No, and I don't know much about video. But I have a video file here that VLC tells me is H264 - MPG-4 AVC (avc1). And when I run this:
use AppleScript version "2.3.1"
use scripting additions
use framework "Foundation"
use framework "AVFoundation"
set anNSURL to current application's |NSURL|'s fileURLWithPath:"/path/to/video"
set theAsset to current application's AVURLAsset's URLAssetWithURL:anNSURL options:(missing value)
set theTrack to (theAsset's tracksWithMediaType:(current application's AVMediaTypeVideo))'s objectAtIndex:0
set theFrameRate to theTrack's nominalFrameRate()
set theSize to theTrack's naturalSize()
return {theFrameRate, width of theSize, height of theSize}