TrimSubs - Script to cut text subtitles + AvsP macros

[vdcrim]

Originally Posted by real.finder

hi, first thank you for wonderful macros

I wonder if you could made macro that create x264 qpfile from the mkv chapters with support v1 & v2 timecodes and cfr too

Here's a demo (actually just a quickly modified 'Insert Trims from Matroska chapter file'). Not really what you ask for, because:

• Only CFR
• May not work properly for some ordered chapters or editions

Is it worth to make a better version? I'm sure you already know that vfr.py can create a qpfile at the same time as the chapter file.

[real.finder]

thank you for demo

I'm sure you already know that vfr.py can create a qpfile at the same time as the chapter file.

yes, I know that, but the vfr.py create it from trims only.

And the author said: "Conversion from a different input fps to output fps is not accurate"

and I'm working on a lot of sources, most of them have output fps =\= input fps (Whether vfr or cfr)

So I think I can create the chapter by vfr.py and then convert the chapter to qpfile

Because whatever the input fps different from the output fps, the chapter is Time Stats

So when I convert it to qpfile, I can choose the new fps for new video as I want


Thank you in advance

[vdcrim]

From what I see the frame numbers are corrected before writing them to the qpfile when the output fps is different from the input. That means that vfr.py and the macro above should produce the same result if all is correct.

To avoid that possible inaccuracy the readme talks about you can instead add a new line of contiguous Trims at the bottom of the script, and then use the --ofps value as --fps and drop the former from the command line, and add --reverse as well.

[real.finder]

I see, so I have to write new trims line after the new fps

In this case it will not differentiate much than I wrote qpfile manually

Also, vfr.py work from the trims only, it is not convert chapter to qpfile

anyway, thank you

[vdcrim]

Originally Posted by real.finder

I see, so I have to write new trims line after the new fps

In this case it will not differentiate much than I wrote qpfile manually

Also, vfr.py work from the trims only, it is not convert chapter to qpfile

anyway, thank you

I've never used vfr.py's fps convertion option and can't really talk about its possible inaccuracy, but anyway as the chapter file and the qpfile are created from the same corrected frames/times the frames in the qpfile should match the chapter starting times. If I understand well the thing that could be not completely exact is those starting times. So you would still have to write new trims anyway. Better try asking RiCON/wiiaboo about this.

[real.finder]

thank you, I'll try to edit your demo myself

[vdcrim]

Originally Posted by real.finder

thank you, I'll try to edit your demo myself

What I'm saying is that a macro may not be more accurate that vfr.py's qpfile. Again, ask wiiaboo what he means by 'conversion from a different input fps to output fps is not accurate'.

[real.finder]

from vfr.py Thread

"Can output a qpfile with converted frames meant to be used for an ivtc'd encode using non-ivtc'd frames (feature inspired by automkvchapters) (not completely accurate, obviously);"

and like I say, I need a chapter to qpfile converter

Because I work on sources not need to trim and have a chapter already

thank you again

[vdcrim]

Originally Posted by real.finder

from vfr.py Thread

"Can output a qpfile with converted frames meant to be used for an ivtc'd encode using non-ivtc'd frames (feature inspired by automkvchapters) (not completely accurate, obviously);"

That doesn't say from where the inaccuracy comes from. And anyway a macro would have exactly the same input data to produce a qpfile, so there's not reason to think it would be better. Again, as I don't use --ofps I can't say if vfr.py works as expected.

and like I say, I need a chapter to qpfile converter

Because I work on sources not need to trim and have a chapter already

OK then, I'll work on it.

[vdcrim]

Timecode support added. Try this (raw link).

[real.finder]

thank you very much I'll try it

[real.finder]

it work great

thank you, you are life saver

[real.finder]

hi, I have two mod

Insert Trims from bookmarks MOD (single-line).py

to make a full trims line from 1 bookmark or more

---------


QP file from Matroska chapter file (IDR).py

same as "QP file from Matroska chapter file" but the qp file will be I (IDR) instead of k, useful for open-gop, more details here

----

edit: another mod macros https://forum.doom9.org/showthread.p...49#post1770449

[vdcrim]

QP file from Matroska chapter file (IDR).py

same as "QP file from Matroska chapter file" but the qp file will be I (IDR) instead of k, useful for open-gop, more details here

i-frames with recovery point SEI (that your link shows that K uses for open-gop) should be seekable as well. Did you misread somewhere or did you really notice artifacts when using K instead of I?

[real.finder]

Originally Posted by vdcrim

i-frames with recovery point SEI (that your link shows that K uses for open-gop) should be seekable as well. Did you misread somewhere or did you really notice artifacts when using K instead of I?

I did't notice anything, but for more safety, and good place to cut without re-encoding

[real.finder]

hi

I did some edit, in "time2ms" and make "QP file from Matroska chapter file" work with mp4 chapters too, I change the name to "QP file from chapter file"

edit: added .ogm too

mod 3 for fix some float cases

github https://github.com/realfinder/AvsP-macros

[JudgeDredd]

what exactly are my options for -c switch ? I tried utf-8 etc but non works

[real.finder]

I did try to make this https://github.com/realfinder/AvsP-m...%20Subtitle.py

it work but sometimes it not accurate, I already try random fix but I think there are something missing, maybe peoples who has knowledge in vsfilter or libass can explain how to correctly convert subtitle time to frames

edit: I get an answer in irc.libera.chat/#libass, ceil(start timestamp in seconds * frames per second)