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

Originally committed as revision 20602 to svn://svn.ffmpeg.org/ffmpeg/trunk

Vitor Sessak committed 16 years ago

Commit 691a4231 parent d2b34ef2 files · +15 −13Browse files

Unified · Split

2 files

@@ -128,17 +128,7 @@ void ff_acelp_lp_decode(int16_t* lp_1st, int16_t* lp_2nd, const int16_t* lsp_2nd · 127 unmodified lines
128	128	ff_acelp_lsp2lpc(lp_2nd, lsp_2nd, lp_order >> 1);
129	129	}
130	130
131		−/**
132		− * Computes the Pa / (1 + z(-1)) or Qa / (1 - z(-1)) coefficients
133		− * needed for LSP to LPC conversion.
134		− * We only need to calculate the 6 first elements of the polynomial.
135		− *
136		− * @param lsp line spectral pairs in cosine domain
137		− * @param f [out] polynomial input/output as a vector
138		− *
139		− * TIA/EIA/IS-733 2.4.3.3.5-1/2
140		− */
141		−static void lsp2polyf(const double lsp, double f, int lp_half_order)
	131	+void ff_lsp2polyf(const double lsp, double f, int lp_half_order)
142	132	{
143	133	int i, j;
144	134
@@ -162,8 +152,8 @@ void ff_acelp_lspd2lpc(const double lsp, float lpc, int lp_half_order) · 17 unmodified lines
162	152
163	153	assert(lp_half_order <= MAX_LP_HALF_ORDER);
164	154
165		− lsp2polyf(lsp, pa, lp_half_order);
166		− lsp2polyf(lsp + 1, qa, lp_half_order);
	155	+ ff_lsp2polyf(lsp, pa, lp_half_order);
	156	+ ff_lsp2polyf(lsp + 1, qa, lp_half_order);
167	157
168	158	while (lp_half_order--) {
169	159	double paf = pa[lp_half_order+1] + pa[lp_half_order];

@@ -104,4 +104,16 @@ void ff_acelp_lspd2lpc(const double lsp, float lpc, int lp_half_order); · 103 unmodified lines
104	104	*/
105	105	void ff_sort_nearly_sorted_floats(float *vals, int len);
106	106
	107	+/**
	108	+ * Computes the Pa / (1 + z(-1)) or Qa / (1 - z(-1)) coefficients
	109	+ * needed for LSP to LPC conversion.
	110	+ * We only need to calculate the 6 first elements of the polynomial.
	111	+ *
	112	+ * @param lsp line spectral pairs in cosine domain
	113	+ * @param f [out] polynomial input/output as a vector
	114	+ *
	115	+ * TIA/EIA/IS-733 2.4.3.3.5-1/2
	116	+ */
	117	+void ff_lsp2polyf(const double lsp, double f, int lp_half_order);
	118	+
107	119	#endif /* AVCODEC_LSP_H */

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