static void
gst_controlled_property_add_interpolation_control_source (GstControlledProperty
* self)
{
GstControlSource *csource =
GST_CONTROL_SOURCE (gst_interpolation_control_source_new ());
GST_INFO
("Adding a GstInterpolationControlSource because of backward compatibility");
g_return_if_fail (!self->csource);
gst_control_source_bind (GST_CONTROL_SOURCE (csource), self->pspec);
self->csource = csource;
}
static void
gst_interpolation_control_source_reset (GstInterpolationControlSource * self)
{
GstControlSource *csource = GST_CONTROL_SOURCE (self);
csource->get_value = NULL;
csource->get_value_array = NULL;
self->priv->type = self->priv->base = G_TYPE_INVALID;
if (G_IS_VALUE (&self->priv->default_value))
g_value_unset (&self->priv->default_value);
if (G_IS_VALUE (&self->priv->minimum_value))
g_value_unset (&self->priv->minimum_value);
if (G_IS_VALUE (&self->priv->maximum_value))
g_value_unset (&self->priv->maximum_value);
if (self->priv->values) {
g_list_foreach (self->priv->values, (GFunc) gst_control_point_free, NULL);
g_list_free (self->priv->values);
self->priv->values = NULL;
}
self->priv->nvalues = 0;
self->priv->last_requested_value = NULL;
self->priv->valid_cache = FALSE;
}
static void
gst_lfo_control_source_reset (GstLFOControlSource * self)
{
GstControlSource *csource = GST_CONTROL_SOURCE (self);
csource->get_value = NULL;
csource->get_value_array = NULL;
self->priv->type = self->priv->base = G_TYPE_INVALID;
if (G_IS_VALUE (&self->priv->minimum_value))
g_value_unset (&self->priv->minimum_value);
if (G_IS_VALUE (&self->priv->maximum_value))
g_value_unset (&self->priv->maximum_value);
if (G_IS_VALUE (&self->priv->amplitude))
g_value_unset (&self->priv->amplitude);
if (G_IS_VALUE (&self->priv->offset))
g_value_unset (&self->priv->offset);
}
static gboolean
gst_interpolation_control_source_set_interpolation_mode
(GstInterpolationControlSource * self, GstInterpolationMode mode)
{
GstControlSource *csource = GST_CONTROL_SOURCE (self);
if (mode >= num_interpolation_modes || (int) mode < 0) {
GST_WARNING ("interpolation mode %d invalid or not implemented yet", mode);
return FALSE;
}
GST_TIMED_VALUE_CONTROL_SOURCE_LOCK (self);
csource->get_value = interpolation_modes[mode].get;
csource->get_value_array = interpolation_modes[mode].get_value_array;
gst_timed_value_control_invalidate_cache ((GstTimedValueControlSource *)
csource);
self->priv->interpolation_mode = mode;
GST_TIMED_VALUE_CONTROL_SOURCE_UNLOCK (self);
return TRUE;
}
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_lfo_control_source_set_waveform (GstLFOControlSource * self,
GstLFOWaveform waveform)
{
GstControlSource *csource = GST_CONTROL_SOURCE (self);
gboolean ret = TRUE;
if (waveform >= num_waveforms || waveform < 0) {
GST_WARNING ("waveform %d invalid or not implemented yet", waveform);
return FALSE;
}
if (self->priv->base == G_TYPE_INVALID) {
GST_WARNING ("not bound to a property yet");
return FALSE;
}
switch (self->priv->base) {
case G_TYPE_INT:
csource->get_value = waveforms[waveform]->get_int;
csource->get_value_array = waveforms[waveform]->get_int_value_array;
break;
case G_TYPE_UINT:{
csource->get_value = waveforms[waveform]->get_uint;
csource->get_value_array = waveforms[waveform]->get_uint_value_array;
break;
}
case G_TYPE_LONG:{
csource->get_value = waveforms[waveform]->get_long;
csource->get_value_array = waveforms[waveform]->get_long_value_array;
break;
}
case G_TYPE_ULONG:{
csource->get_value = waveforms[waveform]->get_ulong;
csource->get_value_array = waveforms[waveform]->get_ulong_value_array;
break;
}
case G_TYPE_INT64:{
csource->get_value = waveforms[waveform]->get_int64;
csource->get_value_array = waveforms[waveform]->get_int64_value_array;
break;
}
case G_TYPE_UINT64:{
csource->get_value = waveforms[waveform]->get_uint64;
csource->get_value_array = waveforms[waveform]->get_uint64_value_array;
break;
}
case G_TYPE_FLOAT:{
csource->get_value = waveforms[waveform]->get_float;
csource->get_value_array = waveforms[waveform]->get_float_value_array;
break;
}
case G_TYPE_DOUBLE:{
csource->get_value = waveforms[waveform]->get_double;
csource->get_value_array = waveforms[waveform]->get_double_value_array;
break;
}
default:
ret = FALSE;
break;
}
if (ret)
self->priv->waveform = waveform;
else
GST_WARNING ("incomplete implementation for type '%s'",
GST_STR_NULL (g_type_name (self->priv->type)));
return ret;
}
EXPORT_C
#endif
gboolean
gst_interpolation_control_source_set_interpolation_mode
(GstInterpolationControlSource * self, GstInterpolateMode mode) {
gboolean ret = TRUE;
GstControlSource *csource = GST_CONTROL_SOURCE (self);
if (mode >= num_interpolation_methods || interpolation_methods[mode] == NULL) {
GST_WARNING ("interpolation mode %d invalid or not implemented yet", mode);
return FALSE;
}
if (mode == GST_INTERPOLATE_QUADRATIC) {
GST_WARNING ("Quadratic interpolation mode is deprecated, using cubic"
"interpolation mode");
}
if (mode == GST_INTERPOLATE_USER) {
GST_WARNING ("User interpolation mode is not implemented yet");
return FALSE;
}
g_mutex_lock (self->lock);
switch (self->priv->base) {
case G_TYPE_INT:
csource->get_value = interpolation_methods[mode]->get_int;
csource->get_value_array =
interpolation_methods[mode]->get_int_value_array;
break;
case G_TYPE_UINT:{
csource->get_value = interpolation_methods[mode]->get_uint;
csource->get_value_array =
interpolation_methods[mode]->get_uint_value_array;
break;
}
case G_TYPE_LONG:{
csource->get_value = interpolation_methods[mode]->get_long;
csource->get_value_array =
interpolation_methods[mode]->get_long_value_array;
break;
}
case G_TYPE_ULONG:{
csource->get_value = interpolation_methods[mode]->get_ulong;
csource->get_value_array =
interpolation_methods[mode]->get_ulong_value_array;
break;
}
case G_TYPE_INT64:{
csource->get_value = interpolation_methods[mode]->get_int64;
csource->get_value_array =
interpolation_methods[mode]->get_int64_value_array;
break;
}
case G_TYPE_UINT64:{
csource->get_value = interpolation_methods[mode]->get_uint64;
csource->get_value_array =
interpolation_methods[mode]->get_uint64_value_array;
break;
}
case G_TYPE_FLOAT:{
csource->get_value = interpolation_methods[mode]->get_float;
csource->get_value_array =
interpolation_methods[mode]->get_float_value_array;
break;
}
case G_TYPE_DOUBLE:{
csource->get_value = interpolation_methods[mode]->get_double;
csource->get_value_array =
interpolation_methods[mode]->get_double_value_array;
break;
}
case G_TYPE_BOOLEAN:{
csource->get_value = interpolation_methods[mode]->get_boolean;
csource->get_value_array =
interpolation_methods[mode]->get_boolean_value_array;
break;
}
case G_TYPE_ENUM:{
csource->get_value = interpolation_methods[mode]->get_enum;
csource->get_value_array =
interpolation_methods[mode]->get_enum_value_array;
break;
}
case G_TYPE_STRING:{
csource->get_value = interpolation_methods[mode]->get_string;
csource->get_value_array =
interpolation_methods[mode]->get_string_value_array;
break;
}
default:
ret = FALSE;
break;
}
/* Incomplete implementation */
if (!ret || !csource->get_value || !csource->get_value_array) {
gst_interpolation_control_source_reset (self);
ret = FALSE;
}
self->priv->valid_cache = FALSE;
self->priv->interpolation_mode = mode;
g_mutex_unlock (self->lock);
return ret;
}
gint
main (gint argc, gchar ** argv)
{
GstElement *pipeline;
GstElement *shapewipe;
GstController *ctrl;
GstLFOControlSource *csource;
GValue val = { 0, };
GMainLoop *loop;
GstBus *bus;
gchar *pipeline_string;
if (argc != 2) {
g_print ("Usage: shapewipe mask.png\n");
return -1;
}
gst_init (&argc, &argv);
gst_controller_init (&argc, &argv);
pipeline_string =
g_strdup_printf
("videotestsrc ! video/x-raw-yuv,width=640,height=480 ! shapewipe name=shape border=0.05 ! videomixer name=mixer ! ffmpegcolorspace ! autovideosink filesrc location=%s ! typefind ! decodebin2 ! ffmpegcolorspace ! videoscale ! queue ! shape.mask_sink videotestsrc pattern=snow ! video/x-raw-yuv,width=640,height=480 ! queue ! mixer.",
argv[1]);
pipeline = gst_parse_launch (pipeline_string, NULL);
g_free (pipeline_string);
if (pipeline == NULL) {
g_print ("Failed to create pipeline\n");
return -2;
}
shapewipe = gst_bin_get_by_name (GST_BIN (pipeline), "shape");
if (!(ctrl = gst_controller_new (G_OBJECT (shapewipe), "position", NULL))) {
g_print ("can't control shapewipe element\n");
return -3;
}
csource = gst_lfo_control_source_new ();
gst_controller_set_control_source (ctrl, "position",
GST_CONTROL_SOURCE (csource));
g_value_init (&val, G_TYPE_FLOAT);
g_value_set_float (&val, 0.5);
g_object_set (G_OBJECT (csource), "amplitude", &val, NULL);
g_value_set_float (&val, 0.5);
g_object_set (G_OBJECT (csource), "offset", &val, NULL);
g_value_unset (&val);
g_object_set (G_OBJECT (csource), "frequency", 0.5, NULL);
g_object_set (G_OBJECT (csource), "timeshift", 500 * GST_MSECOND, NULL);
g_object_unref (csource);
loop = g_main_loop_new (NULL, FALSE);
bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
gst_bus_add_signal_watch (bus);
g_signal_connect (G_OBJECT (bus), "message", G_CALLBACK (on_message), loop);
gst_object_unref (GST_OBJECT (bus));
if (gst_element_set_state (pipeline,
GST_STATE_PLAYING) == GST_STATE_CHANGE_FAILURE) {
g_error ("Failed to go into PLAYING state");
return -4;
}
g_main_loop_run (loop);
gst_element_set_state (pipeline, GST_STATE_NULL);
g_main_loop_unref (loop);
g_object_unref (G_OBJECT (ctrl));
gst_object_unref (G_OBJECT (pipeline));
return 0;
}
