libraries/libsamplerate: Initial import
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Author : Erik de Castro Lopo
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Secret Rabbit Code (aka libsamplerate) is a Sample Rate Converter
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for audio. One example of where such a thing would be useful is
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converting audio from the CD sample rate of 44.1kHz to the 48kHz
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sample rate used by DAT players.
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SRC is capable of arbitrary and time varying conversions ;
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from downsampling by a factor of 256 to upsampling by the same
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factor. Arbitrary in this case means that the ratio of input and
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output sample rates can be an irrational number. The conversion
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ratio can also vary with time for speeding up and slowing down
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effects.
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SRC provides a small set of converters to allow quality to be traded
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off against computation cost. The current best converter provides
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a signal-to-noise ratio of 97dB with -3dB passband extending from
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DC to 96% of the theoretical best bandwidth for a given pair of
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input and output sample rates.
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#!/bin/sh
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# Slackware build script for libsamplerate 0.1.2
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# Written by paul wisehart wise@lupulin.net
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# Modified by the SlackBuild project.
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PRGNAM=libsamplerate
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VERSION=0.1.2
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ARCH=${ARCH:-i486}
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BUILD=${BUILD:-1}
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TAG=${TAG:-_SBo}
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CWD=$(pwd)
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TMP=${TMP:-/tmp/SBo}
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PKG=$TMP/package-$PRGNAM
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OUTPUT=${OUTPUT:-/tmp}
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if [ "$ARCH" = "i486" ]; then
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SLKCFLAGS="-O2 -march=i486 -mtune=i686"
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elif [ "$ARCH" = "i686" ]; then
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SLKCFLAGS="-O2 -march=i686 -mtune=i686"
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fi
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rm -rf $PKG
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mkdir -p $TMP $PKG $OUTPUT
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cd $TMP || exit 1
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rm -rf $PRGNAM-$VERSION
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tar xvzf $CWD/$PRGNAM-$VERSION.tar.gz || exit 1
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cd $PRGNAM-$VERSION || exit 1
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chown -R root:root .
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chmod -R u+w,go+r-w,a-s .
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CFLAGS="$SLKCFLAGS" \
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CXXFLAGS="$SLKCFLAGS" \
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./configure \
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--prefix=/usr \
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--sysconfdir=/etc \
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--disable-static \
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--localstatedir=/var || exit 1
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make DESTDIR=$PKG || exit 1
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make install DESTDIR=$PKG || exit 1
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( cd $PKG
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find . | xargs file | grep "executable" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
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find . | xargs file | grep "shared object" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
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)
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mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
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cp -a COPYING README doc/* $PKG/usr/doc/$PRGNAM-$VERSION
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cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
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mkdir -p $PKG/install
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cat $CWD/slack-desc > $PKG/install/slack-desc
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cd $PKG
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/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.tgz
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PRGNAM="libsamplerate"
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VERSION="0.1.2"
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HOMEPAGE="http://www.mega-nerd.com/SRC/"
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DOWNLOAD="http://www.mega-nerd.com/SRC/libsamplerate-0.1.2.tar.gz"
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MD5SUM="06861c2c6b8e5273c9b80cf736b9fd0e"
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MAINTAINER="paul wisehart"
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EMAIL="wise@lupulin.net"
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APPROVED="BP{k}"
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@ -0,0 +1,11 @@
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libsamplerate: libsamplerate (Sample Rate Converter for audio)
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libsamplerate:
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libsamplerate: Secret Rabbit Code (aka libsamplerate) is a Sample Rate Converter
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libsamplerate: for audio. One example of where such a thing would be useful is
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libsamplerate: converting audio from the CD sample rate of 44.1kHz to the 48kHz
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libsamplerate: sample rate used by DAT players. SRC is capable of arbitrary
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libsamplerate: and time varying conversions. SRC provides a small set of
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libsamplerate: converters to allow quality to be traded off against
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libsamplerate: computation cost.
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libsamplerate:
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libsamplerate:
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