Convert CR/LF -> LF
Spotted by Alam Arias
This commit is contained in:
Chris Robinson
parent
781444d12c
commit
e1965fe7d9
402
Alc/bs2b.c
402
Alc/bs2b.c
@ -1,201 +1,201 @@
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/*-
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* Copyright (c) 2005 Boris Mikhaylov
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "config.h"
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#include <math.h>
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#include "bs2b.h"
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#ifndef M_PI
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#define M_PI 3.14159265358979323846
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#endif
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/* Single pole IIR filter.
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* O[n] = a0*I[n] + a1*I[n-1] + b1*O[n-1]
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*/
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/* Lowpass filter */
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#define lo_filter(in, out_1) (bs2b->a0_lo*(in) + bs2b->b1_lo*(out_1))
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/* Highboost filter */
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#define hi_filter(in, in_1, out_1) (bs2b->a0_hi*(in) + bs2b->a1_hi*(in_1) + bs2b->b1_hi*(out_1))
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/* Set up all data. */
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static void init(struct bs2b *bs2b)
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{
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double Fc_lo, Fc_hi;
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double G_lo, G_hi;
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double x;
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if ((bs2b->srate > 192000) || (bs2b->srate < 2000))
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bs2b->srate = BS2B_DEFAULT_SRATE;
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switch(bs2b->level)
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{
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case BS2B_LOW_CLEVEL: /* Low crossfeed level */
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Fc_lo = 360.0;
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Fc_hi = 501.0;
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G_lo = 0.398107170553497;
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G_hi = 0.205671765275719;
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break;
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case BS2B_MIDDLE_CLEVEL: /* Middle crossfeed level */
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Fc_lo = 500.0;
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Fc_hi = 711.0;
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G_lo = 0.459726988530872;
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G_hi = 0.228208484414988;
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break;
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case BS2B_HIGH_CLEVEL: /* High crossfeed level (virtual speakers are closer to itself) */
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Fc_lo = 700.0;
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Fc_hi = 1021.0;
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G_lo = 0.530884444230988;
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G_hi = 0.250105790667544;
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break;
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case BS2B_LOW_ECLEVEL: /* Low easy crossfeed level */
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Fc_lo = 360.0;
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Fc_hi = 494.0;
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G_lo = 0.316227766016838;
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G_hi = 0.168236228897329;
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break;
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case BS2B_MIDDLE_ECLEVEL: /* Middle easy crossfeed level */
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Fc_lo = 500.0;
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Fc_hi = 689.0;
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G_lo = 0.354813389233575;
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G_hi = 0.187169483835901;
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break;
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default: /* High easy crossfeed level */
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bs2b->level = BS2B_HIGH_ECLEVEL;
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Fc_lo = 700.0;
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Fc_hi = 975.0;
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G_lo = 0.398107170553497;
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G_hi = 0.205671765275719;
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break;
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} /* switch */
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/* $fc = $Fc / $s;
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* $d = 1 / 2 / pi / $fc;
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* $x = exp(-1 / $d);
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*/
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x = exp(-2.0 * M_PI * Fc_lo / bs2b->srate);
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bs2b->b1_lo = x;
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bs2b->a0_lo = G_lo * (1.0 - x);
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x = exp(-2.0 * M_PI * Fc_hi / bs2b->srate);
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bs2b->b1_hi = x;
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bs2b->a0_hi = 1.0 - G_hi * (1.0 - x);
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bs2b->a1_hi = -x;
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bs2b->gain = 1.0 / (1.0 - G_hi + G_lo);
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} /* init */
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/* Exported functions.
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* See descriptions in "bs2b.h"
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*/
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void bs2b_set_level(struct bs2b *bs2b, int level)
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{
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if(level == bs2b->level)
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return;
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bs2b->level = level;
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init(bs2b);
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} /* bs2b_set_level */
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int bs2b_get_level(struct bs2b *bs2b)
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{
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return bs2b->level;
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} /* bs2b_get_level */
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void bs2b_set_srate(struct bs2b *bs2b, int srate)
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{
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if (srate == bs2b->srate)
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return;
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bs2b->srate = srate;
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init(bs2b);
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} /* bs2b_set_srate */
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int bs2b_get_srate(struct bs2b *bs2b)
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{
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return bs2b->srate;
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} /* bs2b_get_srate */
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void bs2b_clear(struct bs2b *bs2b)
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{
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int loopv = sizeof(bs2b->last_sample);
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while (loopv)
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{
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((char *)&bs2b->last_sample)[--loopv] = 0;
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}
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} /* bs2b_clear */
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int bs2b_is_clear(struct bs2b *bs2b)
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{
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int loopv = sizeof(bs2b->last_sample);
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while (loopv)
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{
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if (((char *)&bs2b->last_sample)[--loopv] != 0)
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return 0;
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}
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return 1;
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} /* bs2b_is_clear */
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void bs2b_cross_feed(struct bs2b *bs2b, float *sample)
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{
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/* Lowpass filter */
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bs2b->last_sample.lo[0] = lo_filter(sample[0], bs2b->last_sample.lo[0]);
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bs2b->last_sample.lo[1] = lo_filter(sample[1], bs2b->last_sample.lo[1]);
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/* Highboost filter */
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bs2b->last_sample.hi[0] = hi_filter(sample[0], bs2b->last_sample.asis[0], bs2b->last_sample.hi[0]);
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bs2b->last_sample.hi[1] = hi_filter(sample[1], bs2b->last_sample.asis[1], bs2b->last_sample.hi[1]);
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bs2b->last_sample.asis[0] = sample[0];
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bs2b->last_sample.asis[1] = sample[1];
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/* Crossfeed */
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sample[0] = bs2b->last_sample.hi[0] + bs2b->last_sample.lo[1];
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sample[1] = bs2b->last_sample.hi[1] + bs2b->last_sample.lo[0];
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/* Bass boost cause allpass attenuation */
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sample[0] *= bs2b->gain;
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sample[1] *= bs2b->gain;
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/* Clipping of overloaded samples */
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#if 0
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if (sample[0] > 1.0)
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sample[0] = 1.0;
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if (sample[0] < -1.0)
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sample[0] = -1.0;
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if (sample[1] > 1.0)
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sample[1] = 1.0;
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if (sample[1] < -1.0)
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sample[1] = -1.0;
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#endif
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} /* bs2b_cross_feed */
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/*-
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* Copyright (c) 2005 Boris Mikhaylov
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "config.h"
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#include <math.h>
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#include "bs2b.h"
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#ifndef M_PI
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#define M_PI 3.14159265358979323846
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#endif
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/* Single pole IIR filter.
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* O[n] = a0*I[n] + a1*I[n-1] + b1*O[n-1]
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*/
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/* Lowpass filter */
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#define lo_filter(in, out_1) (bs2b->a0_lo*(in) + bs2b->b1_lo*(out_1))
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/* Highboost filter */
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#define hi_filter(in, in_1, out_1) (bs2b->a0_hi*(in) + bs2b->a1_hi*(in_1) + bs2b->b1_hi*(out_1))
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/* Set up all data. */
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static void init(struct bs2b *bs2b)
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{
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double Fc_lo, Fc_hi;
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double G_lo, G_hi;
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double x;
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if ((bs2b->srate > 192000) || (bs2b->srate < 2000))
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bs2b->srate = BS2B_DEFAULT_SRATE;
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switch(bs2b->level)
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{
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case BS2B_LOW_CLEVEL: /* Low crossfeed level */
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Fc_lo = 360.0;
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Fc_hi = 501.0;
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G_lo = 0.398107170553497;
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G_hi = 0.205671765275719;
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break;
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case BS2B_MIDDLE_CLEVEL: /* Middle crossfeed level */
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Fc_lo = 500.0;
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Fc_hi = 711.0;
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G_lo = 0.459726988530872;
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G_hi = 0.228208484414988;
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break;
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case BS2B_HIGH_CLEVEL: /* High crossfeed level (virtual speakers are closer to itself) */
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Fc_lo = 700.0;
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Fc_hi = 1021.0;
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G_lo = 0.530884444230988;
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G_hi = 0.250105790667544;
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break;
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case BS2B_LOW_ECLEVEL: /* Low easy crossfeed level */
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Fc_lo = 360.0;
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Fc_hi = 494.0;
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G_lo = 0.316227766016838;
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G_hi = 0.168236228897329;
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break;
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case BS2B_MIDDLE_ECLEVEL: /* Middle easy crossfeed level */
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Fc_lo = 500.0;
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Fc_hi = 689.0;
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G_lo = 0.354813389233575;
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G_hi = 0.187169483835901;
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break;
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default: /* High easy crossfeed level */
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bs2b->level = BS2B_HIGH_ECLEVEL;
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Fc_lo = 700.0;
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Fc_hi = 975.0;
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G_lo = 0.398107170553497;
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G_hi = 0.205671765275719;
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break;
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} /* switch */
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/* $fc = $Fc / $s;
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* $d = 1 / 2 / pi / $fc;
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* $x = exp(-1 / $d);
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*/
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x = exp(-2.0 * M_PI * Fc_lo / bs2b->srate);
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bs2b->b1_lo = x;
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bs2b->a0_lo = G_lo * (1.0 - x);
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x = exp(-2.0 * M_PI * Fc_hi / bs2b->srate);
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bs2b->b1_hi = x;
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bs2b->a0_hi = 1.0 - G_hi * (1.0 - x);
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bs2b->a1_hi = -x;
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bs2b->gain = 1.0 / (1.0 - G_hi + G_lo);
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} /* init */
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/* Exported functions.
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* See descriptions in "bs2b.h"
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*/
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void bs2b_set_level(struct bs2b *bs2b, int level)
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{
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if(level == bs2b->level)
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return;
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bs2b->level = level;
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init(bs2b);
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} /* bs2b_set_level */
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int bs2b_get_level(struct bs2b *bs2b)
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{
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return bs2b->level;
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} /* bs2b_get_level */
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void bs2b_set_srate(struct bs2b *bs2b, int srate)
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{
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if (srate == bs2b->srate)
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return;
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bs2b->srate = srate;
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init(bs2b);
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} /* bs2b_set_srate */
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int bs2b_get_srate(struct bs2b *bs2b)
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{
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return bs2b->srate;
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} /* bs2b_get_srate */
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void bs2b_clear(struct bs2b *bs2b)
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{
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int loopv = sizeof(bs2b->last_sample);
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while (loopv)
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{
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((char *)&bs2b->last_sample)[--loopv] = 0;
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}
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} /* bs2b_clear */
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int bs2b_is_clear(struct bs2b *bs2b)
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{
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int loopv = sizeof(bs2b->last_sample);
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while (loopv)
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{
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if (((char *)&bs2b->last_sample)[--loopv] != 0)
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return 0;
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}
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return 1;
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} /* bs2b_is_clear */
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void bs2b_cross_feed(struct bs2b *bs2b, float *sample)
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{
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/* Lowpass filter */
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bs2b->last_sample.lo[0] = lo_filter(sample[0], bs2b->last_sample.lo[0]);
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bs2b->last_sample.lo[1] = lo_filter(sample[1], bs2b->last_sample.lo[1]);
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/* Highboost filter */
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bs2b->last_sample.hi[0] = hi_filter(sample[0], bs2b->last_sample.asis[0], bs2b->last_sample.hi[0]);
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bs2b->last_sample.hi[1] = hi_filter(sample[1], bs2b->last_sample.asis[1], bs2b->last_sample.hi[1]);
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bs2b->last_sample.asis[0] = sample[0];
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bs2b->last_sample.asis[1] = sample[1];
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/* Crossfeed */
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sample[0] = bs2b->last_sample.hi[0] + bs2b->last_sample.lo[1];
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sample[1] = bs2b->last_sample.hi[1] + bs2b->last_sample.lo[0];
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/* Bass boost cause allpass attenuation */
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sample[0] *= bs2b->gain;
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sample[1] *= bs2b->gain;
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/* Clipping of overloaded samples */
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#if 0
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if (sample[0] > 1.0)
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sample[0] = 1.0;
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if (sample[0] < -1.0)
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sample[0] = -1.0;
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if (sample[1] > 1.0)
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sample[1] = 1.0;
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if (sample[1] < -1.0)
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sample[1] = -1.0;
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#endif
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} /* bs2b_cross_feed */
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@ -1,109 +1,109 @@
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/*-
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* Copyright (c) 2005 Boris Mikhaylov
|
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*
|
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* Permission is hereby granted, free of charge, to any person obtaining
|
||||
* a copy of this software and associated documentation files (the
|
||||
* "Software"), to deal in the Software without restriction, including
|
||||
* without limitation the rights to use, copy, modify, merge, publish,
|
||||
* distribute, sublicense, and/or sell copies of the Software, and to
|
||||
* permit persons to whom the Software is furnished to do so, subject to
|
||||
* the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be
|
||||
* included in all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
||||
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
||||
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
||||
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
|
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
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*/
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#ifndef BS2B_H
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#define BS2B_H
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/* Number of crossfeed levels */
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#define BS2B_CLEVELS 3
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/* Normal crossfeed levels */
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#define BS2B_HIGH_CLEVEL 3
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#define BS2B_MIDDLE_CLEVEL 2
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#define BS2B_LOW_CLEVEL 1
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/* Easy crossfeed levels */
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#define BS2B_HIGH_ECLEVEL BS2B_HIGH_CLEVEL + BS2B_CLEVELS
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#define BS2B_MIDDLE_ECLEVEL BS2B_MIDDLE_CLEVEL + BS2B_CLEVELS
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#define BS2B_LOW_ECLEVEL BS2B_LOW_CLEVEL + BS2B_CLEVELS
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/* Default crossfeed levels */
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#define BS2B_DEFAULT_CLEVEL BS2B_HIGH_ECLEVEL
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/* Default sample rate (Hz) */
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#define BS2B_DEFAULT_SRATE 44100
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||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif /* __cplusplus */
|
||||
|
||||
struct bs2b {
|
||||
int level; /* Crossfeed level */
|
||||
int srate; /* Sample rate (Hz) */
|
||||
|
||||
/* Lowpass IIR filter coefficients */
|
||||
double a0_lo;
|
||||
double b1_lo;
|
||||
|
||||
/* Highboost IIR filter coefficients */
|
||||
double a0_hi;
|
||||
double a1_hi;
|
||||
double b1_hi;
|
||||
|
||||
/* Global gain against overloading */
|
||||
double gain;
|
||||
|
||||
/* Buffer of last filtered sample.
|
||||
* [0] - first channel, [1] - second channel
|
||||
*/
|
||||
struct t_last_sample {
|
||||
double asis[2];
|
||||
double lo[2];
|
||||
double hi[2];
|
||||
} last_sample;
|
||||
};
|
||||
|
||||
/* Clear buffers and set new coefficients with new crossfeed level value.
|
||||
* level - crossfeed level of *LEVEL values.
|
||||
*/
|
||||
void bs2b_set_level(struct bs2b *bs2b, int level);
|
||||
|
||||
/* Return current crossfeed level value */
|
||||
int bs2b_get_level(struct bs2b *bs2b);
|
||||
|
||||
/* Clear buffers and set new coefficients with new sample rate value.
|
||||
* srate - sample rate by Hz.
|
||||
*/
|
||||
void bs2b_set_srate(struct bs2b *bs2b, int srate);
|
||||
|
||||
/* Return current sample rate value */
|
||||
int bs2b_get_srate(struct bs2b *bs2b);
|
||||
|
||||
/* Clear buffer */
|
||||
void bs2b_clear(struct bs2b *bs2b);
|
||||
|
||||
/* Return 1 if buffer is clear */
|
||||
int bs2b_is_clear(struct bs2b *bs2b);
|
||||
|
||||
/* Crossfeeds one stereo sample that are pointed by sample.
|
||||
* [0] - first channel, [1] - second channel.
|
||||
* Returns crossfided samle by sample pointer.
|
||||
*/
|
||||
|
||||
/* sample poits to floats */
|
||||
void bs2b_cross_feed(struct bs2b *bs2b, float *sample);
|
||||
|
||||
#ifdef __cplusplus
|
||||
} /* extern "C" */
|
||||
#endif /* __cplusplus */
|
||||
|
||||
#endif /* BS2B_H */
|
||||
/*-
|
||||
* Copyright (c) 2005 Boris Mikhaylov
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining
|
||||
* a copy of this software and associated documentation files (the
|
||||
* "Software"), to deal in the Software without restriction, including
|
||||
* without limitation the rights to use, copy, modify, merge, publish,
|
||||
* distribute, sublicense, and/or sell copies of the Software, and to
|
||||
* permit persons to whom the Software is furnished to do so, subject to
|
||||
* the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be
|
||||
* included in all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
||||
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
||||
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
||||
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
|
||||
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#ifndef BS2B_H
|
||||
#define BS2B_H
|
||||
|
||||
/* Number of crossfeed levels */
|
||||
#define BS2B_CLEVELS 3
|
||||
|
||||
/* Normal crossfeed levels */
|
||||
#define BS2B_HIGH_CLEVEL 3
|
||||
#define BS2B_MIDDLE_CLEVEL 2
|
||||
#define BS2B_LOW_CLEVEL 1
|
||||
|
||||
/* Easy crossfeed levels */
|
||||
#define BS2B_HIGH_ECLEVEL BS2B_HIGH_CLEVEL + BS2B_CLEVELS
|
||||
#define BS2B_MIDDLE_ECLEVEL BS2B_MIDDLE_CLEVEL + BS2B_CLEVELS
|
||||
#define BS2B_LOW_ECLEVEL BS2B_LOW_CLEVEL + BS2B_CLEVELS
|
||||
|
||||
/* Default crossfeed levels */
|
||||
#define BS2B_DEFAULT_CLEVEL BS2B_HIGH_ECLEVEL
|
||||
/* Default sample rate (Hz) */
|
||||
#define BS2B_DEFAULT_SRATE 44100
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif /* __cplusplus */
|
||||
|
||||
struct bs2b {
|
||||
int level; /* Crossfeed level */
|
||||
int srate; /* Sample rate (Hz) */
|
||||
|
||||
/* Lowpass IIR filter coefficients */
|
||||
double a0_lo;
|
||||
double b1_lo;
|
||||
|
||||
/* Highboost IIR filter coefficients */
|
||||
double a0_hi;
|
||||
double a1_hi;
|
||||
double b1_hi;
|
||||
|
||||
/* Global gain against overloading */
|
||||
double gain;
|
||||
|
||||
/* Buffer of last filtered sample.
|
||||
* [0] - first channel, [1] - second channel
|
||||
*/
|
||||
struct t_last_sample {
|
||||
double asis[2];
|
||||
double lo[2];
|
||||
double hi[2];
|
||||
} last_sample;
|
||||
};
|
||||
|
||||
/* Clear buffers and set new coefficients with new crossfeed level value.
|
||||
* level - crossfeed level of *LEVEL values.
|
||||
*/
|
||||
void bs2b_set_level(struct bs2b *bs2b, int level);
|
||||
|
||||
/* Return current crossfeed level value */
|
||||
int bs2b_get_level(struct bs2b *bs2b);
|
||||
|
||||
/* Clear buffers and set new coefficients with new sample rate value.
|
||||
* srate - sample rate by Hz.
|
||||
*/
|
||||
void bs2b_set_srate(struct bs2b *bs2b, int srate);
|
||||
|
||||
/* Return current sample rate value */
|
||||
int bs2b_get_srate(struct bs2b *bs2b);
|
||||
|
||||
/* Clear buffer */
|
||||
void bs2b_clear(struct bs2b *bs2b);
|
||||
|
||||
/* Return 1 if buffer is clear */
|
||||
int bs2b_is_clear(struct bs2b *bs2b);
|
||||
|
||||
/* Crossfeeds one stereo sample that are pointed by sample.
|
||||
* [0] - first channel, [1] - second channel.
|
||||
* Returns crossfided samle by sample pointer.
|
||||
*/
|
||||
|
||||
/* sample poits to floats */
|
||||
void bs2b_cross_feed(struct bs2b *bs2b, float *sample);
|
||||
|
||||
#ifdef __cplusplus
|
||||
} /* extern "C" */
|
||||
#endif /* __cplusplus */
|
||||
|
||||
#endif /* BS2B_H */
|
||||
|
||||
1442
include/AL/efx.h
1442
include/AL/efx.h
File diff suppressed because it is too large
Load Diff
Loading…
x
Reference in New Issue
Block a user