The following text contains the complete list of changes starting with version 4.504b, released on 2003-04-16. It is automatically included verbatim from the plain text file changelog.txt, taken from the latest version of the release packages.
OFR + OFS + OFF version 5.100 and SDK version 1.600 [2016-09-02]:
- add --preset 0 to --preset 10 command-line options for the most
efficient compression presets, backward compatible with v4.600
- add more efficient versions of the highnew, extranew, bestnew, and
ultranew modes, named highnew-light, extranew-light, bestnew-light,
and ultranew-light, backward compatible with v4.520
- add turbonew, fastnew, and normalnew efficient compression modes to
complement the extra mode, backward compatible with v4.520
- add the --aca and --acm aliases and the negated form --no-aca
- add the minDecoderVersion optional field to the main block, which
has the minimum decoder version required to decode the file
- a value of 1000 and 2000 can be added to any preset level in order
to enable --acm and --optimize best, respectively
- add --preset max to replace --maximumcompression --experimental
- show for each preset its complexity and compression gain, relative
to preset 0, and equivalent options in the command-line help
- speed increase of around 10% for all *new modes, such as highnew,
extranew, and bestnew, by improved SSE optimizations
- speed increase of around 10% for all non *new modes, such as fast,
normal, and high, by newly added SSE2 optimizations
- generate txz files instead of tar.gz for FreeBSD release packages
- small documentation additions, updates, and information about the
newly added modes and the minDecoderVersion optional field
- many internal small code improvements and updates
OFR + OFS + OFF version 5.003 and SDK version 1.500 [2015-11-06]:
- new official release packages with binaries and SDK are available
also for FreeBSD/x86, FreeBSD/x86+SSE2, and FreeBSD/x64. Thanks to
Matthew Rezny for suggestion, information, and testing
- add --writefreshheader option to write a fresh standard WAV header
during decoding, replacing any stored header and footer
- add standard interactive installer file install.sh, which copies
the binary command-line encoders, the binary SFX decoder, the
binary library, the SDK headers, and the pkg-config configuration
file optimfrog.pc to their usual file system locations, on Linux,
OS X, and FreeBSD. Thanks to Chris Spiegel for contributing the
initial version of the install.sh and optimfrog.pc.in files
- add versioning support to the shared object binary library, using
the standard naming conventions, on Linux, OS X, and FreeBSD.
Thanks to Chris Spiegel for suggestion, information, and testing
- add OptimFROG to the relative path for all includes in the SDK
examples. After installation with install.sh, the SDK examples
can also be built using the included pkg-config definitions for
the OFR_INCLUDE and OFR_LIBRARY variables from the Makefile
- decoder speed improvements for --advanced-compression-analysis and
--advanced-compression options, if there was no compression gain
- add to the command-line help the --advanced-compression-analysis
and --advanced-compression-modeling undocumented options
- allow the --experimental, --advanced-compression, and the other
two related options only for the Lossless variant, because they
were not intended to work or be compatible with DualStream
- many internal code improvements and updates, which provide small
speed improvements for all compression modes under most platforms
OFR + OFS + OFF version 5.002 and SDK version 1.401 [2015-08-18]:
- significant compatible compression improvements, around 4%, for the
fast, normal, and high modes when using --optimize none, for stereo
files with mono or near mono content
- fixed an issue with --advanced-compression which triggered an
out-of-memory exception during encoding of data blocks containing
only 1 sample point. Thanks to Skymmer for reporting
- fixed a file handle leak in the SDK when trying to open files which
are not OptimFROG files. Thanks to Chris for reporting
- fixed a rare issue where a non-conforming MD5 hash was computed for
files with an audio data size from 56 to 63 modulo 64. These hashes
can still be checked normally using the command-line encoders. No
file from Audio CDs is affected. Thanks to Robert for reporting
OFR + OFS + OFF version 5.001 [2015-07-16]:
- fixed WAVE parser with --incorrectheader option to accept all WAV
files with incorrect RIFF and data chunk sizes in the WAV header,
and correct these sizes in the stored WAV header after encoding
OFR + OFS + OFF version 5.000 and SDK version 1.400 [2015-06-19]:
- a new unified, simplified, and more permissive license which allows
both non-commercial and commercial use, and also redistribution
- new official release packages with binaries and SDK are available
also for Win/x64, OSX/x86+SSE2, and OSX/x64
- new official release packages with binaries and SDK built with SSE2
enabled are available for Linux/x86+SSE2 and Win/x86+SSE2
- the SDK is now included with the release package for each platform
- many internal code improvements and updates, which provide various
speed improvements for all compression modes under each platform
- fully reviewed, significantly reduced, and reorganized all platform
dependent source code and predefined macros
- added portable generic versions for all platform dependent source
code, to become fully compliant with C++03 and C99 standards
- source code also compiles cleanly with Clang under each platform
- updated SDK examples, completely changed SDK directory layout, and
separated all the plug-ins source code from the SDK
- added --advanced-compression command-line option to the encoders in
order to replace the --experimental deprecated option name
- added support for files larger than 2 GB also to the Linux and OSX
32-bit command-line encoders using POSIX Large File Support (LFS)
- merged the implementation in OptimFROGDecoder.cpp for the thin C++
wrapper around the C-style interface into OptimFROGDecoder.h
- all compressed sizes are identical to those from the 4.910b version
- updated and merged SDK and format documentation, and the changelog
- new scripts to create and verify release packages for each platform
OFR + OFS + OFF version 4.910b and SDK version 1.300 [2011-02-10]:
- fully backward compatible with previous versions
- slightly better compression for highnew, extranew, bestnew
modes, and also for --maximumcompression
- parsing WAV files with invalid data chunk size in WAV header
using --incorrectheader (for foobar2000 and other command
line format converters using pipes who cannot compute the WAV
file length in advance and generate a 4 GB header instead)
- many internal source code improvements
- [other] updated foobar2000 input plug-in for foobar2000 1.1.x
- [other] updated OptimFROG SDK to version 1.300 (included here)
OFR version 4.800a [2008.05.05]:
- includes only Win32 binary
- internal source code improvements
- not publicly released on the website
SDK version 1.220b [2008.02.25]:
- the OptimFROG library is now also available for Darwin as a
DYLIB universal (ppc and x86) library
- added a FMOD SoundSystem Win32 plug-in named codec_ofr
- not publicly released on the website
OFR version 4.600ex [2008.02.25]:
- includes only Darwin universal (ppc and x86) binary
- successfully ported to Darwin/x86
- not publicly released on the website
OFR version 4.600ex [2006.06.26]:
- the highnew, extranew, bestnew modes and maximumcompression get
slightly better compression (on average 0.1%)
- added --experimental option, enabling advanced experimental
compression, which is NOT backward compatible with any previous
4.5xx versions
* use with any mode for greatly improved compression for some
files (on average, 0.60% better compression for Audio CDs)
* extranew speed: encoding < 35% slower, decoding < 11% slower
* can be also used together with --maximumcompression
- [other] the foobar2000 input plug-in now supports cue sheets
(thanks to Artur for suggestions and testing)
- [other] official GUI interface using FroG is ready, it will be
included in the upcoming OptimFROG installer (thanks to Daniel,
the FroG author; available at http://frog.objective-view.de/)
- [other] parsing WAV files with invalid headers is in the works
OFR + OFS + OFF version 4.520b1 [2006.04.18]:
- the port to Darwin/ppc was verified and is now released (thanks
to krmathis for testing)
- added --tailsize option to specify the tail bytes for raw files
- fixed MD5 internal computing for big endian architectures
- added run-time self integrity architecture check
- fixed --check_audition option which used a condition too strict
and did not correct all the corrupted zeros
OFR + OFS + OFF version 4.520b and SDK version 1.210b [2006.03.02]:
- successfully ported to Linux/amd64
- successfully ported to Darwin/ppc (PowerPC G3)
- many internal source code improvements
- all the newly created compressed files are
completely backwards compatible (can be
decoded with previous 4.50x versions)
- added ID3v2 tag support (all decoders can
search for main header, skipping up to 1MB)
- added --selfextract option, the Win32/x86 sfx
stub (statically linked) is only 55 kB in size
- complete self extracting support for Win32/x86,
Linux/x86, and Linux/amd64 (all sfx stubs are
statically linked)
- C source code for sfx stub available in SDK
- slightly faster encoding and decoding with
exactly the same compression
- compression improved very slightly when using
--optimize best option
- improved compression (0.1-0.3%) when using
command --maximumcompression (this option
is mainly intended for benchmark)
- added --correct_audition option to IEEE Float
to correct Adobe Audition / CoolEdit conversion
bug: when converting from int to float, Audition
converts 0 values to random noise with maximum
relative amplitude < 5*10^-16; this option
carefully corrects this bug setting them back
to 0 and significantly improves compression
ratio in these files
- the OptimFROG.dll/.so version 1.210 is binary
compatible with the previous versions, now also
available for Linux/amd64 and Darwin/ppc
- fixed a missing check for errors after calling
OptimFROG_readTail(...), which could return -1,
in Test_C and Test_CPP SDK samples
SDK version pr1.200_2 [2005.09.21]:
- fixed a typing bug in the new C++ based interface, which caused
wrong display of tags. Winamp5, dBpowerAMP, XMMS plug-ins, and CPP
examples were recompiled (unfortunately, the Linux binaries were
now compiled on Fedora Core 2, but you can recompile them on your
system using the included scripts). Thanks to Andrea for reporting
OFR + OFS + OFF version pr4.510_2 [2005.09.21]:
- small fixes and improvements
SDK version pr1.200_1 [2005.07.24]:
- fixed a problem with deallocation of tags in some situations,
causing a crash when OptimFROG_freeTags is called
SDK version pr1.200 [2005.07.17]:
- OptimFROG.h now uses PortableTypes.h and SystemID.h in order to
have portable types and infrastructure
- the library is now available also for Linux as OptimFROG.so
- added OptimFROG_freeTags to release the memory allocated for the
key and value pairs in the tags structure
- added a C++ based interface OptimFROGDecoder.h, having greater
flexibility and requiring less work for writing plug-ins
- all type names were appended _t to avoid name clashes
- backward compatible type names are defined as macros
- there are two new examples for using the C++ based interface
- small fixes and improvements
- based on the OptimFROG internal engine version 4.510
OFR + OFS + OFF version pr4.510 [2005.07.17]:
- encoding is now 6% faster with exactly the same
compression
- all the source code was reorganized and rewritten
to use uniform standards and increase portability
- OFR, OFS, OFF and the DLL/SO library were merged
into a single, common code base
- significantly reduced system dependent code areas
- all programs are now Valgrind clean
- fixed small problems (like not setting the file
date for the correction file)
- the OptimFROG library is now available for Linux
as a SO library
- the OptimFROG.dll version 1.200 is binary
compatible with the previous versions
- added new function OptimFROG_freeTags to release
the memory allocated for the tags structure
- new C++ wrapper interface for the OptimFROG
library requiring less work for writing plug-ins
- two C usage examples and two C++ usage examples
of the library for Windows/Linux
- complete source code for dBpowerAMP, Winamp 5,
foobar2000, and XMMS plug-ins
- site address has changed to (the other are still
usable) http://www.LosslessAudio.org
SDK version 1.100 [2004.04.21]:
- not binary compatible with the 1.000e experimental version, the
applications must be recompiled (without any source code changes)
- fixed a problem where the file handle was not released when getting
file information using the infoFile function. Thanks to Florian for
reporting
- fixed a problem where no error code was returned when the function
decodeFile failed to write data, when disk was full
- added two text fields, sampleType and channelConfig to the Info
structure
- updated the sample command line programs to have complete error
checking, reporting and return codes
- small updates to the foobar2000 plug-in. Thanks to Case for
reporting and help
- small fixes and improvements
- based on the OptimFROG internal engine version 4.509
OFF version 4.509 [2004.04.18]:
- added complete raw file support
- added verify command
- added --mantissabits option to reduce effective
mantissa bits before the actual compression
OFR + OFS version 4.509 [2004.04.13]:
- [OFS] around 10% faster encoding in average bitrate mode at bit
identical results
- enhanced the WAV file parser to automatically detect uneven size
chunks without the required alignment byte (non-conforming files)
- slight general speed enhancement with around 2%
- added the --headersize option to specify the starting header size
for raw files, also useful for raw data alignment
- enhanced the raw file parser to add the last few bytes to the tail
instead of rejecting the file for having a non-divisible data size
- enhanced automatic generation of file extension at decoding (using
the header data to detect if the file is WAV or raw)
- added full support for the data types SINT8, UINT16, UINT24, UINT32
- fixed a very rare encoder bug where an invalid compressed block was
created for some silence-like data. Thanks to Olivier for reporting
SDK version 1.000e [2004.02.22]:
- first public release, experimental version
OFF version 4.508e [2003.10.04]:
- first IEEE Float public release, experimental version
OFR + OFS version 4.507 [2003.09.28]:
- fixed wildcards support, where files not in the current directory
were not expanded correctly with their path
- fixed some small memory allocation problems
- small fixes and improvements
OFS version 4.507b1 [2003.07.24]:
- corrected a very rare problem with 24 bit mono files when using
--ans which could make the encoder crash (only ofs.exe updated)
OFS version 4.507b [2003.07.20]:
- stable format, not anymore alpha stage
- new correction file format, works now with the --ans option
- corrected the --ans (advanced noise shaping) option, which
previously used suboptimal formulas, and works better now
- no longer creates pure lossless files, use OFR instead
- default (no command line switches) encodes at --quality 3
- corrected some small decoder problems with high amplitude signals
- the --check option works with --correction to check MD5 hash
- new input plug-ins (compiled also for dBpowerAMP and Winamp3)
- decoding compatible with the alpha versions (4.507a and 4.507a2),
but not with their correction files
- removed raw file support, which was not implemented
- small fixes and improvements
OFS version 4.507a2 [2003.06.25]:
- added advanced noise shaping at encoding (--ans), improving
transparency, especially at middle bitrates
OFS version 4.507a1 [2003.06.23]:
- 210% faster encoding in quality mode at bit identical results
- 220%-270% faster encoding in average bitrate mode at bit identical
results
- not publicly released
OFS version 4.507a [2003.06.21]:
- first DualStream version
OFR version 4.506 [2003.05.31]:
- added wildcards support for matching multiple source files
- added the new highnew compression mode, 25% faster than extranew
mode with very similar compression
- the encoder now writes the exact compression mode used in the
informational purpose field of the header (instead of just extra
for the extranew mode)
- added the --deleteafter option to delete the source file after
successful encoding or decoding
- added the --timestamp option to copy the source file's time stamp
to the destination file when encoding or decoding
- added the --md5 option to store MD5 hash of original raw PCM input
data when encoding, and the --check command to check it later
- made the --verify command work also silent
- the --speedup option is now deprecated
- fixed an important memory leak in the decoder common plug-in
interface
- fixed a rare decoder bug where files encoded with bestnew mode and
speedup 1x would fail to decode. Thanks to Eltoder for reporting
- small fixes and improvements
OFR version 4.505 [2003.05.14]:
- enabled compression to a pipe and decompression from a pipe
- fixed a problem with rejection of some non-seekable raw input files
- fixed a rare encoder problem with mono files and extranew mode
- the ultra and insane compression modes are now deprecated
- fixed crashing under Windows 95 due to SSE detection problem.
Thanks to Case for reporting and help
- small fixes and improvements
OFR version 4.504b [2003.04.16]:
- created this file