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Finally we're on to a proper jack setup, with a specialized bin and elements that can only go in a jack bin. I had to...

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Original commit message from CVS:
Finally we're on to a proper jack setup, with a specialized bin and elements
that can only go in a jack bin. I had to fix the parser first to do this, but
to run it, the syntax is like so:

gst-launch jackbin.( filesrc ! mad ! jacksink )

But of course it's not fully functional yet. Sigh.
This commit is contained in:
Andy Wingo 2002-04-16 17:14:05 +00:00 committed by Tim-Philipp Müller
parent a9161e1882
commit 6ef5499ab5
4 changed files with 311 additions and 187 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
ext/jack/Makefile.am
View file

@ -2,7 +2,7 @@ plugindir = $(libdir)/gst
plugin_LTLIBRARIES = libgstjack.la
libgstjack_la_SOURCES = gstjack.c
libgstjack_la_SOURCES = gstjack.c gstjackbin.c
libgstjack_la_CFLAGS = $(GST_CFLAGS) $(JACK_CFLAGS)
libgstjack_la_LIBADD = $(JACK_LIBS)
libgstjack_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)

192
ext/jack/gstjack.c
View file

@ -35,6 +35,15 @@
*/
static GstElementDetails gst_jack_bin_details = {
"Jack Bin",
"Bin/Audio",
"Jack processing bin: see README for more info",
VERSION,
"Andy Wingo <wingo@pobox.com>",
"(C) 2002 "
};
static GstElementDetails gst_jack_sink_details = {
"Jack Sink",
"Sink/Audio",
@ -54,7 +63,7 @@ static GstElementDetails gst_jack_src_details = {
};
static GstElement *parent_class = NULL;
static GstElementClass *parent_class = NULL;
static void gst_jack_init(GstJack *this);
static void gst_jack_class_init(GstJackClass *klass);
@ -72,12 +81,6 @@ static GstPadConnectReturn gst_jack_connect (GstPad *pad, GstCaps *caps);
static void gst_jack_loop (GstElement *element);
/* jack callbacks */
static int process (nframes_t nframes, void *arg);
static int buffer_size (nframes_t nframes, void *arg);
static int sample_rate (nframes_t nframes, void *arg);
static void shutdown (void *arg);
enum {
ARG_0,
@ -229,12 +232,12 @@ gst_jack_request_new_pad (GstElement *element, GstPadTemplate *templ, const gcha
g_return_val_if_fail ((this = GST_JACK (element)), NULL);
if (!this->client)
if (!this->bin)
pad_list = &this->pads;
else if (this->direction == GST_PAD_SRC)
pad_list = &this->client->src_pads;
pad_list = &this->bin->src_pads;
else
pad_list = &this->client->src_pads;
pad_list = &this->bin->src_pads;
if (name) {
l = *pad_list;
@ -303,63 +306,31 @@ static GstElementStateReturn
gst_jack_change_state (GstElement *element)
{
GstJack *this;
GstJackClient *client;
GstBin *bin;
GList *l = NULL, **pads;
enum JackPortFlags flags;
GstJackPad *pad;
g_return_val_if_fail (element != NULL, FALSE);
this = GST_JACK (element);
client = this->client;
switch (GST_STATE_PENDING (element)) {
case GST_STATE_NULL:
g_message ("jack: NULL state");
if (client) {
g_message ("jack: closing client");
jack_client_close (client->client);
}
g_message ("jack client %s: NULL", GST_OBJECT_NAME (GST_OBJECT (this)));
break;
case GST_STATE_READY:
g_message ("jack: READY");
if (!this->client) {
if (!(bin = gst_element_get_managing_bin (element))) {
g_warning ("jack element %s cannot be brought to READY state without a managing bin",
g_message ("jack client %s: READY", GST_OBJECT_NAME (GST_OBJECT (this)));
if (!this->bin) {
if (!(this->bin = (GstJackBin*)gst_element_get_managing_bin (element))
|| !GST_IS_JACK_BIN (this->bin)) {
this->bin = NULL;
g_warning ("jack element %s needs to be contained in a jack bin.",
GST_OBJECT_NAME (GST_OBJECT (element)));
return GST_STATE_FAILURE;
}
client = g_object_get_data (G_OBJECT (bin), "gst-jack-client");
if (!client) {
g_message ("jack: making new client");
client = g_new0 (GstJackClient, 1);
if (!(client->client = jack_client_new ("gst-jack"))) {
g_warning ("jack server not running?");
return GST_STATE_FAILURE;
}
jack_set_process_callback (client->client, process, client);
jack_set_buffer_size_callback (client->client, buffer_size, client);
jack_set_sample_rate_callback (client->client, sample_rate, client);
jack_on_shutdown (client->client, shutdown, client);
client->refcount = 1;
g_object_set_data (G_OBJECT (bin), "gst-jack-client", client);
client->manager = bin;
GST_FLAG_SET (GST_OBJECT (bin), GST_BIN_SELF_SCHEDULABLE);
} else {
g_message ("jack: refcounting existing client");
client->refcount++;
}
this->client = client;
/* fixme: verify that all names are unique */
l = this->pads;
pads = (this->direction == GST_PAD_SRC) ? &client->src_pads : &client->sink_pads;
pads = (this->direction == GST_PAD_SRC) ? &this->bin->src_pads : &this->bin->sink_pads;
while (l) {
pad = GST_JACK_PAD (l);
g_message ("jack: appending pad %s:%s to list", pad->name, pad->peer_name);
@ -367,60 +338,13 @@ gst_jack_change_state (GstElement *element)
l = g_list_next (l);
}
}
/* fixme: there are a *lot* of problems here */
if (GST_FLAG_IS_SET (GST_OBJECT (this), GST_JACK_OPEN)) {
l = this->pads;
while (l) {
g_message ("jack: unregistering pad %s:%s", GST_JACK_PAD (l)->name, GST_JACK_PAD (l)->peer_name);
jack_port_unregister (client->client, GST_JACK_PAD (l)->port);
l = g_list_next (l);
}
GST_FLAG_UNSET (GST_OBJECT (this), GST_JACK_OPEN);
}
break;
case GST_STATE_PAUSED:
g_message ("jack: PAUSED");
g_assert (client);
if (!GST_FLAG_IS_SET (GST_OBJECT (this), GST_JACK_OPEN)) {
l = this->pads;
while (l) {
pad = GST_JACK_PAD (l);
if (this->direction == GST_PAD_SINK)
flags = JackPortIsOutput;
else
flags = JackPortIsInput;
g_message ("jack: registering pad %s:%s", pad->name, pad->peer_name);
pad->port = jack_port_register (client->client, pad->name, JACK_DEFAULT_AUDIO_TYPE, flags, 0);
g_message ("connecting gst jack port %s to jack port %s", jack_port_name (pad->port), pad->peer_name);
if (jack_connect (client->client, jack_port_name (pad->port), pad->peer_name)) {
g_warning ("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 ("jack: setting OPEN flag");
GST_FLAG_SET (GST_OBJECT (this), GST_JACK_OPEN);
}
if (GST_FLAG_IS_SET (GST_OBJECT (this), GST_JACK_ACTIVE)) {
g_message ("jack: deactivating client");
jack_deactivate (client->client);
GST_FLAG_UNSET (GST_OBJECT (this), GST_JACK_ACTIVE);
}
g_message ("jack client %s: PAUSED", GST_OBJECT_NAME (GST_OBJECT (this)));
break;
case GST_STATE_PLAYING:
g_message ("jack: PLAYING");
if (!GST_FLAG_IS_SET (GST_OBJECT (this), GST_JACK_ACTIVE)) {
g_message ("jack: activating client");
jack_activate (client->client);
GST_FLAG_SET (GST_OBJECT (this), GST_JACK_ACTIVE);
}
g_message ("jack client %s: PLAYING", GST_OBJECT_NAME (GST_OBJECT (this)));
break;
}
@ -444,7 +368,7 @@ gst_jack_connect (GstPad *pad, GstCaps *caps)
if (GST_CAPS_IS_FIXED (caps)) {
gst_caps_get_int (caps, "rate", &rate);
if (this->client && rate != this->client->rate)
if (this->bin && rate != this->bin->rate)
return GST_PAD_CONNECT_REFUSED;
return GST_PAD_CONNECT_OK;
@ -468,7 +392,7 @@ gst_jack_loop (GstElement *element)
this = GST_JACK (element);
g_return_if_fail(this != NULL);
len = this->client->nframes * sizeof (sample_t);
len = this->bin->nframes * sizeof (sample_t);
do {
pads = this->pads;
@ -515,69 +439,6 @@ gst_jack_loop (GstElement *element)
} while (TRUE);
}
/* jack callbacks */
static int
process (nframes_t nframes, void *arg)
{
GstJackClient *client = (GstJackClient*) arg;
GstJackPad *pad;
GList *l;
g_assert (client);
g_message ("jack: process()");
l = client->src_pads;
while (l) {
pad = GST_JACK_PAD (l);
pad->data = jack_port_get_buffer (pad->port, nframes);
l = g_list_next (l);
}
l = client->sink_pads;
while (l) {
pad = GST_JACK_PAD (l);
pad->data = jack_port_get_buffer (pad->port, nframes);
l = g_list_next (l);
}
client->nframes = nframes;
if (!gst_bin_iterate (client->manager)) {
g_warning ("bin failed to iterate");
return -1;
}
/* that's all folks */
return 0;
}
static int
buffer_size (nframes_t nframes, void *arg)
{
printf ("the maximum buffer size is now %lu\n", nframes);
return 0;
}
static int
sample_rate (nframes_t nframes, void *arg)
{
GstJackClient *client = (GstJackClient*) arg;
printf ("the sample rate is now %lu/sec\n", nframes);
client->rate = nframes;
return 0;
}
static void
shutdown (void *arg)
{
GstJackClient *client = (GstJackClient*) arg;
printf ("shutdown %p\n", client);
/* gst_element_set_state (GST_ELEMENT (client->manager), GST_STATE_READY); */
}
static gboolean
plugin_init (GModule *module, GstPlugin *plugin)
{
@ -588,6 +449,9 @@ plugin_init (GModule *module, GstPlugin *plugin)
return FALSE;
}
factory = gst_element_factory_new ("jackbin", GST_TYPE_JACK_BIN, &gst_jack_bin_details);
g_return_val_if_fail (factory != NULL, FALSE);
factory = gst_element_factory_new ("jacksrc", GST_TYPE_JACK_SRC, &gst_jack_src_details);
g_return_val_if_fail (factory != NULL, FALSE);
gst_element_factory_add_pad_template (factory, gst_jack_src_request_pad_factory());

54
ext/jack/gstjack.h
View file

@ -42,11 +42,19 @@
#define GST_IS_JACK_SRC_CLASS(klass) G_TYPE_CHECK_CLASS_TYPE(klass, GST_TYPE_JACK_SRC)
#define GST_TYPE_JACK_SRC gst_jack_src_get_type()
#define GST_JACK_BIN(obj) G_TYPE_CHECK_INSTANCE_CAST(obj, GST_TYPE_JACK_BIN, GstJackBin)
#define GST_JACK_BIN_CLASS(klass) G_TYPE_CHECK_CLASS_CAST(klass, GST_TYPE_JACK_BIN, GstJackClass)
#define GST_IS_JACK_BIN(obj) G_TYPE_CHECK_INSTANCE_TYPE(obj, GST_TYPE_JACK_BIN)
#define GST_IS_JACK_BIN_CLASS(klass) G_TYPE_CHECK_CLASS_TYPE(klass, GST_TYPE_JACK_BIN)
#define GST_TYPE_JACK_BIN gst_jack_bin_get_type()
#define GST_JACK_PAD(l) ((GstJackPad*)l->data) /* l is a GList */
typedef struct _GstJack GstJack;
typedef struct _GstJackClass GstJackClass;
typedef struct _GstJackBin GstJackBin;
typedef struct _GstJackBinClass GstJackBinClass;
typedef GstJack GstJackSink;
typedef GstJackClass GstJackSinkClass;
typedef GstJack GstJackSrc;
@ -54,9 +62,9 @@ typedef GstJackClass GstJackSrcClass;
enum {
GST_JACK_OPEN = GST_ELEMENT_FLAG_LAST,
GST_JACK_OPEN = GST_BIN_FLAG_LAST,
GST_JACK_ACTIVE,
GST_JACK_FLAG_LAST = GST_ELEMENT_FLAG_LAST + 3,
GST_JACK_FLAG_LAST = GST_BIN_FLAG_LAST + 3,
};
@ -69,24 +77,6 @@ typedef struct {
jack_port_t *port;
} GstJackPad;
typedef struct {
GstBin *manager;
jack_client_t *client;
gint default_new_port_number;
/* lists of GstJackPads */
GList *sink_pads;
GList *src_pads;
gchar *client_name;
guint rate;
nframes_t nframes;
guint refcount;
} GstJackClient;
struct _GstJack {
GstElement element;
@ -98,16 +88,36 @@ struct _GstJack {
gchar *port_name_prefix;
/* there is exactly one client per managing bin */
GstJackClient *client;
GstJackBin *bin;
};
struct _GstJackClass {
GstElementClass parent_class;
};
struct _GstJackBin {
GstBin bin;
jack_client_t *client;
gint default_new_port_number;
/* lists of GstJackPads */
GList *sink_pads;
GList *src_pads;
gchar *client_name;
guint rate;
nframes_t nframes;
};
struct _GstJackBinClass {
GstBinClass parent_class;
};
GType gst_jack_get_type (void);
GType gst_jack_bin_get_type (void);
GType gst_jack_sink_get_type (void);
GType gst_jack_src_get_type (void);

250
ext/jack/gstjackbin.c Normal file
View file

@ -0,0 +1,250 @@
/*
Copyright (C) 2002 Andy Wingo <wingo@pobox.com>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <stdlib.h>
#include "gstjack.h"
static GstBinClass *parent_class = NULL;
static void gst_jack_bin_init(GstJack *this);
static void gst_jack_bin_class_init(GstJackClass *klass);
static GstElementStateReturn gst_jack_bin_change_state(GstElement *element);
/* jack callbacks */
static int process (nframes_t nframes, void *arg);
static int buffer_size (nframes_t nframes, void *arg);
static int sample_rate (nframes_t nframes, void *arg);
static void shutdown (void *arg);
GType
gst_jack_bin_get_type (void)
{
static GType jack_bin_type = 0;
if (!jack_bin_type) {
static const GTypeInfo jack_bin_info = {
sizeof(GstJackBinClass),
NULL,
NULL,
(GClassInitFunc)gst_jack_bin_class_init,
NULL,
NULL,
sizeof(GstJackBin),
0,
(GInstanceInitFunc)gst_jack_bin_init,
};
jack_bin_type = g_type_register_static (GST_TYPE_BIN, "GstJackBin", &jack_bin_info, 0);
}
return jack_bin_type;
}
static void
gst_jack_bin_class_init(GstJackClass *klass)
{
GObjectClass *object_class;
GstElementClass *element_class;
object_class = (GObjectClass *)klass;
element_class = (GstElementClass *)klass;
parent_class = g_type_class_ref(GST_TYPE_BIN);
element_class->change_state = gst_jack_bin_change_state;
}
static void
gst_jack_bin_init(GstJack *this)
{
}
static GstElementStateReturn
gst_jack_bin_change_state (GstElement *element)
{
GstJackBin *this;
GList *l = NULL;
GstJackPad *pad;
g_return_val_if_fail (element != NULL, FALSE);
this = GST_JACK_BIN (element);
switch (GST_STATE_PENDING (element)) {
case GST_STATE_NULL:
g_message ("jack: NULL state");
if (this->client) {
g_message ("jack: closing client");
jack_client_close (this->client);
}
break;
case GST_STATE_READY:
g_message ("jack: READY");
if (!this->client) {
if (!(this->client = jack_client_new ("gst-jack"))) {
g_warning ("jack server not running?");
return GST_STATE_FAILURE;
}
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);
}
/* fixme: there are a *lot* of problems here */
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_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_port_unregister (this->client, GST_JACK_PAD (l)->port);
l = g_list_next (l);
}
GST_FLAG_UNSET (GST_OBJECT (this), GST_JACK_OPEN);
}
break;
case GST_STATE_PAUSED:
g_message ("jack: 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 pad %s:%s", pad->name, pad->peer_name);
pad->port = jack_port_register (this->client, pad->name, JACK_DEFAULT_AUDIO_TYPE, JackPortIsInput, 0);
g_message ("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 ("could not connect %s and %s", pad->peer_name, jack_port_name (pad->port));
return GST_STATE_FAILURE;
}
l = g_list_next (l);
}
l = this->sink_pads;
while (l) {
pad = GST_JACK_PAD (l);
g_message ("jack: registering pad %s:%s", pad->name, pad->peer_name);
pad->port = jack_port_register (this->client, pad->name, JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, 0);
g_message ("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 ("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 ("jack: setting OPEN flag");
GST_FLAG_SET (GST_OBJECT (this), GST_JACK_OPEN);
}
if (GST_FLAG_IS_SET (GST_OBJECT (this), GST_JACK_ACTIVE)) {
g_message ("jack: deactivating client");
jack_deactivate (this->client);
GST_FLAG_UNSET (GST_OBJECT (this), GST_JACK_ACTIVE);
}
break;
case GST_STATE_PLAYING:
g_message ("jack: PLAYING");
if (!GST_FLAG_IS_SET (GST_OBJECT (this), GST_JACK_ACTIVE)) {
g_message ("jack: activating client");
jack_activate (this->client);
GST_FLAG_SET (GST_OBJECT (this), GST_JACK_ACTIVE);
}
break;
}
g_message ("jack: state change finished");
if (GST_ELEMENT_CLASS (parent_class)->change_state)
return GST_ELEMENT_CLASS (parent_class)->change_state (element);
return GST_STATE_SUCCESS;
}
/* jack callbacks */
/* keep in mind that these run in another thread, mm-kay? */
static int
process (nframes_t nframes, void *arg)
{
GstJackBin *bin = (GstJackBin*) arg;
GstJackPad *pad;
GList *l;
g_assert (bin);
g_message ("jack: process()");
l = bin->src_pads;
while (l) {
pad = GST_JACK_PAD (l);
pad->data = jack_port_get_buffer (pad->port, nframes);
l = g_list_next (l);
}
l = bin->sink_pads;
while (l) {
pad = GST_JACK_PAD (l);
pad->data = jack_port_get_buffer (pad->port, nframes);
l = g_list_next (l);
}
bin->nframes = nframes;
if (!gst_bin_iterate (GST_BIN_CAST (bin))) {
g_warning ("bin failed to iterate");
return -1;
}
/* that's all folks */
return 0;
}
static int
buffer_size (nframes_t nframes, void *arg)
{
printf ("the maximum buffer size is now %lu\n", nframes);
return 0;
}
static int
sample_rate (nframes_t nframes, void *arg)
{
GstJackBin *bin = (GstJackBin*) arg;
printf ("the sample rate is now %lu/sec\n", nframes);
bin->rate = nframes;
return 0;
}
static void
shutdown (void *arg)
{
/* GstJackClient *client = (GstJackClient*) arg; */
printf ("shutdown %p\n", arg);
/* gst_element_set_state (GST_ELEMENT (client->manager), GST_STATE_READY); */
}