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IDProjectCategoryView StatusLast Update
0000619madVRbugpublic2019-09-30 20:24
Reporterfireattack Assigned Tomadshi  
Status assignedResolutionopen 
PlatformPCOSWindowsOS Version7
Summary0000619: Forced deinterlacing video mode or deint=on flag has no effect
DescriptionForcing deinterlacing (type=video) doesn't seem to work.

The OSD will say "deinterlacing on" but no deinterlacing is happening.
Steps To Reproduce1. Make sure deinterlacing feature in other parts of the playback is disabled, such as in player or decoder for testing purpose (I use LAV and just I set it to always output "progressive" flag).

2. Open a video which has actual content being (truly) interlaced.

3. Either:

1) Manually turn on deinterlacing using the shortcut (I think the default is ctrl+shift+alt+D) during the playback.

2) or simply add "deint=on" to the filename.
Additional InformationIt *works* for IVTC, however.

If I put deint=film, or toggle on deinterlacing on and then toggle the type to "film", it can do the IVTC properly on telecined video.
TagsNo tags attached.
madVR Version0.92.17
Media Player (with version info)MPC-BE 1.5.3 (build 4488)
Splitter (with version info)MPC-BE built-in
Decoder (with version info)LAV video decoder 0.73.1
Deinterlacingforced video mode
DXVA2 Scaling Activeno
Aero / Desktop CompositionOff
Problem occurs with modeall modes
GPU ManufacturerNVidia
GPU ModelGTX 1050
GPU Driver Version430.86



2019-09-24 06:21


bug-madvr.png (808,666 bytes)


2019-09-24 08:21

administrator   ~0002555

According to the OSD, deinterlacing seems to be active. Maybe the Nvidia DXVA deinterlacing simply fails to properly deinterlace this video, for some reason? Have you tried multiple different videos?


2019-09-24 08:42

reporter   ~0002556

Last edited: 2019-09-24 08:43

Yes, it happens on all the videos.

I should mention that *AUTO* deinterlacing actually works (on this or any interlaced videos, when they have proper interlaced tag), only the forced one doesn't.


2019-09-30 11:02

reporter   ~0002558

i can confirmed this. it's quite odd and needs a change in the lavfilter settings to happen.

take a file that works with deinterlacing out of the box set lavfilter to deinterlacing to disabled (progressive) play the file press control+shift+alt+d for deinterlacing DXVA processing is loaded but doesn't do anything.


2019-09-30 11:05

reporter   ~0002559

Last edited: 2019-09-30 20:24

Because this bug only happens to forced deinterlacing, not when there is a proper tag from upstream.

Alternatively, you can try with a video that has interlaced content but wrongly encoded/tagged as progressive (the principle is the same.)

Issue History

Date Modified Username Field Change
2019-09-24 06:21 fireattack New Issue
2019-09-24 06:21 fireattack File Added: bug-madvr.png
2019-09-24 08:21 madshi Note Added: 0002555
2019-09-24 08:42 fireattack Note Added: 0002556
2019-09-24 08:43 fireattack Note Edited: 0002556
2019-09-24 08:44 madshi Assigned To => madshi
2019-09-24 08:44 madshi Status new => assigned
2019-09-30 11:02 huhn Note Added: 0002558
2019-09-30 11:05 fireattack Note Added: 0002559
2019-09-30 20:24 fireattack Note Edited: 0002559