#394 bit depth in ProRes

More_attribute
open
5
2012-11-05
2012-11-04
pokazene_maslo
No

mediainfo doesn't display bit depth for ProRes video. Afaik ProRes supports up to 12-bit pixel depth

Discussion

    • milestone: 324170 -->
    • labels: 553241 -->
     
    • milestone: --> More_attribute
    • labels: --> Libray - File recognition
    • status: open --> pending
     
  • If I rely on:
    http://wiki.multimedia.cx/index.php?title=Apple_ProRes
    4:2:2 / 4:4:4:4 source material
    10-bit (12-bit for ProRes 4444) sample depth

    Do you agree it it exact?
    If it is the case, I could base the indication on the 422 / 444 flag.

     
  • https://en.wikipedia.org/wiki/Prores
    4:2:2 chroma subsampling
    10-bit sample depth

    4:4:4 chroma subsampling
    up to 12-bit pixel depth

    The "up to" is a problem, I don't know how to detect 10/12 bit difference.
    I need a sample with 444 at 10 bpp and a sample with 444 at 12 bpp, maybe I would find a difference in hte ProRes header (reverse engineering).
    Please provide samples 5I can provide a private FTP server access if you need one)

     
  • pokazene_maslo
    pokazene_maslo
    2012-11-05

    • status: pending --> open
     
  • On this webpage, where is the ProRes 444 10-bit file and where is the 444 12-bit file?