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* Copyright (C) 2000 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
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
* $Id: read_cache.h,v 1.1 2002/08/08 17:49:21 richwareham Exp $
#include "dvdnav_internal.h"
/* Opaque cache type -- defined in dvdnav_internal.h */
/* typedef struct read_cache_s read_cache_t; */
/* EXPERIMENTAL: Setting the following to 1 will use an experimental multi-threaded
* read-ahead cache.
#define _MULTITHREAD_ 0
/* Constructor/destructors */
read_cache_t *dvdnav_read_cache_new(dvdnav_t* dvd_self);
void dvdnav_read_cache_free(read_cache_t* self);
/* This function MUST be called whenever self->file changes. */
void dvdnav_read_cache_clear(read_cache_t *self);
/* This function is called just after reading the NAV packet. */
void dvdnav_pre_cache_blocks(read_cache_t *self, int sector, size_t block_count);
/* This function will do the cache read.
* The buffer handed in must be malloced to take one dvd block.
* On a cache hit, a different buffer will be returned though.
* Those buffers must _never_ be freed. */
int dvdnav_read_cache_block(read_cache_t *self, int sector, size_t block_count, uint8_t **buf);
#endif /* __DVDNAV_READ_CACHE_H */