MattJackson
6784829856
- 12-23 MB/s read speeds, kernel transfer limit auto-detection - Full custom firmware init pipeline (all 10 handlers) - MPLS parser fixes (PGS language offset, secondary streams) - 206 profiles with full per-drive data
64 lines
3.3 KiB
Markdown
64 lines
3.3 KiB
Markdown
# Changelog
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## 0.5.0 (2026-04-09)
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### Read pipeline — 5x speed improvement
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- **Kernel transfer limit detection**: auto-detect `max_hw_sectors_kb` via sysfs, resolve sg→block device. Previously hardcoded to 510 sectors (1MB) which exceeded the 120KB kernel limit, causing all reads to error and fall back to 6KB reads at 4.8 MB/s. Now auto-tunes to 48 sectors (96KB) or whatever the device supports.
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- **Result: 12.5 MB/s sustained, 23 MB/s peak** (was 4.8 MB/s)
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### LibreDrive — full init pipeline
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- **All 10 ARM handlers translated**: unlock, firmware upload (A: WRITE_BUFFER, B: MODE SELECT), calibrate (256 zones), register reads, status, probe, set_read_speed, keepalive, timing
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- **Cold boot firmware upload**: WRITE_BUFFER 1888B (A variant) or MODE SELECT 2496B (B variant) proven on hardware
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- **Speed calibration**: 256+ disc surface probes, 64-entry speed table, triple SET_CD_SPEED
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- **Platform trait locked down**: `pub(crate)`, 3 methods only (init, set_read_speed, is_ready)
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- **Init guard**: prevents double-init, signature mismatch aborts early
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### MPLS parser fixes
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- **PGS in audio slots**: subtitle language read at correct offset (was truncated: "ng " → "eng")
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- **Secondary PG entries**: n_pip_pg loop added for correct STN position tracking
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- **Secondary stream types**: stream_type 5 (sec audio), 6 (sec video), 7 (DV EL) attribute parsing
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- **Empty stream filter**: coding_type 0x00 entries (padding) no longer appear as "Unknown(0)"
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### Profiles
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- **206 profiles with full per-drive data**: ld_microcode (base64), all CDBs, speed tables, signatures
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- **Automated pipeline**: `sdf_unpack --profiles` → profiles.json (no manual merging)
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## 0.4.0 (2026-04-07)
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### Labels — complete rewrite
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- **Detect-then-parse architecture**: each BD-J authoring format has its own parser module with `detect()` and `parse()` functions. Drop in a new parser with one line in the registry.
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- **5 format parsers**: Paramount (`playlists.xml`), Criterion (`streamproperties.xml`), Pixelogic (`bluray_project.bin`), Warner CTRM (`menu_base.prop` / `language_streams.txt`), shared label vocabulary (`vocab.rs`)
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- **Raw disc data principle**: label data passes through as-is from disc. Only BD-standard codec identifiers (MLP, AC3, DTS) are mapped to display names. Unknown authoring tool codes (csp, eda, cf) pass through raw.
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- **`variant` field**: replaces `region` — language dialect codes from authoring tools, not BD spec regions
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- Removed: old `jar` module (superseded by labels)
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- Removed: dead label apply functions from disc.rs
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### Drive
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- **`DriveSession::eject()`**: sends PREVENT ALLOW MEDIUM REMOVAL then START STOP UNIT. Works reliably after raw mode unlock.
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- **`DiscRegion` enum**: Free, BluRay(A/B/C), Dvd(1-8). UHD always region-free.
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### Capture
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- **Fixed sector range collection**: captures ALL files on disc (only skips STREAM/ video files and >50MB). Previously skipped BACKUP/, DUPLICATE/, and files >10MB which missed JAR content.
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## 0.3.1
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- Labels module: 4 disc file parsers for stream labels
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- Simplified labels API
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## 0.3.0
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- Initial public release
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- SCSI transport (Linux SG_IO, macOS IOKit)
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- UDF 2.50 filesystem reader
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- MPLS/CLPI parsers with full STN support
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- Drive identification + profile matching
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- 206 bundled drive profiles
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- AACS 1.0 decryption (VUK + unit keys)
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