/usr/include/libvcd/files_private.h is in libvcdinfo-dev 0.7.23-4.1ubuntu1.
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$Id: files_private.h,v 1.6 2005/05/08 08:42:09 rocky Exp $
Copyright (C) 2000 Herbert Valerio Riedel <hvr@gnu.org>
(C) 2000 Jens B. Jorgensen <jbj1@ultraemail.net>
(C) 2005 Rocky Bernstein <rocky@panix.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __VCD_FILES_PRIVATE_H__
#define __VCD_FILES_PRIVATE_H__
#include <libvcd/files.h>
#include <libvcd/types.h>
/* random note: most stuff is big endian here */
#define ENTRIES_ID_VCD "ENTRYVCD"
#define ENTRIES_ID_VCD3 "ENTRYSVD"
#define ENTRIES_ID_SVCD "ENTRYVCD" /* not ENTRYSVD! */
#define ENTRIES_VERSION_VCD 0x01
#define ENTRIES_SPTAG_VCD 0x00
#define ENTRIES_VERSION_VCD11 0x01
#define ENTRIES_SPTAG_VCD11 0x00
#define ENTRIES_VERSION_VCD2 0x02
#define ENTRIES_SPTAG_VCD2 0x00
#define ENTRIES_VERSION_SVCD 0x01
#define ENTRIES_SPTAG_SVCD 0x00
#define ENTRIES_VERSION_HQVCD 0x01
#define ENTRIES_SPTAG_HQVCD 0x00
PRAGMA_BEGIN_PACKED
typedef struct _EntriesVcd_tag {
char ID[8]; /**< "ENTRYVCD" or "ENTRYSVD" */
uint8_t version; /**< 0x02 --- VCD2.0
0x01 --- SVCD, should be
same as version in
INFO.SVD */
uint8_t sys_prof_tag; /**< 0x01 if VCD1.1
0x00 else */
uint16_t entry_count; /**< 1 <= tracks <= 500 */
struct { /* all fields are BCD */
track_t n; /* cd track no 2 <= n <= 99 */
msf_t msf;
} GNUC_PACKED entry[MAX_ENTRIES];
uint8_t reserved2[36]; /* RESERVED, must be 0x00 */
} GNUC_PACKED _EntriesVcd_t; /* sector 00:04:01 */
#define EntriesVcd_t_SIZEOF ISO_BLOCKSIZE
#define INFO_ID_VCD "VIDEO_CD"
#define INFO_ID_SVCD "SUPERVCD"
#define INFO_ID_HQVCD "HQ-VCD "
#define INFO_VERSION_VCD 0x01
#define INFO_SPTAG_VCD 0x00
#define INFO_VERSION_VCD11 0x01
#define INFO_SPTAG_VCD11 0x01
#define INFO_VERSION_VCD2 0x02
#define INFO_SPTAG_VCD2 0x00
#define INFO_VERSION_SVCD 0x01
#define INFO_SPTAG_SVCD 0x00
#define INFO_VERSION_HQVCD 0x01
#define INFO_SPTAG_HQVCD 0x01
#define INFO_OFFSET_MULT 0x08
/** InfoStatusFlags: this one-byte field describes certain
characteristics of the disc */
typedef struct {
#if defined(BITFIELD_LSBF)
bool reserved1 : 1; /* Reserved, must be zero */
bitfield_t restriction : 2; /* restriction, eg. "unsuitable
for kids":
0x0 ==> unrestricted,
0x1 ==> restricted category 1,
0x2 ==> restricted category 2,
0x3 ==> restricted category 3 */
bool special_info : 1; /**< Special Information is
encoded
in the pictures */
bool user_data_cc : 1; /**< MPEG User Data is used
for Closed Caption */
bool use_lid2 : 1; /**< If == 1 and the PSD is
interpreted and the next
disc has the same album
id then start the next
disc at List ID #2,
otherwise List ID #1 */
bool use_track3 : 1; /**< If == 1 and the PSD is
not interpreted and
next disc has same album
id, then start next disc
with track 3, otherwise
start with track 2 */
bool pbc_x : 1; /**< extended PBC available */
#else
bool pbc_x : 1;
bool use_track3 : 1;
bool use_lid2 : 1;
bool user_data_cc : 1;
bool special_info : 1;
bitfield_t restriction : 2;
bool reserved1 : 1;
#endif
} GNUC_PACKED InfoStatusFlags_t;
#define InfoStatusFlags_t_SIZEOF 1
enum {
VCD_FILES_VIDEO_NOSTREAM = 0,
VCD_FILES_VIDEO_NTSC_STILL = 1,
VCD_FILES_VIDEO_NTSC_STILL2 = 2,
VCD_FILES_VIDEO_NTSC_MOTION = 3,
VCD_FILES_VIDEO_PAL_STILL = 5,
VCD_FILES_VIDEO_PAL_STILL2 = 6,
VCD_FILES_VIDEO_PAL_MOTION = 7
};
typedef struct
{
#if defined(BITFIELD_LSBF)
bitfield_t audio_type : 2; /**< Audio characteristics:
0x0 - No MPEG audio stream
0x1 - One MPEG1 or MPEG2 audio
stream without extension
0x2 - Two MPEG1 or MPEG2 audio
streams without extension
0x3 - One MPEG2 multi-channel
audio stream w/ extension*/
bitfield_t video_type : 3; /**< Video characteristics:
0x0 - No MPEG video data
0x1 - NTSC still picture
0x2 - Reserved (NTSC hires?)
0x3 - NTSC motion picture
0x4 - Reserved
0x5 - PAL still picture
0x6 - Reserved (PAL hires?)
0x7 - PAL motion picture */
bool item_cont : 1; /**< Indicates segment is
continuation
0x0 - 1st or only segment of item
0x1 - 2nd or later
segment of item */
bitfield_t ogt : 2; /**< 0x0 - no OGT substream
0x1 - sub-stream 0 available
0x2 - sub-stream 0 & 1
available
0x3 - all OGT sub-substreams
available */
#else
bitfield_t ogt : 2;
bool item_cont : 1;
bitfield_t video_type : 3;
bitfield_t audio_type : 2;
#endif
} GNUC_PACKED InfoSpiContents_t;
#define InfoSpiContents_t_SIZEOF 1
typedef struct _InfoVcd_tag {
char ID[8]; /**< const "VIDEO_CD" for
VCD, "SUPERVCD" or
"HQ-VCD " for SVCD */
uint8_t version; /**< 0x02 -- VCD2.0,
0x01 for SVCD and VCD1.x */
uint8_t sys_prof_tag; /**< System Profile Tag, used
to define the set of
mandatory parts to be
applied for compatibility;
0x00 for "SUPERVCD",
0x01 for "HQ-VCD ",
0x0n for VCDx.n */
char album_desc[16]; /**< album identification/desc. */
uint16_t vol_count; /**< number of volumes in album */
uint16_t vol_id; /**< number id of this volume in album */
uint8_t pal_flags[13]; /**< bitset of 98 PAL(=set)/NTSC flags */
InfoStatusFlags_t flags; /**< status flags bit field */
uint32_t psd_size; /**< size of PSD.VCD file */
msf_t first_seg_addr; /**< first segment addresses,
coded BCD The location
of the first sector of
the Segment Play Item
Area, in the form
mm:ss:00. Must be
00:00:00 if the PSD size
is 0. */
uint8_t offset_mult; /**< offset multiplier, must be 8 */
uint16_t lot_entries; /**< offsets in lot */
uint16_t item_count; /**< segments used for segmentitems */
InfoSpiContents_t spi_contents[MAX_SEGMENTS]; /**< The next 1980 bytes
contain one byte for each
possible segment play item.
Each byte indicates
contents. */
uint16_t playing_time[5]; /**< in seconds */
char reserved[2]; /**< Reserved, must be zero */
} GNUC_PACKED _InfoVcd_t;
#define InfoVcd_t_SIZEOF ISO_BLOCKSIZE
/** LOT.VCD
This optional file is only necessary if the PSD size is not zero.
This List ID Offset Table allows you to start playing the PSD from
lists other than the default List ID number. This table has a fixed length
of 32 sectors and maps List ID numbers into List Offsets. It's got
an entry for each List ID Number with the 16-bit offset. Note that
List ID 1 has an offset of 0x0000. All unused or non-user-accessible
entries must be 0xffff. */
#define LOT_VCD_OFFSETS ((1 << 15)-1)
typedef struct _LotVcd_tag {
uint16_t reserved; /* Reserved, must be zero */
uint16_t offset[LOT_VCD_OFFSETS]; /* offset given in 8 byte units */
} GNUC_PACKED _LotVcd_t;
#define LotVcd_t_SIZEOF (32*ISO_BLOCKSIZE)
/** PSD.VCD
The PSD controls the "user interaction" mode which can be used to make
menus, etc. The PSD contains a set of Lists. Each List defines a set of
Items which are played in sequence. An Item can be an mpeg track (in whole
or part) or a Segment Play Item which can subsequently be mpeg video
with or without audio, one more more mpeg still pictures (with or without
audio) or mpeg audio only.
The Selection List defines the action to be taken in response to a set
of defined user actions: Next, Previous, Default Select, Numeric, Return.
The End List terminates the control flow or switches to the next
disc volume.
Each list has a unique list id number. The first must be 1, the others can
be anything (up to 32767).
References to PSD list addresses are expressed as an offset into the PSD
file. The offset indicated in the file must be multiplied by the Offset
Multiplier found in the info file (although this seems to always have to
be 8). Unused areas are filled with zeros. List ID 1 starts at offset 0.
*/
/* ...difficult to represent as monolithic C struct... */
typedef struct {
uint8_t type; /* PSD_TYPE_END_LIST */
uint8_t next_disc; /* 0x00 to stop PBC or 0xnn to switch to disc no nn */
uint16_t change_pic; /* 0 or 1000..2979, should be still image */
uint8_t reserved[4]; /* padded with 0x00 */
} GNUC_PACKED PsdEndListDescriptor_t;
#define PsdEndListDescriptor_t_SIZEOF 8
typedef struct {
#if defined(BITFIELD_LSBF)
bool SelectionAreaFlag : 1;
bool CommandListFlag : 1;
bitfield_t reserved : 6;
#else
bitfield_t reserved : 6;
bool CommandListFlag : 1;
bool SelectionAreaFlag : 1;
#endif
} GNUC_PACKED PsdSelectionListFlags_t;
#define PsdSelectionListFlags_t_SIZEOF 1
typedef struct _PsdSelectionListDescriptor_tag {
uint8_t type;
PsdSelectionListFlags_t flags;
uint8_t nos;
uint8_t bsn;
uint16_t lid;
uint16_t prev_ofs;
uint16_t next_ofs;
uint16_t return_ofs;
uint16_t default_ofs;
uint16_t timeout_ofs;
uint8_t totime;
uint8_t loop;
uint16_t itemid;
uint16_t ofs[EMPTY_ARRAY_SIZE]; /* variable length */
/* PsdSelectionListDescriptorExtended */
} GNUC_PACKED _PsdSelectionListDescriptor_t;
#define PsdSelectionListDescriptor_t_SIZEOF 20
typedef struct {
struct psd_area_t prev_area;
struct psd_area_t next_area;
struct psd_area_t return_area;
struct psd_area_t default_area;
struct psd_area_t area[EMPTY_ARRAY_SIZE]; /* variable length */
} GNUC_PACKED PsdSelectionListDescriptorExtended_t;
#define PsdSelectionListDescriptorExtended_t_SIZEOF 16
typedef struct {
uint8_t type;
uint16_t command_count;
uint16_t lid;
uint16_t command[EMPTY_ARRAY_SIZE]; /* variable length */
} GNUC_PACKED PsdCommandListDescriptor_t;
#define PsdCommandListDescriptor_t_SIZEOF 5
typedef struct _PsdPlayListDescriptor_tag {
uint8_t type;
uint8_t noi; /**< number of items */
uint16_t lid; /**< list id: high-bit means this list is rejected in
the LOT (also, can't use 0) */
uint16_t prev_ofs; /**< previous list offset (0xffff disables) */
uint16_t next_ofs; /**< next list offset (0xffff disables) */
uint16_t return_ofs; /**< return list offset (0xffff disables) */
uint16_t ptime; /**< play time in 1/15 s, 0x0000 meaning full item */
uint8_t wtime; /**< delay after, in seconds, if 1 <= wtime <= 60 wait
is wtime else if 61 <= wtime <= 254 wait is
(wtime-60) * 10 + 60 else wtime == 255 wait is
infinite */
uint8_t atime; /**< auto pause wait time calculated same as wtime,
used for each item in list if the auto pause flag
in a sector is true */
uint16_t itemid[EMPTY_ARRAY_SIZE]; /**< item number
0 <= n <= 1 - play nothing
2 <= n <= 99 - play track n
100 <= n <= 599 - play entry
(n - 99) from entries
table to end of track
600 <= n <= 999 - reserved
1000 <= n <= 2979 - play segment
play item (n - 999)
2980 <= n <= 0xffff - reserved */
} GNUC_PACKED _PsdPlayListDescriptor_t;
/* For backwards compatibility. Don't use PsdListDescriptor. */
#define _PsdPlayListDescriptor _PsdPlayListDescriptor_t
#define PsdPlayListDescriptor_t_SIZEOF 14
/* TRACKS.SVD
SVCD\TRACKS.SVD is a mandatory file which describes the numbers and types
of MPEG tracks on the disc. */
/* SVDTrackContent indicates the audio/video content of an MPEG Track */
typedef struct {
#if defined(BITFIELD_LSBF)
bitfield_t audio : 2; /**< Audio Content
0x00 : No MPEG audio stream
0x01 : One MPEG{1|2} audio stream
0x02 : Two MPEG{1|2} streams
0x03 : One MPEG2 multi-channel
audio stream with
extension */
bitfield_t video : 3; /**< Video Content
0x00 : No MPEG video
0x03 : NTSC video
0x07 : PAL video */
bool reserved1 : 1; /**< Reserved, must be zero */
bitfield_t ogt : 2; /**< 0x0 - no OGT substream
0x1 - sub-stream 0 available
0x2 - sub-stream 0 & 1 available
0x3 - all OGT sub-substreams
available */
#else
bitfield_t ogt : 2;
bool reserved1 : 1;
bitfield_t video : 3;
bitfield_t audio : 2;
#endif
} GNUC_PACKED SVDTrackContent_t;
#define SVDTrackContent_t_SIZEOF 1
/** The TRACKS.SVD file contains a series of structures, one for each
track, which indicates the track's playing time (in sectors, not
actually real time) and contents. */
#define TRACKS_SVD_FILE_ID "TRACKSVD"
#define TRACKS_SVD_VERSION 0x01
typedef struct {
char file_id[sizeof(TRACKS_SVD_FILE_ID)-1]; /**< == "TRACKSVD" with out
final NULL byte */
uint8_t version; /**< == 0x01 */
uint8_t reserved; /**< Reserved, must be zero */
uint8_t tracks; /**< number of MPEG tracks */
msf_t playing_time[EMPTY_ARRAY_SIZE]; /**< per track, BCD coded
mm:ss:ff */
} GNUC_PACKED TracksSVD_t;
#define TracksSVD_t_SIZEOF 11
typedef struct {
/* TracksSVD tracks_svd; */
SVDTrackContent_t contents[1]; /**< should be [], but C99 doesn't allow it
indicates track contents */
} GNUC_PACKED TracksSVD2_t;
#define TracksSVD2_t_SIZEOF SVDTrackContent_t_SIZEOF
/** VCD30 TRACKS.SVD file. */
typedef struct {
char file_id[sizeof(TRACKS_SVD_FILE_ID)-1]; /**< == "TRACKSVD" */
uint8_t version; /**< == 0x01 */
uint8_t reserved; /**< Reserved, must be zero */
uint8_t tracks; /**< number of MPEG tracks */
struct {
msf_t cum_playing_time; /**< BCD coded mm:ss:ff */
uint8_t ogt_info;
uint8_t audio_info;
} GNUC_PACKED track[EMPTY_ARRAY_SIZE];
} GNUC_PACKED TracksSVD_v30_t;
#define TracksSVD_v30_t_SIZEOF 11
/** SVCD/SEARCH.DAT
This file defines where the scan points are. It covers all mpeg tracks
together. A scan point at time T is the nearest I-picture in the MPEG
stream to the given time T. Scan points are given at every half-second
for the entire duration of the disc. */
#define SEARCH_FILE_ID "SEARCHSV"
#define SEARCH_VERSION 0x01
#define SEARCH_TIME_INTERVAL 0x01
typedef struct {
char file_id[sizeof(SEARCH_FILE_ID)-1]; /**< == "SEARCHSV" without final
NULL byte */
uint8_t version; /**< = 0x01 */
uint8_t reserved; /**< Reserved, must be zero */
uint16_t scan_points; /**< the number of scan points */
uint8_t time_interval; /**< The interval of time in
between scan points, in units
of 0.5 seconds, must be 0x01 */
msf_t points[EMPTY_ARRAY_SIZE]; /**< The series of scan points */
} GNUC_PACKED SearchDat_t;
#define SearchDat_t_SIZEOF 13
/* SPICONTX.SVD
*/
#define SPICONTX_FILE_ID "SPICONSV"
#define SPICONTX_VERSION 0x01
typedef struct {
char file_id[sizeof(SPICONTX_FILE_ID)-1]; /**< = "SPICONSV" without final
NULL byte */
uint8_t version; /**< = 0x01 */
uint8_t reserved; /**< Reserved, must be zero */
struct {
uint8_t ogt_info;
uint8_t audio_info;
} GNUC_PACKED spi[MAX_SEGMENTS];
uint8_t reserved2[126]; /**< 0x00 */
} GNUC_PACKED SpicontxSvd_t;
#define SpicontxSvd_t_SIZEOF (2*ISO_BLOCKSIZE)
/** SCANDATA.DAT for VCD 2.0 */
#define SCANDATA_FILE_ID "SCAN_VCD"
#define SCANDATA_VERSION_VCD2 0x02
#define SCANDATA_VERSION_SVCD 0x01
typedef struct {
char file_id[sizeof(SCANDATA_FILE_ID)-1]; /**< == "SCAN_VCD" without final
NULL byte */
uint8_t version; /**< = 0x02 */
uint8_t reserved; /**< Reserved, must be zero */
uint16_t scan_points; /**< the number of scan points */
msf_t points[EMPTY_ARRAY_SIZE]; /**< actual scan points
points[time(iframe)/0.5] */
} GNUC_PACKED ScandataDat_v2_t;
#define ScandataDat_v2_t_SIZEOF 12
/** SCANDATA.DAT for SVCD
This file fulfills much the same purpose of the SEARCH.DAT file except
that this file is mandatory only if the System Profile Tag of the
INFO.SVD file is 0x01 (HQ-VCD) and also that it contains sector addresses
also for each video Segment Play Items in addition to the regular MPEG
tracks. */
typedef struct {
char file_id[sizeof(SCANDATA_FILE_ID)-1]; /**< == "SCAN_VCD" without final
NULL byte */
uint8_t version; /**< = 0x01 */
uint8_t reserved; /**< Reserved, must be zero */
uint16_t scandata_count; /**< number of 3-byte entries in
the table */
uint16_t track_count; /**< number of MPEG tracks on
disc */
uint16_t spi_count; /**< number of consecutively
recorded play item segments
(as opposed to the number of
segment play items). */
msf_t cum_playtimes[EMPTY_ARRAY_SIZE]; /**< cumulative playing
time up to track
N. Track time just wraps
at 99:59:74 */
} GNUC_PACKED ScandataDat1_t;
#define ScandataDat1_t_SIZEOF 16
typedef struct {
/* ScandataDat head; */
uint16_t spi_indexes[1]; /* should be [], but C doesn't allow that;
Indexes into the following scandata
table */
} GNUC_PACKED ScandataDat2_t;
#define ScandataDat2_t_SIZEOF sizeof(uint16_t)
typedef struct {
/* ScandataDat2 head; */
uint16_t mpegtrack_start_index; /* Index into the
following scandata table
where the MPEG track
scan points start */
/* The scandata table starts here */
struct {
uint8_t track_num; /* Track number as in TOC */
uint16_t table_offset; /* Index into scandata table */
} GNUC_PACKED mpeg_track_offsets[EMPTY_ARRAY_SIZE];
} GNUC_PACKED ScandataDat3_t;
#define ScandataDat3_t_SIZEOF 2
typedef struct {
/* ScandataDat3 head; */
msf_t scandata_table[1]; /* should be [] but C99 doesn't allow that */
} GNUC_PACKED ScandataDat4_t;
#define ScandataDat4_t_SIZEOF msf_t_SIZEOF
PRAGMA_END_PACKED
#endif /* __VCD_FILES_PRIVATE_H__ */
/*
* Local variables:
* c-file-style: "gnu"
* tab-width: 8
* indent-tabs-mode: nil
* End:
*/
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