Pluto Subtitles

[doctorm]

I'm trying to grab the subtitles from a movie on Pluto.tv and convert it to .srt. While it's easy enough to get the playlist, the format is strange.

As far as I can tell the numbering of the linked .vtt files and the timecodes of the subtitles reset to zero after each commercial break(?). So there are multiple similarly named files and the time codes overlap.

Copy of playlist:
https://www.mediafire.com/file/t1h2psu9jmnn25y/playlist.m3u8/file

I'm open to suggestions on how to manage this one.

[[ss]vegeta]

Wow, this looks extremely weird. I don't think there's an easy fix for this.
Do you really can't find the subtitles anywhere else?

[jack_666]

Looking at the breaks/restarts ....

https://siloh.pluto.tv/c6009f_pluto/clip/5e9efff357d2e0001a0997a1_Indiscreet_1958/subHD/20200421_071515/hls/0-710628/en/en.m3u8_0000000000.vtt
https://siloh.pluto.tv/c6009f_pluto/clip/5e9efff357d2e0001a0997a1_Indiscreet_1958/subHD/20200421_071515/hls/710629-1392351/en/en.m3u8_0000000000.vtt
https://siloh.pluto.tv/c6009f_pluto/clip/5e9efff357d2e0001a0997a1_Indiscreet_1958/subHD/20200421_071515/hls/1392352-2126919/en/en.m3u8_0000000000.vtt
https://siloh.pluto.tv/c6009f_pluto/clip/5e9efff357d2e0001a0997a1_Indiscreet_1958/subHD/20200421_071515/hls/2126920-2667418/en/en.m3u8_0000000000.vtt
https://siloh.pluto.tv/c6009f_pluto/clip/5e9efff357d2e0001a0997a1_Indiscreet_1958/subHD/20200421_071515/hls/2667419-3070821/en/en.m3u8_0000000000.vtt
https://siloh.pluto.tv/c6009f_pluto/clip/5e9efff357d2e0001a0997a1_Indiscreet_1958/subHD/20200421_071515/hls/3070822-3492034/en/en.m3u8_0000000000.vtt
https://siloh.pluto.tv/c6009f_pluto/clip/5e9efff357d2e0001a0997a1_Indiscreet_1958/subHD/20200421_071515/hls/3492035-3973349/en/en.m3u8_0000000000.vtt
https://siloh.pluto.tv/c6009f_pluto/clip/5e9efff357d2e0001a0997a1_Indiscreet_1958/subHD/20200421_071515/hls/3973350-4366659/en/en.m3u8_0000000000.vtt
https://siloh.pluto.tv/c6009f_pluto/clip/5e9efff357d2e0001a0997a1_Indiscreet_1958/subHD/20200421_071515/hls/4366660-5330164/en/en.m3u8_0000000000.vtt
https://siloh.pluto.tv/c6009f_pluto/clip/5e9efff357d2e0001a0997a1_Indiscreet_1958/subHD/20200421_071515/hls/5330165-end/en/en.m3u8_0000000000.vtt

results in ...

0-710628
710629-1392351
1392352-2126919
2126920-2667418
2667419-3070821
3070822-3492034
3492035-3973349
3973350-4366659
4366660-5330164
5330165-end

These numbers are the beginning and end times in milliseconds for each of the 10 segments

You will need to adjust the offset of the timing on the .vtt files for segments 2 to 10.

[[ss]vegeta]

You will need to adjust the offset of the timing on the .vtt files for segments 2 to 10.

Can you explain a bit more?
Can this be done while downloading or afterwards?
And how?

I think I have a vague idea of what needs to be done, but I don't know how to download the segments separately.

[jack_666]

@[ss]vegeta

First of all I must thank you for all the contributions you have made to help people. You have my respect. Hats off to you.

Here is how I think it can be done.

We have 10 segments each with a different number of subsegments {14,136,146,108,80,84,96,78,192,132}

We will loop 10 times (i_loop) and then have a subloop with times as per the array (j_loop)

For each iteration, we will curl the the appropriate the url

the code should be something like this .....

curl https://siloh.pluto.tv/c6009f_pluto/clip/5e9efff357d2e0001a0997a1_Indiscreet_1958/subHD/20200421_071515/hls/%i_loop_index_name%/en/en.m3u8_%j_loop_index_number%.vtt >> movie_vtt_part%i%

we may need to delete all references to

WEBVTT
X-TIMESTAMP-MAP

which can be done via sed with the global flag.

After this code is completed, we should have the merged 10 parts.

All the above can be done via a script

Next is a manual step. Execute for each part 2 to 10

Open each of the parts 2 to 10 via subtitle edit and use the option "Synchronization" ==> Adjust all times .... ==> Select first line of subtitle file ==> Enter the offset time ==> Select Radio Button "Selected line(s) and forward" ==> Click "Show Later"


Now merge all parts parts.

If you can figure out how to do the time offset via code then the whole process can be done automatically.

One possible way is to capture the time stamps on the .vtt and add the offset time. Do a grep for --> and manipulate the captured data.

[[ss]vegeta]

...

Thanks a lot for the explanation and thanks for noticing my contributions

[doctorm]

I know there is a patch floating around for ffmpeg that fixes webvtt offset, but it has never been implemented and patching/recompiling ffmpeg is above my pay grade. https://gist.github.com/SebiderSushi/bdf8d46d5501f7085d0b27d8a19eb12c
As for the rest of this... I'll have to re-read it a few more times.

[codehound]

Be easier and less time consuming to learn a new language........

[jack_666]

I wrote a script and created the ten files

Open each of the parts 2 to 10 via subtitle edit and use the option "Synchronization" ==> Adjust all times .... ==> Select first line of subtitle file ==> Enter the offset time ==> Select Radio Button "Selected line(s) and forward" ==> Click "Show Later"


Now merge all ten parts.

May need to add WEBVTT at the very beginning of part1

[doctorm]

Wow. Thanks. I have that movie on BD but the release doesn't have subtitles. There are some on the net, but they are terrible; full of errors and timing issues.

This has some issues, most are fixable automatically. Multiple speakers aren't hyphenated, but this is so much better than what there was to work with before.

Edit: I had an idea to try putting the links into m3u8x. I broke it up manually into 10 playlists every time it reset to 0. Simple, and partially successful. I could only get the first playlist to work. The second one ignored en.m3u8_0000000000.vtt and then crashed the program.
I'm sure there's (maybe) a way to make it work with that method that would be simpler than what you did with the script.

[LZAA]

https://mega.nz/file/FLp0HbTA#wPP_Y9lTvoP_Lj2RnN5M2TgnUjBgkpCfMMqGToB3ZTQ

[doctorm]

https://mega.nz/file/FLp0HbTA#wPP_Y9lTvoP_Lj2RnN5M2TgnUjBgkpCfMMqGToB3ZTQ

What did you base the timing on, the offset or just by ear?