[gst-devel] how to attach camera that has no plugin

[Olivier Aubert]

In your case, another option to investigate, which would remove the
2-process constraint, would be to use the python ctypes module (standard
in python >= 2.5) to call the proprietary library from python, and then
inject the data through an appsrc element written in python.

Regards,
Olivier Aubert

On Fri, 2010-08-27 at 11:28 -0500, Bert Douglas wrote:
> 
> 
> On Fri, Aug 27, 2010 at 11:04 AM, Sandeep Prakash <123sandy at gmail.com>
> wrote:
>         
>         Hi Bert,
>         
>         
>         Bert Douglas wrote:
>         >
>         > How does one application reference an instance of an element
>         that is in a
>         > completely different process?
>         >
>         
>         Why should the camera library loaded in a different process.
>         As I had
>         replied to your other post
>         use appsrc and in the "need-data" callback feed your frames
>         from the camera
>         APIs.
> 
> I already have a python app that works with video4linux.
> Now I want to hook up a different camera.  It comes with a library
> from the manufacturer.
> But nothing related to gstreamer.
> 
> I am thinking I should start with existing plugin for camera source.
> Perhaps video4linux, and modify source code to talk to other camera.
> This way I can instantiate the new element into my python app without
> any problem.
> 
> How about videotestsrc, would that be good to use as a model?
> 
> 
>  
> 
>         
>         Also, using appsrc for live/camera captures might end in
>         undesirable
>         results. Better is to write
>         plugin that inherits from the GstPushSrc. Here you will have
>         more control
>         over framerate, etc.,
>         that is important in live circumstances.
>         
>         Regards,
>         Sandeep
>         http://sandeepprakash.homeip.net
>         --
>         
>         View this message in context:
>         http://gstreamer-devel.966125.n4.nabble.com/how-to-attach-camera-that-has-no-plugin-tp2340987p2341320.html
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>         Nabble.com.
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