mirror of https://github.com/mpv-player/mpv
152 lines
4.5 KiB
C
152 lines
4.5 KiB
C
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#ifndef DVD_READER_H_INCLUDED
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#define DVD_READER_H_INCLUDED
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/*
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* Copyright (C) 2001, 2002 Billy Biggs <vektor@dumbterm.net>,
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* H<EFBFBD>kan Hjort <d95hjort@dtek.chalmers.se>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <sys/types.h>
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/**
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* The length of one Logical Block of a DVD Video.
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*/
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#define DVD_VIDEO_LB_LEN 2048
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/**
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* Maximum length of filenames for UDF.
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*/
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#define MAX_UDF_FILE_NAME_LEN 2048
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct dvd_reader_s dvd_reader_t;
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typedef struct dvd_file_s dvd_file_t;
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/**
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* dvd = DVDOpen(path);
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*
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* Opens a block device of a DVD-ROM file, or an image file, or a directory
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* name for a mounted DVD or HD copy of a DVD. Returns 0 if we can't get any
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* of those methods to work.
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*
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* If the given file is a block device, or is the mountpoint for a block
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* device, then that device is used for CSS authentication using libdvdcss.
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* If no device is available, then no CSS authentication is performed,
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* and we hope that the image is decrypted.
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*
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* If the path given is a directory, then the files in that directory may be in
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* any one of these formats:
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*
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* path/VIDEO_TS/VTS_01_1.VOB
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* path/video_ts/vts_01_1.vob
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* path/VTS_01_1.VOB
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* path/vts_01_1.vob
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*/
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dvd_reader_t *DVDOpen( const char * );
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/**
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* DVDClose(dvd);
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*
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* Closes and cleans up the DVD reader object. You must close all open files
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* before calling this function.
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*/
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void DVDClose( dvd_reader_t * );
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/**
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* INFO_FILE : VIDEO_TS.IFO (manager)
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* VTS_XX_0.IFO (title)
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*
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* INFO_BACKUP_FILE: VIDEO_TS.BUP (manager)
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* VTS_XX_0.BUP (title)
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*
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* MENU_VOBS : VIDEO_TS.VOB (manager)
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* VTS_XX_0.VOB (title)
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*
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* TITLE_VOBS : VTS_XX_[1-9].VOB (title)
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* All files in the title set are opened and
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* read as a single file.
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*/
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typedef enum {
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DVD_READ_INFO_FILE,
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DVD_READ_INFO_BACKUP_FILE,
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DVD_READ_MENU_VOBS,
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DVD_READ_TITLE_VOBS
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} dvd_read_domain_t;
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/**
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* dvd_file = DVDOpenFile(dvd, titlenum, domain);
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*
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* Opens a file on the DVD given the title number and domain. If the title
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* number is 0, the video manager information is opened
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* (VIDEO_TS.[IFO,BUP,VOB]). Returns a file structure which may be used for
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* reads, or 0 if the file was not found.
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*/
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dvd_file_t *DVDOpenFile( dvd_reader_t *, int,
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dvd_read_domain_t );
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/**
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* DVDCloseFile(dvd_file);
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*
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* Closes a file and frees the associated structure.
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*/
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void DVDCloseFile( dvd_file_t * );
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/**
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* blocks_read = DVDReadBlocks(dvd_file, offset, block_count, data);
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*
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* Reads block_count number of blocks from the file at the given block offset.
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* Returns number of blocks read on success, -1 on error. This call is only
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* for reading VOB data, and should not be used when reading the IFO files.
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* When reading from an encrypted drive, blocks are decrypted using libdvdcss
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* where required.
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*/
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ssize_t DVDReadBlocks( dvd_file_t *, int, size_t, unsigned char * );
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/**
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* offset_set = DVDFileSeek(dvd_file, seek_offset);
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*
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* Seek to the given position in the file. Returns the resulting position in
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* bytes from the beginning of the file. The seek position is only used for
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* byte reads from the file, the block read call always reads from the given
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* offset.
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*/
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int DVDFileSeek( dvd_file_t *, int );
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/**
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* bytes_read = DVDReadBytes(dvd_file, data, bytes);
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*
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* Reads the given number of bytes from the file. This call can only be used
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* on the information files, and may not be used for reading from a VOB. This
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* reads from and increments the currrent seek position for the file.
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*/
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ssize_t DVDReadBytes( dvd_file_t *, void *, size_t );
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/**
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* blocks = DVDFileSize(dvd_file);
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*
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* Returns the file size in blocks.
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*/
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ssize_t DVDFileSize( dvd_file_t * );
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#ifdef __cplusplus
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};
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#endif
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#endif /* DVD_READER_H_INCLUDED */
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