[gst-devel] alsasrc device=hw:1 pipeline problems

[James Pearson]

Thanks for your suggestion. I did try the pipeline you suggested and  
it had no error. So then i tried the pipeline you suggested but  
replaced fakesink with filesink and it wrote an mp3 file that plays  
correctly. True i probably dont need that many queues but it still  
does not work without them. Any other suggestions?

-James Pearson-
startoftext at gmail.com
214-538-8929




On Sep 16, 2009, at 3:45 AM, Stefan Kost wrote:

> startoftext schrieb:
>> Can any one here tell me why this pipeline does not work?
>>
>> gst-launch-0.10 v4l2src ! queue ! ffmpegcolorspace ! ffenc_flv !  
>> queue !
>> ffmux_flv name=mux alsasrc device=hw:1 ! queue ! audioconvert !  
>> lame ! queue
>> !  mux. mux. ! filesink location=vid.flv
>>
>> Here is the output i get from above:
>> Setting pipeline to PAUSED ...
>> Pipeline is live and does not need PREROLL ...
>> Setting pipeline to PLAYING ...
>> New clock: GstAudioSrcClock
>> ERROR: from element /GstPipeline:pipeline0/GstAlsaSrc:alsasrc0:  
>> Internal
>> data flow error.
>> Additional debug info:
>> gstbasesrc.c(2334): gst_base_src_loop ():
>> /GstPipeline:pipeline0/GstAlsaSrc:alsasrc0:
>> streaming task paused, reason not-negotiated (-4)
>> Execution ended after 37319285 ns.
>> Setting pipeline to PAUSED ...
>> Setting pipeline to READY ...
>> Setting pipeline to NULL ...
>> Freeing pipeline ...
>>
>>
>> Funny thing is that if i change the device from hw:1 to hw:0 it  
>> works. Also
>> this pipeline below DOES work.
>>
>> gst-launch-0.10 v4l2src ! queue ! xvimagesink . alsasrc device=hw:1 !
>> alsasink
>>
> what you need to get working is
>
> alsasrc device=hw:1 ! queue ! audioconvert ! lame ! fakesink
>
> I suspect sampling rates, so please try
>
>
> alsasrc device=hw:1 ! queue ! audioresample ! audioconvert ! lame !  
> fakesink
>
> Also consider to use less queues. Does that work?
>
> gst-launch-0.10 v4l2src ! ffmpegcolorspace ! ffenc_flv ! queue !
> ffmux_flv name=mux alsasrc device=hw:1 ! audioresample !  
> audioconvert ! lame ! queue
> !  mux. mux. ! filesink location=vid.flv
>
> Stefan
>
>> Any one have any ideas?
>>
>
>
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