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source: rework volume handling

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- drop the 'virtual_' prefix from s->virtual_volume since we don't
  distuingish between reference and real volumes for sources

- introduce an accuracy for source volumes: if the hardware can control
  the volume "close enough" don't necessarily adjust the rest in
  software unless it is beyond a certain threshold. This should save a
  little bit of CPU at the expensive of a bit of accuracy in volume
  handling.

- other minor cleanups
This commit is contained in:
Lennart Poettering 2009-08-19 01:35:43 +02:00
parent 2838b78e59
commit 24e582808c
5 changed files with 57 additions and 39 deletions
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4
src/modules/bluetooth/module-bluetooth-device.c
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@ -1500,12 +1500,12 @@ static void source_set_volume_cb(pa_source *s) {
if (u->profile != PROFILE_HSP)
return;
gain = (pa_cvolume_max(&s->virtual_volume) * 15) / PA_VOLUME_NORM;
gain = (pa_cvolume_max(&s->volume) * 15) / PA_VOLUME_NORM;
if (gain > 15)
gain = 15;
pa_cvolume_set(&s->virtual_volume, u->sample_spec.channels, (pa_volume_t) (gain * PA_VOLUME_NORM / 15));
pa_cvolume_set(&s->volume, u->sample_spec.channels, (pa_volume_t) (gain * PA_VOLUME_NORM / 15));
pa_assert_se(m = dbus_message_new_method_call("org.bluez", u->path, "org.bluez.Headset", "SetMicrophoneGain"));
pa_assert_se(dbus_message_append_args(m, DBUS_TYPE_UINT16, &gain, DBUS_TYPE_INVALID));