files_private.h

linux下的MPEG1

#endif  
} GNUC_PACKED PsdSelectionListFlags;

#define PsdSelectionListFlags_SIZEOF 1

typedef struct _PsdSelectionListDescriptor_tag {
  uint8_t type;
  PsdSelectionListFlags 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;

#define PsdSelectionListDescriptor_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;

#define PsdSelectionListDescriptorExtended_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;

#define PsdCommandListDescriptor_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;

#define PsdPlayListDescriptor_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;

#define SVDTrackContent_SIZEOF 1

/* The 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" */
  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;

#define TracksSVD_SIZEOF 11

typedef struct {
  /* TracksSVD tracks_svd; */
  SVDTrackContent contents[1]; /* should be [], but C99 doesn't allow it
                                  indicates track contents */
} GNUC_PACKED TracksSVD2;

#define TracksSVD2_SIZEOF SVDTrackContent_SIZEOF

/* VCD30 tracks svd */

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;

#define TracksSVD_v30_SIZEOF 11

/* 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" */
  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;

#define SearchDat_SIZEOF 13

/* SPICONTX.SVD 
 */

#define SPICONTX_FILE_ID      "SPICONSV"
#define SPICONTX_VERSION      0x01

typedef struct {
  char file_id[sizeof(SPICONTX_FILE_ID)-1]; /* = "SPICONSV" */
  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;

#define SpicontxSvd_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" */
  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;

#define ScandataDat_v2_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" */
  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;

#define ScandataDat1_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;

#define ScandataDat2_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;

#define ScandataDat3_SIZEOF 2

typedef struct {
  /* ScandataDat3 head; */
  msf_t scandata_table[1]; /* should be [] but C99 doesn't allow that */
} GNUC_PACKED ScandataDat4;

#define ScandataDat4_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:
 */