gstreamer/ext/metadata/metadataparsexmp.c
Edgard Lima f17824d0d1 Added support for PNG/XMP. Indentation. And fixed pull mode to parse the file.
Original commit message from CVS:
Added support for PNG/XMP. Indentation. And fixed pull mode to parse the file.
2007-11-02 16:50:42 +00:00

144 lines
3.8 KiB
C

/*
* GStreamer
* Copyright 2007 Edgard Lima <edgard.lima@indt.org.br>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Alternatively, the contents of this file may be used under the
* GNU Lesser General Public License Version 2.1 (the "LGPL"), in
* which case the following provisions apply instead of the ones
* mentioned above:
*
* 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.
*/
#include "metadataparsexmp.h"
#include "metadataparseutil.h"
GST_DEBUG_CATEGORY (gst_metadata_parse_xmp_debug);
#define GST_CAT_DEFAULT gst_metadata_parse_xmp_debug
#define GST_TAG_XMP "xmp"
void
metadataparse_xmp_tags_register (void)
{
gst_tag_register (GST_TAG_XMP, GST_TAG_FLAG_META,
GST_TYPE_BUFFER, GST_TAG_XMP, "xmp metadata chunk", NULL);
}
#ifndef HAVE_XMP
void
metadataparse_xmp_tag_list_add (GstTagList * taglist, GstTagMergeMode mode,
GstAdapter * adapter)
{
GST_LOG ("XMP not defined, here I should send just one tag as whole chunk");
metadataparse_util_tag_list_add_chunk (taglist, mode, GST_TAG_XMP, adapter);
}
gboolean
metadataparse_xmp_init (void)
{
return TRUE;
}
void
metadataparse_xmp_dispose (void)
{
return;
}
#else /* ifndef HAVE_XMP */
#include <xmp.h>
gboolean
metadataparse_xmp_init (void)
{
return xmp_init ();
}
void
metadataparse_xmp_dispose (void)
{
xmp_terminate ();
}
void
metadataparse_xmp_tag_list_add (GstTagList * taglist, GstTagMergeMode mode,
GstAdapter * adapter)
{
const guint8 *buf;
guint32 size;
XmpPtr *xmp = NULL;
XmpStringPtr xmp_str = NULL;
if (adapter == NULL || (size = gst_adapter_available (adapter)) == 0) {
goto done;
}
/* add chunk tag */
metadataparse_util_tag_list_add_chunk (taglist, mode, GST_TAG_XMP, adapter);
buf = gst_adapter_peek (adapter, size);
xmp = xmp_new (buf, size);
if (!xmp)
goto done;
xmp_str = xmp_string_new ();
if (!xmp_str)
goto done;
xmp_serialize (xmp, xmp_str, XMP_SERIAL_ENCODEUTF8, 2);
GST_LOG (xmp_string_cstr (xmp_str));
done:
if (xmp_str) {
xmp_string_free (xmp_str);
}
if (xmp) {
xmp_free (xmp);
}
return;
}
#endif /* else (ifndef HAVE_XMP) */