The OpenMAX DL (Development Layer) APIs contain a comprehensive set of audio, video, signal processing function primitives which can be implemented and optimized on various CPUs and hardware engines and then used for accelerated codec functionality.

dsp上用c语言实现的aac音频算法的编解码器代码，很不错哦！-dsp using c language of aac audio codec algorithm code, oh well!

A simple DMAI example showing audio decode using an AAC decoder and the Codec Engine (no error checking). Input is an elementary stream file and output is the sound device driver