mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-09 10:59:39 +00:00
108 lines
3.2 KiB
C
108 lines
3.2 KiB
C
/* 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;
|
|
}
|