[gst-devel] Setting pad properties at commandline

Sameer Naik sameer at damagehead.com
Mon Oct 15 14:10:09 CEST 2007


hi,

im writing a n-1 element, and am using the videomixer plugin (from
gst-plugins-good package) to get the plug-in architecture in place.

in the videomixer plugin, i see that the gstpad object is overloaded and
a new videomixerpad object is created to store information information
about each input pad.
the videomixerpad class has the following properties installed on it:
alpha, xpos, ypos,...
but if i run the following pipeline:

gst-launch videotestsrc ! video/x-raw-yuv, xpos=320, ypos=240,
alpha=0.1 ! ffmpegcolorspace ! xvimagesink

no change appears at the displayed output, or to the properties of the
pad.

is it that the pad properties cannot be set in the above manner. if so,
is there a way to set the pad properties at the command line level.

regards
~sameer





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