gstreamer meta data support

[Sebastian Dröge]

On Fr, 2014-10-24 at 14:49 -0700, Hongkai wrote:
> Hi,
>  
> Under GStreamer framework, what should be the best practice, if I want to
> add some user-defined meta data to per video frame-by-frame data buffer, so
> that meta data can travel along the pipeline together with the actual video
> frame data, so that downstream element(s) can process it?

See GstMeta, which is a new feature in GStreamer 1.x. It's exactly for
this kind of use cases:
http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMeta.html

You can also find some more information about possible uses here on my
blog:
https://coaxion.net/blog/2013/10/the-never-ending-story-gstreamer-and-hardware-integration/

-- 
Sebastian Dröge, Centricular Ltd · http://www.centricular.com
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