static void
gst_interpolation_control_source_init (GstInterpolationControlSource * self)
{
self->priv = gst_interpolation_control_source_get_instance_private (self);
gst_interpolation_control_source_set_interpolation_mode (self,
GST_INTERPOLATION_MODE_NONE);
}
static void
gst_interpolation_control_source_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstInterpolationControlSource *self =
GST_INTERPOLATION_CONTROL_SOURCE (object);
switch (prop_id) {
case PROP_MODE:
gst_interpolation_control_source_set_interpolation_mode (self,
(GstInterpolationMode) g_value_get_enum (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/*
* gst_controlled_property_set_interpolation_mode:
* @self: the controlled property object to change
* @mode: the new interpolation mode
*
* Sets the given Interpolation mode for the controlled property and activates
* the respective interpolation hooks.
*
* Deprecated: Use #GstControlSource, for example #GstInterpolationControlSource
* directly.
*
* Returns: %TRUE for success
*/
static gboolean
gst_controlled_property_set_interpolation_mode (GstControlledProperty * self,
GstInterpolateMode mode)
{
GstInterpolationControlSource *icsource;
/* FIXME: backward compat, add GstInterpolationControlSource */
if (!self->csource)
gst_controlled_property_add_interpolation_control_source (self);
g_return_val_if_fail (GST_IS_INTERPOLATION_CONTROL_SOURCE (self->csource),
FALSE);
icsource = GST_INTERPOLATION_CONTROL_SOURCE (self->csource);
return gst_interpolation_control_source_set_interpolation_mode (icsource,
mode);
}
gint
main (gint argc, gchar ** argv)
{
gint res = 1;
GstElement *src, *sink;
GstElement *bin;
GstController *ctrl;
GstInterpolationControlSource *csource1, *csource2;
GstClock *clock;
GstClockID clock_id;
GstClockReturn wait_ret;
GValue vol = { 0, };
gst_init (&argc, &argv);
gst_controller_init (&argc, &argv);
/* build pipeline */
bin = gst_pipeline_new ("pipeline");
clock = gst_pipeline_get_clock (GST_PIPELINE (bin));
src = gst_element_factory_make ("audiotestsrc", "gen_audio");
if (!src) {
GST_WARNING ("need audiotestsrc from gst-plugins-base");
goto Error;
}
sink = gst_element_factory_make ("autoaudiosink", "play_audio");
if (!sink) {
GST_WARNING ("need autoaudiosink from gst-plugins-base");
goto Error;
}
gst_bin_add_many (GST_BIN (bin), src, sink, NULL);
if (!gst_element_link (src, sink)) {
GST_WARNING ("can't link elements");
goto Error;
}
/* square wave
g_object_set (G_OBJECT(src), "wave", 1, NULL);
*/
/* add a controller to the source */
if (!(ctrl = gst_controller_new (G_OBJECT (src), "freq", "volume", NULL))) {
GST_WARNING ("can't control source element");
goto Error;
}
csource1 = gst_interpolation_control_source_new ();
csource2 = gst_interpolation_control_source_new ();
gst_controller_set_control_source (ctrl, "volume",
GST_CONTROL_SOURCE (csource1));
gst_controller_set_control_source (ctrl, "freq",
GST_CONTROL_SOURCE (csource2));
/* Set interpolation mode */
gst_interpolation_control_source_set_interpolation_mode (csource1,
GST_INTERPOLATE_LINEAR);
gst_interpolation_control_source_set_interpolation_mode (csource2,
GST_INTERPOLATE_LINEAR);
/* set control values */
g_value_init (&vol, G_TYPE_DOUBLE);
g_value_set_double (&vol, 0.0);
gst_interpolation_control_source_set (csource1, 0 * GST_SECOND, &vol);
g_value_set_double (&vol, 1.0);
gst_interpolation_control_source_set (csource1, 5 * GST_SECOND, &vol);
g_object_unref (csource1);
g_value_set_double (&vol, 220.0);
gst_interpolation_control_source_set (csource2, 0 * GST_SECOND, &vol);
g_value_set_double (&vol, 3520.0);
gst_interpolation_control_source_set (csource2, 3 * GST_SECOND, &vol);
g_value_set_double (&vol, 440.0);
gst_interpolation_control_source_set (csource2, 6 * GST_SECOND, &vol);
g_object_unref (csource2);
clock_id =
gst_clock_new_single_shot_id (clock,
gst_clock_get_time (clock) + (7 * GST_SECOND));
/* run for 7 seconds */
if (gst_element_set_state (bin, GST_STATE_PLAYING)) {
if ((wait_ret = gst_clock_id_wait (clock_id, NULL)) != GST_CLOCK_OK) {
GST_WARNING ("clock_id_wait returned: %d", wait_ret);
}
gst_element_set_state (bin, GST_STATE_NULL);
}
/* cleanup */
g_object_unref (G_OBJECT (ctrl));
gst_clock_id_unref (clock_id);
gst_object_unref (G_OBJECT (clock));
gst_object_unref (G_OBJECT (bin));
res = 0;
Error:
return (res);
}
static GstElement *
ges_track_video_transition_create_element (GESTrackObject * object)
{
GstElement *topbin, *iconva, *iconvb, *oconv;
GObject *target = NULL;
const gchar *propname = NULL;
GstElement *mixer = NULL;
GstPad *sinka_target, *sinkb_target, *src_target, *sinka, *sinkb, *src;
GstController *controller;
GstInterpolationControlSource *control_source;
GESTrackVideoTransition *self;
GESTrackVideoTransitionPrivate *priv;
self = GES_TRACK_VIDEO_TRANSITION (object);
priv = self->priv;
GST_LOG ("creating a video bin");
topbin = gst_bin_new ("transition-bin");
iconva = gst_element_factory_make ("ffmpegcolorspace", "tr-csp-a");
iconvb = gst_element_factory_make ("ffmpegcolorspace", "tr-csp-b");
oconv = gst_element_factory_make ("ffmpegcolorspace", "tr-csp-output");
gst_bin_add_many (GST_BIN (topbin), iconva, iconvb, oconv, NULL);
/* Prefer videomixer2 to videomixer */
mixer = gst_element_factory_make ("videomixer2", NULL);
if (mixer == NULL)
mixer = gst_element_factory_make ("videomixer", NULL);
g_object_set (G_OBJECT (mixer), "background", 1, NULL);
gst_bin_add (GST_BIN (topbin), mixer);
if (priv->type != GES_VIDEO_STANDARD_TRANSITION_TYPE_CROSSFADE) {
priv->sinka =
(GstPad *) link_element_to_mixer_with_smpte (GST_BIN (topbin), iconva,
mixer, priv->type, NULL);
priv->sinkb =
(GstPad *) link_element_to_mixer_with_smpte (GST_BIN (topbin), iconvb,
mixer, priv->type, &priv->smpte);
target = (GObject *) priv->smpte;
propname = "position";
priv->start_value = 1.0;
priv->end_value = 0.0;
} else {
priv->sinka = (GstPad *) link_element_to_mixer (iconva, mixer);
priv->sinkb = (GstPad *) link_element_to_mixer (iconvb, mixer);
target = (GObject *) priv->sinkb;
propname = "alpha";
priv->start_value = 0.0;
priv->end_value = 1.0;
}
priv->mixer = gst_object_ref (mixer);
fast_element_link (mixer, oconv);
sinka_target = gst_element_get_static_pad (iconva, "sink");
sinkb_target = gst_element_get_static_pad (iconvb, "sink");
src_target = gst_element_get_static_pad (oconv, "src");
sinka = gst_ghost_pad_new ("sinka", sinka_target);
sinkb = gst_ghost_pad_new ("sinkb", sinkb_target);
src = gst_ghost_pad_new ("src", src_target);
gst_element_add_pad (topbin, src);
gst_element_add_pad (topbin, sinka);
gst_element_add_pad (topbin, sinkb);
gst_object_unref (sinka_target);
gst_object_unref (sinkb_target);
gst_object_unref (src_target);
/* set up interpolation */
g_object_set (target, propname, (gfloat) 0.0, NULL);
controller = gst_object_control_properties (target, propname, NULL);
control_source = gst_interpolation_control_source_new ();
gst_controller_set_control_source (controller,
propname, GST_CONTROL_SOURCE (control_source));
gst_interpolation_control_source_set_interpolation_mode (control_source,
GST_INTERPOLATE_LINEAR);
priv->controller = controller;
priv->control_source = control_source;
return topbin;
}
static gboolean
gst_interpolation_control_source_bind (GstControlSource * source,
GParamSpec * pspec)
{
GType type, base;
GstInterpolationControlSource *self =
GST_INTERPOLATION_CONTROL_SOURCE (source);
gboolean ret = TRUE;
/* get the fundamental base type */
self->priv->type = base = type = G_PARAM_SPEC_VALUE_TYPE (pspec);
while ((type = g_type_parent (type)))
base = type;
self->priv->base = base;
/* restore type */
type = self->priv->type;
if (!gst_interpolation_control_source_set_interpolation_mode (self,
self->priv->interpolation_mode))
return FALSE;
switch (base) {
case G_TYPE_INT:{
GParamSpecInt *tpspec = G_PARAM_SPEC_INT (pspec);
g_value_init (&self->priv->default_value, type);
g_value_set_int (&self->priv->default_value, tpspec->default_value);
g_value_init (&self->priv->minimum_value, type);
g_value_set_int (&self->priv->minimum_value, tpspec->minimum);
g_value_init (&self->priv->maximum_value, type);
g_value_set_int (&self->priv->maximum_value, tpspec->maximum);
break;
}
case G_TYPE_UINT:{
GParamSpecUInt *tpspec = G_PARAM_SPEC_UINT (pspec);
g_value_init (&self->priv->default_value, type);
g_value_set_uint (&self->priv->default_value, tpspec->default_value);
g_value_init (&self->priv->minimum_value, type);
g_value_set_uint (&self->priv->minimum_value, tpspec->minimum);
g_value_init (&self->priv->maximum_value, type);
g_value_set_uint (&self->priv->maximum_value, tpspec->maximum);
break;
}
case G_TYPE_LONG:{
GParamSpecLong *tpspec = G_PARAM_SPEC_LONG (pspec);
g_value_init (&self->priv->default_value, type);
g_value_set_long (&self->priv->default_value, tpspec->default_value);
g_value_init (&self->priv->minimum_value, type);
g_value_set_long (&self->priv->minimum_value, tpspec->minimum);
g_value_init (&self->priv->maximum_value, type);
g_value_set_long (&self->priv->maximum_value, tpspec->maximum);
break;
}
case G_TYPE_ULONG:{
GParamSpecULong *tpspec = G_PARAM_SPEC_ULONG (pspec);
g_value_init (&self->priv->default_value, type);
g_value_set_ulong (&self->priv->default_value, tpspec->default_value);
g_value_init (&self->priv->minimum_value, type);
g_value_set_ulong (&self->priv->minimum_value, tpspec->minimum);
g_value_init (&self->priv->maximum_value, type);
g_value_set_ulong (&self->priv->maximum_value, tpspec->maximum);
break;
}
case G_TYPE_INT64:{
GParamSpecInt64 *tpspec = G_PARAM_SPEC_INT64 (pspec);
g_value_init (&self->priv->default_value, type);
g_value_set_int64 (&self->priv->default_value, tpspec->default_value);
g_value_init (&self->priv->minimum_value, type);
g_value_set_int64 (&self->priv->minimum_value, tpspec->minimum);
g_value_init (&self->priv->maximum_value, type);
g_value_set_int64 (&self->priv->maximum_value, tpspec->maximum);
break;
}
case G_TYPE_UINT64:{
GParamSpecUInt64 *tpspec = G_PARAM_SPEC_UINT64 (pspec);
g_value_init (&self->priv->default_value, type);
g_value_set_uint64 (&self->priv->default_value, tpspec->default_value);
g_value_init (&self->priv->minimum_value, type);
g_value_set_uint64 (&self->priv->minimum_value, tpspec->minimum);
g_value_init (&self->priv->maximum_value, type);
g_value_set_uint64 (&self->priv->maximum_value, tpspec->maximum);
break;
}
case G_TYPE_FLOAT:{
GParamSpecFloat *tpspec = G_PARAM_SPEC_FLOAT (pspec);
g_value_init (&self->priv->default_value, type);
g_value_set_float (&self->priv->default_value, tpspec->default_value);
g_value_init (&self->priv->minimum_value, type);
g_value_set_float (&self->priv->minimum_value, tpspec->minimum);
g_value_init (&self->priv->maximum_value, type);
g_value_set_float (&self->priv->maximum_value, tpspec->maximum);
break;
}
case G_TYPE_DOUBLE:{
GParamSpecDouble *tpspec = G_PARAM_SPEC_DOUBLE (pspec);
g_value_init (&self->priv->default_value, type);
g_value_set_double (&self->priv->default_value, tpspec->default_value);
g_value_init (&self->priv->minimum_value, type);
g_value_set_double (&self->priv->minimum_value, tpspec->minimum);
g_value_init (&self->priv->maximum_value, type);
g_value_set_double (&self->priv->maximum_value, tpspec->maximum);
break;
}
case G_TYPE_BOOLEAN:{
GParamSpecBoolean *tpspec = G_PARAM_SPEC_BOOLEAN (pspec);
g_value_init (&self->priv->default_value, type);
g_value_set_boolean (&self->priv->default_value, tpspec->default_value);
break;
}
case G_TYPE_ENUM:{
GParamSpecEnum *tpspec = G_PARAM_SPEC_ENUM (pspec);
g_value_init (&self->priv->default_value, type);
g_value_set_enum (&self->priv->default_value, tpspec->default_value);
break;
}
case G_TYPE_STRING:{
GParamSpecString *tpspec = G_PARAM_SPEC_STRING (pspec);
g_value_init (&self->priv->default_value, type);
g_value_set_string (&self->priv->default_value, tpspec->default_value);
break;
}
default:
GST_WARNING ("incomplete implementation for paramspec type '%s'",
G_PARAM_SPEC_TYPE_NAME (pspec));
ret = FALSE;
break;
}
if (ret) {
self->priv->valid_cache = FALSE;
self->priv->nvalues = 0;
} else {
gst_interpolation_control_source_reset (self);
}
return ret;
}
