static void
gst_lv2_class_init (GstLV2Class * klass, SLV2Plugin lv2plugin)
{
GObjectClass *gobject_class;
GstSignalProcessorClass *gsp_class;
gint i;
GST_DEBUG ("class_init %p", klass);
gobject_class = (GObjectClass *) klass;
gobject_class->set_property = gst_lv2_set_property;
gobject_class->get_property = gst_lv2_get_property;
gsp_class = GST_SIGNAL_PROCESSOR_CLASS (klass);
gsp_class->setup = gst_lv2_setup;
gsp_class->start = gst_lv2_start;
gsp_class->stop = gst_lv2_stop;
gsp_class->cleanup = gst_lv2_cleanup;
gsp_class->process = gst_lv2_process;
klass->plugin = lv2plugin;
/* register properties */
for (i = 0; i < gsp_class->num_control_in; i++) {
GParamSpec *p;
p = gst_lv2_class_get_param_spec (klass, klass->control_in_portnums[i]);
/* properties have an offset of 1 */
g_object_class_install_property (G_OBJECT_CLASS (klass), i + 1, p);
}
for (i = 0; i < gsp_class->num_control_out; i++) {
GParamSpec *p;
p = gst_lv2_class_get_param_spec (klass, klass->control_out_portnums[i]);
/* properties have an offset of 1, and we already added num_control_in */
g_object_class_install_property (G_OBJECT_CLASS (klass),
gsp_class->num_control_in + i + 1, p);
}
}
static void
gst_ladspa_class_init (GstLADSPAClass * klass, LADSPA_Descriptor * desc)
{
GObjectClass *gobject_class;
GstSignalProcessorClass *gsp_class;
GParamSpec *p;
gint i, ix;
GST_DEBUG ("class_init %p", klass);
gobject_class = (GObjectClass *) klass;
gobject_class->set_property = gst_ladspa_set_property;
gobject_class->get_property = gst_ladspa_get_property;
gsp_class = GST_SIGNAL_PROCESSOR_CLASS (klass);
gsp_class->setup = gst_ladspa_setup;
gsp_class->start = gst_ladspa_start;
gsp_class->stop = gst_ladspa_stop;
gsp_class->cleanup = gst_ladspa_cleanup;
gsp_class->process = gst_ladspa_process;
/* properties have an offset of 1 */
ix = 1;
/* register properties */
for (i = 0; i < gsp_class->num_control_in; i++, ix++) {
p = gst_ladspa_class_get_param_spec (klass, klass->control_in_portnums[i]);
g_object_class_install_property (gobject_class, ix, p);
}
for (i = 0; i < gsp_class->num_control_out; i++, ix++) {
p = gst_ladspa_class_get_param_spec (klass, klass->control_out_portnums[i]);
g_object_class_install_property (gobject_class, ix, p);
}
}
static void
gst_lv2_base_init (gpointer g_class)
{
GstLV2Class *klass = (GstLV2Class *) g_class;
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
GstSignalProcessorClass *gsp_class = GST_SIGNAL_PROCESSOR_CLASS (g_class);
GstElementDetails *details;
SLV2Plugin lv2plugin;
SLV2Value val;
guint j, audio_in_count, audio_out_count, control_in_count, control_out_count;
gchar *klass_tags;
GST_DEBUG ("base_init %p", g_class);
lv2plugin = (SLV2Plugin) g_type_get_qdata (G_OBJECT_CLASS_TYPE (klass),
GST_SLV2_PLUGIN_QDATA);
g_assert (lv2plugin);
/* pad templates */
gsp_class->num_audio_in = 0;
gsp_class->num_audio_out = 0;
/* properties */
gsp_class->num_control_in = 0;
gsp_class->num_control_out = 0;
for (j = 0; j < slv2_plugin_get_num_ports (lv2plugin); j++) {
SLV2Port port = slv2_plugin_get_port_by_index (lv2plugin, j);
if (slv2_port_is_a (lv2plugin, port, audio_class)) {
gchar *name =
g_strdup (slv2_value_as_string (slv2_port_get_symbol (lv2plugin,
port)));
GST_DEBUG ("LV2 port name: \"%s\"", name);
if (slv2_port_is_a (lv2plugin, port, input_class))
gst_signal_processor_class_add_pad_template (gsp_class, name,
GST_PAD_SINK, gsp_class->num_audio_in++);
else if (slv2_port_is_a (lv2plugin, port, output_class))
gst_signal_processor_class_add_pad_template (gsp_class, name,
GST_PAD_SRC, gsp_class->num_audio_out++);
/* TODO: else ignore plugin */
g_free (name);
} else if (slv2_port_is_a (lv2plugin, port, control_class)) {
if (slv2_port_is_a (lv2plugin, port, input_class))
gsp_class->num_control_in++;
else if (slv2_port_is_a (lv2plugin, port, output_class))
gsp_class->num_control_out++;
/* TODO: else ignore plugin */
}
/* TODO: else ignore plugin */
}
/* construct the element details struct */
details = g_new0 (GstElementDetails, 1);
val = slv2_plugin_get_name (lv2plugin);
if (val) {
details->longname = g_strdup (slv2_value_as_string (val));
slv2_value_free (val);
} else {
details->longname = g_strdup ("no description available");
}
details->description = details->longname;
val = slv2_plugin_get_author_name (lv2plugin);
if (val) {
details->author = g_strdup (slv2_value_as_string (val));
slv2_value_free (val);
} else {
details->author = g_strdup ("no author available");
}
if (gsp_class->num_audio_in == 0)
klass_tags = "Source/Audio/LV2";
else if (gsp_class->num_audio_out == 0) {
if (gsp_class->num_control_out == 0)
klass_tags = "Sink/Audio/LV2";
else
klass_tags = "Sink/Analyzer/Audio/LV2";
} else
klass_tags = "Filter/Effect/Audio/LV2";
details->klass = klass_tags;
GST_INFO ("tags : %s", details->klass);
gst_element_class_set_details (element_class, details);
g_free (details->longname);
g_free (details->author);
g_free (details);
klass->audio_in_portnums = g_new0 (gint, gsp_class->num_audio_in);
klass->audio_out_portnums = g_new0 (gint, gsp_class->num_audio_out);
klass->control_in_portnums = g_new0 (gint, gsp_class->num_control_in);
klass->control_out_portnums = g_new0 (gint, gsp_class->num_control_out);
audio_in_count = audio_out_count = control_in_count = control_out_count = 0;
for (j = 0; j < slv2_plugin_get_num_ports (lv2plugin); j++) {
SLV2Port port = slv2_plugin_get_port_by_index (lv2plugin, j);
gboolean is_input = slv2_port_is_a (lv2plugin, port, input_class);
if (slv2_port_is_a (lv2plugin, port, audio_class)) {
if (is_input)
klass->audio_in_portnums[audio_in_count++] = j;
else
klass->audio_out_portnums[audio_out_count++] = j;
} else if (slv2_port_is_a (lv2plugin, port, control_class)) {
if (is_input)
klass->control_in_portnums[control_in_count++] = j;
else
klass->control_out_portnums[control_out_count++] = j;
}
}
g_assert (audio_in_count == gsp_class->num_audio_in);
g_assert (audio_out_count == gsp_class->num_audio_out);
g_assert (control_in_count == gsp_class->num_control_in);
g_assert (control_out_count == gsp_class->num_control_out);
/*if (!LV2_IS_INPLACE_BROKEN (desc->Properties))
GST_SIGNAL_PROCESSOR_CLASS_SET_CAN_PROCESS_IN_PLACE (klass); */
klass->plugin = lv2plugin;
}
static void
gst_ladspa_base_init (gpointer g_class)
{
GstLADSPAClass *klass = (GstLADSPAClass *) g_class;
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
GstSignalProcessorClass *gsp_class = GST_SIGNAL_PROCESSOR_CLASS (g_class);
LADSPA_Descriptor *desc;
guint j, audio_in_count, audio_out_count, control_in_count, control_out_count;
const gchar *klass_tags;
gchar *longname, *author;
#ifdef HAVE_LRDF
gchar *uri;
#endif
gchar *extra_klass_tags = NULL;
GST_DEBUG ("base_init %p", g_class);
desc = (LADSPA_Descriptor *) g_type_get_qdata (G_OBJECT_CLASS_TYPE (klass),
descriptor_quark);
g_assert (desc);
klass->descriptor = desc;
/* pad templates */
gsp_class->num_audio_in = 0;
gsp_class->num_audio_out = 0;
/* properties */
gsp_class->num_control_in = 0;
gsp_class->num_control_out = 0;
for (j = 0; j < desc->PortCount; j++) {
LADSPA_PortDescriptor p = desc->PortDescriptors[j];
if (LADSPA_IS_PORT_AUDIO (p)) {
gchar *name = g_strdup ((gchar *) desc->PortNames[j]);
/* FIXME: group stereo pairs into a stereo pad
* ladspa-fx have "XXX (Left)" and "XXX (Right)"
* where XXX={In,Input,Out,Output}
*/
GST_DEBUG ("LADSPA port name: \"%s\"", name);
/* replaces all spaces with underscores, and then remaining special chars
* with '-'
* FIXME: why, pads can have any name
*/
g_strdelimit (name, " ", '_');
g_strcanon (name, G_CSET_A_2_Z G_CSET_a_2_z G_CSET_DIGITS "_-><=", '-');
GST_DEBUG ("GStreamer pad name: \"%s\"", name);
if (LADSPA_IS_PORT_INPUT (p))
gst_signal_processor_class_add_pad_template (gsp_class, name,
GST_PAD_SINK, gsp_class->num_audio_in++, 1);
else
gst_signal_processor_class_add_pad_template (gsp_class, name,
GST_PAD_SRC, gsp_class->num_audio_out++, 1);
g_free (name);
} else if (LADSPA_IS_PORT_CONTROL (p)) {
if (LADSPA_IS_PORT_INPUT (p))
gsp_class->num_control_in++;
else
gsp_class->num_control_out++;
}
}
longname = g_locale_to_utf8 (desc->Name, -1, NULL, NULL, NULL);
if (!longname)
longname = g_strdup ("no description available");
author = g_locale_to_utf8 (desc->Maker, -1, NULL, NULL, NULL);
if (!author)
author = g_strdup ("no author available");
#ifdef HAVE_LRDF
/* libldrf support, we want to get extra class information here */
uri = g_strdup_printf (LADSPA_BASE "%ld", desc->UniqueID);
if (uri) {
lrdf_statement query = { 0, };
lrdf_uris *uris;
gchar *str, *base_type = NULL;
GST_DEBUG ("uri (id=%d) : %s", desc->UniqueID, uri);
/* we can take this directly from 'desc', keep this example for future
attributes.
if ((str = lrdf_get_setting_metadata (uri, "title"))) {
GST_DEBUG ("title : %s", str);
}
if ((str = lrdf_get_setting_metadata (uri, "creator"))) {
GST_DEBUG ("creator : %s", str);
}
*/
/* get the rdf:type for this plugin */
query.subject = uri;
query.predicate = (char *) RDF_BASE "type";
query.object = (char *) "?";
query.next = NULL;
uris = lrdf_match_multi (&query);
if (uris) {
if (uris->count == 1) {
base_type = g_strdup (uris->items[0]);
GST_DEBUG ("base_type : %s", base_type);
}
lrdf_free_uris (uris);
}
/* query taxonomy */
if (base_type) {
uris = lrdf_get_all_superclasses (base_type);
if (uris) {
guint32 j;
for (j = 0; j < uris->count; j++) {
GST_LOG ("parent_type_uri : %s", uris->items[j]);
if ((str = lrdf_get_label (uris->items[j]))) {
GST_DEBUG ("parent_type_label : %s", str);
if (extra_klass_tags) {
gchar *old_tags = extra_klass_tags;
extra_klass_tags = g_strconcat (extra_klass_tags, "/", str, NULL);
g_free (old_tags);
} else {
extra_klass_tags = g_strconcat ("/", str, NULL);
}
}
}
lrdf_free_uris (uris);
}
g_free (base_type);
}
/* we can use this for the presets
uris = lrdf_get_setting_uris (desc->UniqueID);
if (uris) {
guint32 j;
for (j = 0; j < uris->count; j++) {
GST_INFO ("setting_uri : %s", uris->items[j]);
if ((str = lrdf_get_label (uris->items[j]))) {
GST_INFO ("setting_label : %s", str);
}
}
lrdf_free_uris (uris);
}
*/
}
g_free (uri);
#endif
if (gsp_class->num_audio_in == 0)
klass_tags = "Source/Audio/LADSPA";
else if (gsp_class->num_audio_out == 0) {
if (gsp_class->num_control_out == 0)
klass_tags = "Sink/Audio/LADSPA";
else
klass_tags = "Sink/Analyzer/Audio/LADSPA";
} else
klass_tags = "Filter/Effect/Audio/LADSPA";
#ifdef HAVE_LRDF
if (extra_klass_tags) {
char *s = g_strconcat (klass_tags, extra_klass_tags, NULL);
g_free (extra_klass_tags);
extra_klass_tags = s;
}
#endif
GST_INFO ("tags : %s", klass_tags);
gst_element_class_set_metadata (element_class, longname,
extra_klass_tags ? extra_klass_tags : klass_tags, longname, author);
g_free (longname);
g_free (author);
g_free (extra_klass_tags);
klass->audio_in_portnums = g_new0 (gint, gsp_class->num_audio_in);
klass->audio_out_portnums = g_new0 (gint, gsp_class->num_audio_out);
klass->control_in_portnums = g_new0 (gint, gsp_class->num_control_in);
klass->control_out_portnums = g_new0 (gint, gsp_class->num_control_out);
audio_in_count = audio_out_count = control_in_count = control_out_count = 0;
for (j = 0; j < desc->PortCount; j++) {
LADSPA_PortDescriptor p = desc->PortDescriptors[j];
if (LADSPA_IS_PORT_AUDIO (p)) {
if (LADSPA_IS_PORT_INPUT (p))
klass->audio_in_portnums[audio_in_count++] = j;
else
klass->audio_out_portnums[audio_out_count++] = j;
} else if (LADSPA_IS_PORT_CONTROL (p)) {
if (LADSPA_IS_PORT_INPUT (p))
klass->control_in_portnums[control_in_count++] = j;
else
klass->control_out_portnums[control_out_count++] = j;
}
}
g_assert (audio_in_count == gsp_class->num_audio_in);
g_assert (audio_out_count == gsp_class->num_audio_out);
g_assert (control_in_count == gsp_class->num_control_in);
g_assert (control_out_count == gsp_class->num_control_out);
if (!LADSPA_IS_INPLACE_BROKEN (desc->Properties))
GST_SIGNAL_PROCESSOR_CLASS_SET_CAN_PROCESS_IN_PLACE (klass);
klass->descriptor = desc;
}
static void
gst_ladspa_base_init (gpointer g_class)
{
GstLADSPAClass *klass = (GstLADSPAClass *) g_class;
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
GstSignalProcessorClass *gsp_class = GST_SIGNAL_PROCESSOR_CLASS (g_class);
GstElementDetails *details;
LADSPA_Descriptor *desc;
guint j, audio_in_count, audio_out_count, control_in_count, control_out_count;
GST_DEBUG ("base_init %p", g_class);
desc = (LADSPA_Descriptor *) g_type_get_qdata (G_OBJECT_CLASS_TYPE (klass),
GST_LADSPA_DESCRIPTOR_QDATA);
g_assert (desc);
klass->descriptor = desc;
/* pad templates */
gsp_class->num_audio_in = 0;
gsp_class->num_audio_out = 0;
/* properties */
gsp_class->num_control_in = 0;
gsp_class->num_control_out = 0;
for (j = 0; j < desc->PortCount; j++) {
LADSPA_PortDescriptor p = desc->PortDescriptors[j];
if (LADSPA_IS_PORT_AUDIO (p)) {
gchar *name = g_strdup ((gchar *) desc->PortNames[j]);
/* FIXME: group stereo pairs into a stereo pad
* ladspa-fx have "XXX (Left)" and "XXX (Right)"
* where XXX={In,Input,Out,Output}
*/
GST_DEBUG ("LADSPA port name: \"%s\"", name);
/* replaces all spaces with underscores, and then remaining special chars
* with '-'
* FIXME: why, pads can have any name
*/
g_strdelimit (name, " ", '_');
g_strcanon (name, G_CSET_A_2_Z G_CSET_a_2_z G_CSET_DIGITS "_-><=", '-');
GST_DEBUG ("GStreamer pad name: \"%s\"", name);
if (LADSPA_IS_PORT_INPUT (p))
gst_signal_processor_class_add_pad_template (gsp_class, name,
GST_PAD_SINK, gsp_class->num_audio_in++);
else
gst_signal_processor_class_add_pad_template (gsp_class, name,
GST_PAD_SRC, gsp_class->num_audio_out++);
g_free (name);
} else if (LADSPA_IS_PORT_CONTROL (p)) {
if (LADSPA_IS_PORT_INPUT (p))
gsp_class->num_control_in++;
else
gsp_class->num_control_out++;
}
}
/* construct the element details struct */
details = g_new0 (GstElementDetails, 1);
details->longname = g_locale_to_utf8 (desc->Name, -1, NULL, NULL, NULL);
if (!details->longname)
details->longname = g_strdup ("no description available");
details->description = details->longname;
details->author = g_locale_to_utf8 (desc->Maker, -1, NULL, NULL, NULL);
if (!details->author)
details->author = g_strdup ("no author available");
if (gsp_class->num_audio_in == 0)
details->klass = "Source/Audio/LADSPA";
else if (gsp_class->num_audio_out == 0) {
if (gsp_class->num_control_out == 0)
details->klass = "Sink/Audio/LADSPA";
else
details->klass = "Sink/Analyzer/Audio/LADSPA";
} else
details->klass = "Filter/Effect/Audio/LADSPA";
gst_element_class_set_details (element_class, details);
g_free (details->longname);
g_free (details->author);
g_free (details);
klass->audio_in_portnums = g_new0 (gint, gsp_class->num_audio_in);
klass->audio_out_portnums = g_new0 (gint, gsp_class->num_audio_out);
klass->control_in_portnums = g_new0 (gint, gsp_class->num_control_in);
klass->control_out_portnums = g_new0 (gint, gsp_class->num_control_out);
audio_in_count = audio_out_count = control_in_count = control_out_count = 0;
for (j = 0; j < desc->PortCount; j++) {
LADSPA_PortDescriptor p = desc->PortDescriptors[j];
if (LADSPA_IS_PORT_AUDIO (p)) {
if (LADSPA_IS_PORT_INPUT (p))
klass->audio_in_portnums[audio_in_count++] = j;
else
klass->audio_out_portnums[audio_out_count++] = j;
} else if (LADSPA_IS_PORT_CONTROL (p)) {
if (LADSPA_IS_PORT_INPUT (p))
klass->control_in_portnums[control_in_count++] = j;
else
klass->control_out_portnums[control_out_count++] = j;
}
}
g_assert (audio_in_count == gsp_class->num_audio_in);
g_assert (audio_out_count == gsp_class->num_audio_out);
g_assert (control_in_count == gsp_class->num_control_in);
g_assert (control_out_count == gsp_class->num_control_out);
if (!LADSPA_IS_INPLACE_BROKEN (desc->Properties))
GST_SIGNAL_PROCESSOR_CLASS_SET_CAN_PROCESS_IN_PLACE (klass);
klass->descriptor = desc;
}
