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52 lines
2.0 KiB
52 lines
2.0 KiB
15 years ago
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/*
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* Copyright (C) 2000 Rich Wareham <richwareham@users.sourceforge.net>
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*
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* This file is part of libdvdnav, a DVD navigation library.
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*
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* libdvdnav 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
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* (at your option) any later version.
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*
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* libdvdnav is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*
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* $Id: read_cache.h,v 1.1 2002/08/08 17:49:21 richwareham Exp $
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*
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*/
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#ifndef __DVDNAV_READ_CACHE_H
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#define __DVDNAV_READ_CACHE_H
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#include "dvdnav_internal.h"
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/* Opaque cache type -- defined in dvdnav_internal.h */
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/* typedef struct read_cache_s read_cache_t; */
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/* EXPERIMENTAL: Setting the following to 1 will use an experimental multi-threaded
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* read-ahead cache.
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*/
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#define _MULTITHREAD_ 0
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/* Constructor/destructors */
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read_cache_t *dvdnav_read_cache_new(dvdnav_t* dvd_self);
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void dvdnav_read_cache_free(read_cache_t* self);
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/* This function MUST be called whenever self->file changes. */
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void dvdnav_read_cache_clear(read_cache_t *self);
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/* This function is called just after reading the NAV packet. */
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void dvdnav_pre_cache_blocks(read_cache_t *self, int sector, size_t block_count);
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/* This function will do the cache read.
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* The buffer handed in must be malloced to take one dvd block.
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* On a cache hit, a different buffer will be returned though.
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* Those buffers must _never_ be freed. */
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int dvdnav_read_cache_block(read_cache_t *self, int sector, size_t block_count, uint8_t **buf);
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#endif /* __DVDNAV_READ_CACHE_H */
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