[PR #148] Attempt to improve mp4 detection #1038

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claunia · 2026-01-29T16:58:32Z

claunia commented

2026-01-29 16:58:32 +00:00

Original Pull Request: https://github.com/CCExtractor/ccextractor/pull/148

State: closed
Merged: Yes

This fix is based on gpacs' mp4 detecition "gf_isom_probe_file" function
there was a typo in mp4 detection algorithm 'feee'->'free'
I had also added 'wide' box to mp4 detection algorithm, because it could also appear in the beginning of the file
I haven't found any description of 'jP ' box, so it was not included in this fix
Hope this fix will slightly increase true positive rate of mp4 detection.

**Original Pull Request:** https://github.com/CCExtractor/ccextractor/pull/148 **State:** closed **Merged:** Yes --- This fix is based on gpacs' mp4 detecition "gf_isom_probe_file" function there was a typo in mp4 detection algorithm 'feee'->'free' I had also added 'wide' box to mp4 detection algorithm, because it could also appear in the beginning of the file I haven't found any description of 'jP ' box, so it was not included in this fix Hope this fix will slightly increase true positive rate of mp4 detection.

claunia added the pull-request label 2026-01-29 16:58:32 +00:00

claunia referenced this issue

2026-01-29 17:18:49 +00:00

[PR #1038] [MERGED] Add support for 4.0 tesseract #1839

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Reference: starred/ccextractor#1038