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Make lsp2polyf() function non-static for upcoming usage in SIPR

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Originally committed as revision 20602 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Vitor Sessak
2009-11-24 16:58:50 +00:00
parent d2b34efe22
commit 691a4232ee
2 changed files with 15 additions and 13 deletions
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12
libavcodec/lsp.h
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@@ -104,4 +104,16 @@ void ff_acelp_lspd2lpc(const double *lsp, float *lpc, int lp_half_order);
*/
void ff_sort_nearly_sorted_floats(float *vals, int len);
/**
* Computes the Pa / (1 + z(-1)) or Qa / (1 - z(-1)) coefficients
* needed for LSP to LPC conversion.
* We only need to calculate the 6 first elements of the polynomial.
*
* @param lsp line spectral pairs in cosine domain
* @param f [out] polynomial input/output as a vector
*
* TIA/EIA/IS-733 2.4.3.3.5-1/2
*/
void ff_lsp2polyf(const double *lsp, double *f, int lp_half_order);
#endif /* AVCODEC_LSP_H */