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/* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <string.h>
#include "mxfessence.h"
GST_DEBUG_CATEGORY_EXTERN (mxf_debug);
#define GST_CAT_DEFAULT mxf_debug
static GSList *_mxf_essence_element_handler_registry = NULL;
void
mxf_essence_element_handler_register (const MXFEssenceElementHandler * handler)
{
_mxf_essence_element_handler_registry =
g_slist_prepend (_mxf_essence_element_handler_registry,
(gpointer) handler);
}
const MXFEssenceElementHandler *
mxf_essence_element_handler_find (const MXFMetadataTimelineTrack * track)
{
GSList *l;
const MXFEssenceElementHandler *ret = NULL;
for (l = _mxf_essence_element_handler_registry; l; l = l->next) {
MXFEssenceElementHandler *current = l->data;
if (current->handles_track (track)) {
ret = current;
}
}
return ret;
}
static GList *_essence_element_writer_registry = NULL;
static GPtrArray *_essence_element_writer_pad_templates = NULL;
void
mxf_essence_element_writer_register (const MXFEssenceElementWriter * writer)
{
_essence_element_writer_registry =
g_list_prepend (_essence_element_writer_registry, (gpointer) writer);
if (!_essence_element_writer_pad_templates)
_essence_element_writer_pad_templates = g_ptr_array_new ();
if (_essence_element_writer_pad_templates->len > 0 &&
g_ptr_array_index (_essence_element_writer_pad_templates,
_essence_element_writer_pad_templates->len - 1) == NULL)
g_ptr_array_remove_index (_essence_element_writer_pad_templates,
_essence_element_writer_pad_templates->len - 1);
g_ptr_array_add (_essence_element_writer_pad_templates,
(gpointer) writer->pad_template);
}
const GstPadTemplate **
mxf_essence_element_writer_get_pad_templates (void)
{
if (!_essence_element_writer_pad_templates
|| _essence_element_writer_pad_templates->len == 0)
return NULL;
if (g_ptr_array_index (_essence_element_writer_pad_templates,
_essence_element_writer_pad_templates->len - 1))
g_ptr_array_add (_essence_element_writer_pad_templates, NULL);
return (const GstPadTemplate **) _essence_element_writer_pad_templates->pdata;
}
const MXFEssenceElementWriter *
mxf_essence_element_writer_find (const GstPadTemplate * templ)
{
GList *l = _essence_element_writer_registry;
for (; l; l = l->next) {
MXFEssenceElementWriter *writer = l->data;
if (writer->pad_template == templ)
return writer;
}
return NULL;
}
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