opus - Oct 2013 - help with opus_demo

Hi

I used opus_demo to clarify how opus works, I try this command:

opus_demo -e" audio 8000 1 8000 -cbr  /somedirectory/pcm_mono_ochomil.raw
/somedirectory/test.opus

And I get the file test.opus, then comes the first problem, this file
hasn't header so i can't reproduce it using an external tool, how can i
add
a header to this file

Then when i trie to run

opus_demo -d 8000 1 /somedirectory/test.opus testFinal.raw

I cannot make it working

I hope that someone can help me, thanks in advance

Toni
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On 2013-10-21 5:08 AM, Antonio Juan wrote:
> I used opus_demo to clarify how opus works, I try this command:
> 
> opus_demo -e" audio 8000 1 8000 -cbr 
> /somedirectory/pcm_mono_ochomil.raw /somedirectory/test.opus
opus_demo doesn't support .opus files. It uses a special raw format just
for testing. You want opusenc and opusdec from the opus-tools package.

 -r

Thanks for the answer, Giles,finally it works and I get the point of the
libOpus, and opusenc.

The problem now is that I have the raw audio from a microphone, and i want
to compress it to an opus file. How I need to proceed:

raw audio -> [opus audio] -> [[Header][opus audio]].opus

but how can I add the header, I need the ogg lib,

I must programm this in c, it is possible to do it using only libopus or I
also need some things from ogg library.

thamks in advacnce

Toni


2013/10/21 Ralph Giles <giles at thaumas.net>
> On 2013-10-21 5:08 AM, Antonio Juan wrote:
>
> > I used opus_demo to clarify how opus works, I try this command:
> >
> > opus_demo -e" audio 8000 1 8000 -cbr
> > /somedirectory/pcm_mono_ochomil.raw /somedirectory/test.opus
>
> opus_demo doesn't support .opus files. It uses a special raw format
just
> for testing. You want opusenc and opusdec from the opus-tools package.
>
>  -r
>
> _______________________________________________
> opus mailing list
> opus at xiph.org
> http://lists.xiph.org/mailman/listinfo/opus
>
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