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Working basic LV2 signal processing.

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LV2 plugins, short of any surprises, should work with the same basic
functionality as LADSPA plugins.
This commit is contained in:
Dave Robillard 2009-05-25 22:15:56 -04:00 committed by Stefan Kost
parent ab96789f58
commit db1a4ba50b
2 changed files with 38 additions and 75 deletions
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108
ext/lv2/gstlv2.c
View file

@ -297,19 +297,15 @@ gst_lv2_class_init (GstLV2Class * klass, SLV2Plugin lv2plugin)
static void static void
gst_lv2_init (GstLV2 * lv2, GstLV2Class * klass) gst_lv2_init (GstLV2 * lv2, GstLV2Class * klass)
{ {
#if 0
lv2->plugin = klass->plugin; lv2->plugin = klass->plugin;
lv2->instance = NULL; lv2->instance = NULL;
lv2->activated = FALSE; lv2->activated = FALSE;
lv2->inplace_broken = LV2_IS_INPLACE_BROKEN (lv2->descriptor->Properties);
#endif
} }
static void static void
gst_lv2_set_property (GObject * object, guint prop_id, const GValue * value, gst_lv2_set_property (GObject * object, guint prop_id, const GValue * value,
GParamSpec * pspec) GParamSpec * pspec)
{ {
#if 0
GstSignalProcessor *gsp; GstSignalProcessor *gsp;
GstSignalProcessorClass *gsp_class; GstSignalProcessorClass *gsp_class;
@ -325,7 +321,7 @@ gst_lv2_set_property (GObject * object, guint prop_id, const GValue * value,
/* now see what type it is */ /* now see what type it is */
switch (pspec->value_type) { switch (pspec->value_type) {
case G_TYPE_BOOLEAN: 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; break;
case G_TYPE_INT: case G_TYPE_INT:
gsp->control_in[prop_id] = g_value_get_int (value); gsp->control_in[prop_id] = g_value_get_int (value);
@ -336,14 +332,12 @@ gst_lv2_set_property (GObject * object, guint prop_id, const GValue * value,
default: default:
g_assert_not_reached (); g_assert_not_reached ();
} }
#endif
} }
static void static void
gst_lv2_get_property (GObject * object, guint prop_id, GValue * value, gst_lv2_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec) GParamSpec * pspec)
{ {
#if 0
GstSignalProcessor *gsp; GstSignalProcessor *gsp;
GstSignalProcessorClass *gsp_class; GstSignalProcessorClass *gsp_class;
gfloat *controls; gfloat *controls;
@ -366,7 +360,7 @@ gst_lv2_get_property (GObject * object, guint prop_id, GValue * value,
/* now see what type it is */ /* now see what type it is */
switch (pspec->value_type) { switch (pspec->value_type) {
case G_TYPE_BOOLEAN: 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; break;
case G_TYPE_INT: case G_TYPE_INT:
g_value_set_int (value, CLAMP (controls[prop_id], G_MININT, G_MAXINT)); g_value_set_int (value, CLAMP (controls[prop_id], G_MININT, G_MAXINT));
@ -377,64 +371,52 @@ gst_lv2_get_property (GObject * object, guint prop_id, GValue * value,
default: default:
g_return_if_reached (); g_return_if_reached ();
} }
#endif
} }
static gboolean static gboolean
gst_lv2_setup (GstSignalProcessor * gsp, guint sample_rate) gst_lv2_setup (GstSignalProcessor * gsp, guint sample_rate)
{ {
#if 0 GstLV2 *lv2;
GstLV2 *ladspa;
GstLV2Class *oclass; GstLV2Class *oclass;
GstSignalProcessorClass *gsp_class; GstSignalProcessorClass *gsp_class;
LV2_Descriptor *desc;
int i; int i;
gsp_class = GST_SIGNAL_PROCESSOR_GET_CLASS (gsp); gsp_class = GST_SIGNAL_PROCESSOR_GET_CLASS (gsp);
ladspa = (GstLV2 *) gsp; lv2 = (GstLV2 *) gsp;
oclass = (GstLV2Class *) gsp_class; oclass = (GstLV2Class *) gsp_class;
desc = ladspa->descriptor;
g_return_val_if_fail (ladspa->handle == NULL, FALSE); g_return_val_if_fail (lv2->activated == FALSE, FALSE);
g_return_val_if_fail (ladspa->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 */ /* connect the control ports */
for (i = 0; i < gsp_class->num_control_in; i++) 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])); oclass->control_in_portnums[i], &(gsp->control_in[i]));
for (i = 0; i < gsp_class->num_control_out; 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])); oclass->control_out_portnums[i], &(gsp->control_out[i]));
#endif
return TRUE; return TRUE;
} }
static gboolean static gboolean
gst_lv2_start (GstSignalProcessor * gsp) gst_lv2_start (GstSignalProcessor * gsp)
{ {
#if 0 GstLV2 *lv2 = (GstLV2 *) gsp;
GstLV2 *ladspa;
LV2_Descriptor *desc;
ladspa = (GstLV2 *) gsp; g_return_val_if_fail (lv2->activated == FALSE, FALSE);
desc = ladspa->descriptor; g_return_val_if_fail (lv2->instance != NULL, FALSE);
g_return_val_if_fail (ladspa->activated == FALSE, FALSE); GST_DEBUG_OBJECT (lv2, "activating");
g_return_val_if_fail (ladspa->handle != NULL, FALSE);
GST_DEBUG_OBJECT (ladspa, "activating"); slv2_instance_activate (lv2->instance);
if (desc->activate) lv2->activated = TRUE;
desc->activate (ladspa->handle);
ladspa->activated = TRUE;
#endif
return TRUE; return TRUE;
} }
@ -442,71 +424,53 @@ gst_lv2_start (GstSignalProcessor * gsp)
static void static void
gst_lv2_stop (GstSignalProcessor * gsp) gst_lv2_stop (GstSignalProcessor * gsp)
{ {
#if 0 GstLV2 *lv2 = (GstLV2 *) gsp;
GstLV2 *ladspa;
LV2_Descriptor *desc;
ladspa = (GstLV2 *) gsp; g_return_if_fail (lv2->activated == TRUE);
desc = ladspa->descriptor; g_return_if_fail (lv2->instance != NULL);
g_return_if_fail (ladspa->activated == TRUE); GST_DEBUG_OBJECT (lv2, "deactivating");
g_return_if_fail (ladspa->handle != NULL);
GST_DEBUG_OBJECT (ladspa, "deactivating"); slv2_instance_deactivate (lv2->instance);
if (desc->activate) lv2->activated = FALSE;
desc->activate (ladspa->handle);
ladspa->activated = FALSE;
#endif
} }
static void static void
gst_lv2_cleanup (GstSignalProcessor * gsp) gst_lv2_cleanup (GstSignalProcessor * gsp)
{ {
#if 0 GstLV2 *lv2 = (GstLV2 *) gsp;
GstLV2 *ladspa;
LV2_Descriptor *desc;
ladspa = (GstLV2 *) gsp; g_return_if_fail (lv2->activated == FALSE);
desc = ladspa->descriptor; g_return_if_fail (lv2->instance != NULL);
g_return_if_fail (ladspa->activated == FALSE); GST_DEBUG_OBJECT (lv2, "cleaning up");
g_return_if_fail (ladspa->handle != NULL);
GST_DEBUG_OBJECT (ladspa, "cleaning up"); slv2_instance_free (lv2->instance);
if (desc->cleanup) lv2->instance = NULL;
desc->cleanup (ladspa->handle);
ladspa->handle = NULL;
#endif
} }
static void static void
gst_lv2_process (GstSignalProcessor * gsp, guint nframes) gst_lv2_process (GstSignalProcessor * gsp, guint nframes)
{ {
#if 0
GstSignalProcessorClass *gsp_class; GstSignalProcessorClass *gsp_class;
GstLV2 *ladspa; GstLV2 *lv2;
GstLV2Class *oclass; GstLV2Class *oclass;
LV2_Descriptor *desc;
guint i; guint i;
gsp_class = GST_SIGNAL_PROCESSOR_GET_CLASS (gsp); gsp_class = GST_SIGNAL_PROCESSOR_GET_CLASS (gsp);
ladspa = (GstLV2 *) gsp; lv2 = (GstLV2 *) gsp;
oclass = (GstLV2Class *) gsp_class; oclass = (GstLV2Class *) gsp_class;
desc = ladspa->descriptor;
for (i = 0; i < gsp_class->num_audio_in; i++) for (i = 0; i < gsp_class->num_audio_in; i++)
desc->connect_port (ladspa->handle, oclass->audio_in_portnums[i], slv2_instance_connect_port (lv2->instance,
gsp->audio_in[i]); oclass->audio_in_portnums[i], gsp->audio_in[i]);
for (i = 0; i < gsp_class->num_audio_out; i++) for (i = 0; i < gsp_class->num_audio_out; i++)
desc->connect_port (ladspa->handle, oclass->audio_out_portnums[i], slv2_instance_connect_port (lv2->instance,
gsp->audio_out[i]); oclass->audio_out_portnums[i], gsp->audio_out[i]);
desc->run (ladspa->handle, nframes); slv2_instance_run (lv2->instance, nframes);
#endif
} }
/* search the plugin path /* search the plugin path

5
ext/lv2/gstlv2.h
View file

@ -51,11 +51,10 @@ typedef struct _GstLV2Class GstLV2Class;
struct _GstLV2 { struct _GstLV2 {
GstSignalProcessor parent; GstSignalProcessor parent;
SLV2Plugin *plugin; SLV2Plugin plugin;
SLV2Instance *instance; SLV2Instance instance;
gboolean activated; gboolean activated;
gboolean inplace_broken;
}; };
struct _GstLV2Class { struct _GstLV2Class {