87 lines
1.8 KiB
C
87 lines
1.8 KiB
C
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/* Based on common.h from libavcodec. Modified extensively by Matt Campbell
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<mattcampbell@pobox.com> for the stand-alone mpaudec library. */
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#ifndef INTERNAL_H
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#define INTERNAL_H
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#if defined(_WIN32) && !defined(__MINGW32__) && !defined(__CYGWIN__)
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# define CONFIG_WIN32
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#endif
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <ctype.h>
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#include <math.h>
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#include <stddef.h>
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#include "mpaudec.h"
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#ifndef M_PI
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#define M_PI 3.14159265358979323846
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#endif
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#ifdef CONFIG_WIN32
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/* windows */
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typedef unsigned short uint16_t;
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typedef signed short int16_t;
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typedef unsigned char uint8_t;
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typedef unsigned int uint32_t;
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typedef unsigned __int64 uint64_t;
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typedef signed char int8_t;
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typedef signed int int32_t;
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typedef signed __int64 int64_t;
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# ifdef _DEBUG
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# define DEBUG
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# endif
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/* CONFIG_WIN32 end */
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#else
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/* unix */
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#include <inttypes.h>
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#endif /* !CONFIG_WIN32 */
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/* debug stuff */
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#if !defined(DEBUG) && !defined(NDEBUG)
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# define NDEBUG
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#endif
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#include <assert.h>
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/* bit input */
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typedef struct GetBitContext {
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const uint8_t *buffer;
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int index;
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int size_in_bits;
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} GetBitContext;
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int get_bits_count(const GetBitContext *s);
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#define VLC_TYPE int16_t
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typedef struct VLC {
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int bits;
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VLC_TYPE (*table)[2];
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int table_size, table_allocated;
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} VLC;
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unsigned int get_bits(GetBitContext *s, int n);
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unsigned int show_bits(const GetBitContext *s, int n);
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void skip_bits(GetBitContext *s, int n);
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void init_get_bits(GetBitContext *s,
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const uint8_t *buffer, int buffer_size);
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int init_vlc(VLC *vlc, int nb_bits, int nb_codes,
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const void *bits, int bits_wrap, int bits_size,
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const void *codes, int codes_wrap, int codes_size);
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void free_vlc(VLC *vlc);
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int get_vlc(GetBitContext *s, const VLC *vlc);
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#endif /* INTERNAL_H */
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