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-rw-r--r--ext/jack/gstjackbin.c119
1 files changed, 53 insertions, 66 deletions
diff --git a/ext/jack/gstjackbin.c b/ext/jack/gstjackbin.c
index 1ba90507..76c7e075 100644
--- a/ext/jack/gstjackbin.c
+++ b/ext/jack/gstjackbin.c
@@ -19,6 +19,7 @@
#include <stdlib.h>
#include <string.h>
+#include <signal.h>
#include "gstjack.h"
@@ -31,17 +32,21 @@ static GstElementStateReturn gst_jack_bin_change_state(GstElement *element);
/* jack callbacks */
static int process (jack_nframes_t nframes, void *arg);
-static int buffer_size (jack_nframes_t nframes, void *arg);
static int sample_rate (jack_nframes_t nframes, void *arg);
static void shutdown (void *arg);
+static void sighup_handler (int sig);
+static GstJackBin *_jackbin = NULL;
+static gboolean watchdog_please_set_the_jackbin_to_ready = FALSE;
+
+/* fixme: we need a watchdog thread to see if we have received a SIGHUP, and if
+ * so set the state of the bin to READY. */
GType
gst_jack_bin_get_type (void)
{
static GType jack_bin_type = 0;
-
- if (!jack_bin_type) {
+if (!jack_bin_type) {
static const GTypeInfo jack_bin_info = {
sizeof(GstJackBinClass),
NULL,
@@ -83,11 +88,6 @@ gst_jack_bin_init(GstJackBin *this)
/* make a new scheduler and associate it with the bin */
gst_scheduler_factory_make (NULL, GST_ELEMENT (this));
-
- this->cond = g_cond_new ();
- this->lock = g_mutex_new ();
- g_mutex_lock (this->lock);
- this->sched_setup = FALSE;
}
static GstElementStateReturn
@@ -102,27 +102,36 @@ gst_jack_bin_change_state (GstElement *element)
switch (GST_STATE_PENDING (element)) {
case GST_STATE_NULL:
- g_message ("jackbin: NULL state");
+ JACK_DEBUG ("jackbin: NULL state");
if (this->client) {
- g_message ("jack: closing client");
+ JACK_DEBUG ("jackbin: closing client");
jack_client_close (this->client);
this->client = NULL;
}
+ if (_jackbin)
+ signal (SIGHUP, SIG_DFL);
+ _jackbin = NULL;
+
if (GST_ELEMENT_CLASS (parent_class)->change_state)
return GST_ELEMENT_CLASS (parent_class)->change_state (element);
break;
case GST_STATE_READY:
- g_message ("jackbin: READY");
+ JACK_DEBUG ("jackbin: READY");
+
+ _jackbin = this;
+ signal (SIGHUP, sighup_handler);
+
if (!this->client) {
if (!(this->client = jack_client_new ("gst-jack"))) {
g_warning ("jack server not running?");
return GST_STATE_FAILURE;
}
+ gst_scheduler_setup (GST_ELEMENT_SCHED (this));
+
jack_set_process_callback (this->client, process, this);
- jack_set_buffer_size_callback (this->client, buffer_size, this);
jack_set_sample_rate_callback (this->client, sample_rate, this);
jack_on_shutdown (this->client, shutdown, this);
}
@@ -130,20 +139,20 @@ gst_jack_bin_change_state (GstElement *element)
if (GST_FLAG_IS_SET (GST_OBJECT (this), GST_JACK_OPEN)) {
l = this->src_pads;
while (l) {
- g_message ("jack: unregistering pad %s:%s", GST_JACK_PAD (l)->name, GST_JACK_PAD (l)->peer_name);
+ JACK_DEBUG ("jackbin: unregistering pad %s:%s", GST_JACK_PAD (l)->name, GST_JACK_PAD (l)->peer_name);
jack_port_unregister (this->client, GST_JACK_PAD (l)->port);
l = g_list_next (l);
}
l = this->sink_pads;
while (l) {
- g_message ("jack: unregistering pad %s:%s", GST_JACK_PAD (l)->name, GST_JACK_PAD (l)->peer_name);
+ JACK_DEBUG ("jackbin: unregistering pad %s:%s", GST_JACK_PAD (l)->name, GST_JACK_PAD (l)->peer_name);
jack_port_unregister (this->client, GST_JACK_PAD (l)->port);
l = g_list_next (l);
}
GST_FLAG_UNSET (GST_OBJECT (this), GST_JACK_OPEN);
if (GST_FLAG_IS_SET (GST_OBJECT (this), GST_JACK_ACTIVE)) {
- g_message ("jack: deactivating client");
+ JACK_DEBUG ("jackbin: deactivating client");
jack_deactivate (this->client);
GST_FLAG_UNSET (GST_OBJECT (this), GST_JACK_ACTIVE);
}
@@ -154,39 +163,37 @@ gst_jack_bin_change_state (GstElement *element)
break;
case GST_STATE_PAUSED:
- g_message ("jackbin: PAUSED");
+ JACK_DEBUG ("jackbin: PAUSED");
if (!GST_FLAG_IS_SET (GST_OBJECT (this), GST_JACK_OPEN)) {
l = this->src_pads;
while (l) {
pad = GST_JACK_PAD (l);
- g_message ("jack: registering input port %s (peer %s)", pad->name, pad->peer_name);
+ JACK_DEBUG ("jackbin: registering input port %s (peer %s)", pad->name, pad->peer_name);
pad->port = jack_port_register (this->client, pad->name, JACK_DEFAULT_AUDIO_TYPE, JackPortIsInput|JackPortIsTerminal, 0);
l = g_list_next (l);
}
l = this->sink_pads;
while (l) {
pad = GST_JACK_PAD (l);
- g_message ("jack: registering output port %s (peer %s)", pad->name, pad->peer_name);
+ JACK_DEBUG ("jackbin: registering output port %s (peer %s)", pad->name, pad->peer_name);
pad->port = jack_port_register (this->client, pad->name, JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput|JackPortIsTerminal, 0);
l = g_list_next (l);
}
/* must activate before connecting */
if (!GST_FLAG_IS_SET (GST_OBJECT (this), GST_JACK_ACTIVE)) {
- g_message ("jack: activating client");
+ JACK_DEBUG ("jackbin: activating client");
jack_activate (this->client);
GST_FLAG_SET (GST_OBJECT (this), GST_JACK_ACTIVE);
}
- g_cond_wait (this->cond, this->lock);
-
l = this->src_pads;
while (l) {
pad = GST_JACK_PAD (l);
- g_message ("connecting jack port %s to gst jack port %s", pad->peer_name, jack_port_name (pad->port));
+ JACK_DEBUG ("connecting jack port %s to gst jack port %s", pad->peer_name, jack_port_name (pad->port));
if (jack_connect (this->client, pad->peer_name, jack_port_name (pad->port))) {
- g_warning ("jack: could not connect %s and %s", pad->peer_name, jack_port_name (pad->port));
+ g_warning ("jackbin: could not connect %s and %s", pad->peer_name, jack_port_name (pad->port));
return GST_STATE_FAILURE;
}
l = g_list_next (l);
@@ -194,29 +201,34 @@ gst_jack_bin_change_state (GstElement *element)
l = this->sink_pads;
while (l) {
pad = GST_JACK_PAD (l);
- g_message ("connecting gst jack port %s to jack port %s", jack_port_name (pad->port), pad->peer_name);
+ JACK_DEBUG ("connecting gst jack port %s to jack port %s", jack_port_name (pad->port), pad->peer_name);
if (jack_connect (this->client, jack_port_name (pad->port), pad->peer_name)) {
- g_warning ("jack: could not connect %s and %s", pad->peer_name, jack_port_name (pad->port));
+ g_warning ("jackbin: could not connect %s and %s", pad->peer_name, jack_port_name (pad->port));
return GST_STATE_FAILURE;
}
l = g_list_next (l);
}
- g_message ("jackbin: setting OPEN flag");
+ JACK_DEBUG ("jackbin: setting OPEN flag");
GST_FLAG_SET (GST_OBJECT (this), GST_JACK_OPEN);
+
+ if (GST_ELEMENT_CLASS (parent_class)->change_state)
+ return GST_ELEMENT_CLASS (parent_class)->change_state (element);
} else {
- g_cond_wait (this->cond, this->lock);
+ if (GST_ELEMENT_CLASS (parent_class)->change_state)
+ return GST_ELEMENT_CLASS (parent_class)->change_state (element);
}
break;
case GST_STATE_PLAYING:
- g_message ("jack: PLAYING");
+ JACK_DEBUG ("jackbin: PLAYING");
- g_cond_wait (this->cond, this->lock);
+ if (GST_ELEMENT_CLASS (parent_class)->change_state)
+ return GST_ELEMENT_CLASS (parent_class)->change_state (element);
break;
}
- g_message ("jack: state change finished");
+ JACK_DEBUG ("jackbin: state change finished");
return GST_STATE_SUCCESS;
}
@@ -234,37 +246,13 @@ process (jack_nframes_t nframes, void *arg)
g_assert (bin);
- g_message ("jack: process()");
-
- if (GST_STATE_PENDING (bin) != GST_STATE_VOID_PENDING) {
- g_message ("jackbin: doing state change from %s to %s",
- gst_element_state_get_name (GST_STATE (bin)),
- gst_element_state_get_name (GST_STATE_PENDING (bin)));
-
- /* FIXME: this breaks ultra-low latency... */
- g_mutex_lock (bin->lock);
-
- switch (GST_STATE_TRANSITION (bin)) {
- case GST_STATE_READY_TO_PAUSED:
- if (!bin->sched_setup) {
- gst_scheduler_setup (GST_ELEMENT_SCHED (bin));
- bin->sched_setup = TRUE;
- }
- break;
- }
-
- /* do the chaining up from within the jack thread, so that child
- elements are initialized from within the proper thread */
- if (GST_ELEMENT_CLASS (parent_class)->change_state)
- GST_ELEMENT_CLASS (parent_class)->change_state (GST_ELEMENT_CAST (bin));
-
- g_cond_signal (bin->cond);
- g_mutex_unlock (bin->lock);
- }
+ JACK_DEBUG ("jackbin: process()");
if (GST_STATE (bin) != GST_STATE_PLAYING) {
- g_message ("jackbin: bin is not PLAYING yet, returning");
+ JACK_DEBUG ("jackbin: bin is not PLAYING yet, returning");
return 0;
+ } else {
+ JACK_DEBUG ("jackbin: we are PLAYING, let's process()");
}
l = bin->src_pads;
@@ -283,6 +271,7 @@ process (jack_nframes_t nframes, void *arg)
bin->nframes = nframes;
+ JACK_DEBUG ("jackbin: iterating to process %ld frames of audio...", nframes);
if (!gst_bin_iterate (GST_BIN_CAST (bin))) {
g_warning ("bin failed to iterate");
return -1;
@@ -294,17 +283,10 @@ process (jack_nframes_t nframes, void *arg)
}
static int
-buffer_size (jack_nframes_t nframes, void *arg)
-{
- printf ("the maximum buffer size is now %lu\n", nframes);
- return 0;
-}
-
-static int
sample_rate (jack_nframes_t nframes, void *arg)
{
GstJackBin *bin = (GstJackBin*) arg;
- printf ("the sample rate is now %lu/sec\n", nframes);
+ JACK_DEBUG ("the sample rate is now %lu/sec\n", nframes);
bin->rate = nframes;
return 0;
}
@@ -317,3 +299,8 @@ shutdown (void *arg)
/* gst_element_set_state (GST_ELEMENT (client->manager), GST_STATE_READY); */
}
+static void sighup_handler (int sig)
+{
+ g_message ("got sighup, setting state to READY");
+ watchdog_please_set_the_jackbin_to_ready = TRUE;
+}
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-20 05:08:10 +0000