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/* Quicktime muxer plugin for GStreamer
* Copyright (C) 2008 Thiago Sousa Santos <thiagoss@embedded.ufcg.edu.br>
*
* 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.
*/
/*
* Unless otherwise indicated, Source Code is licensed under MIT license.
* See further explanation attached in License Statement (distributed in the file
* LICENSE).
*
* 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.
*/
#ifndef __DESCRIPTORS_H__
#define __DESCRIPTORS_H__
#include <glib.h>
#include <string.h>
#include "properties.h"
/*
* Tags for descriptor (each kind is represented by a number, instead of fourcc as in atoms)
*/
#define OBJECT_DESC_TAG 0x01
#define INIT_OBJECT_DESC_TAG 0x02
#define ES_DESCRIPTOR_TAG 0x03
#define DECODER_CONFIG_DESC_TAG 0x04
#define DECODER_SPECIFIC_INFO_TAG 0x05
#define SL_CONFIG_DESC_TAG 0x06
#define ES_ID_INC_TAG 0x0E
#define MP4_INIT_OBJECT_DESC_TAG 0x10
#define ESDS_OBJECT_TYPE_MPEG1_P3 0x6B
#define ESDS_OBJECT_TYPE_MPEG2_P7_MAIN 0x66
#define ESDS_OBJECT_TYPE_MPEG4_P7_LC 0x67
#define ESDS_OBJECT_TYPE_MPEG4_P7_SSR 0x68
#define ESDS_OBJECT_TYPE_MPEG4_P2 0x20
#define ESDS_OBJECT_TYPE_MPEG4_P3 0x40
#define ESDS_STREAM_TYPE_VISUAL 0x04
#define ESDS_STREAM_TYPE_AUDIO 0x05
typedef struct _BaseDescriptor
{
guint8 tag;
/* the first bit of each byte indicates if the next byte should be used */
guint8 size[4];
} BaseDescriptor;
typedef struct _SLConfigDescriptor
{
BaseDescriptor base;
guint8 predefined; /* everything is supposed predefined */
} SLConfigDescriptor;
typedef struct _DecoderSpecificInfoDescriptor
{
BaseDescriptor base;
guint32 length;
guint8 *data;
} DecoderSpecificInfoDescriptor;
typedef struct _DecoderConfigDescriptor {
BaseDescriptor base;
guint8 object_type;
/* following are condensed into streamType:
* bit(6) streamType;
* bit(1) upStream;
* const bit(1) reserved=1;
*/
guint8 stream_type;
guint8 buffer_size_DB[3];
guint32 max_bitrate;
guint32 avg_bitrate;
DecoderSpecificInfoDescriptor *dec_specific_info;
} DecoderConfigDescriptor;
typedef struct _ESDescriptor
{
BaseDescriptor base;
guint16 id;
/* flags contains the following:
* bit(1) streamDependenceFlag;
* bit(1) URL_Flag;
* bit(1) OCRstreamFlag;
* bit(5) streamPriority;
*/
guint8 flags;
guint16 depends_on_es_id;
guint8 url_length; /* only if URL_flag is set */
guint8 *url_string; /* size is url_length */
guint16 ocr_es_id; /* only if OCRstreamFlag is set */
DecoderConfigDescriptor dec_conf_desc;
SLConfigDescriptor sl_conf_desc;
/* optional remainder of ESDescriptor is not used */
} ESDescriptor;
/* --- FUNCTIONS --- */
void desc_es_init (ESDescriptor *es);
ESDescriptor *desc_es_descriptor_new (void);
guint64 desc_es_descriptor_copy_data (ESDescriptor *es, guint8 **buffer,
guint64 *size, guint64 *offset);
void desc_es_descriptor_clear (ESDescriptor *es);
DecoderSpecificInfoDescriptor *desc_dec_specific_info_new(void);
void desc_dec_specific_info_free (DecoderSpecificInfoDescriptor *dsid);
void desc_dec_specific_info_alloc_data (DecoderSpecificInfoDescriptor *dsid,
guint32 size);
#endif /* __DESCRIPTORS_H__ */
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