Resizing woes

Sereenie · Post by **Sereenie** » Sun Jan 21, 2007 5:05 pm

I'd take you up on it... except I have never coded anything more complicated than Avisynth scripts and xhtml sites! ^_^;

Hopefully, someone more competent than me can do it...

Still, I want to thank you for creating that tool in the first place: it's probably one of the most useful applications for making videos!

S.

Keeper of Hellfire · Post by **Keeper of Hellfire** » Sun Jan 21, 2007 5:12 pm

trythil wrote:The reason why 848x480 is so popular is because it preserves all 480 vertical lines of a 720x480 image, vs. 768x432, which mashes them together.

While this is true, I prefer 768 x 432 for final encode of 16:9 footage. I did encounter playback problems with footage wider than 768 pixels - the right side of the video that did exceed the 768 pixels was only random colored noise. It may be a rare problem and depend on the combination of player, codec and version of DirectShow. But the fact that it can happen stops me from using wider resolutions.

trythil · Post by **trythil** » Sun Jan 21, 2007 5:28 pm

Keeper of Hellfire wrote:While this is true, I prefer 768 x 432 for final encode of 16:9 footage. I did encounter playback problems with footage wider than 768 pixels - the right side of the video that did exceed the 768 pixels was only random colored noise. It may be a rare problem and depend on the combination of player, codec and version of DirectShow. But the fact that it can happen stops me from using wider resolutions.

Interesting. I haven't seen that, but I'll have to check that out. Seems like it'd be an issue for any HD stuff...

One way to get around that problem with standard-definition footage, though, is to encode at 720x480 and set the sample/pixel aspect ratio flags accordingly.

trythil · Post by **trythil** » Sun Jan 21, 2007 5:29 pm

trythil wrote:
Keeper of Hellfire wrote:While this is true, I prefer 768 x 432 for final encode of 16:9 footage. I did encounter playback problems with footage wider than 768 pixels - the right side of the video that did exceed the 768 pixels was only random colored noise. It may be a rare problem and depend on the combination of player, codec and version of DirectShow. But the fact that it can happen stops me from using wider resolutions.
Interesting. I haven't seen that, but I'll have to check that out. Seems like it'd be an issue for any HD stuff...

One way to get around that problem with standard-definition footage, though, is to encode at 720x480 and set the sample/pixel aspect ratio flags accordingly.

Well, it might be. If the issue is in the resizer that won't really help at all.