Feature Request - [REQUEST] A new AudioEngine sink for AAudio API for Pro Audio

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Hedda Offline
Posts: 676
Joined: Feb 2013
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Post: #1
AAudio is a new Android C API introduced in the Android O preview release. It is designed for high-performance audio applications that require low latency. Apps communicate with AAudio by reading and writing data to streams.


Assume that Kodi needs a new AudioEngine sink to utilize this on Android 8.0 "O" (Oreo?)?


Why? Well first you have the new gaming features inside Kodi with RetroPlayer which could use a low-latency API for audio.

Another example to get high fidelity audio output when not bitstreaming, like when using Audio DSP addons. As DSP adds latency. Using a low-latency API could compensate for that.

Read http://forum.kodi.tv/showthread.php?tid=252871

As well as Audio_DSP (wiki)

And all other threads in the Audio DSP forum http://forum.kodi.tv/forumdisplay.php?fid=235

AchimTuran vision is for Kodi to get native high fidelity audio output without bitstreaming.
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Koying Offline
Team-Kodi Developer
Posts: 5,780
Joined: Sep 2008
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Location: Brussels, Belgium
Post: #2
For reference, the same discussion for SPMC: https://github.com/koying/SPMC/issues/901 Wink

Obviously, same question: What's the point of a low-latency, PCM-only new sink for a media player...
Note that it's nothing revolutionary, either. OpenSL ES in Android is already supported since a long time (https://developer.android.com/ndk/guides...arted.html) and is at least a standard.
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AchimTuran Offline
Team-Kodi Member
Posts: 568
Joined: Jan 2014
Reputation: 14
Location: Germany
Post: #3
Not every audio algorithm introduces delay.

Is audio delay currently an issue from RetroPlayer? To be honest never really used it. I guess if we would have a delay we should try to fix this first with some adaptions to AE and RetroPlayer. A ~0 delay sink wouldn't help if we have a huge delay in an other stage.

Latest news about AudioDSP and my libraries are available on Twitter.

Developers can follow me on Github.
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