From 7f0a20ad066020d913faff636b8a0c5f61d2dfe0 Mon Sep 17 00:00:00 2001 From: Michael Brasser Date: Sat, 22 Feb 2020 15:50:40 -0600 Subject: Document usage of QT_MULTIMEDIA_PREFERRED_PLUGINS on Windows Task-number: QTBUG-82300 Change-Id: Ibbd960ef69b59e535af30ac10a238ddcf7634b66 Reviewed-by: Andy Shaw --- src/multimedia/doc/src/platform-notes-windows.qdoc | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/multimedia/doc/src/platform-notes-windows.qdoc b/src/multimedia/doc/src/platform-notes-windows.qdoc index e86d6a276..a69e96d99 100644 --- a/src/multimedia/doc/src/platform-notes-windows.qdoc +++ b/src/multimedia/doc/src/platform-notes-windows.qdoc @@ -42,6 +42,11 @@ was introduced in Windows Vista as a replacement for DirectShow and other multimedia APIs. Consequently, WMF plugin in Qt is supported only for Windows Vista and later versions of the operating system. +The environment variable \c QT_MULTIMEDIA_PREFERRED_PLUGINS can be used to +control the priority of the plugins. For example, setting it to +"windowsmediafoundation" or "directshow" will cause the corresponding plugin +to be the preferred one. + \section1 Limitations The WMF plugin in Qt does not currently provide a camera backend. Instead, -- cgit v1.2.3