Revision 82696bee libavcodec/mdct.c

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libavcodec/mdct.c
21 21
/*
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 * init MDCT or IMDCT computation
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 */
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int mdct_init(MDCTContext *s, int nbits, int inverse)
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int ff_mdct_init(MDCTContext *s, int nbits, int inverse)
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{
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    int n, n4, i;
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    float alpha;
......
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 * @param input N/2 samples
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 * @param tmp N/2 samples
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 */
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void imdct_calc(MDCTContext *s, FFTSample *output, 
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                const FFTSample *input, FFTSample *tmp)
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void ff_imdct_calc(MDCTContext *s, FFTSample *output, 
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                   const FFTSample *input, FFTSample *tmp)
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{
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    int k, n8, n4, n2, n, j;
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    const uint16_t *revtab = s->fft.revtab;
......
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 * @param out N/2 samples
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 * @param tmp temporary storage of N/2 samples
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 */
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void mdct_calc(MDCTContext *s, FFTSample *out, 
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               const FFTSample *input, FFTSample *tmp)
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void ff_mdct_calc(MDCTContext *s, FFTSample *out, 
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                  const FFTSample *input, FFTSample *tmp)
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{
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    int i, j, n, n8, n4, n2, n3;
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    FFTSample re, im, re1, im1;
......
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    }
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}
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void mdct_end(MDCTContext *s)
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void ff_mdct_end(MDCTContext *s)
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{
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    av_freep(&s->tcos);
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    av_freep(&s->tsin);

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