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Audio plugin host https://kx.studio/carla
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Carla/source/backend/engine/rtaudio-4.0.12/doc/release.txt

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  1. RtAudio - a set of C++ classes that provide a common API for realtime audio input/output across Linux (native ALSA, JACK, PulseAudio, and OSS), Macintosh OS X (CoreAudio and JACK), and Windows (DirectSound and ASIO) operating systems.

  2. 

  3. By Gary P. Scavone, 2001-2013.

  4. 

  5. v4.0.12: (16 April 2013)

  6. - new functionality to allow error reporting via a client-supplied function (thanks to Pavel Mogilevskiy)

  7. - new function to return the version number

  8. - updated RtAudio.cpp and ASIO files for UNICODE support (thanks to Renaud Schoonbroodt)

  9. - updates to PulseAudio API support (thanks to Peter Meerwald and Tristan Matthews)

  10. - updates for pkg-config support in configure script

  11. - 24-bit format changed to true 24-bit format, not sub-bytes of 32-bits (thanks to Marc Britton)

  12. - bug fixes to make sure stream status is closed if error during probeDeviceOpen

  13. - updates / fixes to SCHED_RR code in ALSA (thanks to Marc Lindahl)

  14. - various changes to avoid global variables (thanks to Martin Koegler)

  15. 

  16. v4.0.11: (14 June 2012)

  17. - fixes for memory leaks in ALSA (thanks to Martin Koegler)

  18. - PulseAudio API support added (thanks to Peter Meerwald and Tristan Matthews)

  19. - bitwise format flag fixes in OS-X (Benjamin Schroeder and Stefan Arisona)

  20. - changes to stopStream / drain flag to avoid hung state in ASIO, DS, OS-X, and Jack APIs (Rasmus Ekman and Carlos Luna)

  21. 

  22. v4.0.10: (30 August 2011)

  23. - fix for compile bug in Windows DS (counting devices)

  24. - update to configure and library Makefile

  25. 

  26. v4.0.9: (14 August 2011)

  27. - fix for ASIO problem enumerating devices after opening duplex stream (Oliver Larkin)

  28. - fix for OS-X problems setting sample rate and bits-per-sample

  29. - updates for OS-X "Lion"

  30. - updates for wide character support in Windows DS (UNICODE)

  31. - fix for possible ALSA callback thread hang (thanks to Tristan Matthews)

  32. - fix for DS getDeviceCount bug (vector erase problem)

  33. 

  34. v4.0.8: (12 April 2011)

  35. - fix for MinGW4 problem enumerating and setting sample rates (iasiothiscallresolver, Dmitry Kostjuchenko)

  36. - fix for OS-X problem handling device names in some languages (CFString conversion, Vincent Bénony)

  37. - small change to OS-X mutex lock location to avoid lockups

  38. - correction to documentation regarding 24-bit data (should be lower 3 bytes, not upper 3 bytes)

  39. - bug fix for error handling of warnings (Antoine Lefebvre)

  40. - added option to use the ALSA "default" device (Tristan Matthews)

  41. - removed use of mutexes in Windows

  42. - fix for ASIO4ALL behavior when stopping/closing streams (Antoine Lefebvre)

  43. - included python binding in "contrib" directory (beta, Antoine Lefebvre)

  44. 

  45. v4.0.7: (4 February 2010)

  46. - revised Windows DS code and device enumeration to speed up device queries

  47. - OS-X 10.6 updates for deprecated functions

  48. - updates to Jack shutdown code to avoid lockup

  49. 

  50. v4.0.6: (3 June 2009)

  51. - bug fix in ALSA code to set period size to power of two (thanks to Joakim Karrstrom)

  52. - bug fix in OS-X for OS < 10.5 ... need preprocessor definition around new variable type (thanks to Tristan Matthews)

  53. 

  54. v4.0.5: (2 February 2009)

  55. - added support in CoreAudio for arbitrary stream channel configurations

  56. - added getStreamSampleRate() function because the actual sample rate can sometimes vary slightly from the specified one (thanks to Theo Veenker)

  57. - added new StreamOptions flag "RTAUDIO_SCHEDULE_REALTIME" and attribute "priority" to StreamOptions (thanks to Theo Veenker)

  58. - replaced usleep(50000) in callbackEvent() by a wait on condition variable which gets signaled in startStream() (thanks to Theo Veenker)

  59. - fix for Jack API when user callback function signals stop or abort calls

  60. - fix to way stream state is changed to avoid infinite loop problem

  61. - fix to int<->float conversion in convertBuffer() (thanks to Theo Veenker)

  62. - bug fix in byteSwapBuffer() (thanks to Stefan Muller Arisona and Theo Veenker)

  63. - fixed a few gcc 4.4 errors in OS-X

  64. - fixed bug in rtaudio-config script

  65. - revised configure script and Makefile structures

  66. - 64-bit fixes in ALSA API (thanks to Stefan Muller Arisona)

  67. - fixed ASIO sample rate selection bug (thanks to Sasha Zheligovsky)

  68. 

  69. v4.0.4: (24 January 2008)

  70. - added functionality to allow getDeviceInfo() to work in ALSA for an open device (like ASIO)

  71. - fixes in configure script

  72. - fixed clearing of error message stream in error()

  73. - fixed RtAudio::DeviceInfo description in "probing" documentation

  74. - memory leak fixes in ALSA and OSS

  75. - Jack in/out port flag fix

  76. - Windows changes for thread priority and GLOBALFOCUS

  77. 

  78. v4.0.3: (7 December 2007)

  79. - added support for MinGW compiler to configure script

  80. - a few MinGW-related changes to RtAudio.cpp

  81. - renamed test program probe.cpp to audioprobe.cpp

  82. - moved various header files into single "include" directory and updated VC++ project files

  83. 

  84. v4.0.2: (21 August 2007)

  85. - fix to RtError::WARNING typo in RtAudio.h (RtApiDummy)

  86. - removed "+1"s in RtApiCore c++ append when getting device name

  87. 

  88. v4.0.1: (13 August 2007)

  89. - fix to RtError::WARNING typo in RtAudio.cpp

  90. 

  91. v4.0.0: (7 August 2007)

  92. - new support for non-interleaved user data

  93. - additional input/output parameter specifications, including channel offset

  94. - new support for dynamic connection of devices

  95. - new support for stream time

  96. - revised callback arguments, including separate input and output buffer arguments

  97. - revised C++ exception handling

  98. - revised OSS support for version 4.0

  99. - discontinued support of blocking functionality

  100. - discontinued support of SGI

  101. - Windows DirectSound API bug fix

  102. - NetBSD support (using OSS API) by Emmanuel Dreyfus

  103. - changed default pthread scheduling priority to SCHED_RR when defined in the system

  104. - new getCompiledApi() static function

  105. - new getCurrentApi(), getStreamTime(), getStreamLatency(), and isStreamRunning() functions

  106. - modified RtAudioDeviceInfo structure to distinguish default input and output devices

  107. 

  108. v3.0.3: (18 November 2005)

  109. - UNICODE fix for Windows DirectSound API

  110. - MinGW compiler fix for ASIO API

  111. 

  112. v3.0.2: (14 October 2005)

  113. - modification of ALSA read/write order to fix duplex under/overruns

  114. - added synchronization of input/output devices for ALSA duplex operation

  115. - cleaned up and improved error reporting throughout

  116. - bug fix in Windows DirectSound support for 8-bit audio

  117. - bug fix in Windows DirectSound support during device capture query

  118. - added ASIOOutputReady() call near end of callbackEvent to fix some driver behavior

  119. - added #include <stdio.h> to RtAudio.cpp

  120. - fixed bug in RtApiCore for duplex operation with different I/O devices

  121. - improvements to DirectX pointer chasing (by Robin Davies)

  122. - backdoor RtDsStatistics hook provides DirectX performance information (by Robin Davies)

  123. - bug fix for non-power-of-two Asio granularity used by Edirol PCR-A30 (by Robin Davies)

  124. - auto-call CoInitialize for DSOUND and ASIO platforms (by Robin Davies)

  125. 

  126. v3.0.1: (22 March 2004)

  127. - bug fix in Windows DirectSound support for cards with output only

  128. 

  129. v3.0: (11 March 2004)

  130. - added Linux Jack audio server support

  131. - new multi-api support by subclassing all apis and making rtaudio a controller class

  132. - added over/underload check to Mac OS X support

  133. - new scheme for blocking functionality in callback-based apis (CoreAudio, ASIO, and JACK)

  134. - removed multiple stream support (all stream indentifier arguments removed)

  135. - various style and name changes to conform with standard C++ practice

  136. 

  137. v2.1.1: (24 October 2002)

  138. - bug fix in duplex for Mac OS X and Windows ASIO code

  139. - duplex example change in tutorial 

  140. 

  141. v2.1: (7 October 2002)

  142. - added Mac OS X CoreAudio support

  143. - added Windows ASIO support

  144. - API change to getDeviceInfo(): device argument must be an integer between 1 - getDeviceCount().

  145. - "configure" support added for unix systems

  146. - adopted MIT-like license

  147. - various internal structural changes and bug fixes

  148. 

  149. v2.01: (27 April 2002)

  150. - Windows destructor bug fix when no devices available

  151. - RtAudioError class renamed to RtError

  152. - Preprocessor definitions changed slightly (i.e. __LINUX_OSS_ to __LINUX_OSS__) to conform with new Synthesis ToolKit distribution

  153. 

  154. v2.0: (22 January 2002)

  155. - first release of new independent class