* \param lsfq_min_distance minimum distance between LSFs
* \param lsfq_min minimum allowed LSF value
* \param lsfq_max maximum allowed LSF value
+ * \param lp_order LP filter order
*/
-void ff_acelp_reorder_lsf(int16_t* lsfq, int lsfq_min_distance, int lsqf_min, int lsfq_max);
+void ff_acelp_reorder_lsf(int16_t* lsfq, int lsfq_min_distance, int lsqf_min, int lsfq_max, int lp_order);
/**
* \brief Convert LSF to LSP
* \param lsp [out] LSP coefficients (-0x8000 <= (0.15) < 0x8000)
* \param lsf normalized LSF coefficients (0 <= (2.13) < 0x2000 * PI)
+ * \param lp_order LP filter order
*
* \remark It is safe to pass the same array into the lsf and lsp parameters.
*/
-void ff_acelp_lsf2lsp(int16_t *lsp, const int16_t *lsf);
+void ff_acelp_lsf2lsp(int16_t *lsp, const int16_t *lsf, int lp_order);
/**
* \brief LSP to LP conversion (3.2.6 of G.729)
* \param lp [out] decoded LP coefficients (-0x8000 <= (3.12) < 0x8000)
* \param lsp LSP coefficients (-0x8000 <= (0.15) < 0x8000)
+ * \param lp_half_order LP filter order, divided by 2
*/
-void ff_acelp_lsp2lpc(int16_t* lp, const int16_t* lsp);
+void ff_acelp_lsp2lpc(int16_t* lp, const int16_t* lsp, int lp_half_order);
/**
* \brief Interpolate LSP for the first subframe and convert LSP -> LP for both subframes (3.2.5 and 3.2.6 of G.729)
* \param lp_2nd [out] decoded LP coefficients for second subframe (-0x8000 <= (3.12) < 0x8000)
* \param lsp_2nd LSP coefficients of the second subframe (-0x8000 <= (0.15) < 0x8000)
* \param lsp_prev LSP coefficients from the second subframe of the previous frame (-0x8000 <= (0.15) < 0x8000)
+ * \param lp_order LP filter order
*/
-void ff_acelp_lp_decode(int16_t* lp_1st, int16_t* lp_2nd, const int16_t* lsp_2nd, const int16_t* lsp_prev);
+void ff_acelp_lp_decode(int16_t* lp_1st, int16_t* lp_2nd, const int16_t* lsp_2nd, const int16_t* lsp_prev, int lp_order);
#endif /* FFMPEG_LSP_H */