--- /dev/null
+/* GStreamer
+ * Copyright (C) 2009 Sebastian Dröge <sebastian.droege@collabora.co.uk>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <string.h>
+
+#include "gstfrei0r.h"
+#include "gstfrei0rmixer.h"
+
+GST_DEBUG_CATEGORY_EXTERN (frei0r_debug);
+#define GST_CAT_DEFAULT frei0r_debug
+
+typedef struct
+{
+ f0r_plugin_info_t info;
+ GstFrei0rFuncTable ftable;
+} GstFrei0rMixerClassData;
+
+static void
+gst_frei0r_mixer_reset (GstFrei0rMixer * self)
+{
+ GstFrei0rMixerClass *klass = GST_FREI0R_MIXER_GET_CLASS (self);
+
+ if (self->f0r_instance) {
+ klass->ftable->destruct (self->f0r_instance);
+ self->f0r_instance = NULL;
+ }
+
+ gst_caps_replace (&self->caps, NULL);
+ gst_event_replace (&self->newseg_event, NULL);
+}
+
+static void
+gst_frei0r_mixer_finalize (GObject * object)
+{
+ GstFrei0rMixer *self = GST_FREI0R_MIXER (object);
+ GstFrei0rMixerClass *klass = GST_FREI0R_MIXER_GET_CLASS (object);
+
+ if (self->property_cache)
+ gst_frei0r_property_cache_free (klass->properties, self->property_cache,
+ klass->n_properties);
+ self->property_cache = NULL;
+
+ G_OBJECT_CLASS (g_type_class_peek_parent (klass))->finalize (object);
+}
+
+static void
+gst_frei0r_mixer_get_property (GObject * object, guint prop_id, GValue * value,
+ GParamSpec * pspec)
+{
+ GstFrei0rMixer *self = GST_FREI0R_MIXER (object);
+ GstFrei0rMixerClass *klass = GST_FREI0R_MIXER_GET_CLASS (object);
+
+ if (!gst_frei0r_get_property (self->f0r_instance, klass->ftable,
+ klass->properties, klass->n_properties, self->property_cache, prop_id,
+ value))
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+}
+
+static void
+gst_frei0r_mixer_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
+{
+ GstFrei0rMixer *self = GST_FREI0R_MIXER (object);
+ GstFrei0rMixerClass *klass = GST_FREI0R_MIXER_GET_CLASS (object);
+
+ if (!gst_frei0r_set_property (self->f0r_instance, klass->ftable,
+ klass->properties, klass->n_properties, self->property_cache, prop_id,
+ value))
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+}
+
+static GstStateChangeReturn
+gst_frei0r_mixer_change_state (GstElement * element, GstStateChange transition)
+{
+ GstFrei0rMixer *self = GST_FREI0R_MIXER (element);
+ GstFrei0rMixerClass *klass = GST_FREI0R_MIXER_GET_CLASS (self);
+ GstStateChangeReturn ret;
+
+ switch (transition) {
+ case GST_STATE_CHANGE_NULL_TO_READY:
+ break;
+ case GST_STATE_CHANGE_READY_TO_PAUSED:
+ gst_collect_pads_start (self->collect);
+ break;
+ case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
+ break;
+ default:
+ break;
+ }
+
+ /* Stop before calling the parent's state change function as
+ * GstCollectPads might take locks and we would deadlock in that
+ * case
+ */
+ if (transition == GST_STATE_CHANGE_PAUSED_TO_READY)
+ gst_collect_pads_stop (self->collect);
+
+ ret =
+ GST_ELEMENT_CLASS (g_type_class_peek_parent (klass))->change_state
+ (element, transition);
+
+ switch (transition) {
+ case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
+ break;
+ case GST_STATE_CHANGE_PAUSED_TO_READY:
+ gst_frei0r_mixer_reset (self);
+ break;
+ case GST_STATE_CHANGE_READY_TO_NULL:
+ break;
+ default:
+ break;
+ }
+
+ return ret;
+}
+
+static GstCaps *
+gst_frei0r_mixer_get_caps (GstPad * pad)
+{
+ GstFrei0rMixer *self = GST_FREI0R_MIXER (gst_pad_get_parent (pad));
+ GstCaps *caps = NULL;
+
+ if (self->caps) {
+ caps = gst_caps_ref (self->caps);
+ } else {
+ GstCaps *tmp, *tmp1;
+
+ tmp = gst_caps_copy (gst_pad_get_pad_template_caps (self->src));
+ tmp1 = gst_pad_peer_get_caps (pad);
+ if (tmp1) {
+ caps = gst_caps_intersect (tmp, tmp1);
+ gst_caps_unref (tmp1);
+ gst_caps_unref (tmp);
+ } else {
+ caps = tmp;
+ }
+
+ tmp = caps;
+ tmp1 = gst_pad_peer_get_caps (self->sink0);
+ if (tmp1) {
+ caps = gst_caps_intersect (tmp, tmp1);
+ gst_caps_unref (tmp);
+ gst_caps_unref (tmp1);
+ }
+
+ tmp = caps;
+ tmp1 = gst_pad_peer_get_caps (self->sink1);
+ if (tmp1) {
+ caps = gst_caps_intersect (tmp, tmp1);
+ gst_caps_unref (tmp);
+ gst_caps_unref (tmp1);
+ }
+
+ if (self->sink2) {
+ tmp = caps;
+ tmp1 = gst_pad_peer_get_caps (self->sink2);
+ if (tmp1) {
+ caps = gst_caps_intersect (tmp, tmp1);
+ gst_caps_unref (tmp);
+ gst_caps_unref (tmp1);
+ }
+ }
+ }
+
+ gst_object_unref (self);
+
+ return caps;
+}
+
+static gboolean
+gst_frei0r_mixer_set_caps (GstPad * pad, GstCaps * caps)
+{
+ GstFrei0rMixer *self = GST_FREI0R_MIXER (gst_pad_get_parent (pad));
+ GstFrei0rMixerClass *klass = GST_FREI0R_MIXER_GET_CLASS (self);
+ gboolean ret = TRUE;
+
+ gst_caps_replace (&self->caps, caps);
+
+ if (pad != self->src)
+ ret &= gst_pad_set_caps (self->src, caps);
+ if (pad != self->sink0)
+ ret &= gst_pad_set_caps (self->sink0, caps);
+ if (pad != self->sink1)
+ ret &= gst_pad_set_caps (self->sink1, caps);
+ if (pad != self->sink2 && self->sink2)
+ ret &= gst_pad_set_caps (self->sink2, caps);
+
+ if (ret) {
+ if (!gst_video_format_parse_caps (caps, &self->fmt, &self->width,
+ &self->height)) {
+ ret = FALSE;
+ goto out;
+ }
+
+ if (self->f0r_instance) {
+ klass->ftable->destruct (self->f0r_instance);
+ self->f0r_instance = NULL;
+ }
+
+ self->f0r_instance =
+ gst_frei0r_instance_construct (klass->ftable, klass->properties,
+ klass->n_properties, self->property_cache, self->width, self->height);
+
+ }
+out:
+
+ gst_object_unref (self);
+
+ return ret;
+}
+
+static gboolean
+gst_frei0r_mixer_src_query_duration (GstFrei0rMixer * self, GstQuery * query)
+{
+ gint64 min;
+ gboolean res;
+ GstFormat format;
+ GstIterator *it;
+ gboolean done;
+
+ /* parse format */
+ gst_query_parse_duration (query, &format, NULL);
+
+ min = -1;
+ res = TRUE;
+ done = FALSE;
+
+ /* Take minimum of all durations */
+ it = gst_element_iterate_sink_pads (GST_ELEMENT_CAST (self));
+ while (!done) {
+ GstIteratorResult ires;
+ gpointer item;
+
+ ires = gst_iterator_next (it, &item);
+ switch (ires) {
+ case GST_ITERATOR_DONE:
+ done = TRUE;
+ break;
+ case GST_ITERATOR_OK:
+ {
+ GstPad *pad = GST_PAD_CAST (item);
+ gint64 duration;
+
+ /* ask sink peer for duration */
+ res &= gst_pad_query_peer_duration (pad, &format, &duration);
+ /* take min from all valid return values */
+ if (res) {
+ /* valid unknown length, stop searching */
+ if (duration == -1) {
+ min = duration;
+ done = TRUE;
+ }
+ /* else see if smaller than current min */
+ else if (duration < min)
+ min = duration;
+ }
+ gst_object_unref (pad);
+ break;
+ }
+ case GST_ITERATOR_RESYNC:
+ min = -1;
+ res = TRUE;
+ gst_iterator_resync (it);
+ break;
+ default:
+ res = FALSE;
+ done = TRUE;
+ break;
+ }
+ }
+ gst_iterator_free (it);
+
+ if (res) {
+ /* and store the min */
+ GST_DEBUG_OBJECT (self, "Total duration in format %s: %"
+ GST_TIME_FORMAT, gst_format_get_name (format), GST_TIME_ARGS (min));
+ gst_query_set_duration (query, format, min);
+ }
+
+ return res;
+}
+
+static gboolean
+gst_frei0r_mixer_src_query_latency (GstFrei0rMixer * self, GstQuery * query)
+{
+ GstClockTime min, max;
+ gboolean live;
+ gboolean res;
+ GstIterator *it;
+ gboolean done;
+
+ res = TRUE;
+ done = FALSE;
+
+ live = FALSE;
+ min = 0;
+ max = GST_CLOCK_TIME_NONE;
+
+ /* Take maximum of all latency values */
+ it = gst_element_iterate_sink_pads (GST_ELEMENT_CAST (self));
+ while (!done) {
+ GstIteratorResult ires;
+ gpointer item;
+
+ ires = gst_iterator_next (it, &item);
+ switch (ires) {
+ case GST_ITERATOR_DONE:
+ done = TRUE;
+ break;
+ case GST_ITERATOR_OK:
+ {
+ GstPad *pad = GST_PAD_CAST (item);
+ GstQuery *peerquery;
+ GstClockTime min_cur, max_cur;
+ gboolean live_cur;
+
+ peerquery = gst_query_new_latency ();
+
+ /* Ask peer for latency */
+ res &= gst_pad_peer_query (pad, peerquery);
+
+ /* take max from all valid return values */
+ if (res) {
+ gst_query_parse_latency (peerquery, &live_cur, &min_cur, &max_cur);
+
+ if (min_cur > min)
+ min = min_cur;
+
+ if (max_cur != GST_CLOCK_TIME_NONE &&
+ ((max != GST_CLOCK_TIME_NONE && max_cur > max) ||
+ (max == GST_CLOCK_TIME_NONE)))
+ max = max_cur;
+
+ live = live || live_cur;
+ }
+
+ gst_query_unref (peerquery);
+ gst_object_unref (pad);
+ break;
+ }
+ case GST_ITERATOR_RESYNC:
+ live = FALSE;
+ min = 0;
+ max = GST_CLOCK_TIME_NONE;
+ res = TRUE;
+ gst_iterator_resync (it);
+ break;
+ default:
+ res = FALSE;
+ done = TRUE;
+ break;
+ }
+ }
+ gst_iterator_free (it);
+
+ if (res) {
+ /* store the results */
+ GST_DEBUG_OBJECT (self, "Calculated total latency: live %s, min %"
+ GST_TIME_FORMAT ", max %" GST_TIME_FORMAT,
+ (live ? "yes" : "no"), GST_TIME_ARGS (min), GST_TIME_ARGS (max));
+ gst_query_set_latency (query, live, min, max);
+ }
+
+ return res;
+}
+
+static gboolean
+gst_frei0r_mixer_src_query (GstPad * pad, GstQuery * query)
+{
+ GstFrei0rMixer *self = GST_FREI0R_MIXER (gst_pad_get_parent (pad));
+ gboolean ret = FALSE;
+
+ switch (GST_QUERY_TYPE (query)) {
+ case GST_QUERY_POSITION:
+ ret = gst_pad_query (self->sink0, query);
+ break;
+ case GST_QUERY_DURATION:
+ ret = gst_frei0r_mixer_src_query_duration (self, query);
+ break;
+ case GST_QUERY_LATENCY:
+ ret = gst_frei0r_mixer_src_query_latency (self, query);
+ break;
+ default:
+ ret = gst_pad_query_default (pad, query);
+ break;
+ }
+
+ gst_object_unref (self);
+
+ return ret;
+}
+
+static gboolean
+gst_frei0r_mixer_sink_query (GstPad * pad, GstQuery * query)
+{
+ GstFrei0rMixer *self = GST_FREI0R_MIXER (gst_pad_get_parent (pad));
+ gboolean ret = gst_pad_query (self->src, query);
+
+ gst_object_unref (self);
+
+ return ret;
+}
+
+static gboolean
+forward_event_func (GstPad * pad, GValue * ret, GstEvent * event)
+{
+ gst_event_ref (event);
+ GST_LOG_OBJECT (pad, "About to send event %s", GST_EVENT_TYPE_NAME (event));
+ if (!gst_pad_push_event (pad, event)) {
+ g_value_set_boolean (ret, FALSE);
+ GST_WARNING_OBJECT (pad, "Sending event %p (%s) failed.",
+ event, GST_EVENT_TYPE_NAME (event));
+ } else {
+ GST_LOG_OBJECT (pad, "Sent event %p (%s).",
+ event, GST_EVENT_TYPE_NAME (event));
+ }
+ gst_object_unref (pad);
+ return TRUE;
+}
+
+static gboolean
+forward_event (GstFrei0rMixer * self, GstEvent * event)
+{
+ GstIterator *it;
+ GValue vret = { 0 };
+
+ GST_LOG_OBJECT (self, "Forwarding event %p (%s)", event,
+ GST_EVENT_TYPE_NAME (event));
+
+ g_value_init (&vret, G_TYPE_BOOLEAN);
+ g_value_set_boolean (&vret, TRUE);
+ it = gst_element_iterate_sink_pads (GST_ELEMENT_CAST (self));
+ gst_iterator_fold (it, (GstIteratorFoldFunction) forward_event_func, &vret,
+ event);
+ gst_iterator_free (it);
+ gst_event_unref (event);
+
+ return g_value_get_boolean (&vret);
+}
+
+static gboolean
+gst_frei0r_mixer_src_event (GstPad * pad, GstEvent * event)
+{
+ GstFrei0rMixer *self = GST_FREI0R_MIXER (gst_pad_get_parent (pad));
+ gboolean ret = FALSE;
+
+ switch (GST_EVENT_TYPE (event)) {
+ case GST_EVENT_QOS:
+ /* QoS might be tricky */
+ ret = FALSE;
+ break;
+ case GST_EVENT_SEEK:
+ {
+ GstSeekFlags flags;
+
+ /* parse the seek parameters */
+ gst_event_parse_seek (event, NULL, NULL, &flags, NULL, NULL, NULL, NULL);
+
+ /* check if we are flushing */
+ if (flags & GST_SEEK_FLAG_FLUSH) {
+ /* make sure we accept nothing anymore and return WRONG_STATE */
+ gst_collect_pads_set_flushing (self->collect, TRUE);
+
+ /* flushing seek, start flush downstream, the flush will be done
+ * when all pads received a FLUSH_STOP. */
+ gst_pad_push_event (self->src, gst_event_new_flush_start ());
+ }
+
+ ret = forward_event (self, event);
+ break;
+ }
+ case GST_EVENT_NAVIGATION:
+ /* navigation is rather pointless. */
+ ret = FALSE;
+ break;
+ default:
+ /* just forward the rest for now */
+ ret = forward_event (self, event);
+ break;
+ }
+
+ gst_object_unref (self);
+
+ return ret;
+}
+
+static gboolean
+gst_frei0r_mixer_sink0_event (GstPad * pad, GstEvent * event)
+{
+ GstFrei0rMixer *self = GST_FREI0R_MIXER (gst_pad_get_parent (pad));
+ gboolean ret = FALSE;
+
+ GST_DEBUG ("Got %s event on pad %s:%s", GST_EVENT_TYPE_NAME (event),
+ GST_DEBUG_PAD_NAME (pad));
+
+ switch (GST_EVENT_TYPE (event)) {
+ case GST_EVENT_NEWSEGMENT:
+ gst_event_replace (&self->newseg_event, event);
+ break;
+ default:
+ break;
+ }
+
+ /* now GstCollectPads can take care of the rest, e.g. EOS */
+ ret = self->collect_event (pad, event);
+
+ gst_object_unref (self);
+
+ return ret;
+}
+
+static GstFlowReturn
+gst_frei0r_mixer_collected (GstCollectPads * pads, GstFrei0rMixer * self)
+{
+ GstBuffer *inbuf0 = NULL, *inbuf1 = NULL, *inbuf2 = NULL;
+ GstBuffer *outbuf = NULL;
+ GstFlowReturn ret = GST_FLOW_OK;
+ GSList *l;
+ GstFrei0rMixerClass *klass = GST_FREI0R_MIXER_GET_CLASS (self);
+ gdouble time;
+
+ if (G_UNLIKELY (!self->f0r_instance))
+ return GST_FLOW_NOT_NEGOTIATED;
+
+ if (self->newseg_event) {
+ gst_pad_push_event (self->src, self->newseg_event);
+ self->newseg_event = NULL;
+ }
+
+ if ((ret =
+ gst_pad_alloc_buffer_and_set_caps (self->src, GST_BUFFER_OFFSET_NONE,
+ gst_video_format_get_size (self->fmt, self->width, self->height),
+ GST_PAD_CAPS (self->src), &outbuf)) != GST_FLOW_OK)
+ return ret;
+
+ for (l = pads->data; l; l = l->next) {
+ GstCollectData *cdata = l->data;
+
+ if (cdata->pad == self->sink0)
+ inbuf0 = gst_collect_pads_pop (pads, cdata);
+ else if (cdata->pad == self->sink1)
+ inbuf1 = gst_collect_pads_pop (pads, cdata);
+ else if (cdata->pad == self->sink2)
+ inbuf2 = gst_collect_pads_pop (pads, cdata);
+ }
+
+ if (!inbuf0 || !inbuf1 || (!inbuf2 && self->sink2))
+ goto eos;
+
+ gst_buffer_copy_metadata (outbuf, inbuf0,
+ GST_BUFFER_COPY_FLAGS | GST_BUFFER_COPY_TIMESTAMPS);
+ time = ((gdouble) GST_BUFFER_TIMESTAMP (outbuf)) / GST_SECOND;
+
+ klass->ftable->update2 (self->f0r_instance, time,
+ (const guint32 *) GST_BUFFER_DATA (inbuf0),
+ (const guint32 *) GST_BUFFER_DATA (inbuf1),
+ (inbuf2) ? (const guint32 *) GST_BUFFER_DATA (inbuf2) : NULL,
+ (guint32 *) GST_BUFFER_DATA (outbuf));
+
+ gst_buffer_unref (inbuf0);
+ gst_buffer_unref (inbuf1);
+ if (inbuf2)
+ gst_buffer_unref (inbuf2);
+
+ ret = gst_pad_push (self->src, outbuf);
+
+ return ret;
+
+eos:
+ {
+ GST_DEBUG_OBJECT (self, "no data available, must be EOS");
+ gst_buffer_unref (outbuf);
+
+ if (inbuf0)
+ gst_buffer_unref (inbuf0);
+ if (inbuf1)
+ gst_buffer_unref (inbuf1);
+ if (inbuf2)
+ gst_buffer_unref (inbuf2);
+
+ gst_pad_push_event (self->src, gst_event_new_eos ());
+ return GST_FLOW_UNEXPECTED;
+ }
+}
+
+static void
+gst_frei0r_mixer_class_init (GstFrei0rMixerClass * klass,
+ GstFrei0rMixerClassData * class_data)
+{
+ GObjectClass *gobject_class = (GObjectClass *) klass;
+ GstElementClass *gstelement_class = (GstElementClass *) klass;
+ GstPadTemplate *templ;
+ GstCaps *caps;
+ gchar *author;
+
+ klass->ftable = &class_data->ftable;
+ klass->info = &class_data->info;
+
+ gobject_class->finalize = gst_frei0r_mixer_finalize;
+ gobject_class->set_property = gst_frei0r_mixer_set_property;
+ gobject_class->get_property = gst_frei0r_mixer_get_property;
+
+ klass->n_properties = klass->info->num_params;
+ klass->properties = g_new0 (GstFrei0rProperty, klass->n_properties);
+
+ gst_frei0r_klass_install_properties (gobject_class, klass->ftable,
+ klass->properties, klass->n_properties);
+
+ author =
+ g_strdup_printf
+ ("Sebastian Dröge <sebastian.droege@collabora.co.uk>, %s",
+ class_data->info.author);
+ gst_element_class_set_details_simple (gstelement_class, class_data->info.name,
+ "Filter/Editor/Video", class_data->info.explanation, author);
+ g_free (author);
+
+ caps = gst_frei0r_caps_from_color_model (class_data->info.color_model);
+
+ templ =
+ gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
+ gst_caps_ref (caps));
+ gst_element_class_add_pad_template (gstelement_class, templ);
+
+ templ =
+ gst_pad_template_new ("sink_0", GST_PAD_SINK, GST_PAD_ALWAYS,
+ gst_caps_ref (caps));
+ gst_element_class_add_pad_template (gstelement_class, templ);
+
+ templ =
+ gst_pad_template_new ("sink_1", GST_PAD_SINK, GST_PAD_ALWAYS,
+ gst_caps_ref (caps));
+ gst_element_class_add_pad_template (gstelement_class, templ);
+
+ if (klass->info->plugin_type == F0R_PLUGIN_TYPE_MIXER3) {
+ templ =
+ gst_pad_template_new ("sink_2", GST_PAD_SINK, GST_PAD_ALWAYS,
+ gst_caps_ref (caps));
+ gst_element_class_add_pad_template (gstelement_class, templ);
+ }
+ gst_caps_unref (caps);
+
+ gstelement_class->change_state =
+ GST_DEBUG_FUNCPTR (gst_frei0r_mixer_change_state);
+}
+
+static void
+gst_frei0r_mixer_init (GstFrei0rMixer * self, GstFrei0rMixerClass * klass)
+{
+ self->property_cache =
+ gst_frei0r_property_cache_init (klass->properties, klass->n_properties);
+
+ self->collect = gst_collect_pads_new ();
+ gst_collect_pads_set_function (self->collect,
+ (GstCollectPadsFunction) gst_frei0r_mixer_collected, self);
+
+ self->src =
+ gst_pad_new_from_template (gst_element_class_get_pad_template
+ (GST_ELEMENT_CLASS (klass), "src"), "src");
+ gst_pad_set_getcaps_function (self->src,
+ GST_DEBUG_FUNCPTR (gst_frei0r_mixer_get_caps));
+ gst_pad_set_setcaps_function (self->src,
+ GST_DEBUG_FUNCPTR (gst_frei0r_mixer_set_caps));
+ gst_pad_set_query_function (self->src,
+ GST_DEBUG_FUNCPTR (gst_frei0r_mixer_src_query));
+ gst_pad_set_event_function (self->src,
+ GST_DEBUG_FUNCPTR (gst_frei0r_mixer_src_event));
+ gst_element_add_pad (GST_ELEMENT_CAST (self), self->src);
+
+ self->sink0 =
+ gst_pad_new_from_template (gst_element_class_get_pad_template
+ (GST_ELEMENT_CLASS (klass), "sink_0"), "sink_0");
+ gst_pad_set_getcaps_function (self->sink0,
+ GST_DEBUG_FUNCPTR (gst_frei0r_mixer_get_caps));
+ gst_pad_set_setcaps_function (self->sink0,
+ GST_DEBUG_FUNCPTR (gst_frei0r_mixer_set_caps));
+ gst_pad_set_query_function (self->sink0,
+ GST_DEBUG_FUNCPTR (gst_frei0r_mixer_sink_query));
+ gst_collect_pads_add_pad (self->collect, self->sink0,
+ sizeof (GstCollectData));
+ self->collect_event = (GstPadEventFunction) GST_PAD_EVENTFUNC (self->sink0);
+ gst_pad_set_event_function (self->sink0,
+ GST_DEBUG_FUNCPTR (gst_frei0r_mixer_sink0_event));
+ gst_element_add_pad (GST_ELEMENT_CAST (self), self->sink0);
+
+ self->sink1 =
+ gst_pad_new_from_template (gst_element_class_get_pad_template
+ (GST_ELEMENT_CLASS (klass), "sink_1"), "sink_1");
+ gst_pad_set_getcaps_function (self->sink1,
+ GST_DEBUG_FUNCPTR (gst_frei0r_mixer_get_caps));
+ gst_pad_set_setcaps_function (self->sink1,
+ GST_DEBUG_FUNCPTR (gst_frei0r_mixer_set_caps));
+ gst_pad_set_query_function (self->sink0,
+ GST_DEBUG_FUNCPTR (gst_frei0r_mixer_sink_query));
+ gst_collect_pads_add_pad (self->collect, self->sink1,
+ sizeof (GstCollectData));
+ gst_element_add_pad (GST_ELEMENT_CAST (self), self->sink1);
+
+ if (klass->info->plugin_type == F0R_PLUGIN_TYPE_MIXER3) {
+ self->sink2 =
+ gst_pad_new_from_template (gst_element_class_get_pad_template
+ (GST_ELEMENT_CLASS (klass), "sink_2"), "sink_2");
+ gst_pad_set_getcaps_function (self->sink2,
+ GST_DEBUG_FUNCPTR (gst_frei0r_mixer_get_caps));
+ gst_pad_set_setcaps_function (self->sink2,
+ GST_DEBUG_FUNCPTR (gst_frei0r_mixer_set_caps));
+ gst_pad_set_query_function (self->sink0,
+ GST_DEBUG_FUNCPTR (gst_frei0r_mixer_sink_query));
+ gst_collect_pads_add_pad (self->collect, self->sink2,
+ sizeof (GstCollectData));
+ gst_element_add_pad (GST_ELEMENT_CAST (self), self->sink2);
+ }
+
+}
+
+gboolean
+gst_frei0r_mixer_register (GstPlugin * plugin, const f0r_plugin_info_t * info,
+ const GstFrei0rFuncTable * ftable)
+{
+ GTypeInfo typeinfo = {
+ sizeof (GstFrei0rMixerClass),
+ NULL,
+ NULL,
+ (GClassInitFunc) gst_frei0r_mixer_class_init,
+ NULL,
+ NULL,
+ sizeof (GstFrei0rMixer),
+ 0,
+ (GInstanceInitFunc) gst_frei0r_mixer_init
+ };
+ GType type;
+ gchar *type_name, *tmp;
+ GstFrei0rMixerClassData *class_data;
+
+ if (ftable->update2 == NULL)
+ return FALSE;
+
+ tmp = g_strdup_printf ("frei0r-mixer-%s", info->name);
+ type_name = g_ascii_strdown (tmp, -1);
+ g_free (tmp);
+ g_strcanon (type_name, G_CSET_A_2_Z G_CSET_a_2_z G_CSET_DIGITS "-+", '-');
+
+ if (g_type_from_name (type_name)) {
+ GST_WARNING ("Type '%s' already exists", type_name);
+ return FALSE;
+ }
+
+ if (!ftable->init ()) {
+ GST_ERROR ("Initializing plugin failed");
+ return FALSE;
+ }
+
+ class_data = g_new0 (GstFrei0rMixerClassData, 1);
+ memcpy (&class_data->info, info, sizeof (f0r_plugin_info_t));
+ memcpy (&class_data->ftable, ftable, sizeof (GstFrei0rFuncTable));
+ typeinfo.class_data = class_data;
+
+ type = g_type_register_static (GST_TYPE_ELEMENT, type_name, &typeinfo, 0);
+ return (gst_element_register (plugin, type_name, GST_RANK_NONE, type));
+}
projects / platform / upstream / gstreamer.git / commitdiff