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-rw-r--r--libavcodec/lsp.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/libavcodec/lsp.h b/libavcodec/lsp.h
index 2c22058062..e3af30d300 100644
--- a/libavcodec/lsp.h
+++ b/libavcodec/lsp.h
@@ -76,6 +76,11 @@ void ff_acelp_lsf2lspd(double *lsp, const float *lsf, int lp_order);
void ff_acelp_lsp2lpc(int16_t* lp, const int16_t* lsp, int lp_half_order);
/**
+ * LSP to LP conversion (5.2.4 of AMR-WB)
+ */
+void ff_amrwb_lsp2lpc(const double *lsp, float *lp, int lp_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[out] lp_1st decoded LP coefficients for first subframe (-0x8000 <= (3.12) < 0x8000)
* \param[out] lp_2nd decoded LP coefficients for second subframe (-0x8000 <= (3.12) < 0x8000)