/* Core streaming function for this module
* This is what actually produces the data which gets streamed.
*
* returns: >0 Number of bytes read
* 0 Non-fatal error.
* <0 Fatal error.
*/
static int stdin_read(void *self, ref_buffer *rb)
{
int result;
stdinpcm_state *s = self;
rb->buf = malloc(BUFSIZE);
if(!rb->buf)
return -1;
result = fread(rb->buf, 1,BUFSIZE, stdin);
rb->len = result;
rb->aux_data = s->rate*s->channels*2;
if(s->newtrack)
{
rb->critical = 1;
s->newtrack = 0;
}
if(rb->len <= 0)
{
LOG_INFO0("Reached EOF, no more data available\n");
free(rb->buf);
return -1;
}
input_calculate_pcm_sleep (rb->len, rb->aux_data);
input_sleep ();
return rb->len;
}
void signal_usr1_handler(int signum)
{
LOG_INFO0("Metadata update requested");
metadata_update_signalled = 1;
thread_cond_broadcast(&ices_config->event_pending_cond);
signal(SIGUSR1, signal_usr1_handler);
}
void *ices_runner (void *arg)
{
struct runner *run = arg;
struct instance *current;
#ifdef HAVE_SCHED_GET_PRIORITY_MAX
int policy;
struct sched_param param;
pthread_getschedparam (pthread_self(), &policy, ¶m);
param . sched_priority = sched_get_priority_min (SCHED_OTHER);
if (pthread_setschedparam (pthread_self(), SCHED_OTHER, ¶m))
{
LOG_ERROR1 ("failed to set priority: %s", strerror (errno));
}
else
LOG_INFO0 ("set priority on runner");
#endif
LOG_INFO1 ("Runner %d ready", run->id);
while (1)
{
input_buffer *buffer;
buffer = runner_wait_for_data (run);
if (buffer == NULL)
break;
current = run->instances;
while (current != NULL)
{
add_to_stream (current, buffer);
current = current->next;
}
send_to_runner (run->next, buffer);
}
runner_close (run->next);
LOG_DEBUG1 ("Runner thread %d cleaning up streams", run->id);
current = run->instances;
while (current)
{
struct instance *next;
next = current->next;
stream_cleanup (current);
current = next;
}
close (run->fd[0]);
run->fd[0] = -1;
run->not_running = 1;
LOG_DEBUG1 ("Runner thread %d finshed", run->id);
return NULL;
}
void signal_hup_handler(int signum)
{
LOG_INFO0("Flushing logs");
log_flush(ices_config->log_id);
/* Now, let's tell it to move to the next track */
ices_config->inmod->handle_event(ices_config->inmod,EVENT_NEXTTRACK,NULL);
signal(SIGHUP, signal_hup_handler);
}
void signal_int_handler(int signum)
{
/* Is a mutex needed here? Probably */
if (!ices_config->shutdown)
{
LOG_INFO0("Shutdown requested...");
ices_config->shutdown = 1;
thread_cond_broadcast(&ices_config->queue_cond);
/* If user gives a second sigint, just die. */
signal(SIGINT, SIG_DFL);
}
}
input_module_t *stdin_open_module(module_param_t *params)
{
input_module_t *mod = calloc(1, sizeof(input_module_t));
stdinpcm_state *s;
module_param_t *current;
int use_metadata = 1; /* Default to on */
mod->type = ICES_INPUT_PCM;
mod->getdata = stdin_read;
mod->handle_event = event_handler;
mod->metadata_update = metadata_update;
mod->internal = malloc(sizeof(stdinpcm_state));
s = mod->internal;
s->rate = 44100; /* Defaults */
s->channels = 2;
s->metadata = NULL;
thread_mutex_create(&s->metadatalock);
current = params;
while(current)
{
if(!strcmp(current->name, "rate"))
s->rate = atoi(current->value);
else if(!strcmp(current->name, "channels"))
s->channels = atoi(current->value);
else if(!strcmp(current->name, "metadata"))
use_metadata = atoi(current->value);
else if(!strcmp(current->name, "metadatafilename"))
ices_config->metadata_filename = current->value;
else
LOG_WARN1("Unknown parameter %s for stdinpcm module", current->name);
current = current->next;
}
if(use_metadata)
{
if (ices_config->metadata_filename)
{
LOG_INFO0("Starting metadata update thread");
thread_create("im_stdinpcm-metadata", metadata_thread_signal, mod, 1);
}
}
return mod;
}
static int event_handler(input_module_t *mod, enum event_type ev, void *param)
{
switch(ev)
{
case EVENT_SHUTDOWN:
close_module(mod);
break;
case EVENT_NEXTTRACK:
LOG_INFO0("Moving to next file in playlist.");
((playlist_state_t *)mod->internal)->nexttrack = 1;
break;
default:
LOG_WARN1("Unhandled event %d", ev);
return -1;
}
return 0;
}
/* Core streaming function for this module
* This is what actually produces the data which gets streamed.
*
* returns: >0 Number of bytes read
* 0 Non-fatal error.
* <0 Fatal error.
*/
static int roar_read(void *self, ref_buffer *rb)
{
ssize_t result;
int err;
im_roar_state *s = self;
roar_plugincontainer_appsched_trigger(s->plugins, ROAR_DL_APPSCHED_UPDATE);
rb->buf = malloc(BUFSIZE * roar_info2framesize(&s->info)/8);
if(!rb->buf)
return -1;
result = roar_vs_read(s->vss, rb->buf, BUFSIZE * roar_info2framesize(&s->info)/8, &err);
rb->len = result;
rb->aux_data = roar_info2bitspersec(&s->info)/8;
if(s->newtrack)
{
rb->critical = 1;
s->newtrack = 0;
}
if(result == -1 && err == ROAR_ERROR_INTERRUPTED)
{
return 0; /* Non-fatal error */
}
else if(result <= 0)
{
if(result == 0)
LOG_INFO0("Reached EOF, no more data available");
else
LOG_ERROR1("Error reading from sound server: %s", roar_vs_strerr(err));
free(rb->buf);
rb->buf = NULL;
return -1;
}
return rb->len;
}
void input_loop(void)
{
input_module_t *inmod=NULL;
instance_t *instance, *prev, *next;
queue_item *queued;
int shutdown = 0;
int current_module = 0;
int valid_stream = 1;
int inc_count;
int not_waiting_for_critical;
int foundmodule = 0;
thread_cond_create(&ices_config->queue_cond);
thread_cond_create(&ices_config->event_pending_cond);
thread_mutex_create(&ices_config->refcount_lock);
thread_mutex_create(&ices_config->flush_lock);
memset (&control, 0, sizeof (control));
while(ices_config->playlist_module && modules[current_module].open)
{
if(!strcmp(ices_config->playlist_module, modules[current_module].name))
{
foundmodule = 1;
inmod = modules[current_module].open(ices_config->module_params);
break;
}
current_module++;
}
if(!inmod)
{
if(foundmodule)
LOG_ERROR1("Couldn't initialise input module \"%s\"",
ices_config->playlist_module);
else
LOG_ERROR1("No input module named \"%s\" could be found",
ices_config->playlist_module);
return;
}
ices_config->inmod = inmod;
/* ok, basic config stuff done. Now, we want to start all our listening
* threads.
*/
instance = ices_config->instances;
while(instance)
{
stream_description *arg = calloc(1, sizeof(stream_description));
arg->stream = instance;
arg->input = inmod;
/*
if(instance->savefilename != NULL)
thread_create("savefile", savefile_stream, arg, 1);
*/
thread_create("stream", ices_instance_stream, arg, 1);
instance = instance->next;
}
/* treat as if a signal has arrived straight away */
signal_usr1_handler (0);
/* now we go into the main loop
* We shut down the main thread ONLY once all the instances
* have killed themselves.
*/
while(!shutdown)
{
ref_buffer *chunk = calloc(1, sizeof(ref_buffer));
buffer_queue *current;
int ret;
instance = ices_config->instances;
prev = NULL;
while(instance)
{
/* if an instance has died, get rid of it
** this should be replaced with something that tries to
** restart the instance, probably.
*/
if (instance->died)
{
LOG_DEBUG0("An instance died, removing it");
next = instance->next;
if (prev)
prev->next = next;
else
ices_config->instances = next;
/* Just in case, flush any existing buffers
* Locks shouldn't be needed, but lets be SURE */
thread_mutex_lock(&ices_config->flush_lock);
input_flush_queue(instance->queue, 0);
thread_mutex_unlock(&ices_config->flush_lock);
config_free_instance(instance);
free(instance);
instance = next;
continue;
}
prev = instance;
instance = instance->next;
}
instance = ices_config->instances;
if(!instance)
{
shutdown = 1;
free(chunk);
continue;
}
if(ices_config->shutdown) /* We've been signalled to shut down, but */
{ /* the instances haven't done so yet... */
timing_sleep(250); /* sleep for quarter of a second */
free(chunk);
continue;
}
/* If this is the first time through, set initial time. This should
* be done before the call to inmod->getdata() below, in order to
* properly keep time if this input module blocks.
*/
if (control.starttime == 0)
control.starttime = timing_get_time();
/* get a chunk of data from the input module */
ret = inmod->getdata(inmod->internal, chunk);
/* input module signalled non-fatal error. Skip this chunk */
if(ret==0)
{
free(chunk);
continue;
}
/* Input module signalled fatal error, shut down - nothing we can do
* from here */
if(ret < 0)
{
ices_config->shutdown = 1;
thread_cond_broadcast(&ices_config->queue_cond);
free(chunk);
continue;
}
if(chunk->critical)
valid_stream = 1;
if(ret < 0) {
/* Tell the input module to go to the next track, hopefully allowing
* resync. */
ices_config->inmod->handle_event(ices_config->inmod,
EVENT_NEXTTRACK,NULL);
valid_stream = 0;
}
inc_count = 0;
not_waiting_for_critical = 0;
if(valid_stream)
{
while(instance)
{
if(instance->wait_for_critical && !chunk->critical)
{
instance = instance->next;
continue;
}
not_waiting_for_critical = 1;
if(instance->skip)
{
instance = instance->next;
continue;
}
queued = malloc(sizeof(queue_item));
queued->buf = chunk;
current = instance->queue;
inc_count++;
thread_mutex_lock(¤t->lock);
if(current->head == NULL)
{
current->head = current->tail = queued;
current->head->next = current->tail->next = NULL;
}
else
{
current->tail->next = queued;
queued->next = NULL;
current->tail = queued;
}
current->length++;
thread_mutex_unlock(¤t->lock);
instance = instance->next;
}
}
/* If everything is waiting for a critical buffer, force one
* early. (This will take effect on the next pass through)
*/
if(valid_stream && !not_waiting_for_critical) {
ices_config->inmod->handle_event(ices_config->inmod,
EVENT_NEXTTRACK,NULL);
instance = ices_config->instances;
while(instance) {
thread_mutex_lock(&ices_config->flush_lock);
input_flush_queue(instance->queue, 0);
instance->wait_for_critical = 0;
thread_mutex_unlock(&ices_config->flush_lock);
instance = instance->next;
}
}
/* Make sure we don't end up with a 0-refcount buffer that
* will never hit any of the free points. (this happens
* if all threads are set to skip, for example).
*/
thread_mutex_lock(&ices_config->refcount_lock);
chunk->count += inc_count;
if(!chunk->count)
{
free(chunk->buf);
free(chunk);
}
thread_mutex_unlock(&ices_config->refcount_lock);
if(valid_stream) {
/* wake up the instances */
thread_cond_broadcast(&ices_config->queue_cond);
}
}
LOG_INFO0 ("All instances removed, shutting down...");
ices_config->shutdown = 1;
thread_cond_broadcast(&ices_config->event_pending_cond);
timing_sleep(250); /* sleep for quarter of a second */
thread_cond_destroy(&ices_config->queue_cond);
thread_cond_destroy(&ices_config->event_pending_cond);
thread_mutex_destroy(&ices_config->flush_lock);
thread_mutex_destroy(&ices_config->refcount_lock);
inmod->handle_event(inmod, EVENT_SHUTDOWN, NULL);
return;
}
/* Core streaming function for this module
* This is what actually produces the data which gets streamed.
*
* returns: >0 Number of bytes read
* 0 Non-fatal error.
* <0 Fatal error.
*/
static int playlist_read(void *self, ref_buffer *rb)
{
playlist_state_t *pl = (playlist_state_t *)self;
int bytes;
unsigned char *buf;
char *newfn;
int result;
ogg_page og;
if (pl->errors > 5)
{
LOG_WARN0("Too many consecutive errors - exiting");
return -1;
}
if (!pl->current_file || pl->nexttrack)
{
pl->nexttrack = 0;
if (pl->current_file && strcmp (pl->filename, "-"))
{
fclose(pl->current_file);
pl->current_file = NULL;
}
if (pl->file_ended)
{
pl->file_ended(pl->data, pl->filename);
}
newfn = pl->get_filename(pl->data);
if (!newfn)
{
LOG_INFO0("No more filenames available, end of playlist");
return -1; /* No more files available */
}
if (strcmp (newfn, "-"))
{
if (!pl->allow_repeat && pl->filename && !strcmp(pl->filename, newfn))
{
LOG_ERROR0("Cannot play same file twice in a row, skipping");
pl->errors++;
pl->free_filename (pl->data, newfn);
return 0;
}
pl->free_filename(pl->data, pl->filename);
pl->filename = newfn;
pl->current_file = fopen(pl->filename, "rb");
if (!pl->current_file)
{
LOG_WARN2("Error opening file \"%s\": %s",pl->filename, strerror(errno));
pl->errors++;
return 0;
}
LOG_INFO1("Currently playing \"%s\"", pl->filename);
}
else
{
LOG_INFO0("Currently playing from stdin");
pl->current_file = stdin;
pl->free_filename(pl->data, pl->filename);
pl->filename = newfn;
}
/* Reinit sync, so that dead data from previous file is discarded */
ogg_sync_clear(&pl->oy);
ogg_sync_init(&pl->oy);
}
input_sleep ();
while(1)
{
result = ogg_sync_pageout(&pl->oy, &og);
if(result < 0)
LOG_WARN1("Corrupt or missing data in file (%s)", pl->filename);
else if(result > 0)
{
if (ogg_page_bos (&og))
{
if (ogg_page_serialno (&og) == pl->current_serial)
LOG_WARN1 ("detected duplicate serial number reading \"%s\"", pl->filename);
pl->current_serial = ogg_page_serialno (&og);
}
if (input_calculate_ogg_sleep (&og) < 0)
{
pl->nexttrack = 1;
return 0;
}
rb->len = og.header_len + og.body_len;
rb->buf = malloc(rb->len);
rb->aux_data = og.header_len;
memcpy(rb->buf, og.header, og.header_len);
memcpy(rb->buf+og.header_len, og.body, og.body_len);
if(ogg_page_granulepos(&og)==0)
rb->critical = 1;
break;
}
/* If we got to here, we didn't have enough data. */
buf = ogg_sync_buffer(&pl->oy, BUFSIZE);
bytes = fread(buf,1, BUFSIZE, pl->current_file);
if (bytes <= 0)
{
if (feof(pl->current_file))
{
pl->nexttrack = 1;
return playlist_read(pl,rb);
}
else
{
LOG_ERROR2("Read error from \"%s\": %s", pl->filename, strerror(errno));
fclose(pl->current_file);
pl->current_file=NULL;
pl->errors++;
return 0;
}
}
else
ogg_sync_wrote(&pl->oy, bytes);
}
pl->errors=0;
return rb->len;
}
input_module_t *roar_open_module(module_param_t *params)
{
input_module_t *mod = calloc(1, sizeof(input_module_t));
im_roar_state *s;
module_param_t *current;
const char * server = NULL;
int dir = ROAR_DIR_MONITOR;
enum { MD_NONE = 0, MD_FILE = 1, MD_STREAM = 2 } use_metadata = MD_STREAM;
int err;
mod->getdata = roar_read;
mod->handle_event = event_handler;
mod->metadata_update = metadata_update;
mod->internal = calloc(1, sizeof(im_roar_state));
s = mod->internal;
if(roar_profile2info(&s->info, "default") == -1)
{
LOG_ERROR1("Failed to get default audio profile: %s",
roar_error2str(roar_error));
return NULL;
}
s->info.bits = 16;
s->vss = NULL;
s->plugins = roar_plugincontainer_new_simple(IM_ROAR_APPNAME, IM_ROAR_ABIVERSION);
if (!s->plugins)
{
LOG_ERROR1("Failed to create plugin container: %s",
roar_error2str(roar_error));
return NULL;
}
thread_mutex_create(&s->metadatalock);
current = params;
while(current)
{
if(!strcmp(current->name, "rate"))
s->info.rate = roar_str2rate(current->value);
else if(!strcmp(current->name, "channels"))
s->info.channels = roar_str2channels(current->value);
else if(!strcmp(current->name, "codec"))
s->info.codec = roar_str2codec(current->value);
else if(!strcmp(current->name, "aiprofile")) {
if (roar_profile2info(&s->info, current->value) == -1) {
LOG_WARN2("Can not get audio info profile %s: %s", current->value, roar_error2str(roar_error));
}
s->info.bits = 16;
} else if(!strcmp(current->name, "dir")) {
if ( !strcasecmp(current->value, "monitor") ) {
dir = ROAR_DIR_MONITOR;
} else if ( !strcasecmp(current->value, "record") ) {
dir = ROAR_DIR_RECORD;
} else {
LOG_WARN2("Unknown value %s for parameter %s for roar module", current->value, current->name);
}
} else if(!strcmp(current->name, "device") || !strcmp(current->name, "server"))
server = current->value;
else if(!strcmp(current->name, "metadata")) {
if ( !strcasecmp(current->value, "none") ) {
use_metadata = MD_NONE;
} else if ( !strcasecmp(current->value, "file") ) {
use_metadata = MD_FILE;
} else if ( !strcasecmp(current->value, "stream") ) {
use_metadata = MD_STREAM;
} else {
use_metadata = atoi(current->value);
}
} else if(!strcmp(current->name, "metadatafilename")) {
ices_config->metadata_filename = current->value;
use_metadata = MD_FILE;
} else if(!strcmp(current->name, "plugin")) {
roar_plugin_load(mod, current->value);
} else
LOG_WARN1("Unknown parameter %s for roar module", current->name);
current = current->next;
}
mod->type = ICES_INPUT_PCM;
switch (s->info.codec) {
case ROAR_CODEC_PCM_LE:
mod->subtype = INPUT_PCM_LE_16;
break;
case ROAR_CODEC_PCM_BE:
mod->subtype = INPUT_PCM_BE_16;
break;
case ROAR_CODEC_OGG_GENERAL:
LOG_WARN0("Codec may not work, specify ogg_vorbis for Vorbis streaming");
case ROAR_CODEC_OGG_VORBIS:
mod->type = ICES_INPUT_VORBIS;
// we do not set mod->subtype here, strange design ices2 has...
break;
case -1:
LOG_ERROR0("Unknown Codec");
return NULL;
default:
LOG_ERROR1("Unsupported Codec: %s", roar_codec2str(s->info.codec));
return NULL;
}
roar_plugincontainer_appsched_trigger(s->plugins, ROAR_DL_APPSCHED_INIT);
/* Open the VS connection */
if ( (s->vss = roar_vs_new(server, IM_ROAR_PROGNAME, &err)) == NULL ) {
LOG_ERROR2("Failed to open sound server %s: %s",
server, roar_vs_strerr(err));
goto fail;
}
/* Now, set the required parameters on that device */
if ( roar_vs_stream(s->vss, &s->info, dir, &err) == -1 ) {
LOG_ERROR2("Failed to create a new stream on sound server %s: %s",
server, roar_vs_strerr(err));
goto fail;
}
if ( _set_flags(roar_vs_connection_obj(s->vss, NULL), roar_vs_stream_obj(s->vss, NULL),
ROAR_FLAG_META, ROAR_RESET_FLAG) != 0 ) {
LOG_WARN0("Can not reset metadata flag from stream");
}
/* We're done, and we didn't fail! */
LOG_INFO3("Opened sound server at %s at %d channel(s), %d Hz",
server, s->info.channels, s->info.rate);
switch (use_metadata) {
case MD_NONE:
break;
case MD_FILE:
LOG_INFO0("Starting metadata update thread");
if(ices_config->metadata_filename)
thread_create("im_roar-metadata", metadata_thread_signal, mod, 1);
else
thread_create("im_roar-metadata", metadata_thread_stdin, mod, 1);
break;
case MD_STREAM:
if ( _set_flags(roar_vs_connection_obj(s->vss, NULL), roar_vs_stream_obj(s->vss, NULL),
ROAR_FLAG_META, ROAR_SET_FLAG) != 0 ) {
LOG_WARN0("Can not set metadata flag from stream");
}
break;
}
return mod;
fail:
close_module(mod); /* safe, this checks for valid contents */
return NULL;
}
input_module_t *sndio_open_module(module_param_t *params)
{
input_module_t *mod = calloc(1, sizeof(input_module_t));
im_sndio_state *s;
module_param_t *current;
char *device = NULL; /* default device */
int sample_rate = 44100;
int channels = 2;
int use_metadata = 1; /* Default to on */
mod->type = ICES_INPUT_PCM;
#ifdef WORDS_BIGENDIAN
mod->subtype = INPUT_PCM_BE_16;
#else
mod->subtype = INPUT_PCM_LE_16;
#endif
mod->getdata = sndio_read;
mod->handle_event = event_handler;
mod->metadata_update = metadata_update;
mod->internal = calloc(1, sizeof(im_sndio_state));
s = mod->internal;
thread_mutex_create(&s->metadatalock);
current = params;
while (current) {
if (!strcmp(current->name, "rate"))
sample_rate = atoi(current->value);
else if (!strcmp(current->name, "channels"))
channels = atoi(current->value);
else if (!strcmp(current->name, "device"))
device = current->value;
else if (!strcmp(current->name, "metadata"))
use_metadata = atoi(current->value);
else if(!strcmp(current->name, "metadatafilename"))
ices_config->metadata_filename = current->value;
else
LOG_WARN1("Unknown parameter %s for sndio module", current->name);
current = current->next;
}
/* First up, lets open the audio device */
if((s->hdl = sio_open(device, SIO_REC, 0)) == NULL) {
LOG_ERROR0("Failed to open sndio device");
goto fail;
}
/* Try and set up what we want */
sio_initpar(&s->par);
s->par.rate = sample_rate;
s->par.rchan = channels;
s->par.bits = 16;
s->par.sig = 1;
s->par.le = SIO_LE_NATIVE;
s->par.round = BUFSIZE;
s->par.appbufsz = BUFSIZE * 4;
if (!sio_setpar(s->hdl, &s->par) || !sio_getpar(s->hdl, &s->par)) {
LOG_ERROR0("Failed to configure sndio device");
goto fail;
}
/* Check all went according to plan */
if (s->par.rate != sample_rate) {
LOG_ERROR0("Couldn't set sampling rate");
goto fail;
}
if (s->par.rchan != channels) {
LOG_ERROR0("Couldn't set number of channels");
goto fail;
}
if (s->par.bits != 16) {
LOG_ERROR0("Couldn't set 16 bit precision");
goto fail;
}
if (s->par.sig != 1) {
LOG_ERROR0("Couldn't set signed linear encoding");
goto fail;
}
if (s->par.le != SIO_LE_NATIVE) {
LOG_ERROR0("Couldn't set proper endianness");
goto fail;
}
if (!sio_start(s->hdl)) {
LOG_ERROR0("Couldn't start sndio");
goto fail;
}
/* We're done, and we didn't fail! */
LOG_INFO2("Opened audio device for %d channel(s), %d Hz",
channels, sample_rate);
if(use_metadata)
{
LOG_INFO0("Starting metadata update thread");
if(ices_config->metadata_filename)
thread_create("im_sndio-metadata", metadata_thread_signal, mod, 1);
else
thread_create("im_sndio-metadata", metadata_thread_stdin, mod, 1);
}
return mod;
fail:
close_module(mod); /* safe, this checks for valid contents */
return NULL;
}
input_module_t *alsa_open_module(module_param_t *params)
{
input_module_t *mod = calloc(1, sizeof(input_module_t));
im_alsa_state *s;
module_param_t *current;
char *device = "plughw:0,0"; /* default device */
int format = AFMT_S16_LE;
int channels, rate;
int use_metadata = 1; /* Default to on */
unsigned int buffered_time;
snd_pcm_stream_t stream = SND_PCM_STREAM_CAPTURE;
snd_pcm_hw_params_t *hwparams;
int err;
mod->type = ICES_INPUT_PCM;
mod->subtype = INPUT_PCM_LE_16;
mod->getdata = alsa_read;
mod->handle_event = event_handler;
mod->metadata_update = metadata_update;
mod->internal = calloc(1, sizeof(im_alsa_state));
s = mod->internal;
s->fd = NULL; /* Set it to something invalid, for now */
s->rate = 44100; /* Defaults */
s->channels = 2;
thread_mutex_create(&s->metadatalock);
current = params;
while(current)
{
if(!strcmp(current->name, "rate"))
s->rate = atoi(current->value);
else if(!strcmp(current->name, "channels"))
s->channels = atoi(current->value);
else if(!strcmp(current->name, "device"))
device = current->value;
else if(!strcmp(current->name, "metadata"))
use_metadata = atoi(current->value);
else if(!strcmp(current->name, "metadatafilename"))
ices_config->metadata_filename = current->value;
else
LOG_WARN1("Unknown parameter %s for alsa module", current->name);
current = current->next;
}
snd_pcm_hw_params_alloca(&hwparams);
if ((err = snd_pcm_open(&s->fd, device, stream, 0)) < 0)
{
LOG_ERROR2("Failed to open audio device %s: %s", device, snd_strerror(err));
goto fail;
}
if ((err = snd_pcm_hw_params_any(s->fd, hwparams)) < 0)
{
LOG_ERROR1("Failed to initialize hwparams: %s", snd_strerror(err));
goto fail;
}
if ((err = snd_pcm_hw_params_set_access(s->fd, hwparams, SND_PCM_ACCESS_RW_INTERLEAVED)) < 0)
{
LOG_ERROR1("Error setting access: %s", snd_strerror(err));
goto fail;
}
if ((err = snd_pcm_hw_params_set_format(s->fd, hwparams, SND_PCM_FORMAT_S16_LE)) < 0)
{
LOG_ERROR1("Couldn't set sample format to SND_PCM_FORMAT_S16_LE: %s", snd_strerror(err));
goto fail;
}
if ((err = snd_pcm_hw_params_set_rate_near(s->fd, hwparams, &s->rate, 0)) < 0)
{
LOG_ERROR1("Error setting rate: %s", snd_strerror(err));
goto fail;
}
if ((err = snd_pcm_hw_params_set_channels(s->fd, hwparams, s->channels)) < 0)
{
LOG_ERROR1("Error setting channels: %s", snd_strerror(err));
goto fail;
}
if ((err = snd_pcm_hw_params_set_periods(s->fd, hwparams, 2, 0)) < 0)
{
LOG_ERROR1("Error setting periods: %s", snd_strerror(err));
goto fail;
}
buffered_time = 500000;
if ((err = snd_pcm_hw_params_set_buffer_time_near(s->fd, hwparams, &buffered_time, 0)) < 0)
{
LOG_ERROR1("Error setting buffersize: %s", snd_strerror(err));
goto fail;
}
if ((err = snd_pcm_hw_params(s->fd, hwparams)) < 0)
{
LOG_ERROR1("Error setting HW params: %s", snd_strerror(err));
goto fail;
}
/* We're done, and we didn't fail! */
LOG_INFO3("Opened audio device %s at %d channel(s), %d Hz",
device, s->channels, s->rate);
if(use_metadata)
{
if(ices_config->metadata_filename)
thread_create("im_alsa-metadata", metadata_thread_signal, mod, 1);
else
thread_create("im_alsa-metadata", metadata_thread_stdin, mod, 1);
LOG_INFO0("Started metadata update thread");
}
return mod;
fail:
close_module(mod); /* safe, this checks for valid contents */
return NULL;
}
/* The main loop for each instance. Gets data passed to it from the stream
* manager (which gets it from the input module), and streams it to the
* specified server
*/
void *ices_instance_stream(void *arg)
{
int ret, shouterr;
ref_buffer *buffer;
char *connip;
stream_description *sdsc = arg;
instance_t *stream = sdsc->stream;
input_module_t *inmod = sdsc->input;
int reencoding = (inmod->type == ICES_INPUT_VORBIS) && stream->encode;
int encoding = (inmod->type == ICES_INPUT_PCM) && stream->encode;
char *stream_name = NULL, *stream_genre = NULL, *stream_description = NULL;
char *user = NULL;
vorbis_comment_init(&sdsc->vc);
sdsc->shout = shout_new();
/* we only support the ice protocol and vorbis streams currently */
shout_set_format(sdsc->shout, SHOUT_FORMAT_VORBIS);
//shout_set_protocol(sdsc->shout, SHOUT_PROTOCOL_ICE);
shout_set_protocol(sdsc->shout, SHOUT_PROTOCOL_HTTP);
signal(SIGPIPE, signal_hup_handler);
connip = malloc(16);
if(!resolver_getip(stream->hostname, connip, 16))
{
LOG_ERROR1("Could not resolve hostname \"%s\"", stream->hostname);
free(connip);
stream->died = 1;
return NULL;
}
if (!(shout_set_host(sdsc->shout, connip)) == SHOUTERR_SUCCESS) {
LOG_ERROR1("libshout error: %s\n", shout_get_error(sdsc->shout));
free(connip);
stream->died = 1;
return NULL;
}
shout_set_port(sdsc->shout, stream->port);
if (!(shout_set_password(sdsc->shout, stream->password)) == SHOUTERR_SUCCESS) {
LOG_ERROR1("libshout error: %s\n", shout_get_error(sdsc->shout));
free(connip);
stream->died = 1;
return NULL;
}
if (stream->user)
user = stream->user;
else
user = "******";
if(shout_set_user(sdsc->shout, user) != SHOUTERR_SUCCESS) {
LOG_ERROR1("libshout error: %s\n", shout_get_error(sdsc->shout));
free(connip);
stream->died = 1;
return NULL;
}
if (!(shout_set_agent(sdsc->shout, VERSIONSTRING)) == SHOUTERR_SUCCESS) {
LOG_ERROR1("libshout error: %s\n", shout_get_error(sdsc->shout));
free(connip);
stream->died = 1;
return NULL;
}
if (!(shout_set_mount(sdsc->shout, stream->mount)) == SHOUTERR_SUCCESS) {
LOG_ERROR1("libshout error: %s\n", shout_get_error(sdsc->shout));
free(connip);
stream->died = 1;
return NULL;
}
/* set the metadata for the stream */
if(stream->stream_name)
stream_name = stream->stream_name;
else if (ices_config->stream_name)
stream_name = ices_config->stream_name;
if(stream->stream_description)
stream_description = stream->stream_description;
else if (ices_config->stream_description)
stream_description = ices_config->stream_description;
if(stream->stream_genre)
stream_genre = stream->stream_genre;
else if (ices_config->stream_genre)
stream_genre = ices_config->stream_genre;
if(stream_name)
if (!(shout_set_name(sdsc->shout, stream_name)) == SHOUTERR_SUCCESS) {
LOG_ERROR1("libshout error: %s\n", shout_get_error(sdsc->shout));
free(connip);
stream->died = 1;
return NULL;
}
if (stream_genre)
if (!(shout_set_genre(sdsc->shout, stream_genre)) == SHOUTERR_SUCCESS) {
LOG_ERROR1("libshout error: %s\n", shout_get_error(sdsc->shout));
free(connip);
stream->died = 1;
return NULL;
}
if (stream_description)
if (!(shout_set_description(sdsc->shout, stream_description)) == SHOUTERR_SUCCESS) {
LOG_ERROR1("libshout error: %s\n", shout_get_error(sdsc->shout));
free(connip);
stream->died = 1;
return NULL;
}
if(stream->downmix && encoding && stream->channels == 1) {
stream->channels = 1;
sdsc->downmix = downmix_initialise();
}
if(stream->resampleinrate && stream->resampleoutrate && encoding) {
stream->samplerate = stream->resampleoutrate;
sdsc->resamp = resample_initialise(stream->channels,
stream->resampleinrate, stream->resampleoutrate);
}
if(encoding)
{
if(inmod->metadata_update)
inmod->metadata_update(inmod->internal, &sdsc->vc);
sdsc->enc = encode_initialise(stream->channels, stream->samplerate,
stream->managed, stream->min_br, stream->nom_br, stream->max_br,
stream->quality, stream->serial++, &sdsc->vc);
if(!sdsc->enc) {
LOG_ERROR0("Failed to configure encoder");
stream->died = 1;
return NULL; /* FIXME: probably leaking some memory here */
}
}
else if(reencoding)
sdsc->reenc = reencode_init(stream);
if(stream->savefilename != NULL)
{
stream->savefile = fopen(stream->savefilename, "wb");
if(!stream->savefile)
LOG_ERROR2("Failed to open stream save file %s: %s",
stream->savefilename, strerror(errno));
else
LOG_INFO1("Saving stream to file %s", stream->savefilename);
}
if((shouterr = shout_open(sdsc->shout)) == SHOUTERR_SUCCESS)
{
LOG_INFO3("Connected to server: %s:%d%s",
shout_get_host(sdsc->shout), shout_get_port(sdsc->shout), shout_get_mount(sdsc->shout));
while(1)
{
if(stream->buffer_failures > MAX_ERRORS)
{
LOG_WARN0("Too many errors, shutting down");
break;
}
buffer = stream_wait_for_data(stream);
/* buffer being NULL means that either a fatal error occured,
* or we've been told to shut down
*/
if(!buffer)
break;
/* If data is NULL or length is 0, we should just skip this one.
* Probably, we've been signalled to shut down, and that'll be
* caught next iteration. Add to the error count just in case,
* so that we eventually break out anyway
*/
if(!buffer->buf || !buffer->len)
{
LOG_WARN0("Bad buffer dequeued!");
stream->buffer_failures++;
continue;
}
if(stream->wait_for_critical)
{
LOG_INFO0("Trying restart on new substream");
stream->wait_for_critical = 0;
}
ret = process_and_send_buffer(sdsc, buffer);
/* No data produced, do nothing */
if(ret == -1)
;
/* Fatal error */
else if(ret == -2)
{
LOG_ERROR0("Serious error, waiting to restart on "
"next substream. Stream temporarily suspended.");
/* Set to wait until a critical buffer comes through (start of
* a new substream, typically), and flush existing queue.
*/
thread_mutex_lock(&ices_config->flush_lock);
stream->wait_for_critical = 1;
input_flush_queue(stream->queue, 0);
thread_mutex_unlock(&ices_config->flush_lock);
}
/* Non-fatal shout error */
else if(ret == 0)
{
LOG_ERROR2("Send error: %s (%s)",
shout_get_error(sdsc->shout), strerror(errno));
if(shout_get_errno(sdsc->shout) == SHOUTERR_SOCKET)
{
int i=0;
/* While we're trying to reconnect, don't receive data
* to this instance, or we'll overflow once reconnect
* succeeds
*/
thread_mutex_lock(&ices_config->flush_lock);
stream->skip = 1;
/* Also, flush the current queue */
input_flush_queue(stream->queue, 1);
thread_mutex_unlock(&ices_config->flush_lock);
while((i < stream->reconnect_attempts ||
stream->reconnect_attempts==-1) &&
!ices_config->shutdown)
{
i++;
LOG_WARN0("Trying reconnect after server socket error");
shout_close(sdsc->shout);
if((shouterr = shout_open(sdsc->shout)) == SHOUTERR_SUCCESS)
{
LOG_INFO3("Connected to server: %s:%d%s",
shout_get_host(sdsc->shout), shout_get_port(sdsc->shout),
shout_get_mount(sdsc->shout));
/* This stream can't restart until the next
* logical stream comes along, since the
* server won't have any cached headers for
* this source/connection. So, don't continue
* yet.
*/
thread_mutex_lock(&ices_config->flush_lock);
stream->wait_for_critical = 1;
input_flush_queue(stream->queue, 0);
thread_mutex_unlock(&ices_config->flush_lock);
break;
}
else
{
LOG_ERROR3("Failed to reconnect to %s:%d (%s)",
shout_get_host(sdsc->shout),shout_get_port(sdsc->shout),
shout_get_error(sdsc->shout));
if(i==stream->reconnect_attempts)
{
LOG_ERROR0("Reconnect failed too many times, "
"giving up.");
/* We want to die now */
stream->buffer_failures = MAX_ERRORS+1;
}
else /* Don't try again too soon */
sleep(stream->reconnect_delay);
}
}
stream->skip = 0;
}
stream->buffer_failures++;
}
stream_release_buffer(buffer);
}
}
else
{
LOG_ERROR3("Failed initial connect to %s:%d (%s)",
shout_get_host(sdsc->shout),shout_get_port(sdsc->shout), shout_get_error(sdsc->shout));
}
shout_close(sdsc->shout);
if(stream->savefile != NULL)
fclose(stream->savefile);
shout_free(sdsc->shout);
encode_clear(sdsc->enc);
reencode_clear(sdsc->reenc);
downmix_clear(sdsc->downmix);
resample_clear(sdsc->resamp);
vorbis_comment_clear(&sdsc->vc);
stream->died = 1;
return NULL;
}
encoder_state *encode_initialise(int channels, int rate, int managed,
int min_br, int nom_br, int max_br, float quality, vorbis_comment *vc)
{
encoder_state *s = calloc(1, sizeof(encoder_state));
ogg_packet h1,h2,h3;
/* Have vorbisenc choose a mode for us */
vorbis_info_init(&s->vi);
if (max_br < 0 && nom_br < 0 && min_br < 0)
managed = 0;
if (managed == 0 && nom_br >= 0)
if (min_br >= 0 || max_br >= 0)
managed = 1;
do
{
if (managed)
{
LOG_INFO5("Encoder initialising with bitrate management: %d "
"channels, %d Hz, minimum bitrate %d, nominal %d, "
"maximum %d", channels, rate, min_br, nom_br, max_br);
if (vorbis_encode_setup_managed (&s->vi, channels,
rate, max_br, nom_br, min_br))
break;
}
else
{
if (nom_br < 0)
{
LOG_INFO3("Encoder initialising in VBR mode: %d channel(s), "
"%d Hz, quality %f", channels, rate, quality);
if (min_br > 0 || max_br > 0)
LOG_INFO0("ignoring min/max bitrate, not supported in VBR "
"mode, use nominal-bitrate instead");
if (vorbis_encode_setup_vbr(&s->vi, channels, rate, quality*0.1))
break;
#if 0
if (max_br > 0 || min_br > 0)
{
struct ovectl_ratemanage_arg ai;
if (vorbis_encode_ctl(&s->vi, OV_ECTL_RATEMANAGE_GET, &ai))
break;
ai.bitrate_hard_min = min_br;
ai.bitrate_hard_max = max_br;
ai.management_active = 1;
if (vorbis_encode_ctl(&s->vi, OV_ECTL_RATEMANAGE_SET, &ai))
break;
}
#endif
}
else
{
LOG_INFO3("Encoder initialising in VBR mode: %d "
"channels, %d Hz, nominal %d", channels, rate, nom_br);
if (vorbis_encode_setup_managed (&s->vi, channels,
rate, max_br, nom_br, max_br))
break;
if (vorbis_encode_ctl (&s->vi, OV_ECTL_RATEMANAGE_SET, NULL))
break;
}
}
if (vorbis_encode_setup_init(&s->vi))
break;
vorbis_analysis_init(&s->vd, &s->vi);
vorbis_block_init(&s->vd, &s->vb);
ogg_stream_init(&s->os, _get_serial());
vorbis_analysis_headerout(&s->vd, vc, &h1,&h2,&h3);
ogg_stream_packetin(&s->os, &h1);
ogg_stream_packetin(&s->os, &h2);
ogg_stream_packetin(&s->os, &h3);
s->in_header = 1;
s->samplerate = rate;
s->samples_in_current_page = 0;
s->prevgranulepos = 0;
return s;
} while (0);
LOG_INFO0("Failed to configure encoder, verify settings");
vorbis_info_clear(&s->vi);
free (s);
return NULL;
}
void *metadata_thread_signal(void *arg)
{
char buf[1024];
input_module_t *mod = arg;
while(1)
{
char **md = NULL;
int comments = 0;
FILE *file;
while(metadata_update_signalled == 0)
{
thread_cond_wait(&ices_config->event_pending_cond);
if (ices_config->shutdown)
{
LOG_INFO0 ("metadata thread shutting down");
return NULL;
}
LOG_DEBUG0("meta thread wakeup");
}
metadata_update_signalled = 0;
file = fopen(ices_config->metadata_filename, "r");
if(!file) {
LOG_WARN2("Failed to open file \"%s\" for metadata update: %s",
ices_config->metadata_filename, strerror(errno));
continue;
}
LOG_DEBUG1("reading metadata from \"%s\"", ices_config->metadata_filename);
while(fgets(buf, 1024, file))
{
if(buf[0] == '\n')
break;
else
{
if(buf[strlen(buf)-1] == '\n')
buf[strlen(buf)-1] = 0;
md = realloc(md, (comments+2)*sizeof(char *));
md[comments] = malloc(strlen(buf)+1);
memcpy(md[comments], buf, strlen(buf)+1);
comments++;
LOG_INFO2 ("tag %d is %s", comments, buf);
}
}
fclose(file);
if(md) /* Don't update if there's nothing there */
{
md[comments]=0;
/* Now, let's actually use the new data */
LOG_INFO0("Updating metadata");
mod->handle_event(mod,EVENT_METADATAUPDATE,md);
}
else
LOG_INFO0("No metadata has been read");
}
}
void *metadata_thread_stdin(void *arg)
{
char buf[1024];
input_module_t *mod = arg;
if (ices_config->background)
{
LOG_INFO0("Metadata thread shutting down, tried to use "
"stdin from background");
return NULL;
}
while(1)
{
char **md = NULL;
int comments = 0;
int wait_for_data = 1;
/* wait for data */
while (wait_for_data)
{
struct timeval t;
fd_set fds;
FD_ZERO (&fds);
FD_SET (0, &fds);
t.tv_sec = 0;
t.tv_usec = 150;
switch (select (1, &fds, NULL, NULL, &t))
{
case 1:
wait_for_data = 0;
case 0:
break;
default:
if (errno != EAGAIN)
{
LOG_INFO1 ("shutting down thread (%d)", errno);
return NULL; /* problem get out quick */
}
break;
}
if (ices_config->shutdown)
{
LOG_INFO0 ("metadata thread shutting down");
return NULL;
}
}
while(fgets(buf, 1024, stdin))
{
if(buf[0] == '\n')
break;
else
{
if(buf[strlen(buf)-1] == '\n')
buf[strlen(buf)-1] = 0;
md = realloc(md, (comments+2)*sizeof(char *));
md[comments] = malloc(strlen(buf)+1);
memcpy(md[comments], buf, strlen(buf)+1);
comments++;
}
}
if(md) /* Don't update if there's nothing there */
{
md[comments]=0;
/* Now, let's actually use the new data */
LOG_INFO0("Updating metadata");
mod->handle_event(mod,EVENT_METADATAUPDATE,md);
}
}
}
int main(int argc, char **argv)
{
char logpath[FILENAME_MAX];
int log;
if (argc != 2)
{
fprintf(stderr, PACKAGE_STRING "\n"
" (c) Copyright 2001-2004 The IceS Development Team <*****@*****.**>\n"
" Michael Smith <*****@*****.**>\n"
" Karl Heyes <*****@*****.**>\n"
" and others\n"
"\n"
"Usage: \"ices config.xml\"\n");
return 1;
}
config_initialize();
if (config_read(argv[1]) <= 0)
{
fprintf(stderr, "Failed to read config file \"%s\"\n", argv[1]);
goto fail;
}
if (ices_config->background)
{
#ifndef _WIN32
int ret = 0;
/* Start up new session, to lose old session and process group */
switch (fork())
{
case 0: break; /* child continues */
case -1: perror ("fork"); ret = -1;
default:
exit (ret);
}
/* Disassociate process group and controlling terminal */
setsid();
/* Become a NON-session leader so that a */
/* control terminal can't be reacquired */
switch (fork())
{
case 0: break; /* child continues */
case -1: perror ("fork"); ret = -1;
default:
exit (ret);
}
#else
FreeConsole();
#endif
}
log_initialize();
thread_initialize();
shout_init();
encode_init();
#ifndef _WIN32
signals_setup();
#endif
snprintf(logpath, FILENAME_MAX, "%s/%s", ices_config->logpath,
ices_config->logfile);
if(ices_config->log_stderr)
log = log_open_file(stderr);
else
{
log = log_open(logpath);
if (log < 0)
fprintf (stderr, "unable to open log %s\n", logpath);
log_set_trigger (log, ices_config->logsize);
}
/* Set the log level, if requested - defaults to 2 (WARN) otherwise */
if (ices_config->loglevel)
log_set_level(log, ices_config->loglevel);
ices_config->log_id = log;
LOG_INFO0(PACKAGE_STRING " started...");
if (ices_config->pidfile != NULL)
{
FILE *f = fopen (ices_config->pidfile, "w");
if (f)
{
fprintf (f, "%i", getpid());
fclose (f);
}
else
{
LOG_WARN1("pidfile \"%s\" cannot be written to", ices_config->pidfile);
xmlFree (ices_config->pidfile);
ices_config->pidfile = NULL;
}
}
/* Start the core streaming loop */
input_loop();
if (ices_config->pidfile)
remove (ices_config->pidfile);
LOG_INFO0("Shutdown complete");
log_close(log);
fail:
encode_close();
shout_shutdown();
config_shutdown();
thread_shutdown();
log_shutdown();
return 0;
}
