[tatica@checha Escritorio]$ mencoder hackergotchi.avi -oac pcm -ovc lavc -lavcopts vcodec=xvid:mbd=2:trell:autoaspect -sub hackergotchi.srt -subfont-text-scale 3 -o hackergotchi-subtitulado.avi
MEncoder 1.0rc2-4.1.2 (C) 2000-2007 MPlayer Team
CPU: Intel(R) Pentium(R) D CPU 3.40GHz (Family: 15, Model: 6, Stepping: 5)
CPUflags: Type: 15 MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled with runtime CPU detection.
success: format: 0  data: 0x0 - 0x92d532
AVI file format detected.
[aviheader] Video stream found, -vid 0
[aviheader] Audio stream found, -aid 1
VIDEO:  [XVID]  720x480  24bpp  29.970 fps  400.8 kbps (48.9 kbyte/s)
[V] filefmt:3  fourcc:0x44495658  size:720x480  fps:29.97  ftime:=0.0334
==========================================================================
Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
AUDIO: 48000 Hz, 2 ch, s16le, 112.0 kbit/7.29% (ratio: 14000->192000)
Selected audio codec: [mp3] afm: mp3lib (mp3lib MPEG layer-2, layer-3)
==========================================================================
SUB: Detected subtitle file format: subviewer
SUB: Read 15 subtitles.
Cannot find codec 'xvid' in libavcodec...
Couldn't open video filter 'lavc'.
Failed to open the encoder.