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diff --git a/lib/liblame/doc/html/history.html b/lib/liblame/doc/html/history.html new file mode 100644 index 0000000000..34775f5b39 --- /dev/null +++ b/lib/liblame/doc/html/history.html @@ -0,0 +1,3291 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" + "http://www.w3.org/TR/html4/loose.dtd"> +<html> +<head> + + <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> + + <meta name="GENERATOR" content="Mozilla/4.7 [en] (X11; I; Linux 2.2.12-20 i686) [Netscape]"> + + <meta http-equiv="content-type" content="text/html; charset=ISO-8859-1"> + <title>LAME Changelog</title> + + +</head> + + +<body style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);" alink="#bbbbbb" link="#888888" vlink="#555555"> + +<center> +<h1>History</h1> + +</center> + +Starting with LAME 3.0: <br> + +<font color="#ff0000">red = features and bug fixes which +affect quality</font> <br> + +<font color="#3366ff">blue = features and bug fixes which +affect speed</font> <br> + +black = usability, portability, other +<hr> + +<hr> +<h3>LAME 3.98.4 March 22 2010</h3> +<ul> + <li>Joseph Flynn + <ul> + <li>Improvements for LAME DirectShow filter: + <ul> + <li>Added support for the DirectShow IAMStreamConfig Interface to the LAME encoder filter output pin. + </li> + <li>Modified the DirectShow filter registration section so that the LAME Encoder filter is correctly registered in the Audio Compressors filter category. This will allow third-party encoding applications using the DirectShow System Device Enumerator Interface to correctly detect the LAME encoder when querying the Audio Compressors filter group. + </li> + <li>Modified the filter registration information so that the MP3 audio subtype is correctly reported as being supported on the encoder output pin. This will allow third-party encoding applications using the DirectShow IFilterMapper2 Interface to recognize that the LAME encoder supports MP3 output. + </li> + <li>Altered the Filter Merit Value that was being used when the filter was registered so that it is now using the standard DirectShow compressor filter merit value of MERIT_DO_NOT_USE (0x200000). Previously, the filter was being registered using a value of MERIT_SW_COMPRESSOR (0x100000), which was at a lower priority (i.e. worse priority) than MERIT_DO_NOT_USE. This prevented the LAME Encoder filter from being selected for use by some third-party encoding applications. + </li> + <li>Added code to calculate the frame length of the audio frames used for the nBlockSize element of the WAVEFORMATEX output structure. Previously this value was simply hard-coded to 1. + </li> + </ul> + </li> + </ul> + </li> + + <li>Robert Hegemann + <ul> + <li><font color="#ff0000">Fix for Bugtracker item <i>[ 2973877 ] A problem regarding the new drain code</i></font> + </li> + </ul> + </li> +</ul> + +<h3>LAME 3.98.3 February 27 2010</h3> +<ul> + <li>Rogério Brito: + <ul> + <li>Update the debian packaging for the new release. + </li> + </ul> + </li> + <li>Robert Hegemann + <ul> + <li>The <b>ignore-tag-errors</b> switch had no effect when embedding album art, fixed.</li> + <li>Library API change: lame_decode functions are now obsolete but still present, please use hip_decode instead. + The reason for this change is: lame_decode functions use a single global variable within the library + to store decoder setup, hip_decode functions don't. + The encoder now uses hip_decode internally and it is now possible to use <b>clipdetect</b> + feature while reencoding mp3 to mp3. + </li> + <li>Workaround for FFMPEG bug, which uses to call lame_encode_flush more than once in a loop. + </li> + <li>Windows: program icon and version info added (when building with VC9) + </li> + <li>Fix for Bugtracker item <i>[ 2688413 ] lib name problem in Microsoft Visual Studio 6</i> + </li> + <li>Fix for Bugtracker items <i>[ 2051870, 2423650, 2928684 ] several small documentation issues</i> + </li> + <li>Fix for Bugtracker item <i>[ 2723518 ] resampling in 3.98 and 3.99alpha</i> + </li> + <li>Fix for Bugtracker item <i>[ 2891879 ] Because of Windows API change, there was a problem with the <b>prority</b> switch.</i> + </li> + <li>Fix for Bugtracker item <i>[ 2893101 ] Access Violation in BladeMP3EncDLL if UNICODE was defined.</i> + </li> + <li>Fix for Bugtracker item <i>[ 2887359 ] Wrong length in ID3v2 tag when num_samples isn't set</i> + </li> + <li>Fix for Bugtracker item <i>[ 2872590 ] LameTAG: "Music length" missmatch in LAME 3.98</i> + </li> + <li>Fix for Bugtracker item <i>[ 2824296 ] wrong enc_padding value in LAME 3.99a and 3.98.3 (from CVS)</i> + </li> + <li><font color="#ff0000">Revisiting the FhG decoder problem (FhG V1.5 build 50, ships with MS Windows): + enabling the new-drain-code seems to solve that issue better, than restricting the buffer size (see below: 3.98 beta 1, May 16 2007).</font> + </li> + <li>Patch submitted by Bernhard Doebler, tracker item <i>[ 2807676 ] Error when building Lame with NASM support</i> + </li> + <li>Patch submitted by Mancuso Raffaele, tracker item <i>[ 2406420 ] compile lame_enc.dll under cygwin</i> + </li> + </ul> + </li> +</ul> + +<h3>LAME 3.98.2 September 22 2008</h3> +<ul> + <li>Robert Hegemann</li> + <ul> + <li>Fix for Bugtracker item <i>[ 2123206 ] lame 3.98.1 segfaults with -h</i> + </li> + </ul> +</ul> + +<h3>LAME 3.98.1 September 21 2008</h3> +<ul> + <li>Rogério Brito: + <ul> + <li>More fixes for the abx tool for Unix systems: + <ul> + <li>Plugged a memory leak.</li> + <li>Fixed an endianness problem: users of big-endian machines + can now do abx tests.</li> + </ul> + </li> + <li>Fixed history's HTML doctype</li> + <li> + Fixed history so that it <em>finally</em> validates + at <a href="http://validator.w3.org/">W3's validator</a> + </li> + <li> + Fixed compilation of frontend <code>mp3rtp.c</code>. Thanks to Kris Karas. + Bugtracker item <i>[ 2015432 ] mp3rtp missing uint16_t in lame 3.98</i> + </li> + </ul> + </li> + <li>Robert Hegemann: + <ul> + <li>Fix for Bugtracker item <i>[ 2031704 ] --id3v1-only didnt work in 3.98-final</i></li> + <li>Fix for Bugtracker item <i>[ 2022035 ] encoder_padding value and resampling</i></li> + <li>Fix for Bugtracker item <i>[ 2029282 ] Frequency filtering API broken in 3.98</i></li> + <li>Fix for Bugtracker item <i>[ 2039648 ] potential memory leak in parse_args() function in parse.c</i></li> + <li>Fix for some tagging issues: + <ul> + <li>Made search for ID3v1 genres more sloppy, abbrevations may match more often as some simple typos. + Examples:<ul><li>--tg "Alt. Rock" matches genre "Alternate Rock"</li> + <li>--tg "acapela" matches genre "A Cappella"</li> + </ul></li> + <li>New switch --pad-id3v2-size "n": adds ID3v2 tag with n padding bytes.</li> + </ul></li> + </ul> + </li> +</ul> + +<h3>LAME 3.98 July 4 2008</h3> +<ul> + <li>Anton Sergunov: + <ul> + <li>Frontend DirectShow: enabling LAME dshow filter to connect to "File Writer Filter". + </li> + </ul> + </li> + <li>Rogério Brito: + <ul> + <li>Updates to the Debian Packaging</li> + <li>Fixes to the abx tool for Unix systems (so that more people + can evaluate LAME's compression against the original files)</li> + </ul> + </li> + <li>Alexander Leidinger: + <ul> + <li>explicitely link the math lib to the lame lib</li> + <li>add switch to disable the use of the compaq optimized math lib</li> + </ul> + </li> +</ul> + +<h3>LAME 3.98 beta 8 April 13 2008</h3> +<ul> + <li>Robert Hegemann: + <ul> + <li>LAME now accepts a floating point value in the range [0,...,10[ as VBR quality setting, like <b>-V5.678</b> + </li> + <li>Found and fixed some suspicious code in additive masking calculation for VBR-NEW + </li> + <li>bug-fix:<font color="#ff0000">experimental code was defaulted by accident for VBR-NEW</font> + </li> + <li>fix for some endianess problem on big-endian machines + </li> + </ul> + </li> +</ul> + +<h3>LAME 3.98 beta 7 April 6 2008</h3> + +<ul> + <li>Robert Hegemann: + <ul> + <li>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. + </li> + <li>libmp3lame API: added some experimental unicode ID3 tagging code. + </li> + <li>frontends: write itself final ID3 tags and LAME/Xing header frame + </li> + <li>lame_enc.dll: writes itself final LAME/Xing header frame + </li> + <li>Latest changes to the new VBR psymodel: + <ul> + <li>uses a different spreading function + </li> + <li><font color="#ff0000">bug-fix for out-of-bounds array access (program stack corruption possible)</font> + </li> + </ul> + </li> + </ul> + </li> +</ul> + +<h3>LAME 3.98 beta 6 December 16 2007</h3> + +<ul> + <li>Robert Hegemann: + <ul> + + <li>Feature request <i>[ 1811483 ] WAVE_FORMAT_EXTENSIBLE support (PCM)</i> + </li> + + <li><font color="#ff0000">Fix for some rare scalefactor selection issue the newer vbr code had at low compression levels + </font></li> + + <li>Fix for Bugtracker item<i>[ 1813496 ] AIFF parsing bug</i> + </li> + + <li>Latest changes to the new VBR code: + <ul> + + <li><font color="#3366ff">it now has its own psy model, a derivation from NSPSY.</font> + </li> + + <li><font color="#ff0000">some more tuning has been done for this new psy model.</font> + Many thanks to Horst Albrecht and Myles Thaiss. + </li> + + <li><font color="#ff0000">the "out-of-bits" strategy is reworked</font> + </li> + + </ul> + + <li><font color="#ff0000">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.</font> + </li> + + </ul> + </li> +</ul> + +<h3>LAME 3.98 beta 5 August 12 2007</h3> + +<ul> + + <li>Jonathan Stott: + + <ul> + + <li>Bug tracker items: <i>[ 1590693 ] ID3v2 tag not writing, [ 1636267 ] ID3v2 tags overwritten</i><br> + 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. + </li> + + </ul> + + </li> + + <li>Robert Hegemann: + <ul> + + <li>Fix for Bugtracker item <i>[ 1719593 ] Track numbers > 255 not allowed even with --id3v2-only</i> + + <li>Fix for Bugtracker item <i>[ 1742623 ] fail(lame --mp3input -m m -b 128 --resample 8 *.mp3 **.mp3)</i><br> + 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. + </li> + + <li>Fix for Bugtracker item <i>[ 1445175 ] Input being stdin fails in Windows on WAV files</i><br> + 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. + </li> + + <li>Fixing some memory leak in the 'lame_enc.dll'. + </li> + + <li>Fix for Bugtracker items <i>[ 1160757, 1160741 ] --little-endian / --big-endian not working</i><br> + These switches where originally intended to be used together with Libsndfile only. + </li> + + <li>Fix for Bugtracker item <i>[ 1746336 ] Incorrect Bitrate with ABR und --resample, LAME 3.98b4</i><br> + Some earlier bug-fix had some typo. As a result, when adding a '--resample 123' switch, + the average bitrate rised upto maximum bitrate. + </li> + + </ul> + </li> + +</ul> + +<h3>LAME 3.98 beta 4 June 23 2007</h3> + +<ul> + + <li>Dennis Lambe Jr: Added support for total track count (id3v2) in the frontend + </li> + + <li>Nyaochi: + <ul> + + <li>Ability to set user-defined ID3v2.3 frame</li> + + <li>Ability to include albumArt in ID3v2.3 tag</li> + + </ul> + + </li> + + <li>Robert Hegemann: + <ul> + + <li>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.</li> + + <li><font color="#ff0000">Out of bits strategy for the newer VBR code overhauled</font></li> + + <li>LAME API: the ID3 tag functions do not store the pointers passed anymore, + they do make deep copies of strings passed as parameters. + </li> + + <li>Changes in LAME frontend switches regarding ID3 tags: + <br><tt>--tg "MyGenre"</tt> 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. + <br><tt>--tn "02/02"</tt> will store the track number specified as plain text as-is + for ID3v2 tags. + </li> + </ul> + + </li> + +</ul> + +<br> + +<h3>LAME 3.98 beta 3 May 22 2007</h3> + +<ul> + + <li>Robert Hegemann: + <ul> + + <li>Fixes regarding max number of bits limitation</li> + + </ul> + + </li> + +</ul> + +<br> + +<h3>LAME 3.98 beta 2 May 20 2007</h3> + +<ul> + + <li>Robert Hegemann: + <ul> + + <li>Bug tracker item: <i>[ 1693461 ];</i> + Fixed memory leaks in ACM codec</li> + + <li>Fixed encoding of non-standard sampling rates in CBR</li> + + <li><font color="#ff0000">Improved VBR strategy when running out of bits</font></li> + + </ul> + + </li> + +</ul> + +<br> + +<h3>LAME 3.98 beta 1 May 16 2007</h3> + +<ul> + + <li>Alexander Leidinger: + <ul> + + <li>Add TLEN (ID3v2) support (Submitted by: Linus Walleij).</li> + + <li>Add number of total tracks per album (ID3v2) support +(Submitted by: Kyle VanderBeek).</li> + + <li>Some seatbelts for overflowing arrays in the ID3v2 +support.</li> + + <li>Update the RPM spec (Submitted by: Kyle VanderBeek).</li> + + <li>Fix some mem-leaks in the error case.</li> + + <li>Update to newer autotools versions.</li> + + <li>Update to use a recent libsndfile (submitted by +libsndfile author).</li> + + <li><font color="#3366ff">Intrinsics support +enabled for gcc</font></li> + + </ul> + + </li> + + <li>Robert Hegemann: + <ul> + + <li><font color="#3366ff">The newer VBR code is now LAME's default + VBR routine</font></li> + + <li><font color="#ff0000">Fixed: in case of +not enough bits the new vbr code incorrectly used old vbr routine</font></li> + + <li><font color="#ff0000">Improved ATH +adjustment in low volume cases</font></li> + + <li><font color="#ff0000">Fixed (PSY model): mapping from convolution bands + to partition bands was broken since we replaced tables by own calculation + several years ago</font></li> + + <li><font color="#ff0000">Fixed (PSY model): loss of fraction in equal loudness weighting</font></li> + + <li><font color="#ff0000">Fixed (PSY model): in NSPSY highpass filter, out of bounds access in fircoef</font></li> + + <li><font color="#ff0000">Known problem samples for the new VBR code: + many of them are at an acceptable quality level now;</font> + with a big <b>'Thank You'</b> to Francis Niechcial</li> + + <li><font color="#ff0000">Modified VBR strategy to handle out of bits cases</font></li> + + <li>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</li> + + <li>LAME aborts on unsupported input files + or unrecognized parameter options passed more often now </li> + + <li>Bug tracker item: <i>[ 1596306 ] "fatal error during initialization";</i> + an invalid MPEG samplerate was returned by optimum_samplefreq function</li> + + <li>Bug tracker item: <i>[ 1585942 ] lame not --silent when TERM not set;</i> + 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.</li> + + <li>Bug tracker item: <i>[ 1711980 ] LAME writes invalid Xing header when ID3 tags exist;</i> + LAME was sometimes writing an invalid Xing/Info header</li> + + <li>Feature request: <i>[ 1588283 ] Flushing output stream in lame.exe;</i> + 'flush' option added</li> + + <li><font color="#3366ff">Added FFTSSE and FFT3DNOW assembler code from + Lame4 branch</font></li> + + <li>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</li> + + <li>Fixed some console printing problems</li> + + <li>Windows: ACM code now uses LAME library API only, all + references to private include files are removed</li> + + <li>Windows: DirectShow code now uses LAME library API only, all + references to private include files are removed</li> + + <li>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)</li> + + </ul> + + </li> + + <li>John33: + <ul> + + <li>Fixed mp2 and mp3 decoding: For mp3 and mp2 decoding, +this now yields the same output as foobar2000 but the error checking +remains unchanged</li> + + </ul> + + </li> + + <li>Gabriel Bouvigne: + <ul> + + <li>VC8 project files</li> + + <li>Added support for x64 under VC8</li> + + <li>Restricted MPEG 2.5 to 64kbps frames</li> + + </ul> + + </li> + + <li>Takehiro Tominaga: + <ul> + + <li><font color="#3366ff">SSE version of FFT</font></li> + + </ul> + + </li> + +</ul> + +<br> + +<h3>LAME 3.97 September 24 2006</h3> + +<ul> + + <li>3.97 beta 3 becomes 3.97 </li> + +</ul> + +<br> + +<h3>LAME 3.97 beta 3 August 19 2006</h3> + +<ul> + + <li>Gabriel Bouvigne: + <ul> + + <li><font color="#ff0000">Workaround against a +short blocks detection issue</font></li> + + </ul> + + </li> + +</ul> + +<br> + +<h3>LAME 3.97 beta 2 November 26 2005</h3> + +<ul> + + <li>Gabriel Bouvigne: + <ul> + + <li>Fixed an initialization error when input is not using a +standard sampling frequency</li> + + <li>Fixed a possible assertion failure in very low bitrate +encoding</li> + + <li><font color="#ff0000">Slight change +regarding ATH adjustment with V5</font></li> + + <li><font color="#ff0000">Reinstated bit +reservoir for 320kbps CBR</font></li> + + <li><font color="#3366ff">ReplayGain analysis +should now be faster when encountering silent parts</font></li> + + </ul> + + </li> + + <li>Takehiro Tominaga: + <ul> + + <li>Fixed a possible link problem of assembly code</li> + + </ul> + + </li> + +</ul> + +<br> + +<h3>LAME 3.97 beta 1 September 12 2005</h3> + +<ul> + + <li>Takehiro Tominaga: + <ul> + + <li>Fixed an out of array access in mp3rtp </li> + + <li><font color="#ff0000">Fixed a quality +setting in DLL</font></li> + + <li>Fixed display when using --silent</li> + + </ul> + + </li> + + <li>Vitaly Ivanov: + <ul> + + <li>Updated DirectShow interface</li> + + </ul> + + </li> + + <li>Robert Hegemann: + <ul> + + <li><font color="#ff0000">Fixed an out of +array access</font></li> + + <li><font color="#ff0000">Fixed some small +rounding problem in vbr-new quantization routines</font></li> + + <li><font color="#ff0000">Fixed a bug in +vbr-new regarding high frequencies (sfb21) when using -Y</font></li> + + <li><font color="#ff0000">Fixed a few bugs in +vbr-new when using -Y</font></li> + + <li><font color="#ff0000">Updated scalefactors +allocation scheme in vbr-new</font></li> + + <li>Fixed mingw32 configure problems</li> + + <li>Resolved some compiler warnings</li> + + <li>Updated command-line visualisation</li> + + </ul> + + </li> + + <li>Gabriel Bouvigne: + <ul> + + <li>Changed some FLOAT8 to FLOAT</li> + + <li>Added project files for VC7</li> + + <li><font color="#ff0000">Reworked -q1 and -q0</font></li> + + <li><font color="#ff0000">Updated presets</font></li> + + <li><font color="#ff0000">Fixed an error in +ISO quantization on systems not using the IEEE754 hack</font></li> + + <li><font color="#3366ff">Faster quantization</font></li> + + <li><font color="#3366ff">SSE version of +init_xrpow</font></li> + + </ul> + + </li> + + <li>Rogério Brito: + <ul> + + <li>Updated Debian packaging</li> + + <li>Documentation work</li> + + </ul> + + </li> + + <li>Chris Miller: + <ul> + + <li>Support for x64 platform SDK in makefile.msvc</li> + + </ul> + + </li> + +</ul> + +<br> + +<h3>LAME 3.96.1 July 25 2004</h3> + +<ul> + + <li>Robert Hegemann: + <ul> + + <li><font color="#ff0000">Fixed a rare bug in +vbr-new (could lead to crashes or data corruption)</font></li> + + </ul> + + </li> + + <li>Gabriel Bouvigne: + <ul> + + <li>some fixes in ACM codec</li> + + <li>fixed padding when encoding to 320kbps</li> + + <li><font color="#ff0000">fixed block size +selection for mid and side channels</font></li> + + </ul> + + </li> + +</ul> + +<br> + +<h3>LAME 3.96 April 11 2004</h3> + +<ul> + + <li>Gabriel Bouvigne: + <ul> + + <li><font color="#ff0000">new quantization +selection mode (used in ABR/CBR)</font></li> + + <li><font color="#ff0000">set sfscale for +ABR/CBR up to 160kbps</font></li> + + </ul> + + </li> + +</ul> + +<br> + +<h3>LAME 3.96 beta 2 March 28 2004</h3> + +<ul> + + <li>Takehiro Tominaga: + <ul> + + <li><font color="#3366ff">removed unnecessary +integer convertion in resampling</font></li> + + </ul> + + </li> + + <li>Robert Hegemann: + <ul> + + <li><font color="#ff0000">reworked scalefactor +allocation in vbr-new</font></li> + + <li>fixed a freeformat decoding problem</li> + + </ul> + + </li> + + <li>Gabriel Bouvigne: + <ul> + + <li><font color="#ff0000">updated minimal +bitrate for V1 and V2</font></li> + + </ul> + + </li> + + <li>Aleksander Korzynski: + <ul> + + <li>added ability to disable ReplayGain analysis</li> + + </ul> + + </li> + +</ul> + +<br> + +<h3>LAME 3.96 beta March 7 2004</h3> + +<ul> + + <li>Takehiro Tominaga: + <ul> + + <li>fixed decoding issue</li> + + </ul> + + </li> + + <li>Aleksander Korzynski: + <ul> + + <li>changed internal ReplayGain handling</li> + + <li>fixed some issues when ReplayGain is used with +resampling</li> + + </ul> + + </li> + + <li>Robert Hegemann: + <ul> + + <li>added standard ISO quantization for vbr-new, used at +lower quality settings</li> + + <li><font color="#3366ff">faster count_bits +for vbr-new</font></li> + + <li><font color="#3366ff">faster +find_scalefac_ave function for vbr-new</font></li> + + <li><font color="#ff0000">fixed an out of +array access in psychoacoustic models; this bug could make some psy +calculations worthless and sometimes let lame crash</font></li> + + <li><font color="#ff0000">fixed an error on +silent scalefactor bands; this bug resulted in huffman data overrun +problems while decoding, resulting in audible glitches</font></li> + + <li>fixed a freeformat decoding bug</li> + + </ul> + + </li> + + <li>Gabriel Bouvigne: + <ul> + + <li><font color="#ff0000">adjusted short block +thresholds</font></li> + + <li>fixed some array addressing bugs</li> + + <li>made ReplayGain analysis reentrant</li> + + </ul> + + </li> + + <li>David Chandler: fixed a crash in quantize_xrpow </li> + + <li>Michal Bacik: fixed a crash when using 8kHz </li> + + <li>Goran Markovic: fixed some decoding bugs </li> + + <li>John Edwards: fixed a too small buffer in ReplayGain code</li> + +</ul> + +<br> + +<h3>LAME 3.95.1 January 12 2004</h3> + +<ul> + + <li>Gabriel Bouvigne: + <ul> + + <li>fixed a crash when using vbr-new</li> + + <li>changed ReplayGain reference level to 89dB</li> + + </ul> + + </li> + +</ul> + +<br> + +<h3>LAME 3.95 January 11 2004</h3> + +<ul> + + <li>Gabriel Bouvigne: + <ul> + + <li><font color="#ff0000">fixed lowpass values +when using vbr with mono files</font></li> + + <li><font color="#3366ff">faster quantization +loops</font></li> + + <li><font color="#3366ff">faster count_bits</font></li> + + <li>fixed a buffer requirement error in ACM codec</li> + + </ul> + + </li> + + <li>Takehiro TOMINAGA: + <ul> + + <li>fixed mpglib and other decoding support code to prevent +the crash when invalid mp3 input</li> + + </ul> + + </li> + + <li>removed Layer I decoding support</li> + + <li><font color="#3366ff">use FastLog and IEEE 754 +hack on PowerPC too (approx. 10 percent faster)</font></li> + +</ul> + +<br> + +<h3>LAME 3.94 beta December 15 2003</h3> + +<ul> + + <li>Takehiro Tominaga: + <ul> + + <li><font color="#ff0000">fixed block +switching of nspsytune</font></li> + + <li><font color="#ff0000">best huffman divide +in the inner loop.</font> This should improve the quality, but +PAINFULLY slow. So it is not enabled by default. Use -q0 to use it.</li> + + <li>Changed -q option mapping. "-q2" until version 3.93 is +now "-q3".</li> + + <li><font color="#ff0000">saving bits by +better scalefactor storing</font></li> + + <li>removed Vorbis support</li> + + <li><font color="#ff0000">substep quantization.</font>This +should help breaking the SFB21 bloating problem</li> + + <li><font color="#ff0000">made psychoacoustic +model aware of ATH adjustements</font></li> + + <li><font color="#ff0000">use ATH value as +short block masking lower limit</font></li> + + <li><font color="#ff0000">several fixes in +psychoacoustic model</font></li> + + <li>more robust decoding</li> + + </ul> + + </li> + + <li>Mark Taylor / Gabriel Bouvigne: fixed issues in VBR header</li> + + <li>Mark Taylor: workaround against some hardware decoder +defficiencies</li> + + <li>Aleksander Korzynski: ability to compute the "Radio" +ReplayGain and detect clipping on the fly. The ReplayGain value is +stored in the Lame tag.</li> + + <li>Gabriel Bouvigne: + <ul> + + <li><font color="#ff0000">work on presets</font></li> + + <li><font color="#ff0000">use presets by +default for cbr/abr</font></li> + + <li><font color="#ff0000">use presets by +default for vbr</font></li> + + <li><font color="#ff0000">analog silence +detection in partitionned sfb21</font></li> + + <li><font color="#3366ff">do not compute noise +in upper 0 part of the spectrum</font></li> + + <li><font color="#3366ff">only compute noise +in modified scalefactor bands</font></li> + + </ul> + + </li> + + <li>Guillaume Lessard: + <ul> + + <li>nogap related changes</li> + + </ul> + + </li> + + <li>Alexander Leidinger: + <ul> + + <li>prevent closing the input fd prematurely if the input +is a named pipe</li> + + </ul> + + </li> + +</ul> + +<br> + +<h3>LAME 3.93.1 December 1 2002</h3> + +<ul> + + <li>Gabriel Bouvigne: + <ul> + + <li>preset medium added to the dll interface</li> + + <li><font color="#ff0000">fix for abr/cbr +presets</font></li> + + <li><font color="#ff0000">fix -q0 switch</font></li> + + </ul> + + </li> + + <li>Alexander Leidinger: fix link problem on systems where +socket() resides in libsocket</li> + +</ul> + +<br> + +<h3>LAME 3.93 November 16 2002</h3> + +<ul> + + <li>Takehiro Tominaga: + <ul> + + <li><font color="#ff0000">bit allocation for +pre-echo control improved for single channel encodings</font></li> + + <li><font color="#ff0000">substep noise shaping</font></li> + + <li><font color="#3366ff">optimizations by +changing data structure</font></li> + + <li><font color="#ff0000">noise shaping model +2 fix</font></li> + + <li><font color="#3366ff">nspsytune FIR filter +clean up</font></li> + + <li><font color="#ff0000">fix small psymodel +bugs(DC current estimation, preecho detection of non-VBR mode, and +nspsymode initialization)</font></li> + + <li>portability fixes for Tru64 UNIX</li> + + </ul> + + </li> + + <li>Albert Faber: some fixes in the DLL</li> + + <li>Simon Blandford: fixes for channel scaling in mono mode</li> + + <li><font color="#3366ff">Dominique Duvivier: some +optimizations and a faster log10 function</font></li> + + <li>Mark Taylor: + <ul> + + <li>some tag related fixes in the direct show filter and in +the ACM codec</li> + + <li><font color="#3366ff">fixed a mono +encoding bug found by Justin Schoeman</font></li> + + <li>calc_noise bug fix</li> + + <li>other fixes</li> + + </ul> + + </li> + + <li>Alexander Leidinger: + <ul> + + <li>update to autoconf 2.53, rewrite some configure tests</li> + + <li>Akos Maroy: determine gcc version even with gcc 3.1</li> + + <li>Andrew Bachmann: compile shared libs on BeOS (and +perhaps other arches)</li> + + <li>ultrasparc switches for gcc 3.1</li> + + <li>fixes for SunOS 4.x</li> + + <li>fixes for 64bit arches</li> + + <li>CFLAGS fix for IRIX</li> + + <li>don't override CFLAGS if exptopt isn't requested</li> + + </ul> + + </li> + + <li>Robert Hegeman: + <ul> + + <li><font color="#3366ff">some fixes</font></li> + + <li><font color="#ff0000">some fixes for VBR</font></li> + + </ul> + + </li> + + <li>Gabriel Bouvigne: + <ul> + + <li>--noasm switch. Might help Cyrix/Via users</li> + + <li><font color="#ff0000">presets and +alt-presets merged</font></li> + + </ul> + + </li> + +</ul> + +<br> + +<h3>LAME 3.92 April 14 2002</h3> + +<ul> + + <li><font color="#ff0000">Alexander +Leidinger: add non linear psymodel (compile time option, +disabled by default)</font>, workaround a bug in gcc 3.0.3 +(compiler options, based upon suggestions from various people, see +archives and changelog for more)</li> + + <li>Steve Lhomme: ACM wrapper (MS-Windows codec)</li> + + <li><font color="#3366ff">Steve Lhomme: +less memory copying on stereo (interleaved) input</font></li> + + <li> <font color="#ff0000">Takehiro Tominaga: +Inter-channel masking, enables with --interch x option</font></li> + + <li> For buggy versions of gcc compiler (2.96*), back off on +some of the advanced compiler options<br> + + </li> + +</ul> + +<br> + +<h3>LAME 3.91 December 29 2001</h3> + +<ul> + + <li><font color="#ff0000">Darin +Morrison: Bugfix for --alt-preset (for content with low +volume, clean vocals), only important for the "fast standard" preset</font> + </li> + + <li>Alexander Leidinger: + <ul> + + <li>add some missing files to the distribution</li> + + <li>add --alt-preset to the man page</li> + + </ul> + + </li> + +</ul> + +<br> + +<h3>LAME 3.90 December 21 2001</h3> + +<ul> + + <li><font color="#ff0000">Many small improvements +and bug fixes not added to history</font></li> + + <li><font color="#ff0000">John +Dahlstrom: more fine tuning on the auto adjustment of the ATH</font></li> + + <li><font color="#3366ff">Robert +Hegemann: small speed and quality improvements for the old +VBR code (--vbr-old).</font> </li> + + <li><font color="#ff0000">Robert +Hegemann: some short block bug fixes</font> </li> + + <li><font color="#ff0000">Robert +Hegemann: Big improvements to --vbr-mtrh, now encodes much +more frequencies over 16khz</font> </li> + + <li><font color="#ff0000">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)</font> </li> + + <li>Robert Hegemann: reordering of --longhelp to give +more information, --extrahelp dropped </li> + + <li>Darin Morrison: Totally revamped and extremely +high quality unified preset system and other general quality +improvements now available with --alt-presets: + <ul> + + <li> <font color="#ff0000">some improvements +to psychoacoustics (vast improvements over default L.A.M.E. modes) when +--alt-preset is used including:</font> + + <ul> + + <li> <font color="#ff0000">Improved tuning +of short block usage.</font></li> + + <li> <font color="#ff0000">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.</font></li> + + <li> <font color="#ff0000">Improved joint +stereo usage. Thresholds are better tuned now and fix some "dropout" +problems L.A.M.E. suffers from on clips like serioustrouble.</font></li> + + <li> <font color="#ff0000">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.</font></li> + + <li> <font color="#ff0000">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.</font></li> + + <li> 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.</li> + + </ul></li> + + <li> --alt-presets replace the --dm-presets and "metal" +preset is removed and replaced with generic abr and cbr presets.</li> + + <li> --alt-preset extreme (note the 'e') replaces xtreme to +help eliminate some confusion</li> + + <li> --alt-preset vbr modes now have a fast option which +offers almost no compromise in speed.</li> + + <li> --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.</li> + + <li> --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).</li> + + <li> Use --alt-preset help for more information.</li> + + </ul> + + </li> + + <li>Roel VdB: more tuning on the --r3mix preset </li> + + <li>Jon Dee, Roel VdB: INFO tag</li> + + <li>Alexander Leidinger, mp3gain@hotmail.com: added +--scale-l and --scale-r to scale stereo channels independantly </li> + + <li>Takehiro Tominaga: <font color="#ff0000">new +noise shaping mode, offering more "cutting edge" shaping according to +masking, enabled via -q0</font> </li> + + <li>Mark Taylor: More work on --nogap </li> + + <li>Gabriel Bouvigne: Small changes to abr code for +more accurate final bitrate </li> + + <li>Gabriel Bouvigne, mp3gain@hotmail.com: +Preliminary <a href="http://www.replaygain.org"> +ReplayGain</a> analysis code added (not functional yet) </li> + + <li>Gabriel Bouvigne, Alexander Leidinger: +Documentation updates </li> + + <li>John Dahlstrom, DSPguru@math.com: floating point +interface function in the Windows DLL</li> + +</ul> + +<br> + +<h3>LAME 3.89beta July 5 2001</h3> + +<ul> + + <li> John Stewart: long filename support for Win9x/NT.</li> + + <li> Takehiro Tominaga: LAME can calculate the CRC of +VBR header, so now "lame -pv" works fine.</li> + + <li><font color="#ff0000">Robert +Hegemann: Improvements of the new VBR code (--vbr-mtrh).</font></li> + + <li><font color="#3366ff">Robert Hegemann: New VBR +code (--vbr-mtrh) is now defaulted to get more feedback. The VBR speed +is now on par with CBR. We will use the old VBR code in the release.</font></li> + + <li><font color="#ff0000">Gabriel Bouvigne: Change +of the maximum frame size limit. LAME should now be more friendly with +hardware players.</font></li> + + <li>Gabriel Bouvigne: Size of VBR is now more balanced +according to the -V value.</li> + + <li>Alexander Leidinger: Finished the implementation of the +set/get functions.</li> + + <li>John Dahlstrom: LAME now handles 24bits input</li> + + <li>Mark Taylor: bugs in lame --decode causing truncation of +mp3 file fixed</li> + + <li>Mark Taylor: preliminary --nogap support</li> + + <li>"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. + <br> + + </li> + +</ul> + +<h3> LAME 3.88beta March 25 2001</h3> + +<ul> + + <li> <font color="#ff0000">A lot of work that was +never added to the History!</font></li> + + <li> <font color="#ff0000">Frank Klemm and +Gabriel Bouvigne: New ATH formula. Big improvement +for high bitrate encodings.</font></li> + + <li> <font color="#ff0000">Takehiro Tominaga: +Temporal masking</font></li> + + <li> <font color="#ff0000">Gabriel Bouvigne/Mark +Taylor: auto adjustment of ATH</font></li> + + <li> <font color="#ff0000">Robert +Hegemann: Better outer_loop stopping criterion. +Enabled with -q2 or better.</font></li> + + <li> <font color="#ff0000">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.</font></li> + + <li> <font color="#ff0000">Takehiro Tominaga: +Interframe, shortblock temporal masking.</font></li> + + <li> 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 :-(</li> + + <li> <font color="#000000">Naoki Shibata:</font> + + <ul> + + <li> <font color="#ff0000">improvements to + psychoacoustics</font><font color="#000000"> + (--nspsytune)</font> + + <li> <font color="#ff0000">BUG in long block + pre echo control fixed </font><font color="#000000"> + (some out of range array access in M/S psychoacoustics)</font></li> + + </ul> + </li> + + <li> <font color="#000000">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.</font></li> + + <li> <font color="#000000">Alexander +Stumpf: improved lame.bat for 4Dos users</font></li> + + <li> <font color="#000000">Mark Taylor: Several +bugs fixed in the resampling code.</font></li> + + <li> <font color="#000000">Frank Klemm, Robert +Hegemann: added assembler code for CPU +feature detection on runtime (MMX, 3DNow, SIMD)</font></li> + + <li> <font color="#3366ff">Takehiro Tominaga: +3DNow FFT code.</font></li> + + <li> <font color="#000000">Florian Bome, +Alexander Leidinger: more work on +configure stuff</font></li> + + <li> <font color="#000000">Alexander +Leidinger: automake/libtool generated Makefiles and +TONS of other work.</font></li> + + <li> <font color="#000000">Alexander +Leidinger: Much work towards shared library style +API.</font></li> + + <li> <font color="#000000">Anonymous: New more +efficient RTP code.</font></li> + + <li> <font color="#ff0000">Mark Taylor: +psycho-acoustic data now computed for all scalefactor bands (up to 24 +kHz)</font></li> + + <li> <font color="#ff0000">Mark Taylor, Takehiro +Tominaga: All ISO table data replaced by formulas - should improve +MPEG2.5 results for which we never had correct table data.</font></li> + +</ul> + +<h3> LAME 3.87alpha September 25 2000</h3> + +<ul> + + <li> Mark Taylor: Bug fixed in LAME/mpglib error +recovery when encountering a corrupt MP3 frame during +*decoding*.</li> + + <li> Albert Faber: added LayerI+II decoding support</li> + + <li> <font color="#000000">Frank Klemm: +added improved CRC calculation</font></li> + + <li> <font color="#000000">Frank Klemm: +substantial code cleanup/improvements</font></li> + + <li> Robert Hegemann: Bug fixes + + <ul> + + <li> <font color="#ff0000">in huffman_init</font>, +could lead to segmentation faults (only in rare cases, most likely at +lower sample rates)</li> + + <li> <font color="#ff0000">M/S switching at +lower sample rates</font> (the fact there is no 2nd granule was +ignored)</li> + + </ul> + </li> + <li> <font color="#3366ff">Robert +Hegemann: speed up in VBR</font></li> + + <li> Jarmo Laakkonen: Amiga/GCC settings for +Makefile.unix.</li> + + <li> Magnus Holmgren: README and Makefile for (free) +Borland C++ compiler. Will also compile lame_enc.dll, but +this is untested.</li> + + <li> Florian Bome: LAME finally has +a ./configure script!!</li> + +</ul> + +<h3> LAME 3.86beta August 6 2000</h3> + +<ul> + + <li> Christopher Wise: A makefile for DJGPP, the DOS +version of gcc. Now most windows users should be able to +compile LAME with minimal effort.</li> + + <li> <font color="#ff0000">Robert +Hegemann: old VBR: fixed some bugs and +Takehiro's scalefac_scale feature (not yet on by +default.) older LAME versions did not allow to spent more +than 2500 bits of 4095 possible bits to a granule per channel, now +fixed.</font></li> + + <li> Robert Hegemann: new VBR: +analog silence treatment like in old VBR</li> + + <li> William Welch: Improved options for Linux/Alpha +gcc and ccc compilers in Makefile.</li> + + <li> Mathew Hendry: setting appropriate CRC bit for +additional Xing-VBR tagging frame</li> + + <li> Don Melton: added ID3 version 2 TAG support</li> + + <li> <font color="#000000">John Dahlstrom: fixed +bug allowing timing information (for status in command line encoder) to +overflow.</font></li> + + <li> <font color="#000000">Tamito KAJIYAMA, Fixed +several bugs in the LAME/Vorbis interface.</font></li> + + <li> <font color="#000000">Mark Taylor: +lame --decode will recognize <a href="http://albumid.cjb.net">Album +ID tags</a></font></li> + + <li> <font color="#ff0000">Naoki +Shibata: Additive masking and other improvements to psycho +acoustics. (not yet on by default)</font></li> + +</ul> + +<h3> LAME 3.85beta July 3 2000</h3> + +<ul> + + <li> <font color="#ff0000">Takehiro +Tominaga: mid/side stereo demasking thresholds updated.</font></li> + + <li> Takehiro Tominaga: New short block MDCT coefficient data +structure. Should allow for future speed improvements.</li> + + <li> Robert Hegemann: fixed bug in old VBR routine, +the --noath mode messed up the VBR routine resulting in very large files</li> + + <li> Robert Hegemann: found bugs in some sections when using 32 +bit floating point. Default is now back to 64bit floating +point.</li> + + <li> <font color="#ff0000">Takehiro +Tominaga: Modified PE formula to use ATH.</font></li> + + <li> <font color="#000000">S.T.L.: +README.DJGPP - instructions for compiling LAME with DJGPP, the dos +version of gcc.</font></li> + +</ul> + +<h3> LAME 3.84beta June 30 2000</h3> + +<ul> + + <li> Mark Weinstein: .wav file output (with --decode +option) was writing the wrong filesize in the .wav file. Now +fixed.</li> + + <li> Mark Taylor: (optional) Vorbis support, both +encoding and decoding. LAME can now produce .ogg files, or +even re-encode your entire .ogg collection into +mp3. (Just kidding: it is always a bad idea to +convert from one lossy format to another)</li> + + <li> ?: Bug fixed causing VBR to crash under +windows. (pretab[] array overflow)</li> + + <li> Sergey Sapelin: Another bug found in the mpg123 MPEG2 +tables. Now fixed for the mpg123 based decoder in LAME.</li> + + <li> Marco Remondini: VBR histogram works in +win32. compile with -DBRHIST -DNOTERMCAP</li> + + <li> <font color="#ff0000">Takehiro +Tominaga: LAME CBR will now use scalefac_scale to expand the +dynamic range of the scalefactors.</font></li> + + <li> <font color="#000000">Iwasa Kazmi: +Library improvements: exit()'s, printf, fprintf's are being +replaced by interceptable macros.</font></li> + +</ul> + +<h3> LAME 3.83beta May 19 2000</h3> + +<ul> + + <li> <font color="#ff0000">Mark Taylor: +Bug in buffering routines: in some cases, could cause +MDCT to read past end of buffer. Rare in MPEG2, +even more rare for MPEG1, but potentially serious!</font></li> + + <li> Mark Taylor: MDCT/polyphase filterbank was not +being "primed" properly. Does not effect output unless you +set the encoder delay lower than the default of 576 samples.</li> + + <li> <font color="#ff0000">Mark Taylor: +"vdbj" and "Caster" found several VBR bugs (now +fixed): 1. Analog silence detection only +checked frequencies up to 16 kHz. 2. VBR mode could +still somehow avoid -F mode. 3. VBR mode would +ignore noise above 16 kHz (scalefactor band 22), Now calc_noise1 will +compute the noise in this band when in VBR mode. Not +calculated in CBR mode since CBR algorithm has no way of +using this information.</font></li> + + <li> Mark Taylor: scalefactor band 22 info +(masking(=ATH), noise and energy) now displayed in frame +analyzer.</li> + + <li> <font color="#ff0000">VBR code ATH tuning +was disabled by accident in 3.81, now fixed.</font></li> + + <li> <font color="#000000">Mark Taylor: +lame --decode will produce .wav files. (oops - size is off by +a factor of 4)</font></li> + +</ul> + +<h3> LAME 3.82beta May 11 2000</h3> + +<ul> + + <li> Robert Hegemann: Fixed bug in high bitrate joint +stereo encodings.</li> + + <li> <font color="#3366ff">Naoki +Shibata: new long block MDCT routine</font></li> + +</ul> + +<h3> LAME 3.81beta May 8 2000</h3> + +<ul> + + <li> all ISO code removed!</li> + + <li> <font color="#3366ff">Takehiro Tominaga and +Naoki Shibata: new window subband routines.</font></li> + + <li> <font color="#000000">Naoki +Shibata: Bug fix in mpglib (decoding) lib: in some +cases, MDCT coefficients from previous granule was incorrectly used for +the next granule.</font></li> + + <li> <font color="#ff0000">ISO 7680 bit buffer +limitation removed. It can be reactivated with +"--strictly-enforce-ISO" Please report any trouble with high +bitrates.</font></li> + +</ul> + +<h3> LAME 3.80beta May 6 2000</h3> + +<ul> + + <li> <font color="#ff0000">Takehiro +Tominaga: more efficient and faster huffman encoding!</font></li> + + <li> <font color="#ff0000">Takehiro Tominaga and +Mark Taylor: much improved short block compression!</font></li> + + <li> <font color="#000000">Tomasz Motylewski and +Mark Taylor: MPEG2.5 now supported!</font></li> + + <li> <font color="#000000">Mark Taylor: +incorporated Takehiro's bitstream.c! bitstream.c used by +default, but old ISO bitstream code can also be used.</font></li> + + <li> <font color="#ff0000">Scott Manley +and Mark Taylor: good resampling routine finaly in +LAME. uses a 19 point FIR filter with Blackman +window. Very slow for non integer resampling ratios.</font></li> + + <li> <font color="#000000">Iwasa Kazmi: +fixed SIGBUS error: VBR and id3 tags were using data after it +was free()'d.</font></li> + + <li> <font color="#ff0000">Robert +Hegemann: Improved VBR tuning. #define +RH_QUALITY_CONTROL and #RH_SIDE_VBR now the defaults.</font></li> + + <li> <font color="#000000">Robert +Hegemann: LAME version string now added to +ancillary data.</font></li> + + <li> Kimmo Mustonen: VBR histogram support for Amiga.</li> + + <li> Casper Gripenberg: VBR stats (but not histogram) +for DOS verson.</li> + + <li> Robert Hegemann: rare VBR overflow bug fixed.</li> + + <li> Zack: -F option strictly enforces the VBR min +bitrate. Without -F, LAME will ignore the minimum bitrate +when encoding analog silence.</li> + + <li> Shawn Riley: User can now specify a compression +ratio (--comp <arg>) instead of a bit rate. +Default settings based on a compression ratio of 11.0</li> + + <li> Mark Taylor: free format bitstreams can be +created with --freeformat, and specify any integer bitrate from 8 to +320kbs with -b.</li> + + <li> Mark Taylor: lame be used as a decoder (output raw pcm +only): lame --decode input.mp3 output.pcm</li> + +</ul> + +<h3> LAME 3.70 April 6 2000</h3> + +<ul> + + <li> "LAME 3.69beta" becomes LAME 3.70 "stable"</li> + +</ul> + +<h3> LAME 3.69beta April 6 2000</h3> + +<ul> + + <li> "spahm": default mode selection bug +fixed. In some cases, lame was defaulting to regular stereo +instead of jstereo when the user did not specify a mode.</li> + +</ul> + +<h3> LAME 3.68beta April 4 2000</h3> + +<ul> + + <li> Mark Taylor: mono encoding bug in DLL fixed.</li> + + <li> Ingo Saitz: bug in --cwlimit argument parsing fixed.</li> + + <li> <font color="#ff0000">Scott Manly: bug in +4-point resample code fixed.</font></li> + +</ul> + +<h3> LAME 3.67beta March 27 2000</h3> + +<ul> + + <li> <font color="#ff0000">Robert +Hegemann: jstereo now enabled for MPEG2 encodings</font></li> + + <li> Mark Taylor: old M/S stereo mode which used L/R maskings +has been removed.</li> + + <li> Mark Taylor: Xing MPEG2 VBR headers now working.</li> + + <li> <font color="#ff0000">Mark Taylor: +When quantized coefficients are all 0 in a band, set scalefactors to 0 +also to save a few bits.</font></li> + + <li> <font color="#000000">Ingo Saitz: +Problems with framesize calculation when using -f fast-math option +fixed.</font></li> + +</ul> + +<h3> LAME 3.66beta March 21 2000</h3> + +<ul> + + <li> Bug fixes in BladeEnc DLL, possible click in last mp3 +frame, VBR historgram display, byteswapping option, ASM quantize +routines work for both float and double.</li> + +</ul> + +<h3> LAME 3.65beta March 17 2000</h3> + +<ul> + + <li> Enabled ASM version of quantize_xrpow() - accidently +disabled in lame3.64.</li> + +</ul> + +<h3> LAME 3.64beta March 16 2000</h3> + +<ul> + + <li> Don Melton: id3v1.1 tags & id3 bugfixes</li> + + <li> <font color="#ff0000">Gabriel +Bouvigne: L/R matching block type fix</font></li> + + <li> <font color="#ff0000">Bug fixed which was +allowing quantized values to exceed the maximum when not using -h</font></li> + + <li> <font color="#3366ff">Mark Taylor: Fitlers +based on polyphase filterbank. should be slightly better +since the responce is independent of the blocktype, and they are +slightly faster.</font></li> + + <li> Mark Taylor: API: the API changed slightly - and +this should be the final version. There is a new routine: +lame_encode_buffer() which takes an arbritray sized input buffer, +resamples & filters if necessary, encodes, and returns the +mp3buffer. There are also several new #defines, so it is +possible to compile a simple encoding library with no decoding or file +I/O or command line parsing. see the file API for details.</li> + + <li> Mark Taylor: MSVC stuff: lame.exe (with and + without the frame analyzer) and the CDex lame_enc.dll + should compile under MSVC. The MSVC5 project files may need + some tweaking. In particular, + you need to make sure LAMEPARSE, LAMESNDFILE and HAVEMPGLIB + are defined. (and HAVEGTK for the GTK stuff).</li> +</ul> + +<h3> LAME 3.63beta February 20 2000</h3> + +<ul> + + <li> Robert Hegemann: FPE with -h fixed?</li> + + <li> Mathey Hendry: FPE error catching for Cygwin, +FPE fix for vbr mode and output to /dev/null</li> + + <li> Jeremy Hall: Fixed problems with input files +where the number of samples is not known.</li> + + <li> <font color="#3366ff">Mathew +Hendry: ASM quantize_xrpow() for GNU i386</font></li> + + <li> <font color="#3366ff">Wilfried +Behne quantize_xrpow ()for PowerPC and non-ASM</font></li> + + <li> <font color="#3366ff">Takehiro +Tominaga: GOGO FFTs (not yet used?)</font></li> + +</ul> + +<h3> LAME 3.62beta February 9 2000</h3> + +<ul> + + <li> <font color="#000000">Iwasa Kazmi: +frame analyzer short block display of single subblocks (press +1,2 or 3)</font></li> + + <li> <font color="#000000">Ingo Saitz: +--help option added, with output to stdout</font></li> + + <li> <font color="#ff0000">Alfred Weyers: short +block AAC spreading function bug fixed</font></li> + + <li> <font color="#3366ff">Takehiro +Tominaga: new scalefac data structure - improves performance!</font></li> + + <li> <font color="#ff0000">Lionel +Bonnet: Bug fixed in MPEG2 scalefactor routine: scalefactors +were being severly limited.</font></li> + + <li> <font color="#3366ff">Takehiro +Tominaga: faster FFT routines from. These routines +are also compatible with the GOGO routines, in case someone is +interested in porting them back to LAME.</font></li> + + <li> <font color="#3366ff">Sigbjørn +Skjæret, Takehiro Tominaga: faster pow() code.</font></li> + + <li> <font color="#ff0000">Joachim +Kuebart: Found some unitialized variables that were effecting +quality for encodings which did not use the -h option (now fixed).</font></li> + + <li> Mark Taylor: More modularization work. +It is now possible to use LAME as a library where you can set the +encoding parameters directly and do your own file +i/o. The calling program is now it's own mp3 +output. For an example of the LAME API, see main.c, or +mp3rtp.c or mp3x.c. These can all be compiled as stand alone +programs which link with libmp3lame.a.</li> + + <li> Felix vos Leitner: mp3rtp fixes. +mp3rtp is a standalone program which will encode and stream with RTP.</li> + + <li> Robert Hegemann: Information written to stderr +displaying exactly which type of lowpass filter (if any) is being used.</li> + + <li> Iwasa Kazmi: mpglib (the mpg123 decoder) scsfi +decoding fixes.</li> + + <li> Takehiro Tominaga: More mpglib scsfi decoding +fixes.</li> + +</ul> + +<h3> LAME 3.61beta January 14 2000</h3> + +<ul> + + <li> <font color="#ff0000">Mark Taylor: Fixed bug +with lowpass filters when using VBR with a 64kbs or lower min bitrate +setting.</font></li> + + <li> <font color="#ff0000">Takehiro +Tominaga: more efficient huffman encoding splitting.</font></li> + +</ul> + +<h3> LAME 3.60beta January 9 2000</h3> + +<ul> + + <li> Mark Taylor: Distribution now comes with self +test. Needs work to be automated, see 'make test' in Makefile.</li> + + <li> <font color="#ff0000">Mark Taylor: AAC +spreading function now the default</font></li> + + <li> Gabriel Bouvigne: updated HTML docs</li> + + <li> Felix von Leitner: compute correct file length from Xing +header (if present) when input file is a mp3 file</li> + + <li> Felix von Leitner: mp3rtp (standalone) program now +included. Not yet tested. mp3rtp +ip:port:ttl <infile> +/dev/null will stream directly to ip:port using RTP.</li> + +</ul> + +<h3> LAME 3.59beta January 4 2000</h3> + +<ul> + + <li> Takehiro Tominaga: --noath option. +Disables ATH maskings.</li> + + <li> Gabriel Bouvigne: updated HTML docs.</li> + + <li> Iwasa Kazmi: makefile fixes</li> + + <li> Mark Taylor: Fixed bug where first frame of data +was always overwritten with 0's. Thanks to 'gol'</li> + + <li> <font color="#ff0000">Mark Taylor: +bug fixes in mid/side masking ratios (thanks to Menno Bakker)</font></li> + + <li> Mark Taylor: replaced norm_l, norm_s table data +with formulas.</li> + +</ul> + +<h3> LAME 3.58beta December 13 1999</h3> + +<ul> + + <li> <font color="#ff0000">Segher +Boessenkool: More accurate quantization procedure! +Enabled with -h.</font></li> + + <li> <font color="#3366ff">Mathew Hendry, Acy +Stapp and Takehiro Tominaga: ASM optimizations for quantize_xrpow and +quantize_xrpow_ISO.</font></li> + + <li> Chuck Zenkus: "encoder inside" logo on web page</li> + + <li> Mark Taylor: a couple people have +asked for this. Allow LAME to overide +VBR_min_bitrate if analog_silence detected. +Analog_silence defined a la Robert: +energy < ATH.</li> + + <li> An Van Lam: Valid bitrates were being printed for layer 2, +not layer 3!</li> + + <li> Ethan Yeo: Makefile.MSVC updated</li> + + <li> Mark Stephens: updated all MSVC project files</li> + + <li> Robert Hegemann: lowpass and highpass filters +can be enabled with --lowpass, --highpass</li> + + <li> <font color="#ff0000">Mark Taylor: +MS switching is now smoother: ms_ratio average over 4 granules</font></li> + + <li> <font color="#ff0000">Takehiro +Tominaga: Scalefactor pre-emphasis fixed (and now turned back +on)</font></li> + + <li> <font color="#ff0000">Takehiro +Tominaga: Bug in M/S maskings: switch to turn on +stereo demasking code was buggy.</font></li> + +</ul> + +<h3> LAME 3.57beta November 22 1999</h3> + +<ul> + + <li> Sigbjørn Skjæret, patch to allow +encoding from 8bit input files when using LIBSNDFILE</li> + + <li> Mark Taylor: Automatic downsampling to nearest valid +samplerate.</li> + + <li> Mark Taylor: Scalefactor bands demarked on MDCT plot in +frameanalyzer</li> + + <li> Mark Taylor: Scalefactor preemphasis disabled for +now. The algorithm was often doing more harm than +good.</li> + +</ul> + +<h3> LAME 3.56beta November 19 1999</h3> + +<ul> + + <li> Kimmo Mustonen: portabilty code cleanup.</li> + + <li> Vladimir Marek: id3 genre patch.</li> + + <li> Conrad Sanderson: new applypatch script.</li> + + <li> Mark Taylor: Initial window type now "STOP_TYPE" to reduce +initial attenuation. This is needed because the new encoder +delay is so short. With a NORM_TYPE, the first 240 samples +would be attenuated.</li> + + <li> Mark Taylor: Padding at end of file now adjusted +(hopefully!) to produce as little padding as possible while still +guarantee all input samples are encoded.</li> + + <li> <font color="#ff0000">Takehiro +Tominaga: Reduced shortblock extra bit allocation formulas by +10% since new huffman coding is at least 10% more efficient.</font></li> + +</ul> + +<h3> LAME 3.55beta November 11 1999</h3> + +<ul> + + <li> Albert Faber: updated BladeEnc.dll</li> + + <li> Mark Taylor: Simple lowpass filter added to linear +downsampling routine.</li> + + <li> Nils Faerber: updated man page.</li> + + <li> Mark Taylor: All floating point variables are delcared +FLOAT or FLOAT8. Change the definition of FLOAT8 in +machine.h to run at 32bit preceision.</li> + + <li> Mark Taylor: Bug (introduced in 3.54beta) in +stereo->mono downsampling fixed.</li> + +</ul> + +<h3> LAME 3.54beta November 8 1999</h3> + +<ul> + + <li> Mark Taylor: Encoder delay is now 48 samples. +Can be adjusted to 1160 to sync with FhG (see ENCDELAY in +encoder.h) This is kind of amazing, since if Takehiro put his +MDCT/filterbank routine in a decoder, we could have a total +delay of only 96 samples.</li> + + <li> <font color="#ff0000">Mark Taylor: More +inconstancies found and fixed in MPEG2 tables.</font></li> + + <li> Mark Taylor: Resampling from an MP3 input file now +works. But we still dont have a lowpass filter so dont expect +good results.</li> + +</ul> + +<h3> LAME 3.53beta November 8 1999</h3> + +<ul> + + <li> <font color="#3366ff">Takehiro +Tominaga: Fixed MPEG2 problem in new MDCT routines. +Takehiro's combined filterbank/MDCT routine is now the +default. Removes all buffering from psymodel.c and the +filterbanks/MDCT routines.</font></li> + +</ul> + +<h3> LAME 3.52beta November 8 1999</h3> + +<ul> + + <li> By permission of copyright holders of all GPL code in +LAME, all GPL code is now released under a modified version +of the LGPL (see the README file)</li> + + <li> By popular demand, all C++ comments changed to C style +comments</li> + + <li> Mark Taylor: Linear resampling now works. Use +--resample to set an output samplerate different from the input +samplerate. (doesn't seem to work with mp3 input files, and +there is no lowpass filter, so dont expect good results just yet)</li> + + <li> <font color="#3366ff">Takehiro +Tominaga: Faster Huffman encoding routines</font></li> + +</ul> + +<font color="#3366ff">The following changes are disabled +because of MPEG2 problems. But to try them, set MDCTDELAY=48 +in encoder.h, instead of MDCTDELAY=528.:</font> +<ul> + + <li> <font color="#3366ff">Takehiro +Tominaga: New MDCT routines with shorter delay (48 samples +instead of 528) and even faster than the old routines.</font></li> + + <li> <font color="#3366ff">Takehiro +Tominaga: Removed extra buffering in psymodel.c</font></li> + +</ul> + +<h3> LAME 3.51 November 7 1999</h3> + +<ul> + + <li> Takehiro Tominaga: Bug in quantize.c absolute threshold of +hearing calculation for non-44.1 kHz input files.</li> + +</ul> + +<h3> LAME 3.50 November 1 1999</h3> + +<ul> + + <li> LAME 3.37beta becomes official LAME 3.50 release</li> + +</ul> + +<h3> LAME 3.37beta November 1 1999</h3> + +<ul> + + <li> <font color="#ff0000">Lionel +Bonnet: Found severe bug in MPEG2 Short block SNR.</font></li> + + <li> Sergey Sapelin: VBR Toc improvement.</li> + + <li> Sergey Dubov: fskip() routine</li> + + <li> Conrad Sanderson: replacement for +filterbank.c. Not much faster but amazingly simpler.</li> + +</ul> + +<h3> LAME 3.36beta October 25 1999</h3> + +<ul> + + <li> Albert Faber: more MSVC and BladeDLL updates</li> + + <li> Kimmo Mustonen: Much code cleanup and Amiga +updates</li> + + <li> Anton Oleynikov: Borland C updates</li> + + <li> Mark Taylor: More stdin fixes: For some reason, +forward fseek()'s would fail when used on pipes even though it is okay +with redirection from "<". So I changed all the forward +fseek()'s to use fread(). This should improve stdin support +for wav/aiff files. If you know the input file is raw pcm, +you can still use the '-r' option to avoid *all* seeking of any kind.</li> + +</ul> + +<h3> LAME 3.35beta October 21 1999</h3> + +<ul> + + <li> <font color="#ff0000">Leonid +Kulakov: Serious bug in MPEG2 scalefactor band tables fixed.</font></li> + + <li> Portability patches from: Anton Oleynikov, +Sigbjørn Skjæret, Mathew Hendry, Richard Gorton</li> + + <li> Alfred Weyers: compiler options, updated timestatus.</li> + + <li> Albert Faber: BladeDll and other updates (new +machine.h).</li> + + <li> Monty: updated Makefile to fix gcc inline math +bug.</li> + +</ul> + +<h3> LAME 3.34beta October 12 1999</h3> + +<ul> + + <li> <font color="#ff0000">Mark Taylor: Bug +fixed: minimum bitrate in VBR mode could be ignored for a few +frames.</font></li> + + <li> <font color="#ff0000">Mark Taylor: New +(minor) VBR tunings.</font></li> + + <li> Tim Ruddick: New wav/aiff header parsing +routines. Better parsing and fewer fseek()'s.</li> + + <li> Anton Oleynikov: patches to work with Borland C</li> + + <li> <font color="#ff0000">Gabriel +Bouvigne: Experimental voice option enabled with --voice</font></li> + +</ul> + +<h3> LAME 3.33beta October 11 1999</h3> + +<ul> + + <li> <font color="#ff0000">Robert Hegemann: RH +VBR mode now the default and only VBR mode. The new code will +always quantize to 0 distortion and the quality is increased by +reducing the masking from the psy-model. -X0 is still the +default for now.</font></li> + + <li> <font color="#ff0000">Robert Hegemann: new +-X5 mode</font></li> + + <li> Mathew Hendry: New timing code, removes the need for +HAVETIMES</li> + + <li> <font color="#3366ff">Mathew +Hendry: assembler quantize_xrpow for Windows</font></li> + + <li> Iwasa Kazmi: stdin/stdout patch for Windows</li> + + <li> Mark Taylor: New option: "--athonly" will ignore the +psy-model output and use only the absolute threshold of hearing for the +masking.</li> + +</ul> + +<h3> LAME 3.32beta October 8 1999</h3> + +<ul> + + <li> <font color="#3366ff">Takehiro +Tominaga: faster long block spreading function convolution +for non 44.1 kHz sampling frequencies, and faster short block spreading +function convolution for all sampling frequencies.</font></li> + + <li> <font color="#ff0000">Takehiro +Tominaga: Completly rewritten huffman table selection and +count_bits(). More efficient table selection results in many +more bits per frame.</font></li> + + <li> <font color="#ff0000">Takehiro +Tominaga: More efficient scalefac compress setting.</font></li> + + <li> <font color="#3366ff">Mike Cheng: new +calc_noise2()</font></li> + + <li> Alfred Weyers: patch for timestatus() seconds rollover</li> + +</ul> + +<h3> LAME 3.31beta September 28 1999</h3> + +<ul> + + <li> Albert Faber: updated his BladeDLL +code. This allows LAME to be compiled into a BladeEnc +compatiable .dll.</li> + + <li> <font color="#3366ff">Mike Cheng: faster +l3psycho_ener() routine.</font></li> + + <li> Sigbjørn Skjæret: more code cleanup.</li> + +</ul> + +<h3> LAME 3.30beta September 27 1999</h3> + +<ul> + + <li> Conrad Sanderson: ID3 tag code added (type +'lame' for instructions)</li> + + <li> new mdct.c from Mike Cheng (no faster, but much cleaner +code)</li> + + <li> Mathew Hendry: Microsoft nmake makefile and a couple other +changes for MSVC</li> + + <li> More modulization work: One input sound file +interface handles mp3's, uncompressed audio, with or without +LIBSNDFILE. Fixes (hopefully) a bunch of file I/O bugs +introduced in 3.29 (Mark Taylor)</li> + + <li> LAME will now print valid samplerate/bitrate combinations +(Mark Taylor)</li> + + <li> stdin/stdout fix for OS/2 (Paul Hartman)</li> + + <li> For mp3 input files, totalframes estimated based on +filesize and first frame bitrate. (Mark Taylor)</li> + + <li> Updated all functions with new style prototypes. +(Sigbjørn Skjæret)</li> + +</ul> + +<h3> LAME 3.29beta September 21 1999</h3> + +<ul> + + <li> <font color="#ff0000">Bug in bigv_bitcount +fixed. Loop.c was overestimating the number of bits needed, +resulting in wasted bits every frame. (Leonid A. Kulakov)</font></li> + + <li> <font color="#ff0000">Bug in +*_choose_table() fixed These routines would not +sellect the optimal Huffman table in some cases. +(Leonid A. Kulakov)</font></li> + + <li> <font color="#ff0000">Tuning of ATH +normalization (macik)</font></li> + + <li> Removed unused variables and fixed function prototypes +(Sigbjørn Skjæret)</li> + + <li> Sami Farin sent a .wav file +that LAME built in support choked on. I +added a slightly more sophisticated wav header parsing to handle this, +but if you have trouble, use libsndfile.</li> + + <li> Resampling hooks and options added. Buffering +and resampling routines need to be written.</li> + + <li> LAME will now take an mp3 file as input. When +resampling code is working, LAME will be able to (for example) convert +a high bitrate stereo mp3 to a low bitrate mono mp3 for streaming.</li> + +</ul> + +<h3> LAME 3.28beta September 15 1999</h3> + +<ul> + + <li> <font color="#ff0000">Serious bug fixed in +high frequency MDCT coefficients. Huffman coding was +reversing the order of the count1 block quadruples. +(Leonid A. Kulakov)</font></li> + + <li> nint() problems under Tru64 unix fixed and preprocessor +variable HAVE_NINT removed. (Bob Bell)</li> + + <li> Compiler warning fixes and code +cleanup (Sigbjørn Skjæret, +Lionel Bonnet)</li> + + <li> USAGE file now includes suggestions for +downsampling. For low bitrate encodings, proper downsampling +can give dramatically better results. (John Hayward-Warburton)</li> + +</ul> + +<h3> LAME 3.27beta September 12 1999</h3> + +<ul> + + <li> Several bugs in encode.c and l3bitstream.c fixed by Lionel +Bonnet.</li> + + <li> Bugs in new VBR (#define RH) formula for mono input file +and mid/side encoding fixed.</li> + +</ul> + +<h3> LAME 3.26beta September 10 1999</h3> + +<ul> + + <li> The "-m m" option (mono .mp3 file) will automatically mix +left and right channels if the input file is stereo. (Alfred +Weyers)</li> + + <li> <font color="#ff0000">New quant_compare +algorithm (method for deciding which of two quantizations is better) +enabled with -X4 (Greg Maxwell)</font></li> + + <li> <font color="#ff0000">New mid/side VBR bit +allocation formula. Mid channel bits are set by the quality +requirements, and then the side channel uses a reduced number of bits +(in a proportion coming from the fixed bitrate code). This +might not be optimal, but it should be pretty good and no one knows +what the optimal solution should be. (Greg Maxwell)</font></li> + + <li> <font color="#ff0000">New VBR (#define RH) +tunings based on detailed listening tests by Macik and Greg Maxwell.</font></li> + + <li> Sigbjørn Skjæret fixed several +compiler warnings (which turned out to be potential bugs)</li> + + <li> Takehiro Tominaga fixed a low bitrate bug in reduce_side()</li> + + <li> Alfred Weyers fixed some buffer overflows.</li> + + <li> <font color="#ff0000">New ATH (absolute +threshold of hearing) formula replaces buggy ISO code, and +adds analog silence treatment (removal of +coefficients below below ATH). These are turned on +by default but have not been fully tested. (Robert Hegemann)</font></li> + + <li> <font color="#ff0000">Bug in short block +spreading function fixed. (Robert Hegemann)</font></li> + +</ul> + +<h3> LAME 3.25beta August 22 1999</h3> + +<ul> + + <li> Sigbjørn Skjæret fixed a zero byte +malloc call. This bug was introduced in 3.24 and +causes problems on non Linux systems.</li> + + <li> Bit allocation routines would sometimes allocate more than +4095 bits to one channel of one granule. A couple of people +reported problems that might be caused by this, especially at higher +bitrates.</li> + + <li> Nils Faerber updated the man page and fixed many of the +compiler warnings.</li> + +</ul> + +<h3> LAME 3.24beta August 15 1999</h3> + +<ul> + + <li> This release contains the following new code (for +developers) which is disabled by default:</li> + + <li> Robert Hegemann: Completely overhauled VBR +code. Now computes exact number of bits required for the +given qualty and then quantized with the appropriate bitrate.</li> + + <li> Several new quantization quality measures.</li> + +</ul> + +<h3> LAME 3.23beta August 8 1999</h3> + +<ul> + + <li> Very nice continuously updated VBR histogram display from +Iwasa Kazmi. (disabled with --nohist).</li> + + <li> More modulerization work. The encoding engine +can now be compiled into libmp3lame, but the interface is awkward.</li> + + <li> <font color="#ff0000">Bug fixed in FFT Hann +window formula (Leonid A. Kulakov).</font></li> + + <li> New LAME logo on the download page. Created by +Chris Michalisles.</li> + + <li> <font color="#ff0000">Several VBR algorithm +improvements from Robert Hegemann. New quantization noise +metrics and VBR quality measure takes into account mid/side +encoding. Should produce smaller files with the same quality, +especially when using jstereo.</font></li> + +</ul> + +<h3> LAME 3.22beta July 27 1999</h3> + +<ul> + + <li> Downsampling (stereo to mono) bug with MPEG2 +fixed. (Mike Oliphant)</li> + + <li> Downsampling now merges L & R channels - before it +only took the L channel.</li> + + <li> More modularization and code cleanup from Albert Faber and +myself.</li> + + <li> Input filesize limit removed for raw pcm input +files. For other file types, LAME will still only read the +first 2^32 samples, (27 hours of playing time at 44.1 kHz).</li> + +</ul> + +<h3> LAME 3.21beta July 26 1999</h3> + +<ul> + + <li> <font color="#ff0000">Correct Mid/Side +masking thresholds for JSTEREO mode! This is enabled with +-h. It makes LAME about 20% slower since it +computes psycho-acoustics for L,R Mid and Side channels.</font></li> + + <li> <font color="#ff0000">"Analog silence" +threshold added. Keeps VBR from upping the bitrate during +very quite passages. (Robert.Hegemann)</font></li> + + <li> <font color="#ff0000">New VBR quality +setting from Robert Hegemann. It is based on the idea that +distortion at lower bit rates sounds worse than at higher bitrates, and +so the allowed distortion (VBR quality setting) is proportional to the +bitrate. Because of this, default minimum bitrate is now +32kbs.</font></li> + + <li> <font color="#ff0000">Expermental subblock +gain code enabled with -Z.</font></li> + + <li> New "-r" option for raw pcm input files. With +-r, LAME will not do any fseek()'s or look for wav and aiff headers on +the input file.</li> + + <li> Bug fixes in mp3x (frame analyzer) for viewing frames near +end of the file.</li> + + <li> Bug fixed to allow setting the sampling rate of raw pcm +input files.</li> + +</ul> + +<h3> LAME 3.20beta July 19 1999</h3> + +<ul> + + <li> Bug in get_audio.c fixed. Libsndfile wrappers +would not compile (Miguel Revilla Rodriguez)</li> + + <li> Nils Faerber found some unitialized variables and some +wierd extranous computations in filter_subband, now fixed. +This was causing seg faults on some machines.</li> + +</ul> + +<h3> LAME 3.19beta July 18 1999</h3> + +<ul> + + <li> <font color="#ff0000">Oops! Robert +Hegemann immediatly found a bug in the new (old -Z option) +quantization code. calc_noise1 was not returning tot_noise, +so non ms-stereo frames were buggy.</font></li> + +</ul> + +<h3> LAME 3.18beta July 17 1999</h3> + +<ul> + + <li> <font color="#ff0000">Many psycho-acoustic +bug fixes. Dan Nelson discovered a bug in MPEG2: For short +blocks, the code assumes 42 partition bands. MPEG1 sometimes +has less, MPEG2 can have more. In MPEG1, this bug would not +have effected the output if your compiler initializes static variables +to 0 on creation. In MPEG2 it leads to array out-of-bounds +access errors. Finally, there was a related bug in MPEG1/MPEG2, short +& long blocks where the energy above 16 kHz was all added to +partition band 0. (the lowest frequeny partition band!)</font></li> + + <li> <font color="#ff0000">The -Z option (Gabriel +Bouvigne's idea of using total quantization noise to choose between two +quantizations with the same value of "over") is now the +default. I believe this helps remove the trilling sound in +Jan's testsignal4.wav. The quality of testsignal2.wav and +testsignal4.wav are now better than Xing and getting closer to FhG.</font></li> + + <li> Bug fixes in frame & sample count for downsampling +mode. (ben "jacobs")</li> + + <li> Patches to improve modulization. (ben "jacobs")</li> + +</ul> + +<h3> LAME 3.17beta July 11 1999</h3> + +<ul> + + <li> substantial code cleanup towards goal of making LAME more +modular.</li> + +</ul> + +<h3> LAME 3.16beta July 11 1999</h3> + +<ul> + + <li> <font color="#ff0000">New tunings of window +switching, and better bit allocation based on pe. (Jan +Rafaj. improves both testsignal2.wav and testsignal4.wav).</font></li> + + <li> <font color="#ff0000">Bug in mid/side +quantization when side channel was zero fixed. (Albert Faber)</font></li> + + <li> Removed some extranous computations in l3psy.c (Robert +Hegemann)</li> + + <li> More detailed timing status info, including hours display. +(Sakari Ailus) and percentage indicator (Conrad Sanderson).</li> + + <li> <font color="#3366ff">Window_subband and +calc_noise1,calc_noise2 speedups. Quantize_xrpow speedup +should be significant on non GNU/intel systems. (Mike Cheng)</font></li> + + <li> <font color="#3366ff">Better initial guess +for VBR bitrate. Should speed up VBR encoding. +(Gabriel Bouvigne)</font></li> + + <li> More advanced .wav header parsing. fixes bugs +involving click in first frame. (Robert.Hegemann)</li> + + <li> Correct filesize and total frame computation when using +LIBSNDFILE (ben "jacobs")</li> + + <li> Click in last frame (buffering problem) when using +libsndfile fixed.</li> + + <li> Audio I/O code overhauled. There is now a +uniform audio i/o interface to libsndfile or the LAME built in wav/aiff +routines. All audio i/o code localized to get_audio.c.</li> + +</ul> + +<h3> LAME 3.15beta</h3> + +<ul> + + <li> times()/clock() problem fixed for non-unix OS. +(Ben "Jacobs")</li> + + <li> Fixed uninitialized pe[] when using fast mode. +(Ben "Jacobs")</li> + +</ul> + +<h3> LAME 3.13 June 24 1999</h3> + +<ul> + + <li> Patches for BeOS from Gertjan van Ratingen.</li> + + <li> Makefile info for OS/2 Warp 4.0 (from dink.org).</li> + + <li> Status display now based on wall clock time, not cpu time.</li> + + <li> mem_alloc no longer allocates twice as much memory as +needed (Jan Peman).</li> + +</ul> + +<h3> 3.12pre9</h3> + +<ul> + + <li> Updated BLADEDLL code to handle recent changes (Albert +Faber).</li> + + <li> Bug fixed in parsing options when not using GTK (Albert +Faber).</li> + + <li> <font color="#ff0000">MPEG2 Layer III psycho +acoustics now working.</font></li> + + <li> <font color="#3366ff">Improved huffman +encoding Chris Matrakidis. (10% faster). I dont know how he +finds these improvements! LAME with full quality now encodes +faster than real time on my PII 266.</font></li> + + <li> Fixed time display when encoding takes more than 60 +minutes.</li> + +</ul> + +<h3> 3.12pre8</h3> + +<ul> + + <li> <font color="#ff0000">New <a href="gpsycho/ms_stereo.html">mid/side stereo</a> +criterion. LAME will use mid/side stereo only when the +difference between L & R masking thresholds (averaged over all +scalefactors) is less then 5db. In several test samples it +does a very good job mimicking the FhG encoder.</font></li> + + <li> <font color="#ff0000">Bug in mid/side stereo +fixed: independent variation of mid & side channel +scalefactors disabled. Because of the way outer_loop is +currently coded, when encoding mid/side coefficietns using left/right +thresholds, you have to vary the scalefactors simultaneously.</font></li> + + <li> <font color="#ff0000">Bug in side/mid energy +ratio calculation fixed. (Thanks to Robert Hegemann)</font></li> + + <li> Default mode is stereo (not jstereo) if bitrate is chosen +as 192kbs or higher. Tero Auvinen first pointed out that FhG +seems to think at 160kbs, their encoder is so good it doesn't need +jstereo tricks. Since LAME is not as good as FhG, I am going to claim +that 192kbs LAME is so good it doens't need jstereo tricks, and thus it +is disabled by default.</li> + + <li> WAV header parsing for big-endian machines, and automatic +detection of big-endian machines. (Thanks to +Sigbjørn Skjæret).</li> + + <li> added 56 sample delay to sync LAME with FhG.</li> + + <li> MP3x (frame analyzer) can now handle MPEG2 streams.</li> + +</ul> + +<h3> 3.12pre7</h3> + +<ul> + + <li> MPEG2 layer III now working! lower bit rates +(down to 8kbs) and 3 more sampling frequencies: 16000, 22050, +24000Hz. Quality is poor - the psy-model does not yet work with these +sampling frequencies.</li> + + <li> Fixed "ERROR: outer_loop(): huff_bits < 0." bug +when using VBR.</li> + + <li> bash and sh scripts to run LAME on multiple files now +included. (from Robert Hegemann and Gerhard Wesp respectively)</li> + + <li> bug fix in encoding times for longer files from +(Alvaro Martinez Echevarria)</li> + + <li> yet another segfault in the frame analyzer fixed.</li> + + <li> ISO psy-model/bit allocation routines removed. +This allowed makeframe() to be made much simpler, and most of the +complicated buffering is now gone. Eventually I would like the encoding +engine to be a stand alone library.</li> + +</ul> + +<h3> 3.12pre6</h3> + +<ul> + + <li> <font color="#ff0000">Better VBR +tuning. Find minimum bitrate with distortion less than the +allows maximum. A minimum bit rate is imposed on frames with +short blocks (where the measured distortion can not be +trusted). A minimum frame bitrate can be specified +with -b, default=64kbs.</font></li> + + <li> <a href="http://www.zip.com.au/%7Eerikd/libsndfile">LIBSNDFILE</a> +support. With libsndfile, LAME can encode almost all sound +formats. Albert Faber did the work for this, including +getting libsndfile running under win32.</li> + + <li> CRC checksum now working! (Thanks to +Johannes Overmann )</li> + + <li> frame analyzer will now work with mono .mp3 files</li> + + <li> <font color="#3366ff">more code tweeks from +Jan Peman.</font></li> + + <li> <font color="#3366ff">Compaq-Alpha(Linux) +fixes and speedups from Nils Faerber.</font></li> + + <li> <font color="#3366ff">Faster +bin_search_StepSize from Juha Laukala.</font></li> + + <li> <font color="#3366ff">Faster quantize() from +Mike Cheng</font></li> + + <li> <font color="#3366ff">Faster +quantize_xrpow() from Chris Matrakidis. xrpow_flag removed +since this option is now on by default.</font></li> + + <li> Fixed .wav header parsing from Nils Faerber.</li> + + <li> Xing VBR frame info header code from Albert +Faber. "Xing" and "LAME 3.12" embedded in first +frame.</li> + + <li> <font color="#ff0000">Bug in VBR bit +allocation based on "over" value fixed.</font></li> + +</ul> + +<h3> LAME 3.11 June 3 1999</h3> + +<ul> + + <li> Almost all warnings (-Wall) now fixed! (Thanks +to Jan Peman)</li> + + <li> More coding improvements from Gabriel Bouvigne and Warren +Toomey.</li> + + <li> <font color="#ff0000">VBR +(variable bit rate). Increases bit rate for short +blocks and for frames where the number of bands containing audible +distortion is greater than a given value. Much tuning needs +to be done.</font></li> + + <li> Patch to remove all atan() calls from James Droppo.</li> + +</ul> + +<h3> LAME 3.10 May 30 1999</h3> + +<ul> + + <li> <font color="#3366ff">Fast mode +(-f) disables psycho-acoustic model for real time encoding on +older machines. Thanks to Lauri Ahonen who first sent a patch +for this.</font></li> + + <li> <font color="#ff0000">New bit reservoir +usage scheme to accommodate the new pre-echo detection formulas.</font></li> + + <li> <font color="#ff0000">Tuning of AWS and +ENER_AWS pre-echo formulas by Gabriel Bouvigne and myself. +They work great! now on by default.</font></li> + + <li> In jstereo, force blocktypes for left & right +channels to be identical. FhG seems to do this. It +can be disabled with "-d".</li> + + <li> Patches to compile MP3x under win32 (Thanks to Albert +Faber).</li> + + <li> <font color="#3366ff">bin_serach_stepsize +limited to a quantizationStepSize of -210 through 45.</font></li> + + <li> <font color="#ff0000">outer_loop() +will now vary Mid & Side scalefactors independently. +Can lead to better quantizations, but it is slower (twice as many +quantizations to look at). Running with "-m f" does not need +this and will run at the old speed</font></li> + + <li> <font color="#ff0000">Bug in inner_loop +would allow quantizations larger than allowed. (introduced in +lame3.04, now fixed.)</font></li> + + <li> Updated HTML documentation from Gabriel Bouvigne.</li> + + <li> Unix man page from William Schelter.</li> + + <li> <font color="#ff0000">numlines[] bug +fixed. (Thanks to Rafael Luebbert, MPecker author).</font></li> + + <li> <font color="#3366ff">Quantization speed +improvements from Chirs Matrakidis.</font></li> + + <li> <font color="#ff0000">When comparing +quantizations with the same number of bands with audible distortion, +use the one with the largest scalefactors, not the first one outer_loop +happened to find.</font></li> + + <li> Improved defination of best quantization when using -f +(fast mode).</li> + + <li> subblock code now working. But no algorithm to +choose subblock gains yet.</li> + + <li> Linux now segfaults on floating point +exceptions. Should prevent me from releasing binaries that +crash on other operating systems.</li> + +</ul> + +<h3> LAME 3.04 May 22 1999</h3> + +<ul> + + <li>Preliminary documentation from Gabriel Bouvigne.</li> + + <li> <font color="#3366ff">I wouldn't have +thought it was possible, but now there are even more speed improvements +from Chris Matrakidis! Removed one FFT when using joint +stereo, and many improvements in loop.c.</font></li> + + <li> "Fake" ms_stereo mode renamed "Force" ms_stereo since it +forces mid/side stereo on all frames. For some music this is +said to be a problem, but for most music mode is probably better than +the default jstereo because it uses specialized mid/side channel +masking thresholds.</li> + + <li> Small bugs in Force ms_stereo mode fixed.</li> + + <li> Compaq Alpha fixes from Nathan Slingerland.</li> + + <li> <font color="#ff0000">Some new experimental +pre-echo detection formulas in l3psy.c (#ifdef AWS and #ifdef ENER_AWS, +both off by default. Thanks to Gabriel Bouvigne and Andre +Osterhues)</font></li> + + <li> Several bugs in the syncing of data displayed by mp3x (the +frame analyzer) were fixed.</li> + + <li> highq (-h) option added. This turns on things +(just one so far) that should sound better but slow down LAME.</li> + +</ul> + +<h3>LAME 3.03 May 18 1999 </h3> + +<ul> + + <li> <font color="#3366ff">Faster (20%) & +cleaner FFT (Thanks to Chris Matrakidis +http://www.geocities.com/ResearchTriangle/8869/fft_summary.html)</font></li> + + <li> mods so it works with VC++ (Thanks to Gabriel Bouvigne, +www.mp3tech.org)</li> + + <li> MP3s marked "original" by default (Thanks to +Gabriel Bouvigne, www.mp3tech.org)</li> + + <li> Can now be compiled into a BladeEnc compatible +.DLL (Thanks to Albert Faber, CDex author)</li> + + <li> Patches for "silent mode" and stdin/stdout +(Thanks to Lars Magne Ingebrigtsen)</li> + + <li> <font color="#ff0000">Fixed rare bug: if a +long_block is sandwiched between two short_blocks, it must be changed +to a short_block, but the short_block ratios have not been computed in +l3psy.c. Now always compute short_block ratios just in case.</font></li> + + <li> <font color="#ff0000">Fixed bug with initial +quantize step size when many coefficients are zero. (Thanks +to Martin Weghofer).</font></li> + + <li> Bug fixed in MP3x display of audible distortion.</li> + + <li> improved status display (Thanks to Lauri Ahonen).</li> + +</ul> + +<h3> LAME 3.02 May 12 1999</h3> + +<ul> + + <li> <font color="#ff0000">encoder could use +ms_stereo even if channel 0 and 1 block types were different. +(Thanks to Jan Rafaj)</font></li> + + <li> <font color="#ff0000">added -k option to +disable the 16 kHz cutoff at 128kbs. This cutoff is never +used at higher bitrates. (Thanks to Jan Rafaj)</font></li> + + <li> <font color="#ff0000">modified pe bit +allocation formula to make sense at bit rates other than 128kbs.</font></li> + + <li> fixed l3_xmin initialization problem which showed up under +FreeBSD. (Thanks to Warren Toomey)</li> + +</ul> + +<h3><b>LAME 3.01 May 11 1999</b> </h3> + +<ul> + + <li> max_name_size increased to 300 (Thanks to Mike +Oliphant)</li> + + <li> patch to allow seeks on input file (Thanks to Scott Manley)</li> + + <li> fixes for mono modes (Thanks to everyone who pointed this +out)</li> + + <li> overflow in calc_noise2 fixed</li> + + <li> bit reservoir overflow when encoding lots of frames with +all zeros (Thanks to Jani Frilander)</li> + +</ul> + +<hr> + +<h3>LAME 3.0 May 10 1999</h3> + +<ul> + + <li><font color="#ff0000">added GPSYCHO (developed +by Mark Taylor)</font></li> + + <li> <font color="#000000">added MP3x (developed +by Mark Taylor)</font></li> + + <li> LAME now maintained by Mark Taylor</li> + +</ul> + +<h3>November 8 1998</h3> +<ul> + + <li> Version 2.1f released</li> + + <li> 50% faster filter_subband() routine in encode.c +contributed by James Droppo</li> + +</ul> + +<h3>November 2 1998</h3> +<ul> + + <li> Version 2.1e released.</li> + + <li> New command line switch <b>-a</b> +auto-resamples a stereo input file to mono.</li> + + <li> New command line switch <b>-r</b> resamples +from 44.1 kHz to 32 kHz [this switch doesn't work really well. Very +tinny sounding output files. Has to do with the way I do the resampling +probably]</li> + + <li> Both of these were put into the ISO code in the encode.c +file, and are simply different ways of filling the input buffers from a +file.</li> + +</ul> + +<h3>October 31 1998</h3> +<ul> + + <li> Version 2.1d released</li> + + <li> Fixed memory alloc in musicin.c (for l3_sb_sample)</li> + + <li> Added new command line switch (-x) to force swapping of +byte order</li> + + <li> Cleaned up memory routines in l3psy.c. All the mem_alloc() +and free() routines where changed so that it was only done <i>once</i> +and not every single time the routine was called.</li> + + <li> Added a compile time switch -DTIMER that includes all +timing info. It's a switch for the time being until some other people +have tested on their system. Timing code has a tendency to do different +things on different platforms.</li> + +</ul> + +<h3>October 18 1998</h3> +<ul> + + <li> Version 2.1b released.</li> + + <li> Fixed up bug: all PCM files were being read as WAV.</li> + + <li> Played with the mem_alloc routine to fix crash under +amigaos (just allocating twice as much memory as needed). Might see if +we can totally do without this routine. Individual malloc()s where they +are needed instead</li> + + <li> Put Jan Peman's quality switch back in. This reduces +quality via the '-q <int>' switch. Fun speedup which is +mostly harmless if you're not concerned with quality.</li> + + <li> Compiling with amiga-gcc works fine</li> + +</ul> + +<h3>October 16 1998</h3> +<ul> + + <li> Version 2.1a released. User input/output has been cleaned +up a bit. WAV file reading is there in a very rudimentary sense ie the +program will recognize the header and skip it, but not read it. The WAV +file is assumed to be 16bit stereo 44.1 kHz.</li> + +</ul> + +<h3>October 6 1998</h3> +<ul> + + <li> Version 2.1 released with all tables now incorporated into +the exe. Thanks to <b>Lars Magne Ingebrigtseni</b></li> + +</ul> + +<h3>October 4 1998</h3> + +<ul> + <li> + In response to some concerns about the quality of the encoder, I + have rebuilt the encoder from scratch and carefully compared output + at all stages with the output of the unmodified ISO encoder. + </li> + <li> + <a href="http://www.uq.net.au/%7Ezzmcheng/lame/download.html"> + Version 2.0</a> of LAME is built from the ISO source code (dist10), + and incorporates modifications from myself and the 8hz effort. The + output file from LAME v2.0 is <em>identical</em> to the output of + the ISO encoder for my test file. Since I do not have heaps of time, + I left the ISO AIFF file reader in the code, and did not incorporate + a WAV file reader. + </li> + <li> + Added section + on <a href="http://www.uq.net.au/%7Ezzmcheng/lame/quality.html"> + quality</a>. + </li> +</ul> + +<h3> October 1 1998</h3> +<ul> + <li>Updated web page and released LAME v1.0</li> +</ul> + +<hr> + +<h3>Up to September 1998</h3> +<p>Working on the 8hz source code...</p> +<ul> + <li> + Patched the <a href="http://www.8hz.com/">8hz</a> source + code + </li> + <li> + 45% faster than original source (on my freebsd p166). + <ul> + <li> + m1 - sped up the mdct.c and quantize() functions [MDCTD, + MDCTD2, LOOPD] + </li> + <li>m2 - sped up the filter_subband routine using <b>Stephane + Tavenard</b>'s work from musicin [FILTST] + </li> + <li>m2 - minor cleanup of window_subband [WINDST2]</li> + <li>m2 - Cleaned up a few bits in l3psy.c. Replaced a sparse + matrix multiply with a hand configured unrolling [PSYD]</li> + <li>m3 - (amiga only) Added in the asm FFT for m68k (based on + sources from <b>Henryk Richter</b> and <b>Stephane Tavenard</b>)</li> + <li>m4 - raw pcm support back in</li> + <li>m5 - put in a byte-ordering switch for raw PCM reading (just + in case)</li> + <li>m6 - reworked the whole fft.c file. fft now 10-15% + faster.</li> + <li>m7 - totally new fft routine. exploits fact that this is a + real->complex fft. About twice as fast as previous fastest fft (in + m6). (C fft routine is faster than the asm one on an m68k!)</li> + <li>m8 + <ul> + <li> + Now encodes from stdin. Use '-' as the input filename. Thanks + to <b>Brad Threatt</b> + </li> + <li> + Worked out that the 1024point FFT only ever uses the first 6 + phi values, and the first 465 energy values. Saves a bunch of + calculations. + </li> + <li> + Added a speed-up/quality switch. Speed is increased but + quality is decreased <i>slightly</i>. My ears are bad enough + not to be able to notice the difference in quality at low + settings :). Setting '-q 1' improves speed by about 10%. '-q + 100' improves speed by about 26%. Enoding of my test track + goes from 111s (at default '-q 0') to 82s (at -q 100). Thanks + to <b>Jan Peman</b> for this tip. + </li> + </ul> + </li> + <li> + m9 - fixed an error in l3psy.c. numlines[] is overwritten with + incorrect data. Added a new variable numlines_s[] to fix + this. Thanks again to <b>Jan Peman</b>. + </li> + <li> + m10 - Down to 106 seconds by selecting a few more compiler + options. Also added a pow20() function in l3loop.c to speed up + (ever so slightly) calls to pow(2.0, x) + </li> + + <li>m11 + <ul> + <li> + No speedups. Just cleaned up some bits of the code. + </li> + <li> + Changed K&R prototyping to 'normal' format. Thanks + to <b>Steffan Haeuser</b> for his help here. + </li> + <li> + Changed some C++ style comments to normal C comments in + huffman.c + </li> + <li> + Removed the #warning from psy_data.h (it was getting + annoying!) + </li> + <li> + Removed reference in bitstream.c to malloc.h. Is there a + system left where malloc.h hasn't been superceded by + stdlib.h? + </li> + </ul> + </li> + </ul> + + <li>In Progess: + <ul> + <li> + my PSYD hack for the spreading functions is only valid for + 44.1 kHz - Should really put in a "if freq = 44.1 kHz" + switch for it. Someone might want to extend the speedup for + 48 and 32 kHz. + </li> + <li> + Putting in Jan Peman's quantanf_init speedup. + </li> + </ul> + </li> +</ul> + +<hr> +<center> +<p> + <a href="http://validator.w3.org/check?uri=referer"> + <img src="http://www.w3.org/Icons/valid-html401" + alt="Valid HTML 4.01 Transitional" height="31" width="88"> + </a> +</p> +</center> + +</body> +</html> |