/*****************************************************************************
* mpeg4_iod.h: ISO 14496-1 IOD and parsers
*****************************************************************************
* Copyright (C) 2004-2015 VLC authors and VideoLAN
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This program 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifndef VLC_MPEG4_IOD_H
#define VLC_MPEG4_IOD_H
#include <vlc_tick.h>
#include <vlc_arrays.h>
#define ES_DESCRIPTOR_COUNT 255
typedef enum
{
USE_ACCESS_UNIT_START_FLAG = 1 << 7,
USE_ACCESS_UNIT_END_FLAG = 1 << 6,
USE_RANDOM_ACCESS_POINT_FLAG = 1 << 5,
HAS_RANDOM_ACCESS_UNITS_ONLY_FLAG = 1 << 4,
USE_PADDING_FLAG = 1 << 3,
USE_TIMESTAMPS_FLAG = 1 << 2,
USE_IDLE_FLAG = 1 << 1,
USE_DURATION_FLAG = 1
} sl_config_flags;
typedef struct
{
uint32_t i_timestamp_resolution;
uint32_t i_OCR_resolution;
uint8_t i_flags;
uint8_t i_timestamp_length;
uint8_t i_OCR_length;
uint8_t i_AU_length;
uint8_t i_instant_bitrate_length;
uint8_t i_degradation_priority_length;
uint8_t i_AU_seqnum_length;
uint8_t i_packet_seqnum_length;
uint32_t i_timescale;
uint16_t i_accessunit_duration;
uint16_t i_compositionunit_duration;
uint64_t i_startdecoding_timestamp;
uint64_t i_startcomposition_timestamp;
} sl_config_descriptor_t;
typedef struct
{
unsigned i_size;
bool b_au_start;
bool b_au_end;
vlc_tick_t i_dts;
vlc_tick_t i_pts;
} sl_header_data;
typedef struct es_mpeg4_descriptor_t es_mpeg4_descriptor_t;
typedef struct decoder_config_descriptor_t decoder_config_descriptor_t;
struct decoder_config_descriptor_t
{
uint8_t i_objectTypeIndication;
uint8_t i_streamType;
unsigned i_extra;
uint8_t *p_extra;
};
struct es_mpeg4_descriptor_t
{
bool b_ok;
uint16_t i_es_id;
char *psz_url;
decoder_config_descriptor_t dec_descr;
sl_config_descriptor_t sl_descr;
};
typedef struct
{
uint16_t i_ID;
char *psz_url;
es_mpeg4_descriptor_t es_descr[ES_DESCRIPTOR_COUNT];
} od_descriptor_t;
typedef struct
{
int i_version;
DECL_ARRAY(od_descriptor_t *) objects;
} od_descriptors_t;
od_descriptor_t *IODNew( vlc_object_t *p_object, unsigned i_data, const uint8_t *p_data );
void ODFree( od_descriptor_t *p_od );
sl_header_data DecodeSLHeader( unsigned i_data, const uint8_t *p_data,
const sl_config_descriptor_t *sl );
void DecodeODCommand( vlc_object_t *p_object, od_descriptors_t *,
unsigned i_data, const uint8_t *p_data );
#endif
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