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README for PortAudio |
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/* |
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* PortAudio Portable Real-Time Audio Library |
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* Latest Version at: http://www.portaudio.com |
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* |
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* Copyright (c) 1999-2008 Phil Burk and Ross Bencina |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining |
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* a copy of this software and associated documentation files |
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* (the "Software"), to deal in the Software without restriction, |
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* including without limitation the rights to use, copy, modify, merge, |
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* publish, distribute, sublicense, and/or sell copies of the Software, |
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* and to permit persons to whom the Software is furnished to do so, |
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* subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be |
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* included in all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR |
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF |
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* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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*/ |
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|
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/* |
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* The text above constitutes the entire PortAudio license; however, |
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* the PortAudio community also makes the following non-binding requests: |
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* |
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* Any person wishing to distribute modifications to the Software is |
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* requested to send the modifications to the original developer so that |
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* they can be incorporated into the canonical version. It is also |
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* requested that these non-binding requests be included along with the |
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* license above. |
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*/ |
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PortAudio is a portable audio I/O library designed for cross-platform |
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support of audio. It uses either a callback mechanism to request audio |
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processing, or blocking read/write calls to buffer data between the |
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native audio subsystem and the client. Audio can be processed in various |
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formats, including 32 bit floating point, and will be converted to the |
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native format internally. |
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Documentation: |
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Documentation is available in "/doc/html/index.html" |
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Also see "src/common/portaudio.h" for API spec. |
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Also see http://www.portaudio.com/docs/ |
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And see the "test/" directory for many examples of usage |
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(we suggest "test/patest_saw.c" for an example) |
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For information on compiling programs with PortAudio, please see the |
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tutorial at: |
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http://portaudio.com/trac/wiki/TutorialDir/TutorialStart |
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We have an active mailing list for user and developer discussions. |
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Please feel free to join. See http://www.portaudio.com for details. |
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Important Files and Folders: |
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include/portaudio.h = header file for PortAudio API. Specifies API. |
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src/common/ = platform independant code, host independant |
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code for all implementations. |
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src/os = os specific (but host api neutral) code |
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src/hostapi = implementations for different host apis |
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Host API Implementations: |
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src/hostapi/alsa = Advanced Linux Sound Architecture (ALSA) |
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src/hostapi/asihpi = AudioScience HPI |
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src/hostapi/asio = ASIO for Windows and Macintosh |
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src/hostapi/coreaudio = Macintosh Core Audio for OS X |
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src/hostapi/dsound = Windows Direct Sound |
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src/hostapi/jack = JACK Audio Connection Kit |
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src/hostapi/oss = Unix Open Sound System (OSS) |
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src/hostapi/wasapi = Windows Vista WASAPI |
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src/hostapi/wdmks = Windows WDM Kernel Streaming |
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src/hostapi/wmme = Windows MultiMedia Extensions (MME) |
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Test Programs: |
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test/pa_fuzz.c = guitar fuzz box |
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test/pa_devs.c = print a list of available devices |
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test/pa_minlat.c = determine minimum latency for your machine |
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test/paqa_devs.c = self test that opens all devices |
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test/paqa_errs.c = test error detection and reporting |
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test/patest_clip.c = hear a sine wave clipped and unclipped |
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test/patest_dither.c = hear effects of dithering (extremely subtle) |
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test/patest_pink.c = fun with pink noise |
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test/patest_record.c = record and playback some audio |
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test/patest_maxsines.c = how many sine waves can we play? Tests Pa_GetCPULoad(). |
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test/patest_sine.c = output a sine wave in a simple PA app |
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test/patest_sync.c = test syncronization of audio and video |
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test/patest_wire.c = pass input to output, wire simulator |