/* 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               ();

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    desc_dec_specific_info_free                (DecoderSpecificInfoDescriptor *dsid);

void    desc_dec_specific_info_alloc_data          (DecoderSpecificInfoDescriptor *dsid,

                                                    guint32 size);

#endif /* __DESCRIPTORS_H__ */