Interleave a sequence of top/bottom fields

[Nicolas Dufresne]

Le mercredi 04 avril 2018 à 19:17 +0000, Searles, Dan a écrit :
> I’ve having trouble coming up with a pipeline for a v4l2 source that
> produces (at 60 buffers per second) a sequence of alternating
> top/bottom NTSC 240 line fields, that I want to then combine into 480
> line frames, also at 60 per second. Each in coming field should just
> replace its previous data, and emit a new frame.

The ALTERNATE mode of V4L2 is not currently supported by GStreamer.

>  
> I’m using version 1.8.3.

This is very old.

>  
> Is this possible?

Sure, just need someone to add support for that in GstV4l2 (gst-
plugins-good) and GStreamer in general.

Nicolas
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