Quelle  0020.patch   Sprache: unbekannt

From: Alex Chronopoulos <achronop@gmail.com>
Date: Wed, 18 Sep 2019 13:12:00 +0000
Subject: Bug 1572281 - Remove audio device change notifications from video
 capture in Windows. r=dminor

Video capture used to provide device change notifications for audio and video devices. From now on, CubebDeviceEnumerator will provide audio device change notifications thus video capture is updated to notify only changes of the video device. This is the windows part.

Differential Revision: https://phabricator.services.mozilla.com/D46274
Mercurial Revision: https://hg.mozilla.org/mozilla-central/rev/a5c23245837ebdd99532e8bfaca05774c5c96d9d
---
 modules/video_capture/windows/device_info_ds.cc | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/modules/video_capture/windows/device_info_ds.cc b/modules/video_capture/windows/device_info_ds.cc
index a7eca19bbf..9d22f42f4d 100644
--- a/modules/video_capture/windows/device_info_ds.cc
+++ b/modules/video_capture/windows/device_info_ds.cc
@@ -20,7 +20,7 @@
 namespace webrtc {
 namespace videocapturemodule {
 
-BOOL isCaptureDevice(DEV_BROADCAST_HDR *pHdr)
+BOOL isVideoDevice(DEV_BROADCAST_HDR *pHdr)
 {
   if (pHdr == NULL) {
     return FALSE;
@@ -29,7 +29,7 @@ BOOL isCaptureDevice(DEV_BROADCAST_HDR *pHdr)
     return FALSE;
   }
   DEV_BROADCAST_DEVICEINTERFACE* pDi = (DEV_BROADCAST_DEVICEINTERFACE*)pHdr;
-  return pDi->dbcc_classguid == KSCATEGORY_CAPTURE;
+  return pDi->dbcc_classguid == KSCATEGORY_VIDEO_CAMERA;
 }
 
 LRESULT CALLBACK WndProc(HWND hWnd, UINT uiMsg, WPARAM wParam, LPARAM lParam)
@@ -47,7 +47,7 @@ LRESULT CALLBACK WndProc(HWND hWnd, UINT uiMsg, WPARAM wParam, LPARAM lParam)
     else if (uiMsg == WM_DEVICECHANGE)
     {
         pParent = (DeviceInfoDS*)GetWindowLongPtr(hWnd, GWLP_USERDATA);
-        if (pParent && isCaptureDevice((PDEV_BROADCAST_HDR)lParam))
+        if (pParent && isVideoDevice((PDEV_BROADCAST_HDR)lParam))
         {
             pParent->DeviceChange();
         }
@@ -128,7 +128,7 @@ DeviceInfoDS::DeviceInfoDS()
     DEV_BROADCAST_DEVICEINTERFACE di = { 0 };
     di.dbcc_size = sizeof(di);
     di.dbcc_devicetype  = DBT_DEVTYP_DEVICEINTERFACE;
-    di.dbcc_classguid  = KSCATEGORY_CAPTURE;
+    di.dbcc_classguid  = KSCATEGORY_VIDEO_CAMERA;
 
     _hdevnotify = RegisterDeviceNotification(_hwnd, &di,
                                              DEVICE_NOTIFY_WINDOW_HANDLE);