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ChangeLog
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current:
* Codabar reliability enhancements
- fix missing check
- require minimum quality
- bump default uncertainty
* tweak Codabar bar/space ratio validation
* finish Codabar support for python, perl, java and iPhone interfaces
- reduce Codabar uncertainty to minimum
* add core support for Codabar symbology
- TBD: python, perl, java and iPhone interfaces
* fix v4l config and build variations (bug #3348888)
- thanks to jarekczek for reporting this!
- NB v4l1 removed from kernel as of 2.6.38
* fix missing python thread initialization (bug #3349199)
- thanks to jarekczek for reporting this problem!
* fix missing configure check for Python.h (bug #3092663)
- thanks to Zoltan Kovacs for reporting this problem!
* fix C++ wrapper missing Symbol.quality (bug #3076524)
- thanks to Rudy Melli for pointing this out!
* fix C++ wrapper bugs (bug #3396068)
- thanks to anotheruser1 for reporting this!
- add new C++ wrapper test
* fix avoid compositing ISBN10 data
* add support for GraphicsMagick as ImageMagick alternative
* mention xmlto in HACKING (patch #3297039)
- thanks to jarekczek for the patch!
* disable addons by default until synchronization with main symbol is working
* fix image scanner min quality filtering
* fix i25 buffer overrun corner case
* fix EAN addon enables
* fix zbarimg to accept autodetected stdin (lone dash)
* fix Qt 4.6.3 compilation error (patch #3178244)
- thanks to hrhristov for the patch!
* add Python Processor support for request_size interface
* fix Python Processor support for GIL, allowing asynchronous scanning
* fix jpeg decoder skip handling
- thanks to jarekczek for the patch!
* rename dprintf macro to avoid conflicts (patch #3128538)
- thanks to maurochehab for the patch!
* add support for EAN/UPC 2 and 5 digit add-on symbols
- deprecate original, unfinished add-on APIs
- add self-checking to test_decode
* fix support for GS1 AIs
- thanks to jockusch for a patch!
- add decoder/symbol "modifier" flags and config read access
- set flags or emit GS appropriately for Code 128 FNC1
- add iphone, java, perl, python bindings for modifiers and configs
* add support for Code 93 symbology
* add video size request to (Py)GTK widget (req #3034522)
- thanks to Jerome Charaoui for the patch!
* add support for GS1 DataBar Expanded (RSS Expanded) symbology
* add language bindings for DataBar
* add preliminary support for GS1 DataBar (RSS-14) symbology
* enhance decoder reliability (EAN, Code 39, Code 128)
- enhance decoder test
* fix documentation of command exit codes (bug #3017322)
* fix C++ video callback bug
- add C and C++ processor examples
* add per-symbology cache consistency
- reliable symbologies decode immediately by default
- no more need to disable cache with video
- also fix crop bugs w/video scanning
* add support for scanning partial images (cropping)
- update c++, python, perl, java bindings and tests
* fix couple of leaks
* remove doc hints about GFDL (bug #3004411)
- apply LGPL to API docs
* relax Code 39 width ratio checks
* core library portability improvements
- remove some unnecessary C99 syntax
- add configure checks for errno
- enhance C++ Symbol interface
* adjust Python module README (add examples and note DLL in path)
* fix QR Code missing from man pages (bug #2969857)
* cleanup decoder assertions and locking (bug #2966916)
* add Java interface to library via JNI
- add Java tools and JNI build tests to configure
- fix compiler warnings from binary output changes
* fix output of binary data in zbarimg and zbarcam
- thanks to fukuchi for a patch!
- add base64 format for binary xml output
* add coarse symbol orientation information (patch #2913094)
- thanks to Anssi for a patch!
- add decode direction feedback to decoder
- update C++, Python, Perl and ObjC wrappers
- add orientation to test suites
* fix inconsistent fourcc endian handling bugs (bug #2918994)
- thanks to jdccdevel for a patch!
- add fourcc conversion and parse interfaces to zbar.h
* report QR immediately for video (no inter-frame consistency check)
* add python distutils build infrastructure
version 0.10:
* hotfix add MinGW import lib to Windows installer
* attempt fix for Qt4 < 4.4
* release updates
- fix perl Processor init without video
* fix window closed notification during events
- add read_one example, fix xs compiler warnings, update perl docs
* add result query interfaces to image scanner and processor
- move result filtering into image scanner (from user)
- abort output blockers when window closed
* Windows updates
- update installer and README for distribution of dependency libraries
- fix applications to use binary output for xml and raw modes
* add regression tests to makefile
* cleanup warnings from newer gcc versions
* fix excessive i25 QZ checks
* add regression script
- add zbarimg xml output for every source (even empty)
- add edge detection to svg debug overlay
* image scanner cleanup and minor performance enhancements
* bug hunt and stability improvements
- fix broken processor locks
- fix X connection polling, revert previous separate thread workaround
- refuse to resize windows larger than screen size
- fix window output scaling - preserve image aspect ratio, adjust overlay
- fix window redraw
- fix crash on Xv image creation failure (still need XImage fallback)
- clean up zbarimg exit cases (last image window close, missing decodes)
* always use separate video thread when threads enabled (even v4l2)
* add configure check for features.h
* overlay enhancements
- add fps to overlay
- add overlay control to processor
- add windows overlay drawing
* tweak linear code position info
* trim deep qrcode hierarchy
* fix zero length symbol data
* fix QR structured append result handling
* cleanup SVG debug dump (partial)
- some QR integration API cleanup
* extract explicit result container, separate from image
- remove (broken/tmp) converted image result sharing
- add explicit symbol recycle API, update processor/widgets to use
- cleanup and update C++ API
- update Python/Perl APIs
- fix broken and add new Python/Perl tests
* cleanup QR result integration
- add hierarchy to symbol results
- extract symbols during text decode, preserving position and structure
- outline QR symbols in window overlay
- tmp fix converted image result propagation
* factor image scanner cache and apply to QR
- fix image scanner handler called once per-image (vs every decode)
* QZ and clustering fixes to QR integration
- remove qr_finder QZ checks
- decrease center clustering threshold from 1/3 to 1/5 of length
- add img_scanner svg debug output
- manually add config.rpath to workaround broken autofoo
* finish initial integration of QR Code reader from maemo-barcode project
* zbar-side updates for QR Code integration
- add linear scanner position interface
- add QR finder position feedback
- integrate QR Code reader with img_scanner
- refactor some symbol/image interaction
- change default scanner density to 1
- add iconv to build infrastructure
* initial hooks for QR Code, first pass at finder
* fix broken builds with --disable-pthread
version 0.9:
* hotfix configure check for Wand as well as MagickWand (bug #2848437)
* hotfix trim extraneous MagickWand calls (bug #2848445)
* release updates
* fix uninitialized member in Qt widget (bug #2844846)
* move image conversion out of image scanner up to higher levels
(preparation for library split)
* add symbol quality metric and image scanner position config
- update python, perl and docs
* compatibility fixes
- work around ImageMagick API breakages
- fix some OS X compile issues
* Qt widget cleanup
- handle video device set before window attached
- prevent exceptions from escaping event handlers
* more Qt window creation hook fixes
- NB may still cause problems if video is opened before window is visible
* finish fix for Qt init ordering (bug #2844846)
* potential fix for display init ordering (bug #2844846)
- new workaround for filtering bad EAN results in the image scanner
* more testing, fixes and cleanup
- fix v4l1
- fix/add null processor interface
* change default image scanner density to 1x1
- random cleanup, vfw hang, quit key
- fix scan_image example MSVC project
- windows installer tweaks
* add zbarcam to windows installer
* major restructuring to improve platform abstraction
- add lock, thread and timer abstractions
- migrate specific notification locks to platform independent layer
- fixes to vfw capture interface
- fix window format conversion issues
- fix some broken configure checks
- zbarcam working in windows!
* fix symbol leaks (bug #2820658)
- add symbol reference counting
* add support for binary symbol data
* initial VFW video support
- mostly working with uvc driver, broken for others
- factor out common video buffer handling
- fix processor to destroy window *before* video (ref TODO)
- use /dev/video* VFW pseudo-devices
- windows configure skip non-windows checks
- prep for platform refactoring
* fix zbarimg b&w format handling
* fix scan (image) boundary QZ handling (bug #2807538)
- add linear scanner manual flush API
- linear scanner always starts/ends w/a space of width 0
- remove artificial image scanner border
- decoders special case 0 width space for QZ checks
- add missing Code 128 leading QZ check
* fix Code39 max ICS checks (bug #2807447)
- add decoder lock owner tracking (debug)
- update dbg_scan to match img_scanner
* first pass installer
- add version and icon resources for libzbar, zbarimg
* zbarimg working in windows
- switch to StretchDIBits over DrawDib
- refactor some window drawing code to remove redundancies
- make refcounts thread safe
- clean up alloc/free bugs
* convert zbarimg to C (cross compiled C++ cannot run w/native libraries)
- fix DrawDib image width granularity
- fix window resize dimensions to include decorations
- images still inverted, otherwise zbarimg now "working" in windows
* refactor processor implementation to support cross-platform
- first pass windows processor (before debugging)
- make processor locks reentrant (call APIs from callback)
* initial Windows support for window interface
- currently supports VFW DrawDib interface for image display
(DirectDraw and others TBD)
- also basic processor window creation/manipulation
- Windows configure tests
version 0.8:
* release updates
* add "raw" output option (without symbology prefix) to apps (req #2671863)
* fix Code 39 min length and document min/max configs (bug #2787925)
* fix zbar_image_free_data windows recursion loop (bug #2796277)
* fix uninitialized decoder configs (bug #2800163)
* switchover from subversion to mercurial
version 0.7:
* fix perl MANIFEST
* release updates (version, NEWS, packaging)
* adjust [py]gtk distributed files
* draw new logo (rough, no Xrender yet)
* fix Makefile.am syntax error
* fixup some perl distribution details
* project name change: everything "zebra" becomes "zbar"
* remove old logo
* add first pass python bindings!
* fix perl mortality bug
* add new cfg constants to perl
* fix perl doc handler ref
* fix processor set_active error propagation
* add wiki examples (scan_image.*, processor.*)
* add missing trailing quiet zone checks for ean and code39
* add min/max code length cfg/check for i25,code128,code39,pdf417
* add image scan density API/option
* tweak option parser to be more strict/correct about abbreviations
* add API to force specific video io modes (req #2293955)
* apply patches for more broken driver workarounds (req #2293955)
* fix(?) C++ string to fourcc conversion
* add missing C++ wrappers
* add additional examples to man pages (symbology enable/disable)
* add missing options to man page synopsis
* add missing --xml option to man pages
version 0.6:
* hotfix broken perl install (name change)
* add missing files to distribution
* release updates (version, NEWS, pacakging)
* rename perl module to Barcode::Zebra (fit with existing cpan namespace)
* add perl documentation and example
* add v4l version debug/test override
* add docs for new zebracam prescale option
* add video pre-scaling API/option to video/processor/zebracam (req #2277340)
* add few missing APIs to perl xs wrapper
* fix missing libjpeg #ifdef in convert
* initial support for decoding jpeg images using libjpeg!
* workaround broken v4l2 drivers in USERPTR mode
* have configure double check Magick++ install (bug #2582232)
* update README dependency list
* fix C++ warnings in Processor
* fixes for building DLLs with libtool under MinGW
* automatically remove "processor" layer if poll.h is unavailable
* test_decode portability workarounds
* add config/compile time symbology enables
* add low-level PDF417 decode stage - converts widths to codewords
* add XML output option to zebracam and zebraimg
* add sequence number image attribute, set to frame number by video
* change v4l2 interlaced only drivers to warning instead of hard fail
* workaround broken drivers that return error for V4L2_FIELD_NONE request
* add some initial PDF417 hooks
* first pass perl bindings for Processor, Scanner and Decoder
* fix error propagation double free bug
* add missing APIs: processor userdata and image data length
* fix configure check for v4l2 - thanks to Simon Matter for the patch!
* finish support for UPC-E
* fix zebraimg to scan all pages/frames of a multi-frame input
* fix debian packaging dependencies (bug #2070164)
* *remove* debian directory from distribution (bug #2070164)
* fix inappropriately installed headers and man pages (bug #2055133)
* fix pygtk multiple definition link errors on darwin (bug #2052681)
* fixes to configure for detecting python settings (bug #2052663)
* remove zebrapygtk module link against libpython (bug #2052663)
* add drag and drop support for *images* to Qt widget...unfortunately not
very useful; every application i tried drops uri-refs rather than images
* minor reference documentation updates
version 0.5:
* release updates (version, NEWS, packaging)
* add pkg-config files
* update to latest libtool and new autoconf macros
* cleanup library symbol exports
* remove test programs using internal hooks
* improve portability of some format specifiers
* fix missing stub for --without-x - thanks to Simon Schmeisser for a patch!
* fix --disable-pthread compile errors and warnings
* fix XImage size mismatch background artifacts
* fix new generated file distribution errors
* switch Qt headers to old-style names (investigate possible Qt3 support?)
* add independent ABI versioning for GTK and Qt widget libraries
* reimplement widget internals to support image scanning and
improve locking efficiency
* add image scanning to widgets. including builtin conversions from
toolkit image types: GtkPixbuf and QImage
* add video opened hooks to widgets (improved use model)
* add logo, used when there is nothing better to draw
* add userdata to image object
* fix image reuse cleanup bug
* fix format specifiers in some error messages
* enhance widget tests to support enable/disable and scan from image
* fix broken deallocation assumptions in test_qt
* widget API documentation (still need to hookup gtkdoc, and PyGtk docs)
* API documentation toplevel overview
* update configure summary for new features
* replace all decoder assertions w/non-fatal debug spew (bug #1986478)
* fix glib-genmarshal check
* add first pass of Qt widget!
- test/example in test/test_qt.cpp
- factor video device scan to share among tests
* more C++ integration fixes
- additional Image ref tweaks
- add Video.close() and Window.clear() APIs
* fix missing image scanner handler call
* add dereference operator to C++ Symbol
* add count attribute to C++ Symbol
* fix broken C++ header definitions
* fix broken C++ Image references
* expose internal reference counting interface
* fix window locking bug
* cleanup some minor memory leaks
* convert Code 128 assertions to non-fatal warning spew
* fix single buffer video hang (bug #1984543)
* replace inferred video size assertion with warning message (bug #1984543)
* add first pass of GTK widget!
* add PyGTK widget wrapper
* API change: modify window draw/redraw interface to improve interoperability
with toolkits
- add window locking for thread safety
- zebra_window_draw() no longer actually "draws" anything
=> use window.draw to update the image from video thread
then schedule window.redraw from toolkit GUI thread
* fix missing C++ std lib dependencies
* fix uninitialized handler/userdata bug in decoder
* fix broken Code 128 checksum assertion
* fix video destructor segfault
* fix window destructor Xvideo errors (XID is unsigned...)
* switch configure to use pkg-config to find most dependencies
* API documentation updates
version 0.4:
* release updates (version, NEWS, packaging, examples)
* couple of portability tweaks
* finish format conversion resize cases
* add missing conversions
* fix some broken conversions
* fix some broken redraw and Xv checks
* add decoder configuration API
- only boolean configs currently implemented
- integrate config option parsing w/zebracam and zebraimg
- add config to enable/disable each symbology type
- add optional conversions from EAN-13 to UPC-A, ISBN-10 and ISBN-13
(disabled by default)
- add config to emit/suppress check digit
NB behavior change! check digit is now emitted by default
* related documentation updates
- split common options to a separate entity
* fallback to gettimeofday when POSIX timers are not available
* image format conversion fixes
- fix format size roundoff (NB now rounds *down*)
- add convert and resize API to pad/crop image to specific size
(eg, to handle Xv min/max image size)
NB this is still not implemented for many conversions
* fix window deletion visibility inconsistency
* add couple processor commands
- 'q' to delete window
- 'd' to dump displayed image for debug
* remove problematic includes used for v4l2 configure test
* address compiler portability concerns w/debug print vararg macro
* workaround v4l1_set_format() failed consistency check for broken drivers
- change from error to warning w/more useful message
- calc expected image size using expected value instead of driver value
* add missing example scripts to distribution
* add missing files for Interleaved 2 of 5
* add support for Interleaved 2 of 5 symbology!
- again no check digit option yet
* increase decode window from 8 to 16 bars
- remove Code 39 "extra bar" hack
- add Code 39 quiet zone check
- facilitate Interleaved 2 of 5
* optimize character width calculations for all symbologies
* fix image scanner bug w/lost symbols at end of scan passes
* fix EAN-8 buffer overrun case
* add API doc footer
* add API documentation generated by Doxygen
- markup, cleanup and finish writing header comments
- setup Doxygen config file
* add/fix window GC
* add base support for Code 39 (no check digit or full ASCII options yet)
* cleanup decoder locking
* add support for EAN-8!
version 0.3:
* add interface stub files
* fix wait timeouts
* fix XImage format filtering
* fix several error handling corner cases
* fix c++ error handling
* add missing Window.h
* add better hierarchy to library sources
* build configuration fixes
* portability fixes
* packaging updates
* fix zebracam beeps
* fix some RGB component ordering and XImage format problems
* fix window resize and redraw state problems
* fix EAN testcase in test_decode - thanks to Steffen Kube for the patch!
* add APIs and (hidden) zebracam options to force specific formats for debug
* add example scripts
* documentation updates
* remove implementation of deprecated img_walker
* add XImage formats
- basic support for 16-bit depths
* add some missing rgb format conversions
* add basic overlay
- currently only markers at detected scan locations (needs improved)
* fix memory leak for converted images w/new cleanup semantics
* migrate inter-frame consistency check from old zebracam into image_scanner
- add API to enable/disable/flush result cache
- add API to retrieve cache status from returned symbol
* cleanup user_wait blocking semantics for various state combinations
* fix bug w/v4l1 not unlinking dequeued image
* major restructuring for improved modularity
NB not all changes are are backward compatible!
- modular support for v4l2 falling back to v4l1
- flexible support for more varied image formats (incomplete)
- added reusable abstractions for: an "image" object and associated
metadata, a "video" input object and a "window" output object
- added new "processor" API to wrap everything together, simplifying
trivial application usage (including zebracam and zebraimg)
- removed deprecated "img_walker" interface, completely replaced by
more integrated "image_scanner" (moving toward more image processing)
- updated/added c++ APIs, including improved iterator interfaces
* removed SDL dependency due to various usage incompatibilities
(most notably the inability to embed video window into a widget)
* cleaned up zebracam and zebraimg command line processing (bug #1838535)
* many useful enhancements thanks to proposal by mhirsch45 (req #1759923)
including:
- v4l2 support
- support for UYVY image format
- zebracam cursor hiding
- zebracam audio mute
- command line video device specification,
* significant error handling and debug improvements
* some associated documentation updates
* various new test programs (slowly working toward more formal test suite)
* add missing xlink namespace to dbg_scan generated output (bug #1764188)
* qualify char types as [un]signed to avoid non-portable C ambiguity
- thanks to mhirsch45@users.sf.net and Colin Leroy for the patches!
(bug #1759914)
* add integrated 2D image scanning API
- automatically ties to internal scanner and decoder
- results reported via new symbol API
- deprecated previous, cumbersome img_walker interface
- uses new simpler/faster and denser grid pattern (FIXME add 45 and 135)
- first step toward more sophisticated image processing
* updated zebraimg to use new ImageScanner API
- add initial decode location tracking
* updated zebracam to use new img_scanner API
- extended cache to track multiple symbols per-image
- add initial decode location tracking
- removed scan grid overlay
* add configure check for ImageMagick version >= 6.3.0
* configure dumps ImageMagick, SDL and firefox versions for debug
* add NPAPI plugin stub and build infrastructure
* flush zebracam output after each scanned symbol
* integrate RPM packaging spec file - thanks to V�t Hrachov� for the draft!
(patch #1723536)
* finally add HACKING to distribution/install (bug #1698202)
* add extra documentation files to install (README NEWS INSTALL, etc)
* Debian package patch for 0.2 - thanks to V�t Hrachov�:
- add libsdl1.2-dev as a build dependency
- update automake (>= 1:1.10) as a build dependency
- new package
version 0.2:
* update distribution to include debian packaging
* add consistency checking to zebracam
* add redundant output suppression to zebraimg
* fix couple of Code 128 decode table bugs
* fix reversed Code 128 decode
* add outstanding scanner edge flush to new_scan()
- API change: scanner reset/new_scan() now return scan/decode status
- update zebracam and zebraimg to call this between each walker pass
(interface still needs improvement...)
=> improves in scan results for many cases
* fix dbg_scan filename generation so results go in local directory
* continue Code 128 refinement
- finish character set C decode/expansion
- add per-character validation
- resolve scan direction in separate postprocessing pass before handling
ASCII conversion
- add several img_walker passes parallel to major axis (for long symbols)
- add simple character set C example to test_decode
* promote zebraimg images to TrueColor so colored scan pattern always shows
* more dbg_scan tweaks
* significant scanner improvements
- changed "classic" [-1 0 1] first differential kernel to [-1 1]
to improve minimum edge resolution to single pixel elements
=> still need to do some more research and validate assumptions
- adaptive thresholding fixes
- adjusted filtering for better edge detection
- separate constants out to defines (FIXME add config API?)
* fix EAN-13 secondary determinant decoding
* dbg_scan tweaks to make annotations smaller/more usable
* add get_color() interface to decoder
* annotated zebraimg scan pattern for marginally useful high-level debug
* random include cleanup
* cleanup 64-bit compile warnings in zebraimg (bug #1712504)
* add first-pass partial support for Code 128
- separate out more EAN state from shared state
- internal interface changes
- finish dynamic buffer management
- add shared resource locking
- add Code 128 to test_decode program
=> still needs additional functionality and plenty of debug
=> reading both Code 128 *and* EAN still destabilized
* add diagnostic program test_video to dump more verbose video debug
* incorporate documentation into Debian package
- thanks to V�t Hrachov� for the patch!
* fix VPATH doc builds (requires automake-1.10 and autoconf-2.61)
* build and dist fixes
- suppress documentation rebuilds in distributed sources
* add Debian packaging sources - thanks to V�t Hrachov� for the patch!
* add DocBook template and build infrastructure
* add manpages for zebracam and zebraimg
* add GNU standard options to zebracam and zebraimg
* internal decoder restructuring to support additional symbologies
- separated out 1-D decoder infrastructure into generic internal API
- moved EAN/UPC specific decoding into it's own module
* fix confusing configure behavior which quietly avoided building
targets with missing dependencies(?!)
configure will now fail with a descriptive error message if you
do not have Magick++ and fail to specify --without-imagemagick or
do not have SDL and fail to specify --without-sdl
* add configure summary describing what will be built (req #1698196)
* fix parity encoding in test_decode and add decoded symbol output
* introduce Code 128 symbol type
* increase width of zebra_symbol_type_t to 16 bits
* add HACKING (bug #1698202)
version 0.1:
* add NEWS and ChangeLog
* fix some config/build issues found on other boxes
* add missing ImageWalker install
* fix scanner runaway threshold calculation bug
* fix zebracam/zebraimg bugs overwriting currently scanning image w/scan
pattern
* add c++ interface to img_walker
* apply ImageWalker to zebraimg
* add decoder soft reset on partial mismatch
* finish basic decoder symbol assembly/reporting
* add decoder symbol checksum verification
* add callback API option to decoder for "async" symbol processing
* add "image walker" library API to trace scan pattern over 2D images
* apply image walker to zebracam (C++/zebraimg scan pattern still TBD)
* add audio feedback to zebracam (still has long latency)
* add zebracam key cmd to dump frame to file (for debugging)
* fixes for decoder/scanner reset/new_scan
* fixes to scanner initialization and algorithm tweaks
* made decoder less sensitive to violated quiet-zone
* apply zebraimg workaround for imagemagick image display bug
* add string names for symbol types to library and API to access them
* add dbg_scan test program for visually debugging image scanner (and
decoder)
* add test_walk for basic image walker sanity/debug
* removed recursive makes in favor of monolithic build
* renamed some makefiles accordingly
* finished some final symbol data construction
* added result callbacks to decoder APIs for data reporting
* zebraimg hooks into callback
* zebracam still seems to "hang" in undecodeable state?
* populate svn with current sources.
* most of the basic functionality is included and working.
* still need to combine final decode data, finish addons, etc (see TODO).
* c++ wrappers are included and tested, but API may need tweaked.
* zebraimg and zebracam basically working but need cleanup/polish.
* need to create some basic documentation...
* initial repository layout