[AviSynth+] Need help with rendering subtitles on YUV420P10

Atak_Snajpera · 10th February 2018, 17:25

VSFilter does not work with 10 bit so I'm trying to overlay subtitles manually.

My code

Code:

SubtitleColor=BlankClip(video,color=$FFFF00,pixel_type="RGB32") 
SubtitleMask=BlankClip(video,color=$000000,pixel_type="RGB32") 

Loadplugin("C:\Users\Dave\Documents\Delphi_Projects\RipBot264\_Compiled\Tools\AviSynth plugins\VSFilter\VSFilter.dll")
SubtitleMask=VobSub(SubtitleMask,"C:\Temp\RipBot264temp\job1\5_subtitles_English_1080.sub")

SubtitleColor=ConvertToYUV420(SubtitleColor,matrix="Rec2020").ConvertBits(10)
SubtitleMask=ConvertToYUV420(SubtitleMask,matrix="Rec2020").ConvertBits(10)

video=Overlay(video,SubtitleColor,mask=SubtitleMask,opacity=1)

Result

Original

As you can see there is problem with mask because yellow color is not entirely removed. I reckon that it's a problem with 255 (8bit) vs 1023 scale (10bit) after conversion from RGB.
Can some expert help me to correct this issue?

10th February 2018, 17:25	#1 \| Link
Atak_Snajpera RipBot264 author Join Date: May 2006 Location: Poland Posts: 7,810	[AviSynth+] Need help with rendering subtitles on YUV420P10 VSFilter does not work with 10 bit so I'm trying to overlay subtitles manually. My code Code: SubtitleColor=BlankClip(video,color=$FFFF00,pixel_type="RGB32") SubtitleMask=BlankClip(video,color=$000000,pixel_type="RGB32") Loadplugin("C:\Users\Dave\Documents\Delphi_Projects\RipBot264\_Compiled\Tools\AviSynth plugins\VSFilter\VSFilter.dll") SubtitleMask=VobSub(SubtitleMask,"C:\Temp\RipBot264temp\job1\5_subtitles_English_1080.sub") SubtitleColor=ConvertToYUV420(SubtitleColor,matrix="Rec2020").ConvertBits(10) SubtitleMask=ConvertToYUV420(SubtitleMask,matrix="Rec2020").ConvertBits(10) video=Overlay(video,SubtitleColor,mask=SubtitleMask,opacity=1) Result Original As you can see there is problem with mask because yellow color is not entirely removed. I reckon that it's a problem with 255 (8bit) vs 1023 scale (10bit) after conversion from RGB. Can some expert help me to correct this issue? __________________ Windows 7 Image Updater - SkyLake\KabyLake\CoffeLake\Ryzen Threadripper Last edited by Atak_Snajpera; 10th February 2018 at 17:33.

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