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[BUG] Could not extract subtitle from Korean cable TV program. #477

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opened 2026-01-29 16:44:57 +00:00 by claunia · 4 comments
claunia commented 2026-01-29 16:44:57 +00:00
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Originally created by @unicode45 on GitHub (Jan 13, 2019).

Please prefix your issue with one of the following: [BUG], [PROPOSAL], [QUESTION].

CCExtractor version (using the --version parameter preferably) : 0.87

In raising this issue, I confirm the following (please check boxes, eg [X] - and delete unchecked ones):

  • I have read and understood the contributors guide.
  • I have checked that the bug-fix I am reporting can be replicated, or that the feature I am suggesting isn't already present.
  • I have checked that the issue I'm posting isn't already reported.
  • I have checked that the issue I'm porting isn't already solved and no duplicates exist in closed issues and in opened issues
  • I have checked the pull requests tab for existing solutions/implementations to my issue/suggestion.
  • I have used the latest available version of CCExtractor to verify this issue exists.

My familiarity with the project is as follows (check one, eg [X] - and delete unchecked ones):

  • I have never used CCExtractor.
  • I have used CCExtractor just a couple of times.
  • I absolutely love CCExtractor, but have not contributed previously.
  • I am an active contributor to CCExtractor.

Necessary information

  • Is this a regression (did it work before)? [X] NO | [ ] YES - please specify the last known working version
  • What platform did you use? [X] Windows - [X] Linux - [ ] Mac
  • What were the used arguments? -svc all[EUC-KR]

Video links (replace text below with your links)
https://drive.google.com/open?id=178d2zf-JZguJc7rU5n80FzophufaW_Rb

Additional information

I could not extract Korean subtitle from these kind of cable TV programs although my TV can display subtitles properly.
I've also read #713 and #805 issues and also check the file with mediainfo(it contains PAT/PMT info) Could you check the recorded file?

Thanks,

Originally created by @unicode45 on GitHub (Jan 13, 2019). Please prefix your issue with one of the following: [BUG], [PROPOSAL], [QUESTION]. CCExtractor version (using the --version parameter preferably) : **0.87** **In raising this issue, I confirm the following (please check boxes, eg [X] - and delete unchecked ones):** - [X] I have read and understood the [contributors guide](https://github.com/CCExtractor/ccextractor/blob/master/.github/CONTRIBUTING.md). - [X] I have checked that the bug-fix I am reporting can be replicated, or that the feature I am suggesting isn't already present. - [X] I have checked that the issue I'm posting isn't already reported. - [X] I have checked that the issue I'm porting isn't already solved and no duplicates exist in [closed issues](https://github.com/CCExtractor/ccextractor/issues?q=is%3Aissue+is%3Aclosed) and in [opened issues](https://github.com/CCExtractor/ccextractor/issues) - [X] I have checked the pull requests tab for existing solutions/implementations to my issue/suggestion. - [X] I have used the latest available version of CCExtractor to verify this issue exists. **My familiarity with the project is as follows (check one, eg [X] - and delete unchecked ones):** - [ ] I have never used CCExtractor. - [ ] I have used CCExtractor just a couple of times. - [X] I absolutely love CCExtractor, but have not contributed previously. - [ ] I am an active contributor to CCExtractor. **Necessary information** - Is this a regression (did it work before)? [X] NO | [ ] YES - *please specify the last known working version* - What platform did you use? [X] Windows - [X] Linux - [ ] Mac - What were the used arguments? `-svc all[EUC-KR]` **Video links (replace text below with your links)** https://drive.google.com/open?id=178d2zf-JZguJc7rU5n80FzophufaW_Rb **Additional information** I could not extract Korean subtitle from these kind of cable TV programs although my TV can display subtitles properly. I've also read #713 and #805 issues and also check the file with mediainfo(it contains PAT/PMT info) Could you check the recorded file? Thanks,
claunia added the difficulty: medium label 2026-01-29 16:44:57 +00:00
claunia commented 2026-01-29 16:44:57 +00:00
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@MatejMecka commented on GitHub (Jan 20, 2019):

VLC seems to find 4 Closed Captions but I wasn't able to play them

@MatejMecka commented on GitHub (Jan 20, 2019): VLC seems to find 4 Closed Captions but I wasn't able to play them
claunia commented 2026-01-29 16:44:58 +00:00
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@MatejMecka commented on GitHub (Jan 20, 2019):

From a Quick run in debug mode CCExtractor reports unrecognized user data on all caption blocks i've seen so far:

00000000 | 64 08 84 08 02 0E 02 1B 02 12 FF FF FF FF FF FF  | d ?       ??????
00000016 | FF FF FF FF FF FF                                | ??????

Feel free to dig more :)

@MatejMecka commented on GitHub (Jan 20, 2019): From a Quick run in debug mode CCExtractor reports unrecognized user data on all caption blocks i've seen so far: ```Unrecognized user data: 00000000 | 64 08 84 08 02 0E 02 1B 02 12 FF FF FF FF FF FF | d ? ?????? 00000016 | FF FF FF FF FF FF | ?????? ``` Feel free to dig more :)
claunia commented 2026-01-29 16:44:58 +00:00
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@unicode45 commented on GitHub (Jan 21, 2019):

@MatejMecka Thanks for your replay.

VLC could not display it.
Altough Mediainfo says there's no data on EIA-708, ffprobe could detect eia_608 (Stream #0:1: Subtitle: eia_608) on it.

According to eia/cea-608-b, Korean Data channel 1 and 2 is a bit different. Please check 'Table 4 Special Assignments' at page 17 below.
http://jackyjung.tistory.com/attachment/499e14e28c347DB.pdf

Thanks,

@unicode45 commented on GitHub (Jan 21, 2019): @MatejMecka Thanks for your replay. VLC could not display it. Altough Mediainfo says there's no data on EIA-708, ffprobe could detect eia_608 (Stream #0:1: Subtitle: eia_608) on it. According to eia/cea-608-b, Korean Data channel 1 and 2 is a bit different. Please check 'Table 4 Special Assignments' at page 17 below. http://jackyjung.tistory.com/attachment/499e14e28c347DB.pdf Thanks,
claunia commented 2026-01-29 16:44:58 +00:00
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@cfsmp3 commented on GitHub (Dec 17, 2025):

@unicode45 Do you happen to have the file still around? If yes, can you share it?

@cfsmp3 commented on GitHub (Dec 17, 2025): @unicode45 Do you happen to have the file still around? If yes, can you share it?
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