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Posted to bluesky-dev@incubator.apache.org by Arthur Chen <zi...@gmail.com> on 2009/09/07 12:17:16 UTC
oss problem
Hi all,
I thought we have solved the oss problem last time for Kevin and I deleted
some code related to OSS, but we didn't notice that OSS is used to capture
audio,. The APIs of OSS is in <linux/soundcard.h>,. Generally speaking OSS
is used as soundcard driver, but it is GPLed. Another Linux soundcard driver
is ALSA, it has LGPLed version.
To capture audio, the using of APIs of soundcard driver is inevitable, so
maybe we should use ALSA to replace OSS.
Best regards,
Arthur
Re: oss problem
Posted by Samuel Kevin <lo...@gmail.com>.
quote from ALSA mailing list:
http://mailman.alsa-project.org/pipermail/alsa-devel/2007-October/003582.html
At Thu, 11 Oct 2007 18:14:14 +1000,
WOODEN John wrote:
>*
*>* I wish to use either the ALSA or SALSA API within my application.
I also intend to commercially distribute my application and sell it.
*>*
*>* What affect does ALSA's and/or SALSA's Lesser GPL license have
upon applications that utilize their API's?
*>*
*>* Do I have to make the source code of my application freely
available if I choose to utilize the ALSA or SALSA API?
*
I expected someone answered better about such a question than me, but
so far, I see no reply yet...
AFAIK, LGPL allows you the binary-form distribution without disclosure
of your source code as long as you link the LGPL'ed library
dynamically.
Takashi
2009/9/7 Arthur Chen <zi...@gmail.com>
> Hi Kevin,
>
> I have searched the Internet and found some article on how to install alsa
> manually, I think we can have a try.
> Sorry for the spell mistake of LGPLed.
> Regards,
> Kevin
> 2009/9/7 Samuel Kevin <lo...@gmail.com>
>
> > 2009/9/7 Arthur Chen <zi...@gmail.com>
> >
> > > Hi Kevin，
> > >
> > > I know ALSA is used in Ubuntu system for alsa-base package is
> installed
> > on
> > > it. But we don't know the license of the deb package, I think we should
> > >
> > maybe we could ask that on the forum of Ubuntu . it is embarassed to ask
> > users to compiled the sound driver again manually....
> >
> > > download the alsa source package, compiled it as GPLed like ffmpeg,
> then
> > we
> > >
> > GPLed? should be LGPLed
> >
> > > use the APIs of ALSA to capture audio.
> > >
> > > Regards,
> > > Arthur
> > > 2009/9/7 Samuel Kevin <lo...@gmail.com>
> > >
> > > > hi Arthur:
> > > > The last step is always the hardest. Alsa now is popular in linux
> > > > distribution, at least in my Ubuntu. i just checked it and i found
> that
> > > it
> > > > is both GPLed and LGPLed. It is quiet awkward that how could i know
> > > whether
> > > > the alsa driver in my system is GPLed or LGPLed?
> > > > regards
> > > > Kevin
> > > >
> > > > 2009/9/7 Arthur Chen <zi...@gmail.com>
> > > >
> > > > > Hi all,
> > > > >
> > > > > I thought we have solved the oss problem last time for Kevin and I
> > > > deleted
> > > > > some code related to OSS, but we didn't notice that OSS is used to
> > > > capture
> > > > > audio,. The APIs of OSS is in <linux/soundcard.h>,. Generally
> > speaking
> > > > OSS
> > > > > is used as soundcard driver, but it is GPLed. Another Linux
> soundcard
> > > > > driver
> > > > > is ALSA, it has LGPLed version.
> > > > > To capture audio, the using of APIs of soundcard driver is
> > inevitable,
> > > so
> > > > > maybe we should use ALSA to replace OSS.
> > > > >
> > > > > Best regards,
> > > > > Arthur
> > > > >
> > > >
> > > >
> > > >
> > > > --
> > > > Bowen Ma a.k.a Samuel Kevin @ Bluesky Dev Team XJTU
> > > > Shaanxi Province Key Lab. of Satellite and Terrestrial Network Tech
> > > > http://incubator.apache.org/bluesky/
> > > >
> > >
> >
> >
> >
> > --
> > Bowen Ma a.k.a Samuel Kevin @ Bluesky Dev Team XJTU
> > Shaanxi Province Key Lab. of Satellite and Terrestrial Network Tech
> > http://incubator.apache.org/bluesky/
> >
>
--
Bowen Ma a.k.a Samuel Kevin @ Bluesky Dev Team XJTU
Shaanxi Province Key Lab. of Satellite and Terrestrial Network Tech
http://incubator.apache.org/bluesky/
Re: oss problem
Posted by Samuel Kevin <lo...@gmail.com>.
hi, Arthur:
i've post the consultation on ALSA mailinglist, hope there's good news.
I still think that it is not handy to let users recompiled ALSA sound drive
again.......
regards,
Kevin
2009/9/7 Arthur Chen <zi...@gmail.com>
> Hi Kevin,
>
> I have searched the Internet and found some article on how to install alsa
> manually, I think we can have a try.
> Sorry for the spell mistake of LGPLed.
> Regards,
> Kevin
> 2009/9/7 Samuel Kevin <lo...@gmail.com>
>
> > 2009/9/7 Arthur Chen <zi...@gmail.com>
> >
> > > Hi Kevin，
> > >
> > > I know ALSA is used in Ubuntu system for alsa-base package is
> installed
> > on
> > > it. But we don't know the license of the deb package, I think we should
> > >
> > maybe we could ask that on the forum of Ubuntu . it is embarassed to ask
> > users to compiled the sound driver again manually....
> >
> > > download the alsa source package, compiled it as GPLed like ffmpeg,
> then
> > we
> > >
> > GPLed? should be LGPLed
> >
> > > use the APIs of ALSA to capture audio.
> > >
> > > Regards,
> > > Arthur
> > > 2009/9/7 Samuel Kevin <lo...@gmail.com>
> > >
> > > > hi Arthur:
> > > > The last step is always the hardest. Alsa now is popular in linux
> > > > distribution, at least in my Ubuntu. i just checked it and i found
> that
> > > it
> > > > is both GPLed and LGPLed. It is quiet awkward that how could i know
> > > whether
> > > > the alsa driver in my system is GPLed or LGPLed?
> > > > regards
> > > > Kevin
> > > >
> > > > 2009/9/7 Arthur Chen <zi...@gmail.com>
> > > >
> > > > > Hi all,
> > > > >
> > > > > I thought we have solved the oss problem last time for Kevin and I
> > > > deleted
> > > > > some code related to OSS, but we didn't notice that OSS is used to
> > > > capture
> > > > > audio,. The APIs of OSS is in <linux/soundcard.h>,. Generally
> > speaking
> > > > OSS
> > > > > is used as soundcard driver, but it is GPLed. Another Linux
> soundcard
> > > > > driver
> > > > > is ALSA, it has LGPLed version.
> > > > > To capture audio, the using of APIs of soundcard driver is
> > inevitable,
> > > so
> > > > > maybe we should use ALSA to replace OSS.
> > > > >
> > > > > Best regards,
> > > > > Arthur
> > > > >
> > > >
> > > >
> > > >
> > > > --
> > > > Bowen Ma a.k.a Samuel Kevin @ Bluesky Dev Team XJTU
> > > > Shaanxi Province Key Lab. of Satellite and Terrestrial Network Tech
> > > > http://incubator.apache.org/bluesky/
> > > >
> > >
> >
> >
> >
> > --
> > Bowen Ma a.k.a Samuel Kevin @ Bluesky Dev Team XJTU
> > Shaanxi Province Key Lab. of Satellite and Terrestrial Network Tech
> > http://incubator.apache.org/bluesky/
> >
>
--
Bowen Ma a.k.a Samuel Kevin @ Bluesky Dev Team XJTU
Shaanxi Province Key Lab. of Satellite and Terrestrial Network Tech
http://incubator.apache.org/bluesky/
Re: oss problem
Posted by Arthur Chen <zi...@gmail.com>.
Hi Kevin,
I have searched the Internet and found some article on how to install alsa
manually, I think we can have a try.
Sorry for the spell mistake of LGPLed.
Regards,
Kevin
2009/9/7 Samuel Kevin <lo...@gmail.com>
> 2009/9/7 Arthur Chen <zi...@gmail.com>
>
> > Hi Kevin，
> >
> > I know ALSA is used in Ubuntu system for alsa-base package is installed
> on
> > it. But we don't know the license of the deb package, I think we should
> >
> maybe we could ask that on the forum of Ubuntu . it is embarassed to ask
> users to compiled the sound driver again manually....
>
> > download the alsa source package, compiled it as GPLed like ffmpeg, then
> we
> >
> GPLed? should be LGPLed
>
> > use the APIs of ALSA to capture audio.
> >
> > Regards,
> > Arthur
> > 2009/9/7 Samuel Kevin <lo...@gmail.com>
> >
> > > hi Arthur:
> > > The last step is always the hardest. Alsa now is popular in linux
> > > distribution, at least in my Ubuntu. i just checked it and i found that
> > it
> > > is both GPLed and LGPLed. It is quiet awkward that how could i know
> > whether
> > > the alsa driver in my system is GPLed or LGPLed?
> > > regards
> > > Kevin
> > >
> > > 2009/9/7 Arthur Chen <zi...@gmail.com>
> > >
> > > > Hi all,
> > > >
> > > > I thought we have solved the oss problem last time for Kevin and I
> > > deleted
> > > > some code related to OSS, but we didn't notice that OSS is used to
> > > capture
> > > > audio,. The APIs of OSS is in <linux/soundcard.h>,. Generally
> speaking
> > > OSS
> > > > is used as soundcard driver, but it is GPLed. Another Linux soundcard
> > > > driver
> > > > is ALSA, it has LGPLed version.
> > > > To capture audio, the using of APIs of soundcard driver is
> inevitable,
> > so
> > > > maybe we should use ALSA to replace OSS.
> > > >
> > > > Best regards,
> > > > Arthur
> > > >
> > >
> > >
> > >
> > > --
> > > Bowen Ma a.k.a Samuel Kevin @ Bluesky Dev Team XJTU
> > > Shaanxi Province Key Lab. of Satellite and Terrestrial Network Tech
> > > http://incubator.apache.org/bluesky/
> > >
> >
>
>
>
> --
> Bowen Ma a.k.a Samuel Kevin @ Bluesky Dev Team XJTU
> Shaanxi Province Key Lab. of Satellite and Terrestrial Network Tech
> http://incubator.apache.org/bluesky/
>
Re: oss problem
Posted by Samuel Kevin <lo...@gmail.com>.
2009/9/7 Arthur Chen <zi...@gmail.com>
> Hi Kevin，
>
> I know ALSA is used in Ubuntu system for alsa-base package is installed on
> it. But we don't know the license of the deb package, I think we should
>
maybe we could ask that on the forum of Ubuntu . it is embarassed to ask
users to compiled the sound driver again manually....
> download the alsa source package, compiled it as GPLed like ffmpeg, then we
>
GPLed? should be LGPLed
> use the APIs of ALSA to capture audio.
>
> Regards,
> Arthur
> 2009/9/7 Samuel Kevin <lo...@gmail.com>
>
> > hi Arthur:
> > The last step is always the hardest. Alsa now is popular in linux
> > distribution, at least in my Ubuntu. i just checked it and i found that
> it
> > is both GPLed and LGPLed. It is quiet awkward that how could i know
> whether
> > the alsa driver in my system is GPLed or LGPLed?
> > regards
> > Kevin
> >
> > 2009/9/7 Arthur Chen <zi...@gmail.com>
> >
> > > Hi all,
> > >
> > > I thought we have solved the oss problem last time for Kevin and I
> > deleted
> > > some code related to OSS, but we didn't notice that OSS is used to
> > capture
> > > audio,. The APIs of OSS is in <linux/soundcard.h>,. Generally speaking
> > OSS
> > > is used as soundcard driver, but it is GPLed. Another Linux soundcard
> > > driver
> > > is ALSA, it has LGPLed version.
> > > To capture audio, the using of APIs of soundcard driver is inevitable,
> so
> > > maybe we should use ALSA to replace OSS.
> > >
> > > Best regards,
> > > Arthur
> > >
> >
> >
> >
> > --
> > Bowen Ma a.k.a Samuel Kevin @ Bluesky Dev Team XJTU
> > Shaanxi Province Key Lab. of Satellite and Terrestrial Network Tech
> > http://incubator.apache.org/bluesky/
> >
>
--
Bowen Ma a.k.a Samuel Kevin @ Bluesky Dev Team XJTU
Shaanxi Province Key Lab. of Satellite and Terrestrial Network Tech
http://incubator.apache.org/bluesky/
Re: oss problem
Posted by Arthur Chen <zi...@gmail.com>.
Hi Kevin，
I know ALSA is used in Ubuntu system for alsa-base package is installed on
it. But we don't know the license of the deb package, I think we should
download the alsa source package, compiled it as GPLed like ffmpeg, then we
use the APIs of ALSA to capture audio.
Regards,
Arthur
2009/9/7 Samuel Kevin <lo...@gmail.com>
> hi Arthur:
> The last step is always the hardest. Alsa now is popular in linux
> distribution, at least in my Ubuntu. i just checked it and i found that it
> is both GPLed and LGPLed. It is quiet awkward that how could i know whether
> the alsa driver in my system is GPLed or LGPLed?
> regards
> Kevin
>
> 2009/9/7 Arthur Chen <zi...@gmail.com>
>
> > Hi all,
> >
> > I thought we have solved the oss problem last time for Kevin and I
> deleted
> > some code related to OSS, but we didn't notice that OSS is used to
> capture
> > audio,. The APIs of OSS is in <linux/soundcard.h>,. Generally speaking
> OSS
> > is used as soundcard driver, but it is GPLed. Another Linux soundcard
> > driver
> > is ALSA, it has LGPLed version.
> > To capture audio, the using of APIs of soundcard driver is inevitable, so
> > maybe we should use ALSA to replace OSS.
> >
> > Best regards,
> > Arthur
> >
>
>
>
> --
> Bowen Ma a.k.a Samuel Kevin @ Bluesky Dev Team XJTU
> Shaanxi Province Key Lab. of Satellite and Terrestrial Network Tech
> http://incubator.apache.org/bluesky/
>
Re: oss problem
Posted by Samuel Kevin <lo...@gmail.com>.
hi Arthur:
The last step is always the hardest. Alsa now is popular in linux
distribution, at least in my Ubuntu. i just checked it and i found that it
is both GPLed and LGPLed. It is quiet awkward that how could i know whether
the alsa driver in my system is GPLed or LGPLed?
regards
Kevin
2009/9/7 Arthur Chen <zi...@gmail.com>
> Hi all,
>
> I thought we have solved the oss problem last time for Kevin and I deleted
> some code related to OSS, but we didn't notice that OSS is used to capture
> audio,. The APIs of OSS is in <linux/soundcard.h>,. Generally speaking OSS
> is used as soundcard driver, but it is GPLed. Another Linux soundcard
> driver
> is ALSA, it has LGPLed version.
> To capture audio, the using of APIs of soundcard driver is inevitable, so
> maybe we should use ALSA to replace OSS.
>
> Best regards,
> Arthur
>
--
Bowen Ma a.k.a Samuel Kevin @ Bluesky Dev Team XJTU
Shaanxi Province Key Lab. of Satellite and Terrestrial Network Tech
http://incubator.apache.org/bluesky/