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lfocontrolsource: make chainable

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Now the properties of this controlsource are in turn controlable. Add an example
to show the usage.
This commit is contained in:
Stefan Sauer 2012-01-01 15:16:06 +01:00
parent 757822a906
commit 9a7e45596e
2 changed files with 121 additions and 107 deletions
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154
libs/gst/controller/gstlfocontrolsource.c
View file

@ -95,17 +95,11 @@ waveform_sine_get (GstLFOControlSource * self, GstClockTime timestamp,
gdouble * value)
{
GstLFOControlSourcePrivate *priv = self->priv;
gdouble amp, off, frequency;
GstClockTime timeshift, period;
gst_object_sync_values (GST_OBJECT (self), timestamp);
g_mutex_lock (self->lock);
amp = priv->amplitude;
off = priv->offset;
timeshift = priv->timeshift;
period = priv->period;
frequency = priv->frequency;
*value = _sine_get (self, amp, off, timeshift, period, frequency, timestamp);
*value = _sine_get (self, priv->amplitude, priv->offset, priv->timeshift,
priv->period, priv->frequency, timestamp);
g_mutex_unlock (self->lock);
return TRUE;
}
@ -118,22 +112,16 @@ waveform_sine_get_value_array (GstLFOControlSource * self,
GstLFOControlSourcePrivate *priv = self->priv;
guint i;
GstClockTime ts = timestamp;
gdouble amp, off, frequency;
GstClockTime timeshift, period;
g_mutex_lock (self->lock);
amp = priv->amplitude;
off = priv->offset;
timeshift = priv->timeshift;
period = priv->period;
frequency = priv->frequency;
for (i = 0; i < n_values; i++) {
*values = _sine_get (self, amp, off, timeshift, period, frequency, ts);
gst_object_sync_values (GST_OBJECT (self), ts);
g_mutex_lock (self->lock);
*values = _sine_get (self, priv->amplitude, priv->offset, priv->timeshift,
priv->period, priv->frequency, ts);
g_mutex_unlock (self->lock);
ts += interval;
values++;
}
g_mutex_unlock (self->lock);
return TRUE;
}
@ -160,18 +148,11 @@ waveform_square_get (GstLFOControlSource * self, GstClockTime timestamp,
gdouble * value)
{
GstLFOControlSourcePrivate *priv = self->priv;
gdouble amp, off, frequency;
GstClockTime timeshift, period;
gst_object_sync_values (GST_OBJECT (self), timestamp);
g_mutex_lock (self->lock);
amp = priv->amplitude;
off = priv->offset;
timeshift = priv->timeshift;
period = priv->period;
frequency = priv->frequency;
*value =
_square_get (self, amp, off, timeshift, period, frequency, timestamp);
*value = _square_get (self, priv->amplitude, priv->offset, priv->timeshift,
priv->period, priv->frequency, timestamp);
g_mutex_unlock (self->lock);
return TRUE;
}
@ -184,22 +165,16 @@ waveform_square_get_value_array (GstLFOControlSource * self,
GstLFOControlSourcePrivate *priv = self->priv;
guint i;
GstClockTime ts = timestamp;
gdouble amp, off, frequency;
GstClockTime timeshift, period;
g_mutex_lock (self->lock);
amp = priv->amplitude;
off = priv->offset;
timeshift = priv->timeshift;
period = priv->period;
frequency = priv->frequency;
for (i = 0; i < n_values; i++) {
*values = _square_get (self, amp, off, timeshift, period, frequency, ts);
gst_object_sync_values (GST_OBJECT (self), ts);
g_mutex_lock (self->lock);
*values = _square_get (self, priv->amplitude, priv->offset, priv->timeshift,
priv->period, priv->frequency, ts);
g_mutex_unlock (self->lock);
ts += interval;
values++;
}
g_mutex_unlock (self->lock);
return TRUE;
}
@ -225,17 +200,11 @@ waveform_saw_get (GstLFOControlSource * self, GstClockTime timestamp,
gdouble * value)
{
GstLFOControlSourcePrivate *priv = self->priv;
gdouble amp, off, frequency;
GstClockTime timeshift, period;
gst_object_sync_values (GST_OBJECT (self), timestamp);
g_mutex_lock (self->lock);
amp = priv->amplitude;
off = priv->offset;
timeshift = priv->timeshift;
period = priv->period;
frequency = priv->frequency;
*value = _saw_get (self, amp, off, timeshift, period, frequency, timestamp);
*value = _saw_get (self, priv->amplitude, priv->offset, priv->timeshift,
priv->period, priv->frequency, timestamp);
g_mutex_unlock (self->lock);
return TRUE;
}
@ -248,22 +217,16 @@ waveform_saw_get_value_array (GstLFOControlSource * self,
GstLFOControlSourcePrivate *priv = self->priv;
guint i;
GstClockTime ts = timestamp;
gdouble amp, off, frequency;
GstClockTime timeshift, period;
g_mutex_lock (self->lock);
amp = priv->amplitude;
off = priv->offset;
timeshift = priv->timeshift;
period = priv->period;
frequency = priv->frequency;
for (i = 0; i < n_values; i++) {
*values = _saw_get (self, amp, off, timeshift, period, frequency, ts);
gst_object_sync_values (GST_OBJECT (self), ts);
g_mutex_lock (self->lock);
*values = _saw_get (self, priv->amplitude, priv->offset, priv->timeshift,
priv->period, priv->frequency, ts);
g_mutex_unlock (self->lock);
ts += interval;
values++;
}
g_mutex_unlock (self->lock);
return TRUE;
}
@ -289,17 +252,11 @@ waveform_rsaw_get (GstLFOControlSource * self, GstClockTime timestamp,
gdouble * value)
{
GstLFOControlSourcePrivate *priv = self->priv;
gdouble amp, off, frequency;
GstClockTime timeshift, period;
gst_object_sync_values (GST_OBJECT (self), timestamp);
g_mutex_lock (self->lock);
amp = priv->amplitude;
off = priv->offset;
timeshift = priv->timeshift;
period = priv->period;
frequency = priv->frequency;
*value = _rsaw_get (self, amp, off, timeshift, period, frequency, timestamp);
*value = _rsaw_get (self, priv->amplitude, priv->offset, priv->timeshift,
priv->period, priv->frequency, timestamp);
g_mutex_unlock (self->lock);
return TRUE;
}
@ -312,22 +269,16 @@ waveform_rsaw_get_value_array (GstLFOControlSource * self,
GstLFOControlSourcePrivate *priv = self->priv;
guint i;
GstClockTime ts = timestamp;
gdouble amp, off, frequency;
GstClockTime timeshift, period;
g_mutex_lock (self->lock);
amp = priv->amplitude;
off = priv->offset;
timeshift = priv->timeshift;
period = priv->period;
frequency = priv->frequency;
for (i = 0; i < n_values; i++) {
*values = _rsaw_get (self, amp, off, timeshift, period, frequency, ts);
gst_object_sync_values (GST_OBJECT (self), ts);
g_mutex_lock (self->lock);
*values = _rsaw_get (self, priv->amplitude, priv->offset, priv->timeshift,
priv->period, priv->frequency, ts);
g_mutex_unlock (self->lock);
ts += interval;
values++;
}
g_mutex_unlock (self->lock);
return TRUE;
}
@ -366,18 +317,11 @@ waveform_triangle_get (GstLFOControlSource * self, GstClockTime timestamp,
gdouble * value)
{
GstLFOControlSourcePrivate *priv = self->priv;
gdouble amp, off, frequency;
GstClockTime timeshift, period;
gst_object_sync_values (GST_OBJECT (self), timestamp);
g_mutex_lock (self->lock);
amp = priv->amplitude;
off = priv->offset;
timeshift = priv->timeshift;
period = priv->period;
frequency = priv->frequency;
*value =
_triangle_get (self, amp, off, timeshift, period, frequency, timestamp);
*value = _triangle_get (self, priv->amplitude, priv->offset, priv->timeshift,
priv->period, priv->frequency, timestamp);
g_mutex_unlock (self->lock);
return TRUE;
}
@ -390,22 +334,17 @@ waveform_triangle_get_value_array (GstLFOControlSource * self,
GstLFOControlSourcePrivate *priv = self->priv;
guint i;
GstClockTime ts = timestamp;
gdouble amp, off, frequency;
GstClockTime timeshift, period;
g_mutex_lock (self->lock);
amp = priv->amplitude;
off = priv->offset;
timeshift = priv->timeshift;
period = priv->period;
frequency = priv->frequency;
for (i = 0; i < n_values; i++) {
*values = _triangle_get (self, amp, off, timeshift, period, frequency, ts);
gst_object_sync_values (GST_OBJECT (self), ts);
g_mutex_lock (self->lock);
*values =
_triangle_get (self, priv->amplitude, priv->offset, priv->timeshift,
priv->period, priv->frequency, ts);
g_mutex_unlock (self->lock);
ts += interval;
values++;
}
g_mutex_unlock (self->lock);
return TRUE;
}
@ -642,7 +581,7 @@ gst_lfo_control_source_class_init (GstLFOControlSourceClass * klass)
g_object_class_install_property (gobject_class, PROP_FREQUENCY,
g_param_spec_double ("frequency", "Frequency",
"Frequency of the waveform", 0.0, G_MAXDOUBLE, 1.0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS));
/**
* GstLFOControlSource:timeshift
@ -657,7 +596,7 @@ gst_lfo_control_source_class_init (GstLFOControlSourceClass * klass)
g_object_class_install_property (gobject_class, PROP_TIMESHIFT,
g_param_spec_uint64 ("timeshift", "Timeshift",
"Timeshift of the waveform to the right", 0, G_MAXUINT64, 0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS));
/**
* GstLFOControlSource:amplitude
@ -666,8 +605,8 @@ gst_lfo_control_source_class_init (GstLFOControlSourceClass * klass)
*/
g_object_class_install_property (gobject_class, PROP_AMPLITUDE,
g_param_spec_double ("amplitude", "Amplitude",
"Amplitude of the waveform", 0.0, G_MAXDOUBLE, 1.0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
"Amplitude of the waveform", 0.0, 1.0, 1.0,
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS));
/**
* GstLFOControlSource:offset
@ -676,5 +615,6 @@ gst_lfo_control_source_class_init (GstLFOControlSourceClass * klass)
*/
g_object_class_install_property (gobject_class, PROP_OFFSET,
g_param_spec_double ("offset", "Offset", "Offset of the waveform",
0.0, G_MAXDOUBLE, 1.0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
0.0, 1.0, 1.0,
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS));
}

74
tests/examples/controller/control-sources.c
View file

@ -6,6 +6,7 @@
* Needs gnuplot for plotting.
* plot "ctrl_i1.dat" using 1:2 with points title 'none', "" using 1:3 with points title 'linear', "" using 1:4 with points title 'cubic', "ctrl_i2.dat" using 1:2 with lines title 'none', "" using 1:3 with lines title 'linear', "" using 1:4 with lines title 'cubic'
* plot "ctrl_l1.dat" using 1:2 with points title 'sine', "" using 1:3 with points title 'saw', "" using 1:4 with points title 'square', "" using 1:5 with points title 'triangle', "ctrl_l2.dat" using 1:2 with lines title 'sine', "" using 1:3 with lines title 'saw', "" using 1:4 with lines title 'square', "" using 1:5 with lines title 'triangle'
* plot "ctrl_cl1.dat" using 1:2 with points title 'sine', "ctrl_cl2.dat" using 1:2 with lines title 'sine'
*/
#include <stdio.h>
@ -344,6 +345,7 @@ test_lfo (void)
g_free (v1);
g_free (v2);
g_free (v3);
g_free (v4);
fclose (f);
@ -351,6 +353,76 @@ test_lfo (void)
gst_object_unref (e);
}
static void
test_chained_lfo (void)
{
GstObject *e;
GstLFOControlSource *lfocs1, *lfocs2;
GstControlSource *cs1, *cs2;
gint t, i1;
GValue *v1;
gint n_values;
FILE *f;
e = (GstObject *) gst_element_factory_make ("testobj", NULL);
lfocs1 = gst_lfo_control_source_new ();
cs1 = (GstControlSource *) lfocs1;
gst_object_set_control_source (e, "int", cs1);
g_object_set (lfocs1,
"waveform", GST_LFO_WAVEFORM_SINE,
"frequency", (gdouble) 0.05,
"timeshift", (GstClockTime) 0, "offset", (gdouble) 0.5, NULL);
lfocs2 = gst_lfo_control_source_new ();
cs2 = (GstControlSource *) lfocs2;
gst_object_set_control_source ((GstObject *) lfocs1, "amplitude", cs2);
g_object_set (lfocs2,
"waveform", GST_LFO_WAVEFORM_SINE,
"frequency", (gdouble) 0.05,
"timeshift", (GstClockTime) 0,
"amplitude", (gdouble) 0.5, "offset", (gdouble) 0.5, NULL);
/* test single values */
if (!(f = fopen ("ctrl_cl1.dat", "w")))
exit (-1);
fprintf (f, "# Time Sine\n");
for (t = 0; t < 40; t++) {
gst_object_sync_values (e, t * GST_SECOND);
i1 = GST_TEST_OBJ (e)->val_int;
fprintf (f, "%4.1f %d\n", (gfloat) t, i1);
}
fclose (f);
/* test value arrays */
if (!(f = fopen ("ctrl_cl2.dat", "w")))
exit (-1);
fprintf (f, "# Time Sine\n");
n_values = 40 * 10;
v1 = g_new0 (GValue, n_values);
gst_object_get_value_array (e, "int", 0, GST_SECOND / 10, n_values, v1);
for (t = 0; t < n_values; t++) {
i1 = g_value_get_int (&v1[t]);
fprintf (f, "%4.1f %d\n", (gfloat) t / 10.0, i1);
g_value_unset (&v1[t]);
}
g_free (v1);
fclose (f);
gst_object_unref (lfocs1);
gst_object_unref (lfocs2);
gst_object_unref (e);
}
gint
main (gint argc, gchar ** argv)
@ -362,5 +434,7 @@ main (gint argc, gchar ** argv)
test_interpolation ();
test_lfo ();
test_chained_lfo ();
return 0;
}