[FFmpeg-user] ProRes (LT) Quicktimes: Good for Windows. Not so good for Mac.

Baptiste Coudurier baptiste.coudurier at gmail.com
Thu Mar 22 17:02:48 CET 2012

Hi Thomas,

On 03/20/2012 02:46 PM, Thomas Worth wrote:
> On Tue, Mar 20, 2012 at 2:22 PM, Andreas Gumm <andreas.gumm at gmx.de> wrote:
>> Yes, this is a known issue! Your files has been correct encoded! FCP just
>> complains sometimes about external encoded ProRes footage!
>> It seem to be that some missing header informations or other stupid missing
>> informations let FCP think the file looks not compatible!
> About this, I think the Final Cut media warning may be related to the
> A/V interleaving, i.e. the way the chunk offset tables are written. I
> don't think it has as much to do with information in the QuickTime
> header. Files written without audio don't show the warning. Baptiste
> Coudurier might comment on this. If anyone knows why this is
> happening, is would be him.

Yes, this is because FCP expects audio chunks to be approximately
48000 samples.

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