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Loss of quality?
Posted by Frank Valtellina on February 3, 2012 at 10:37 amA question for you… when I export a simply project made only of cut and nothing else using cmd+e and current setting, the file will be recompressed or It will keep the original DVCPRO HD compression as the shootings have been done? In other words I’ll have a loss of quality?
Frank Valtellina replied 14 years, 3 months ago 4 Members · 7 Replies -
7 Replies
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Jeremy Garchow
February 3, 2012 at 1:26 pmThe only timeline codecs available to FCPX are several favors of ProRes and uncompressed 10bit.
When you export, you will have a ProRes movie.
While your footage is transcoded, there’s no loss of quality.
Jeremy
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Andy Neil
February 3, 2012 at 5:20 pm[Jeremy Garchow] “The only timeline codecs available to FCPX are several favors of ProRes and uncompressed 10bit.”
Actually Jeremy, that’s not true. You can export out in DVCPRO HD, HDV, XDCAM EX and XDCAM HD if you’re working in an HD sequence. If working in standard def, you can export DV, DVCPRO 50, and IMX.
That’s in addition to H264. Uncompressed and ProRes. Basically, if it’s a codec that FCPX can handle natively, then it can export it natively.
If you use “current settings” in the export dialogue however, you will always end up with a ProRes clip. But just select the drop down and below the main settings are the additional settings you can use.
Andy
https://www.timesavertutorials.com
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Brian Mulligan
February 3, 2012 at 5:54 pmSince you are working in compressed video formats.. and you export out to a compressed video format… there will be quality loss. I don’t believe that there is a rewrapping transcode happening.
You will be compressing DVCPROHD to DVCPROHD.. dub of a dub = quality loss.
Brian Mulligan
Senior Editor – Autodesk Smoke
WTHR-TV Indianapolis,IN, USA
Twitter: @bkmeditor -
Jeremy Garchow
February 3, 2012 at 6:35 pm[Andy Neil] “Actually Jeremy, that’s not true. You can export out in DVCPRO HD, HDV, XDCAM EX and XDCAM HD if you’re working in an HD sequence. If working in standard def, you can export DV, DVCPRO 50, and IMX.”
In this case, exporting is different than a timeline rendering codec. In X this means you bring in whatever codec, edit and add effects which are rendered to ProRes, then you export (transcode) to a destination codec.
This is different than setting your timeline to, say, DVCPro HD, and exporting a DVCPro HD movie (with no transcode) as Legacy lets you do.
If I bring in an h264 file, place it on a Project with all automatic settings, don’t do anything to it and export (command-e) the resulting file is a ProRes file.
Screen grab here:
Jeremy
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Andy Neil
February 3, 2012 at 7:09 pmTrue, but the OP said it was a cuts only sequence which means no rendering was presumably necessary.
Andy
https://www.timesavertutorials.com
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Jeremy Garchow
February 3, 2012 at 7:16 pm[Andy Neil] “True, but the OP said it was a cuts only sequence which means no rendering was presumably necessary.”
I still don’t think you can do this without transcode.
You can see by the time it takes to export something. It’s obviously transcoding.
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Frank Valtellina
February 4, 2012 at 9:13 amThanks guys… at the end the best thing to do for export a file with the best quality is: turn off the “background render” and only at the end of editing export the project… in this way FPCX will render the clips and any effects applied only once. Whichever compression type selected
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