DLNA MPEG2 Video Aspect Ratio problem

[sletonqu]

I use a DLNA server (serviio.org) that streams video to my Sony Bravia TV 2010 model (KDL-46EX501).

With some video format, for example "MPEG2 Video, yuv420p, 640x336, PAR 1:1, DAR 40:21", in WIDE mode, the resulting displayed aspect ratio is bad:

- TOP /BOTTOM black bars were added, and

- Some pixels were lost on left and right (not on screen displayed)
- The video is crushed

The Sony renderer may: "Enlarges the picture  horizontally to fill the screen when the original source is 4:3. When  the original source is 16:9 (High-definition source), select this option  to display the 16:9 picture in its original size."

ZOOM mode could be a workarround but not a complete solution:

- The video is not crushed or stretch : OK
- No black bars : OK

- But some pixels were lost on left and right : BAD

For test details, see :http://forum.serviio.org/viewtopic.php?f=11&t=2956

This problem is also known at the PS3 Media Server forum, workarround is to re-encode then expand in DAR 16:9 the video.

So it seems that the WIDE mode feature is not fully mature!!