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Participating Frequently
May 8, 2017
Question

Video bug lag saccade slow

  • May 8, 2017
  • 1 reply
  • 696 views

hi my computer :

-windows 10 - 64 bit

-amd a8-7600 apu with Radeon r7 graphics

-2TB hard drive

-8GB DDR3 memory

Importing video in première pro and always lagging slow video sacaddé so how did I fix that problem. Que dois je faire pour régler ce probleme? My vidéo come from my new GoPro hero 5 black so for sure theres a solution. Thanks

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    1 reply

    R Neil Haugen
    Legend
    May 8, 2017

    That media is highly compressed "interframe" long-GOP. In other words, besides the standard "compression", it only records a complete frame to disc every 9-30 frames. In between, it records a data file of the pixels that have changed since the previous (or next) 'I' frame. So the computer de-compresses an I-frame, sends it along for playback & to RAM, calls up the next p or b frame data-set, recalls the I-frame, computes the differences ... sends on & stores ... calls up the next data ... on and on.

    Very hard on the hardware to do that and do all the things that a heavy duty video editing program like PrPro demands at the same time.

    If you have only the 8 GB of RAM, and only one spinning hard-drive disc ... you've got hardware limitations there also. Not enough RAM for what's needed, and not enough read/write speed to pass all the data to and from the motherboard as needed.

    Adding at least one other fast late-generation SSD to either a direct connection with the motherboard, or a Samsung T3 via a USB3 port, and putting your projects and media on that drive, leaving the programs and cache files on the system drive would help.

    Also ... at the least, "ingesting" that media using Media Browser's "Ingest" option, set to create proxies using a Cineform preset, would allow it to make media for editing purposes that would pass through the system better. Do NOT confuse smaller file-size on disc with easier playback ... H.264 mp4 and Qt mov files are NOT appropriate codecs for proxies. Cineform, or DNxHD are better.

    I know people who use Media Encoder or Prelude to batch-convert such media to files named exactly as the originals, in "full" quality. They archive the originals and use the transcoded files ... typically again Cineform or DNxHD/R ... for editing. When they archive the project, they dump the transcoded media, putting all the project files into the folder tree with the archived original media, as they can make new transcodes for editing if needed ... and the transcoded files are maybe 2-4 times bigger on disc than the original media.

    Neil

    Everyone's mileage always varies ...
    Dahme1985Author
    Participating Frequently
    May 8, 2017

    So in other word i need another external hard disk and witch media browser do I need for windows 10  and how did I set to create proxie using cineform preset? Excuse me I'm new in GoPro video editing!

    R Neil Haugen
    Legend
    May 8, 2017

    A Samsung T3 SSD external, if you've got a USB3 port, and not just any other drive ... those seem to handle an amazing sustained throughput while PrPro is working.

    The Media Browser is PrPro's media navigation panel, in the Editing workspace is in the panel group in the lower left corner.

    In that panel, there's a wrench icon, just to the right of the word "Ingest" ... click that, you're onto the Ingest Settings dialog. Click the drop-down for ingest presets, select the Cineform one they ship with, and you'll be ok.

    Neil

    Everyone's mileage always varies ...