[gst-devel] Writing audio to a file

Stefan Kost ensonic at hora-obscura.de
Fri Jan 25 20:28:01 CET 2008


Hi jeffrey,

Jeffrey Barish schrieb:
> Michael Smith wrote:
> 
>> On Thu, 2008-01-24 at 13:49 -0700, Jeffrey Barish wrote:
>>> I am not able to write audio to a file (that can be played).  I have
>>> tried
>>>
>>> audiotestsrc ! audioconvert ! vorbisenc ! filesink location=test.ogg
>>>
>> This is dumping raw vorbis packets to a file. Raw vorbis packets don't
>> make any sense; they're not decodable.
>>
>> You need to mux it into a container format (usually ogg); oggmux does
>> that.
>>
>> So you can use: audiotestsrc ! audioconvert ! vorbisenc ! oggmux !
>> filesink
>>
>> Mike
> 
> Thanks!  
> 
> I'm not sure how a novice is supposed to figure out something like this,

gst-launch is not really a user tool.

> especially considering that GStreamer Base Plugins 0.10 Plugins Reference
> Manual doesn't even mention oggmux (although it does mention oggdemux). 

I'll add it after the code-freeze (in two days).

> The next thing I wanted to do was to rip a track other than 1 using
> cdparanoiasrc.  It seems that cdparanoiasrc has a property "track", but I
> can't find documentation on it either. 
Its inheritted from GstCddaBaseSrc, there you find the docs for the track property.

> Other than the documentation, I think that GStreamer is pretty nice.

Reporting docs bugs as you did will make it better :)

Stefan




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