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LAME 3.98.1 September 21 2008
* Rogerio Brito:
* More fixes for the abx tool for Unix systems:
* Plugged a memory leak.
* Fixed an endianness problem: users of big-endian machines
can now do abx tests.
* Fixed history's HTML doctype
* Fixed history so that it finally validates at W3's validator
* Fixed compilation of frontend mp3rtp.c. Thanks to Kris Karas.
Bugtracker item [ 2015432 ] mp3rtp missing uint16_t in lame 3.98
* Robert Hegemann:
* Fix for Bugtracker item [ 2031704 ] --id3v1-only didnt work in
3.98-final
* Fix for Bugtracker item [ 2022035 ] encoder_padding value and
resampling
* Fix for Bugtracker item [ 2029282 ] Frequency filtering API
broken in 3.98
* Fix for Bugtracker item [ 2039648 ] potential memory leak in
parse_args() function in parse.c
* Fix for some tagging issues:
* Made search for ID3v1 genres more sloppy, abbrevations may
match more often as some simple typos. Examples:
* --tg "Alt. Rock" matches genre "Alternate Rock"
* --tg "acapela" matches genre "A Cappella"
* New switch --pad-id3v2-size "n": adds ID3v2 tag with n
padding bytes.
LAME 3.98 July 4 2008
* Anton Sergunov:
* Frontend DirectShow: enabling LAME dshow filter to connect to
"File Writer Filter".
* Rogerio Brito:
* Updates to the Debian Packaging
* Fixes to the abx tool for Unix systems (so that more people can
evaluate LAME's compression against the original files)
* Alexander Leidinger:
* explicitely link the math lib to the lame lib
* add switch to disable the use of the compaq optimized math lib
LAME 3.98 beta 8 April 13 2008
* Robert Hegemann:
* LAME now accepts a floating point value in the range [0,...,10[
as VBR quality setting, like -V5.678
* Found and fixed some suspicious code in additive masking
calculation for VBR-NEW
* bug-fix:experimental code was defaulted by accident for VBR-NEW
* fix for some endianess problem on big-endian machines
LAME 3.98 beta 7 April 6 2008
* Robert Hegemann:
* libmp3lame API: allow frontends to separately retrieve LAME/Xing
and ID3 data, because the old library automatism makes it
impossible to make fully buffered encodes.
* libmp3lame API: added some experimental unicode ID3 tagging code.
* frontends: write itself final ID3 tags and LAME/Xing header frame
* lame_enc.dll: writes itself final LAME/Xing header frame
* Latest changes to the new VBR psymodel:
* uses a different spreading function
* bug-fix for out-of-bounds array access (program stack
corruption possible)
LAME 3.98 beta 6 December 16 2007
* Robert Hegemann:
* Feature request [ 1811483 ] WAVE_FORMAT_EXTENSIBLE support (PCM)
* Fix for some rare scalefactor selection issue the newer vbr code
had at low compression levels
* Fix for Bugtracker item[ 1813496 ] AIFF parsing bug
* Latest changes to the new VBR code:
* it now has its own psy model, a derivation from NSPSY.
* some more tuning has been done for this new psy model. Many
thanks to Horst Albrecht and Myles Thaiss.
* the "out-of-bits" strategy is reworked
* It was possible, that the "interchannel masking effects feature"
was used by the dual-channel-mode for bi-lingual encodings too.
It was meant to work on stereo L/R channels only.
LAME 3.98 beta 5 August 12 2007
* Jonathan Stott:
* Bug tracker items: [ 1590693 ] ID3v2 tag not writing, [ 1636267 ]
ID3v2 tags overwritten
If the output file is opened 'write-only', then LAME can't update
the LAME tag. In this case LAME silently overwrote the first
bytes of the file and an optional ID3v2 tag disappeared. Now an
error message will be printed and no data is written in this
case.
* Robert Hegemann:
* Fix for Bugtracker item [ 1719593 ] Track numbers > 255 not
allowed even with --id3v2-only
* Fix for Bugtracker item [ 1742623 ] fail(lame --mp3input -m m -b
128 --resample 8 *.mp3 **.mp3)
The problem here was, the input files are MPEG-1 Layer2 files
named as MP3s. Even if you leave out the --mp3input switch LAME
tried to decode the input files as Layer3 files because of the
file name extension and because it found some valid looking
Layer3 synchronization header. The fixed LAME version does not
assume the file name extension is always correct and treats the
files depending on the first found MPEG sync word. The files in
question are now correctly detected as Layer2 files and
transcoding does succeed.
* Fix for Bugtracker item [ 1445175 ] Input being stdin fails in
Windows on WAV files
The problem here was, seeking on pipes shows some different
behaviour depending on C-Library implementations. The workaround
tries to detect it's working on a pipe and doing some reading
instead of seeking in that case.
* Fixing some memory leak in the 'lame_enc.dll'.
* Fix for Bugtracker items [ 1160757, 1160741 ] --little-endian /
--big-endian not working
These switches where originally intended to be used together with
Libsndfile only.
* Fix for Bugtracker item [ 1746336 ] Incorrect Bitrate with ABR
und --resample, LAME 3.98b4
Some earlier bug-fix had some typo. As a result, when adding a
'--resample 123' switch, the average bitrate rised upto maximum
bitrate.
LAME 3.98 beta 4 June 23 2007
* Dennis Lambe Jr: Added support for total track count (id3v2) in the
frontend
* Nyaochi:
* Ability to set user-defined ID3v2.3 frame
* Ability to include albumArt in ID3v2.3 tag
* Robert Hegemann:
* Bugfix: the "play length in ms", which is stored in the ID3v2 tag
TLEN, was not correctly computed. Some hardware and software
players were confused by this garbage data.
* Out of bits strategy for the newer VBR code overhauled
* LAME API: the ID3 tag functions do not store the pointers passed
anymore, they do make deep copies of strings passed as
parameters.
* Changes in LAME frontend switches regarding ID3 tags:
--tg "MyGenre" will route unknown ID3v1 genres to "Other" for
ID3v1 tags and will be stored as plain text "MyGenre" for ID3v2
tags. Genres given by known ID3v1 numbers will be stored as its
corresponding text in ID3v2 tags.
--tn "02/02" will store the track number specified as plain text
as-is for ID3v2 tags.
LAME 3.98 beta 3 May 22 2007
* Robert Hegemann:
* Fixes regarding max number of bits limitation
LAME 3.98 beta 2 May 20 2007
* Robert Hegemann:
* Bug tracker item: [ 1693461 ]; Fixed memory leaks in ACM codec
* Fixed encoding of non-standard sampling rates in CBR
* Improved VBR strategy when running out of bits
LAME 3.98 beta 1 May 16 2007
* Alexander Leidinger:
* Add TLEN (ID3v2) support (Submitted by: Linus Walleij).
* Add number of total tracks per album (ID3v2) support (Submitted
by: Kyle VanderBeek).
* Some seatbelts for overflowing arrays in the ID3v2 support.
* Update the RPM spec (Submitted by: Kyle VanderBeek).
* Fix some mem-leaks in the error case.
* Update to newer autotools versions.
* Update to use a recent libsndfile (submitted by libsndfile
author).
* Intrinsics support enabled for gcc
* Robert Hegemann:
* The newer VBR code is now LAME's default VBR routine
* Fixed: in case of not enough bits the new vbr code incorrectly
used old vbr routine
* Improved ATH adjustment in low volume cases
* Fixed (PSY model): mapping from convolution bands to partition
bands was broken since we replaced tables by own calculation
several years ago
* Fixed (PSY model): loss of fraction in equal loudness weighting
* Fixed (PSY model): in NSPSY highpass filter, out of bounds access
in fircoef
* Known problem samples for the new VBR code: many of them are at
an acceptable quality level now; with a big 'Thank You' to
Francis Niechcial
* Modified VBR strategy to handle out of bits cases
* Restricted bitreservoir size for 320 kbps frames to the size used
for sideinfo, because of decoding problems with FhG decoders
installed on almost every Windows system
* LAME aborts on unsupported input files or unrecognized parameter
options passed more often now
* Bug tracker item: [ 1596306 ] "fatal error during
initialization"; an invalid MPEG samplerate was returned by
optimum_samplefreq function
* Bug tracker item: [ 1585942 ] lame not --silent when TERM not
set; in case LAME was build with TERMCAP defined and no TERM
environment is defined, now we do not issue an error message and
silently fallback to the default behaviour as if LAME was
compiled without TERMCAP defined.
* Bug tracker item: [ 1711980 ] LAME writes invalid Xing header
when ID3 tags exist; LAME was sometimes writing an invalid
Xing/Info header
* Feature request: [ 1588283 ] Flushing output stream in lame.exe;
'flush' option added
* Added FFTSSE and FFT3DNOW assembler code from Lame4 branch
* Changes in lame frontend switches: -k removed, add lowpass and
highpass switches if you need to change them;
--short/noshort/allshort - degraded into DEVELOPER ONLY switches
normal users shouldn't use them; -X -Z degraded to DEVELOPER ONLY
switches, -X is too tough to communicate to end users and -Z
isn't used actualy
* Fixed some console printing problems
* Windows: ACM code now uses LAME library API only, all references
to private include files are removed
* Windows: DirectShow code now uses LAME library API only, all
references to private include files are removed
* Windows: disabled code that resets processor affinity, because
this doesn't belong to LAME, but seems to work around some
problems the parent process has (in most cases EAC)
* John33:
* Fixed mp2 and mp3 decoding: For mp3 and mp2 decoding, this now
yields the same output as foobar2000 but the error checking
remains unchanged
* Gabriel Bouvigne:
* VC8 project files
* Added support for x64 under VC8
* Restricted MPEG 2.5 to 64kbps frames
* Takehiro Tominaga:
* SSE version of FFT
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LAME 3.97 September 24 2006
* 3.97 beta 3 becomes 3.97
LAME 3.97 beta 3 August 19 2006
* Gabriel Bouvigne:
o Workaround against a short blocks detection issue
LAME 3.97 beta 2 November 26 2005
* Gabriel Bouvigne:
o Fixed an initialization error when input is not using a standard sampling frequency
o Fixed a possible assertion failure in very low bitrate encoding
o Slight change regarding ATH adjustment with V5
o Reinstated bit reservoir for 320kbps CBR
o ReplayGain analysis should now be faster when encountering silent parts
* Takehiro Tominaga:
o Fixed a possible link problem of assembly code
LAME 3.97 beta 1 September 12 2005
* Takehiro Tominaga:
o Fixed an out of array access in mp3rtp
o Fixed a quality setting in DLL
o Fixed display when using --silent
* Vitaly Ivanov:
o Updated DirectShow interface
* Robert Hegemann:
o Fixed an out of array access
o Fixed some small rounding problem in vbr-new quantization routines
o Fixed a bug in vbr-new regarding high frequencies (sfb21) when using -Y
o Fixed a few bugs in vbr-new when using -Y
o Updated scalefactors allocation scheme in vbr-new
o Fixed mingw32 configure problems
o Resolved some compiler warnings
o Updated command-line visualisation
* Gabriel Bouvigne:
o Changed some FLOAT8 to FLOAT
o Added project files for VC7
o Reworked -q1 and -q0
o Updated presets
o Fixed an error in ISO quantization on systems not using the IEEE754 hack
o Faster quantization
o SSE version of init_xrpow
* Rog�io Brito:
o Updated Debian packaging
o Documentation work
* Chris Miller:
o Support for x64 platform SDK in makefile.msvc
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* improved presets
* fixed issues in VBR header
* more robust decoding
* several fixes in psychoacoustic model
* removed Vorbis support
* 10% faster on PowerPC
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Changes:
LAME 3.93.1 December 1 2002
* Gabriel Bouvigne:
* preset medium added to the dll interface
* fix for abr/cbr presets
* fix -q0 switch
* Alexander Leidinger: fix link problem on systems where socket() resides in libsocket
LAME 3.93 November 16 2002
* Takehiro Tominaga:
* bit allocation for pre-echo control improved for single channel encodings
* substep noise shaping
* optimizations by changing data structure
* noise shaping model 2 fix
* nspsytune FIR filter clean up
* fix small psymodel bugs(DC current estimation, preecho detection of non-VBR mode, and nspsymode initialization)
* portability fixes for Tru64 UNIX
* Albert Faber: some fixes in the DLL
* Simon Blandford: fixes for channel scaling in mono mode
* Dominique Duvivier: some optimizations and a faster log10 function
* Mark Taylor:
* some tag related fixes in the direct show filter and in the ACM codec
* fixed a mono encoding bug found by Justin Schoeman
* calc_noise bug fix
* other fixes
* Alexander Leidinger:
* update to autoconf 2.53, rewrite some configure tests
* Akos Maroy: determine gcc version even with gcc 3.1
* Andrew Bachmann: compile shared libs on BeOS (and perhaps other arches)
* ultrasparc switches for gcc 3.1
* fixes for SunOS 4.x
* fixes for 64bit arches
* CFLAGS fix for IRIX
* don't override CFLAGS if exptopt isn't requested
* Robert Hegeman:
* some fixes
* some fixes for VBR
* Gabriel Bouvigne:
* --noasm switch. Might help Cyrix/Via users
* presets and alt-presets merged
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Changes since 3.89:
* Darin Morrison: Bugfix for --alt-preset (for content with low volume,
clean vocals), only important for the "fast standard" preset
* Alexander Leidinger: <BR
* add some missing files to the distribution
* add --alt-preset to the man page
* Many small improvements and bug fixes not added to history
* John Dahlstrom: more fine tuning on the auto adjustment of the ATH
* Robert Hegemann: small speed and quality improvements for the old VBR
code (--vbr-old).
* Robert Hegemann: some short block bug fixes
* Robert Hegemann: Big improvements to --vbr-mtrh, now encodes much
more frequencies over 16khz
* Robert Hegemann: --vbr-new code disabled (outdated and lower quality)
and replaced with --vbr-mtrh (Both --vbr-new and --vbr-mtrh now
default to mtrh)
* Robert Hegemann: reordering of --longhelp to give more information,
--extrahelp dropped
* Darin Morrison: Totally revamped and extremely high quality unified
preset system and other general quality improvements now available
with --alt-presets:
* some improvements to psychoacoustics (vast improvements over
default L.A.M.E. modes) when --alt-preset is used including:
* Improved tuning of short block usage.
* Improved quantization selection usage (the -X modes), now
adapts between appropriate modes on the fly. Also helps on
"dropout" problems and with pre-echo cases.
* Improved joint stereo usage. Thresholds are better tuned now
and fix some "dropout" problems L.A.M.E. suffers from on
clips like serioustrouble.
* Improved noise shaping usage. Now switches between noise
shaping modes on the fly (toggles -Z on and off when
appropriate) which allows lower bitrates but without the
quality compromise.
* Clips vastly improved over default L.A.M.E. modes
(vbr/cbr/abr, including --r3mix): castanets, florida_seq,
death2, fatboy, spahm, gbtinc, ravebase, short, florida_seq,
hihat, bassdrum, 2nd_vent_clip, serioustrouble, bloodline,
and others. No degraded clips known.
* VBR bitrates are now more "stable" with less fluctuation --
not dipping too low on some music and not increasing too
high unnecessarily on other music. "--alt-preset standard"
provides bitrates roughly within the range of 180-220kbps,
often averaging close to 192kbps.
* --alt-presets replace the --dm-presets and "metal" preset is
removed and replaced with generic abr and cbr presets.
* --alt-preset extreme (note the 'e') replaces xtreme to help
eliminate some confusion
* --alt-preset vbr modes now have a fast option which offers almost
no compromise in speed.
* --alt-preset standard (and "fast standard") are now much lower in
bitrate, matching --r3mix with an overall average, though
offering higher quality especially on difficult test samples.
* --alt-presets are no longer just "presets" as in a collection of
switches, instead they are now quality "modes" because of special
code level tunings (those mentioned above).
* Use --alt-preset help for more information.
* Roel VdB: more tuning on the --r3mix preset
* Jon Dee, Roel VdB: INFO tag
* Alexander Leidinger, mp3gain@hotmail.com: added --scale-l and
--scale-r to scale stereo channels independantly
* Takehiro Tominaga: new noise shaping mode, offering more "cutting
edge" shaping according to masking, enabled via -q1
* Mark Taylor: More work on --nogap
* Gabriel Bouvigne: Small changes to abr code for more accurate final
bitrate
* Gabriel Bouvigne, mp3gain@hotmail.com: Preliminary ReplayGain
analysis code added (not functional yet)
* Gabriel Bouvigne, Alexander Leidinger: Documentation updates
* John Dahlstrom, DSPguru@math.com: floating point interface function
in the Windows DLL
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pkgsrc related changes:
-use default install, so we get the library installed too
(needed eg. as audacity plugin)
-this version knows about libffm (on alpha), removed corresponding
patches (untested)
changelog:
LAME 3.89alpha July 5 2001
John Stewart: long filename support for Win9x/NT.
Takehiro Tominaga: LAME can calculate the CRC of VBR header, so now
"lame -pv" works fine.
Robert Hegemann: Improvements of the new VBR code.
Robert Hegemann: New VBR code is now defaulted. The VBR speed is now on par
with CBR. We will use the old VBR code in the release.
Gabriel Bouvigne: Change of the maximum frame size limit. LAME should now
be more friendly with hardware players.
Gabriel Bouvigne: Size of VBR is now more balanced according to
the -V value.
Alexander Leidinger: Finished the implementation of the set/get functions.
John Dahlstrom: LAME now handles 24bits input
Mark Taylor: bugs in lame --decode causing truncation of mp3 file fixed
Mark Taylor: preliminary --nogap support
"Final" API completed: shared library safe! This API is frozen and should
be backwords compatiable with future versions of libmp3lame.so, but we
will continue to add new functionality.
LAME 3.88beta March 25 2001
A lot of work that was never added to the History!
Frank Klemm and Gabriel Bouvigne: New ATH formula. Big improvement for
high bitrate encodings.
Takehiro Tominaga: Temporal masking
Gabriel Bouvigne/Mark Taylor: auto adjustment of ATH
Robert Hegemann: Better outer_loop stopping criterion. Enabled
with -q2 or better.
Robert Hegemann/Naoki Shibata: slow/carefull noise shaping.
-q3..9: amplify all distorted bands.
-q2: amplify distorted bands within 50%.
-q1-0: amplify only most distorted band at each iteration.
Takehiro Tominaga: Interframe, shortblock temporal masking.
Takehiro Tominaga: LAME restructured into a shared library and front end
application. Slight changes to the API. More changes are coming to
turn LAME into a true shared library (right now you have to recompile
if you upgrade the library :-(
Naoki Shibata:
improvements to psychoacoustics (--nspsytune)
BUG in long block pre echo control fixed (some out of range array
access in M/S psychoacoustics)
Ralf Kempkens: Visual Basic Script for lame, suggested to put it on your
Windows Desktop and you can drag'n'drop Waves to encode on it.
Alexander Stumpf: improved lame.bat for 4Dos users
Mark Taylor: Several bugs fixed in the resampling code.
Frank Klemm, Robert Hegemann: added assembler code for CPU feature
detection on runtime (MMX, 3DNow, SIMD)
Takehiro Tominaga: 3DNow FFT code.
Florian Bome, Alexander Leidinger: more work on configure stuff
Alexander Leidinger: automake/libtool generated Makefiles and TONS of
other work.
Alexander Leidinger: Much work towards shared library style API.
Anonymous: New more efficient RTP code.
Mark Taylor: psycho-acoustic data now computed for all scalefactor bands
(up to 24khz)
Mark Taylor, Takehiro Tominaga: All ISO table data replaced by formulas -
should improve MPEG2.5 results for which we never had correct
table data.
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instead; install more documentation.
Lame isn't any longer a patch against the ISO source, but stand-alone.
Other changes:
MP3 decoding support, ID3V2 support, vorbis support (not compiled in
right now), MPEG2.5 support; lots of bugfixes and speedups (for
details, see installed history.html).
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Full list of changes available at http://www.sulaco.org/mp3/history.html,
but highlights include:
- Faster Huffman encoding routines
- faster pow() code.
- faster FFT routines
- new scalefac data structure - improves performance!
- Fitlers based on polyphase filterbank. should be slightly better
since the responce is independent of the blocktype, and they are
slightly faster.
+ many bugfixes
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the build, and links with the libffm libm replacement for alpha.
160kbit encode without libffm: 3:44
160kbit encode with libffm : 2:03
VBR=4 encode without libffm : 9:12
VBR=4 encode with libffm : 4:39
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