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wasapi: fix reinit of audioclient in prepare()

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When the sink goes from PLAYING to READY and then back to PLAYING,
the initialization of the audioclient in prepare() fails with the
error AUDCLNT_E_ALREADY_INITIALIZED. As a result, the playback
stops.

To fix this, we need to drop the AudioClient in unprepare() and
grab a new one in prepare() to be able to initialize it again
with the new buffer spec.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2096>
This commit is contained in:
Jakub Janků 2021-03-18 10:55:58 +01:00 committed by Jakub Janků
parent 766a126380
commit 211f968981
1 changed files with 9 additions and 1 deletions
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10
sys/wasapi/gstwasapisink.c
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@ -487,6 +487,13 @@ gst_wasapi_sink_prepare (GstAudioSink * asink, GstAudioRingBufferSpec * spec)
CoInitializeEx (NULL, COINIT_MULTITHREADED); CoInitializeEx (NULL, COINIT_MULTITHREADED);
if (!self->client) {
GST_DEBUG_OBJECT (self, "no IAudioClient, creating a new one");
if (!gst_wasapi_util_get_audio_client (GST_ELEMENT (self),
self->device, &self->client))
goto beach;
}
if (gst_wasapi_sink_can_audioclient3 (self)) { if (gst_wasapi_sink_can_audioclient3 (self)) {
if (!gst_wasapi_util_initialize_audioclient3 (GST_ELEMENT (self), spec, if (!gst_wasapi_util_initialize_audioclient3 (GST_ELEMENT (self), spec,
(IAudioClient3 *) self->client, self->mix_format, self->low_latency, (IAudioClient3 *) self->client, self->mix_format, self->low_latency,
@ -592,7 +599,8 @@ gst_wasapi_sink_unprepare (GstAudioSink * asink)
GstWasapiSink *self = GST_WASAPI_SINK (asink); GstWasapiSink *self = GST_WASAPI_SINK (asink);
if (self->client != NULL) { if (self->client != NULL) {
IAudioClient_Stop (self->client); IUnknown_Release (self->client);
self->client = NULL;
} }
if (self->render_client != NULL) { if (self->render_client != NULL) {