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echo-cancel: orc-ify some bits for optimisation

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This uses Orc to optimise an inner loop in the core NLMS function of the
Adrian echo canceller.
This commit is contained in:
Arun Raghavan 2010-09-13 18:41:30 +05:30
parent 963250abb9
commit 83d3c8f22b
9 changed files with 472 additions and 5 deletions
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56
m4/orc.m4 Normal file
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@ -0,0 +1,56 @@
dnl pkg-config-based checks for Orc
dnl specific:
dnl ORC_CHECK([REQUIRED_VERSION])
AC_DEFUN([ORC_CHECK],
[
ORC_REQ=ifelse([$1], , "0.4.5", [$1])
AC_ARG_ENABLE(orc,
AC_HELP_STRING([--enable-orc],[use Orc if installed]),
[case "${enableval}" in
auto) enable_orc=auto ;;
yes) enable_orc=yes ;;
no) enable_orc=no ;;
*) AC_MSG_ERROR(bad value ${enableval} for --enable-orc) ;;
esac
],
[enable_orc=auto]) dnl Default value
if test "x$enable_orc" != "xno" ; then
PKG_CHECK_MODULES(ORC, orc-0.4 >= $ORC_REQ, [
AC_DEFINE(HAVE_ORC, 1, [Use Orc])
ORCC=`$PKG_CONFIG --variable=orcc orc-0.4`
AC_SUBST(ORCC)
HAVE_ORC=yes
], [
if test "x$enable_orc" = "xyes" ; then
AC_MSG_ERROR([--enable-orc specified, but Orc >= $ORC_REQ not found])
fi
AC_DEFINE(DISABLE_ORC, 1, [Disable Orc])
HAVE_ORC=no
])
else
AC_DEFINE(DISABLE_ORC, 1, [Disable Orc])
HAVE_ORC=no
fi
AM_CONDITIONAL(HAVE_ORC, test "x$HAVE_ORC" = "xyes")
]))
AC_DEFUN([ORC_OUTPUT],
[
if test "$HAVE_ORC" = yes ; then
printf "configure: *** Orc acceleration enabled.\n"
else
if test "x$enable_orc" = "xno" ; then
printf "configure: *** Orc acceleration disabled by --disable-orc. Slower code paths\n"
printf " will be used.\n"
else
printf "configure: *** Orc acceleration disabled. Requires Orc >= $ORC_REQ, which was\n"
printf " not found. Slower code paths will be used.\n"
fi
fi
printf "\n"
])