libopenmpt 0.5.4 (2020-11-29)

AMS: An upper bound for uncompressed sample size is now established to avoid memory exhaustion from malformed files.
DMF: Support early format beta versions (in particular versions 1-4).
MED: Also use octave wrapping in 8-channel mode for MMD0/MMD1 modules.
MED: If 8-channel mode is activated, ignore BPM mode.
MED: Emulate tempo commands F01 and F02 quirk.
MED: Tempo commands below 32 BPM were interpreted as tempo slides.
IMF: Instrument sample mapping was off by one octave, notable in the guitar part of Astaris by Karsten Koch.

libopenmpt 0.5.3 (2020-10-25)

[Sec] Possible hang if a MED file claimed to contain 256 songs. (r13704)
[Bug] libopenmpt: openmpt::is_extension_supported2() exported symbol was missing (C++).
[Bug] openmpt::module::set_position_seconds sometimes behaved as if the song end was reached when seeking into a pattern loop and in some other corner cases.
Increase threshold for ignoring panning commands from 820 to 830.
Subsong names now fall back to the first pattern’s name if empty.
MO3: Avoid certain ModPlug hacks from being fixed up twice, which could lead to e.g. very narrow pan swing range for old OpenMPT IT files saved with a recent MO3 encoder version.
MO3: Some files with corrupted envelope data could be rejected completely (normally libopenmpt should fix up the envelope data).
MO3: Song metadata didn’t correctly identify MPTM as source format (it appeared as IT instead).
STM: Change tempo computation to behave like Scream Tracker 2.3 instead of Scream Tracker 2.2, as the playback frequencies we use for sample playback are closer to those of Scream Tracker 2.3.
PLM: Percentage offset (Mxx) was slightly off.
WOW: Fix loading of several files and harden WOW detection.

libopenmpt 0.5.2 (2020-08-30)

[Change] Makefile CONFIG=emscripten now supports EMSCRIPTEN_TARGET=all which provides WebAssembly as well as fallback to JavaScript in a single build.
[Regression] Makefile CONFIG=emscripten does not support EMSCRIPTEN_TARGET=asmjs or EMSCRIPTEN_TARGET=asmjs128m any more because support has been removed from current Emscripten versions.
[Regression] Support for Emscripten versions older than 1.39.7 has been removed.
PP20: The first few bytes of some files were not decompressed properly, making some files unplayable (depending on the original format).

libopenmpt 0.5.1 (2020-07-26)

[Bug] libopenmpt/libopenmpt.h failed to compile with LIBOPENMPT_NO_DEPRECATE defined.
MPTM: Qxy now retriggers OPL notes if new compatibility flag is set in file.
MPTM: Bring back old OPL note end-of-envelope behaviour for files made with OpenMPT 1.28.
IT: Global volume slides with both nibbles set preferred the “slide up” nibble over the “slide down” nibble in old OpenMPT versions, unlike other slides. Such old files are now imported correctly again.
IT: Fixed an edge case where, if the filter hit full cutoff / no resonance on the first tick of a row where a new delayed note would be triggered, the filter would be disabled even though it should stay active. Fixes trace.it by maddie.
OXM: Some sample loops were not imported correctly.
XM: Out-of-range arpeggio clamping behaviour broke in OpenMPT 1.23.05.00. The arpeggios in Binary World by Dakota now play correctly again.
S3M: Support old-style sample pre-amp value in very early S3M files.
S3M: Only force-enable fast slides for files ST 3.00. Previously, any S3M file made with an ST3 version older than 3.20 enabled them.
S3M: Only apply volume and middle-C speed on instrument change if the new sample slot has sample data.
MOD: Fix an infinite loop in GamerMan by MrGamer by playing non-ProTracker MODs more like FT2 would.
M15: Improve tracker detection heuristics to never assume SoundTracker 2.0 if there is a huge number of Dxx commands, as that is a definite hint that they should be treated as volume slides. Fixes Monty On The Run by Master Blaster.
MO3: Support OPL patches in MO3 files created from MPTM and S3M.
DBM: If a global pattern command would be lost because both effect commands in a cell would have to go into the regular effect column (e.g. a speed and a tempo command), the lost command is now attempted to be written into a different cell on the same row. Fixes “Party-Question V” by grogon.

libopenmpt 0.5.0 (2020-05-24)

[New] OggMod compressed FastTracker 2 XM (OXM) modules are now supported.
[New] The emulated Amiga type when Amiga resampler emulation is enabled can now be selected via ctl render.resampler.emulate_amiga_type. Possible values are: "auto", "a500", "a1200", and an experimental option "unfiltered".
[New] libopenmpt: New API openmpt::module::get_current_estimated_bpm() (C++), and openmpt_module_get_current_estimated_bpm() (C) which provides accurate beats per minute information for module formats with time signature and an educated guess based on speed and tempo for others.
[New] libopenmpt: New type-aware ctl APIs that do not require memory allocations and are thus realtime-safe: openmpt::module::ctl_get_boolean(), openmpt::module::ctl_get_integer(), openmpt::module::ctl_get_floatingpoint(), openmpt::module::ctl_get_text(), openmpt::module::ctl_set_boolean(), openmpt::module::ctl_set_integer(), openmpt::module::ctl_set_floatingpoint() (C++), and openmpt_module_ctl_get_boolean(), openmpt_module_ctl_get_integer(), openmpt_module_ctl_get_floatingpoint(), openmpt_module_ctl_get_text(), openmpt_module_ctl_set_boolean(), openmpt_module_ctl_set_integer(), openmpt_module_ctl_set_floatingpoint() (C).
[New] libopenmpt C++ New API openmpt::is_extension_supported2() which takes a std::string_view parameter instead of std::string.
[New] libopenmpt C++: New API openmpt::module::module(std::vector<std::byte> data), openmpt::module::module(const std::byte * data, std::size_t size), openmpt::module::module(const std::byte * beg, const std::byte * end).
[New] libopenmpt C++: New API openmpt::probe_file_header(flags, const std::byte * data, std::size_t size, filesize), openmpt::probe_file_header(flags, const std::byte * data, std::size_t size).
[New] libopenmpt_ext C++: New API openmpt::module_ext::module_ext(std::vector<std::byte> data), openmpt::module_ext::module_ext(const std::byte * data, std::size_t size), openmpt::module_ext::module_ext(std::vector<std::uint8_t> data), openmpt::module_ext::module_ext(const std::uint8_t * data, std::size_t size).
[Change] std::istream based file I/O has been speed up.
[Change] Dependency on iconv on Linux has been removed.
[Regression] libmodplug: The libmodplug emulation layer has been removed from the libopenmpt tree. Please use the separate libopenmpt-modplug package instead.
[Regression] foo_openmpt: foo_openmpt is discontinued. Please use Kode54’s fork foo_openmpt54: https://www.foobar2000.org/components/view/foo_openmpt54.
[Regression] Support for building with C++11 or C++14 has been removed. C++17 is now required to build libopenmpt.
[Regression] Support for client code using C++11 or C++ 14 has been removed. C++17 is now required to build libopenmpt client applications.
[Regression] Support for Visual Studio 2015 has been removed.
[Regression] Support for GCC 4.8, 4.9, 5, 6 has been removed.
[Regression] Support for Clang 3.6, 3.7, 3.8, 3.9, 4 has been removed.
[Regression] Support for Emscripten versions older than 1.39.1 has been removed.
[Regression] Building with Android NDK older than NDK r18b is not supported any more.
[Regression] openmpt123: Support for SDL1 (but not SDL2) output has been removed.
[Regression] openmpt123: Support for SDL2 older than 2.0.4 has been removed.
[Regression] Windows XP and Windows Vista are no longer supported.
[Regression] It is no longer possible to optionally use iconv for character set conversions.
[Bug] openmpt123: openmpt123 now honors the current locale and outputs text appropriately.
[Bug] openmpt123: Piping text output to other than console window targets on Windows has been fixed.
Greatly improved MED import. Synthesized instruments are still not supported but support was added for: Multisampled instruments, delta samples, more pattern commands, Hold and Decay, VSTi and MIDI output, multiple songs and many other small changes.
Improved OPL channel allocation when more than 18 notes are active, so that channels that have completely faded out are prioritized over channels that have already been released but have not faded out yet.
Interactively triggering an OPL instrument could cause the first pattern channel to no longer be played back correctly.
Fix some inaccuracies in OPL emulator.
Fix overflow of OPL amplification happening at a synth volume level of 510.
End-of-sample pop reduction of surround channels was applied to front channels instead, causing a pop on the front channels instead of removing it on the back channels.
IT: Disable retrigger with short notes quirk for modules saved with Chibi Tracker, as it does not implement that quirk.
IT: Instrument and sample panning should not override channel panning for following notes.
IT: SBx is now prioritized over Bxx commands that are to the left of it.
IT: Duplicate Check Type “Sample” should only be applied if the instruments match, too.
IT: Duplicate Check Type “Note” should compare pattern notes, but it was comparing the new pattern note against the old translated note.
IT: Various fixes for envelope resetting.
IT / S3M: When combining SBx and EEx effects, don’t skip the first row of the loop like in FastTracker 2.
S3M: Empty pattern commands now affect effect memory as well.
S3M: Offset beyond loop end wraps around to loop start like in Scream Tracker 3 + GUS (previously it just keep playing from the loop start, which is neither what GUS nor Sound Blaster drivers do).
S3M: Notes cannot be retriggered after they have been cut.
S3M: Fix portamento after note cut (fixes antediluvian_song.s3m).
S3M / MOD: Previous note offset is no longer used for retriggered notes if there was no instrument number next to the Qxy effect.
MOD: Sample swapping now also works if the sample that is being swapped from does not loop. Swapping to a non-looped sample now stops playback once the swapped-from sample reaches its (loop) end.
MOD: Fix early song ending due to ProTracker pattern jump quirk (EEx + Dxx on same row) if infinite looping is disabled. Fixes Haunted Tracks.mod by Triace.
MOD: Previous note offset is no longer used for retriggered notes if there was no instrument number next to the E9x effect.
MOD: Vibrato type “ramp down” was upside down.
XM: If a file contains patterns longer than 1024 rows, they are now clamped to 1024 rows instead of 64 rows.
XM: Do not reset note-off status on portamento if there is no instrument number.

libopenmpt 0.4.12 (2020-04-13)

IT: Vibrato was too fast in Old Effects mode since libopenmpt 0.3.
XM: Treat 8bitbubsy’s FT2 clone exactly like Fasttracker 2 with respect to compatibility and playback flags. For example, FT2 Pan Law was not applied.
DMF: Some files had a wrong tempo since libopenmpt 0.2.5705-beta15.