mf/session: Handle MF_TOPONODE_DISABLE_PREROLL on sink nodes.

Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

mf/session: Handle MF_TOPONODE_DISABLE_PREROLL on sink nodes.
4634fd4c · Nikolay Sivov · Alexandre Julliard · d614d048 · 4634fd4c
Commit 4634fd4c authored Mar 29, 2021 by Nikolay Sivov Committed by Alexandre Julliard Mar 29, 2021
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session.c dlls/mf/session.c +3 -1

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--- a/dlls/mf/session.c
+++ b/dlls/mf/session.c
@@ -1232,6 +1232,7 @@ static DWORD session_get_object_rate_caps(IUnknown *object)
 static HRESULT session_add_media_sink(struct media_session *session, IMFTopologyNode *node, IMFMediaSink *sink)
 {
    struct media_sink *media_sink;
+    unsigned int disable_preroll = 0;
    DWORD flags;

    LIST_FOR_EACH_ENTRY(media_sink, &session->presentation.sinks, struct media_sink, entry)
@@ -1248,7 +1249,8 @@ static HRESULT session_add_media_sink(struct media_session *session, IMFTopology

    IMFMediaSink_QueryInterface(media_sink->sink, &IID_IMFMediaEventGenerator, (void **)&media_sink->event_generator);

-    if (SUCCEEDED(IMFMediaSink_GetCharacteristics(sink, &flags)) && flags & MEDIASINK_CAN_PREROLL)
+    IMFTopologyNode_GetUINT32(node, &MF_TOPONODE_DISABLE_PREROLL, &disable_preroll);
+    if (SUCCEEDED(IMFMediaSink_GetCharacteristics(sink, &flags)) && flags & MEDIASINK_CAN_PREROLL && !disable_preroll)
    {
        if (SUCCEEDED(IMFMediaSink_QueryInterface(media_sink->sink, &IID_IMFMediaSinkPreroll, (void **)&media_sink->preroll)))
            session->presentation.flags |= SESSION_FLAG_NEEDS_PREROLL;