the option "Burned into video (Forced Subtitles Only)" doesn't work in dual language audio

[maravento]

Problem Description

handbrake does not embed forced subtitles in dual language audio
For example, a video (mkv) that contains two audios (English and Spanish), but both audios include Japanese parts and handbrake does not detect this and does not activate the forced subtitles in the output video, in the parts where Japanese is spoken (which if does the original mkv video)

Encoding parameters:

Activity Log, Crash Log or any other details

no crash

What Operating System are you running?

ubuntu 22.04

What version of HandBrake are you running?

1.5.1

Where did you download HandBrake from?

handbrake.fr

[maravento]

workaround: give a name to the forced subtitle track to be able to select the subtitles manually in the player

[sr55]

Can you please provide the log of the encode.

[maravento]

Install: sudo flatpak install flathub fr.handbrake.ghb

Video log: /home/user/.var/app/fr.handbrake.ghb/config/ghb/EncodeLogs/

https://pastebin.com/tsPGRGxd

Main log: /home/user/.var/app/fr.handbrake.ghb/config/ghb/Activity.log.2

https://pastebin.com/kZAf0KGc

[maravento]

another example: mkv with dual audio (english and spanish) with forced subtitles in spanish (included in the mkv file), with parts spoken in arabic

In this case, when handbrake is going to encode it from mkv to mp4 or mkv to mkv and then I play the output video (with any player like vlc or similar or smart tv), the forced subtitles don't appear and workaround doesn't work in this case

summary: the option "Burned into video (Forced Subtitles Only)" doesn't work

[sr55]

Your encode log shows you've only got a subtitle search pass there and no suitable tracks are available for it.

Use the "Add" button instead and select the track you want.

Naming is optional but it can help identify the track in the player.

[maravento]

solved