Define separate version number for libpostproc.

Originally committed as revision 4859 to svn://svn.ffmpeg.org/ffmpeg/trunk

configure

@@ -1490,6 +1490,7 @@ if test "$vhook" = "yes" ; then
   echo "#define HAVE_VHOOK 1" >> $TMPH
 fi
 
+pp_version=`grep '#define LIBPOSTPROC_VERSION ' "$source_path/libavcodec/libpostproc/postprocess.h" | sed 's/[^0-9\.]//g'`
 lavc_version=`grep '#define LIBAVCODEC_VERSION ' "$source_path/libavcodec/avcodec.h" | sed 's/[^0-9\.]//g'`
 lavf_version=`grep '#define LIBAVFORMAT_VERSION ' "$source_path/libavformat/avformat.h" | sed 's/[^0-9\.]//g'`
 lavu_version=`grep '#define LIBAVUTIL_VERSION ' "$source_path/libavutil/avutil.h" | sed 's/[^0-9\.]//g'`

libavcodec/libpostproc/postprocess.h

@@ -29,6 +29,12 @@
 extern "C" {
 #endif
 
+#define LIBPOSTPROC_VERSION_INT ((51<<16)+(1<<8)+0)
+#define LIBPOSTPROC_VERSION     51.1.0
+#define LIBPOSTPROC_BUILD       LIBPOSTPROC_VERSION_INT
+
+#define LIBPOSTPROC_IDENT       "postproc" AV_STRINGIFY(LIBPOSTPROC_VERSION)
+
 #define PP_QUALITY_MAX 6
 
 #define QP_STORE_T int8_t