Devices > Video Cards, Monitors, Televisions, and Projectors
Dropped frames after changing projectors
tij:
I havent dealt with DVD for some time ... as most were ripped long ago and were sorted into folders for MadVR profile (similar to what wer do with filenames).
I dont remember ... but wouldnt forcing Film Mode in MadVR force film to be played at 23/24?
As wer said ... to get best quality ... is largely trial/error ... unless you know exactly how DVD was created from original source ... and even then results can be strange.
PS. what format are your DVD stored in ... mkv? iso? or folder structure?
wer:
--- Quote from: tij on September 18, 2020, 02:12:38 pm ---I dont remember ... but wouldnt forcing Film Mode in MadVR force film to be played at 23/24?
--- End quote ---
No, tij. Forcing film mode turns on decimation, but does not actually change the display/playback rate. That's why the FPS change is necessary. If you turn on decimation (film mode) but leave the framerate at 29.97, the results are worse. This is not a well documented aspect of madvr, so a lot of people are confused about it.
curiousMonkey:
When I said "changed the video mode", I was referring to the desktop setting in the video card. I made no changes in MadVR or JRiver aside from turning Display Settings Automatic change to ON.
The number of dropped and repeated frames are not changing and the picture is stable. I was just supplying the output to show the final results.
I did not mean to imply that 59.94 was a problem, just the final result from using automatic change.
All of my files are stored in MKV as individual episodes. The directory structure is TV Shows\Show Name\files for all episodes.mkv.
wer:
--- Quote from: curiousMonkey on September 18, 2020, 03:37:44 pm ---The number of dropped and repeated frames are not changing and the picture is stable.
--- End quote ---
Ok, good job then, you should be set. Like I said, keep your regular desktop settings (usually 60Hz) and let MC handle mode switching when you play videos.
Keep in mind this result is just valid for NYPD Blue. If you try another series on DVD at these settings, like X-Files, you may see repeated frames constantly increasing. That's your sign that you need to set the FPS tag for the episodes of that series to 23.976.
Good luck...
tij:
--- Quote from: wer on September 18, 2020, 02:25:59 pm ---No, tij. Forcing film mode turns on decimation, but does not actually change the display/playback rate. That's why the FPS change is necessary. If you turn on decimation (film mode) but leave the framerate at 29.97, the results are worse. This is not a well documented aspect of madvr, so a lot of people are confused about it.
--- End quote ---
Darn ... this is not how I understood it ... assuming MadVR/MC was set up correctly to change display refresh rate to match played content ... my understanding was:
DVD comes in basic 3 flavors:
1. Has interlaced video that comes from interlaced source ... MadVR should use "Video Mode" for deinterlacing (without access to LAV settings in MC - I always wondered which deinterlacing technique MC use as default)
2. Has interlaced video that comes from progressive source using telecine (Hard-telecine) ... MadVR should use "Film Mode" for deinterlacing using IVTC (inverse telecine) that will get 23.976 through frame decimation
3. Has progressive video in original framerate that plays on old TV by doing telecine on fly (Soft-telecine) ... I always assume MC/MadVR played it as is (without doing soft-telecine that is needed for old interlaced TV)
MadVR can get 1 and 2 wrong on Auto mode ... thats why i test both to see which one is correct ... then sort them for MadVR profiling to force either Film or Video mode
Ofcourse ... this world is not perfect ... and there are glitches ... e.g. hard-telecine still got combing effect (likely video was telecined then edited/spliced afterwards with no regards on how it can be IVTC later)
... It seems I might getting this wrong ... darn ... need to research and test some more
EDIT: i think i got what wer was saying ... just tested case (3) and MadVR played it at 29.97 instead of 23.976 ... another headache to solve now :|
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