MIME-Version: 1.0
Date: Fri, 2 Nov 2012 19:21:28 -0400
Message-ID: <CAN0dPSTjWogTCS_--WhJ3sNrZJKoK=bPgK3=b04oE8JNs8cifw@mail.gmail.com>
Subject: REC 709 level shifts
From: Sixtus Beckmesser <sbeckmesser@gmail.com>
To: AE-List@media-motion.tv
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I have created a whole bunch of stuff in AE that is supposed to end up on a
Blu-ray disc. I thought I was paying proper attention to the requirements
of REC709 Blu-Ray encoding, which spans a pixel-value range of 16 (black)
to 235 (max white).

I sent some uncompressed AVIs to the BD authoring house, they converted
them to AVCs and burned them on a BD. When I got the BD back for testing,
all the stuff near black (16) has been shifted upward in level. What have I
done wrong here?  Is this a Working Space problem? All the projects have
Color Management turned off and all the AVIs were rendered with preserve
RGB checked, in the vain hopes that an RGB pixel value of 16 would come out
as black. Should other settings have been used? Or is this something the
authoring house can fix?

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I have created a whole bunch of stuff in AE that is supposed to end up on a=
 Blu-ray disc. I thought I was paying proper attention to the requirements =
of REC709 Blu-Ray encoding, which spans a pixel-value range of 16 (black) t=
o 235 (max white).=A0<div>
<br></div><div>I sent some uncompressed AVIs to the BD authoring house, the=
y converted them to AVCs and burned them on a BD. When I got the BD back fo=
r testing, all the stuff near black (16) has been shifted upward in level. =
What have I done wrong here? =A0Is this a Working Space problem? All the pr=
ojects have Color Management turned off and all the AVIs were rendered with=
 preserve RGB checked, in the vain hopes that an RGB pixel value of 16 woul=
d come out as black. Should other settings have been used? Or is this somet=
hing the authoring house can fix?</div>
<div><br></div><div>=A0</div>

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