Doom9's Forum - View Single Post - fmtconv: resize, bitdepth and colorspace conversions

Cary Knoop · 22nd July 2020, 08:41

Any idea why this fails on a ProRes4444 format? I presume it is the alpha channel.

Code:

c = core.ffms2.Source("prores4444.mov")
c = core.fmtc.bitdepth(c, bits=16)

Error:
c = core.fmtc.bitdepth(c, bits=16)
File "src\cython\vapoursynth.pyx", line 1862, in vapoursynth.Function.__call__
vapoursynth.Error: bitdepth: argument clip is not of array type but more than one value was supplied

Edited to add:

Found out the solution myself, if an alpha channel is present two clips will be returned.
This works fine:

Code:

c = core.ffms2.Source("prores4444.mov")
c = core.fmtc.bitdepth(c[0], bits=16)

22nd July 2020, 08:41	#306 \| Link
Cary Knoop Cary Knoop Join Date: Feb 2017 Location: Newark CA, USA Posts: 397	Bitdept function fails for ProRes 4444 Any idea why this fails on a ProRes4444 format? I presume it is the alpha channel. Code: c = core.ffms2.Source("prores4444.mov") c = core.fmtc.bitdepth(c, bits=16) Error: c = core.fmtc.bitdepth(c, bits=16) File "src\cython\vapoursynth.pyx", line 1862, in vapoursynth.Function.__call__ vapoursynth.Error: bitdepth: argument clip is not of array type but more than one value was supplied Edited to add: Found out the solution myself, if an alpha channel is present two clips will be returned. This works fine: Code: c = core.ffms2.Source("prores4444.mov") c = core.fmtc.bitdepth(c[0], bits=16) Last edited by Cary Knoop; 22nd July 2020 at 08:56.