This IS the Avid L2: Re: [Avid-L2] QT ProRes opens in QT 7 but not QT10

Wednesday, July 31, 2019

Re: [Avid-L2] QT ProRes opens in QT 7 but not QT10

Not sure, but I take it Avid will play them, since (AFAIK (well, not know, guess)) it does not rely on AVfoundation. (QT7 neither.)

For a test, download the demo of subbits:

https://www.videotoolshed.com/product/subbits-subtitler/

Run it, and do a 'link video' (NOT convert and link)

See if that plays. (That is definitely AVfoundation playback.)

Then, you could try to hack the files with my FourCC change app.

(You need to have a PC, but I could make a Mac version.)

https://www.videotoolshed.com/product/fourcc-change/

If you don't have a PC handy, mail me a (small) problematic example file and I'll have a look.

HAIL APPLE, HAIL APPLE.

Bouke

Edit 'B / VideoToolShed.com
van Oldenbarneveltstraat 33
6512 AS Nijmegen
+31 6 21817248

On 30 Jul 2019, at 20:19, hoplist hoplist@hillmanncarr.com [Avid-L2] <Avid-L2@yahoogroups.com> wrote:

Recently I have been running into Quicktime (.mov) ProRes masters that Quicktime 10 can't open but QT7 can. It also appears that the current Adobe Premiere cannot but the older Adobe Premiere could because these same files are referenced in projects that can no longer read them properly. I've tried El Cap and Sierra systems. Can't test Media Composer at the moment, though that would be logical.

Simply resaving with QT7 doesn't fix it, but "exporting" as new ProRes file does. One possible common trait is that the masters were made by Media Composer, but that's based on a limited sample set.

Is there a problem with older ProRes files not being compatible with the new ProRes codec? I did not think this 32-bit to 64-bit transition was a problem for ProRes files..

Cheers,
tod