blob: ba0d4053244b911e843b7111d4f4bc836e77339d [file] [log] [blame]
/* GStreamer
* Copyright (C) 2009,2010 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
#include "gstfrei0r.h"
#include "gstfrei0rfilter.h"
GST_DEBUG_CATEGORY_EXTERN (frei0r_debug);
#define GST_CAT_DEFAULT frei0r_debug
typedef struct
{
f0r_plugin_info_t info;
GstFrei0rFuncTable ftable;
} GstFrei0rFilterClassData;
static gboolean
gst_frei0r_filter_set_caps (GstBaseTransform * trans, GstCaps * incaps,
GstCaps * outcaps)
{
GstFrei0rFilter *self = GST_FREI0R_FILTER (trans);
GstFrei0rFilterClass *klass = GST_FREI0R_FILTER_GET_CLASS (trans);
GstVideoInfo info;
gboolean destroy_f0r_instance = FALSE;
gst_video_info_init (&info);
if (!gst_video_info_from_caps (&info, incaps))
return FALSE;
if (self->width != info.width || self->height != info.height)
destroy_f0r_instance = TRUE;
self->width = info.width;
self->height = info.height;
if (self->f0r_instance && destroy_f0r_instance) {
klass->ftable->destruct (self->f0r_instance);
self->f0r_instance = NULL;
}
return TRUE;
}
static gboolean
gst_frei0r_filter_stop (GstBaseTransform * trans)
{
GstFrei0rFilter *self = GST_FREI0R_FILTER (trans);
GstFrei0rFilterClass *klass = GST_FREI0R_FILTER_GET_CLASS (trans);
if (self->f0r_instance) {
klass->ftable->destruct (self->f0r_instance);
self->f0r_instance = NULL;
}
self->width = self->height = 0;
return TRUE;
}
static void
gst_frei0r_filter_before_transform (GstBaseTransform * trans,
GstBuffer * buffer)
{
GstClockTime timestamp;
GstFrei0rFilter *self = GST_FREI0R_FILTER (trans);
timestamp = GST_BUFFER_TIMESTAMP (buffer);
timestamp =
gst_segment_to_stream_time (&trans->segment, GST_FORMAT_TIME, timestamp);
GST_DEBUG_OBJECT (self, "sync to %" GST_TIME_FORMAT,
GST_TIME_ARGS (timestamp));
if (GST_CLOCK_TIME_IS_VALID (timestamp))
gst_object_sync_values (GST_OBJECT (self), timestamp);
}
static GstFlowReturn
gst_frei0r_filter_transform (GstBaseTransform * trans, GstBuffer * inbuf,
GstBuffer * outbuf)
{
GstFrei0rFilter *self = GST_FREI0R_FILTER (trans);
GstFrei0rFilterClass *klass = GST_FREI0R_FILTER_GET_CLASS (trans);
gdouble time;
GstMapInfo inmap, outmap;
if (G_UNLIKELY (self->width <= 0 || self->height <= 0))
return GST_FLOW_NOT_NEGOTIATED;
if (G_UNLIKELY (!self->f0r_instance)) {
self->f0r_instance =
gst_frei0r_instance_construct (klass->ftable, klass->properties,
klass->n_properties, self->property_cache, self->width, self->height);
if (G_UNLIKELY (!self->f0r_instance))
return GST_FLOW_ERROR;
}
time = ((gdouble) GST_BUFFER_TIMESTAMP (inbuf)) / GST_SECOND;
GST_OBJECT_LOCK (self);
gst_buffer_map (inbuf, &inmap, GST_MAP_READ);
gst_buffer_map (outbuf, &outmap, GST_MAP_WRITE);
if (klass->ftable->update2)
klass->ftable->update2 (self->f0r_instance, time,
(const guint32 *) inmap.data, NULL, NULL, (guint32 *) outmap.data);
else
klass->ftable->update (self->f0r_instance, time,
(const guint32 *) inmap.data, (guint32 *) outmap.data);
gst_buffer_unmap (outbuf, &outmap);
gst_buffer_unmap (inbuf, &inmap);
GST_OBJECT_UNLOCK (self);
return GST_FLOW_OK;
}
static void
gst_frei0r_filter_finalize (GObject * object)
{
GstFrei0rFilter *self = GST_FREI0R_FILTER (object);
GstFrei0rFilterClass *klass = GST_FREI0R_FILTER_GET_CLASS (object);
if (self->f0r_instance) {
klass->ftable->destruct (self->f0r_instance);
self->f0r_instance = NULL;
}
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_filter_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstFrei0rFilter *self = GST_FREI0R_FILTER (object);
GstFrei0rFilterClass *klass = GST_FREI0R_FILTER_GET_CLASS (object);
GST_OBJECT_LOCK (self);
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);
GST_OBJECT_UNLOCK (self);
}
static void
gst_frei0r_filter_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstFrei0rFilter *self = GST_FREI0R_FILTER (object);
GstFrei0rFilterClass *klass = GST_FREI0R_FILTER_GET_CLASS (object);
GST_OBJECT_LOCK (self);
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);
GST_OBJECT_UNLOCK (self);
}
static void
gst_frei0r_filter_class_init (GstFrei0rFilterClass * klass,
GstFrei0rFilterClassData * class_data)
{
GObjectClass *gobject_class = (GObjectClass *) klass;
GstElementClass *gstelement_class = (GstElementClass *) klass;
GstBaseTransformClass *gsttrans_class = (GstBaseTransformClass *) klass;
GstPadTemplate *templ;
const gchar *desc;
GstCaps *caps;
gchar *author;
klass->ftable = &class_data->ftable;
klass->info = &class_data->info;
gobject_class->finalize = gst_frei0r_filter_finalize;
gobject_class->set_property = gst_frei0r_filter_set_property;
gobject_class->get_property = gst_frei0r_filter_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);
desc = class_data->info.explanation;
if (desc == NULL || *desc == '\0')
desc = "No details";
gst_element_class_set_metadata (gstelement_class, class_data->info.name,
"Filter/Effect/Video", desc, 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", GST_PAD_SINK, GST_PAD_ALWAYS, caps);
gst_element_class_add_pad_template (gstelement_class, templ);
gst_caps_unref (caps);
gsttrans_class->set_caps = GST_DEBUG_FUNCPTR (gst_frei0r_filter_set_caps);
gsttrans_class->stop = GST_DEBUG_FUNCPTR (gst_frei0r_filter_stop);
gsttrans_class->transform = GST_DEBUG_FUNCPTR (gst_frei0r_filter_transform);
gsttrans_class->before_transform =
GST_DEBUG_FUNCPTR (gst_frei0r_filter_before_transform);
}
static void
gst_frei0r_filter_init (GstFrei0rFilter * self, GstFrei0rFilterClass * klass)
{
self->property_cache =
gst_frei0r_property_cache_init (klass->properties, klass->n_properties);
gst_pad_use_fixed_caps (GST_BASE_TRANSFORM_SINK_PAD (self));
gst_pad_use_fixed_caps (GST_BASE_TRANSFORM_SRC_PAD (self));
}
GstFrei0rPluginRegisterReturn
gst_frei0r_filter_register (GstPlugin * plugin, const gchar * vendor,
const f0r_plugin_info_t * info, const GstFrei0rFuncTable * ftable)
{
GTypeInfo typeinfo = {
sizeof (GstFrei0rFilterClass),
NULL,
NULL,
(GClassInitFunc) gst_frei0r_filter_class_init,
NULL,
NULL,
sizeof (GstFrei0rFilter),
0,
(GInstanceInitFunc) gst_frei0r_filter_init
};
GType type;
gchar *type_name, *tmp;
GstFrei0rFilterClassData *class_data;
GstFrei0rPluginRegisterReturn ret = GST_FREI0R_PLUGIN_REGISTER_RETURN_FAILED;
if (vendor)
tmp = g_strdup_printf ("frei0r-filter-%s-%s", vendor, info->name);
else
tmp = g_strdup_printf ("frei0r-filter-%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_DEBUG ("Type '%s' already exists", type_name);
return GST_FREI0R_PLUGIN_REGISTER_RETURN_ALREADY_REGISTERED;
}
class_data = g_new0 (GstFrei0rFilterClassData, 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_VIDEO_FILTER, type_name, &typeinfo, 0);
if (gst_element_register (plugin, type_name, GST_RANK_NONE, type))
ret = GST_FREI0R_PLUGIN_REGISTER_RETURN_OK;
g_free (type_name);
return ret;
}