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Activity Forums Adobe Premiere Pro h.264 exports blocky on fades up/down

  • h.264 exports blocky on fades up/down

    Posted by Chris Borjis on January 4, 2013 at 11:00 pm

    I’ve searched and not found an exact fix to this:

    poor looking macroblocking of a pristine image on a fade up or fade down.
    sometimes on cross fades.

    using a bitrate of 5,000kbps should be plenty.

    I’m now using Handbrake of all apps, to get clean files for my client.
    Ridiculous I should have to take that step.

    Is there a fix or workaround anyone knows of?

    running CS 6.01 MAC

    Chris Borjis replied 13 years, 6 months ago 4 Members · 7 Replies
  • 7 Replies
  • Victor Perez

    January 4, 2013 at 11:14 pm

    Just an idea, are you exporting using preview renders or is the render at full resolution checked on your export window. Those pesky low renders got me a couple of times. They are useful but they’ll get you at the end.

    Victor
    editvictor.com
    http://www.hbhm.tv
    http://www.itvisus.com

  • Angelo Lorenzo

    January 4, 2013 at 11:26 pm

    What is your keyframe distance? Single or double pass?

    ——————–
    Angelo Lorenzo

    Need to encode ProRes on your Windows PC?
    Introducing ProRes Helper, an awesome little app that makes it possible
    Fallen Empire Digital Production Services – Los Angeles
    RED transcoding, on-set DIT, and RED Epic rental services
    Fallen Empire – The Blog
    A blog dedicated to filmmaking, the RED workflow, and DIT tips and tricks

  • Chris Borjis

    January 4, 2013 at 11:45 pm

    use previews unchecked, highest quality checked.

    also set the bar for 100 quality.

    keyframes: 72

    I’m using AME exporting quicktime with h.264 and the options button
    is grayed out so its likely defaulting to single pass.

  • Angelo Lorenzo

    January 5, 2013 at 12:13 am

    When Premiere uses the Quicktime container, it uses the Quicktime h.264 codec. When Premiere uses mp4 as the container, it uses a different h.264 codec.

    I would suggest using the mp4/h264 option to encode. Both single pass CBR and 2 pass VBR give far better results in terms of macroblocking over Quicktime’s encoder. I even spread the keyframes further to every 90 frames.

    It’s a pretty simple step to re-wrap mp4 to MOV using many tools out there, my personal fave being FFMPEG.

    Premiere def isn’t as robust when it comes to encoding options as anyone would like it to be, but there h.264 encoder isn’t bad.

    ——————–
    Angelo Lorenzo

    Need to encode ProRes on your Windows PC?
    Introducing ProRes Helper, an awesome little app that makes it possible
    Fallen Empire Digital Production Services – Los Angeles
    RED transcoding, on-set DIT, and RED Epic rental services
    Fallen Empire – The Blog
    A blog dedicated to filmmaking, the RED workflow, and DIT tips and tricks

  • Chris Borjis

    January 5, 2013 at 12:27 am

    how do you access the non-quicktime mp4 you speak of?

  • John-michael Seng-wheeler

    January 5, 2013 at 3:12 am

    In the format drop-down, instead of Quicktime select H.264.

  • Chris Borjis

    January 7, 2013 at 8:33 pm

    Thanks that worked!

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