17 May
2015
17 May
'15
12:05 p.m.
Christoph Gerstbauer <christophgerstbauer <at> gmail.com> writes:
do you realise that valid (specification-compliant) broadcast-range video may contain values < 16 and > 235?
Hello Carl, no, I don´t. Can you explain this to me? I always thought that SD broadcast levels has to be >16 and <235.
I cannot explain the relevant specifications (and I don't even know where to find them) to you but to the best of my knowledge: Just as "MPEG constant bitrate" does not mean constant frame size, so a stream containing video frames of different sizes is not necessarily "variable bitrate", you cannot judge a video stream as being non-"broadcast level" just because it contains values < 16 or > 235. Carl Eugen