ffmpeg/libavcodec/tableprint.h
Reimar Döffinger 8de0859bcb Extend and move macros to create table printing functions to header.
Simplifies creating custom functions for printing DV VLC-related tables.

Originally committed as revision 22621 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-03-21 14:46:32 +00:00

93 lines
3.2 KiB
C

/*
* Generate a file for hardcoded tables
*
* Copyright (c) 2009 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_TABLEPRINT_H
#define AVCODEC_TABLEPRINT_H
#include <stdint.h>
#include <stdio.h>
#define WRITE_1D_FUNC_ARGV(name, type, linebrk, fmtstr, ...)\
void write_##name##_array(const void *arg, int len, int dummy)\
{\
const type *data = arg;\
int i;\
printf(" ");\
for (i = 0; i < len - 1; i++) {\
printf(" "fmtstr",", __VA_ARGS__);\
if ((i & linebrk) == linebrk) printf("\n ");\
}\
printf(" "fmtstr"\n", __VA_ARGS__);\
}
#define WRITE_1D_FUNC(name, type, fmtstr, linebrk)\
WRITE_1D_FUNC_ARGV(name, type, linebrk, fmtstr, data[i])
#define WRITE_2D_FUNC(name, type)\
void write_##name##_2d_array(const void *arg, int len, int len2)\
{\
const type *data = arg;\
int i;\
printf(" {\n");\
for (i = 0; i < len; i++) {\
write_##name##_array(data + i * len2, len2, 0);\
printf(i == len - 1 ? " }\n" : " }, {\n");\
}\
}
/**
* \defgroup printfuncs Predefined functions for printing tables
*
* \{
*/
void write_int8_array (const void *, int, int);
void write_uint8_array (const void *, int, int);
void write_uint16_array (const void *, int, int);
void write_uint32_array (const void *, int, int);
void write_float_array (const void *, int, int);
void write_int8_2d_array (const void *, int, int);
void write_uint8_2d_array (const void *, int, int);
void write_uint32_2d_array(const void *, int, int);
/** \} */ // end of printfuncs group
struct tabledef {
/** String that declares the array. Adding " = { ..." after it should
* make a valid initializer, adding "extern" before and ";" if possible
* should make a valid extern declaration. */
const char *declaration;
/** Function used to print the table data (i.e. the part in {}).
* Should be one of the predefined write_*_array functions. */
void (*printfunc)(const void *, int, int);
/** Pointer passed to the printfunc, usually a pointer to the start
* of the array to be printed. */
const void *data;
int size; ///< size of the first dimension of the array
int size2; ///< size of the second dimension of the array if any
};
/** Initializes all the tables described in the tables array */
void tableinit(void);
/** Describes the tables that should be printed */
extern const struct tabledef tables[];
#endif /* AVCODEC_TABLEPRINT_H */