libmpeg3/ifo.h

   1 #ifndef __IFO_H__
   2 #define __IFO_H__
   3
   4 #ifndef DVD_VIDEO_LB_LEN
   5 #define DVD_VIDEO_LB_LEN 2048
   6 #endif
   7
   8 #define OFFSET_IFO              0x0000
   9 #define OFFSET_VTS              0x0000
  10 #define OFFSET_LEN              0x00C0
  11 #define IFO_OFFSET_TAT          0x00C0
  12 #define OFFSET_VTSI_MAT         0x0080
  13 #define IFO_OFFSET_VIDEO        0x0100
  14 #define IFO_OFFSET_AUDIO        0x0200
  15 #define IFO_OFFSET_SUBPIC       0x0250
  16
  17
  18 // for debug and error output
  19
  20 /**
  21  * Video Info Table
  22  */
  23
  24 typedef struct {
  25 #if BYTE_ORDER == BIG_ENDIAN
  26         u_char compression      : 2;
  27         u_char system           : 2;
  28         u_char ratio            : 2;
  29         u_char perm_displ       : 2;
  30
  31         u_char line21_1         : 1;
  32         u_char line21_2         : 1;
  33         u_char source_res       : 2;
  34         u_char letterboxed      : 1;
  35         u_char mode             : 1;
  36 #else
  37         u_char perm_displ       : 2;
  38         u_char ratio            : 2;
  39         u_char system           : 2;
  40         u_char compression      : 2;
  41
  42         u_char mode             : 1;
  43         u_char letterboxed      : 1;
  44         u_char source_res       : 2;
  45         u_char line21_2         : 1;
  46         u_char line21_1         : 1;
  47 #endif
  48 } ifo_video_info_t;
  49
  50 /**
  51  * Audio Table
  52  */
  53
  54 typedef struct {
  55 #if MPEG3_LITTLE_ENDIAN
  56         u_char num_channels     : 3;    // number of channels (n+1)
  57         u_char sample_freq      : 2;    // sampling frequency
  58         u_char quantization     : 2;    // quantization
  59         u_char appl_mode2       : 1;    // audio application mode
  60
  61         u_char appl_mode1       : 1;    //
  62         u_char type             : 2;    // audio type (language included?)
  63         u_char multichannel_extension: 1;
  64         u_char coding_mode      : 2;
  65 #else
  66         u_char appl_mode2       : 1;
  67         u_char quantization     : 2;
  68         u_char sample_freq      : 2;
  69         u_char num_channels     : 3;
  70
  71         u_char coding_mode      : 2;
  72         u_char multichannel_extension: 1;
  73         u_char type             : 2;
  74         u_char appl_mode1       : 1;
  75 #endif
  76         u_short lang_code       : 16;   // <char> description
  77         u_int   foo             : 8;    // 0x00000000 ?
  78         u_int   caption         : 8;
  79         u_int   bar             : 8;    // 0x00000000 ?
  80 } ifo_audio_t;
  81
  82 #define IFO_AUDIO_LEN 7
  83
  84 /**
  85  * Subpicture Table
  86  */
  87
  88 typedef struct {
  89         u_short prefix  : 16;           // 0x0100 ?
  90         u_short lang_code : 16;         // <char> description
  91         u_char foo      : 8;            // dont know
  92         u_char caption  : 8;            // 0x00 ?
  93 } ifo_spu_t;
  94
  95
  96 /**
  97  * Time Map Table header entry
  98  */
  99
 100 #if 0
 101 typedef struct {
 102         u_char  tu              : 16;    // time unit (in seconds)
 103         u_int                   : 16;   // don't know
 104 } ifo_tmt_hdr_t;
 105 #endif
 106
 107 typedef struct {
 108         u_int                   : 24;   // don't know
 109         u_char  tu              : 8;    // time unit (in seconds)
 110 } ifoq_tmt_hdr_t;
 111
 112 //#define IFO_TMT_HDR_LEN 4
 113 #define IFOQ_TMT_HDR_LEN 1
 114
 115
 116 /**
 117  * hmm
 118  */
 119
 120 typedef struct {
 121         u_short vob_id          : 16;   // Video Object Identifier
 122         u_char  cell_id         : 8;    // Cell Identifier
 123         u_char                  : 8;    // don't know
 124         u_int   start           : 32;   // Cell start
 125         u_int   end             : 32;   // Cell end
 126 } ifo_cell_addr_t;
 127
 128
 129 typedef struct {
 130         u_short vob_id          : 16;   // Video Object Identifier
 131         u_short cell_id         : 16;   // Cell Identifier
 132 } ifo_pgc_cell_pos_t;
 133
 134 /**
 135  * Part of Title AND Title set Cell Address
 136  */
 137
 138 typedef struct {
 139         u_short pgc;            // Program Chain (PTT)
 140         u_short pg;             // Program (PTT)
 141         u_long  start;          // Start of VOBU (VTS? CADDR)
 142         u_long  end;            // End of VOBU (VTS? CADDR)
 143 } ifo_ptt_data_t;
 144
 145 typedef struct {
 146         u_int num;              // Number of Chapters
 147         ifo_ptt_data_t *data;   // Data
 148 } ifo_ptt_sub_t;
 149
 150 typedef struct {
 151         u_int num;              // Number of Titles
 152         ifo_ptt_sub_t *title;   // Titles
 153 } ifo_ptt_t;
 154
 155 typedef struct {
 156         u_char  chain_info      : 8; // 0x5e 0xde(2 angles, no overlay), 0x5f 0x9f 0x9f 0xdf(4 angles overlay), 0x2 0xa 0x8(1 angle)
 157         u_char  foo             : 8; // parent control ??
 158         u_char  still_time      : 8;
 159         u_char  cell_cmd        : 8;
 160         //u_int   foo             : 32;
 161         u_int   len_time        : 32;
 162         u_int   vobu_start      : 32;   // 1st vobu start
 163         u_int   ilvu_end        : 32;
 164         u_int   vobu_last_start : 32;
 165         u_int   vobu_last_end   : 32;
 166 } ifo_pgci_cell_addr_t;
 167
 168 #define PGCI_CELL_ADDR_LEN 24
 169
 170 #define ID_NUM_MENU_VOBS 0
 171 #define ID_NUM_TITLE_VOBS 1
 172
 173 #define ID_MAT                  0
 174 #define ID_PTT                  1
 175 #define ID_TSP                  1
 176 #define ID_TITLE_PGCI           2
 177 #define ID_MENU_PGCI            3
 178 #define ID_TMT                  4
 179 #define ID_MENU_CELL_ADDR       5
 180 #define ID_MENU_VOBU_ADDR_MAP   6
 181 #define ID_TITLE_CELL_ADDR      7
 182 #define ID_TITLE_VOBU_ADDR_MAP  8
 183
 184
 185 /**
 186  * Information Table - for internal use only
 187  */
 188
 189 typedef struct {
 190         u_int num_menu_vobs;
 191         u_int vob_start;
 192
 193         u_char *data[10];
 194
 195         int fd;         // file descriptor
 196         __off64_t pos;  // offset of ifo file on device
 197 } ifo_t;
 198
 199
 200 /**
 201  * Generic header
 202  */
 203
 204 #define IFO_HDR_LEN 8
 205 #define IFOQ_HDR_LEN 2
 206
 207 typedef struct {
 208         u_short num     : 16;   // number of entries
 209         u_short         : 16;   // don't known (reserved?)
 210         u_int   len     : 32;   // length of table
 211 } ifo_hdr_t;
 212
 213 typedef struct {
 214         u_short         : 16;   // don't known (reserved?)
 215         u_short num     : 16;   // number of entries
 216         u_int   len     : 32;   // length of table
 217 } ifoq_hdr_t;
 218
 219
 220 /**
 221  * Prototypes
 222  */
 223
 224 ifo_t *ifoOpen (int fd, __off64_t pos);
 225 int ifoClose (ifo_t *ifo);
 226
 227 u_int ifoGetVOBStart    (ifo_t *ifo);
 228 int ifoGetNumberOfTitles (ifo_t *ifo);
 229 int ifoGetNumberOfParts (ifo_t *ifo);
 230
 231 int ifoGetVMGPTT        (ifo_hdr_t *hdr, char **ptr);
 232 int ifoGetPGCI          (ifo_hdr_t *hdr, int title, char **ptr);
 233 int ifoGetCLUT          (char *pgc, char **ptr);
 234 u_int ifoGetCellPlayInfo        (u_char *pgc, u_char **ptr);
 235 u_int ifoGetCellPos     (u_char *pgc, u_char **ptr);
 236 int ifoGetProgramMap    (char *pgc, char **ptr);
 237 int ifoGetCellAddr      (char *cell_addr, char **ptr);
 238 int ifoGetCellAddrNum   (char *hdr);
 239
 240 int ifoGetAudio         (char *hdr, char **ptr);
 241 int ifoGetSPU           (char *hdr, char **ptr);
 242
 243 ifo_ptt_t *ifo_get_ptt (ifo_t *ifo);
 244 int ifo_get_num_title_pgci (ifo_t *ifo);
 245 u_char *ifo_get_ptr_title_pgci (ifo_t *ifo, int index);
 246
 247 char *ifoDecodeLang (u_short descr);
 248
 249 int ifoIsVTS (ifo_t *ifo);
 250 int ifoIsVMG (ifo_t *ifo);
 251
 252 void ifoPrintVideo              (u_char *ptr);
 253
 254 void ifoPrintCellPlayInfo       (u_char *ptr, u_int num);
 255 void ifoPrintCellInfo           (u_char *ptr, u_int num);
 256 void ifoPrintCellPos            (u_char *ptr, u_int num);
 257 void ifoPrintCLUT               (u_char *ptr);
 258 void ifoPrintProgramMap         (u_char *ptr, u_int num);
 259
 260 #ifdef PARSER
 261 void ifoPrintAudio              (ifo_audio_t *ptr, u_int num);
 262 void ifoPrintSPU                (ifo_spu_t *ptr, u_int num);
 263 void ifoPrintTMT                (ifo_t *ifo);
 264
 265 void ifoPrintVMOP               (u_char *opcode);
 266
 267 void ifoPrint_ptt (ifo_ptt_t *ptt);
 268 void ifoPrint_vts_vobu_addr_map (ifo_t *ifo);
 269 void ifoPrint_vtsm_vobu_addr_map (ifo_t *ifo);
 270 void ifoPrint_vts_cell_addr (ifo_t *ifo);
 271 void ifoPrint_vtsm_cell_addr (ifo_t *ifo);
 272 void ifoPrint_title_pgci (ifo_t *ifo);
 273 void ifoPrint_pgc_cmd (u_char *pgc_ptr);
 274 void ifoPrintTSP (u_char *toast);
 275 void ifoPrint_pgc (u_char *ptr);
 276 #endif
 277 #endif
 278