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/*
* Some functions for UDF handling, originally part of dvd_disc_20000215.tar.gz
* from convergence.
*
* cleanups (remove every with a relation to CSS)
* by Mirko Dlle <cooper@linvdr.org>
*/
#ifndef DVD_UDF_H
#define DVD_UDF_H
#define DVD_UDF_VERSION 20000215
/***********************************************************************************/
/* The length of one Logical Block of a DVD Video */
/***********************************************************************************/
#define DVD_VIDEO_LB_LEN 2048
/***********************************************************************************/
/* reads Logical Block of the disc or image */
/* lb_number: disc-absolute logical block number */
/* block_count: number of 2048 byte blocks to read */
/* data: pointer to enough allocated memory */
/* returns number of read bytes on success, 0 or negative error number on error */
/***********************************************************************************/
int UDFReadLB(unsigned long int lb_number, unsigned int block_count, unsigned char *data);
/***********************************************************************************/
/* looks for a file on the UDF disc/imagefile */
/* filename: absolute pathname on the UDF filesystem, starting with '/' */
/* filesize will be set to the size of the file in bytes, on success */
/* returns absolute LB number, or 0 on error */
/***********************************************************************************/
unsigned long int UDFFindFile(char *filename, unsigned long int *filesize);
/************************************/
/* DVD Copy Management: */
/* RPC - Region Playback Control */
/************************************/
/***********************************************************************************/
/* Query RPC status of the drive */
/* type: 0=NONE (no drive region setting) */
/* 1=SET (drive region is set */
/* 2=LAST CHANCE (drive region is set, only one change remains) */
/* 3=PERM (region set permanently, may be reset by vendor) */
/* vra: number of vendor resets available */
/* ucca: number of user controlled changes available */
/* region_mask: the bit of the drive's region is set to 0, all other 7 bits to 1 */
/* rpc_scheme: 0=unknown, 1=RPC Phase II, others reserved */
/* returns 0 on success, <0 on error */
/***********************************************************************************/
int UDFRPCGet(int *type, int *vra, int *ucca, int *region_mask, int *rpc_scheme);
/***********************************************************************************/
/* Set new Region for drive */
/* region_mask: the bit of the new drive's region is set to 0, all other 7 bits to 1 */
/***********************************************************************************/
int UDFRPCSet(int region_mask);
/***********************************************************************************/
/* opens block device or image file */
/* filename: path to the DVD ROM block device or to the image file in UDF format */
/* returns fileno() of the file on success, or -1 on error */
/***********************************************************************************/
int UDFOpenDisc(char *filename);
/***********************************************************************************/
/* closes previously opened block device or image file */
/* returns 0 on success, or -1 on error */
/***********************************************************************************/
int UDFCloseDisc(void);
#endif /* DVD_UDF_H */
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