Source Pixel Aspect Ratio

[dylanreeve]

Hi,

I can't find a way to force or set the pixel aspect ratio for an input. I have a variety of PAL SD files and I can't trust the aspect ratio flags in the files. Some will be correctly 1.066 (PAL 4:3) but others should be processed as 1.42 (PAL 16:9).

I can correctly identify these by eye, and build two workflows for processing them, but I can't find a way in the workflow to force the processors to assume or assign a specific PAR for the source footage, meaning any resizes I apply may not be correct.

Is there an easy way I'm missing somewhere to force this?

[emcodem]

Hi Dylan,

what do you want to do, leave the codec but just override the AR or encode (what format, HD, SD, other)?
If Encode, did you check out the Resizing property of the encoders?
Basically the only problem you have should be when the source is flagged 4x3 but it is anamorphic 16x9, in this case the Stretch option might be what you like?

[dylanreeve]

I think i've figured that I can use the "sar" param in the x264-params to force the encoder to interpret the incoming footage the way I want.

[emcodem]

Hehe yeah there are many ways to get to the goal