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unknown codec

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[Quote] #1
30 Oct 2004 02:23 am
nascadre
Guest
I have an avi file which windows media player says is not a valid video file. I tried Gspot with the same result, so I cannot determine it’s codec. But surprisingly Videolan Player (VLC) can play the video without a hitch. What is going on?

[Quote] #2
30 Oct 2004 08:26 am
anonymous
Guest
I’m suspecting mpeg-2 (I could be wrong though). You might want to feed the file into additional diagnostic tools such as avicodec or videoinspector.

[Quote] #3
30 Oct 2004 08:31 am
anonymous
Guest
Thought of this after I posted: it could also be matroska or ogm. I know media player classic handles those natively. I don’t know if that holds true of vlc as well. (gspot and avicodec can read ogm, but not matroska, and videotoolbox is the only one that can read matroska)

[Quote] #4
30 Oct 2004 09:15 am
nascadre
Guest
Thank you very much Anonymous. I downloaded both videoinspector and avicodec. Videoinspector doesn’t recognise the file but avicodec does. It says that Video is Divx Networks Divx V 5 and Audio is Ogg Vorbis. Now, I know about Ogg Vorbis, but what is Divx Networks Divx 5? Can I convert it to normal Divx with Mp3 audio?

[Quote] #5
30 Oct 2004 09:50 am
anonymous
Guest
Can you just doublecheck what the container is? It should be next to type= on the first line in avicodec. It should be either ogg or avi.
I don’t recall exactly, but I read somewhere that avi can’t natively hold ogg audio, because it doesn’t support variable bitrate audio. A workaround exists for this, but may make the avi incompatible with most players. (I can’t find where I read it though)
divx 5 would be downloadable at divx.com.
If you want to transcode your file, you could use virtualdubmod, which can read both avi and ogm. after picking file, save as, just choose direct stream copy for the video stream, and pick full processing mode for the audio.
http://virtualdubmod.sourceforge.net

[Quote] #6
31 Oct 2004 01:15 am
nascadre
Guest
Yes you’re right. The file type type is OGG. I’ve tried Virtualdubmod. It worked. Problem solved. I’m really grateful to you. Thank you again Anonymous.

[Quote] #7
07 Aug 2006 09:20 am
tenshi
Guest
i have downloaded a movie and i don’t know the video codec for it, my computer could play ogg and matroaka, avi, mpg4, and others but it doesn’t show the video only the sound, i tryed vlc and divx to see if it plays it but the same thing happens only play the sound not the video.

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