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Check for sinh(), cosh() and asinh() and define our own implementations if they're not available. Fixes bug #520880.

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Original commit message from CVS:
* configure.ac:
* gst/audiofx/Makefile.am:
* gst/audiofx/audiochebband.c:
* gst/audiofx/audiocheblimit.c:
* gst/audiofx/math_compat.h:
Check for sinh(), cosh() and asinh() and define our own
implementations if they're not available. Fixes bug #520880.
This commit is contained in:
Sebastian Dröge 2008-03-07 13:08:42 +00:00
parent 7f9ddba043
commit c299138aaf
6 changed files with 72 additions and 2 deletions
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10
ChangeLog
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@ -1,3 +1,13 @@
2008-03-07 Sebastian Dröge <slomo@circular-chaos.org>
* configure.ac:
* gst/audiofx/Makefile.am:
* gst/audiofx/audiochebband.c:
* gst/audiofx/audiocheblimit.c:
* gst/audiofx/math_compat.h:
Check for sinh(), cosh() and asinh() and define our own
implementations if they're not available. Fixes bug #520880.
2008-03-07 Sebastian Dröge <slomo@circular-chaos.org>
Patch by: Olivier Crete <tester at tester dot ca>

2
configure.ac
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@ -180,7 +180,7 @@ dnl *** checks for library functions ***
LIBS_SAVE=$LIBS
LIBS="$LIBS $LIBM"
AC_CHECK_FUNCS(rint)
AC_CHECK_FUNCS(rint sinh cosh asinh)
LIBS=$LIBS_SAVE
dnl Check for mmap (needed by electricfence plugin)

3
gst/audiofx/Makefile.am
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@ -34,5 +34,6 @@ noinst_HEADERS = audiopanorama.h \
audiocheblimit.h \
audiochebband.h \
audiowsincband.h \
audiowsinclimit.h
audiowsinclimit.h \
math_compat.h

2
gst/audiofx/audiochebband.c
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@ -85,6 +85,8 @@
#include <math.h>
#include "math_compat.h"
#include "audiochebband.h"
#define GST_CAT_DEFAULT gst_audio_cheb_band_debug

2
gst/audiofx/audiocheblimit.c
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@ -81,6 +81,8 @@
#include <math.h>
#include "math_compat.h"
#include "audiocheblimit.h"
#define GST_CAT_DEFAULT gst_audio_cheb_limit_debug

55
gst/audiofx/math_compat.h Normal file
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@ -0,0 +1,55 @@
/*
* GStreamer
* Copyright (C) 2008 Sebastian Dröge <slomo@circular-chaos.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __MATH_COMPAT_H__
#define __MATH_COMPAT_H__
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <glib.h>
#include <math.h>
#ifndef HAVE_ASINH
static inline gdouble
asinh (gdouble x)
{
return log(x + sqrt (x * x + 1));
}
#endif
#ifndef HAVE_SINH
static inline gdouble
sinh (gdouble x)
{
return 0.5 * (exp (x) - exp (-x));
}
#endif
#ifndef HAVE_COSH
static inline gdouble
cosh (gdouble x)
{
return 0.5 * (exp (x) + exp (-x));
}
#endif
#endif /* __MATH_COMPAT_H__ */