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[FIX] Fix minor memory leak in OCR code (#1206)

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* ocr: Fix minor memory leak

Detected by Valgrind:

==1203168== 2,880 bytes in 57 blocks are definitely lost in loss record 3 of 4
==1203168==    at 0x483877F: malloc (vg_replace_malloc.c:309)
==1203168==    by 0x51ADBEE: strdup (in /usr/lib/libc-2.30.so)
==1203168==    by 0x24D1F8: ocr_bitmap (ocr.c:569)
==1203168==    by 0x24E25B: ocr_rect (ocr.c:907)
==1203168==    by 0x284832: write_dvb_sub (dvb_subtitle_decoder.c:1665)
==1203168==    by 0x284B7A: dvbsub_handle_display_segment (dvb_subtitle_decoder.c:1720)
==1203168==    by 0x285024: dvbsub_decode (dvb_subtitle_decoder.c:1828)
==1203168==    by 0x2406AF: process_data (general_loop.c:648)
==1203168==    by 0x2416D0: general_loop (general_loop.c:1025)
==1203168==    by 0x1AC89A: api_start (ccextractor.c:214)
==1203168==    by 0x16EC03: main (ccextractor.c:536)

* changes: Document OCR memory leak fix
This commit is contained in:
kdrag0n 2020-01-21 08:19:19 -08:00 committed by Carlos Fernandez Sanz
parent a0b4e389f9
commit 19de49763a
2 changed files with 2 additions and 0 deletions
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1
docs/CHANGES.TXT
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@ -21,6 +21,7 @@
- Fix: Change inet_ntop to inet_ntoa for Windows XP compatibility
- FIX: Added an option to disable timestamps for WebVTT (In response to issue #1127)
- FIX: Add FT_Done_Face to destroy face objects after they're used
- Fix: Fixed a small OCR memory leak
0.88 (2019-05-21)
-----------------

1
src/lib_ccx/ocr.c
View File

@ -565,6 +565,7 @@ char* ocr_bitmap(void* arg, png_color *palette,png_byte *alpha, unsigned char* i
memset(text_out,0,strlen(text_out_copy)+strlen(substr)+1);
strcpy(text_out,substr);
strcpy(text_out+strlen(substr),text_out_copy);
free(text_out_copy);
written_tag = 1;
}
free(substr);