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author | icculus <icculus@edf5b092-35ff-0310-97b2-ce42778d08ea> | 2008-06-01 18:53:28 +0000 |
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committer | icculus <icculus@edf5b092-35ff-0310-97b2-ce42778d08ea> | 2008-06-01 18:53:28 +0000 |
commit | 365b434ae956d192f2983ed9b2d863caa7d2ad75 (patch) | |
tree | 933aa6641899165f5308e0b70b9566f5bc91bc7f /code/libspeex/fftwrap.h | |
parent | b229b4d03d12aceb48df50ca6916a1058b1879fc (diff) | |
download | ioquake3-aero-365b434ae956d192f2983ed9b2d863caa7d2ad75.tar.gz ioquake3-aero-365b434ae956d192f2983ed9b2d863caa7d2ad75.zip |
Added libspeex to revision control, and updated Makefile to use it.
git-svn-id: svn://svn.icculus.org/quake3/trunk@1352 edf5b092-35ff-0310-97b2-ce42778d08ea
Diffstat (limited to 'code/libspeex/fftwrap.h')
-rw-r--r-- | code/libspeex/fftwrap.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/code/libspeex/fftwrap.h b/code/libspeex/fftwrap.h new file mode 100644 index 0000000..dfaf489 --- /dev/null +++ b/code/libspeex/fftwrap.h @@ -0,0 +1,58 @@ +/* Copyright (C) 2005 Jean-Marc Valin + File: fftwrap.h + + Wrapper for various FFTs + + 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. + + - Neither the name of the Xiph.org Foundation nor the names of its + contributors may be used to endorse or promote products derived from + this software without specific prior written permission. + + 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 FFTWRAP_H +#define FFTWRAP_H + +#include "arch.h" + +/** Compute tables for an FFT */ +void *spx_fft_init(int size); + +/** Destroy tables for an FFT */ +void spx_fft_destroy(void *table); + +/** Forward (real to half-complex) transform */ +void spx_fft(void *table, spx_word16_t *in, spx_word16_t *out); + +/** Backward (half-complex to real) transform */ +void spx_ifft(void *table, spx_word16_t *in, spx_word16_t *out); + +/** Forward (real to half-complex) transform of float data */ +void spx_fft_float(void *table, float *in, float *out); + +/** Backward (half-complex to real) transform of float data */ +void spx_ifft_float(void *table, float *in, float *out); + +#endif |