Maybe you meant the live input node? but video does not equal 8 bit always...
vade your 10 bit video can't be displayed on any consumer computer
monitor but Sony Digibeta decks record in 10 bit YUV and are commonly
used in broadcast. The most common source of > 8 bit video data is
film scanners or 3d rendering. film scanners (or a spirit Datacine)
can output 10 bit log DPX files which is unpacked to 16 bit linear and
3D is often rendered in 16 bit half float OpenEXR format for film
visual effects work.
Of course now the Red camera is starting to record in a RAW format
which is close to 10 bit log so >8 bit video is going to become more
common.
8 bit projectors and displays... I reckon only a few years away.
