[gst-devel] video clocking

ved kpl ved.kpl at gmail.com
Mon Oct 12 18:18:29 CEST 2009


Since your plugin is video src, You can set the appropriate latency,
for capturing the video frames. and put a queue after the source.

You can have a look at v4l2src code for the latency query.

On Mon, Oct 12, 2009 at 8:53 PM, Thomas Andrews <tandrews at grok.co.za> wrote:
> Hi,
> I'm looking for an example of how to correctly implement a clock source.
> I have written a basic plugin for a camera, and I'm able to display a
> frame from it, but what I (believe) I need to do is to make my plugin
> supply the clock for the rest of the system.
> My existing implementation evidently takes too long to supply a frame,
> so even though I supply images, the screen does not change to reflect
> the latest frame delivered. Only the first frame is displayed. (If I
> just update the pixels manually and quickly return the frame, then the
> new frame becomes visible, so I am assuming that it is the delay
> introduced that is the problem.)
> Can anyone point me to an example of how to make my plugin act as a
> clock source?
> Many thanks,
> Thomas
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