d5e1d2cdef
Fix checking of data type flags. Allow file-level filters to change output data type. Tweak analyzer threshold for markup type.
114 lines
2.8 KiB
C
114 lines
2.8 KiB
C
/*
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* This file is a part of Pcompress, a chunked parallel multi-
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* algorithm lossless compression and decompression program.
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*
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* Copyright (C) 2012-2013 Moinak Ghosh. All rights reserved.
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* Use is subject to license terms.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or (at 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,
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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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program.
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* If not, see <http://www.gnu.org/licenses/>.
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*
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* moinakg@belenix.org, http://moinakg.wordpress.com/
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*
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*/
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#ifndef _PC_ARCHIVE_FILTER_H
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#define _PC_ARCHIVE_FILTER_H
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <inttypes.h>
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#include <unistd.h>
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#include <archive.h>
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#include <archive_entry.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define FILTER_RETURN_SKIP (1)
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#define FILTER_RETURN_ERROR (-1)
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#define FILTER_RETURN_SOFT_ERROR (-2)
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#define FILTER_XATTR_ENTRY "_._pc_filter_xattr"
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#define FILTER_OUTPUT_MEM 1
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#define FILTER_OUTPUT_FILE 2
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#define HELPER_DEF_BUFSIZ (512 * 1024)
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#define WVPK_FILE_SIZE_LIMIT (18 * 1024 * 1024)
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/*
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* The biggest scratch buffer reqd by filter routines.
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* Currently this is the WavPack filter buffer.
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*/
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#define FILTER_SCRATCH_SIZE_MAX WVPK_FILE_SIZE_LIMIT
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#ifndef _MPLV2_LICENSE_
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# define PJG_FILE_SIZE_LIMIT (8 * 1024 * 1024)
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# define PJG_APPVERSION1 (25)
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# define PJG_APPVERSION2 (25)
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#endif
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#pragma pack(1)
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typedef struct _filter_std_hdr {
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uint64_t in_size;
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} filter_std_hdr_t;
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#pragma pack()
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typedef struct _filter_output {
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int output_type;
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uint8_t *out;
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size_t out_size;
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int out_fd;
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int hdr_valid;
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filter_std_hdr_t hdr;
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} filter_output_t;
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struct filter_info {
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struct archive *source_arc;
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struct archive *target_arc;
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struct archive_entry *entry;
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int fd;
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int compressing, block_size;
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int *type_ptr;
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int cmp_level;
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filter_output_t *fout;
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uchar_t scratch_buffer;
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size_t scratch_buffer_size;
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};
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struct filter_flags {
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int enable_packjpg;
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int enable_wavpack;
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int exe_preprocess;
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};
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typedef ssize_t (*filter_func_ptr)(struct filter_info *fi, void *filter_private);
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struct type_data {
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void *filter_private;
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filter_func_ptr filter_func;
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char *filter_name;
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int result_type;
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};
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void add_filters_by_type(struct type_data *typetab, struct filter_flags *ff);
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int type_tag_from_filter_name(struct type_data *typetab, const char *fname,
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size_t len);
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#ifdef __cplusplus
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}
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#endif
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#endif
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