[PR #974] [IMPROVEMENT] Update libGPAC #1791

New Issue

claunia · 2026-01-29T17:18:33Z

claunia commented

2026-01-29 17:18:33 +00:00

Original Pull Request: https://github.com/CCExtractor/ccextractor/pull/974

State: closed
Merged: Yes

Please prefix your pull request with one of the following: [FEATURE] [FIX] [IMPROVEMENT].

In raising this pull request, I confirm the following (please check boxes):

I have read and understood the contributors guide.
I have checked that another pull request for this purpose does not exist.
I have considered, and confirmed that this submission will be valuable to others.
I accept that this submission may not be used, and the pull request closed at the will of the maintainer.
I give this submission freely, and claim no ownership to its content.

My familiarity with the project is as follows (check one):

I am an active contributor to CCExtractor.

We use libGPAC for all our MP4 operations and, this commit updates it to the latest version.

All previous changes to the original library were restored post straight file updation and bugs have been removed.

concerns #961

The updated libGPAC supports the file present in the referenced issue but, unfortunately, the new library is detecting that there are no subtitles in the file.

change severity: very high

**Original Pull Request:** https://github.com/CCExtractor/ccextractor/pull/974 **State:** closed **Merged:** Yes --- Please prefix your pull request with one of the following: **[FEATURE]** **[FIX]** **[IMPROVEMENT]**. **In raising this pull request, I confirm the following (please check boxes):** - [X] I have read and understood the [contributors guide](https://github.com/CCExtractor/ccextractor/blob/master/.github/CONTRIBUTING.md). - [X] I have checked that another pull request for this purpose does not exist. - [X] I have considered, and confirmed that this submission will be valuable to others. - [X] I accept that this submission may not be used, and the pull request closed at the will of the maintainer. - [X] I give this submission freely, and claim no ownership to its content. **My familiarity with the project is as follows (check one):** - [X] I am an active contributor to CCExtractor. --- We use libGPAC for all our MP4 operations and, this commit updates it to the latest version. All previous changes to the original library were restored post straight file updation and bugs have been removed. concerns #961 The updated libGPAC supports the file present in the referenced issue but, unfortunately, the new library is detecting that there are no subtitles in the file. ![screenshot from 2018-04-20 02-05-12](https://user-images.githubusercontent.com/32812320/39016900-6767e27c-443f-11e8-8045-ceca55ae90f0.png) **change severity:** *very high*

claunia added the pull-request label 2026-01-29 17:18:33 +00:00

claunia referenced this issue

2026-01-29 17:22:36 +00:00

[PR #1791] [MERGED] fix(scc): Always emit position codes at start of caption (fixes #1776) #2525

claunia referenced this issue

2026-01-29 17:22:37 +00:00

[PR #1791] fix(scc): Always emit position codes at start of caption (fixes #1776) #2529

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