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Confidence Monitoring Using Appsink

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Kristofor Amundson

Confidence Monitoring Using Appsink

Hi all,

I am working on a project that using GStreamer to capture from various sources and save them to files to later be processed. Right now I am interested in developing a way of confidence monitoring for these pipelines, so while the video/audio is being captured people will be able to observe certain features that will assure them a capture is properly happening. For example, to monitor a video being captured I will like to push an image from the video every 30 seconds from the pipeline to the web. And for audio, monitoring volume of input or something similar would be useful I think. Right now I am thinking of using the appsink element to accomplish this. Are there any suggestions or advice that people can offer to help me get started with this?

Thank you.

Kristofor

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Stefan Sauer

Re: Confidence Monitoring Using Appsink

Am 01.03.2010 23:11, schrieb Kristofor Amundson:

> Hi all,
>
> I am working on a project that using GStreamer to capture from various
> sources and save them to files to later be processed. Right now I am
> interested in developing a way of confidence monitoring for these
> pipelines, so while the video/audio is being captured people will be
> able to observe certain features that will assure them a capture is
> properly happening. For example, to monitor a video being captured I
> will like to push an image from the video every 30 seconds from the
> pipeline to the web. And for audio, monitoring volume of input or
> something similar would be useful I think. Right now I am thinking of
> using the appsink element to accomplish this. Are there any suggestions
> or advice that people can offer to help me get started with this?

For volume, I would stick a lvele eleemnt and listen for the level messages on
the GstBus. For video I would use a tee and put queue ! videorate ! xvimagesink
to the preview-branch (videorate if you want a low fps preview). Depedning you
you needs you might need to scale or colorspace convert the video as well.

Stefan

>
> Thank you.
>
> Kristofor
>
>
>
> ------------------------------------------------------------------------------
> Download Intel® Parallel Studio Eval
> Try the new software tools for yourself. Speed compiling, find bugs
> proactively, and fine-tune applications for parallel performance.
> See why Intel Parallel Studio got high marks during beta.
> http://p.sf.net/sfu/intel-sw-dev
>
>
>
> _______________________________________________
> gstreamer-devel mailing list
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> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel