HD Quicktime trailers

zozo
Posted:
in General Discussion edited January 2014
OK... whats up with the HD Quicktime trailers?



They say they are available in 720P and 1080P



When I click on the link, I get the option to see only one trailer... at 1280x 544



WTF?



720P is 1280x720

720i is 1280x360



1080i is 1920x540

1080P is 1920x1080



What half-assed resolution is 544????

Comments

  • Reply 1 of 11
    ebbyebby Posts: 3,110member
    Which one specifically?



    Some have that funky resolution, some have 720, some 1080.



    It depends on what you are trying to watch.
  • Reply 2 of 11
    hmurchisonhmurchison Posts: 12,425member
    It's because the 'i' denotes interlacing.



    Thus 720i is 360 half of the interlaced frame

    thus 1080i is 540 half of the interlaced frame.



    It's just a weird way of denoting the resolution.
  • Reply 3 of 11
    ebbyebby Posts: 3,110member
    Oh, I thought you were asking something totally different.
  • Reply 4 of 11
    telomartelomar Posts: 1,804member
    Cinemascope. Wider than 16:9 widescreen so you get a wonky resolution.
  • Reply 5 of 11
    zozo Posts: 3,117member






    You see...



    On the front page it says: 720p and 1080p



    Then the main page says "1280x544"



    WTF is that?
  • Reply 6 of 11
    danielctulldanielctull Posts: 586member
    Quote:

    Originally posted by ZO

    You see...



    On the front page it says: 720p and 1080p



    Then the main page says "1280x544"



    WTF is that?



    Because it is not the 16:9 ration that those denotations were made for, but in fact one of the other ratios of 2.35:1. This being one of the main ratios used in film... If it was made to be 720 high, then it would be wider. My belief is that now we should be getting to the stage where we count width rather than height because a) the width never changes whereas the height does and b) more displays are now in pixels rather than lines.
  • Reply 7 of 11
    zozo Posts: 3,117member
    but then Apple shouldn't/can't say these clips are "720P" or "1080P"



    I'm sorry if this seems petty to people, but I work with this stuff every day and already trying to get friends or clients to understand the differences is hard enough, and then having Apple make up their own sizes just bothers the hell out of me.



    the "definition" of 720p or i and 1080p or i is as I described above...



    anyway...



    Maybe I'm getting my period or something...
  • Reply 8 of 11
    telomartelomar Posts: 1,804member
    Apple isn't making these sizes up they are standard cinema resolutions and commonly used for many DVDs. The last Harry Potter movie springs to mind.



    Would you prefer they added the black bars to take it to 720p?
  • Reply 9 of 11
    zozo Posts: 3,117member
    no... but maybe just a small note disclaiming why they aren't proper pixel size
  • Reply 10 of 11
    mellomello Posts: 555member
    I've got a 17" powerbook 1.67ghz. with 1.5 gigs of ram. Watching the 720p

    movies are pretty smooth (about 20-24 fps). The 1080 movies just bog my

    laptop down to about 6-20 fps. Does anyone have any tips to boost

    that up a bit?
  • Reply 11 of 11
    danielctulldanielctull Posts: 586member
    Quote:

    Originally posted by ZO

    no... but maybe just a small note disclaiming why they aren't proper pixel size



    Well unless nearly every HD movie comes with a disclaimer, I'm suing!!



    It'd be that or crop movies to 16:9 720/1080 i/p, or worse just stretch the image - there would literally be a public outcry!



    Seriously though, if they took 720 and made the width from it (making it 1692 wide at a 2.53:1 ratio), people with 1280x768 displays (me) would complain as they have a device capable of pixel perfect HD playback, but have to scale down to play this 1692x720 movie.
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