gst-plugins-good: avidemux: Always set pixel-aspect-ratio on raw video streams

[Tim-Philipp Müller]

On Mon, 2014-03-31 at 10:01 -0700, Thibault Saunier wrote:

> avidemux: Always set pixel-aspect-ratio on raw video streams
> 
> That field is mandatory in caps and if it is not present in the
> AVI container, it means square pixels thus 1/1.

Just for the record: this field should be optional, and 1/1 should be
assumed as default if it is not present.

http://cgit.freedesktop.org/gstreamer/gst-plugins-base/tree/docs/design/part-mediatype-video-raw.txt#n55

Cheers
 -Tim