Thanks Kris for the information.<br><br><div class="gmail_quote">On Thu, Nov 1, 2012 at 7:29 AM, Krzysztof Konopko <span dir="ltr"><<a href="mailto:krzysztof.konopko@youview.com" target="_blank">krzysztof.konopko@youview.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Please note though that "ffmpegcolorspace was removed and replaced with<br>
videoconvert." in GStreamer-1.0.<br>
<br>
See<br>
<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/manual/html/chapter-porting-1.0.html" target="_blank">http://gstreamer.freedesktop.org/data/doc/gstreamer/head/manual/html/chapter-porting-1.0.html</a><br>
for more details if you intend to use 1.0.<br>
<br>
Kris<br>
<div class="im"><br>
On 31/10/12 20:14, Praveen Adi wrote:<br>
> Hi Tim,<br>
><br>
> Thanks for the detailed answer.<br>
> It really helped me in getting a better picture.<br>
><br>
> Regards,<br>
> Praveen<br>
><br>
> On Wed, Oct 31, 2012 at 7:27 PM, Tim-Philipp Müller <<a href="mailto:t.i.m@zen.co.uk">t.i.m@zen.co.uk</a><br>
</div><div><div class="h5">> <mailto:<a href="mailto:t.i.m@zen.co.uk">t.i.m@zen.co.uk</a>>> wrote:<br>
><br>
> On Wed, 2012-10-31 at 18:17 +0900, Praveen Adi wrote:<br>
><br>
> Hi,<br>
><br>
> > Can some please explain me the following:<br>
> ><br>
> > In the pipeline,<br>
> ><br>
> > gst-launch videotestsrc ! ffmpegcolorspace ! ximagesink<br>
> ><br>
> > What cololorspace does videotestsrc produce here?<br>
><br>
> It will query ffmpegcolorspace for what it supports, which in turn will<br>
> query ximagesink for what it supports (so that what ximagesink supports<br>
> can be prefered).<br>
><br>
> It will likely produce whatever colorspace/pixel layout ximagesink<br>
> returns first in the caps it returns from its get_caps() function.<br>
><br>
> > What colorspace conversion is ffmpegcolorspace doing?<br>
><br>
> If videotestsrc can produce every format ximagesink could possibly<br>
> support, then no conversion will be done. ffmpegcolorspace will operate<br>
> in passthrough mode.<br>
><br>
> > What colorspace is ximagesink accepting and where is it presenting,<br>
> > Framebuffer??<br>
><br>
> It depends on the driver/card. It will be determined at runtime what<br>
> formats are supported. It's likely going to be some RGB format.<br>
><br>
> You can see the caps negotiated if you pass -v to gst-launch.<br>
><br>
> > Here we don't mention any properties for the plugin, but still how do<br>
> > they co-work?<br>
><br>
> Not sure I understand the question, could you rephrase it?<br>
><br>
> Cheers<br>
> -Tim<br>
><br>
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