[PROPOSAL] Unable to extract subtitles from DVB video samples when build using cmake by passing -DWITH_FFMPEG=ON flag #429

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claunia · 2026-01-29T16:43:46Z

claunia commented

2026-01-29 16:43:46 +00:00

Originally created by @krushanbauva on GitHub (May 29, 2018).

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

CCExtractor version (using the --version parameter preferably) : X.X

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.
I absolutely love CCExtractor, but have not contributed previously.
[x ] 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? [ ] Windows - [x ] Linux - [ ] Mac
What were the used arguments? -autoprogram

**Video links (replace text below with your links) **
https://drive.google.com/open?id=0B_61ywKPmI0TdTdSTi1iN251WHM

Additional information

Unable to extract subtitles from DVB video samples.

This occurs if I build ccextractor using cmake by passing the -DWITH_FFMPEG=ON flag
Exact build steps :

If I build without the -DWITH_FFMPEG=ON flag, ccextractor is able to extract the subtitles

PS: Make sure you set an alert in GitHub so you get notifications about your ticket. We may need to ask questions and we do everything inside GitHub's system.

Originally created by @krushanbauva on GitHub (May 29, 2018). Please prefix your issue with one of the following: [BUG], [PROPOSAL], [QUESTION]. CCExtractor version (using the --version parameter preferably) : **X.X** **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. - [ ] I absolutely love CCExtractor, but have not contributed previously. - [x ] 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? [ ] Windows - [x ] Linux - [ ] Mac - What were the used arguments? `-autoprogram` **Video links (replace text below with your links) ** https://drive.google.com/open?id=0B_61ywKPmI0TdTdSTi1iN251WHM **Additional information** Unable to extract subtitles from DVB video samples. ![screenshot from 2018-05-29 15-32-00](https://user-images.githubusercontent.com/31391329/40652684-918fceee-6356-11e8-9c63-5ac39cf71c64.png) This occurs if I build ccextractor using cmake by passing the -DWITH_FFMPEG=ON flag Exact build steps : ![screenshot from 2018-05-29 15-34-05](https://user-images.githubusercontent.com/31391329/40652907-43752be0-6357-11e8-9dc1-de8a91e48665.png) If I build without the -DWITH_FFMPEG=ON flag, ccextractor is able to extract the subtitles ![screenshot from 2018-05-29 15-46-47](https://user-images.githubusercontent.com/31391329/40653035-8de80760-6357-11e8-850b-b87a67e3bbff.png) PS: Make sure you set an alert in GitHub so you get notifications about your ticket. We may need to ask questions and we do everything inside GitHub's system.

claunia added the difficulty: easy GSoC-related labels 2026-01-29 16:43:46 +00:00

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Reference: starred/ccextractor#429