mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-08 21:28:45 +00:00
794ad7ca1b
Original commit message from CVS: Fixed get_range bug when injecting and stripping. And mux is almost done now.
130 lines
4.1 KiB
C
130 lines
4.1 KiB
C
/*
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* GStreamer
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* Copyright 2007 Edgard Lima <edgard.lima@indt.org.br>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Alternatively, the contents of this file may be used under the
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* GNU Lesser General Public License Version 2.1 (the "LGPL"), in
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* which case the following provisions apply instead of the ones
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* mentioned above:
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __METADATA_H__
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#define __METADATA_H__
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#include <gst/base/gstadapter.h>
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#include "metadatatypes.h"
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#include "metadataparsejpeg.h"
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#include "metadatamuxjpeg.h"
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#include "metadataparsepng.h"
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#include "metadatamuxpng.h"
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G_BEGIN_DECLS
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typedef enum _tag_MetaOption
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{
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META_OPT_EXIF = (1 << 0),
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META_OPT_IPTC = (1 << 1),
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META_OPT_XMP = (1 << 2),
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META_OPT_ALL = (1 << 3) - 1
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} MetaOption;
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typedef enum _tag_MetaState
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{
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STATE_NULL,
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STATE_READING,
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STATE_DONE
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} MetaState;
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typedef enum _tag_ImageType
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{
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IMG_NONE,
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IMG_JPEG,
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IMG_PNG
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} ImageType;
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typedef struct _tag_MetaData
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{
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MetaState state;
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ImageType img_type;
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MetaOption option;
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guint32 offset_orig; /* offset since begining of stream */
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union
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{
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JpegParseData jpeg_parse;
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JpegMuxData jpeg_mux;
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PngParseData png_parse;
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PngMuxData png_mux;
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} format_data;
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GstAdapter * exif_adapter;
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GstAdapter * iptc_adapter;
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GstAdapter * xmp_adapter;
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MetadataChunkArray strip_chunks;
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MetadataChunkArray inject_chunks;
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gboolean parse; /* true - parsing, false - muxing */
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} MetaData;
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#define META_DATA_IMG_TYPE(p) (p).img_type
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#define META_DATA_OPTION(p) (p).option
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#define set_meta_option(p, m) do { (p).option = (p).option | (m); } while(FALSE)
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#define unset_meta_option(p, m) do { (p).option = (p).option & ~(m); } while(FALSE)
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extern void metadata_init (MetaData * meta_data, gboolean parse);
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/*
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* offset: number of bytes that MUST be jumped after current "buf" pointer
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* next_size: number of minimum amount of bytes required on next step.
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* if less than this is provided, the return will be 1 for sure.
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* and the offset will be 0 (zero)
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* return:
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* -1 -> error
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* 0 -> done
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* 1 -> need more data
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*/
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extern int
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metadata_parse (MetaData * meta_data, const guint8 * buf,
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guint32 bufsize, guint32 * next_offset, guint32 * next_size);
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extern void metadata_lazy_update (MetaData * meta_data);
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extern void metadata_dispose (MetaData * meta_data);
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G_END_DECLS
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#endif /* __METADATA_H__ */
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