| OpenSL ES | |
|---|---|
 | |
| Developer | Khronos Group, Inc. |
| Stable release | 1.1 / January 18, 2011; 15 years ago (2011-01-18) |
| Operating system | Cross-platform |
| Type | API |
| License | Royalty free |
| Website | www |
OpenSL ES (Open Sound Library for Embedded Systems) is a royalty-free,cross-platform,hardware-accelerated,C-language audioAPI for 2D and 3D audio. It provides access to features such as3D positional audio andMIDI playback. It is made for developers in the mobile and gaming industry and is working toward allowing for easy porting of applications across multiple platforms.
The OpenSL ES API has five major features:
The features ofAudio Playback and Recording andBasic MIDI are common withOpenMAX AL.
OpenSL ES utilizes an object oriented design to give application developers access to the audio functionality. The object model is shared withOpenMAX AL, and a device manufacturer can choose to implement one or both of the APIs. Together the two APIs give access to a wide range of functionality of the device's multimedia engine.
The design goal of OpenSL ES is to give application developers access to advanced audio features such as3D positional audioandMIDI playback while striving for easy application porting between manufacturers and platforms.It is developed primarily for application developers in the mobile and gaming industry.
To avoid fragmentation, OpenSL ES is divided up into three profiles:
Each profile is designed for the respective device needs with a specific set of audio functionalities.A vendor can choose to be conformant with only one or with any combination of profiles.
An application can query the OpenSL ES implementation to find out which profiles are supported.The application developer can then design their application to either work with only the common parts of the profiles, or adapt to the available functionality as given by the profiles in the device it is running on.An application developer can also specify both the minimum and the optimal profile requirements.
OpenSL ES is managed by thenon-profit technologyconsortiumKhronos Group. The current chair of the OpenSL ES working group is Erik Noreke.