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rtaudio/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, ASIO and WASAPI) operating systems.

  2. 

  3. By Gary P. Scavone, 2001-2017.

  4. 

  5. v5.0.0: (30 August 2017)

  6. - see git history for complete list of changes

  7. - WASAPI updates (thanks to Marcus Tomlinson)

  8. - minor exception semantic changes

  9. - miscellaneous build system updates

  10. 

  11. v4.1.2: (22 February 2016)

  12. - added more complete automake support (thanks to Stephen Sinclair)

  13. - miscellaneous small fixes and updates, see github repo commit history for details

  14. 

  15. v4.1.1: (26 April 2014)

  16. - updates to WASAPI API for MinGW compiling

  17. - WASAPI bug fixes for audio INPUT mode

  18. - DirectSound bug fix for INPUT mode

  19. - Bug fixes in Core, Jack, ASIO and DS for internal draining in INPUT mode

  20. - updates to test programs for default device specifiers

  21. - CMake buildfile update for WASAPI

  22. - new setStreamTime function

  23. 

  24. v4.1.0: (10 April 2014)

  25. - RtError class renamed RtAudioError and embedded in RtAudio.h (RtError.h deleted)

  26. - new support for the Windows WASAPI API (thanks to Marcus Tomlinson)

  27. - CMake support (thanks to Berkus Decker)

  28. - pulse audio update to support bufferFrames argument with audio input (thanks to Jonatan Wallmander)

  29. - fixes for ALSA API to avoid high CPU usage during stops and to clear stale data before input (thanks to Pluto Hades)

  30. - miscellaneous efficiency updates suggested by Martin Koegler

  31. - bug fix for OS-X xrun reporting problem

  32. - bug fix related to error when opening a stream after closing a previously open stream

  33. 

  34. v4.0.12: (16 April 2013)

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

  36. - new function to return the version number

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

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

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

  40. - 24-bit format changed to true 24-bit format, not sub-bytes of 32-bits (thanks to Marc Britton)

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

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

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

  44. 

  45. v4.0.11: (14 June 2012)

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

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

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

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

  50. 

  51. v4.0.10: (30 August 2011)

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

  53. - update to configure and library Makefile

  54. 

  55. v4.0.9: (14 August 2011)

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

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

  58. - updates for OS-X "Lion"

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

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

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

  62. 

  63. v4.0.8: (12 April 2011)

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

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

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

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

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

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

  70. - removed use of mutexes in Windows

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

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

  73. 

  74. v4.0.7: (4 February 2010)

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

  76. - OS-X 10.6 updates for deprecated functions

  77. - updates to Jack shutdown code to avoid lockup

  78. 

  79. v4.0.6: (3 June 2009)

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

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

  82. 

  83. v4.0.5: (2 February 2009)

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

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

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

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

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

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

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

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

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

  93. - fixed bug in rtaudio-config script

  94. - revised configure script and Makefile structures

  95. - 64-bit fixes in ALSA API (thanks to Stefan Muller Arisona)

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

  97. 

  98. v4.0.4: (24 January 2008)

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

  100. - fixes in configure script

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

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

  103. - memory leak fixes in ALSA and OSS

  104. - Jack in/out port flag fix

  105. - Windows changes for thread priority and GLOBALFOCUS

  106. 

  107. v4.0.3: (7 December 2007)

  108. - added support for MinGW compiler to configure script

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

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

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

  112. 

  113. v4.0.2: (21 August 2007)

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

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

  116. 

  117. v4.0.1: (13 August 2007)

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

  119. 

  120. v4.0.0: (7 August 2007)

  121. - new support for non-interleaved user data

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

  123. - new support for dynamic connection of devices

  124. - new support for stream time

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

  126. - revised C++ exception handling

  127. - revised OSS support for version 4.0

  128. - discontinued support of blocking functionality

  129. - discontinued support of SGI

  130. - Windows DirectSound API bug fix

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

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

  133. - new getCompiledApi() static function

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

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

  136. 

  137. v3.0.3: (18 November 2005)

  138. - UNICODE fix for Windows DirectSound API

  139. - MinGW compiler fix for ASIO API

  140. 

  141. v3.0.2: (14 October 2005)

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

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

  144. - cleaned up and improved error reporting throughout

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

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

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

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

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

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

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

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

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

  154. 

  155. v3.0.1: (22 March 2004)

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

  157. 

  158. v3.0: (11 March 2004)

  159. - added Linux Jack audio server support

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

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

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

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

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

  165. 

  166. v2.1.1: (24 October 2002)

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

  168. - duplex example change in tutorial 

  169. 

  170. v2.1: (7 October 2002)

  171. - added Mac OS X CoreAudio support

  172. - added Windows ASIO support

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

  174. - "configure" support added for unix systems

  175. - adopted MIT-like license

  176. - various internal structural changes and bug fixes

  177. 

  178. v2.01: (27 April 2002)

  179. - Windows destructor bug fix when no devices available

  180. - RtAudioError class renamed to RtError

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

  182. 

  183. v2.0: (22 January 2002)

  184. - first release of new independent class