86 lines
3.0 KiB
C
86 lines
3.0 KiB
C
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#ifndef SOUND_DECODER_H
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#define SOUND_DECODER_H
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#include <stdbool.h>
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#include <stddef.h>
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#define SOUND_DECODER_IN_BUFFER_SIZE (512)
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typedef int(SoundDecoderReadProc)(int fileHandle, void* buffer, unsigned int size);
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typedef struct SoundDecoder {
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SoundDecoderReadProc* readProc;
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int fd;
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unsigned char* bufferIn;
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size_t bufferInSize;
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// Next input byte.
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unsigned char* nextIn;
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// Number of bytes remaining in the input buffer.
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int remainingInSize;
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// Bit accumulator.
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int hold;
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// Number of bits in bit accumulator.
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int bits;
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int field_20;
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int field_24;
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int field_28;
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int field_2C;
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unsigned char* field_30;
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unsigned char* field_34;
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int field_38;
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int field_3C;
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int field_40;
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int field_44;
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int field_48;
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unsigned char* field_4C;
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int field_50;
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} SoundDecoder;
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#if _WIN32
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static_assert(sizeof(SoundDecoder) == 84, "wrong size");
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#endif
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typedef int (*DECODINGPROC)(SoundDecoder* soundDecoder, int offset, int bits);
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extern int gSoundDecodersCount;
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extern bool _inited_;
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extern DECODINGPROC _ReadBand_tbl[32];
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extern unsigned char _pack11_2[128];
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extern unsigned char _pack3_3[32];
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extern unsigned short word_6ADA00[128];
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extern unsigned char* _AudioDecoder_scale0;
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extern unsigned char* _AudioDecoder_scale_tbl;
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bool soundDecoderPrepare(SoundDecoder* a1, SoundDecoderReadProc* readProc, int fileHandle);
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unsigned char soundDecoderReadNextChunk(SoundDecoder* a1);
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void _init_pack_tables();
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int _ReadBand_Fail_(SoundDecoder* soundDecoder, int offset, int bits);
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int _ReadBand_Fmt0_(SoundDecoder* soundDecoder, int offset, int bits);
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int _ReadBand_Fmt3_16_(SoundDecoder* soundDecoder, int offset, int bits);
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int _ReadBand_Fmt17_(SoundDecoder* soundDecoder, int offset, int bits);
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int _ReadBand_Fmt18_(SoundDecoder* soundDecoder, int offset, int bits);
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int _ReadBand_Fmt19_(SoundDecoder* soundDecoder, int offset, int bits);
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int _ReadBand_Fmt20_(SoundDecoder* soundDecoder, int offset, int bits);
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int _ReadBand_Fmt21_(SoundDecoder* soundDecoder, int offset, int bits);
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int _ReadBand_Fmt22_(SoundDecoder* soundDecoder, int offset, int bits);
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int _ReadBand_Fmt23_(SoundDecoder* soundDecoder, int offset, int bits);
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int _ReadBand_Fmt24_(SoundDecoder* soundDecoder, int offset, int bits);
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int _ReadBand_Fmt26_(SoundDecoder* soundDecoder, int offset, int bits);
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int _ReadBand_Fmt27_(SoundDecoder* soundDecoder, int offset, int bits);
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int _ReadBand_Fmt29_(SoundDecoder* soundDecoder, int offset, int bits);
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int _ReadBands_(SoundDecoder* ptr);
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void _untransform_subband0(unsigned char* a1, unsigned char* a2, int a3, int a4);
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void _untransform_subband(unsigned char* a1, unsigned char* a2, int a3, int a4);
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void _untransform_all(SoundDecoder* a1);
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size_t soundDecoderDecode(SoundDecoder* soundDecoder, void* buffer, size_t size);
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void soundDecoderFree(SoundDecoder* soundDecoder);
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SoundDecoder* soundDecoderInit(SoundDecoderReadProc* readProc, int fileHandle, int* out_a3, int* out_a4, int* out_a5);
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#endif /* SOUND_DECODER_H */
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