Is there a KMP solution for decoding in-memory AAC audio data? In particular, I’m looking for someth...

# multiplatform

[Mark]

Is there a KMP solution for decoding in-memory AAC audio data? In particular, I’m looking for something that works on iOS (I already have an Android solution using native APIs), but later also desktop.

[François]

iOS has a native feature about encoding/decode AAC

[Mark]

Thanks Francois, is that only decoding files though? I need to decode in-memory data.

[François]

Never try but chatgpt say yes 😄

[Mark]

Haha, Claude said no, so took me down some other path. I’ll investigate…

[ephemient]

just provide your own callbacks to https://developer.apple.com/documentation/audiotoolbox/audio-file-services

[ephemient]

on desktop, perhaps https://jaadec.sourceforge.net/ with javax.sound

[Nguyen Duc Tuan Minh]

@Mark I am using GStreamer Java

[Mark]

The audio data I have is raw AAC (mono, 44100Hz). I have a decoder interface that takes one frame at a time and returns a ByteArray of decoded PCM data. My implementation on Android works fine. The codec is sent a config packet ([18, 8]) and then the raw AAC frames are sent one by one. I can’t seem to get the configuration right on ios. Claude has had about 100 attempts and already given up!

[François]

For audiotoolbox, you should look after the apple dev forum or stackoverflow.

[François]

That’s purely iOS api not kotlin