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Revision 1306 - (show annotations) (download)
Mon Aug 27 07:55:38 2007 UTC (16 years, 7 months ago) by iliev
File size: 15006 byte(s)
- updating changelog

1 Version CVS HEAD (?)
2
3 * packaging changes:
4 - config.h is not going to be installed along with liblinuxsampler's
5 API header files anymore
6 - only the API relevant header (and source) files will be exported to
7 the Doxygen API documentation (explicitly listed in Doxyfile.in)
8 - added completely new XCode project files for Mac OSX which is now
9 capable to execute our autoconf environment, thus no need anymore
10 to maintain the compile time configuration file (osx/version.h) for
11 OSX manually (patch by Toshi Nagata)
12
13 * general changes:
14 - replaced the old, confusing MIDI program change mechanism by a
15 flexible MIDI instrument mapper which allows to map arbitrary
16 (MIDI bank, MIDI program) pairs with arbitrary
17 (engine type, instrument file, file index) triplets which will be
18 loaded on the respective channel when such MIDI program change
19 messages arrive, beside that, each entry allows to define a life-time
20 strategy for the instrument, so the user can define whether the
21 instrument should i.e. be permanently loaded (to be able to switch
22 quickly among sounds) or i.e. loaded just on demand when the
23 respective program change arrives (to safe RAM space), as well as a
24 global volume factor for each entry, so the user can adjust the volume
25 dynamic of his mapped instrument collection without having to modify
26 the instrument files, also one can manage arbitrary amount of such
27 MIDI instrument maps and assign each sampler channel individually
28 a certain map, so that i.e. separation of normal instruments and
29 drumkits is possible
30 - new notification events for tracking changes to audio/MIDI devices,
31 MIDI instrument maps, MIDI instruments, FX sends, global volume.
32 - sampler was limited to load max. 200 instruments in the background
33 due to a constant size RingBuffer FIFO which is now replaced by a
34 dynamic (unlimited) size std::list FIFO
35 - added FX sends, these allow to route audio signals to arbitrary audio
36 output channels for being processed by external effect processors
37 (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
38 controllers
39 - global (sampler wide) volume can now be controlled at runtime
40 - Implemented new, improved notification system
41 - fixed compilation errors regarding OSX
42 (patch by Toshi Nagata)
43 - implemented instruments database
44 - added highly experimental support for on-the-fly instrument editing
45 within the sampler's process (by using instrument editor plugins),
46 you'll notice the new "Registered instrument editors:" message on
47 startup, added a new LSCP command "EDIT INSTRUMENT <sampler-channel>"
48 to spawn a matching instrument editor for the instrument on the
49 given sampler channel, the plugin path can be overridden at compile
50 time with ./configure --enable-plugin-dir=/some/dir
51 - fixed several issues in fundamental "Thread" class: set scheduling
52 policy and priority on thread level, set a minimum stack size for
53 thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
54 threads simply inherited properties of starting thread instead of
55 setting their own policy and priority
56 - minor fix in our automatic stack trace mechanism on crashes, the
57 main process did not wait for the stack trace process to finish
58 its output
59 - fixed some minor memory leaks
60 - reenabled assembly features support, at the moment only for
61 enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
62
63 * MIDI driver:
64 - dispatch bank select (MSB and LSB) messages
65
66 * audio driver:
67 - the ALSA audio output driver parameters now reflect the correct
68 parameter value ranges for the respective selected sound card
69 (patch by Till Wimmer, a bit fixed and extended)
70
71 * Gigasampler format engine:
72 - if a filter is used and EG2 finishes before EG1, let the voice
73 die when EG2 has finished (this fixes a problem with clicks and
74 voice starvation for some gigs)
75 - playback is no longer disabled during instrument loading
76 - all notes playing on a channel that changes its instrument keep
77 playing with the old instrument until they get a note off
78 command
79 - EG fix: a release value of zero could cause noises or crash
80 - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
81 - EG fine tuning: when attack is zero the EG starts at a level
82 above max sustain level, which means that there is a decay phase
83 even if sustain is 100%
84 - more EG fixes: the level could sometimes go below zero and cause
85 noises or crashes
86 - minor fix of EGDecay (patch by Toshi Nagata)
87 - fixed compiler error when --enable-override-filter-type was
88 supplied to the configure script (fixes #46)
89
90 * LSCP server:
91 - fixed compile time error for old Bison versions
92 (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
93 - parser now supports extended ASCII character set
94 (up to ASCII code 255, i.e. includes now umlauts and accents)
95 - filename arguments in LSCP commands now allow to use escape
96 sequences, that is directly literal as one of: \', \", \\, \n, \r,
97 \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
98 code value like \xf2) (fixes bug #24)
99 - returns verbose syntax errors (line and column where syntax error
100 occured, the unexpected character and the actually expected, possible
101 character(s), the latter only if less than 5 possibilities)
102
103 * Bug fixes:
104 - fixed crash occurring on certain LSCP scripts (Bug 39)
105 - another thread safety fix for lscp "load engine" and "set
106 channel audio output device"
107 - fixed a crash which occurs when reassigning the same engine
108 on a sampler channel with connected MIDI device
109 - fixed a crash which occurs when changing the number of ports of a MIDI
110 device connected to a sampler channel to number less then or equal
111 to the index of the port to which the sampler channel is connected.
112 - The previous bindings were not been disconnected when altering
113 the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
114 unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
115 - The active stream/voice count statistic was incorrect.
116 - notification events were not been sent for some sampler
117 channel changes
118 - added default min and max values to restrict the number of allowed
119 audio output channels and MIDI input ports
120 - the connection to the PCM interface is now closed when destroying
121 an audio output device
122
123 * test cases:
124 - updated and fixed (haven't been touched in a while)
125
126 Version 0.4.0 (24 November 2006)
127
128 * packaging changes:
129 - changed deprecated copyright attribute to license; added ldconfig
130 to post-(un)install steps; added devel package for liblinuxsampler;
131 to linuxsampler.spec (RPM)
132 - install necessary development header files for allowing 3rd party
133 applications to link against liblinuxsampler
134 - liblinuxsampler's API documentation can be generated with 'make docs'
135 (Doxygen required)
136 - added benchmark to automatically detect the best triangle LFO
137 implementation (currently either an integer math solution or a
138 di-harmonic approximation), automatic detection can be overriden
139 with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
140 configure script argument though (mandatory for cross-compilation)
141 - do not automatically pick optimized gcc flags if the user already
142 provided some on his own (as CXXFLAGS)
143 - added compile time option to disable processing of All-Notes-Off MIDI
144 messages
145 - added compile time options to allow disabling the various audio and
146 MIDI drivers
147 - fixed automatic GCC CPU switch detection on PPC
148 (patch by Ebrahim Mayat)
149
150 * Gigasampler format engine:
151 - extensive synthesis optimization
152 (reimplementation of EGs and LFO(s), removed synthesis parameter
153 prerendering and the synthesis parameter matrix in general, splitting
154 each audio fragment into subfragments now where each subfragment uses
155 constant pitch and filter coefficients. The volume coefficient is
156 linearly interpolated inside a subfragment, unless
157 --disable-interpolate-volume is set.)
158 - fine tuning of the EG modulation parameters
159 - improved filter cutoff calculation by adding support for the
160 following gig parameters: Cutoff freq (used when no cutoff
161 controller is defined), Control invert, Minimum cutoff, Velocity
162 curve and Velocity range. The keyboard tracking now scales
163 cutoff frequency instead of resonance.
164 - added support for gig parameter Resonance.
165 - fixed bug in sysex handling (patch by Juan Linietsky)
166 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
167 which can be overridden with --enable-global-attenuation
168 - EG fixes: made the length of "attack hold" stage more
169 accurate. Release stage can now start before attack stage
170 ends. Cancel release didn't work when sustain was zero. Attack
171 time now has a minimal value to prevent clicks.
172 - fixed pitch changes larger than one octave
173 - fixed EG3 (pitch envelope) synthesis which was neutral all the time
174 - implemented portamento mode and solo mode (a.k.a 'mono mode'):
175 all modes can be altered via standard GM messages, that is CC5 for
176 altering portamento time, CC65 for enabling / disabling portamento
177 mode, CC126 for enabling solo mode and CC127 for disabling solo mode
178 - fine tuning of the curves for volume (CC7), pan (CC10 and gig
179 parameter) and crossfade
180 - added support for the "attenuation controller threshold" gig
181 parameter
182 - added smoothing of volume changes caused by control change
183 messages
184 - sample loop parameters are now taken from the DimensionRegion
185 instead of the wave chunk
186 - fixed keyswitching for v3 gigs with a number of keyswitch splits
187 not equal to a power of two
188 - reimplementation of the filter algorithm. The new filter is more
189 accurate and supports all gig filter types, including bandreject
190 and lowpass turbo.
191 - real support for 24 bit samples - samples are not truncated to
192 16 bits anymore
193 - support for aftertouch (channel pressure, not polyphonic
194 aftertouch)
195 - LFO1 behaviour fixed (dampening from max volume instead of
196 amplifying from 0)
197
198 * LSCP server:
199 - fixed application exit on broken pipe error (fixes bug #20)
200 - fixed the notification messages delay due to lack of
201 network activity (fixes bug #26)
202 - fixed parser bug which occured on space(s) within device parameters
203 (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
204
205 * audio driver:
206 - added aRts audio output driver (by no means RT safe)
207
208 * MIDI driver:
209 - fixed legacy sysex code which caused dispatching of MIDI SysEx
210 messages several times instead of once
211 - API extension for MIDI drivers which already supply exact time stamps
212 for events (i.e. for offline rendering based MIDI drivers)
213 - added checks for bad MIDI data
214
215 * linuxsampler application:
216 - show available sampler engine types on startup
217
218 * general changes:
219 - support for muting sampler channels and solo mode of the same, two new
220 LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
221 fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
222 introduced for this, the behavior is the same like on a mixer console
223 (patch by Grigor Iliev, a bit adjusted). Also added configure option
224 --enable-process-muted-channels which can be used to enable the
225 processing of muted channels.
226 - support for sostenuto pedal
227 - support for monitoring the total number of active voices
228 (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
229 SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
230 - fixed some memory management errors
231 - fixed some concurrency problems that could lead to crashes when
232 LSCP commands were executed
233 - fixed crash when instrument loading failed previously on the same
234 sampler channel (fixes bug #36)
235
236 Version 0.3.3 (15 July 2005)
237
238 * packaging changes:
239 - fixed compilation with gcc 4.0
240
241 * Gigasampler format engine:
242 - LFO preprocessing was performed even though the respective LFO was
243 disabled by the instrument patch (minor efficiency fix)
244 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
245 for volume ramp downs in the same fragment (needed for current voice
246 stealing implementation) then simply inform the user with a warning
247 about possible click sounds and reduce the volume ramp down
248 appropriately instead of cancelling the audio device connection
249
250 Version 0.3.2 (24 June 2005)
251
252 * packaging changes:
253 - updated autotools build files to compile on OS X
254 (conditional compilation of CoreMIDI and MidiShare drivers)
255 - hand-crafted assembly optimization code can be disabled with
256 './configure --disable-asm' (definitely not recommended)
257 - fixed 'make dist' rule to include all necessary files
258 - require automake (>= 1.5) for 'make -f Makefile.cvs'
259 (due to 'dist-bzip2' automake option)
260
261 * Gigasampler format engine:
262 - support for the gig parameters for "release velocity response" curves
263 - fine tuning of the EGADSR envelope
264 - volume of release triggered samples now depends on note-on velocity,
265 note length and gig parameter "release trigger decay" instead of
266 note-off velocity.
267 - revised voice stealing
268 (fixes crash and endless loop caused by voice stealing)
269 - don't reset scale tuning on instrument or audio output device change
270 - handle key group conflicts right at the beginning of each fragment
271 instead of when the respective voice is actually launched
272 (fixes undefined behavior if stolen voices belonged to a key group -
273 this case was followed by a "killed voice survived" error message)
274 - fixed minor issue with null/silence samples
275 (those stole voices even though they don't need a voice at all which
276 resulted in "voice stealing didn't work out" messages)
277 - don't reset volume, pan, pitch and MIDI controller values on
278 instrument or audio output device change
279
280 * LSCP server:
281 - fixed some crashes (patch by Grigor Iliev, fixes #19)
282 - fixed LSCP event "CHANNEL_INFO" notification
283 (e.g. did not notify on volume changes or MIDI program change events)
284
285 * linuxsampler application:
286 - added command line parameters --lscp-addr and --lscp-port to override
287 default IP address and port of LSCP server
288
289 Version 0.3.1 (24 May 2005)
290
291 * initial release

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