winff econversion problem

[glenfordwilliams]

today i was trying to convert a video with winff but kept getting errors each time i try

Seems stream 0 codec frame rate differs from container frame rate: 47.95 (5994/125) -> 23.98 (24000/1001)
Input #0, matroska, from '/home/glenford/Downloads/filename.mkv':
  Metadata:
    doctype         : matroska
  Duration: 00:22:36.48, start: 0.000000, bitrate: 384 kb/s
    Stream #0.0(eng): Video: h264, yuv420p, 1280x720 [PAR 1:1 DAR 16:9], 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc
    Stream #0.1(eng): Audio: ac3, 48000 Hz, 5.1, s16, 384 kb/s
    Stream #0.2(eng): Audio: aac, 48000 Hz, stereo, s16
Unknown encoder 'libmp3lame'
Press Enter to Continue

[ramesh]

1. Do you have the encoder libmp3lame installed?
2. Is the version of winff the current version?
3. What distro are you using?

One method I use for converting matroska videos is the following script:

#!/bin/sh
 
INPUT=$1
OUTPUT=$2
 
mplayer "$INPUT" -ao pcm:fast:file=audio.wav -vc null -vo null
mencoder "$INPUT" \
    -ffourcc divx \
    -ovc lavc -lavcopts vcodec=mpeg4:vhq:vbitrate=9800 \
    -audiofile audio.wav \
    -oac mp3lame -lameopts vbr=3 \
    -slang eng \
    -sws 2 -vf scale=720:576 \
    -o "$OUTPUT"
 
rm -f audio.wav

make sure you have mencoder and mplayer installed before running the above.