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Revision 1297 - (hide annotations) (download)
Thu Aug 16 15:55:21 2007 UTC (13 years, 1 month ago) by iliev
File size: 14699 byte(s)
* bugfix: the active stream/voice count statistic was incorrect

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 schoenebeck 1212 - 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 schoenebeck 1221 - 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 schoenebeck 1233 - 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 persson 1248 - fixed some minor memory leaks
60 schoenebeck 1259 - reenabled assembly features support, at the moment only for
61     enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
62 schoenebeck 947
63     * MIDI driver:
64     - dispatch bank select (MSB and LSB) messages
65    
66 schoenebeck 1049 * 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 persson 951 * 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 persson 1038 - 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 persson 1039 - EG fix: a release value of zero could cause noises or crash
80 schoenebeck 1041 - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
81 persson 1046 - 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 persson 1147 - more EG fixes: the level could sometimes go below zero and cause
85     noises or crashes
86 schoenebeck 1149 - minor fix of EGDecay (patch by Toshi Nagata)
87 schoenebeck 1181 - fixed compiler error when --enable-override-filter-type was
88     supplied to the configure script (fixes #46)
89 persson 951
90 schoenebeck 1244 * 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 schoenebeck 1245 - 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 schoenebeck 1252 - 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 schoenebeck 1244
103 iliev 959 * Bug fixes:
104     - fixed crash occurring on certain LSCP scripts (Bug 39)
105 persson 1038 - another thread safety fix for lscp "load engine" and "set
106     channel audio output device"
107 iliev 1283 - fixed a crash which occurs when reassigning the same engine
108     on a sampler channel with connected MIDI device
109 iliev 1295 - 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 iliev 1296 - 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 iliev 1297 - The active stream/voice count statistic was incorrect.
116 iliev 959
117 schoenebeck 1221 * test cases:
118     - updated and fixed (haven't been touched in a while)
119    
120 schoenebeck 937 Version 0.4.0 (24 November 2006)
121 persson 696
122 schoenebeck 697 * packaging changes:
123 capela 868 - changed deprecated copyright attribute to license; added ldconfig
124     to post-(un)install steps; added devel package for liblinuxsampler;
125     to linuxsampler.spec (RPM)
126 schoenebeck 697 - install necessary development header files for allowing 3rd party
127     applications to link against liblinuxsampler
128     - liblinuxsampler's API documentation can be generated with 'make docs'
129     (Doxygen required)
130 schoenebeck 715 - added benchmark to automatically detect the best triangle LFO
131     implementation (currently either an integer math solution or a
132     di-harmonic approximation), automatic detection can be overriden
133     with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
134     configure script argument though (mandatory for cross-compilation)
135 schoenebeck 829 - do not automatically pick optimized gcc flags if the user already
136     provided some on his own (as CXXFLAGS)
137 schoenebeck 849 - added compile time option to disable processing of All-Notes-Off MIDI
138     messages
139 schoenebeck 852 - added compile time options to allow disabling the various audio and
140     MIDI drivers
141 schoenebeck 909 - fixed automatic GCC CPU switch detection on PPC
142     (patch by Ebrahim Mayat)
143 schoenebeck 697
144 persson 696 * Gigasampler format engine:
145 schoenebeck 738 - extensive synthesis optimization
146     (reimplementation of EGs and LFO(s), removed synthesis parameter
147     prerendering and the synthesis parameter matrix in general, splitting
148     each audio fragment into subfragments now where each subfragment uses
149 persson 830 constant pitch and filter coefficients. The volume coefficient is
150     linearly interpolated inside a subfragment, unless
151     --disable-interpolate-volume is set.)
152 persson 696 - fine tuning of the EG modulation parameters
153 persson 729 - improved filter cutoff calculation by adding support for the
154     following gig parameters: Cutoff freq (used when no cutoff
155     controller is defined), Control invert, Minimum cutoff, Velocity
156 persson 791 curve and Velocity range. The keyboard tracking now scales
157     cutoff frequency instead of resonance.
158 persson 877 - added support for gig parameter Resonance.
159 schoenebeck 775 - fixed bug in sysex handling (patch by Juan Linietsky)
160 schoenebeck 781 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
161     which can be overridden with --enable-global-attenuation
162 persson 783 - EG fixes: made the length of "attack hold" stage more
163     accurate. Release stage can now start before attack stage
164 persson 797 ends. Cancel release didn't work when sustain was zero. Attack
165     time now has a minimal value to prevent clicks.
166 persson 799 - fixed pitch changes larger than one octave
167 schoenebeck 829 - fixed EG3 (pitch envelope) synthesis which was neutral all the time
168     - implemented portamento mode and solo mode (a.k.a 'mono mode'):
169     all modes can be altered via standard GM messages, that is CC5 for
170     altering portamento time, CC65 for enabling / disabling portamento
171     mode, CC126 for enabling solo mode and CC127 for disabling solo mode
172 persson 832 - fine tuning of the curves for volume (CC7), pan (CC10 and gig
173     parameter) and crossfade
174 persson 831 - added support for the "attenuation controller threshold" gig
175     parameter
176 persson 832 - added smoothing of volume changes caused by control change
177     messages
178 persson 865 - sample loop parameters are now taken from the DimensionRegion
179     instead of the wave chunk
180     - fixed keyswitching for v3 gigs with a number of keyswitch splits
181     not equal to a power of two
182 persson 877 - reimplementation of the filter algorithm. The new filter is more
183     accurate and supports all gig filter types, including bandreject
184     and lowpass turbo.
185 persson 903 - real support for 24 bit samples - samples are not truncated to
186     16 bits anymore
187     - support for aftertouch (channel pressure, not polyphonic
188     aftertouch)
189 persson 922 - LFO1 behaviour fixed (dampening from max volume instead of
190     amplifying from 0)
191 persson 696
192 schoenebeck 711 * LSCP server:
193     - fixed application exit on broken pipe error (fixes bug #20)
194 iliev 793 - fixed the notification messages delay due to lack of
195     network activity (fixes bug #26)
196 schoenebeck 826 - fixed parser bug which occured on space(s) within device parameters
197     (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
198 schoenebeck 711
199 schoenebeck 838 * audio driver:
200     - added aRts audio output driver (by no means RT safe)
201    
202 schoenebeck 775 * MIDI driver:
203     - fixed legacy sysex code which caused dispatching of MIDI SysEx
204     messages several times instead of once
205 schoenebeck 906 - API extension for MIDI drivers which already supply exact time stamps
206     for events (i.e. for offline rendering based MIDI drivers)
207 persson 922 - added checks for bad MIDI data
208 schoenebeck 775
209 schoenebeck 900 * linuxsampler application:
210     - show available sampler engine types on startup
211    
212 schoenebeck 705 * general changes:
213     - support for muting sampler channels and solo mode of the same, two new
214     LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
215     fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
216     introduced for this, the behavior is the same like on a mixer console
217 iliev 716 (patch by Grigor Iliev, a bit adjusted). Also added configure option
218     --enable-process-muted-channels which can be used to enable the
219     processing of muted channels.
220 iliev 777 - support for sostenuto pedal
221 iliev 779 - support for monitoring the total number of active voices
222 iliev 778 (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
223     SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
224 persson 835 - fixed some memory management errors
225 persson 841 - fixed some concurrency problems that could lead to crashes when
226     LSCP commands were executed
227 schoenebeck 925 - fixed crash when instrument loading failed previously on the same
228     sampler channel (fixes bug #36)
229 schoenebeck 705
230 schoenebeck 692 Version 0.3.3 (15 July 2005)
231 schoenebeck 686
232     * packaging changes:
233     - fixed compilation with gcc 4.0
234    
235 schoenebeck 687 * Gigasampler format engine:
236     - LFO preprocessing was performed even though the respective LFO was
237     disabled by the instrument patch (minor efficiency fix)
238 schoenebeck 688 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
239     for volume ramp downs in the same fragment (needed for current voice
240     stealing implementation) then simply inform the user with a warning
241     about possible click sounds and reduce the volume ramp down
242     appropriately instead of cancelling the audio device connection
243 schoenebeck 687
244 schoenebeck 677 Version 0.3.2 (24 June 2005)
245 schoenebeck 609
246     * packaging changes:
247     - updated autotools build files to compile on OS X
248     (conditional compilation of CoreMIDI and MidiShare drivers)
249 schoenebeck 617 - hand-crafted assembly optimization code can be disabled with
250     './configure --disable-asm' (definitely not recommended)
251 schoenebeck 654 - fixed 'make dist' rule to include all necessary files
252     - require automake (>= 1.5) for 'make -f Makefile.cvs'
253     (due to 'dist-bzip2' automake option)
254 schoenebeck 649
255     * Gigasampler format engine:
256     - support for the gig parameters for "release velocity response" curves
257     - fine tuning of the EGADSR envelope
258     - volume of release triggered samples now depends on note-on velocity,
259     note length and gig parameter "release trigger decay" instead of
260     note-off velocity.
261 schoenebeck 663 - revised voice stealing
262     (fixes crash and endless loop caused by voice stealing)
263 schoenebeck 659 - don't reset scale tuning on instrument or audio output device change
264 schoenebeck 668 - handle key group conflicts right at the beginning of each fragment
265     instead of when the respective voice is actually launched
266     (fixes undefined behavior if stolen voices belonged to a key group -
267     this case was followed by a "killed voice survived" error message)
268 schoenebeck 669 - fixed minor issue with null/silence samples
269     (those stole voices even though they don't need a voice at all which
270     resulted in "voice stealing didn't work out" messages)
271 schoenebeck 670 - don't reset volume, pan, pitch and MIDI controller values on
272     instrument or audio output device change
273 schoenebeck 654
274 schoenebeck 620 * LSCP server:
275 schoenebeck 654 - fixed some crashes (patch by Grigor Iliev, fixes #19)
276 schoenebeck 660 - fixed LSCP event "CHANNEL_INFO" notification
277 schoenebeck 670 (e.g. did not notify on volume changes or MIDI program change events)
278 schoenebeck 609
279 schoenebeck 668 * linuxsampler application:
280     - added command line parameters --lscp-addr and --lscp-port to override
281     default IP address and port of LSCP server
282    
283 schoenebeck 579 Version 0.3.1 (24 May 2005)
284    
285     * initial release

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