ccextractor icon indicating copy to clipboard operation
ccextractor copied to clipboard

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

Open unicode45 opened this issue 5 years ago • 3 comments

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.
  • [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 and in opened 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,

unicode45 avatar Jan 13 '19 13:01 unicode45

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

MatejMecka avatar Jan 20 '19 18:01 MatejMecka

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 avatar Jan 20 '19 18:01 MatejMecka

@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 avatar Jan 21 '19 13:01 unicode45