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wasapi2: Ensure unmute when opening audio client

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ISimpleAudioVolume::SetMute() status seems to be preserved even
after process is terminated. In order to start audio client with
unmuted state, always disable mute when opening audio client.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1731>
This commit is contained in:
Seungha Yang 2020-10-30 02:21:11 +09:00 committed by GStreamer Merge Bot
parent 83e4310da1
commit be0df31b15
1 changed files with 14 additions and 0 deletions
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14
sys/wasapi2/gstwasapi2client.cpp
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@ -863,6 +863,11 @@ run_loop:
gst_wasapi2_client_stop (self);
if (self->audio_volume) {
/* this mute state seems to be global setting for this device
* Explicitly disable mute for later use of this audio device
* by other application. Otherwise users would blame GStreamer
* if we close audio device with muted state */
self->audio_volume->SetMute(FALSE, nullptr);
self->audio_volume->Release ();
self->audio_volume = NULL;
}
@ -1343,6 +1348,15 @@ gst_wasapi2_client_open (GstWasapi2Client * client, GstAudioRingBufferSpec * spe
client->audio_volume = audio_volume.Detach ();
/* this mute state seems to be global setting for this device
* but below documentation looks unclear why mute state is preserved
* even after process is terminated
* https://docs.microsoft.com/en-us/windows/win32/api/audioclient/nf-audioclient-isimpleaudiovolume-setmute
* Explicitly disable mute so that ensure we can produce or play audio
* regardless of previous status
*/
client->audio_volume->SetMute(FALSE, nullptr);
gst_audio_ring_buffer_set_channel_positions (buf, client->positions);
client->opened = TRUE;