AAC decoding with a free Windows Library? 2019-03-12 16:34:09 This is my first post here, and I hope to get some help with a technical problem concerning AAC-decoding. I am looking for a 64-Bit AAC decoding library on Windows for use in an Open Source project which I am running.The mentioned project is QIRX, a Software-Defined-Radio (SDR), featuring a demodulator for DAB+ audio broadcast transmissions, allowing to listen to DAB+ with cheapest RTL-SDR dongles as receiving frontends. The software is running on Windows as a 64-Bit application.QIRX is using the libfaad decoder for converting the AAC stream to PCM16. Although this works very well, I would like to change to another decoder, for licensing reasons. libfaad is GPL licensed, whereas e.g. ffmpeg is LGPL licensed.I created raw AAC coded files (ADTS headers) from QIRX , and tried different programs to decode them. Among those were ffmpeg and foobar2000 in version 1.4.3. beta 4.foobar2000 was the only program I could find on Win10 decoding my AAC files correctly. ffmpeg produced stuttering output with tons of error messages on its console.My question: Does anyone knows how foobar2000 decodes the AAC? They state to use ffmpeg (if I got it right). Maybe it is used in another configuration than the ffmpeg I used. Would they perhaps be willing to share the dll they are using?Any help or information would be appreciated!