the spoken volume ('V') option.\n");
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} else if ((sscanf(opts[OPT_ARG_WRITEVOLUME], "%d", &x) != 1) || (x < -4) || (x > 4)) {
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ast_log(LOG_NOTICE, "Spoken volume must be a number between -4 and 4, not '%s'\n", opts[OPT_ARG_WRITEVOLUME]);
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} else {
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writevol = get_volfactor(x);
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}
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}
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if (ast_test_flag(&flags, MUXFLAG_VOLUME)) {
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if (ast_strlen_zero(opts[OPT_ARG_VOLUME])) {
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ast_log(LOG_WARNING, "No volume level was provided for the combined volume ('W') option.\n");
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} else if ((sscanf(opts[OPT_ARG_VOLUME], "%d", &x) != 1) || (x < -4) || (x > 4)) {
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ast_log(LOG_NOTICE, "Combined volume must be a number between -4 and 4, not '%s'\n", opts[OPT_ARG_VOLUME]);
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} else {
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readvol = writevol = get_volfactor(x);
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}
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}
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}
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/* if not provided an absolute path, use the system-configured monitoring directory */
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if (args.filename[0] != '/') {
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char *build;
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build = alloca(strlen(ast_config_AST_MONITOR_DIR) + strlen(args.filename) + 3);
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sprintf(build, "%s/%s", ast_config_AST_MONITOR_DIR, args.filename);
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args.filename = build;
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}
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tmp = ast_strdupa(args.filename);
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if ((slash = strrchr(tmp, '/')))
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*slash = '\0';
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ast_mkdir(tmp, 0777);
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pbx_builtin_setvar_helper(chan, "MIXMONITOR_FILENAME", args.filename);
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launch_monitor_thread(chan, args.filename, flags.flags, readvol, writevol, args.post_process);
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return 0;
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}
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static int stop_mixmonitor_exec(struct ast_channel *chan, void *data)
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{
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ast_audiohook_detach_source(chan, mixmonitor_spy_type);
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return 0;
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}
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static char *handle_cli_mixmonitor(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
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{
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struct ast_channel *chan;
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switch (cmd) {
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case CLI_INIT:
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e->command = "mixmonitor [start|stop]";
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e->usage =
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"Usage: mixmonitor <start|stop> <chan_name> [args]\n"
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" The optional arguments are passed to the MixMonitor\n"
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" application when the 'start' command is used.\n";
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return NULL;
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case CLI_GENERATE:
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return ast_complete_channels(a->line, a->word, a->pos, a->n, 2);
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}
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if (a->argc < 3)
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return CLI_SHOWUSAGE;
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if (!(chan = ast_get_channel_by_name_prefix_locked(a->argv[2], strlen(a->argv[2])))) {
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ast_cli(a->fd, "No channel matching '%s' found.\n", a->argv[2]);
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/* Technically this is a failure, but we don't want 2 errors printing out */
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return CLI_SUCCESS;
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}
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if (!strcasecmp(a->argv[1], "start")) {
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mixmonitor_exec(chan, a->argv[3]);
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ast_channel_unlock(chan);
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} else {
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ast_channel_unlock(chan);
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ast_audiohook_detach_source(chan, mixmonitor_spy_type);
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}
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return CLI_SUCCESS;
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}
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static struct ast_cli_entry cli_mixmonitor[] = {
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AST_CLI_DEFINE(handle_cli_mixmonitor, "Execute a MixMonitor command")
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};
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static int unload_module(void)
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{
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int res;
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ast_cli_unregister_multiple(cli_mixmonitor, sizeof(cli_mixmonitor) / sizeof(struct ast_cli_entry));
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res = ast_unregister_application(stop_app);
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res |= ast_unregister_application(app);
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return res;
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}
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static int load_module(void)
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{
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int res;
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ast_cli_register_multiple(cli_mixmonitor, sizeof(cli_mixmonitor) / sizeof(struct ast_cli_entry));
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res = ast_register_application(app, mixmonitor_exec, synopsis, desc);
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res |= ast_register_application(stop_app, stop_mixmonitor_exec, stop_synopsis, stop_desc);
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return res;
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}
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AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Mixed Audio Monitoring Application");
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