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RtAudio - a set of C++ classes that provide a common API for realtime audio input/output across Linux (native ALSA, JACK, and OSS), Macintosh OS X (CoreAudio and JACK), and Windows (DirectSound and ASIO) operating systems.
By Gary P. Scavone, 2001-2007.
v4.0.2: (21 August 2007)
- fix to RtError::WARNING typo in RtAudio.h (RtApiDummy)
- removed "+1"s in RtApiCore c++ append when getting device name
v4.0.1: (13 August 2007)
- fix to RtError::WARNING typo in RtAudio.cpp
v4.0.0: (7 August 2007)
- new support for non-interleaved user data
- additional input/output parameter specifications, including channel offset
- new support for dynamic connection of devices
- new support for stream time
- revised callback arguments, including separate input and output buffer arguments
- revised C++ exception handling
- revised OSS support for version 4.0
- discontinued support of blocking functionality
- discontinued support of SGI
- Windows DirectSound API bug fix
- NetBSD support (using OSS API) by Emmanuel Dreyfus
- changed default pthread scheduling priority to SCHED_RR when defined in the system
- new getCompiledApi() static function
- new getCurrentApi(), getStreamTime(), getStreamLatency(), and isStreamRunning() functions
- modified RtAudioDeviceInfo structure to distinguish default input and output devices
v3.0.3: (18 November 2005)
- UNICODE fix for Windows DirectSound API
- MinGW compiler fix for ASIO API
v3.0.2: (14 October 2005)
- modification of ALSA read/write order to fix duplex under/overruns
- added synchronization of input/output devices for ALSA duplex operation
- cleaned up and improved error reporting throughout
- bug fix in Windows DirectSound support for 8-bit audio
- bug fix in Windows DirectSound support during device capture query
- added ASIOOutputReady() call near end of callbackEvent to fix some driver behavior
- added #include <stdio.h> to RtAudio.cpp
- fixed bug in RtApiCore for duplex operation with different I/O devices
- improvements to DirectX pointer chasing (by Robin Davies)
- backdoor RtDsStatistics hook provides DirectX performance information (by Robin Davies)
- bug fix for non-power-of-two Asio granularity used by Edirol PCR-A30 (by Robin Davies)
- auto-call CoInitialize for DSOUND and ASIO platforms (by Robin Davies)
v3.0.1: (22 March 2004)
- bug fix in Windows DirectSound support for cards with output only
v3.0: (11 March 2004)
- added Linux Jack audio server support
- new multi-api support by subclassing all apis and making rtaudio a controller class
- added over/underload check to Mac OS X support
- new scheme for blocking functionality in callback-based apis (CoreAudio, ASIO, and JACK)
- removed multiple stream support (all stream indentifier arguments removed)
- various style and name changes to conform with standard C++ practice
v2.1.1: (24 October 2002)
- bug fix in duplex for Mac OS X and Windows ASIO code
- duplex example change in tutorial
v2.1: (7 October 2002)
- added Mac OS X CoreAudio support
- added Windows ASIO support
- API change to getDeviceInfo(): device argument must be an integer between 1 - getDeviceCount().
- "configure" support added for unix systems
- adopted MIT-like license
- various internal structural changes and bug fixes
v2.01: (27 April 2002)
- Windows destructor bug fix when no devices available
- RtAudioError class renamed to RtError
- Preprocessor definitions changed slightly (i.e. __LINUX_OSS_ to __LINUX_OSS__) to conform with new Synthesis ToolKit distribution
v2.0: (22 January 2002)
- first release of new independent class
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