[gst-devel] YUV to RGB conversion of decoder output

[Edward Hervey]

On Tue, 2010-12-21 at 20:44 +0530, Rohit Atri wrote:
> Hi,
> <Newbie Warning - Question could sound lame>
> I've an application which selectively decodes iFrames in a video
> (mpeg4 only for now) and hence I use ffdec_mpeg4 in the pipeline. The
> output I get is in YUV format and I need to convert it to RGB so I can
> build a QPixmap (Qt image representation class) from it.
> 
> 
> How do I do that?
> 
> 
> I tried - setting the caps as "video/x-raw-rgb" for the src pad of
> decoder but that didn't work. Also I tried putting a capsfilter with
> caps = "video/x-raw-rgb" and followed by a ffmpegcolorspace element
> but that didn't quite work.

  You need to put your capsfilter *after* ffmpegcolorspace (you want it
to output RGB regardless of what it has in input).

    Edward

>  I don't want to set other structures such as width height depth etc
> since that could vary from video to video.
> 
> 
> PS - I could just write my own yuv->rgb routine but want to check if
> this can be done in the pipeline itself.
> 
> 
> Thanks
> Rohit
> ------------------------------------------------------------------------------
> Lotusphere 2011
> Register now for Lotusphere 2011 and learn how
> to connect the dots, take your collaborative environment
> to the next level, and enter the era of Social Business.
> http://p.sf.net/sfu/lotusphere-d2d
> _______________________________________________ gstreamer-devel mailing list gstreamer-devel at lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gstreamer-devel