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Webm Error

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Kit Carrau
Webm Error
on Jan 27, 2011 at 11:11:25 am

Hi,

I am trying to convert video files to the webm format. I am using
FFmpeg and have installed the libvpx library. I can confirm this when
I run the following:

$ ./ffmpeg -formats 2> /dev/null | grep WebM
E webm WebM file format

$ ./ffmpeg -codecs 2> /dev/null | grep libvpx
DEV libvpx libvpx VP8

Which means I should be able to convert to webm? However when I run
"ffmpeg -i [input.mp4] [output.webm]", I get the following error:

"Encoder (codec id 146) not found for output stream #0.0"

Has anyone got any ideas?

Many Thanks,

Kit


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Michael Rampe
Re: Webm Error
on Jan 27, 2011 at 8:56:06 pm

[Kit Carrau] "Which means I should be able to convert to webm? However when I run
"ffmpeg -i [input.mp4] [output.webm]", I get the following error:

"Encoder (codec id 146) not found for output stream #0.0""


Have you tried specifying the codec rather than relying on FFmpeg choosing based on output container?

Example: -vcodec libvpx -b 1500k

Michael


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