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Revision 1305 - (hide annotations) (download)
Mon Aug 27 07:51:28 2007 UTC (16 years, 7 months ago) by iliev
File size: 14972 byte(s)
* added default min and max values to restrict the number of allowed
  audio output channels and MIDI input ports
* the connection to the PCM interface is now closed when destroying
  an audio output device

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 1298 - notification events were not been sent for some sampler
117     channel changes
118 iliev 1305 - added default min and max values to restrict the number of allowed
119     audio output channels and MIDI input ports
120     - the pcm is now closed when destroying an audio output device
121 iliev 959
122 schoenebeck 1221 * test cases:
123     - updated and fixed (haven't been touched in a while)
124    
125 schoenebeck 937 Version 0.4.0 (24 November 2006)
126 persson 696
127 schoenebeck 697 * packaging changes:
128 capela 868 - changed deprecated copyright attribute to license; added ldconfig
129     to post-(un)install steps; added devel package for liblinuxsampler;
130     to linuxsampler.spec (RPM)
131 schoenebeck 697 - install necessary development header files for allowing 3rd party
132     applications to link against liblinuxsampler
133     - liblinuxsampler's API documentation can be generated with 'make docs'
134     (Doxygen required)
135 schoenebeck 715 - added benchmark to automatically detect the best triangle LFO
136     implementation (currently either an integer math solution or a
137     di-harmonic approximation), automatic detection can be overriden
138     with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
139     configure script argument though (mandatory for cross-compilation)
140 schoenebeck 829 - do not automatically pick optimized gcc flags if the user already
141     provided some on his own (as CXXFLAGS)
142 schoenebeck 849 - added compile time option to disable processing of All-Notes-Off MIDI
143     messages
144 schoenebeck 852 - added compile time options to allow disabling the various audio and
145     MIDI drivers
146 schoenebeck 909 - fixed automatic GCC CPU switch detection on PPC
147     (patch by Ebrahim Mayat)
148 schoenebeck 697
149 persson 696 * Gigasampler format engine:
150 schoenebeck 738 - extensive synthesis optimization
151     (reimplementation of EGs and LFO(s), removed synthesis parameter
152     prerendering and the synthesis parameter matrix in general, splitting
153     each audio fragment into subfragments now where each subfragment uses
154 persson 830 constant pitch and filter coefficients. The volume coefficient is
155     linearly interpolated inside a subfragment, unless
156     --disable-interpolate-volume is set.)
157 persson 696 - fine tuning of the EG modulation parameters
158 persson 729 - improved filter cutoff calculation by adding support for the
159     following gig parameters: Cutoff freq (used when no cutoff
160     controller is defined), Control invert, Minimum cutoff, Velocity
161 persson 791 curve and Velocity range. The keyboard tracking now scales
162     cutoff frequency instead of resonance.
163 persson 877 - added support for gig parameter Resonance.
164 schoenebeck 775 - fixed bug in sysex handling (patch by Juan Linietsky)
165 schoenebeck 781 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
166     which can be overridden with --enable-global-attenuation
167 persson 783 - EG fixes: made the length of "attack hold" stage more
168     accurate. Release stage can now start before attack stage
169 persson 797 ends. Cancel release didn't work when sustain was zero. Attack
170     time now has a minimal value to prevent clicks.
171 persson 799 - fixed pitch changes larger than one octave
172 schoenebeck 829 - fixed EG3 (pitch envelope) synthesis which was neutral all the time
173     - implemented portamento mode and solo mode (a.k.a 'mono mode'):
174     all modes can be altered via standard GM messages, that is CC5 for
175     altering portamento time, CC65 for enabling / disabling portamento
176     mode, CC126 for enabling solo mode and CC127 for disabling solo mode
177 persson 832 - fine tuning of the curves for volume (CC7), pan (CC10 and gig
178     parameter) and crossfade
179 persson 831 - added support for the "attenuation controller threshold" gig
180     parameter
181 persson 832 - added smoothing of volume changes caused by control change
182     messages
183 persson 865 - sample loop parameters are now taken from the DimensionRegion
184     instead of the wave chunk
185     - fixed keyswitching for v3 gigs with a number of keyswitch splits
186     not equal to a power of two
187 persson 877 - reimplementation of the filter algorithm. The new filter is more
188     accurate and supports all gig filter types, including bandreject
189     and lowpass turbo.
190 persson 903 - real support for 24 bit samples - samples are not truncated to
191     16 bits anymore
192     - support for aftertouch (channel pressure, not polyphonic
193     aftertouch)
194 persson 922 - LFO1 behaviour fixed (dampening from max volume instead of
195     amplifying from 0)
196 persson 696
197 schoenebeck 711 * LSCP server:
198     - fixed application exit on broken pipe error (fixes bug #20)
199 iliev 793 - fixed the notification messages delay due to lack of
200     network activity (fixes bug #26)
201 schoenebeck 826 - fixed parser bug which occured on space(s) within device parameters
202     (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
203 schoenebeck 711
204 schoenebeck 838 * audio driver:
205     - added aRts audio output driver (by no means RT safe)
206    
207 schoenebeck 775 * MIDI driver:
208     - fixed legacy sysex code which caused dispatching of MIDI SysEx
209     messages several times instead of once
210 schoenebeck 906 - API extension for MIDI drivers which already supply exact time stamps
211     for events (i.e. for offline rendering based MIDI drivers)
212 persson 922 - added checks for bad MIDI data
213 schoenebeck 775
214 schoenebeck 900 * linuxsampler application:
215     - show available sampler engine types on startup
216    
217 schoenebeck 705 * general changes:
218     - support for muting sampler channels and solo mode of the same, two new
219     LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
220     fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
221     introduced for this, the behavior is the same like on a mixer console
222 iliev 716 (patch by Grigor Iliev, a bit adjusted). Also added configure option
223     --enable-process-muted-channels which can be used to enable the
224     processing of muted channels.
225 iliev 777 - support for sostenuto pedal
226 iliev 779 - support for monitoring the total number of active voices
227 iliev 778 (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
228     SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
229 persson 835 - fixed some memory management errors
230 persson 841 - fixed some concurrency problems that could lead to crashes when
231     LSCP commands were executed
232 schoenebeck 925 - fixed crash when instrument loading failed previously on the same
233     sampler channel (fixes bug #36)
234 schoenebeck 705
235 schoenebeck 692 Version 0.3.3 (15 July 2005)
236 schoenebeck 686
237     * packaging changes:
238     - fixed compilation with gcc 4.0
239    
240 schoenebeck 687 * Gigasampler format engine:
241     - LFO preprocessing was performed even though the respective LFO was
242     disabled by the instrument patch (minor efficiency fix)
243 schoenebeck 688 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
244     for volume ramp downs in the same fragment (needed for current voice
245     stealing implementation) then simply inform the user with a warning
246     about possible click sounds and reduce the volume ramp down
247     appropriately instead of cancelling the audio device connection
248 schoenebeck 687
249 schoenebeck 677 Version 0.3.2 (24 June 2005)
250 schoenebeck 609
251     * packaging changes:
252     - updated autotools build files to compile on OS X
253     (conditional compilation of CoreMIDI and MidiShare drivers)
254 schoenebeck 617 - hand-crafted assembly optimization code can be disabled with
255     './configure --disable-asm' (definitely not recommended)
256 schoenebeck 654 - fixed 'make dist' rule to include all necessary files
257     - require automake (>= 1.5) for 'make -f Makefile.cvs'
258     (due to 'dist-bzip2' automake option)
259 schoenebeck 649
260     * Gigasampler format engine:
261     - support for the gig parameters for "release velocity response" curves
262     - fine tuning of the EGADSR envelope
263     - volume of release triggered samples now depends on note-on velocity,
264     note length and gig parameter "release trigger decay" instead of
265     note-off velocity.
266 schoenebeck 663 - revised voice stealing
267     (fixes crash and endless loop caused by voice stealing)
268 schoenebeck 659 - don't reset scale tuning on instrument or audio output device change
269 schoenebeck 668 - handle key group conflicts right at the beginning of each fragment
270     instead of when the respective voice is actually launched
271     (fixes undefined behavior if stolen voices belonged to a key group -
272     this case was followed by a "killed voice survived" error message)
273 schoenebeck 669 - fixed minor issue with null/silence samples
274     (those stole voices even though they don't need a voice at all which
275     resulted in "voice stealing didn't work out" messages)
276 schoenebeck 670 - don't reset volume, pan, pitch and MIDI controller values on
277     instrument or audio output device change
278 schoenebeck 654
279 schoenebeck 620 * LSCP server:
280 schoenebeck 654 - fixed some crashes (patch by Grigor Iliev, fixes #19)
281 schoenebeck 660 - fixed LSCP event "CHANNEL_INFO" notification
282 schoenebeck 670 (e.g. did not notify on volume changes or MIDI program change events)
283 schoenebeck 609
284 schoenebeck 668 * linuxsampler application:
285     - added command line parameters --lscp-addr and --lscp-port to override
286     default IP address and port of LSCP server
287    
288 schoenebeck 579 Version 0.3.1 (24 May 2005)
289    
290     * initial release

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