quartz: Make the video renderer drop preroll samples.

458b09a8 · Maarten Lankhorst · Alexandre Julliard · 7ca4a034 · 458b09a8
Commit 458b09a8 authored Apr 17, 2008 by Maarten Lankhorst Committed by Alexandre Julliard Apr 21, 2008
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videorenderer.c dlls/quartz/videorenderer.c +4 -0

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--- a/dlls/quartz/videorenderer.c
+++ b/dlls/quartz/videorenderer.c
@@ -362,6 +362,10 @@ static HRESULT VideoRenderer_Sample(LPVOID iface, IMediaSample * pSample)

    TRACE("%p %p\n", iface, pSample);

+    /* Preroll means the sample isn't shown, this is used for key frames and things like that */
+    if (IMediaSample_IsPreroll(pSample) == S_OK)
+        return S_OK;
+
    hr = IMediaSample_GetPointer(pSample, &pbSrcStream);
    if (FAILED(hr))
    {