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IDProjectCategoryView StatusLast Update
0001517DCP-o-matic[All Projects] Bugspublic2019-03-31 21:03
ReporterCarsten Assigned Tocarl  
Status resolvedResolutionno change required 
Platform64 bitOSWindowsOS Version7
Product Version2.14.x 
Target Version2.16.0Fixed in Version 
Summary0001517: investigate 4k DCP playback in player and DCP-o-matic main.

4k DCP playback in player is extremely choppy (not even a decent slide show), even at quarter resolution decode mode. Even on a machine that is able to play back 2k at full decode res without dropped frames. Maybe there is more to be adjusted for 4k than reducing decode mode.

2k Cinema servers leave out the 4k layer completely for 2k playback. I was thinking that DCP-o-matic does the same in half res decode mode, and from there to quarter res. Maybe another scheme is needed to allow that for 4k J2K.

  • Carsten
TagsNo tags attached.
Estimated weeks required
Estimated work requiredUnknown



2019-03-30 18:25

manager   ~0003222

Oh, wow - that's interesting - playback of 4k on my 4coreHT Macbook is MUCH better than on my 12coreHT Windows workstation...

I get dropped frames, but otherwise, a still fluid playback.

So, forget about that. Would be interesting though why it's so bad on that WIN7 dual hexacore CPU.

  • Carsten

Issue History

Date Modified Username Field Change
2019-03-30 17:44 Carsten New Issue
2019-03-30 18:25 Carsten Note Added: 0003222
2019-03-31 21:03 carl Assigned To => carl
2019-03-31 21:03 carl Status new => resolved
2019-03-31 21:03 carl Resolution open => no change required