user@tux:> ffmpeg -i Video.m2v -vf "split [out1] [out2]; [out2] scale=iw/4:ih/4 [patch1]; [out1] [patch1] overlay=20:50 [out]" -target pal-dvd -y Video_new.m2v
ffmpeg version N-39995-g9750254 Copyright (c) 2000-2012 the FFmpeg developers
  built on Apr 20 2012 09:25:55 with gcc 4.5.1 20101208 [gcc-4_5-branch revision 167585]
  configuration: --shlibdir=/usr/lib64 --prefix=/usr --mandir=/usr/share/man --libdir=/usr/lib64 --enable-shared --disable-static --enable-debug --disable-stripping --extra-cflags='-fmessage-length=0 -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector -funwind-tables -fasynchronous-unwind-tables -g -fPIC -I/usr/include/gsm' --enable-gpl --enable-x11grab --enable-version3 --enable-pthreads --enable-avfilter --enable-libvpx --enable-libmp3lame --enable-libvorbis --enable-libtheora --enable-libspeex --enable-libxvid --enable-libx264 --enable-libschroedinger --enable-libdirac --enable-libgsm --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-postproc --enable-libdc1394 --enable-librtmp --enable-libfreetype
  libavutil      51. 46.100 / 51. 46.100
  libavcodec     54. 14.101 / 54. 14.101
  libavformat    54.  3.100 / 54.  3.100
  libavdevice    53.  4.100 / 53.  4.100
  libavfilter     2. 71.101 /  2. 71.101
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0. 11.100 /  0. 11.100
  libpostproc    52.  0.100 / 52.  0.100
Input #0, mpegvideo, from 'Video.m2v':
  Duration: N/A, bitrate: N/A
    Stream #0:0: Video: mpeg2video (Main), yuv420p, 720x576 [SAR 64:45 DAR 16:9], 8075 kb/s, 25 fps, 25 tbr, 1200k tbn, 50 tbc
[buffer @ 0x81c720] w:720 h:576 pixfmt:yuv420p tb:1/1000000 sar:64/45 sws_param:flags=2
[scale @ 0x962da0] w:720 h:576 fmt:yuv420p sar:64/45 -> w:720 h:576 fmt:yuv420p sar:64/45 flags:0x4
[scale @ 0x62f5c0] w:720 h:576 fmt:yuv420p sar:64/45 -> w:180 h:144 fmt:yuva420p sar:64/45 flags:0x4
[overlay @ 0x630020] main w:720 h:576 fmt:yuv420p overlay x:20 y:50 w:180 h:144 fmt:yuva420p
[overlay @ 0x630020] main_tb:1/1000000 overlay_tb:1/1000000 -> tb:1/1000000 exact:1
Output #0, dvd, to 'Video_new.m2v':
  Metadata:
    encoder         : Lavf54.3.100
    Stream #0:0: Video: mpeg2video, yuv420p, 720x576 [SAR 64:45 DAR 16:9], q=2-31, 6000 kb/s, 90k tbn, 25 tbc
Stream mapping:
  Stream #0:0 -> #0:0 (mpeg2video -> mpeg2video)
Press [q] to stop, [?] for help
[buffer @ 0x81c720] request_frame() called with no available frame!                                                                                       
    Last message repeated 1 times                                                                                                                         
AV Filter told us it has a frame available but failed to output one4519.2kbits/s    
frame= 1740 fps=105 q=2.0 Lsize=   38098kB time=00:01:09.56 bitrate=4486.8kbits/s                                                                         
video:37298kB audio:0kB global headers:0kB muxing overhead 2.143793%