Hi,

I wonder if it is possible to encode videos in the Ogg Theora format under MorphOS? Does anyone have any experience with this format and perhaps even some hints or command line proposals if there is a softwar which can do this.

Thanks in advance for your help.

Regards

Christoph

Hi,
I can't say if there is any program/command that could perform this operation but I tried this:
http://video.online-convert.com/convert-to-ogg
and it works using OWB.
Well, I guess large files need a real good, solid internet connection since a 3 mb file became a 6 mb after conversion.

Hi, thanks for the link, which I tried already and it works. Though the "in" file must not have more then 100 MB otherwise one needs to register. And as you sayed, if one wants to re-encode big files, 200, 300 or more MB, then it's not suitable. Better would be a local solution to re-encode within MorphOS with e. g. Mencoder or ffmpeg.

I think a local solution would be more flexibla also, concerning vbitrate, abitrate, resize, etc.

Since your question stimulate curiosity, I went here and there inside the web-land searching for some infos.
As I've read in many threads theoretically is possible to encode a file with mencoder and ffmpeg to theora format if libtheora and libvorbis are installed but I guess no such libraries exist for MorphOS (I only found OS4 versions on Aminet ). Another problem is that ffmpeg needs to be compilated with support for theora and vorbis. In fact, I tried a n encoding with ffmpeg using this command
Code:
but it doesn't find the codec to perform operation. You will find the example in the third link I posted.
Here some interesting (I hope...) links:

https://bbs.archlinux.org/viewtopic.php?id=83928
http://forum.ubuntu-fr.org/viewtopic.php?id=396429
http://superuser.com/questions/352850/theora-encode-init-failed-when-convertingflv-toogg-theora-video-using-ffmpe

I found a vorbisfile.library for morphos on Aminet that is the porting of libogg, libvorbis and libvorbisfile though I don't know if it should be useful:

http://aminet.net/package/util/libs/VorbisFile_Library

Well, libraries and new ffmpeg compilation are needed to have a local program that could perform this encoding.

In theory, my mencoder port is compiled with libtheora and libogg, so it should just work, actually.

As for my ffmpeg port, it was just a quick try, so i doubt i included them.

Interesting, I searched in the read me and I didn't find it (or probably I didn read it...).
Thanks Fab!

@ Fab

I tested ffmpeg and no ogg support is not included

But if mencoder can encode in this format, it's enough for me. I have to try it. You wouldn't have a commandline example?

Thanks very much for feed-back.

Christoph