>>    INFO: [mpeg2enc] Aspect ratio code: 1 = 1:1 pixels
 >
 >      Oops - but I think I know what caused that problem...
 ...
 >      It's probably necessary to specify the output SAR (-O sar=) before
 >      you give the size (-O size).  That's so that y4mscaler knows
 >      what output sample aspect to use when doing the scaling.

(Actually, the problem was the "-a 1" given to mpeg2enc, which 
 overrode the SAR tag output by y4mscaler.)

 >-->>  The other thing that you probably should add is a "-O infer=exact".
 >      For example when scaling one 16/9 picture (1920x1080 1:1) to another
 >      (704x480 40:33) with the default "-O infer=simplify" I get:
 ...
 >      Note how the active region was cropped to '1877x1056'.  The aspect
 >      will be correct but the results weren't the anticipated ones.

Heh... I need to take a fresh look at the "simplify" heuristics;
 it's not doing the intended 'automagic' perfect behavior in this
 case.

-matt m.


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