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Mystery .yuv file

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Wayne Williams
Mystery .yuv file
on May 4, 2010 at 7:27:04 pm

Hello,

I have acquired a series of .yuv files that I need to transcode to MPEG 2. I tried going to Compressor directly and also doing a file import from final cut pro. Neither seem to recognize it.

When I do an "info" on it in the finder it displays as file_name.yuv and the kind as a unix executable. The only information that I have on the files are that they are uncompressed video streams.

Clearly I will need some intermediate tool to enable me to bring into compressor or even identify what I have. Any guidance is greatly appreciated.

Thanks,

Wayne
Portland Oregon


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Greg Booth
Re: Mystery .yuv file
on May 4, 2010 at 7:34:23 pm

Hi Wayne,

.yuv files are uncompressed 8-bit YUV image files, where each .yuv file is a single frame. There typically is no header of any kind - the height/width are determined by looking at the size of the file on disc.

I believe Shake understands what .yuv files are.

Hope that helps!

Cheers,
Greg

Calibrated Software


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Wayne Williams
Re: Mystery .yuv file
on May 4, 2010 at 8:11:45 pm

Actually the files are on the order of a Gig each, and we have an instrument, the Tektronix Picture Quality Analyzer 500, that is able to read and analyze these files so I am confident that it is a video stream and that they are HD versus a single frame.

I need to do an experiment that involves transcoding these files to MPEG 2, also I do not have Shake. Any other thoughts on a tool that allows me to bring into Compressor?

Thanks,

Wayne


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Greg Booth
Re: Mystery .yuv file
on May 4, 2010 at 8:27:22 pm

Hi,

Sorry can't help then. The only .YUV files I've known about are the .yuv image sequence files. Maybe try to see what software/hardware created the file and then go from that.


Cheers,
Greg

Calibrated Software


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matthew bradshaw
Re: Mystery .yuv file why don't you?
on May 4, 2010 at 8:36:35 pm

Left field suggestion ... why don't you, make a copy of the files and try changing the suffix or the copies to .mov or dot anything you can think of and see if anything will open those copies.
Matt.



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Wayne Williams
Re: Mystery .yuv file why don't you?
on May 4, 2010 at 8:52:46 pm

nothing wrong with trying something from left field.

unfortunately it did not work. thanks for the suggestions, i'll keep poking around.

w.


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matthew bradshaw
Re: Mystery .yuv file why don't you?
on May 4, 2010 at 9:01:30 pm

Can you make the smallest file available? You can email me via my website ... http://www.beermattonline.co.uk and you could send me a file via pando or some such. 3 heads are better than one.
Matt.



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Walter Soyka
Re: Mystery .yuv file
on May 4, 2010 at 8:59:42 pm

Have you tried this?

http://bax.comlab.uni-rostock.de/en/projekte/glyuvplay.html

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog - What I'm thinking when my workstation's thinking
Creative Cow Forum Host: Live & Stage Events


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gary adcock
Re: Mystery .yuv file
on May 5, 2010 at 2:18:06 pm

[Wayne Williams] "I have acquired a series of .yuv files that I need to transcode to MPEG 2. I tried going to Compressor directly and also doing a file import from final cut pro. Neither seem to recognize it."

These sound like video files output direct from a Linux system.

try something- change the .YUV name to .MOV and see if you get an 8 bit 2vuy (uncompressed) video file.



gary adcock
Studio37
HD & Film Consultation
Post and Production Workflows for the Digitally Inclined
Chicago, IL

http://blogs.creativecow.net/24640



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