More > JRiver Media Center 29 for Windows
JRVR Status, Plans and Upcoming Changes
Andy22:
--- Quote from: danbez on May 24, 2022, 06:04:34 pm ---Question: Should I expect JRVR to take advantage of the DV dynamic tonemapping metadata and on top of it handle a 2nd tone map to deliver a final SDR BT.2020 image to my projector? Or will the DV metadata be ignored in this case?
(this is all assuming I am using a MKV file with DV data).
--- End quote ---
If i try to play any DV profile file with dynamic metadata, the MEL/RPU is just ignored and the test-scenes never change. At best JRVR is using the static metadata and does the color-conversion of the special DV P5 colorspace.
So on real DV content, most scenes are too dark, compared to native DV playback.
danbez:
Thanks! I will wait until the dynamic tone mapping is supported.
Daniel.
datdude:
I upgraded to MC 29 but am still getting dropped frames that I am not seeing in Madvr. I was able to replicate one that happens precisely at 11:09 in the American Made UHD movie. It happens at the exact same time every time, but does not happen in Madvr. I dropped all of the performance features to reduce the load, but it did not help.
datdude:
After more extensive testing it appears that checking the box for "Hardware accelerate video decoding when possible" fixes the issues with certain frames/scenes causing dropped frames, the drops even occur in madvr without checking Hardware acceleration. However, in JRVR every few minutes or so, I'd say at most 5 min or less, a frame is dropped no matter what when this feature is checked. I can rewind a bit, reset the stats, and then try to play that same scene again and there are no dropped frames. It appears to be timed based, so maybe checking that box is messing with the clock in JRVR somehow.... In madvr, with this box checked, I have never seen any dropped frames, or at least not ones that are on a regular time frame. It probably has to do with me being in AMD. I’m going to have to stick with madvr at this point.
jmone:
Apart from turning on HW Acceleration, you may want to turn on Video Clock (if you are not bitstreaming) and this should sort out the time based drops (which is caused by the drift between the Audio Clock and presentation of the Video Frames). Another option to use is turning on "Display Settings automatic change mode".
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