Calibrated Software MXF Import v3 - Manual (Page 36)

Page | 33
As an ADVANCED OPTION: The 8-bit importing of DNxHD MXF and DNxHD MOV files can be set to 8-bit YUV422
instead of 8-bit RGB. Bit depths greater than 8-bit (such as 10-bit YUV422) would still be decoded as 16-bit RGB in
AE/PPro which most likely would impact playback speed. This is an advanced setting in AE/PPro and should only be
used for playback and editing performance increases in PPro when working with DNxHD MXF files using the ‘Full
Range’ option or with DNxHD MOV files embedded with the ‘RGB” Color Levels. You should NOT set this option
when working with DNxH
D MXF files using the ‘SMPTE Range’ option or with DNxHD MOV files embedded with the
‘601/709” Color Levels. Also, if an Alpha channel was saved with the DNxHD Video then the Alpha channel would not be
present in the 8-bit YUV422.
To set this ADVANCED OPTION
– please make sure all Adobe applications are closed and then go to the below folder
on your computer. The ‘AppData’ folder on your Windows computer may be a hidden folder.
Windows:
[System Drive]\Users\[YourAccount]\AppData\Roaming\Adobe\Common\
Mac OSX:
/Users/[YourAccount]/Library/Application Support/Adobe/Common/
Open the file MediaCoreQTCodecRulesCS5.xml in Notepad on Windows or TextEdit on Mac.
For Mac OSX
– edit this line and change ‘argb’ to ‘2vuy’ and save the file – please sure you are editing the line
that has ‘AVdn’ ‘mactel’ ‘decode’ in it – do NOT edit the line that has ‘encode’
<QTCodec codec='AVdn' vendor='****' platform='mactel' direction='decode' versionlow='0x00000' versionhigh='*'
gammatag='false' cvbuffertag='0' deepdecodefourcc='b64a' decodefourcc='argb' />
For Windows
– edit this line and change ‘argb’ to ‘2vuy’ and save the file – please sure you are editing the line
that has ‘AVdn’ ‘’windows' ‘decode’ in it – do NOT edit the line that has ‘encode’
<QTCodec codec='AVdn' vendor='****' platform='windows' direction='decode' versionlow='0x00000' versionhigh='*'
gammatag='false' cvbuffertag='0' deepdecodefourcc='b64a' decodefourcc='argb' />
After saving the file, you can re-open After Effects and Premiere Pro and now whenever you import DNxHD MOV files or
DNxHD MXF files they will decode as 8-bit YUV422 when working at lower bit depths
– they still will be decoded as 16-bit
RGB at higher bit depths.
Please be aware that
1. Setting this option will impact the workflow of any DNxHD media decoding RGB at SMPTE RGB Levels as the 8-
bit YUV will be converted to Full Range by Adobe but the Avid QuickTime Codecs will deliver SMPTE RGB when
16-bit RGB is used.
2. This setting will apply to both Premiere Pro and After Effects
3. This setting will apply to any type of DNxHD MXF file or DNxHD MOV file imported into Premiere Pro or After
Effects
4. Premiere Pro and After Effects will always convert the 8-bit YUV to Full Range RGB