[x264-devel] About --sar option

[BugMaster]

On Sun, 6 Mar 2011 15:39:33 +0100, Davide Bergamini wrote:
> Hi, thanks for your work!
> I have a couple of question/suggestion about the --sar option.
> I think the real meaning of this option is not sar (storage aspect
> ratio), but its par (pixel aspect ratio)
> and it should be renamed "--input-par". (like --input-res)
> Example: a pal dvd mpeg2 widescreen
> sar = 5:4 (its the pixel resolution ratio 720/576)
> dar = 16:9 (its the output ratio)
> par = 64:45 (its the single pixel width/height ratio)
>  
>  

Hi. SAR acronym is not for storage aspect ratio, but for sample aspect
ratio. And yes sample aspect ratio has almost the same meaning as
pixel aspect ratio, but we use sample aspect ratio because this is the
name used in official H.264 specs.