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Diffstat (limited to 'libdvdnav-embedded/src/dvdnav_internal.h')
| -rw-r--r-- | libdvdnav-embedded/src/dvdnav_internal.h | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/libdvdnav-embedded/src/dvdnav_internal.h b/libdvdnav-embedded/src/dvdnav_internal.h new file mode 100644 index 0000000..3b49aa2 --- /dev/null +++ b/libdvdnav-embedded/src/dvdnav_internal.h @@ -0,0 +1,246 @@ +/* + * Copyright (C) 2001-2004 Rich Wareham <richwareham@users.sourceforge.net> + * + * 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 <windows.h> +#include <process.h> +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 <sys/timeb.h> +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 <io.h> /* read() */ +#define lseek64 _lseeki64 + +#else + +#include <pthread.h> + +#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 preceding 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; + const 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; + + /* private context and logger*/ + void *priv; + dvdnav_logger_cb logcb; + + /* 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(const 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 /* _MSC_VER */ +#endif +#define printerr(str) \ + do { if (this) strncpy(this->err_str, str, MAX_ERR_LEN - 1); } while (0) + +#endif /* LIBDVDNAV_DVDNAV_INTERNAL_H */ |