[FFmpeg-user] "fps 2997 is too large" - creates mov with bad public atom (error -2002

Steve C natgeo.operations at gmail.com
Tue Apr 2 13:03:35 CEST 2013


Yes, that file should play back fine, that is an example of the source file.

The problem starts when you try to use -c:v copy

FFMPEG shows an error:

"fps 2997 is too large"

play back the output file with quicktime it says:

"Error -2002: a bad public movie atom was found in the movie"

You can get -c:v copy to work, but you have to also use -timecode
00:00:00:00 -r 29.97  in the command statement.

I don't understand why -timecode and -r are needed to make this work.
I'm guessing it has something to do with the drop-frame timecode on a
because when I take a ProResHQ.mov with non-drop-frame timecode (PAL, 25fps)
i can get the -c:v copy command to work with no errors.

hope that helps.

thanks for testing this out, glad its not just me.


On Mon, Apr 1, 2013 at 10:55 PM, Nathan Lewis <nlewis at mail.crawford.com> wrote:
> On Mon, Apr 1, 2013 at 2:00 PM, Steve C <natgeo.operations at gmail.com> wrote:
>> Carl,
>> The error effects opening and playback with Quicktime 7, on both Mac and
>> Windows platforms.
>> Final Cut Pro works off of Quictime 7, so it makes sense that you cannot
>> import the file into Final Cut.
> Hi Steve,
> I just downloaded the file from the dropbox link provided and I am able to
> open and playback the file in both FCP and QT player on Mac OS 10.8.3 .
>  Both report the file to be MOS (no audio tracks).  Details:
> QT Player:  version 7.6.6 (1709) QT Version 7.7.1 (2599.24)   (Note:  I'm
> not sure what to make of the discrepancy between version and QT version)
> Final Cut Pro:  Version 7.0.3
> I've lost some of the history of the thread.  So, please let me know if I
> am missing something important or need to do any additional testing.
> Regards,
> Nathan
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