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Diffstat (limited to 'thirdparty/opus/celt/mdct.h')
| -rw-r--r-- | thirdparty/opus/celt/mdct.h | 112 |
1 files changed, 0 insertions, 112 deletions
diff --git a/thirdparty/opus/celt/mdct.h b/thirdparty/opus/celt/mdct.h deleted file mode 100644 index 160ae4e0f3..0000000000 --- a/thirdparty/opus/celt/mdct.h +++ /dev/null @@ -1,112 +0,0 @@ -/* Copyright (c) 2007-2008 CSIRO - Copyright (c) 2007-2008 Xiph.Org Foundation - Written by Jean-Marc Valin */ -/* - 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 COPYRIGHT OWNER - 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. -*/ - -/* This is a simple MDCT implementation that uses a N/4 complex FFT - to do most of the work. It should be relatively straightforward to - plug in pretty much and FFT here. - - This replaces the Vorbis FFT (and uses the exact same API), which - was a bit too messy and that was ending up duplicating code - (might as well use the same FFT everywhere). - - The algorithm is similar to (and inspired from) Fabrice Bellard's - MDCT implementation in FFMPEG, but has differences in signs, ordering - and scaling in many places. -*/ - -#ifndef MDCT_H -#define MDCT_H - -#include "opus_defines.h" -#include "kiss_fft.h" -#include "arch.h" - -typedef struct { - int n; - int maxshift; - const kiss_fft_state *kfft[4]; - const kiss_twiddle_scalar * OPUS_RESTRICT trig; -} mdct_lookup; - -#if defined(HAVE_ARM_NE10) -#include "arm/mdct_arm.h" -#endif - - -int clt_mdct_init(mdct_lookup *l,int N, int maxshift, int arch); -void clt_mdct_clear(mdct_lookup *l, int arch); - -/** Compute a forward MDCT and scale by 4/N, trashes the input array */ -void clt_mdct_forward_c(const mdct_lookup *l, kiss_fft_scalar *in, - kiss_fft_scalar * OPUS_RESTRICT out, - const opus_val16 *window, int overlap, - int shift, int stride, int arch); - -/** Compute a backward MDCT (no scaling) and performs weighted overlap-add - (scales implicitly by 1/2) */ -void clt_mdct_backward_c(const mdct_lookup *l, kiss_fft_scalar *in, - kiss_fft_scalar * OPUS_RESTRICT out, - const opus_val16 * OPUS_RESTRICT window, - int overlap, int shift, int stride, int arch); - -#if !defined(OVERRIDE_OPUS_MDCT) -/* Is run-time CPU detection enabled on this platform? */ -#if defined(OPUS_HAVE_RTCD) && defined(HAVE_ARM_NE10) - -extern void (*const CLT_MDCT_FORWARD_IMPL[OPUS_ARCHMASK+1])( - const mdct_lookup *l, kiss_fft_scalar *in, - kiss_fft_scalar * OPUS_RESTRICT out, const opus_val16 *window, - int overlap, int shift, int stride, int arch); - -#define clt_mdct_forward(_l, _in, _out, _window, _overlap, _shift, _stride, _arch) \ - ((*CLT_MDCT_FORWARD_IMPL[(arch)&OPUS_ARCHMASK])(_l, _in, _out, \ - _window, _overlap, _shift, \ - _stride, _arch)) - -extern void (*const CLT_MDCT_BACKWARD_IMPL[OPUS_ARCHMASK+1])( - const mdct_lookup *l, kiss_fft_scalar *in, - kiss_fft_scalar * OPUS_RESTRICT out, const opus_val16 *window, - int overlap, int shift, int stride, int arch); - -#define clt_mdct_backward(_l, _in, _out, _window, _overlap, _shift, _stride, _arch) \ - (*CLT_MDCT_BACKWARD_IMPL[(arch)&OPUS_ARCHMASK])(_l, _in, _out, \ - _window, _overlap, _shift, \ - _stride, _arch) - -#else /* if defined(OPUS_HAVE_RTCD) && defined(HAVE_ARM_NE10) */ - -#define clt_mdct_forward(_l, _in, _out, _window, _overlap, _shift, _stride, _arch) \ - clt_mdct_forward_c(_l, _in, _out, _window, _overlap, _shift, _stride, _arch) - -#define clt_mdct_backward(_l, _in, _out, _window, _overlap, _shift, _stride, _arch) \ - clt_mdct_backward_c(_l, _in, _out, _window, _overlap, _shift, _stride, _arch) - -#endif /* end if defined(OPUS_HAVE_RTCD) && defined(HAVE_ARM_NE10) && !defined(FIXED_POINT) */ -#endif /* end if !defined(OVERRIDE_OPUS_MDCT) */ - -#endif |