On Wednesday 03 May 2006 11:38, Nicolas Huillard wrote:
vdr@daliman.de a écrit :
Why Softdevice don´t use the transmitted AspectRatio instead?
The URL provided shows that one must use AR (usually fixed, per channel or bouquet) and AFD (changing with programme) and display aspect (user-defined and fixed). All that make a working system... If one is missing, the whole automatic handling crashes and the user have to enter the dance (cropmode). I didn't ever see a setup where the user can rely on everything. I hope you're luckier in Germany...
In the UK, the BBC transmit everything as widescreen, adding black bars to the sides for 4:3 transmissions. This works fine for a 16:9 TV but the AFD is required for proper display on a 4:3 TV, i.e. the decoder is told to zoom to the actual picture. There are also AFDs which do combined cropping and zooming for certain aspect ratios, etc.
Cheers,
Laz