[gst-devel] adding tee to alsasink causing problems

[James Pearson]

Thanks for the help. It turns out that the problem was actually  
related to older sound card drivers in ubuntu. I also use gentoo and  
with its newer drivers there is not this problem. I switched to oss  
sink and problems in ubuntu went away. Some times with linux it pays  
to have older more ripe hardware. Thanks for you input.

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




On Sep 29, 2009, at 5:55 AM, Rohan wrote:

> Hi James,
>
> I am no expert but could you put the actual gst-launch commands you
> are using, because it is not clear here where you use the tee twice,
> for either.
>
> I have been meddling with splitting audio/video but instead of for
> saving to file, sending an image to the sender, as well as to another
> receiving computer.
>
> I am guessing this might give you what you want.  You do not seem to
> be naming the tee, and calling it again.
>
> gst-launch-0.10 v4l2src ! tee name=tee ! tee. ! queue ! \
> video/x-raw-yuv,width=320,height=240 ! ffmpegcolorspace !  
> ffenc_flv ! \
> ffmux_flv ! filesink location=/path/to/file tee. ! queue ! xvimagesink
>
> I have not tried the same with the sound, but that should get your
> video recording and displaying (nota bene: not tested, just an off the
> top of my head guess)
>
> For the sound the use of the tee should do the business.  I have not
> messed with mux(es) yet, so I could have gone wrong there, but the tee
> stuff should probably resemble the above.  You name the tee, and then
> refer to it later in the commandline by name.
>
> Hope this helps,
>
> Rohan
>
> James Pearson wrote:
>> So here is my pipeline. The point is to record audio and video and
>> display it at the same time.
>>
>> v4l2src -> tee -> video/x-raw-yuv,width=320,height=240 ->
>> ffmpegcolorspace -> ffenc_flv -> ffmux_flv -> filesink
>>                           -> xvimagesink
>>
>> alsasrc -> tee > audioresample -> audio-x-raw-int,rate=44100 - ->
>> audioconvert -> lame -> ffmux_flv (same mux as above)
>>                           -> alsasink
>>
>> I have been using this pipeline minus the tee for live playback
>> (alsasink,xvimagesink) for some time and it is working well. The  
>> video
>> part, even with the live display works ok but when i add in the tee
>> and alsasink the pipeline gets stuck with nothing going to disk and
>> the video displayed is stuck. Even just adding the alsasink to the
>> pipeline without connecting it causes this result. Any suggestions? I
>> already tried adding queues to almost everything.
>>
>> Thanks
>>
>> -James-
>>
>>
>>
>>
>>
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