/*! \brief Unpause monitoring of channel */
int AST_OPTIONAL_API_NAME(ast_monitor_unpause)(struct ast_channel *chan)
{
return ast_monitor_set_state(chan, AST_MONITOR_RUNNING);
}
/*! \brief Start monitoring a channel
* \param chan ast_channel struct to record
* \param format_spec file format to use for recording
* \param fname_base filename base to record to
* \param need_lock whether to lock the channel mutex
* \param stream_action whether to record the input and/or output streams. X_REC_IN | X_REC_OUT is most often used
* Creates the file to record, if no format is specified it assumes WAV
* It also sets channel variable __MONITORED=yes
* \retval 0 on success
* \retval -1 on failure
*/
int AST_OPTIONAL_API_NAME(ast_monitor_start)(struct ast_channel *chan, const char *format_spec,
const char *fname_base, int need_lock, int stream_action)
{
int res = 0;
LOCK_IF_NEEDED(chan, need_lock);
if (!(ast_channel_monitor(chan))) {
struct ast_channel_monitor *monitor;
char *channel_name, *p;
/* Create monitoring directory if needed */
ast_mkdir(ast_config_AST_MONITOR_DIR, 0777);
if (!(monitor = ast_calloc(1, sizeof(*monitor)))) {
UNLOCK_IF_NEEDED(chan, need_lock);
return -1;
}
/* Determine file names */
if (!ast_strlen_zero(fname_base)) {
int directory = strchr(fname_base, '/') ? 1 : 0;
const char *absolute = *fname_base == '/' ? "" : ast_config_AST_MONITOR_DIR;
const char *absolute_suffix = *fname_base == '/' ? "" : "/";
snprintf(monitor->read_filename, FILENAME_MAX, "%s%s%s-in",
absolute, absolute_suffix, fname_base);
snprintf(monitor->write_filename, FILENAME_MAX, "%s%s%s-out",
absolute, absolute_suffix, fname_base);
snprintf(monitor->filename_base, FILENAME_MAX, "%s%s%s",
absolute, absolute_suffix, fname_base);
/* try creating the directory just in case it doesn't exist */
if (directory) {
char *name = ast_strdupa(monitor->filename_base);
ast_mkdir(dirname(name), 0777);
}
} else {
ast_mutex_lock(&monitorlock);
snprintf(monitor->read_filename, FILENAME_MAX, "%s/audio-in-%lu",
ast_config_AST_MONITOR_DIR, seq);
snprintf(monitor->write_filename, FILENAME_MAX, "%s/audio-out-%lu",
ast_config_AST_MONITOR_DIR, seq);
seq++;
ast_mutex_unlock(&monitorlock);
/* Replace all '/' chars from the channel name with '-' chars. */
channel_name = ast_strdupa(ast_channel_name(chan));
for (p = channel_name; (p = strchr(p, '/')); ) {
*p = '-';
}
snprintf(monitor->filename_base, FILENAME_MAX, "%s/%d-%s",
ast_config_AST_MONITOR_DIR, (int)time(NULL), channel_name);
monitor->filename_changed = 1;
}
monitor->stop = ast_monitor_stop;
/* Determine file format */
if (!ast_strlen_zero(format_spec)) {
monitor->format = ast_strdup(format_spec);
} else {
monitor->format = ast_strdup("wav");
}
/* open files */
if (stream_action & X_REC_IN) {
if (ast_fileexists(monitor->read_filename, NULL, NULL) > 0)
ast_filedelete(monitor->read_filename, NULL);
if (!(monitor->read_stream = ast_writefile(monitor->read_filename,
monitor->format, NULL,
O_CREAT|O_TRUNC|O_WRONLY, 0, AST_FILE_MODE))) {
ast_log(LOG_WARNING, "Could not create file %s\n",
monitor->read_filename);
ast_free(monitor);
UNLOCK_IF_NEEDED(chan, need_lock);
return -1;
}
} else
monitor->read_stream = NULL;
if (stream_action & X_REC_OUT) {
if (ast_fileexists(monitor->write_filename, NULL, NULL) > 0) {
ast_filedelete(monitor->write_filename, NULL);
}
if (!(monitor->write_stream = ast_writefile(monitor->write_filename,
monitor->format, NULL,
O_CREAT|O_TRUNC|O_WRONLY, 0, AST_FILE_MODE))) {
ast_log(LOG_WARNING, "Could not create file %s\n",
monitor->write_filename);
if (monitor->read_stream) {
ast_closestream(monitor->read_stream);
}
ast_free(monitor);
UNLOCK_IF_NEEDED(chan, need_lock);
return -1;
}
} else
monitor->write_stream = NULL;
ast_channel_monitor_set(chan, monitor);
ast_monitor_set_state(chan, AST_MONITOR_RUNNING);
/* so we know this call has been monitored in case we need to bill for it or something */
pbx_builtin_setvar_helper(chan, "__MONITORED","true");
ast_manager_event(chan, EVENT_FLAG_CALL, "MonitorStart",
"Channel: %s\r\n"
"Uniqueid: %s\r\n",
ast_channel_name(chan),
ast_channel_uniqueid(chan));
} else {
ast_debug(1,"Cannot start monitoring %s, already monitored\n", ast_channel_name(chan));
res = -1;
}
UNLOCK_IF_NEEDED(chan, need_lock);
return res;
}
/* Pause monitoring of a channel */
int ast_monitor_pause(struct ast_channel *chan)
{
return ast_monitor_set_state(chan, AST_MONITOR_PAUSED);
}
/* Unpause monitoring of a channel */
int ast_monitor_unpause(struct ast_channel *chan)
{
return ast_monitor_set_state(chan, AST_MONITOR_RUNNING);
}
/* Start monitoring a channel */
int ast_monitor_start( struct ast_channel *chan, const char *format_spec,
const char *fname_base, int need_lock)
{
int res = 0;
char tmp[256];
LOCK_IF_NEEDED(chan, need_lock);
if (!(chan->monitor)) {
struct ast_channel_monitor *monitor;
char *channel_name, *p;
/* Create monitoring directory if needed */
if (mkdir(ast_config_AST_MONITOR_DIR, 0770) < 0) {
if (errno != EEXIST) {
ast_log(LOG_WARNING, "Unable to create audio monitor directory: %s\n",
strerror(errno));
}
}
if (!(monitor = ast_calloc(1, sizeof(*monitor)))) {
UNLOCK_IF_NEEDED(chan, need_lock);
return -1;
}
/* Determine file names */
if (!ast_strlen_zero(fname_base)) {
int directory = strchr(fname_base, '/') ? 1 : 0;
/* try creating the directory just in case it doesn't exist */
if (directory) {
char *name = strdup(fname_base);
snprintf(tmp, sizeof(tmp), "mkdir -p \"%s\"",dirname(name));
free(name);
ast_safe_system(tmp);
}
snprintf(monitor->read_filename, FILENAME_MAX, "%s/%s-in",
directory ? "" : ast_config_AST_MONITOR_DIR, fname_base);
snprintf(monitor->write_filename, FILENAME_MAX, "%s/%s-out",
directory ? "" : ast_config_AST_MONITOR_DIR, fname_base);
ast_copy_string(monitor->filename_base, fname_base, sizeof(monitor->filename_base));
} else {
ast_mutex_lock(&monitorlock);
snprintf(monitor->read_filename, FILENAME_MAX, "%s/audio-in-%ld",
ast_config_AST_MONITOR_DIR, seq);
snprintf(monitor->write_filename, FILENAME_MAX, "%s/audio-out-%ld",
ast_config_AST_MONITOR_DIR, seq);
seq++;
ast_mutex_unlock(&monitorlock);
channel_name = ast_strdupa(chan->name);
while ((p = strchr(channel_name, '/'))) {
*p = '-';
}
snprintf(monitor->filename_base, FILENAME_MAX, "%s/%d-%s",
ast_config_AST_MONITOR_DIR, (int)time(NULL), channel_name);
monitor->filename_changed = 1;
}
monitor->stop = ast_monitor_stop;
/* Determine file format */
if (!ast_strlen_zero(format_spec)) {
monitor->format = strdup(format_spec);
} else {
monitor->format = strdup("wav");
}
/* open files */
if (ast_fileexists(monitor->read_filename, NULL, NULL) > 0) {
ast_filedelete(monitor->read_filename, NULL);
}
if (!(monitor->read_stream = ast_writefile(monitor->read_filename,
monitor->format, NULL,
O_CREAT|O_TRUNC|O_WRONLY, 0, 0644))) {
ast_log(LOG_WARNING, "Could not create file %s\n",
monitor->read_filename);
free(monitor);
ast_channel_unlock(chan);
return -1;
}
if (ast_fileexists(monitor->write_filename, NULL, NULL) > 0) {
ast_filedelete(monitor->write_filename, NULL);
}
if (!(monitor->write_stream = ast_writefile(monitor->write_filename,
monitor->format, NULL,
O_CREAT|O_TRUNC|O_WRONLY, 0, 0644))) {
ast_log(LOG_WARNING, "Could not create file %s\n",
monitor->write_filename);
ast_closestream(monitor->read_stream);
free(monitor);
ast_channel_unlock(chan);
return -1;
}
chan->monitor = monitor;
ast_monitor_set_state(chan, AST_MONITOR_RUNNING);
/* so we know this call has been monitored in case we need to bill for it or something */
pbx_builtin_setvar_helper(chan, "__MONITORED","true");
} else {
ast_log(LOG_DEBUG,"Cannot start monitoring %s, already monitored\n",
chan->name);
res = -1;
}
UNLOCK_IF_NEEDED(chan, need_lock);
return res;
}