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Inspiring
December 14, 2018
Question

Why does Pr have such a hard time playing Long-GOP?

  • December 14, 2018
  • 5 replies
  • 5477 views

This problem has gone back several versions.  Pr works fine with intraframe and MPEG-2 footage, but drops frames like crazy or won't even play 4K AVCHD, DJI, and other Long-GOP footage WITHOUT ANY EFFECTS OR SCALING applied, even at 1/4 or 1/8 resolution that plays smoothly in VLC and QT player outside of Premiere.


And this is intermittent.  Some times it plays, some times it doesn't.  When it doesn't, quitting and relaunching helps for a while, but it inevitably stops playing again. 

I've been deleting my prefs several times a day, which also helps briefly, but that may be because quitting and relaunching is required to do that.

I have to render most of this type of footage to get it to play reliably.  Time killer.

I'm not maxing out my 2GB/s RAID, 6-core (12 thread) 3.06 GHz CPU or Titan GPU and 128GB RAM.  Not even close.  I have iStat Menus installed, and can monitor my system resources in real-time by looking at my menu bar.

This certainly suggests the problem is in the way Pr is built.  But, if I'm wrong and there's a fix for this, I'd be grateful to learn how.

System described above is on a MacPro5,1 running 10.13.6 with latest GPU and CUDA drivers installed.

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    5 replies

    Inspiring
    December 17, 2018

    https://forums.adobe.com/people/Jim+Curtis  wrote

    This problem has gone back several versions.

    This is the key phrase. The point here is not that it has trouble, and the answer is not workarounds. the point is that it used to work better. 

    I used to joke that microsoft software techs needed to have this posted up around their offices:

    "If you're going to change something, make it better"

    I think of this everytime I search for a file and every OS since XP fails to highlight the found file, or when navigating that abomination of a UI, the ribbbon.  Currently I'm trying to re-learn 20 years of muscle memory transforming things in photoshop, and then finding the new modifiers dont tally with indesign, anyway or apparently premiere... And learning to love transcoding every DJI shoot before I can edit. 

    ANyone remember the southpark movie "I thought you said CC2019 was better..."

    Inspiring
    December 17, 2018

    getho  wrote

    .. And learning to love transcoding every DJI shoot before I can edit. 

    For some reason, DJI is the worst as far as playing back in real time hardly ever, and I've thrown in the towel on that stuff.

    But, again and alas, it plays just swell in VLC.

    I guess I should consider myself lucky that DJI cameras have smaller batteries, and force shooters to exercise a little discipline.

    Maybe I should be challenging the developers of VLC to make a batch converter that I can set in and out points.  That'd be faster than trying to trim shots before transcoding in Pr. 

    Or, maybe they could build an NLE around VLC that we could export rough cut XMLs to Pr for finishing.

    R Neil Haugen
    Legend
    December 17, 2018

    You might be able to ingest via Prelude, mark in/out, and have Prelude make the t-codes from the marks.

    Neil

    Everyone's mileage always varies ...
    Legend
    December 14, 2018

    I recommend using Cineform proxies for all H.264/5 media.  The performance improvement is significant, especially once effects come into play.

    Work offline using proxy media |

    Mo Moolla
    Legend
    December 14, 2018

    Proxies are the way to go yes

    Mo Moolla
    Legend
    December 14, 2018

    Hi Jim

    One of my Macs is almost identical to yours spec wise.

    As carolinesears​ mentioned 4K footage is not very easy on the software,

    So while you might have 12 cores, dual CPU's, a ton of RAM and a monster GPU I am afraid these mean very little in real world terms to performance gain.

    The software just has not matured enough to allow all that hardware to be addressed.

    So most people build a monster pc or Mac and expect 4K -8K to play as smoothly as a 1080p HD recording.

    It won't. Full stop!

    There are ways to increase speed slightly i.e fast separate SSD's for media and cache but the only real benefits you will see when going big with hardware is on the render times. This is where the faster CPUs and RAM come into play. GPU's are used to render out mainly effects but this is now slowly changing as better architecture is being developed.

    So hang in there, I am sure sometime in the near future we will see a point where hardware meets software and both speak the same language.

    Right now software is speaking mandarin, hardware is replying in Spanish and neither has a vocabulary of more than a few words.

    Mo

    December 14, 2018

    Today i updated my Nvidia graphisc card and enabled CUDA..   in " Project Settings / Generel ... Premiere pro 2019 is running just fine again after this ,- also my 4k video .  Try this

    Inspiring
    December 14, 2018

    Mougaard  wrote

    Today i updated my Nvidia graphisc card and enabled CUDA..   in " Project Settings / Generel ... Premiere pro 2019 is running just fine again after this ,- also my 4k video .  Try this


    I have the most recent drivers installed for my rig.  I'm not ready to jump to 2019 yet.  I don't think it's ready for professional use yet, based on a project I started after it came out, and ended up downgrading to 2018.  BTW, some good news is that the XML export/import required to retrograde saved a bunch of my Lumetri color effects and settings.

    I just tried opening my project in the 2019 update of Pr that came out yesterday or the day before, and there's no improvement in playback performance.  Zero.  Bupkis.  Nada.

    I'm glad it's working for you.  I wish I had your secret.

    I'm going to keep repeating this:  FOOTAGE PLAYS PERFECTLY IN VLC and using Spacebar Play in the OSX Finder.

    Those who are suggesting proxies are apologists for Adobe.

    December 14, 2018

    Okay, maybe I have to correct myself .. I can run 4K video without any effect on .. But If i ad a LUT or just abit sharpness .. i can´t.  1080p mp4 is ok , no problem .  So i i want to edit 4K video i have to use proxi , like anyone else. 

    But i realy don´t do 4K video .. and and customers are not interested in 4K.

    caroline_edits
    Community Manager
    Community Manager
    December 14, 2018

    Hey Jim!

    Playing back 4K footage is a hefty job for any software, no matter how dope your computer is (and it's pretty dope). I would suggest making proxies! It's the only guaranteed way for a program to be able to keep up with your editing speed while using high-quality footage. It takes a little bit of time at the beginning of your project but it saves you a lot of frustration down the line.

    Here's a couple of resources:

    How to Use Proxies to Edit Fast in Adobe Premiere Pro CC — Premiere Gal

    Adobe Premiere Pro Help | Ingest and Proxy Workflow in Adobe Premiere Pro CC

    Hope that helps!

    -Caroline

    December 14, 2018

    Thanks for the Proxi tip ..  very helpful

    R Neil Haugen
    Legend
    December 14, 2018

    I know it's frustrating. Is for me at times also. Some sequences the H.264 works fine, others ... not so much.

    Which is where proxies and t-codes still come in to use. Both make editing a lot faster ... and good t-codes even help a bit with exporting in my rig. I mostly use proxies ... but when I do a bigger project (for me ... ) I do tend to t-code.

    Neil

    Everyone's mileage always varies ...