<div dir="ltr"> <div class="gmail_quote">2008/9/9 Edward Hervey <<a href="mailto:bilboed@gmail.com">bilboed@gmail.com</a>> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div class="Ih2E3d"> > Any plan to support HDYC format in gstreamer ? </div>   If you have elements that support that format... you can already do it now. After all, it's just a matter of creating a caps (like "video/x-raw-yuv,format=(fourcc)HDYC"). </blockquote><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">   The *real* problem is having elements that can convert (properly) from that colourspace/layout to other ones (like the ones used by video sinks or encoders).   I don't know if anybody's planning that, but that wouldn't be the only issue with colourspaces in GStreamer (Anyone heard of chroma placement in subsampled video ?).   It all comes down to having:   * A proper definition of colourspaces in raw video caps   * An element that *properly* does that conversion taking into account the correct conversion coefficients/clamping and chroma placement. Oh, and preferably with readable code (unlike ffmpegcolorspace).</blockquote><div> Ok. I have some basic knowledges but I think I have not the background to make a such gst element (colorspace converter). It requires to know a lot of video formats in order to start good abstractions. And use appropriate libraries (liboil ?) For now I can start to add the HDYC to RGB convertion in the ffmegcolorspace element. (just to not forget this format ...) Is there any thing about HDYC in the ffmpeg libs ?  </div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">     Patches welcome :)       Edward</blockquote><div> Thx Julien   </div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div class="Ih2E3d"> > > (We have a Video Capture Device that delivers HDYC 1920*1080 only) > > Some docs here:  <a href="http://www.fourcc.org/yuv.php#HDYC" target="_blank">http://www.fourcc.org/yuv.php#HDYC</a> > > It seems that the difference bettween UYVY and HDYC is just the > coefficients used in the yuv to rgb conversion. > T470 coefficients in UYVY to rgb conversion (SD likes) and > BT709 coefficients in HDYC to rgb conversion (HD likes) > > Sincerely > > J. I. > </div>> ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's challenge > Build the coolest Linux based applications with Moblin SDK & win great prizes > Grand prize is a trip for two to an Open Source event anywhere in the world > <a href="http://moblin-contest.org/redirect.php?banner_id=100&url=/" target="_blank">http://moblin-contest.org/redirect.php?banner_id=100&url=/</a> > _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.sourceforge.net">gstreamer-devel@lists.sourceforge.net</a> <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel" target="_blank">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a> ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world <a href="http://moblin-contest.org/redirect.php?banner_id=100&url=/" target="_blank">http://moblin-contest.org/redirect.php?banner_id=100&url=/</a> _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.sourceforge.net">gstreamer-devel@lists.sourceforge.net</a> <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel" target="_blank">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a> </blockquote></div> </div>