[gst-devel] gstreamer freebox multiroom

[Jan Schmidt]

<quote who="Julien Isorce">

>    Hi,
> 
>    Ok I did what you recommended: add a videoscale between ffmpegcolorspace
>    and ximagesink.
>    I did not get error this time, but the pipeline was blocked I think. So as
>    usual, I thought the problem was about synchronisation.
>    I tried several possibilities and I finally found one that works:
> 
>    gst-launch-0.10 rtspsrc
>    location="rtsp://mafreebox.freebox.fr/freeboxtv/201" ! rtpmp2tdepay !
>    flutsdemux name=d d. ! mpeg2dec ! queue ! ffmpegcolorspace ! videoscale !
>    ximagesink d. ! mad ! queue ! alsasink
> 
>    So thx for the idea of "videoscale".
>    Do you know why this element is needed ?

It's needed to match the pixel aspect ratio of the video (usually non-square
pixels) to the display device (usually a computer monitor with square
pixels). Using xvimagesink allows scaling in the X server and then
videoscale usually isn't needed. It never does any harm to include it
regardless - it will negotiate to passthrough and do no work if possible.

J.

> 
>    I will now try to experiment the netsim element from farsight plugin.
>    Any advise about this element would be appreciated.
>    Sincerely
> 
>    Julien I.
>    2008/4/9, Zaheer Merali <zaheermerali at gmail.com>:
> 
>      On Tue, Apr 8, 2008 at 11:29 PM, Julien Isorce <julien.isorce at gmail.com>
>      wrote:
>      > Hi,
>      >
>      > The following pipeline works fine:(sound + video)
>      > gst-launch-0.10 playbin
>      uri="rtsp://mafreebox.freebox.fr/freeboxtv/201"
>      >
>      >
>      > I tried with -v option to have informations of the pipeline made then
>      I
>      > tried:
>      >
>      > gst-launch-0.10 rtspsrc
>      location="rtsp://mafreebox.freebox.fr/freeboxtv/201"
>      > ! rtpmp2tdepay ! flutsdemux name=d d. ! queue ! mpeg2dec !
>      ffmpegcolorspace
>      > ! ximagesink d. ! mad ! alsasink
>      >
> 
>      Try adding a videoscale between ffmpegcolorspace and ximagesink.
> 
>      Zaheer
> 
>      > but it is not working, log :
>      >
>      > "
>      > ERREUR: de l'element /pipeline0/rtspsrc0/udpsrc0 : Erreur de donnees
>      de flux
>      > interne.
>      > ...
>      >  streaming task paused, reason not-negociated (-4)
>      > ...
>      > ""
>      >
>      > Where am I wrong in the command line ?
>      >
>      >
>      > Then I want to use the netsim element from farsight plugin. Do I have
>      to
>      > insert it between rtspsrc and rtpmp2tdepay ?
>      >
>      > Thx
>      >
>      >
>      >
> 
>      >
>      -------------------------------------------------------------------------
>      >  This SF.net email is sponsored by the 2008 JavaOne(SM) Conference
>      >  Register now and save $200. Hurry, offer ends at 11:59 p.m.,
>      >  Monday, April 7! Use priority code J8TLD2.
>      >
>      >
>      http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone
>      > _______________________________________________
>      >  gstreamer-devel mailing list
>      >  gstreamer-devel at lists.sourceforge.net
>      >  https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>      >
>      >

> -------------------------------------------------------------------------
> This SF.net email is sponsored by the 2008 JavaOne(SM) Conference 
> Don't miss this year's exciting event. There's still time to save $100. 
> Use priority code J8TL2D2. 
> http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel


-- 
Jan Schmidt                                  thaytan at mad.scientist.com

The woman you buy -- and she is the least expensive -- takes a great deal of money. The woman who gives herself takes all your time. - Balzac