static void
jack_shutdown_cb (void *arg)
{
GstJackAudioConnection *conn = (GstJackAudioConnection *) arg;
GList *walk;
GST_DEBUG ("disconnect client %s from server %s", conn->id,
GST_STR_NULL (conn->server));
g_mutex_lock (&conn->lock);
for (walk = conn->src_clients; walk; walk = g_list_next (walk)) {
GstJackAudioClient *client = (GstJackAudioClient *) walk->data;
client->server_down = TRUE;
g_cond_signal (&conn->flush_cond);
if (client->shutdown)
client->shutdown (client->user_data);
}
for (walk = conn->sink_clients; walk; walk = g_list_next (walk)) {
GstJackAudioClient *client = (GstJackAudioClient *) walk->data;
client->server_down = TRUE;
g_cond_signal (&conn->flush_cond);
if (client->shutdown)
client->shutdown (client->user_data);
}
g_mutex_unlock (&conn->lock);
}
static int
jack_process_cb (jack_nframes_t nframes, void *arg)
{
GstJackAudioConnection *conn = (GstJackAudioConnection *) arg;
GList *walk;
int res = 0;
g_mutex_lock (conn->lock);
/* call sources first, then sinks. Sources will either push data into the
* ringbuffer of the sinks, which will then pull the data out of it, or
* sinks will pull the data from the sources. */
for (walk = conn->src_clients; walk; walk = g_list_next (walk)) {
GstJackAudioClient *client = (GstJackAudioClient *) walk->data;
/* only call active clients */
if ((client->active || client->deactivate) && client->process) {
res = client->process (nframes, client->user_data);
if (client->deactivate) {
client->deactivate = FALSE;
g_cond_signal (conn->flush_cond);
}
}
}
for (walk = conn->sink_clients; walk; walk = g_list_next (walk)) {
GstJackAudioClient *client = (GstJackAudioClient *) walk->data;
/* only call active clients */
if ((client->active || client->deactivate) && client->process) {
res = client->process (nframes, client->user_data);
if (client->deactivate) {
client->deactivate = FALSE;
g_cond_signal (conn->flush_cond);
}
}
}
g_mutex_unlock (conn->lock);
return res;
}
static int
jack_process_cb (jack_nframes_t nframes, void *arg)
{
GstJackAudioConnection *conn = (GstJackAudioConnection *) arg;
GList *walk;
int res = 0;
jack_transport_state_t ts = jack_transport_query (conn->client, NULL);
if (ts != conn->cur_ts) {
conn->cur_ts = ts;
switch (ts) {
case JackTransportStopped:
GST_DEBUG ("transport state is 'stopped'");
conn->transport_state = GST_STATE_PAUSED;
break;
case JackTransportStarting:
GST_DEBUG ("transport state is 'starting'");
conn->transport_state = GST_STATE_READY;
break;
case JackTransportRolling:
GST_DEBUG ("transport state is 'rolling'");
conn->transport_state = GST_STATE_PLAYING;
break;
default:
break;
}
GST_DEBUG ("num of clients: src=%d, sink=%d",
g_list_length (conn->src_clients), g_list_length (conn->sink_clients));
}
g_mutex_lock (&conn->lock);
/* call sources first, then sinks. Sources will either push data into the
* ringbuffer of the sinks, which will then pull the data out of it, or
* sinks will pull the data from the sources. */
for (walk = conn->src_clients; walk; walk = g_list_next (walk)) {
GstJackAudioClient *client = (GstJackAudioClient *) walk->data;
/* only call active clients */
if ((client->active || client->deactivate) && client->process) {
res = client->process (nframes, client->user_data);
if (client->deactivate) {
client->deactivate = FALSE;
g_cond_signal (&conn->flush_cond);
}
}
}
for (walk = conn->sink_clients; walk; walk = g_list_next (walk)) {
GstJackAudioClient *client = (GstJackAudioClient *) walk->data;
/* only call active clients */
if ((client->active || client->deactivate) && client->process) {
res = client->process (nframes, client->user_data);
if (client->deactivate) {
client->deactivate = FALSE;
g_cond_signal (&conn->flush_cond);
}
}
}
/* handle transport state requisition, do sinks first, stop after the first
* element that handled it */
if (conn->transport_state != GST_STATE_VOID_PENDING) {
for (walk = conn->sink_clients; walk; walk = g_list_next (walk)) {
if (jack_handle_transport_change ((GstJackAudioClient *) walk->data,
conn->transport_state)) {
conn->transport_state = GST_STATE_VOID_PENDING;
break;
}
}
}
if (conn->transport_state != GST_STATE_VOID_PENDING) {
for (walk = conn->src_clients; walk; walk = g_list_next (walk)) {
if (jack_handle_transport_change ((GstJackAudioClient *) walk->data,
conn->transport_state)) {
conn->transport_state = GST_STATE_VOID_PENDING;
break;
}
}
}
g_mutex_unlock (&conn->lock);
return res;
}
