[FFmpeg-user] x264: pixel aspect ratio overriden?

Peter B. pb at das-werkstatt.com
Mon Apr 23 11:38:11 CEST 2012

Quoting "Peter B." <pb at das-werkstatt.com>:

> On 04/19/2012 08:22 PM, Boštjan Strojan wrote:
>> option a:
>> add setsar=1:1 to the end of your filter chain, like for example:
>> -vf "scale=1024:576,setsar=1:1"
>> option b:
>> use aspect flag, like -aspect 1.778
> @Boštjan:
> Will try that. Thanks!

It worked!
Using the videofiler "-vf" argument for scaling and SAR works  
perfectly! Thank you very much for that hint.

Here is the commandline I'm now using for rescaling anamorphic 5:4  
back to 16:9 with SAR=1:1:

ffmpeg -i input.mpg -flags +ilme+ildct -vcodec libx264 -deinterlace  
-vf "scale=720:400,setsar=1:1" -acodec libfaac -b 850k -ab 128k  

In case someone would avoid pixel resizing, here's a solution for  
dynamic resizing on the player side, using the "setdar" vf-option:

ffmpeg -i input.mpg -flags +ilme+ildct -vcodec libx264 -deinterlace  
-vf "scale=720:576,setdar=16:9" -acodec libfaac -b 850k -ab 128k  

Thanks again,

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