shallow zip-file copy from codec2 e9d726bf20

1 files changed, 41 insertions, 0 deletions

diff --git a/src/lpcnet_freq.h b/src/lpcnet_freq.h
new file mode 100644
index 0000000..1c29204
--- /dev/null
+++ b/src/lpcnet_freq.h
@@ -0,0 +1,41 @@
+/*
+   lpcnet_freq.h
+
+   freq.c from LPCnet project, I think this code originally came from
+   Opus.
+*/
+
+/* Copyright (c) 2017-2018 Mozilla */
+/*
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions
+   are met:
+
+   - Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+
+   - Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+   ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+   A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef __LPCNET_FREQ__
+#define __LPCNET_FREQ__
+
+#define LPCNET_FREQ_MAX_BANDS 18
+
+int lpcnet_compute_band_energy(float *bandE, float *bandCentrekHz, COMP *Sw, float Fs, int Nfft);
+
+#endif