Hi!
For some reason VapourSynth's viewer and subsequent encoding crashes with ProRes source from AJA's ControlRoom (Hybrid 2025.05.18.2)
[attachment=3382]
AFK atm. did you try another source filter? I.e. BestSource?
This actually fixes the problem, but I don't quite understand why..
BestSource uses a newer libav library as source and that propably fixed some problem related to the format or container.
Cu Selur
Sorry for being kinda off-topic, but how to properly convert 10bit->8bit footage?10 bits in ProRes are excessive for my use case (VHS) since SNR is pretty low
fmtconv inserted before QTGMC looks like a potential solution
Hybrid by default tries to only apply color changes when necessary.
Hybrid offers multiple ways to change the color space:
- 'Filtering->Vapoursynth->Misc->Source->Convert to target color space after source' will convert to the output color format directly after loading the source.
- For most filters under "Filtering->Vapoursynth" with "Filtering->Vapoursynth->Misc->UI->Show 'Gimmick'-controls" enabled, you can:
- Convert to a specific color, or
- Restrict the bit depth
![[Image: grafik.png]](https://i.ibb.co/PGJTjL3t/grafik.png)
- You can always add custom code in a 'Custom'-section before some Filter. (note that the filter does not have to be used, this is about the filter position in the filter order)
In case of wanting a specific color space, you could even let Hybrid do it by entering:
Code:
# requires colorformat YUV422P8
Code:
# defining beforeDeCross-function - START
def beforeDeCross(clip):
# requires colorformat YUV422P8
return [clip]
# defining beforeDeCross-function - END
...
# adjusting color format to YUV422P8 for custom section
clip = core.resize.Bicubic(clip=clip, format=vs.YUV422P8, range_in_s="limited")
[clip] = beforeDeCross(clip)
You could also use fmtc in such a 'Custom'-section. If you change the color format make sure to let Hybrid know you did so.
Quote:Insert before:
Select the position the custom script addition should be inserted before.
In custom sections you can use:
- '# scantype <tff|bff|telecine|progressive>' to let Hybrid know that the scan type changed.
- '# colorformat <YUV420P8|...YUV444P16|RGB24|..|RGBS>' to let Hybrid know the color format changed.
-'# width <48-16384>' to let Hybrid know the width changed.
-'# height <48-16384>' to let Hybrid know the height changed.
-'# framerate <0.01-1000>' to let Hybrid know the frame rate changed.
-'# colormatrix <Rec.709|FCC|Rec.601/470bg/470m|..|Chroma cl>' to let Hybrid know the color matrix changed.
-'# requires mod <1-..>' to let Hybrid know the custom addition requires modX.
-'# requires colorformat <YUV420P8|...YUV444P16|RGB24|..|RGBS>' to let Hybrid know the custom addition requires a specific color format.
-'# requires colormatrix <Rec.709|FCC|Rec.601/470bg/470m|..|Chroma cl>' to let Hybrid know the custom addition requires a specific color matrix.
- '# additional output <variablename> [, colorformat: <Vapoursynth>][, width: <48-16384>][, height: <48-16384>][, fps: <0.01-1000>][, colormatrix: <Rec.709|FCC|Rec.601/470bg/470m|..|Chroma cl>][, yuvluminancescale: <limited|full>][, scanorder: <progressive|tff|bff|telecine>]' add an additional output with characteristics, all not specified characteristics will be copied from the current variable
Hybrid will also replace:
- %FILTERPATH% with the current filter base path
- %SCRIPTPATH% with the current script base path
(tool-tip of 'Insert before')
Cu Selur
Thank you so much for the detailed explanation!