BDSup2Sub - convert and tweak bitmap subtitle streams (VobSub,BD-SUP,BDN XML,HD-SUP) - Page 75

r0lZ · 3rd July 2020, 11:40

Thanks for the interesting bug report. It is strange that both versions try to merge the two subtitles, as their content are obviously different. Can you confirm that their coordinates on screen are different too ? Also, have you tried to change the --merge-time (or -x) option ? Perhaps setting it to 0 is sufficient to solve the problem...

Peter_A · 8th July 2020, 16:29

Quote:

Originally Posted by r0lZ

Thanks for the interesting bug report. It is strange that both versions try to merge the two subtitles, as their content are obviously different. Can you confirm that their coordinates on screen are different too ? Also, have you tried to change the --merge-time (or -x) option ? Perhaps setting it to 0 is sufficient to solve the problem...

If you're replying to my post, both versions did not try to merge the two subtitles. Only the Java one did. C++ version worked fine. Coordinates are different. I have not tried anything via CLI; my use was via the GUI.

CatBus · 20th February 2021, 18:32

I think I've found a bug in the Java version of BDSup2Sub (can't confirm C++). It looks like the colors of the subtitles get subtly changed when converting from BDN+XML to BD-SUP, in scenarios where I can't see a reason for this happening. You can magnify this by round-tripping the conversion multiple times.

Example: if the text in a BDN+XML subtitle is #E4E6E0, it gets converted to #E5E6E3 when you turn it into a BD-SUP. If you convert that BD-SUP back into BDN+XML, the color stays #E5E6E3. But then if you convert it back into a BD-SUP again, it then becomes #E5E5E5. Basically, every conversion from BDN+XML to BD-SUP slightly desaturates the colors.

I can't really tell where the conversion error is, but it may be in creating the image palette from the PNG files.

CatBus · 22nd February 2021, 18:45

I think the issue I described above is related to colorspace conversion (RGB->YCbCr), and it may well be that this is a normal amount of color shift due to lack of 100% color overlap between colorspaces. And the roundtrip magnification is why you should always try to reduce your colorspace conversions.

TL;DR: this may not be a bug at all, but just the normal weirdness that comes with colorspace conversion.

DeafYakuza · 2nd April 2022, 11:12

Is there anyway to convert to 2160p for 4K UHD?

I'm not happy with Subtitle Edit because it has issues on ASSA-Subtitles.

screamingtrees · 4th April 2022, 17:09

Can I request a feature? The ability to use keyboard shortcuts. I'm trying to delete lyrics from a bunch of anime .sups, and so far going through each edit dialog, clicking the bottom left box "exclude" and upper right box "store changes and skip" is proving to be pretty tedious. Open to other suggestions on how to do this (other than converting from PGS). Even an --exclude option for the command line would be better.

DeafYakuza · 28th September 2022, 11:35

Where can I find a logfile outside BDSup2Sub?

r0lZ · 29th September 2022, 10:45

You can check the warnings in the bottom pane. Also, there is a bdsup2sub directory here C:\Users\<you>\bdsup2sub, but AFAIK, it contains only the .ini

Gabu · 27th May 2023, 17:41

Hello. I'm trying to shift PGS subtitles with BDSup2Sup. Problem is, I can't never seem to make it just right. And by that I mean, but them right above the letterboxed bars.. but they don't seem to be perfect. Some lines stay just right but others go a bit below. It's strange. If anyone else uses BDSup2Sub, what do you do to shift the subs just right and perfect? I'd appreciate the input and help.

3rd July 2020, 11:40	#1481 \| Link
r0lZ PgcEdit daemon Join Date: Jul 2003 Posts: 7,460	Thanks for the interesting bug report. It is strange that both versions try to merge the two subtitles, as their content are obviously different. Can you confirm that their coordinates on screen are different too ? Also, have you tried to change the --merge-time (or -x) option ? Perhaps setting it to 0 is sufficient to solve the problem... __________________ r0lZ PgcEdit homepage (hosted by VideoHelp) BD3D2MK3D A tool to convert 3D blu-rays to SBS, T&B or FS MKV

29th September 2022, 10:45	#1488 \| Link
r0lZ PgcEdit daemon Join Date: Jul 2003 Posts: 7,460	You can check the warnings in the bottom pane. Also, there is a bdsup2sub directory here C:\Users\<you>\bdsup2sub, but AFAIK, it contains only the .ini __________________ r0lZ PgcEdit homepage (hosted by VideoHelp) BD3D2MK3D A tool to convert 3D blu-rays to SBS, T&B or FS MKV

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20th February 2021, 18:32	#1483 \| Link
CatBus Registered User Join Date: Jan 2012 Posts: 8	I think I've found a bug in the Java version of BDSup2Sub (can't confirm C++). It looks like the colors of the subtitles get subtly changed when converting from BDN+XML to BD-SUP, in scenarios where I can't see a reason for this happening. You can magnify this by round-tripping the conversion multiple times. Example: if the text in a BDN+XML subtitle is #E4E6E0, it gets converted to #E5E6E3 when you turn it into a BD-SUP. If you convert that BD-SUP back into BDN+XML, the color stays #E5E6E3. But then if you convert it back into a BD-SUP again, it then becomes #E5E5E5. Basically, every conversion from BDN+XML to BD-SUP slightly desaturates the colors. I can't really tell where the conversion error is, but it may be in creating the image palette from the PNG files.

22nd February 2021, 18:45	#1484 \| Link
CatBus Registered User Join Date: Jan 2012 Posts: 8	I think the issue I described above is related to colorspace conversion (RGB->YCbCr), and it may well be that this is a normal amount of color shift due to lack of 100% color overlap between colorspaces. And the roundtrip magnification is why you should always try to reduce your colorspace conversions. TL;DR: this may not be a bug at all, but just the normal weirdness that comes with colorspace conversion.

2nd April 2022, 11:12	#1485 \| Link
DeafYakuza Registered User Join Date: Mar 2016 Posts: 29	Is there anyway to convert to 2160p for 4K UHD? I'm not happy with Subtitle Edit because it has issues on ASSA-Subtitles.

4th April 2022, 17:09	#1486 \| Link
screamingtrees Registered User Join Date: Oct 2013 Posts: 14	Can I request a feature? The ability to use keyboard shortcuts. I'm trying to delete lyrics from a bunch of anime .sups, and so far going through each edit dialog, clicking the bottom left box "exclude" and upper right box "store changes and skip" is proving to be pretty tedious. Open to other suggestions on how to do this (other than converting from PGS). Even an --exclude option for the command line would be better.

28th September 2022, 11:35	#1487 \| Link
DeafYakuza Registered User Join Date: Mar 2016 Posts: 29	Where can I find a logfile outside BDSup2Sub?

27th May 2023, 17:41	#1489 \| Link
Gabu Registered User Join Date: Feb 2020 Posts: 8	Hello. I'm trying to shift PGS subtitles with BDSup2Sup. Problem is, I can't never seem to make it just right. And by that I mean, but them right above the letterboxed bars.. but they don't seem to be perfect. Some lines stay just right but others go a bit below. It's strange. If anyone else uses BDSup2Sub, what do you do to shift the subs just right and perfect? I'd appreciate the input and help.