[Softdevice-devel] Image scaling vs. visible resolution

[Nicolas Huillard]

Loosely related to aspect ratio handling.

On a 352x288 stream, scaled to full 800x600 DirectFB screen, the stream 
pixels appear clearly.
With other decoders, like vdr-xine / hardware decoding, the image is 
smoothed, as if it really were 800x600.
That's clearly visible on very small letters (5 pixel) : with 
softdevice, they're awful, with vdr-xine, they're really nice.

The test channel : Météo 
Express;OpenMux:10911:vC34:S13.0E:27500:5820:5830:0:0:5800:176:12000:0

My explanation : softdevice does scaling after decompression, whereas 
xine does scaling before decompression (one step or another in the 
decompression process).

Not that this channel is important to me, but every improvement in image 
quality is a good thing (particularly if it's easy to implement).

-- 
NH