[gst-devel] gst buffer to image

[Gabriel Duarte]

How!

On Sun, Dec 6, 2009 at 6:02 AM, Mailing List SVR <lists at svrinformatica.it>wrote:

> I solved myself pushing the frame to a second pipeline,
>
> thanks
> Nicola
>
> In data sabato 5 dicembre 2009 23:27:59, Mailing List SVR ha scritto:
> : > In data sabato 5 dicembre 2009 19:39:31, Mailing List SVR ha scritto:
> > : > Hi all,
> > >
> > > I'm using a simple playbin pipeline, I can get the last frame with
> > >  something like this:
> > >
> > > In [124]: frame=player.get_property("frame")
> > >
> > > In [125]: frame
> > > Out[125]: <gst.Buffer 0x1fed6f0 of size 115200 and data 0x49484445>
> >
> > additionally:
> >
> > In [34]: frame.get_caps().to_string()
> > Out[34]: 'video/x-raw-yuv, width=(int)320, height=(int)240,
> > framerate=(fraction)10/1, format=(fourcc)I420, interlaced=(boolean)false,
> > pixel-aspect-ratio=(fraction)1/1'
> >
> > I tried this pipeline:
> >
> > gst-launch-0.10 -v filesrc location=/tmp/frame  ! "video/x-raw-yuv,
> > width=(int)320, height=(int)240, framerate=(fraction)10/1,
> > format=(fourcc)I420, interlaced=(boolean)false, pixel-aspect-
> > ratio=(fraction)1/1"  ! jpegenc ! filesink location=test.jpg
> >
> > but the jpg generated is bad (attacched). I attacch also the saved
> >  frame.data
> >
> > > now I can access frame.data that would be the raw frame data, but how
> to
> > > convert this frame to a jpg or png image? I tried to save the frame to
> a
> > >  file and to convert with jpegenc and pngenc with no success, any
> > >  suggestions?
> > >
> > > thanks
> > > Nicola
> > >
> > >
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>
>
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-- 
Gabriel Duarte
Linux User #471185
Rio de Janeiro - RJ
http://kinuxlinux.org/gabriel_duarte

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