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63 lines
No EOL
2.1 KiB
C
63 lines
No EOL
2.1 KiB
C
/*
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read_utk.h - Copyright (c) 2011-2012 Fatbag <X-Fi6@phppoll.org>
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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typedef struct
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{
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char sID[4];
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DWORD dwOutSize;
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DWORD dwWfxSize;
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/* WAVEFORMATEX */
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WORD wFormatTag;
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WORD nChannels;
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DWORD nSamplesPerSec;
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DWORD nAvgBytesPerSec;
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WORD nBlockAlign;
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WORD wBitsPerSample;
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DWORD cbSize;
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unsigned Frames;
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unsigned UTKDataSize;
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} utkheader_t;
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typedef struct {
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const uint8_t *InData;
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unsigned UnreadBitsValue, UnreadBitsCount;
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int UseLattice;
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unsigned NoiseFloor;
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float FixedCodebook[64]; /* Fixed codebook gain matrix */
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float ImpulseTrain[12]; /* Impulse train matrix */
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float R[12]; /* Autocorrelation coefficient matrix */
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float Delay[324];
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float DecompressedBlock[432];
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} utkparams_t;
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#ifdef __cplusplus
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extern "C" {
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#endif
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int utk_read_header(utkheader_t * UTKHeader, const uint8_t * Buffer, unsigned FileSize);
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int utk_decode(const uint8_t *__restrict InBuffer, uint8_t *__restrict OutBuffer, unsigned Frames);
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void UTKGenerateTables(void);
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uint8_t ReadCC(utkparams_t *p, uint8_t bits);
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void SetUTKParameters(utkparams_t *p);
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void DecompressBlock(utkparams_t *p);
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void LatticeFilter(utkparams_t *p, int Voiced, float * Window, int Interval);
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void Synthesize(utkparams_t *p, unsigned Sample, unsigned Blocks);
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void PredictionFilter(const float *__restrict c2, float *__restrict Residual);
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#ifdef __cplusplus
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}
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#endif |