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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.
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- By Gary P. Scavone, 2001-2008.
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- v4.0.4: (24 January 2008)
- - added functionality to allow getDeviceInfo() to work in ALSA for an open device (like ASIO)
- - fixes in configure script
- - fixed clearing of error message stream in error()
- - fixed RtAudio::DeviceInfo description in "probing" documentation
- - memory leak fixes in ALSA and OSS
- - Jack in/out port flag fix
- - Windows changes for thread priority and GLOBALFOCUS
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- v4.0.3: (7 December 2007)
- - added support for MinGW compiler to configure script
- - a few MinGW-related changes to RtAudio.cpp
- - renamed test program probe.cpp to audioprobe.cpp
- - moved various header files into single "include" directory and updated VC++ project files
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- 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
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- v4.0.1: (13 August 2007)
- - fix to RtError::WARNING typo in RtAudio.cpp
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- 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
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- v3.0.3: (18 November 2005)
- - UNICODE fix for Windows DirectSound API
- - MinGW compiler fix for ASIO API
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- 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)
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- v3.0.1: (22 March 2004)
- - bug fix in Windows DirectSound support for cards with output only
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- 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
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- v2.1.1: (24 October 2002)
- - bug fix in duplex for Mac OS X and Windows ASIO code
- - duplex example change in tutorial
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- 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
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- 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
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- v2.0: (22 January 2002)
- - first release of new independent class
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