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Add openaptx package to the OS

Description

Bluetooth audio is based on bluez-alsa, which can support SBC codec by default, and also aptx and aac when they are available.

aptx is the most popular at the moment; SBC is of lower quality.

The openaptx package is needed by bluez-alsa at build time to have aptx support.

Unfortunately there is currently no recipe to build this package.

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Tadao Tanikawa 
September 11, 2018 at 4:32 PM
(edited)

FFmpeg mentions the legal/patent issue here, https://www.ffmpeg.org/legal.html

Thierry Bultel 
September 11, 2018 at 9:18 AM

For information, the apt-x codec is already in ffmpeg since several months.

ffmpeg does not mention any legal issues.

Thierry Bultel 
September 6, 2018 at 7:56 AM

Let's just keep that in a corner for now, at least we have something to reply to users if they ask.

Thierry Bultel 
September 6, 2018 at 7:55 AM

Thanks Tanikawa-san, this sounds weird that a reverse engineered code can be affected by a proprietary license.

Apparently this is because the algorithm itself is patented. Patents on algorithm do no exist in Europe, but only in US, AFAIK.

Tadao Tanikawa 
September 5, 2018 at 12:38 PM

In my understanding, apt-X is a proprietary audio codec owned by Qualcomm.
As far as I know, the encoder is already opened for Android O and released as part of AOSP, but decoder is still proprietary.

 

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Created September 5, 2018 at 11:01 AM
Updated September 1, 2020 at 3:00 PM
Resolved September 1, 2020 at 2:59 PM

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