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Revision 1345 - (hide annotations) (download)
Thu Sep 13 21:46:25 2007 UTC (16 years, 6 months ago) by iliev
File size: 15660 byte(s)
* added support for escape sequences to the instruments database

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

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