Here's a way to quickly compute - max h264 video resolution for iPod

Question

Here's a VB Script I wrote to quickly compute the maximum dimensions you can encode an h264 video in for playback on your iPod video. It works on the principal that iPods can handle a maximum of 230400 pixels, and also accounts for Videora's stipulation that width/height must be in multiples of 16. Very easy to use, you simply supply the original width and height of your source video, and it tells you what dimensions you should encode to in order to maximize resolution. This is mainly of use for those who wish to playback videos on a TV, as anything above 320x240 won't look any better on the iPod itself. Copy and past this into a text file with the extension ".vbs" and then double click it. Windows only, sorry Mac people.
origx = InputBox("Original Width", "Original Width")
origy = InputBox("Original Height", "Original Height")
xequals = origx / origy
newy = sqr((230000)/xequals)
newx = newy * xequals
newy = 16 * (round((newy/16), 0))
newx = 16 * (round((newx/16), 0))
msgbox ("Make your video: " & newx & " x " & newy & vbcrlf & vbcrlf & "Total pixels: " & (newy*newx))

Answer 1

To do the same thing on a Mac, open the Script Editor in the /Applications/AppleScript folder and paste in the following:
display dialog "What is the original width?" buttons {"Cancel", "Enter"} default button "Enter" default answer ""
set origx to text returned of the result as number
display dialog "What is the original height?" buttons {"Cancel", "Enter"} default button "Enter" default answer ""
set origy to text returned of the result as number
set xequals to origx / origy
set newy to (230000 / xequals) ^ 0.5
set newx to newy * xequals
set newy to 16 * (round (newy / 16))
set newx to 16 * (round (newx / 16))
display dialog ("Make your video: " & newx & " x " & newy & return & return & "Total pixels: " & (newy * newx))
Press the Run button and enter the original size when prompted.
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