configure: use libav, vappi and dxva2 feature depending on the below cases.

If libav option is set and configure cannot find libav, configure
will be terminated abnormally.

If libav option is not set and configure cannot detect libav,
configure will not be terminated abnormally. Otherwise, it will
enable libav feature.

Change-Id: I52f55f15da315cc4ccb2c2275df760e90c4c3613
Signed-off-by: Kitae Kim <kt920.kim@samsung.com>

diff --git a/configure b/configure
index 177a759..0a54bb8 100755 (executable)
--- a/configure
+++ b/configure
@@ -4146,9 +4146,8 @@ fi
 ########################################
 # check if dxva2 is available.
 
-if test "$dxva2" = "yes" ; then
-    dxva2="no"
-if test "$mingw32" = "yes" ; then
+check_dxva2() {
+
 cat > $TMPC << EOF
 #include <d3d9.h>
 #include <dxva2api.h>
@@ -4162,92 +4161,116 @@ int main(void) {
 EOF
 if compile_prog "" "" ; then
     dxva2="yes"
-fi
 else
-    error_exit "DXVA2 is supported only on Windows"
+    dxva2="no"
 fi
+
+}
+
+if test "$dxva2" != "no" ; then
+       if test "$mingw32" != "no" ; then
+               check_dxva2
+               if test "$dxva2" != "yes" ; then
+                       feature_not_found "dxva2"
+               fi
+       else
+               error_exit "DXVA2 is supported only on Windows"
+       fi
+else
+       check_dxva2
 fi
 
 ########################################
 # check if vaapi is available.
 
-if test "$vaapi" = "yes" ; then
-    vaapi="no"
-if test "$linux" = "yes" ; then
-    if $pkg_config libva --exists; then
-    if $pkg_config libva-x11 --exists; then
-        libva_cflags=`$pkg_config --cflags libva`
-        libva_libs=`$pkg_config --libs libva`
-        libva_x11_cflags=`$pkg_config --cflags libva-x11`
-        libva_x11_libs=`$pkg_config --libs libva-x11`
-
-        libs_softmmu="$libva_libs $libva_x11_libs $libs_softmmu"
-        vaapi="yes"
-    fi
-    fi
+check_vaapi() {
+
+if $pkg_config libva --exists; then
+       libva_cflags=`$pkg_config --cflags libva`
+       libva_libs=`$pkg_config --libs libva`
+       vaapi="yes"
 else
-    error_exit "VAAPI is supported only on Linux"
+       vaapi="no"
 fi
+
+if $pkg_config libva-x11 --exists; then
+       libva_x11_cflags=`$pkg_config --cflags libva-x11`
+       libva_x11_libs=`$pkg_config --libs libva-x11`
+       libs_softmmu="$libva_libs $libva_x11_libs $libs_softmmu"
+       vaapi="yes"
+else
+       vaapi="no"
+fi
+
+}
+
+if test "$vaapi" != "no" ; then
+       if test "$linux" != "no" ; then
+               check_vaapi
+               if test "$vaapi" != "yes" ; then
+                       feature_not_found "vaapi"
+               fi
+       else
+               error_exit "VAAPI is supported only on Linux"
+       fi
+else
+       check_vappi
 fi
 
 ##########################################
 # libav probe
 
+libavcodec_package="libavcodec"
+libavcodec_version="54.35.0"
+libavutil_package="libavutil"
+libavutil_version="52.3.0"
+libavformat_package="libavformat"
+libavformat_version="54.20.3"
+libavresample_package="libavresample"
+libavresample_version="1.0.1"
+
+check_libav() {
+echo "check $1"
+
+if $pkg_config --exists "$1 >= $2" ; then
+       libav_cflags=`$pkg_config --cflags $1`
+       libav_libs=`$pkg_config --libs $1`
+       libs_softmmu="$libav_libs $libs_softmmu"
+       libav="yes"
+else
+       libav="no"
+fi
+
+}
+
 if test "$libav" != "no"; then
-    libavcodec_package="libavcodec"
-    libavcodec_version="54.35.0"
-    libavutil_package="libavutil"
-    libavutil_version="52.3.0"
-    libavformat_package="libavformat"
-    libavformat_version="54.20.3"
-    libavresample_package="libavresample"
-    libavresample_version="1.0.1"
-
-    if $pkg_config --exists "$libavcodec_package >= $libavcodec_version" ; then
-        libav_cflags=`$pkg_config --cflags $libavcodec_package`
-        libav_libs=`$pkg_config --libs $libavcodec_package`
-        libs_softmmu="$libav_libs $libs_softmmu"
-        libav="yes"
-    else
-        #if test "$libav" = "yes" ; then
-        #    feature_not_found "libav"
-        #fi
-        libav="no"
-    fi
+       check_libav $libavcodec_package $libavcodec_version
+       if test "$libav" != "yes"; then
+               feature_not_found "libav"
+       fi
 
-    if $pkg_config --exists "$libavutil_package >= $libavutil_version" ; then
-        libav_libs=`$pkg_config --libs-only-l $libavutil_package`
-        libs_softmmu="$libav_libs $libs_softmmu"
-        libav="yes"
-    else
-        #if test "$libav" = "yes" ; then
-        #    feature_not_found "libav"
-        #fi
-        libav="no"
-    fi
+       check_libav $libavformat_package $libavformat_version
+       if test "$libav" != "yes"; then
+               feature_not_found "libav"
+       fi
 
-    if $pkg_config --exists "$libavformat_package >= $libavformat_version" ; then
-        libav_libs=`$pkg_config --libs-only-l $libavformat_package`
-        libs_softmmu="$libav_libs $libs_softmmu"
-        libav="yes"
-    else
-        #if test "$libav" = "yes" ; then
-        #    feature_not_found "libav"
-        #fi
-        libav="no"
-    fi
+       check_libav $libavutil_package $libavutil_version
+       if test "$libav" != "yes"; then
+               feature_not_found "libav"
+       fi
 
-    if $pkg_config --exists "$libavresample_package >= $libavresample_version" ; then
-        libav_libs=`$pkg_config --libs-only-l $libavresample_package`
-        libs_softmmu="$libav_libs $libs_softmmu"
-        libav="yes"
-    else
-        #if test "$libav" = "yes" ; then
-        #    feature_not_found "libav"
-        #fi
-        libav="no"
-    fi
+       check_libav $libavresample_package $libavresample_version
+       if test "$libav" != "yes"; then
+               feature_not_found "libav"
+       fi
+else
+       check_libav $libavcodec_package $libavcodec_version
+
+       check_libav $libavformat_package $libavformat_version
+
+       check_libav $libavutil_package $libavutil_version
 
+       check_libav $libavresample_package $libavresample_version
 fi
 
 ##########################################