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  1. Member Cornucopia's Avatar
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    Oct 2001
    Deep in the Heart of Texas
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    Originally Posted by jagabo View Post
    Originally Posted by Cornucopia View Post
    @manono, you were talking about MPEG1/VCD looking like crap. Well, I believe it has less to do with MPEG1 than it has to do with bad encoding & bitrate starvation.
    Of course it's about insufficient bitrate. MPEG family encoders all use the same basic techniques (DCT, motion vectors) to compress video and all deliver close to the same quality given enough bitrate.

    Originally Posted by Cornucopia View Post
    My example is a quad split between MPEG1, MPEG2, MPEG4-ASP (aka Xvid) and MPEG4-AVC/h.264. All took the opensource clip "Sintel" and downrezzed it to 352x240 but kept at exactly the original 24fps,
    NTSC VCD will always be 29.97 fps. So with film sources you usually have jerky motion with a duplicate every 5th frame. Or even worse, two blended frames out of every size from simply downscaling interlaced 3:2 pulldown video.

    Your example uses noiseless animated material with a 2.35:1 movie letterboxed in the 4:3 DAR frame. Both those things require a lot less bitrate than your usual 4:3 source. That's not representative of your average VCD.
    Good points.

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