Dear users and Pulseaudio sound server developers,
I have worked with Linux from The time, when Ubuntu 7.04 has been released. In
this times, Gnome have contained Pulseaudio sound server. I have started to be
sad, that this excellent sound server, which has so many qualities, had issues
with
I'm not talking about old Bluez versions : only about the current stable 5.51,
and not talking about codec switchin either.
Just talking about improvement of MAX negociated values for SBC. Please take a
look at my latest patch.
07.10.2019, 16:22, "Pali Rohár" :
> Old bluez versions have bugs
Old bluez versions have bugs and different behavior. So not break
anything else and still have working audio playback, it is better to not
touch it and use what is currently supported / provided.
New features like additional codec support, codec switching, etc...
needs new bluez API and new
I disagree with "Also there would not be any feature/functional changes in
pulseaudio when older bluez version is in use".
Tests prove that there's no reason for this, if only one mode/profile is used.
JP
07.10.2019, 15:36, "Pali Rohár" :
> I will try to look what is the problem without
I will try to look what is the problem without --experimental. This
should work correctly prior merging this PR.
Need to --experimental is just temporary until support in bluez is not
fully stable. I guess it would be non-experimental in next bluez
version.
Also there would not be any
Without the --experimental flag : negociation stops (see hcidump below) and
device falls back to "Off" status.
btw : if you implement my (simple) negociation algorithm for the "Automatic
Quality" mode ; AND make it to work without --experimental Bluez flag : it
woiuld be close to perfect.
See
And what happened without --experimental?
Aim is to support all bluez versions also with and without
--experimental flag. Just for older versions (or without experimental)
it should behave like before this patch series -- only SBC codec in
automatic mode and no codec switching.
On Monday 07
Thanks, I forgot the "--experimental" param.
Works as expected, like the previous v12 serie of patches
JP
07.10.2019, 15:15, "Pali Rohár" :
> Can you check if you have Bluez 5.51 and bluetoothd daemon is running with
> --experimental param?
>
> And is not it possible to change profile from Off
Can you check if you have Bluez 5.51 and bluetoothd daemon is running with
--experimental param?
And is not it possible to change profile from Off to Automatic Quality?
On Monday 07 October 2019 15:08:59 Hyperion wrote:
> The 10 patches compile OK on PA master without warnings.
>
> But doesn't
The 10 patches compile OK on PA master without warnings.
But doesn't work (device is Off with "Automatic Quality unavailable" status).
Tested on 2 devices.
hcidump avdtp
HCI sniffer - Bluetooth packet analyzer ver 5.51
device: hci0 snap_len: 1500 filter: 0x400
< AVDTP(s): Discover cmd:
Not sure it's expired worlwide. In case it is, it's good news. Fine for me.10:28, 7 octobre 2019, "Pali Rohár" :If you mean EP0398973B1 then it is already expired. I'm not aware ofother patents covering aptX. So I think libopenaptx should be safe here.But I'm not lawyer and do not understand
If you mean EP0398973B1 then it is already expired. I'm not aware of
other patents covering aptX. So I think libopenaptx should be safe here.
But I'm not lawyer and do not understand jurisdiction across whole
world, but I guess it is same problem as with expired patents for MP3.
Why should be
On Mon, Oct 07, 2019 at 10:11:39AM +0200, Hyperion wrote:
> 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.
>
Afaik AptX patents expired already. That's why AptX codecs
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.
JP
07.10.2019, 10:06, "Pali Rohár" :
> But that is something different. Look at commit message where is link to
> correct
Sorry, I should have provided the link to the source GIT
https://github.com/Arkq/openaptx
JP
07.10.2019, 09:51, "Pali Rohár" :
> On Monday 07 October 2019 09:47:21 Hyperion wrote:
>> Quotig OpenAPTX Github README :
>> "This project is for research purposes only. Without a proper license
>>
But that is something different. Look at commit message where is link to
correct library for building.
On Monday 07 October 2019 10:05:52 Hyperion wrote:
> Sorry, I should have provided the link to the source GIT
> https://github.com/Arkq/openaptx
>
> JP
>
>
> 07.10.2019, 09:51, "Pali Rohár"
Hi Pali,
I believe that the average user SHOULD be provided a high quality sound by
default. And legacy low quality bitrates SHOULD be a workaround.
IMHO, an "AUTOMATIC mode with max XQ bitrates and DUAL CHANNEL mode prefered"
(aka : max negociated bitpool = 38 per channel) : SHOULD be the
On Monday 07 October 2019 09:47:21 Hyperion wrote:
> Quotig OpenAPTX Github README :
> "This project is for research purposes only. Without a proper license private
> and commercial usage might be a case of a patent infringement. If you are
> looking for a library, which can be installed and
Quotig OpenAPTX Github README :
"This project is for research purposes only. Without a proper license private
and commercial usage might be a case of a patent infringement. If you are
looking for a library, which can be installed and used legally (commercial,
private and educational usage), go
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