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+--- Thread: [HELP] 25i to 29.97i with interpolation (/thread-2814.html)
RE: 25i to 29.97i with interpolation - Miranda - 23.07.2022
Just a black screen preview.
RE: 25i to 29.97i with interpolation - Selur - 23.07.2022
Okay (libav has problems with some hevc interlaced content):
Try enabling hardware decoding, assuming you have a intel or nvida gpu. Set 'Libav hardware decoding mode' to 3.
If you have an NVIDIA GPU you could alternatively enable 'Use DGDecNV when available'.
Cu Selur
RE: 25i to 29.97i with interpolation - Miranda - 23.07.2022
OK thanks, will try that. Where is the hardware decoding setting?
RE: 25i to 29.97i with interpolation - Selur - 23.07.2022
"Filtering->Vapousynth->Misc->Source->Libav hardware decoding mode"
RE: 25i to 29.97i with interpolation - Miranda - 24.07.2022
Sadly this did not work either, so converting original file to ProRes.
RE: 25i to 29.97i with interpolation - Selur - 24.07.2022
Okay, that is curious, since if the hardware decoder can't decode it no normal Player should be able to playback the file either.
RE: 25i to 29.97i with interpolation - Miranda - 26.07.2022
I think the problem may be to do with the pixel aspect ratio, which is .9141. I have no idea why it has been squeezed, when it is a 4x3 image. perhaps it has been flagged incorrectly as anamorphic?
RE: 25i to 29.97i with interpolation - Selur - 26.07.2022
you can overwrite the input PAR through: 'Crop/Resize->Base->Pixel Aspect Ratio (PAR)->Input PAR'
Quote:I think the problem may be to do with the pixel aspect ratio, which is .9141.that sound wrong, see: https://forum.selur.net/thread-597.html
Cu Selur
RE: 25i to 29.97i with interpolation - Miranda - 27.07.2022
What should I overwrite the PAL 4x3 PAR to?
RE: 25i to 29.97i with interpolation - Selur - 27.07.2022
Typicallly DVDs and oder MPEG-2 content uses generic PAR:
DAR
| PAL
| NTSC
|
|---|---|---|
|
4:3
|
16/15
|
8/9
|
|
16:9
|
64/45
|
32/27
|
Cu Selur