[PATCH v2 1/1] mf: Only preroll when starting from stopped state.

[Yuxuan Shui]

From: Yuxuan Shui

Stream sink such as evr can't be prerolled a second time, and when we are
restarting from a paused state, those stream sink will already be prerolled
so don't preroll them again. Otherwise we will be waiting for Prerolled
events that will never come.
---
 dlls/mf/session.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/mf/session.c b/dlls/mf/session.c
index b5472569595..9074ad2de25 100644
--- a/dlls/mf/session.c
+++ b/dlls/mf/session.c
@@ -2979,7 +2979,7 @@ static void session_set_source_object_state(struct media_session *session, IUnkn
                 return;
             }

-            if (session->presentation.flags & SESSION_FLAG_NEEDS_PREROLL)
+            if ((session->presentation.flags & SESSION_FLAG_NEEDS_PREROLL) && session_is_output_nodes_state(session, OBJ_STATE_STOPPED))
             {
                 MFTIME preroll_time = 0;