Changeset 88861 in vbox for trunk/include/VBox

Timestamp:

May 4, 2021 4:00:36 PM (4 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

144195

Message:

DrvAudio,DrvHostAudioWasApi: Implemented the smoother default device changing. Added a PDMIHOSTAUDIOPORT::pfnStreamNotifyPreparingDeviceSwitch to explicitly tell DrvAudio about PDMAUDIOSTREAM_STS_PREPARING_SWITCH being set, rather than polling for it in the play function. Fixed a cache purge at power-off race in the destructor (WasApi). bugref:9890

File:

• trunk/include/VBox/vmm/pdmaudioifs.h (modified) (2 diffs)

trunk/include/VBox/vmm/pdmaudioifs.h

@@ -1551 +1551 @@
 
     /**
+     * Notification that the stream is about to change device in a bit.
+     *
+     * This will assume PDMAUDIOSTREAM_STS_PREPARING_SWITCH will be set when
+     * PDMIHOSTAUDIO::pfnStreamGetStatus is next called and change the stream state
+     * accordingly.
+     *
+     * @param   pInterface  Pointer to this interface.
+     * @param   pStream     The stream that changed device (backend variant).
+     */
+    DECLR3CALLBACKMEMBER(void, pfnStreamNotifyPreparingDeviceSwitch,(PPDMIHOSTAUDIOPORT pInterface,
+                                                                     PPDMAUDIOBACKENDSTREAM pStream));
+
+    /**
      * The stream has changed its device and left the
-     * PDMAUDIOSTREAM_STS_PREPARING_SWITCH state.
+     * PDMAUDIOSTREAM_STS_PREPARING_SWITCH state (if it entered it at all).
      *
      * @param   pInterface  Pointer to this interface.
@@ -1576 +1589 @@
 
 /** PDMIHOSTAUDIOPORT interface ID. */
-#define PDMIHOSTAUDIOPORT_IID                    "4d513a11-5be1-4f6f-9a06-a2f628cf67ac"
+#define PDMIHOSTAUDIOPORT_IID                    "1aa566e2-b3df-4b8a-9f80-99bdcb5e9964"
 
 /** @} */