[FFmpeg-user] Levels and Primaries
Carl Eugen Hoyos
cehoyos at ag.or.at
Wed Feb 12 13:23:32 CET 2014
Robert Krüger <krueger <at> lesspain.de> writes:
> I would expect it to return the luminance byte that was
> encoded (for 8 bit) regardless of whether it is in
> broadcast range or full range.
Yes, you are right.
> Then IMHO the easiest thing for Rio to do to be
> completely sure would be to set a breakpoint where the
> frame is decoded in ffmpeg (Rio, let me know if you
> need help finding the right line) and look at the
> decoded luminance bytes in the debugger (or, if you do
> not want to use a debuger, hack your own log statements
> into the code to output individual pixel values, if you
> encode/decode an all black or white picture I guess you
> really only need to output the first luma value).
I still don't understand how any of these can be easier
than looking at rawvideo output.
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