[gst-devel] Scheduling Problem

[pritesh kumar]

hi ,
i cant predict the exact reason, but according to me the pipeline u r trying
to implement is not correct approach.

the pull elements should be most upstream , otherwise u have to handle the
pad activation functions properly.  activate_push () , activate_pull().


Alternatively,

the pipeline can be alsasrc  !  pushreader ! alsasink

where the pushreader is  a push element .

whereas in push reader u can have async data queue , which will receive data
from alsasrc and on a separate thread push data to alsasink.


let the push reader be a completey push element.

or may be this approach alsasrc ! push reader ! queue ! alsasink


regards
antwan rockamora







On Tue, Jul 28, 2009 at 12:59 PM, raju03e <raju01e at gmail.com> wrote:

>
> Hi,
>
> I am a newbee to gstreamer. I am trying to explore about push and pull
> based
> scheduling in gstreamer.
>
> I wrote pushreader, pullreader plugins.
>
> In pushreader - sink pad is exposed with chain function, src pad with
> set_getrange function. In chain function whatever data got from alsasrc, I
> stored that buffer into plugin internal buffer. Getrange function is using
> this internal buffer.
>
> In pullreader – sink pad is exposed with getrange function, it tries to get
> data from pushreader and push that data to alsasink.
>
> Pipeline is alsasrc ! pushreader ! pullreader ! Alsasink
>
> When I tried to execute the above pipeline, only getrange is scheduling,
> Chain function is not scheduling.
>
> Please help me to solve this problem.
>
> Thanks
> Nagaraju K
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>
>
>
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