ffmpeg - h264 to xvid creates large file

Posted by fatnic on Super User See other posts from Super User or by fatnic
Published on 2010-12-30T16:57:15Z Indexed on 2010/12/30 17:56 UTC
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ffmpeg

|

xvid

|

h264

I'm trying to use ffmpeg to convert a h264/aac video file to an xvid/mp3 file so I can play it in my ultra-cheap media player.

At the moment the converted video file is TWICE the size of the original mp4. Is there any way to get a smaller file size without loosing too much quality? Even a drop to -qmin 1 is pretty awful!

The command i'm using is

ffmpeg -i input.mp4 -vcodec libxvid -sameq -acodec libmp3lame -ab 128k -ac 2 output.avi

And the ffmpeg output is

  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mp4'
  Metadata:
    major_brand     : isom
    minor_version   : 1
    compatible_brands: isomavc1
  Duration: 01:34:27.69, start: 0.000000, bitrate: 1520 kb/s
    Stream #0.0(und): Video: h264, yuv420p, 720x304 [PAR 1:1 DAR 45:19], 1387 kb/s, 25 fps, 25 tbr, 25k tbn, 50 tbc
    Stream #0.1(und): Audio: aac, 48000 Hz, stereo, s16, 128 kb/s
Output #0, avi, to 'output.avi':
  Metadata:
    ISFT            : Lavf52.64.2
    Stream #0.0(und): Video: mpeg4, yuv420p, 720x304 [PAR 1:1 DAR 45:19], q=2-31, 200 kb/s, 25 tbn, 25 tbc
    Stream #0.1(und): Audio: libmp3lame, 48000 Hz, stereo, s16, 128 kb/s
Stream mapping:
  Stream #0.0 -> #0.0
  Stream #0.1 -> #0.1

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