[pulseaudio-discuss] [PATCH v13 05/10] bluetooth: Add A2DP aptX and aptX HD codecs support

Pali Rohár pali.rohar at gmail.com
Tue Oct 8 16:42:48 UTC 2019

On Monday 07 October 2019 10:32:10 Hyperion wrote:
> Not sure it's expired worlwide. In case it is, it's good news. Fine for me.<br /><br />10:28, 7 octobre 2019, "Pali Rohár" <pali.rohar at gmail.com>:<br /><blockquote class="b4fd5cf2ec92bc68cb898700bb81355fwmi-quote"><p>If you mean EP<span class="177d5a4333ac019606de889e143743a1wmi-callto">0398973</span>B1 then it is already expired. I'm not aware of<br />other patents covering aptX. So I think libopenaptx should be safe here.<br /><br />But I'm not lawyer and do not understand jurisdiction across whole<br />world, but I guess it is same problem as with expired patents for MP3.<br /><br />Why should be prohibited to distribute clean room LGPL written code as<br />binary?<br /><br />On Monday 07 October 2019 10:11:39 Hyperion wrote:<br /></p><blockquote class="b4fd5cf2ec92bc68cb898700bb81355fwmi-quote"> both libraries are comming from the same reverse-engineering of a PROPRIETARY PATENTED codec, and BOTH are subject to lawsuit in case it is widely distributed as binary. <br /><br /> JP<br /><br /> 07.10.2019, 10:06, "Pali Rohár" <<a href="mailto:pali.rohar at gmail.com">pali.rohar at gmail.com</a>>:<br /> > But that is something different. Look at commit message where is link to<br /> > correct library for building.<br /> ><br /> > On Monday 07 October 2019 10:05:52 Hyperion wrote:<br /> >>  Sorry, I should have provided the link to the source GIT <a href="https://github.com/Arkq/openaptx">https://github.com/Arkq/openaptx</a><br />
> ...

Please do not send such emails to public mailing list, it is hard to
read them and targeted people just need to spend more times to parse
them, before they can reply to it...

About worlwide expiration, I do not know if there are countries in which
aptX patent is still active, but based on fact that aptX codec is more
than 20 years old I guess it should have expired in majority of

Moreover compilation and packaging of software is distributions job
(like RedHat or Suse). And aptX support in pulseaudio is optional.
Everybody can decide if want to compile also additional aptX support or

So I really do not see a problem there. LGPL license allows it.

Pali Rohár
pali.rohar at gmail.com
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