/* * Copyright (C) 2001-2004 Rich Wareham * * This file is part of libdvdnav, a DVD navigation library. * * libdvdnav 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. * * libdvdnav 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 libdvdnav; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #ifndef LIBDVDNAV_DVDNAV_INTERNAL_H #define LIBDVDNAV_DVDNAV_INTERNAL_H #ifdef HAVE_CONFIG_H #include "config.h" #endif #ifdef WIN32 /* pthread_mutex_* wrapper for win32 */ #include #include typedef CRITICAL_SECTION pthread_mutex_t; #define pthread_mutex_init(a, b) InitializeCriticalSection(a) #define pthread_mutex_lock(a) EnterCriticalSection(a) #define pthread_mutex_unlock(a) LeaveCriticalSection(a) #define pthread_mutex_destroy(a) DeleteCriticalSection(a) #ifndef HAVE_GETTIMEOFDAY /* replacement gettimeofday implementation */ #include static inline int _private_gettimeofday( struct timeval *tv, void *tz ) { struct timeb t; ftime( &t ); tv->tv_sec = t.time; tv->tv_usec = t.millitm * 1000; return 0; } #define gettimeofday(TV, TZ) _private_gettimeofday((TV), (TZ)) #endif #include /* read() */ #define lseek64 _lseeki64 #else #include #endif /* WIN32 */ #ifdef __ANDROID__ # undef lseek # define lseek lseek64 # undef off_t # define off_t off64_t #endif /* where should libdvdnav write its messages (stdout/stderr) */ #define MSG_OUT stderr /* Maximum length of an error string */ #define MAX_ERR_LEN 255 #ifndef DVD_VIDEO_LB_LEN #define DVD_VIDEO_LB_LEN 2048 #endif typedef enum { DSI_ILVU_PRE = 1 << 15, /* set during the last 3 VOBU preceeding an interleaved block. */ DSI_ILVU_BLOCK = 1 << 14, /* set for all VOBU in an interleaved block */ DSI_ILVU_FIRST = 1 << 13, /* set for the first VOBU for a given angle or scene within a ILVU, or the first VOBU in the preparation (PREU) sequence */ DSI_ILVU_LAST = 1 << 12, /* set for the last VOBU for a given angle or scene within a ILVU, or the last VOBU in the preparation (PREU) sequence */ DSI_ILVU_MASK = 0xf000 } DSI_ILVU; typedef struct read_cache_s read_cache_t; /* * These are defined here because they are * not in ifo_types.h, they maybe one day */ #ifndef audio_status_t typedef struct { #ifdef WORDS_BIGENDIAN unsigned int available : 1; unsigned int zero1 : 4; unsigned int stream_number : 3; uint8_t zero2; #else uint8_t zero2; unsigned int stream_number : 3; unsigned int zero1 : 4; unsigned int available : 1; #endif } ATTRIBUTE_PACKED audio_status_t; #endif #ifndef spu_status_t typedef struct { #ifdef WORDS_BIGENDIAN unsigned int available : 1; unsigned int zero1 : 2; unsigned int stream_number_4_3 : 5; unsigned int zero2 : 3; unsigned int stream_number_wide : 5; unsigned int zero3 : 3; unsigned int stream_number_letterbox : 5; unsigned int zero4 : 3; unsigned int stream_number_pan_scan : 5; #else unsigned int stream_number_pan_scan : 5; unsigned int zero4 : 3; unsigned int stream_number_letterbox : 5; unsigned int zero3 : 3; unsigned int stream_number_wide : 5; unsigned int zero2 : 3; unsigned int stream_number_4_3 : 5; unsigned int zero1 : 2; unsigned int available : 1; #endif } ATTRIBUTE_PACKED spu_status_t; #endif /* * Describes a given time, and the closest sector, vobu and tmap index */ typedef struct { uint64_t time; uint32_t sector; uint32_t vobu_idx; int32_t tmap_idx; } dvdnav_pos_data_t; /* * Encapsulates cell data */ typedef struct { int32_t idx; dvdnav_pos_data_t *bgn; dvdnav_pos_data_t *end; } dvdnav_cell_data_t; /* * Encapsulates common variables used by internal functions of jump_to_time */ typedef struct { vobu_admap_t *admap; int32_t admap_len; vts_tmap_t *tmap; int32_t tmap_len; int32_t tmap_interval; } dvdnav_jump_args_t; /* * Utility constants for jump_to_time */ #define TMAP_IDX_EDGE_BGN -1 #define TMAP_IDX_EDGE_END -2 #define JUMP_MODE_TIME_AFTER 1 #define JUMP_MODE_TIME_DEFAULT 0 #define JUMP_MODE_TIME_BEFORE -1 typedef struct dvdnav_vobu_s { int32_t vobu_start; /* Logical Absolute. MAX needed is 0x300000 */ int32_t vobu_length; int32_t blockN; /* Relative offset */ int32_t vobu_next; /* Relative offset */ } dvdnav_vobu_t; /** The main DVDNAV type **/ struct dvdnav_s { /* General data */ char *path; /* Path to DVD device/dir */ dvd_file_t *file; /* Currently opened file */ /* Position data */ vm_position_t position_next; vm_position_t position_current; dvdnav_vobu_t vobu; /* NAV data */ pci_t pci; dsi_t dsi; uint32_t last_cmd_nav_lbn; /* detects when a command is issued on an already left NAV */ /* Flags */ int skip_still; /* Set when skipping a still */ int sync_wait; /* applications should wait till they are in sync with us */ int sync_wait_skip; /* Set when skipping wait state */ int spu_clut_changed; /* The SPU CLUT changed */ int started; /* vm_start has been called? */ int use_read_ahead; /* 1 - use read-ahead cache, 0 - don't */ int pgc_based; /* positioning works PGC based instead of PG based */ int cur_cell_time; /* time expired since the beginning of the current cell, read from the dsi */ /* VM */ vm_t *vm; pthread_mutex_t vm_lock; /* Read-ahead cache */ read_cache_t *cache; /* Errors */ char err_str[MAX_ERR_LEN]; }; /** HELPER FUNCTIONS **/ /* converts a dvd_time_t to PTS ticks */ int64_t dvdnav_convert_time(dvd_time_t *time); /** USEFUL MACROS **/ #ifdef __GNUC__ #define printerrf(format, args...) \ do { if (this) snprintf(this->err_str, MAX_ERR_LEN, format, ## args); } while (0) #else #ifdef _MSC_VER #define printerrf(str) \ do { if (this) snprintf(this->err_str, MAX_ERR_LEN, str); } while (0) #else #define printerrf(...) \ do { if (this) snprintf(this->err_str, MAX_ERR_LEN, __VA_ARGS__); } while (0) #endif /* WIN32 */ #endif #define printerr(str) \ do { if (this) strncpy(this->err_str, str, MAX_ERR_LEN - 1); } while (0) #endif /* LIBDVDNAV_DVDNAV_INTERNAL_H */