Enable libavfilter by default and fix pading for mxf-d10

Originally committed as revision 23048 to svn://svn.ffmpeg.org/ffmpeg/trunk

configure

@@ -89,7 +89,7 @@ Configuration options:
   --disable-avformat       disable libavformat build
   --disable-swscale        disable libswscale build
   --enable-postproc        enable GPLed postprocessing support [no]
-  --enable-avfilter        video filter support [no]
+  --disable-avfilter       disable video filter support [no]
   --enable-avfilter-lavf   video filters dependent on avformat [no]
   --enable-beosthreads     use BeOS threads [no]
   --enable-os2threads      use OS/2 threads [no]
@@ -1468,6 +1468,7 @@ host_os=$target_os_default
 # configurable options
 enable avcodec
 enable avdevice
+enable avfilter
 enable avformat
 enable avutil
 enable asm

tests/lavf-regression.sh

@@ -68,7 +68,7 @@ fi
 
 if [ -n "$do_mxf" ] ; then
 do_lavf mxf "-ar 48000 -bf 2 -timecode_frame_start 264363"
-do_lavf mxf_d10 "-ar 48000 -ac 2 -r 25 -s 720x576 -padtop 32 -vcodec mpeg2video -intra -flags +ildct+low_delay -dc 10 -flags2 +ivlc+non_linear_q -qscale 1 -ps 1 -qmin 1 -rc_max_vbv_use 1 -rc_min_vbv_use 1 -pix_fmt yuv422p -minrate 30000k -maxrate 30000k -b 30000k -bufsize 1200000 -top 1 -rc_init_occupancy 1200000 -qmax 12 -f mxf_d10"
+do_lavf mxf_d10 "-ar 48000 -ac 2 -r 25 -s 720x576 -vfilters pad=720:608:0:32 -vcodec mpeg2video -intra -flags +ildct+low_delay -dc 10 -flags2 +ivlc+non_linear_q -qscale 1 -ps 1 -qmin 1 -rc_max_vbv_use 1 -rc_min_vbv_use 1 -pix_fmt yuv422p -minrate 30000k -maxrate 30000k -b 30000k -bufsize 1200000 -top 1 -rc_init_occupancy 1200000 -qmax 12 -f mxf_d10"
 fi
 
 if [ -n "$do_ts" ] ; then