vlc: enable xml_plugin and ogg_plugin

Install libogg-dev libopus-dev libxml2-dev

projects/vlc/Dockerfile

@@ -16,7 +16,8 @@
 
 FROM gcr.io/oss-fuzz-base/base-builder
 RUN apt-get update && apt-get install -y make autoconf automake libtool \
-  pkg-config cmake flex bison gettext libglu1-mesa-dev libmatroska-dev
+  pkg-config cmake flex bison gettext libglu1-mesa-dev libmatroska-dev \
+  libogg-dev libopus-dev libxml2-dev
 RUN git clone --depth 1 https://code.videolan.org/videolan/vlc.git vlc
 RUN git clone --depth 1 https://code.videolan.org/VideoLAN.org/vlc-fuzz-corpus.git vlc/fuzz-corpus
 WORKDIR vlc

projects/vlc/build.sh

@@ -21,12 +21,7 @@ sed -i 's/-fsanitize-coverage=trace-cmp//g' ./configure.ac
 sed -i 's/-fsanitize-coverage=trace-pc//g' ./configure.ac
 sed -i 's/-lFuzzer//g'  ./configure.ac
 
-# In order to build statically we avoid libxml and ogg plugins.
 sed -i 's/..\/..\/lib\/libvlc_internal.h/lib\/libvlc_internal.h/g' ./test/src/input/decoder.c
-sed -i 's/..\/modules\/libxml_plugin.la//g' ./test/Makefile.am
-sed -i 's/..\/modules\/libogg_plugin.la//g' ./test/Makefile.am
-sed -i 's/f(misc_xml_xml)//g' ./test/src/input/demux-run.c
-sed -i 's/f(demux_ogg)//g' ./test/src/input/demux-run.c
 
 # Ensure that we compile with the correct link flags.
 RULE="vlc_demux_libfuzzer_LDADD"
@@ -42,7 +37,7 @@ sed -i "s/${RULE}/${FUZZ_LDFLAGS}\n${RULE}/g" ./test/Makefile.am
 # Use libstdc++, not libc++, since the base image's prebuild libraries require
 # libstdc++.
 CXXFLAGS="$CXXFLAGS -stdlib=libstdc++" \
-./configure --disable-ogg --disable-oggspots --disable-libxml2 --disable-lua \
+./configure --disable-lua \
             --disable-shared \
             --enable-static \
             --enable-vlc=no \