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-rw-r--r--ext/lv2/README18
-rw-r--r--ext/lv2/gstlv2.c115
-rw-r--r--ext/lv2/gstlv2.h5
3 files changed, 61 insertions, 77 deletions
diff --git a/ext/lv2/README b/ext/lv2/README
new file mode 100644
index 00000000..d1431b77
--- /dev/null
+++ b/ext/lv2/README
@@ -0,0 +1,18 @@
+Gst-LV2 Quickstart
+
+Dependencies:
+
+SLV2 0.6.* <http://drobilla.net/software/slv2>
+
+Which in turn depends on:
+
+librdf (redland) >= 1.0.6 <http://librdf.org>
+
+
+Example Pipeline:
+
+Requires swh-lv2 <http://plugin.org.uk/releases/>
+
+gst-launch-0.10 -v filesrc location=/usr/share/sounds/login.wav ! wavparse ! audioconvert ! http---plugin-org-uk-swh-plugins-djFlanger ! audioconvert ! alsasink
+
+(A longer wav will be a better example)
diff --git a/ext/lv2/gstlv2.c b/ext/lv2/gstlv2.c
index 5d05f603..c5dbd78a 100644
--- a/ext/lv2/gstlv2.c
+++ b/ext/lv2/gstlv2.c
@@ -177,8 +177,11 @@ gst_lv2_base_init (gpointer g_class)
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); */
+ val = slv2_value_new_uri (world,
+ "http://lv2plug.in/ns/lv2core#inPlaceBroken");
+ if (!slv2_plugin_has_feature (lv2plugin, val))
+ GST_SIGNAL_PROCESSOR_CLASS_SET_CAN_PROCESS_IN_PLACE (klass);
+ slv2_value_free (val);
klass->plugin = lv2plugin;
}
@@ -294,19 +297,15 @@ gst_lv2_class_init (GstLV2Class * klass, SLV2Plugin lv2plugin)
static void
gst_lv2_init (GstLV2 * lv2, GstLV2Class * klass)
{
-#if 0
lv2->plugin = klass->plugin;
lv2->instance = NULL;
lv2->activated = FALSE;
- lv2->inplace_broken = LV2_IS_INPLACE_BROKEN (lv2->descriptor->Properties);
-#endif
}
static void
gst_lv2_set_property (GObject * object, guint prop_id, const GValue * value,
GParamSpec * pspec)
{
-#if 0
GstSignalProcessor *gsp;
GstSignalProcessorClass *gsp_class;
@@ -322,7 +321,7 @@ gst_lv2_set_property (GObject * object, guint prop_id, const GValue * value,
/* now see what type it is */
switch (pspec->value_type) {
case G_TYPE_BOOLEAN:
- gsp->control_in[prop_id] = g_value_get_boolean (value) ? 1.f : 0.f;
+ gsp->control_in[prop_id] = g_value_get_boolean (value) ? 0.0f : 1.0f;
break;
case G_TYPE_INT:
gsp->control_in[prop_id] = g_value_get_int (value);
@@ -333,14 +332,12 @@ gst_lv2_set_property (GObject * object, guint prop_id, const GValue * value,
default:
g_assert_not_reached ();
}
-#endif
}
static void
gst_lv2_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
-#if 0
GstSignalProcessor *gsp;
GstSignalProcessorClass *gsp_class;
gfloat *controls;
@@ -363,7 +360,7 @@ gst_lv2_get_property (GObject * object, guint prop_id, GValue * value,
/* now see what type it is */
switch (pspec->value_type) {
case G_TYPE_BOOLEAN:
- g_value_set_boolean (value, controls[prop_id] > 0.5);
+ g_value_set_boolean (value, controls[prop_id] > 0.0f);
break;
case G_TYPE_INT:
g_value_set_int (value, CLAMP (controls[prop_id], G_MININT, G_MAXINT));
@@ -374,64 +371,52 @@ gst_lv2_get_property (GObject * object, guint prop_id, GValue * value,
default:
g_return_if_reached ();
}
-#endif
}
static gboolean
gst_lv2_setup (GstSignalProcessor * gsp, guint sample_rate)
{
-#if 0
- GstLV2 *ladspa;
+ GstLV2 *lv2;
GstLV2Class *oclass;
GstSignalProcessorClass *gsp_class;
- LV2_Descriptor *desc;
int i;
gsp_class = GST_SIGNAL_PROCESSOR_GET_CLASS (gsp);
- ladspa = (GstLV2 *) gsp;
+ lv2 = (GstLV2 *) gsp;
oclass = (GstLV2Class *) gsp_class;
- desc = ladspa->descriptor;
- g_return_val_if_fail (ladspa->handle == NULL, FALSE);
- g_return_val_if_fail (ladspa->activated == FALSE, FALSE);
+ g_return_val_if_fail (lv2->activated == FALSE, FALSE);
- GST_DEBUG_OBJECT (ladspa, "instantiating the plugin at %d Hz", sample_rate);
+ GST_DEBUG_OBJECT (lv2, "instantiating the plugin at %d Hz", sample_rate);
- ladspa->handle = desc->instantiate (desc, sample_rate);
+ lv2->instance = slv2_plugin_instantiate (oclass->plugin, sample_rate, NULL);
- g_return_val_if_fail (ladspa->handle != NULL, FALSE);
+ g_return_val_if_fail (lv2->instance != NULL, FALSE);
/* connect the control ports */
for (i = 0; i < gsp_class->num_control_in; i++)
- desc->connect_port (ladspa->handle,
+ slv2_instance_connect_port (lv2->instance,
oclass->control_in_portnums[i], &(gsp->control_in[i]));
for (i = 0; i < gsp_class->num_control_out; i++)
- desc->connect_port (ladspa->handle,
+ slv2_instance_connect_port (lv2->instance,
oclass->control_out_portnums[i], &(gsp->control_out[i]));
-#endif
+
return TRUE;
}
static gboolean
gst_lv2_start (GstSignalProcessor * gsp)
{
-#if 0
- GstLV2 *ladspa;
- LV2_Descriptor *desc;
-
- ladspa = (GstLV2 *) gsp;
- desc = ladspa->descriptor;
+ GstLV2 *lv2 = (GstLV2 *) gsp;
- g_return_val_if_fail (ladspa->activated == FALSE, FALSE);
- g_return_val_if_fail (ladspa->handle != NULL, FALSE);
+ g_return_val_if_fail (lv2->activated == FALSE, FALSE);
+ g_return_val_if_fail (lv2->instance != NULL, FALSE);
- GST_DEBUG_OBJECT (ladspa, "activating");
+ GST_DEBUG_OBJECT (lv2, "activating");
- if (desc->activate)
- desc->activate (ladspa->handle);
+ slv2_instance_activate (lv2->instance);
- ladspa->activated = TRUE;
-#endif
+ lv2->activated = TRUE;
return TRUE;
}
@@ -439,71 +424,53 @@ gst_lv2_start (GstSignalProcessor * gsp)
static void
gst_lv2_stop (GstSignalProcessor * gsp)
{
-#if 0
- GstLV2 *ladspa;
- LV2_Descriptor *desc;
+ GstLV2 *lv2 = (GstLV2 *) gsp;
- ladspa = (GstLV2 *) gsp;
- desc = ladspa->descriptor;
+ g_return_if_fail (lv2->activated == TRUE);
+ g_return_if_fail (lv2->instance != NULL);
- g_return_if_fail (ladspa->activated == TRUE);
- g_return_if_fail (ladspa->handle != NULL);
+ GST_DEBUG_OBJECT (lv2, "deactivating");
- GST_DEBUG_OBJECT (ladspa, "deactivating");
+ slv2_instance_deactivate (lv2->instance);
- if (desc->activate)
- desc->activate (ladspa->handle);
-
- ladspa->activated = FALSE;
-#endif
+ lv2->activated = FALSE;
}
static void
gst_lv2_cleanup (GstSignalProcessor * gsp)
{
-#if 0
- GstLV2 *ladspa;
- LV2_Descriptor *desc;
-
- ladspa = (GstLV2 *) gsp;
- desc = ladspa->descriptor;
+ GstLV2 *lv2 = (GstLV2 *) gsp;
- g_return_if_fail (ladspa->activated == FALSE);
- g_return_if_fail (ladspa->handle != NULL);
+ g_return_if_fail (lv2->activated == FALSE);
+ g_return_if_fail (lv2->instance != NULL);
- GST_DEBUG_OBJECT (ladspa, "cleaning up");
+ GST_DEBUG_OBJECT (lv2, "cleaning up");
- if (desc->cleanup)
- desc->cleanup (ladspa->handle);
+ slv2_instance_free (lv2->instance);
- ladspa->handle = NULL;
-#endif
+ lv2->instance = NULL;
}
static void
gst_lv2_process (GstSignalProcessor * gsp, guint nframes)
{
-#if 0
GstSignalProcessorClass *gsp_class;
- GstLV2 *ladspa;
+ GstLV2 *lv2;
GstLV2Class *oclass;
- LV2_Descriptor *desc;
guint i;
gsp_class = GST_SIGNAL_PROCESSOR_GET_CLASS (gsp);
- ladspa = (GstLV2 *) gsp;
+ lv2 = (GstLV2 *) gsp;
oclass = (GstLV2Class *) gsp_class;
- desc = ladspa->descriptor;
for (i = 0; i < gsp_class->num_audio_in; i++)
- desc->connect_port (ladspa->handle, oclass->audio_in_portnums[i],
- gsp->audio_in[i]);
+ slv2_instance_connect_port (lv2->instance,
+ oclass->audio_in_portnums[i], gsp->audio_in[i]);
for (i = 0; i < gsp_class->num_audio_out; i++)
- desc->connect_port (ladspa->handle, oclass->audio_out_portnums[i],
- gsp->audio_out[i]);
+ slv2_instance_connect_port (lv2->instance,
+ oclass->audio_out_portnums[i], gsp->audio_out[i]);
- desc->run (ladspa->handle, nframes);
-#endif
+ slv2_instance_run (lv2->instance, nframes);
}
/* search the plugin path
diff --git a/ext/lv2/gstlv2.h b/ext/lv2/gstlv2.h
index f76235b4..66f9ddf9 100644
--- a/ext/lv2/gstlv2.h
+++ b/ext/lv2/gstlv2.h
@@ -51,11 +51,10 @@ typedef struct _GstLV2Class GstLV2Class;
struct _GstLV2 {
GstSignalProcessor parent;
- SLV2Plugin *plugin;
- SLV2Instance *instance;
+ SLV2Plugin plugin;
+ SLV2Instance instance;
gboolean activated;
- gboolean inplace_broken;
};
struct _GstLV2Class {
generated by cgit v1.2.1 (git 2.18.0) at 2024-07-02 03:53:05 +0000