VideoHelp Forum
+ Reply to Thread
Results 1 to 6 of 6
Thread
  1. Hello,
    I need some YUV422 and YUV444 raw video sequences for testing ffmpeg encoding to these formats.
    I have 420 sequences.

    1.)Is there any site where i can download some test sequences(Any Resolution QCIF,CIF,... will do)
    2.)Is there any tool using which i can convert the 420 videos i have to YUV422 and YUV444 types?

    Any pointers appreciated.

    thanks,
    -AD.
    Quote Quote  
  2. Member
    Join Date
    Aug 2006
    Location
    United States
    Search Comp PM
    These might work for you:
    http://samples.mplayerhq.hu/raw-video/
    As for conversion, I'll leave that to someone more knowledgeable.
    Quote Quote  
  3. AviSynth can convert 4:2:0 (YV12) to 4:2:2 (YUY2):

    ConvertToYUY2()
    ConvertToYUY2(interlaced=true)

    VirtualDub can output 4:4:4 YUV. I've never tried it...
    Quote Quote  
  4. These are mostly 420 , but there are a few 422 sequences here:

    http://media.xiph.org/video/derf/
    Quote Quote  
  5. I tested VirtualDub's YUV 4:4:4 output and it works. Saving uncompressed gives an AVI file with the fourcc YV24. It's easy enough to locate the three planes of binary data. Here's a 720x480 Belle Nuit chart in raw YUV 4:4:4 (Y=16-235, not suitable for pluge testing):
    Image Attached Files
    Last edited by jagabo; 15th Feb 2010 at 13:15.
    Quote Quote  
  6. avisynth 2.6 beta apparently supports yv24 (but I would still wait for official release, I've of heard numerous bugs)

    from the changelog
    Added formats: YV24, YV16, Y8, YV411.
    Quote Quote  



Similar Threads

Visit our sponsor! Try DVDFab and backup Blu-rays!