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Another RTE F*ck Up

  • 02-07-2004 10:00pm
    #1
    DMT
    Closed Accounts Posts: 1,669 ✭✭✭


    It looks like RTE have got the interlace field order the wrong way around on "Coulter and Company" - the movement looks jittery in exactly the way as would if you encoded a DVD from a DV source with the incorrect field order.

    I've also noticed this with "Home and Away" - this might be explained if the field order for PAL B/H is different to PAL I....


Comments

  • #2
    The Real B-man
    Moderators, Society & Culture Moderators Posts: 3,731 Mod ✭✭✭✭The Real B-man


    might as well be talking chinese :rolleyes: but i get the jist of it:


  • #3
    DMT
    Closed Accounts Posts: 1,669 ✭✭✭DMT


    Originally posted by The Real B-man
    might as well be talking chinese :rolleyes: but i get the jist of it:
    DV is essentially 50 frames per second (25fps with two different fields for each frame), pairs of adjoining "frames" (fields) are interlaced together to make one frame. When the frame is shown on the tv, one field is drawn on the screen then the other. If the field order is wrong, you effectively take two step forwards and one back.

    To visualise (using letters to represent fields grouped in pairs/frames), instead of:
    AB CD EF GH IJ

    you have:
    BA DC FE HG JI

    So while the overall motion is forward, it results in jittery movement...


  • #4
    Quatre Mains
    Registered Users Posts: 622 ✭✭✭Quatre Mains


    the real question is WTF were you doing watching that muck in the 1st place? Are you one of those people that appear in the audience in the Lyrics Board?


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