What is the gstreamer caps syntax?

gstreamer
joeforker picture joeforker · Mar 4, 2010 · Viewed 23.8k times · Source

What is the syntax for caps, specifying media capabilities, in gstreamer? Caps are strings that specify the type of media allowed and look like "audio/x-raw-int,..." but I haven't been able to find good documentation on exactly what is allowed in a caps string.

Answer

daf picture daf · Nov 11, 2011

The syntax is:

<type>[,<property>=<value>]...

Note that the type is not a MIME type, however much it may look like one.

You can find out which caps properties elements support by using gst-inspect. It will proviide "pad templates" for the element's pads, which will specify the ranges of caps supported.

The GStreamer plugin writer's guide also contains a list of defined types which describes properties for common audio, video and image formats.

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