[FFmpeg-user] Not able to convert from AVID MXF XDCAM HD

[Robert Krüger]

On Wed, Oct 30, 2013 at 8:42 PM, Rienk Leendertse <subscribe at lasserij.nl> wrote:
>
>
> On 30 okt. 2013, at 11:10, Robert Krüger wrote:
>
>> Hi,
>>
>> On Wed, Oct 30, 2013 at 11:04 AM, Rienk Leendertse
>> <subscribe at lasserij.nl> wrote:
>>>> Hi,
>>>>
>>>> On Wed, Oct 30, 2013 at 8:53 AM, Rienk Leendertse wrote:
>>>>> Hi Carl Eugen
>>>>>
>>>>> Thanks for the quick reply.
>>>>> I will try to put a sample on an FTP server later today.
>>>>>
>>>>> Meanwhile can you please explain whether it should work natively, with XDCAMHD MXF files?
>>>>
>>>> I can confirm that it generally works with XDCAMHD MXF files, although
>>>> it depends on how they were created. Until very recently files created
>>>> using XDCAM transfer tool combined with FCP7 were not handled properly
>>>> (decoding worked somewhat but at least seeking was broken) but that is
>>>> fixed now.
>>>>
>>>> There are different flavours of MXF and the Avid flavour "Op-Atom" is
>>>> not supported by ffmpeg. Once you have uploaded the file I can have a
>>>> look at it, if it is such a beast.
>>>>
>>>>> Is installing AVID codecs necessary for this?
>>>>> I have avid LE codecs installed. Not AVID PE Codecs. Which seem to be necessary for XDCam footage?
>>>>> Or is it necessary to install Sony codec packages like XDCam transfer? Which I have.
>>>>> Or should ffmpeg be able to play (and decode) it natively.
>>>>
>>>> No ffmpeg does not interact with these things on your system. It's
>>>> MPEG2 decoder is perfectly capable of playing/decoding all XDCAM
>>>> variants I have seen.
>>>>
>>>>>
>>>>> I'll check te files today. Because I found out that Assimilate scratch does play the video and audio file, but adobe media encoder CS6 chokes in the video files (without a descriptive log, just "could not export"). AME does convert the audio file, though.
>>>>> XDCam transfer doesn't take either of the files. So I suspect a problem with the files.
>>>>>
>>>>> In the previous post I said the video and audio MXF were exported from Avid MC 6. That is not really true.
>>>>> They were video and audio mixdowns, which I thought should not make a difference, but perhaps it does?
>>>>>
>>>>> Hope you can answer the general questions above. Meanwhile I'll check the MXF files on an avid system today....
>>>>>
>>>>
>>>> Cheers,
>>>>
>>>> Robert
>>>> _______________________________________________
>>>> ffmpeg-user mailing list
>>>> ffmpeg-user at ffmpeg.org
>>>> http://ffmpeg.org/mailman/listinfo/ffmpeg-user
>>>
>>> thanks Robert,
>>> don't have acces to your ftp server right now. (Too many connections for this IP).
>>> Probably someone somewhere in the building has a connection with your server now.
>>> Will try it later today, otherwise tonight, from my home...
>>
>> You can also use http://www.datafilehost.com if that works better for you.
>
> Well,
>
> obviously you guys are more command line people than I am :-)
> (no pun intended)
> Filezilla, Cyberduck and safari were not able to upload, but plain command line ftp put did the trick...
>
> There are testfiles now on the ftp server, with an explanation text. file names all start with 1sec_mxf_test

These files are Op-Atom files as suspected, which means this is not a
bug but a missing feature. Support for this flavor of MXF is not
implemented. I attached all diagnostic info I have about the files.
Maybe it helps if someone wants to tackle this.

If you need to convert the files to something ffmpeg can handle (for
further processing), you can use the bmxtranswrap utility from the bmx
project at sourceforge.