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Discussion Starter · #1 ·
I have downloaded a few large files from ftp.crc.ca all of them are in .YUV format. I have tried to view them with Adobe premiere, Quicktime, Divx, Windows Meida Player, Elecard decoder and still nothing works. Any help is appreciated.
 

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DRS -


Let us know if you get this working...I'm in exactly the same boat.


I haven't got a clue what to do with these YUV files, and the site offers no information, either. YUV is a color-space, but I have no idea what format a file would have, or what would be able to display it.


Thanks!
 

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Discussion Starter · #5 ·
This may be the readme file. I have contacted the people listed on the website for help also...



--------------------------------------------

Video Quality Experts Group Test Sequences

--------------------------------------------


This directory contains the Video Quality Experts Group (VQEG) test sequences.


NOTE: Each sequence file beneath this directory is 182MB. Download

times of an hour per sequence is typical.


The sequence files are in the format specified by the VQEG Objective Video

Quality Model Test Plan except the alignment patterns have been removed.


The format is as follows:


10 Frames(Not used) + 8seconds Video + 10 Frames(Not used)


The 10 frames of unused video allow enough frames for an MPEG2

codec to stabilize. Objective models will skip these frames.


There are two video formats [email protected] and [email protected] The format may be

identified by the sequence file name. The [email protected] sequence file names end

with _525.yuv and the [email protected] file names end with _625.yuv. Both formats

contain 720 pixels (1440 bytes) per horizontal line. The [email protected] sequences have

486 active lines per frame and the [email protected] sequences have 576 active lines per

frame.


Each line is in pixel multiplexed 4:2:2 component video format as follows:


Cb Y Cr Y ...

720 Y bytes per line

360 Cb bytes per line

360 Cr bytes per line


Lines are concatenated into frames and frames are concatenated to form the

sequence files.


All sequences are from interlaced video source except src13 which was converted

from 24Hz film by the 3/2 pulldown method. The lines of the two fields are

interlaced into the frames. The top field of the [email protected] material is

temporally LATER than the bottom field (Bottom field first) and the top field

of the [email protected] material is temporally EARLIER than the bottom field (Top

field first).


The frame sizes are:


[email protected] Frame size = 1440 x 486 = 699840 bytes/frame

[email protected] Frame size = 1440 x 576 = 829440 bytes/frame


And the sequence sizes are:


[email protected] 8 sec + 20 frames file size = 699840 x 260 frames = 181958400 bytes

[email protected] 8 sec + 20 frames file size = 829440 x 220 frames = 182476800 bytes


Directories:


Reference - The Original unimpaired sequences.
 

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Have you guys tried renaming to .avi and loading it up with graphedt? It's just a packed YUV stream.
 

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Discussion Starter · #7 ·
Ok I'm stumped. I just looked all through dscaler and found no obvious way to open .avi files. Ahhh now I see you have edited your post--thought I was going crazy there for a minute ;)


Graphedit, hmmm around here somewhere....
 
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