gstreamer/subprojects/gst-plugins-good/ext/jack/gstjack.c
Jordan Petridis 689dbd1fbe jack: Dynamically load libjack at runtime instead of linking
In order to provide build and provide the jack plugin with the prebuilt
binaries of gstreamer we distribute with releases, we can not depend
on an external dependency nor can we ship plugins linking to libraries
we don't provide.

We can also not provide jack ourselves, as it would likely cause a
mismatch with the jack daemon on the host.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4350>
2023-04-20 11:10:15 +03:00

122 lines
3.3 KiB
C

/* GStreamer Jack plugins
* Copyright (C) 2006 Wim Taymans <wim@fluendo.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstjack.h"
#include "gstjackloader.h"
GType
gst_jack_connect_get_type (void)
{
static gsize jack_connect_type = 0;
if (g_once_init_enter (&jack_connect_type)) {
static const GEnumValue jack_connect_enums[] = {
{GST_JACK_CONNECT_NONE,
"Don't automatically connect ports to physical ports", "none"},
{GST_JACK_CONNECT_AUTO,
"Automatically connect ports to physical ports", "auto"},
{GST_JACK_CONNECT_AUTO_FORCED,
"Automatically connect ports to as many physical ports as possible",
"auto-forced"},
{GST_JACK_CONNECT_EXPLICIT,
"Connect ports to explicitly requested physical ports",
"explicit"},
{0, NULL, NULL},
};
GType tmp = g_enum_register_static ("GstJackConnect", jack_connect_enums);
g_once_init_leave (&jack_connect_type, tmp);
}
return (GType) jack_connect_type;
}
GType
gst_jack_transport_get_type (void)
{
static gsize type = 0;
if (g_once_init_enter (&type)) {
static const GFlagsValue flag_values[] = {
{GST_JACK_TRANSPORT_MASTER,
"Start and stop transport with state changes", "master"},
{GST_JACK_TRANSPORT_SLAVE,
"Follow transport state changes", "slave"},
{0, NULL, NULL},
};
GType tmp = g_flags_register_static ("GstJackTransport", flag_values);
g_once_init_leave (&type, tmp);
}
return (GType) type;
}
static gpointer
gst_jack_client_copy (gpointer jclient)
{
return jclient;
}
static void
gst_jack_client_free (gpointer jclient)
{
return;
}
GType
gst_jack_client_get_type (void)
{
static gsize jack_client_type = 0;
if (g_once_init_enter (&jack_client_type)) {
/* hackish, but makes it show up nicely in gst-inspect */
GType tmp = g_boxed_type_register_static ("JackClient",
(GBoxedCopyFunc) gst_jack_client_copy,
(GBoxedFreeFunc) gst_jack_client_free);
g_once_init_leave (&jack_client_type, tmp);
}
return (GType) jack_client_type;
}
static gboolean
plugin_init (GstPlugin * plugin)
{
gboolean ret = FALSE;
if (!gst_jack_load_library ()) {
GST_WARNING ("Failed to load jack library");
return FALSE;
}
ret |= GST_ELEMENT_REGISTER (jackaudiosrc, plugin);
ret |= GST_ELEMENT_REGISTER (jackaudiosink, plugin);
return ret;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
jack,
"JACK audio elements",
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)