[PATCH BlueZ] audio/transport: Emit Volume changed if endpoint is source

[PATCH BlueZ] audio/transport: Emit Volume changed if endpoint is source

[Feryllt Pryderi]

Change set_volume to send a Volume PropertyChanged signal also if
transport->sink_watch is set (and not only if source_watch is set).

This fixes volume changes signals not being sent for devices like speakers and
headphone adapters with volume control (like Bose Soundlink Revolve or Fiio BTR5).
---
 profiles/audio/transport.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/profiles/audio/transport.c b/profiles/audio/transport.c
index 8248014ae..26aa237a3 100644
--- a/profiles/audio/transport.c
+++ b/profiles/audio/transport.c
@@ -662,6 +662,7 @@ static void set_volume(const GDBusPropertyTable *property,
     a2dp->volume = volume;
 
     notify = transport->source_watch ? true : false;
+    notify = notify || (transport->sink_watch ? true : false);
     if (notify)
         g_dbus_emit_property_changed(btd_get_dbus_connection(),
                         transport->path,
-- 
2.31.0

Re: [PATCH BlueZ] audio/transport: Emit Volume changed if endpoint is source

[Luiz Augusto von Dentz]

Hi Feryllt,

On Wed, Mar 31, 2021 at 4:40 AM Feryllt Pryderi <feryllt@gmail.com> wrote:
>
> Change set_volume to send a Volume PropertyChanged signal also if
> transport->sink_watch is set (and not only if source_watch is set).
>
> This fixes volume changes signals not being sent for devices like speakers and
> headphone adapters with volume control (like Bose Soundlink Revolve or Fiio BTR5).
> ---
>  profiles/audio/transport.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/profiles/audio/transport.c b/profiles/audio/transport.c
> index 8248014ae..26aa237a3 100644
> --- a/profiles/audio/transport.c
> +++ b/profiles/audio/transport.c
> @@ -662,6 +662,7 @@ static void set_volume(const GDBusPropertyTable *property,
>      a2dp->volume = volume;
>
>      notify = transport->source_watch ? true : false;
> +    notify = notify || (transport->sink_watch ? true : false);

Id replace the following like with:

  if (transport->source_watch || transport->sink_watch)

>      if (notify)
>          g_dbus_emit_property_changed(btd_get_dbus_connection(),
>                          transport->path,
> --
> 2.31.0
>


-- 
Luiz Augusto von Dentz

Re: [PATCH BlueZ] audio/transport: Emit Volume changed if endpoint is source

[Feryllt Pryderi]

Hi Luiz,

sure I can update the patch, but is the if at all needed? Can we have transports without any of source_watch and sink_watch?

On 3/31/21 8:33 PM, Luiz Augusto von Dentz wrote:
> Hi Feryllt,
>
> On Wed, Mar 31, 2021 at 4:40 AM Feryllt Pryderi <feryllt@gmail.com> wrote:
>> Change set_volume to send a Volume PropertyChanged signal also if
>> transport->sink_watch is set (and not only if source_watch is set).
>>
>> This fixes volume changes signals not being sent for devices like speakers and
>> headphone adapters with volume control (like Bose Soundlink Revolve or Fiio BTR5).
>> ---
>>  profiles/audio/transport.c | 1 +
>>  1 file changed, 1 insertion(+)
>>
>> diff --git a/profiles/audio/transport.c b/profiles/audio/transport.c
>> index 8248014ae..26aa237a3 100644
>> --- a/profiles/audio/transport.c
>> +++ b/profiles/audio/transport.c
>> @@ -662,6 +662,7 @@ static void set_volume(const GDBusPropertyTable *property,
>>      a2dp->volume = volume;
>>
>>      notify = transport->source_watch ? true : false;
>> +    notify = notify || (transport->sink_watch ? true : false);
> Id replace the following like with:
>
>   if (transport->source_watch || transport->sink_watch)
>
>>      if (notify)
>>          g_dbus_emit_property_changed(btd_get_dbus_connection(),
>>                          transport->path,
>> --
>> 2.31.0
>>
>

Re: [PATCH BlueZ] audio/transport: Emit Volume changed if endpoint is source

[Luiz Augusto von Dentz]

Hi Feryllt,

On Wed, Mar 31, 2021 at 1:01 PM Feryllt Pryderi <feryllt@gmail.com> wrote:
>
> Hi Luiz,
>
> sure I can update the patch, but is the if at all needed? Can we have transports without any of source_watch and sink_watch?

Right, I was about to do the change myself but you have a good point,
if we will be emitting for both then we should just signal regardless.
That said when acting as a source (notify=false) we would be sense the
command AVRCP_SET_ABSOLUTE_VOLUME which the remote shall generate an
event AVRCP_EVENT_VOLUME_CHANGED which will then generate the signal
at media_transport_update_volume, so something is off here, are you
really not getting any signal?

> On 3/31/21 8:33 PM, Luiz Augusto von Dentz wrote:
> > Hi Feryllt,
> >
> > On Wed, Mar 31, 2021 at 4:40 AM Feryllt Pryderi <feryllt@gmail.com> wrote:
> >> Change set_volume to send a Volume PropertyChanged signal also if
> >> transport->sink_watch is set (and not only if source_watch is set).
> >>
> >> This fixes volume changes signals not being sent for devices like speakers and
> >> headphone adapters with volume control (like Bose Soundlink Revolve or Fiio BTR5).
> >> ---
> >>  profiles/audio/transport.c | 1 +
> >>  1 file changed, 1 insertion(+)
> >>
> >> diff --git a/profiles/audio/transport.c b/profiles/audio/transport.c
> >> index 8248014ae..26aa237a3 100644
> >> --- a/profiles/audio/transport.c
> >> +++ b/profiles/audio/transport.c
> >> @@ -662,6 +662,7 @@ static void set_volume(const GDBusPropertyTable *property,
> >>      a2dp->volume = volume;
> >>
> >>      notify = transport->source_watch ? true : false;
> >> +    notify = notify || (transport->sink_watch ? true : false);
> > Id replace the following like with:
> >
> >   if (transport->source_watch || transport->sink_watch)
> >
> >>      if (notify)
> >>          g_dbus_emit_property_changed(btd_get_dbus_connection(),
> >>                          transport->path,
> >> --
> >> 2.31.0
> >>
> >



-- 
Luiz Augusto von Dentz