[PATCH v4 1/2] mf: Retry PROCESSINPUTNOTIFY if TRANSFORM_TYPE_NOT_SET is returned.

[Brendan McGrath]

From: Brendan McGrath

Send INVALIDATEMEDIATYPE to allow the transform type to be set before
retrying PROCESSINPUTNOTIFY.
---
 dlls/mf/evr.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/dlls/mf/evr.c b/dlls/mf/evr.c
index db7053a1405..a13c2d7e89b 100644
--- a/dlls/mf/evr.c
+++ b/dlls/mf/evr.c
@@ -416,7 +416,10 @@ static HRESULT WINAPI video_stream_sink_ProcessSample(IMFStreamSink *iface, IMFS
         }

if (SUCCEEDED(IMFTransform_ProcessInput(stream->parent->mixer, stream->id, sample, 0)))
-            IMFVideoPresenter_ProcessMessage(stream->parent->presenter, MFVP_MESSAGE_PROCESSINPUTNOTIFY, 0);
+        {
+            while (hr == S_OK && (hr = IMFVideoPresenter_ProcessMessage(stream->parent->presenter, MFVP_MESSAGE_PROCESSINPUTNOTIFY, 0)) == MF_E_TRANSFORM_TYPE_NOT_SET)
+                hr = IMFVideoPresenter_ProcessMessage(stream->parent->presenter, MFVP_MESSAGE_INVALIDATEMEDIATYPE, 0);
+        }

if (stream->flags & EVR_STREAM_PREROLLING)
         {