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PXW-X70 XAVC - L 422 50-mbit 4:2:2 Transcoding (Long GOP MXF footage)

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Chris Young
PXW-X70 XAVC - L 422 50-mbit 4:2:2 Transcoding (Long GOP MXF footage)
on Jan 13, 2015 at 8:29:38 am

I know for a lot of you have had issues decoding and converting the Sony XAVC-L 422 10-bit long GOP that comes with the X70 and some of the other PXW cameras. Well there is a bit of light on the horizon.

I have been dealing with a guy named David on the Acrovid support team. Acrovid are the authors of a great bit of very flexible quality conversion software calledFootageStudio4K. I sent him an XAVC-L clip a while back. The upshot is that he has got back to me with a download link for a trial version of FootageStudio4K that actually handles this codec beautifully. It can batch convert to many different codecs / wrappers etc, including many 'professional' codecs. This really opens up a new avenue for those of us stuck with nothing decent to decode these files.

Early days so far but I am having great success in converting these XAVC-L clips to ProRes. What I see I like. Unlike some ProRes conversions FootageStudio4K appears to be maintaining the correct IRE and gamma levels of the original source footage.

This is the gist of David's reply to me:

===================

"I just uploaded a new update with support for Sony XAVC format, your sample file is processed fine, when processing you can also remove the empty audio tracks by unchecking them in the audio tab or in the trimming dialog.

http://acrovid.com/footagestudio.htm

Please note that actual version implements most filters in 8 bits, so if both input and output videos are in 10-bit, the video is converted to 8 bits for processing. The 16 bits conversions actually implemented are the direct transcoding, and video resample, this is, if you activate the video resample and both input and output videos are in 10-bit, then the resampling is done in 16 bits keeping all the quality.

We are developing the full 16 bit processing version and I think will be ready in about 1 month, and of course it will be a free update for registered users."

===================

The latest news is that they are also working on a Pro version that should also support RAW. The software is designed to be portable and David said in due course there will be an Apple version but no timeframe on that yet.

Love to hear any feedback from anyone who tries FootageStudio4K out. The fact that it can export to numerous other formats is also very useful.

Note: I have no connection or association with and receive no incentives or rewards from Acrovid. I'm just excited that someone is making a good piece of XAVC conversion software

Chris Young
CYV Productions
Sydney


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Jane Kong
Re: PXW-X70 XAVC - L 422 50-mbit 4:2:2 Transcoding (Long GOP MXF footage)
on Mar 2, 2015 at 9:18:12 am

Has anyone tried this converter? I am interested in the result about it. But I am not really sure about the third-party software, still looking forward that some NLEs like FCP can support it natively.


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