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Revision 1407 - (hide annotations) (download)
Fri Oct 12 12:35:58 2007 UTC (12 years, 3 months ago) by schoenebeck
File size: 16662 byte(s)
* slightly renamed recently added "EDIT INSTRUMENT <sampler-chan>" LSCP
  command to "EDIT CHANNEL INSTRUMENT <sampler-chan>"

1 schoenebeck 947 Version CVS HEAD (?)
2    
3 schoenebeck 1065 * packaging changes:
4 schoenebeck 1212 - config.h is not going to be installed along with liblinuxsampler's
5     API header files anymore
6 schoenebeck 1065 - only the API relevant header (and source) files will be exported to
7     the Doxygen API documentation (explicitly listed in Doxyfile.in)
8 schoenebeck 1175 - 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 schoenebeck 1360 - fixed buggy boolean --enable-foo / --disable-foo configure script
13     parameters
14 schoenebeck 1065
15 schoenebeck 947 * general changes:
16     - replaced the old, confusing MIDI program change mechanism by a
17     flexible MIDI instrument mapper which allows to map arbitrary
18 schoenebeck 973 (MIDI bank, MIDI program) pairs with arbitrary
19 schoenebeck 947 (engine type, instrument file, file index) triplets which will be
20     loaded on the respective channel when such MIDI program change
21     messages arrive, beside that, each entry allows to define a life-time
22     strategy for the instrument, so the user can define whether the
23     instrument should i.e. be permanently loaded (to be able to switch
24     quickly among sounds) or i.e. loaded just on demand when the
25     respective program change arrives (to safe RAM space), as well as a
26     global volume factor for each entry, so the user can adjust the volume
27     dynamic of his mapped instrument collection without having to modify
28 schoenebeck 973 the instrument files, also one can manage arbitrary amount of such
29     MIDI instrument maps and assign each sampler channel individually
30     a certain map, so that i.e. separation of normal instruments and
31     drumkits is possible
32 iliev 1108 - new notification events for tracking changes to audio/MIDI devices,
33     MIDI instrument maps, MIDI instruments, FX sends, global volume.
34 schoenebeck 990 - sampler was limited to load max. 200 instruments in the background
35     due to a constant size RingBuffer FIFO which is now replaced by a
36     dynamic (unlimited) size std::list FIFO
37 schoenebeck 1001 - added FX sends, these allow to route audio signals to arbitrary audio
38     output channels for being processed by external effect processors
39     (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
40     controllers
41 schoenebeck 1005 - global (sampler wide) volume can now be controlled at runtime
42 iliev 1130 - Implemented new, improved notification system
43 schoenebeck 1149 - fixed compilation errors regarding OSX
44     (patch by Toshi Nagata)
45 iliev 1161 - implemented instruments database
46 iliev 1345 - added support for escape sequences to the instruments database
47 schoenebeck 1212 - added highly experimental support for on-the-fly instrument editing
48     within the sampler's process (by using instrument editor plugins),
49     you'll notice the new "Registered instrument editors:" message on
50 schoenebeck 1407 startup, added a new LSCP command:
51     "EDIT CHANNEL INSTRUMENT <sampler-channel>"
52 schoenebeck 1212 to spawn a matching instrument editor for the instrument on the
53     given sampler channel, the plugin path can be overridden at compile
54     time with ./configure --enable-plugin-dir=/some/dir
55 schoenebeck 1321 - added experimental code for synchronizing instrument editors hosted
56     in the sampler's process to safely edit instruments while playing
57     without a crash (hopefully) by either suspending single regions
58     wherever possible or if unavoidable whole engine(s)
59 schoenebeck 1221 - fixed several issues in fundamental "Thread" class: set scheduling
60     policy and priority on thread level, set a minimum stack size for
61     thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
62     threads simply inherited properties of starting thread instead of
63     setting their own policy and priority
64 schoenebeck 1233 - minor fix in our automatic stack trace mechanism on crashes, the
65     main process did not wait for the stack trace process to finish
66     its output
67 persson 1248 - fixed some minor memory leaks
68 schoenebeck 1259 - reenabled assembly features support, at the moment only for
69     enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
70 schoenebeck 1314 - minor assembly fix in x86 features detection (don't use the PIC
71     register, to avoid relocations in the text segment at runtime)
72 schoenebeck 947
73     * MIDI driver:
74     - dispatch bank select (MSB and LSB) messages
75    
76 schoenebeck 1049 * audio driver:
77     - the ALSA audio output driver parameters now reflect the correct
78     parameter value ranges for the respective selected sound card
79     (patch by Till Wimmer, a bit fixed and extended)
80    
81 persson 951 * Gigasampler format engine:
82     - if a filter is used and EG2 finishes before EG1, let the voice
83     die when EG2 has finished (this fixes a problem with clicks and
84     voice starvation for some gigs)
85 persson 1038 - playback is no longer disabled during instrument loading
86     - all notes playing on a channel that changes its instrument keep
87     playing with the old instrument until they get a note off
88     command
89 persson 1039 - EG fix: a release value of zero could cause noises or crash
90 schoenebeck 1041 - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
91 persson 1046 - EG fine tuning: when attack is zero the EG starts at a level
92     above max sustain level, which means that there is a decay phase
93     even if sustain is 100%
94 persson 1147 - more EG fixes: the level could sometimes go below zero and cause
95     noises or crashes
96 schoenebeck 1149 - minor fix of EGDecay (patch by Toshi Nagata)
97 schoenebeck 1181 - fixed compiler error when --enable-override-filter-type was
98     supplied to the configure script (fixes #46)
99 schoenebeck 1321 - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
100     instead of a fix value
101 schoenebeck 1348 - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
102     127 (solo mode) only kill voices if the respective mode really
103     changed
104 persson 951
105 schoenebeck 1244 * LSCP server:
106     - fixed compile time error for old Bison versions
107     (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
108 schoenebeck 1245 - parser now supports extended ASCII character set
109     (up to ASCII code 255, i.e. includes now umlauts and accents)
110     - filename arguments in LSCP commands now allow to use escape
111     sequences, that is directly literal as one of: \', \", \\, \n, \r,
112     \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
113     code value like \xf2) (fixes bug #24)
114 schoenebeck 1389 - the following LSCP commands now also support escape sequences for at
115     least one of their text-based parameters (i.e. name, description):
116     "ADD MIDI_INSTRUMENT_MAP", "MAP MIDI_INSTRUMENT",
117     "SET MIDI_INSTRUMENT_MAP NAME", "SET FX_SEND NAME", "CREATE FX_SEND",
118     "SET DB_INSTRUMENT_DIRECTORY NAME",
119     "SET DB_INSTRUMENT_DIRECTORY DESCRIPTION", "SET DB_INSTRUMENT NAME",
120     "SET DB_INSTRUMENT DESCRIPTION", "FIND DB_INSTRUMENTS",
121     "FIND DB_INSTRUMENT_DIRECTORIES"
122 schoenebeck 1252 - returns verbose syntax errors (line and column where syntax error
123     occured, the unexpected character and the actually expected, possible
124     character(s), the latter only if less than 5 possibilities)
125 persson 1349 - made sure that LSCP syntax is not affected by gigedit locale
126     settings
127 schoenebeck 1379 - bugfix regarding strings parameter lists: all comma separated lists
128     of strings were treated as being one string containing commas
129     (fixes #57)
130 schoenebeck 1244
131 iliev 959 * Bug fixes:
132     - fixed crash occurring on certain LSCP scripts (Bug 39)
133 persson 1038 - another thread safety fix for lscp "load engine" and "set
134     channel audio output device"
135 iliev 1283 - fixed a crash which occurs when reassigning the same engine
136     on a sampler channel with connected MIDI device
137 iliev 1295 - fixed a crash which occurs when changing the number of ports of a MIDI
138     device connected to a sampler channel to number less then or equal
139     to the index of the port to which the sampler channel is connected.
140 iliev 1296 - The previous bindings were not been disconnected when altering
141     the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
142     unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
143 iliev 1297 - The active stream/voice count statistic was incorrect.
144 iliev 1298 - notification events were not been sent for some sampler
145     channel changes
146 iliev 1305 - added default min and max values to restrict the number of allowed
147     audio output channels and MIDI input ports
148 iliev 1306 - the connection to the PCM interface is now closed when destroying
149     an audio output device
150 schoenebeck 1332 - files with slash in their path or filename could not be loaded
151 iliev 959
152 schoenebeck 1221 * test cases:
153     - updated and fixed (haven't been touched in a while)
154    
155 schoenebeck 937 Version 0.4.0 (24 November 2006)
156 persson 696
157 schoenebeck 697 * packaging changes:
158 capela 868 - changed deprecated copyright attribute to license; added ldconfig
159     to post-(un)install steps; added devel package for liblinuxsampler;
160     to linuxsampler.spec (RPM)
161 schoenebeck 697 - install necessary development header files for allowing 3rd party
162     applications to link against liblinuxsampler
163     - liblinuxsampler's API documentation can be generated with 'make docs'
164     (Doxygen required)
165 schoenebeck 715 - added benchmark to automatically detect the best triangle LFO
166     implementation (currently either an integer math solution or a
167     di-harmonic approximation), automatic detection can be overriden
168     with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
169     configure script argument though (mandatory for cross-compilation)
170 schoenebeck 829 - do not automatically pick optimized gcc flags if the user already
171     provided some on his own (as CXXFLAGS)
172 schoenebeck 849 - added compile time option to disable processing of All-Notes-Off MIDI
173     messages
174 schoenebeck 852 - added compile time options to allow disabling the various audio and
175     MIDI drivers
176 schoenebeck 909 - fixed automatic GCC CPU switch detection on PPC
177     (patch by Ebrahim Mayat)
178 schoenebeck 697
179 persson 696 * Gigasampler format engine:
180 schoenebeck 738 - extensive synthesis optimization
181     (reimplementation of EGs and LFO(s), removed synthesis parameter
182     prerendering and the synthesis parameter matrix in general, splitting
183     each audio fragment into subfragments now where each subfragment uses
184 persson 830 constant pitch and filter coefficients. The volume coefficient is
185     linearly interpolated inside a subfragment, unless
186     --disable-interpolate-volume is set.)
187 persson 696 - fine tuning of the EG modulation parameters
188 persson 729 - improved filter cutoff calculation by adding support for the
189     following gig parameters: Cutoff freq (used when no cutoff
190     controller is defined), Control invert, Minimum cutoff, Velocity
191 persson 791 curve and Velocity range. The keyboard tracking now scales
192     cutoff frequency instead of resonance.
193 persson 877 - added support for gig parameter Resonance.
194 schoenebeck 775 - fixed bug in sysex handling (patch by Juan Linietsky)
195 schoenebeck 781 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
196     which can be overridden with --enable-global-attenuation
197 persson 783 - EG fixes: made the length of "attack hold" stage more
198     accurate. Release stage can now start before attack stage
199 persson 797 ends. Cancel release didn't work when sustain was zero. Attack
200     time now has a minimal value to prevent clicks.
201 persson 799 - fixed pitch changes larger than one octave
202 schoenebeck 829 - fixed EG3 (pitch envelope) synthesis which was neutral all the time
203     - implemented portamento mode and solo mode (a.k.a 'mono mode'):
204     all modes can be altered via standard GM messages, that is CC5 for
205     altering portamento time, CC65 for enabling / disabling portamento
206     mode, CC126 for enabling solo mode and CC127 for disabling solo mode
207 persson 832 - fine tuning of the curves for volume (CC7), pan (CC10 and gig
208     parameter) and crossfade
209 persson 831 - added support for the "attenuation controller threshold" gig
210     parameter
211 persson 832 - added smoothing of volume changes caused by control change
212     messages
213 persson 865 - sample loop parameters are now taken from the DimensionRegion
214     instead of the wave chunk
215     - fixed keyswitching for v3 gigs with a number of keyswitch splits
216     not equal to a power of two
217 persson 877 - reimplementation of the filter algorithm. The new filter is more
218     accurate and supports all gig filter types, including bandreject
219     and lowpass turbo.
220 persson 903 - real support for 24 bit samples - samples are not truncated to
221     16 bits anymore
222     - support for aftertouch (channel pressure, not polyphonic
223     aftertouch)
224 persson 922 - LFO1 behaviour fixed (dampening from max volume instead of
225     amplifying from 0)
226 persson 696
227 schoenebeck 711 * LSCP server:
228     - fixed application exit on broken pipe error (fixes bug #20)
229 iliev 793 - fixed the notification messages delay due to lack of
230     network activity (fixes bug #26)
231 schoenebeck 826 - fixed parser bug which occured on space(s) within device parameters
232     (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
233 schoenebeck 711
234 schoenebeck 838 * audio driver:
235     - added aRts audio output driver (by no means RT safe)
236    
237 schoenebeck 775 * MIDI driver:
238     - fixed legacy sysex code which caused dispatching of MIDI SysEx
239     messages several times instead of once
240 schoenebeck 906 - API extension for MIDI drivers which already supply exact time stamps
241     for events (i.e. for offline rendering based MIDI drivers)
242 persson 922 - added checks for bad MIDI data
243 schoenebeck 775
244 schoenebeck 900 * linuxsampler application:
245     - show available sampler engine types on startup
246    
247 schoenebeck 705 * general changes:
248     - support for muting sampler channels and solo mode of the same, two new
249     LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
250     fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
251     introduced for this, the behavior is the same like on a mixer console
252 iliev 716 (patch by Grigor Iliev, a bit adjusted). Also added configure option
253     --enable-process-muted-channels which can be used to enable the
254     processing of muted channels.
255 iliev 777 - support for sostenuto pedal
256 iliev 779 - support for monitoring the total number of active voices
257 iliev 778 (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
258     SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
259 persson 835 - fixed some memory management errors
260 persson 841 - fixed some concurrency problems that could lead to crashes when
261     LSCP commands were executed
262 schoenebeck 925 - fixed crash when instrument loading failed previously on the same
263     sampler channel (fixes bug #36)
264 schoenebeck 705
265 schoenebeck 692 Version 0.3.3 (15 July 2005)
266 schoenebeck 686
267     * packaging changes:
268     - fixed compilation with gcc 4.0
269    
270 schoenebeck 687 * Gigasampler format engine:
271     - LFO preprocessing was performed even though the respective LFO was
272     disabled by the instrument patch (minor efficiency fix)
273 schoenebeck 688 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
274     for volume ramp downs in the same fragment (needed for current voice
275     stealing implementation) then simply inform the user with a warning
276     about possible click sounds and reduce the volume ramp down
277     appropriately instead of cancelling the audio device connection
278 schoenebeck 687
279 schoenebeck 677 Version 0.3.2 (24 June 2005)
280 schoenebeck 609
281     * packaging changes:
282     - updated autotools build files to compile on OS X
283     (conditional compilation of CoreMIDI and MidiShare drivers)
284 schoenebeck 617 - hand-crafted assembly optimization code can be disabled with
285     './configure --disable-asm' (definitely not recommended)
286 schoenebeck 654 - fixed 'make dist' rule to include all necessary files
287     - require automake (>= 1.5) for 'make -f Makefile.cvs'
288     (due to 'dist-bzip2' automake option)
289 schoenebeck 649
290     * Gigasampler format engine:
291     - support for the gig parameters for "release velocity response" curves
292     - fine tuning of the EGADSR envelope
293     - volume of release triggered samples now depends on note-on velocity,
294     note length and gig parameter "release trigger decay" instead of
295     note-off velocity.
296 schoenebeck 663 - revised voice stealing
297     (fixes crash and endless loop caused by voice stealing)
298 schoenebeck 659 - don't reset scale tuning on instrument or audio output device change
299 schoenebeck 668 - handle key group conflicts right at the beginning of each fragment
300     instead of when the respective voice is actually launched
301     (fixes undefined behavior if stolen voices belonged to a key group -
302     this case was followed by a "killed voice survived" error message)
303 schoenebeck 669 - fixed minor issue with null/silence samples
304     (those stole voices even though they don't need a voice at all which
305     resulted in "voice stealing didn't work out" messages)
306 schoenebeck 670 - don't reset volume, pan, pitch and MIDI controller values on
307     instrument or audio output device change
308 schoenebeck 654
309 schoenebeck 620 * LSCP server:
310 schoenebeck 654 - fixed some crashes (patch by Grigor Iliev, fixes #19)
311 schoenebeck 660 - fixed LSCP event "CHANNEL_INFO" notification
312 schoenebeck 670 (e.g. did not notify on volume changes or MIDI program change events)
313 schoenebeck 609
314 schoenebeck 668 * linuxsampler application:
315     - added command line parameters --lscp-addr and --lscp-port to override
316     default IP address and port of LSCP server
317    
318 schoenebeck 579 Version 0.3.1 (24 May 2005)
319    
320     * initial release

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