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# Configure paths for libavcodec
# Burkhard Plaum, 2004-08-12
dnl Compile an avcodec test program and figure out the version
AC_DEFUN([ACL_CHECK_AVCODEC],[
AC_MSG_CHECKING([for build ID in libavcodec, libs: $AVCODEC_LIBS])
CFLAGS_save=$CFLAGS
LIBS_save=$LIBS
CFLAGS="$GMERLIN_DEP_CFLAGS $CFLAGS $AVCODEC_CFLAGS"
LIBS="$GMERLIN_DEP_LIBS $AVCODEC_LIBS"
AVCODEC_HEADER=""
dnl Look for header
found_header="false"
AC_TRY_COMPILE([
#include <libavcodec/avcodec.h>],[], [found_header="true";AVCODEC_HEADER="<libavcodec/avcodec.h>";VAAPI_HEADER="<libavcodec/vaapi.h>" ],)
if test $found_header = "false"; then
AC_TRY_COMPILE([
#include <avcodec.h>],[],[found_header="true";AVCODEC_HEADER="<avcodec.h>";VAAPI_HEADER="<vaapi.h>"])
fi
if test $found_header = "false"; then
AC_TRY_COMPILE([
#include <ffmpeg/avcodec.h>],[], [found_header="true";AVCODEC_HEADER="<ffmpeg/avcodec.h>";VAAPI_HEADER="<ffmpeg/vaapi.h>" ],)
fi
AC_CHECK_HEADERS([libavcore/avcore.h])
avcodec_ok="false"
AC_TRY_RUN([
#include <stdio.h>
#include $AVCODEC_HEADER
int main()
{
FILE * output;
if(LIBAVCODEC_BUILD < $1)
return -1;
output=fopen("avcodec_version", "w");
fprintf(output, AV_TOSTRING(LIBAVCODEC_VERSION));
fclose(output);
return 0;
}
],
[
# program could be run
if test "x$AVCODEC_VERSION" = "x"; then
AVCODEC_VERSION=`cat avcodec_version`
fi
rm -f avcodec_version
avcodec_ok="true"
AC_MSG_RESULT(ok)
],
[
# program could not be run
AC_MSG_RESULT(failed)
])
have_avcodec_img_convert="false"
if test "x$avcodec_ok" = "xtrue"; then
avcodec_swscale_missing="false"
AC_MSG_CHECKING(for img_convert)
AC_TRY_LINK([#include <avcodec.h>],
[img_convert(NULL, 0, NULL, 0, 0, 0);
return 0;],
have_avcodec_img_convert=true
AC_MSG_RESULT(yes), AC_MSG_RESULT(no))
if test "x$have_avcodec_img_convert" != "xtrue"; then
if test "x$have_libswscale" != xtrue; then
avcodec_swscale_missing="true"
avcodec_ok="false"
fi
fi
fi
CFLAGS="$CFLAGS_save"
LIBS="$LIBS_save"
])
dnl ACL_PATH_AVCODEC(BUILD_ID [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
dnl Test for libavcodec, and define AVCODEC_CFLAGS, AVCODEC_LIBS and
dnl AVCODEC_VERSION
AC_DEFUN([ACL_PATH_AVCODEC],[
AC_ARG_WITH(avcodec,[ --with-avcodec=PFX Prefix where libavcodec is installed (optional)], avcodec_prefix="$withval", avcodec_prefix="")
dnl We need the _save variables because PKG_CHECK_MODULES will change
dnl the other variables
AVCODEC_CFLAGS_save=""
AVCODEC_LIBS_save=""
avcodec_done="false"
AH_TEMPLATE([AVCODEC_HEADER],
[Header for libavcodec])
AH_TEMPLATE([VAAPI_HEADER],
[Header for vaapi])
dnl
dnl First preference: configure options
dnl
if test "x$avcodec_prefix" != x; then
AVCODEC_CFLAGS="-I$avcodec_prefix/include"
AVCODEC_LIBS="-L$avcodec_prefix/lib -lavcodec"
ACL_CHECK_AVCODEC([$1])
if test "x$avcodec_ok" = "xtrue"; then
avcodec_done="true"
fi
fi
dnl
dnl Second Perference: Autodetect
dnl
if test "x$avcodec_done" = "xfalse"; then
PKG_CHECK_MODULES(AVCODEC, libavcodec, avcodec_orig="true", avcodec_orig="false")
dnl
dnl No idea for what this is good but libavcodec is not found if this is missing
dnl
if test "x$os_win32" = "xyes"; then
AVCODEC_LIBS="-L/usr/local/bin $AVCODEC_LIBS"
fi
ACL_CHECK_AVCODEC([$1])
if test "x$avcodec_ok" = "xtrue"; then
avcodec_done="true"
fi
fi
if test "x$avcodec_done" = "xtrue"; then
ifelse([$2], , :, [$2])
AC_DEFINE_UNQUOTED(AVCODEC_HEADER, $AVCODEC_HEADER)
AC_DEFINE_UNQUOTED(VAAPI_HEADER, $VAAPI_HEADER)
else
ifelse([$3], , :, [$3])
fi
])
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