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hello world
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Timothee 'TTimo' Besset
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
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<plist version="1.0">
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<dict>
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<key>CFBundleDevelopmentRegion</key>
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<string>English</string>
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<key>CFBundleExecutable</key>
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<string>OpenAL</string>
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<key>CFBundleGetInfoString</key>
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<string>OpenAL</string>
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<key>CFBundleInfoDictionaryVersion</key>
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<string>6.0</string>
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<key>CFBundleName</key>
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<string>OpenAL</string>
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<key>CFBundlePackageType</key>
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<string>FMWK</string>
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<key>CFBundleShortVersionString</key>
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<string>OpenAL</string>
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<key>CFBundleSignature</key>
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<string>????</string>
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<key>CFBundleVersion</key>
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<string>1.0.1d1</string>
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<key>CSResourcesFileMapped</key>
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<true/>
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</dict>
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</plist>
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86
neo/openal/osx/OpenAL.framework/Versions/A/Resources/READ_ME
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86
neo/openal/osx/OpenAL.framework/Versions/A/Resources/READ_ME
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February 13th, 2004 - Apple Computer Inc.
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updated: March 15th, 2004 - Apple Computer Inc.
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----------------------------------------------------------------------------------------------------------------------
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READ ME: OPEN AL - OSX IMPLEMENTATION USING THE 3DMIXER AUDIOUNIT
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----------------------------------------------------------------------------------------------------------------------
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This Read Me should accompany the 3DMixer implementation of OpenAL (Open Audio Library).
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CoreAUdio SDK Requirements
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-----------------------
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Building this implementation of OpenAL for Mac OSX requires the latest CoreAudio SDK (version 1.3.1), due to it use
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of new CoreAudio Public Utility classes.
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CoreAudio Version requirements
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-----------------------
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There are Recommended and Minimum CoreAudio framework and component pieces for running this implementation
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of OpenAL for Mac OSX:
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Recommended:
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------------
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OSX: version 10.2.6 AND
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QuickTime: version 6.5.1
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AudioToolbox.framework (version 1.3.2)
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AudioUnit.framework (version 1.3.2)
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CoreAudio.component (version 1.3.2 - this version contains the 2.0 version of the 3DMixer AudioUnit)
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Minimum:
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------------
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OSX: version 10.2 (Jaguar) AND
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QuickTime: version 6.4
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AudioToolbox.framework (version 1.2xxxxx)
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AudioUnit.framework (version 1.2xxxxx)
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CoreAudio.component (version 1.2xxxxxx - this version contains the 1.3 version of the 3DMixer AudioUnit)
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----------------------------------------------------------------------------------------------------------------------
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OpenAL Extensions:
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----------------------------------------------------------------------------------------------------------------------
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This implementation has the following OpenAL extensions. These constants can be found in the included "alctypes.h" header.
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***** ALC_CONVERT_DATA_UPON_LOADING
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This extension allows the caller to tell OpenAL to preconvert to the native CoreAudio format, the audio data passed to the
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library with the alBufferData() call. Preconverting the audio data, reduces CPU usage by removing an audio data conversion
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(per source) at render timem at the expense of a larger memory footprint.
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This feature is toggled on/off by using the alDisable() & alEnable() APIs. This setting will be applied to all subsequent
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calls to alBufferData().
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***** ALC_SPATIAL_RENDERING_QUALITY
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This extension allows the application to specify the quality of spatial rendering to better suit the resources of the CPU.
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At this time, the quality settings are only applied when rendering to stereo hw. All multichannel rendering uses the same
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spatilaization setting on the 3DMixer. Use the alSetInteger() & alGetInteger() APIs to specify and retrieve this setting.
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This implmentation provides 2 setting constants: ALC_SPATIAL_RENDERING_QUALITY_HIGH (HRTF)
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ALC_SPATIAL_RENDERING_QUALITY_LOW (EqualPowerPanning)
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note: This implementation applies the setting to all the OAL Sources of an OAL Context. However, spatial settings can be applied to
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each input bus of the 3DMixer, so it is possible to have this setting on a per OAL Source basis, allowing the developer to give
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quality priorities to the various sounds used in an application.
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note: Currently, all stereo sounds are 'passed thru' with no spatial rendering applied. This has the best output quality for rendering
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what are typically background sound tracks. However, the 3DMixer has the ability to render a stereo source to a spatial coordinate
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if this was desired and support to do so would be trivial.
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***** ALC_MIXER_OUTPUT_RATE
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This extension allows the developer to let the AudioGraph be efficient about sample rate conversion. If for example, all sounds
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being played have a sample rate of 44k, but the output hardware is set to 48k, then it is best for the 3DMixer to leave the
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the audio data (Mixer Outputut Rate) at 44k, letting the output AU rate convert the streams after they have been mixed. By default,
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this is set to 44k which is very common sample rate for sound hw.
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***** ALC_MIXER_MAXIMUM_BUSSES
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This extension allows the developer to optimize the 3DMixer by setting it available input bus count. This allows the 3DMixer to be as
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efficient as possible in resource allocations. By default, the 3DMixer currently defaults to 64 busses (note: the 1.3 version of the
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3DMixer does not respect this setting, so always confirm the bus count with a get call, after setting the bus count and creating a new device).
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Use: set the bus count before making a call to alOpenDevice(). This will cause the library to set the mixer to you desired bus count.
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as it creates the AUGraph. Use the alSetInteger() & alGetInteger() APIs to specify and retrieve this setting.
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***** ALC_RENDER_CHANNEL_COUNT
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Because the audio system has no way to know if a user has actually connected a speaker to an output of the audio hardware, it may be desired
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to allow the user to clamp all rendering to stereo. Use the alSetInteger() & alGetInteger() APIs to specify and retrieve this setting.
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This implmentation provides 2 setting constants: ALC_RENDER_CHANNEL_COUNT_STEREO (clamp the 3DMixer output rendering to stereo, regardless of the hw capabilities)
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ALC_RENDER_CHANNEL_COUNT_MULTICHANNEL (try and render to the maximum speakers possible by interrogating the device)
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----------------------------------------------------------------------------------------------------------------------
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----------------------------------------------------------------------------------------------------------------------
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@@ -0,0 +1,8 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
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<plist version="1.0">
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<dict>
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<key>PBXProjectSourcePath</key>
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<string>/Users/mmarks/Development/OpenAL/openal/macosx/al_osx.xcode</string>
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</dict>
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</plist>
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