* feat(ssa): add guarded ASS \pos positioning for CEA-608 captions
* fix(ssa): correct ASS positioning anchor, validate row adjacency, and clean up variable placement
* fix(ssa): adjust top margin to prevent clipping of top-positioned CEA-608 captions
* ssa: map CEA-608 row+col to ASS coords using FFmpeg safe-area formula and fix \an2→\an7 anchor
* fix: memory leaks and invalid CSS in WebVTT encoder
- Remove 6 unnecessary strdup() calls on string literals in
write_cc_buffer_as_webvtt() — literals are passed directly to
write_wrapped() which takes void*, no heap allocation needed.
This runs in a per-character inner loop and leaked on every
styled subtitle in a broadcast.
- Fix invalid CSS: rgba(0, 256, 0, 0.5) -> rgba(0, 255, 0, 0.5)
CSS color channels are 0-255; 256 is out of range.
- Fix missing free(unescaped) on write-error path in
write_stringz_as_webvtt() — matched the existing pattern on
the adjacent error path which correctly freed both el and unescaped.
Fixes#2154
* fix: move WebVTT changelog entry to unreleased 0.96.7 section
- Add case 4 (23.976f) to both get_scc_fps() and get_scc_fps_internal()
in ccx_encoders_scc.c so --scc-framerate 23.98 produces correct output
- Add "23.98" | "23.976" match arm in parser.rs mapping to value 4
- Add test_scc_framerate_23_98() unit test in parser.rs
- Update --scc-framerate help text to clarify it affects both input
parsing AND output encoding (not input only)
- Add 23.98 to the listed valid values in the help text
Follows up on discussion in #2145 and #2146.
Fix multiple bugs in parse_file(): heap buffer overflow on long lines
(no bounds check on 128-byte buffer), broken EOF detection (fgetc()
return stored in char instead of int), missing NULL check after malloc,
missing null-terminator on accumulated string, and last line silently
dropped if file lacks trailing newline.
Also fix typos in configuration_map[]: FIX_PADDINDG → FIX_PADDING,
INVASTIGATE_PACKET → INVESTIGATE_PACKET.
save_sub_track() was missing two things:
1. No check on the return value of open(). If open() failed,
desc would be -1, and the subsequent write_wrapped() calls
would trigger a fatal error with a confusing message.
2. The file descriptor was never closed at the end of the function,
leaking it on every call. The neighboring save_vobsub_track()
already handles both correctly — this brings save_sub_track()
in line with it.
In save_sub_track(), the length argument for writing timestamp_end
was incorrectly using strlen(timestamp_start) instead of
strlen(timestamp_end). This affected WebVTT, SRT, and ASS/SSA
output paths for Matroska subtitle extraction.
The --mkvlang option previously only supported single ISO 639-2 codes
due to using a Language enum with a fixed list of variants. Extended
codes (like "fre-ca") and multiple codes (like "eng,chi") would panic.
This change introduces MkvLangFilter, a proper type for language
filtering that:
- Validates language codes per BCP 47 specification
- Supports ISO 639-2 (3-letter codes like "eng")
- Supports BCP 47 tags (like "en-US", "zh-Hans-CN")
- Supports comma-separated multiple codes
- Provides clean error messages for invalid input
- Includes comprehensive unit tests
The C code continues to receive the raw string for strstr() matching,
maintaining backward compatibility.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Update version number across all packaging and build files for the
0.96.5 release.
Files updated:
- docs/CHANGES.TXT - Added changelog entry
- src/lib_ccx/lib_ccx.h - VERSION define
- linux/configure.ac - AC_INIT version
- mac/configure.ac - AC_INIT version
- OpenBSD/Makefile - V variable
- package_creators/PKGBUILD - pkgver
- package_creators/ccextractor.spec - Version
- package_creators/debian.sh - VERSION
- packaging/chocolatey/ccextractor.nuspec - version
- packaging/chocolatey/tools/chocolateyInstall.ps1 - URL
- packaging/winget/*.yaml - PackageVersion and URLs
Note: SHA256 checksums in chocolatey and winget files will need to be
updated after the MSI is built.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Document all changes since 0.96.2 including:
- VOBSUB subtitle extraction for MP4 and MKV files
- Native SCC input file support
- SCC output improvements (frame rate, styled PAC codes)
- Various bug fixes for timing, builds, and OCR
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Add docs/VOBSUB.md explaining the VOBSUB extraction workflow
- Add tools/vobsubocr/Dockerfile for building subtile-ocr OCR tool
- Document how to convert VOBSUB (.idx/.sub) to SRT using OCR
The Dockerfile uses subtile-ocr (https://github.com/gwen-lg/subtile-ocr),
an actively maintained fork of vobsubocr with better accuracy.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
