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If I'm not mistaken, as a container format, MP4 videos should be able to contain videos that are 480p. Also, from what I am able to find, the MPEG-4 video format does not have a limitation that prevents 480p either.
Yet, MP4 videos on YouTube are only available at 360p, 720p, and 1080p, and 480p is only available as FLV or WebM (regardless of the video).
Am I missing something? At 4:3, a 480p video would need to be 640x480, but at 16:9, it would be 853.333…x480. Could that be the problem? Is there a tangible limitation preventing 480p MP4s?
yes, can be any size with various MP4 codecs. No, limit like that. I cant answer as to what crasy methodology they use at youtube :-) It must have to do with "best at that res" and the software used to play it (flash)? Also might have to do with maintaining compatabilities. – Psycogeek – 2012-02-03T05:32:57.897
@Psycogeek, > yes, can be any size with various MP4 codecs. That’s what I thought, but YouTube’s lack of an SD MP4 really made me wonder. > I cant answer as to what crasy methodology they use at youtube… I don’t see how any of that applies though since different resolutions are available in different formats. – Synetech – 2012-02-03T05:53:48.460
*sigh* (Anonymous) hit-and-run down-voters. :roll: – Synetech – 2012-02-03T06:00:42.130
http://en.wikipedia.org/wiki/YouTube#Uploading < mabey this has something. If it was my site, it would all be in 2formats total, just so when there is a problem it isnt compounded by complexity. – Psycogeek – 2012-02-03T06:07:45.560
The closest thing I can find is a comment about how 640x480 H.264 videos “always look bad on YouTube”. Curious.
– Synetech – 2012-02-03T06:26:38.483