static
void rotter_termination_handler (int signum)
{
switch(signum) {
case SIGHUP: rotter_info("Got hangup signal."); break;
case SIGTERM: rotter_info("Got termination signal."); break;
case SIGINT: rotter_info("Got interupt signal."); break;
}
// Signal the main thead to stop
rotter_run_state = ROTTER_STATE_QUITING;
}
static int rotter_close_file(rotter_ringbuffer_t *ringbuffer)
{
rotter_info( "Closing file for ringbuffer %c.", ringbuffer->label);
encoder->close(ringbuffer->file_handle, &ringbuffer->file_start);
ringbuffer->close_file = 0;
ringbuffer->file_handle = NULL;
return 0;
}
static int rotter_open_file(rotter_ringbuffer_t *ringbuffer)
{
char filepath[MAX_FILEPATH_LEN];
int err = -1;
struct tm tm;
if (utc) {
gmtime_r( &ringbuffer->file_start.tv_sec, &tm );
} else {
localtime_r( &ringbuffer->file_start.tv_sec, &tm );
}
if (!strcasecmp(file_layout, "hierarchy")) {
err = time_to_filepath_hierarchy( &tm, encoder->file_suffix, filepath );
} else if (!strcasecmp(file_layout, "flat")) {
err = time_to_filepath_flat( &tm, encoder->file_suffix, filepath );
} else if (!strcasecmp(file_layout, "combo")) {
err = time_to_filepath_combo( &tm, encoder->file_suffix, filepath );
} else if (!strcasecmp(file_layout, "dailydir")) {
err = time_to_filepath_dailydir( &tm, encoder->file_suffix, filepath );
} else if (!strcasecmp(file_layout, "accurate")) {
err = time_to_filepath_accurate( &tm, ringbuffer->file_start.tv_usec, encoder->file_suffix, filepath );
} else {
err = time_to_filepath_custom( &tm, file_layout, filepath );
}
if (err) {
rotter_fatal( "Failed to build file path for layout: %s", file_layout );
return -1;
}
// Make sure the parent directory exists
if (rotter_mkdir_for_file(filepath)) {
rotter_fatal( "Failed to create parent directories for filepath: %s (%s)",
filepath, strerror(errno) );
return -1;
}
// Open the new file
rotter_info( "Opening new archive file for ringbuffer %c: %s", ringbuffer->label, filepath );
ringbuffer->file_handle = encoder->open(filepath, &ringbuffer->file_start);
if (ringbuffer->file_handle) {
// Success
return 0;
} else {
return 1;
}
}
// Connect one Jack port to another
int connect_jack_port( const char* out, jack_port_t *port )
{
const char* in = jack_port_name( port );
int err;
rotter_info("Connecting '%s' to '%s'", out, in);
if ((err = jack_connect(client, out, in)) != 0) {
rotter_fatal("connect_jack_port(): failed to jack_connect() ports: %d", err);
return err;
}
// Success
return 0;
}
// Initialise Jack related stuff
int init_jack( const char* client_name, jack_options_t jack_opt )
{
jack_status_t status;
// Register with Jack
if ((client = jack_client_open(client_name, jack_opt, &status)) == 0) {
rotter_fatal("Failed to start jack client: 0x%x", status);
return -1;
}
rotter_info( "JACK client registered as '%s'.", jack_get_client_name( client ) );
// Create our input port(s)
if (channels==1) {
if (!(inport[0] = jack_port_register(client, "mono", JACK_DEFAULT_AUDIO_TYPE, JackPortIsInput, 0))) {
rotter_fatal("Cannot register mono input port.");
return -1;
}
} else {
if (!(inport[0] = jack_port_register(client, "left", JACK_DEFAULT_AUDIO_TYPE, JackPortIsInput, 0))) {
rotter_fatal("Cannot register left input port.");
return -1;
}
if (!(inport[1] = jack_port_register(client, "right", JACK_DEFAULT_AUDIO_TYPE, JackPortIsInput, 0))) {
rotter_fatal( "Cannot register left input port.");
return -1;
}
}
// Register xrun callback
jack_set_xrun_callback(client, xrun_callback_jack, client);
// Register shutdown callback
jack_on_shutdown(client, shutdown_callback_jack, NULL);
// Register callback
if (jack_set_process_callback(client, callback_jack, NULL)) {
rotter_fatal( "Failed to set Jack process callback.");
return -1;
}
// Success
return 0;
}
// Delete files older than 'hours'
int deletefiles( const char* dirpath, int hours )
{
int old_niceness, new_niceness = 15;
time_t now = time(NULL);
dev_t device = get_file_device( dirpath );
if (hours<=0)
return 0;
if (delete_child_pid) {
rotter_error( "Not deleting files: the last deletion process has not finished." );
return delete_child_pid;
}
rotter_info( "Deleting files older than %d hours in %s.", hours, dirpath );
// Fork a new process
delete_child_pid = fork();
if (delete_child_pid>0) {
// Parent is here
rotter_debug( "Forked new proccess to delete files (pid=%d).", delete_child_pid );
return delete_child_pid;
} else if (delete_child_pid<0) {
rotter_error( "Warning: fork failed: %s", strerror(errno) );
return 0;
}
// Make this process nicer
// (deleting files is pretty unimportant)
old_niceness = nice( new_niceness );
rotter_debug( "Changed child proccess niceless from %d to %d.", old_niceness, new_niceness );
// Recursively process directories
deletefiles_in_dir( dirpath, device, now-(hours*3600) );
// End of child process
exit(0);
}
encoder_funcs_t* init_lame( output_format_t* format, int channels, int bitrate )
{
encoder_funcs_t* funcs = NULL;
lame_opts = lame_init();
if (lame_opts==NULL) {
rotter_error("lame error: failed to initialise.");
return NULL;
}
if ( 0 > lame_set_num_channels( lame_opts, channels ) ) {
rotter_error("lame error: failed to set number of channels.");
return NULL;
}
if ( 0 > lame_set_in_samplerate( lame_opts, jack_get_sample_rate( client ) )) {
rotter_error("lame error: failed to set input samplerate.");
return NULL;
}
if ( 0 > lame_set_out_samplerate( lame_opts, jack_get_sample_rate( client ) )) {
rotter_error("lame error: failed to set output samplerate.");
return NULL;
}
if ( 0 > lame_set_brate( lame_opts, bitrate) ) {
rotter_error("lame error: failed to set bitrate.");
return NULL;
}
if ( 0 > lame_init_params( lame_opts ) ) {
rotter_error("lame error: failed to initialize parameters.");
return NULL;
}
rotter_info( "Encoding using liblame version %s.", get_lame_version() );
rotter_debug( " Input: %d Hz, %d channels",
lame_get_in_samplerate(lame_opts),
lame_get_num_channels(lame_opts));
rotter_debug( " Output: %s Layer 3, %d kbps, %s",
lame_get_version_name(lame_opts),
lame_get_brate(lame_opts),
lame_get_mode_name(lame_opts));
// Allocate memory for encoded audio
mpeg_buffer = malloc( 1.25*SAMPLES_PER_FRAME + 7200 );
if ( mpeg_buffer==NULL ) {
rotter_error( "Failed to allocate memery for encoded audio." );
return NULL;
}
// Allocate memory for callback functions
funcs = calloc( 1, sizeof(encoder_funcs_t) );
if ( funcs==NULL ) {
rotter_error( "Failed to allocate memery for encoder callback functions structure." );
return NULL;
}
funcs->file_suffix = "mp3";
funcs->open = open_mpegaudio_file;
funcs->close = close_mpegaudio_file;
funcs->write = write_lame;
funcs->deinit = deinit_lame;
return funcs;
}