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H.264 Fast Turn Around…
Posted by Steven Quinn on August 5, 2009 at 7:54 pmI realize that H.264 editing in FCP is non ideal, but I have a need to turn around rough cut edits quickly and was hoping to use FCP to do so. The issue I am having is that no matter how I configure my sequence, it seems that my H.264 source always needs rendering. I have dragged my files directly into a new sequence and the settings look correct (H.264, 640×480, …), but the red-render bar shows up. The clips play OK in the source monitor. I am working with SD files (main profile, level 3.1, 6Mb/s, interlaced coding, 720×480 pixel, 640×480 display, …).
I realize that transcoding the media first would be ideal, but the time to do so would hurt the workflow.
Thanks in advance for any pointers.
I am running version 7 Pro.
Steve
Steven Quinn replied 17 years ago 7 Members · 9 Replies -
9 Replies
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Russell Lasson
August 5, 2009 at 8:20 pmChange sequence settings to 720×480 and use ProRes Proxy or LT as your compressor. You might need to change the distort on the clips to have them display correctly for the 720×480 pixel aspect ratio. RT Extreme only works with standard broadcast frame sizes and 640×480 isn’t a standard for broadcast.
Also, change RT settings to unlimited and you might even consider dropping the quality to medium or low for better playback speeds.
Audio will most likely need to be rendered constantly.
-Russ
Russell Lasson
Colorist/Digital Cinema Specialist
Color Mill
Salt Lake City, UT
http://www.colormill.net -
Mark Raudonis
August 5, 2009 at 9:13 pm[Steven Quinn] “I realize that transcoding the media first would be ideal, but the time to do so would hurt the workflow.”
Ok. Then how about using the right tool for the job? If you’re whining about rendering time, then
perhaps you would want to acquire in a codec that works natively with FCP.If a “Fast Turnaround” is critical to this project, then you’re handcuffing yourself by starting with h.264 files. Choose something else. It’s simple.
Mark
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Shane Ross
August 5, 2009 at 9:33 pmOr chose an NLE that can edit H.264 without the hassle. Dunno what that is, but something must.
Or convert..
Shane
GETTING ORGANIZED WITH FINAL CUT PRO DVD…don’t miss it.
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Zane Barker
August 6, 2009 at 5:08 am[Steven Quinn] “The issue I am having is that no matter how I configure my sequence, it seems that my H.264 source always needs rendering.”
[Steven Quinn] “I realize that transcoding the media first would be ideal, but the time to do so would hurt the workflow. “
Unfortunately you are going to have to spend time doing one or the other. Ether time to convert or time to render your choice.
I assume you are being supplied these h.264 file from somebody, and this somebody is probably the same person that wants fast turnaround time. I would explain to them that if they want fast turn around times then they need to be supplying you clips that are in a proper editing format.
There are no “technical solutions” to your “artistic problems”.
Don’t let technology get in the way of your creativity! -
Bouke Vahl
August 6, 2009 at 9:31 amYou are all wrong.
FCP is perfectly able to play back H264 RT. (No RT effects though, everything but hard cuts have to be rendered.)There are a few reasons FCP can bitch:
The sequence settings resolution and codec MUST match the video.
The QT’s must NOT be flagged another resolution for display than they in fact are. (But QT is famous for doing so even if you don’t ask for it.)
Audio MUST have a sample rate compatible with FCP (thus 32, 44.1 or 48 Khz.)If these requirements are met, and you drop a clip onto an empty sequence, FCP will warn you that some things won’t match. Just tell it to fix it for you and you’re golden.
Don’t believe me?
Watch the video here:
https://www.videotoolshed.com/?page=products&pID=35Bouke
https://www.videotoolshed.com/
smart tools for video pro’s -
Bouke Vahl
August 6, 2009 at 3:40 pmwell, i have mailed both Eric and you a couple of times about the progress, several weeks (months) ago, but never heard anything back…
Bouke
https://www.videotoolshed.com/
smart tools for video pro’s -
Steven Quinn
August 7, 2009 at 7:28 pmBouke,
Thanks for your constructive advice. The problem was with a display resolution miss-match in QT. By adjusting the DAR on the clips at the creation phase, they edit just fine for my workflow.
Steve
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