[BUG] Regression for DVB sample using OCR #629

New Issue

claunia · 2026-01-29T16:49:30Z

claunia commented

2026-01-29 16:49:30 +00:00

Originally created by @canihavesomecoffee on GitHub (May 26, 2021).

CCExtractor version: current master (5b29ef281a)

In raising this issue, I confirm the following:

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.
I have ticked all the boxes in this section and to prove it I'm deleting the section completely to remove boilerplate text.

Necessary information

Is this a regression (i.e. did it work before)? YES
What platform did you use? Linux
What were the used arguments? Refer to https://sampleplatform.ccextractor.org/regression/test/238/view

Video links

See SP for sample

Additional information

The SP reports this regression, and manual verification (both using regular build and debug build) result in a segfault.

Stack from GDB:

#0  0x00007ffff76f4c69 in free () from /usr/lib/libc.so.6
#1  0x0000555555602e97 in freep (arg=0x555555993c90) at ../src/lib_ccx/ccx_common_common.c:45
#2  0x00005555555c190a in dinit_write (wb=0x555555993c80) at ../src/lib_ccx/output.c:15
#3  0x00005555555dba1e in dinit_output_ctx (ctx=0x5555559b7cf0) at ../src/lib_ccx/ccx_encoders_common.c:759
#4  0x00005555555dc2d2 in dinit_encoder (arg=0x7fffffffd3e0, current_fts=0xbb98) at ../src/lib_ccx/ccx_encoders_common.c:922
#5  0x00005555555ff6b8 in dinit_libraries (ctx=0x7fffffffd438) at ../src/lib_ccx/lib_ccx.c:237
#6  0x000055555558de6a in api_start (api_options=...) at ../src/ccextractor.c:415
#7  0x000055555558dfbf in main (argc=0x5, argv=0x7fffffffddd8) at ../src/ccextractor.c:463

Generated output:
out.txt

Originally created by @canihavesomecoffee on GitHub (May 26, 2021). CCExtractor version: current master (5b29ef281a02319e3597dc1bbe3f3ac18fbaa500) # In raising this issue, I confirm the following: - [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. - [x] I have ticked all the boxes in this section and to prove it I'm deleting the section completely to remove boilerplate text. # Necessary information - Is this a regression (i.e. did it work before)? YES - What platform did you use? Linux - What were the used arguments? Refer to https://sampleplatform.ccextractor.org/regression/test/238/view # Video links * See SP for sample # Additional information The SP reports this regression, and manual verification (both using regular build and debug build) result in a segfault. Stack from GDB: ``` #0 0x00007ffff76f4c69 in free () from /usr/lib/libc.so.6 #1 0x0000555555602e97 in freep (arg=0x555555993c90) at ../src/lib_ccx/ccx_common_common.c:45 #2 0x00005555555c190a in dinit_write (wb=0x555555993c80) at ../src/lib_ccx/output.c:15 #3 0x00005555555dba1e in dinit_output_ctx (ctx=0x5555559b7cf0) at ../src/lib_ccx/ccx_encoders_common.c:759 #4 0x00005555555dc2d2 in dinit_encoder (arg=0x7fffffffd3e0, current_fts=0xbb98) at ../src/lib_ccx/ccx_encoders_common.c:922 #5 0x00005555555ff6b8 in dinit_libraries (ctx=0x7fffffffd438) at ../src/lib_ccx/lib_ccx.c:237 #6 0x000055555558de6a in api_start (api_options=...) at ../src/ccextractor.c:415 #7 0x000055555558dfbf in main (argc=0x5, argv=0x7fffffffddd8) at ../src/ccextractor.c:463 ``` Generated output: [out.txt](https://github.com/CCExtractor/ccextractor/files/6547970/out.txt)