Having Problems converting h.264 mp4 to xvid using avisynth & vdubmod

[Rusty Shackleford]

Hello everyone,

I have an H.264 mp4 file that I've been trying to convert to an xvid avi file. I usually use an avisynth script like, DirectShowSource("filename.mp4"), to load the mp4 file in to virtualdubmod. From there I just convert it using the xvid codec. However, when I tried to use that script on this specific file vdubmod gives me the error "no video stream found".

The file plays fine using media player classic and vlc; however, only the audio plays in quicktime. When I used Gspot to determine if I had the correct codecs for the file it said my codec status is undertmined. I have ffdshow installed and the libavcodec is being used to decode H.264 files.

The file only consists of a H.264 mpeg4 video track and an AAC audio track. I've tried various programs to convert or demux the mp4 to no avail. Any help provided would be greatly appreciated.

[Soopafresh]

Demux using YAMB 1.6 and run Dgavcindex on the resulting .h264 file. Do a search on both.

[Rusty Shackleford]

Demux using YAMB 1.6 and run Dgavcindex on the resulting .h264 file. Do a search on both.

I previously tried using YAMB but the resulting demuxed files were always corrupted. I think I found a solution. I tried using Dr. Divx and for some reason that program worked. Even though it may not be the best solution I think I'll convert the original file to a large divx file and then compress that using xvid. Thanks for your help Soopafresh.

[ronnylov]

You can also try demuxing with MKVEXtractGUI