[gst-devel] how to write a proper atmel plugin?

[Stefan Kost]

Sedji Gaouaou wrote:
> Hi,
>
> I have written a mail few days ago about a display problem using gstreamer.
>
> I still cannot play properly the video when doing:
> gst-launch filesrc location= mnt/video/AVI/MPEG4/Seinfel
> d_timestamp.avi ! avidemux name=demux demux.video_00 ! queue ! x170
> output=RGB16 inbuf-thresh=0000 output_width=480 output_height=240 !
> ximagesink display=:0.0
>
>
> while it is ok when doing:
>
> gst-launch filesrc location= mnt/video/AVI/MPEG4/Seinfel
> d_timestamp.avi ! avidemux name=demux demux.video_00 ! queue ! x170
> output=RGB16 inbuf-thresh=0000 output_width=480 output_height=240 !
> fbdevsink
>   

you need to discuss this with the folks that provide you that x170 element.
>
> Anyway I have another question. My video decoder is also able to 
> crop/scale/rotate/convert colors, and I would like to know what is the 
> best way to use such capabilities within gstreamer?
>   

react to caps changes on your decoders src pad and announce the supprted
variation in you template caps for the src pad.
> Should I write only one plugin which will do everything or several 
> plugins like for instance one for the decoder, one for the post 
> processing(crop, rotation..) and one for the color conversion?
>   
It's nice to have it separated if you want to use it in several places.

Stefan

>
> Regards,
> Sedji
>
>
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