Nikolay Sivov : evr/filter: Notify mixer and presenter on state changes.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 50cd67d06968029e7c4c2c7ac79f1535154f9c03
URL:    https://gitlab.winehq.org/wine/wine/-/commit/50cd67d06968029e7c4c2c7ac79f153...

Author: Nikolay Sivov 
Date:   Mon Sep  5 12:25:20 2022 +0300

evr/filter: Notify mixer and presenter on state changes.

Signed-off-by: Nikolay Sivov

---

dlls/evr/evr.c | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/dlls/evr/evr.c b/dlls/evr/evr.c
index 1b2930c500a..67b13cbd5af 100644
--- a/dlls/evr/evr.c
+++ b/dlls/evr/evr.c
@@ -312,6 +312,38 @@ static HRESULT evr_query_accept(struct strmbase_renderer *iface, const AM_MEDIA_
     return hr;
 }

+/* FIXME: errors should be propagated from init/start/stop handlers. */
+static void evr_init_stream(struct strmbase_renderer *iface)
+{
+    struct evr *filter = impl_from_strmbase_renderer(iface);
+
+    if (!filter->mixer) return;
+
+    if (SUCCEEDED(IMFTransform_ProcessMessage(filter->mixer, MFT_MESSAGE_NOTIFY_BEGIN_STREAMING, 0)))
+        IMFVideoPresenter_ProcessMessage(filter->presenter, MFVP_MESSAGE_BEGINSTREAMING, 0);
+}
+
+static void evr_start_stream(struct strmbase_renderer *iface)
+{
+    struct evr *filter = impl_from_strmbase_renderer(iface);
+
+    if (filter->mixer)
+        IMFTransform_ProcessMessage(filter->mixer, MFT_MESSAGE_NOTIFY_START_OF_STREAM, 0);
+}
+
+static void evr_stop_stream(struct strmbase_renderer *iface)
+{
+    struct evr *filter = impl_from_strmbase_renderer(iface);
+
+    if (!filter->mixer) return;
+
+    if (SUCCEEDED(IMFTransform_ProcessMessage(filter->mixer, MFT_MESSAGE_NOTIFY_END_OF_STREAM, 0)))
+    {
+        if (SUCCEEDED(IMFVideoPresenter_ProcessMessage(filter->presenter, MFVP_MESSAGE_ENDSTREAMING, 0)))
+            IMFTransform_ProcessMessage(filter->mixer, MFT_MESSAGE_NOTIFY_END_STREAMING, 0);
+    }
+}
+
 static const struct strmbase_renderer_ops renderer_ops =
 {
     .renderer_query_accept = evr_query_accept,
@@ -320,6 +352,9 @@ static const struct strmbase_renderer_ops renderer_ops =
     .renderer_connect = evr_connect,
     .renderer_disconnect = evr_disconnect,
     .renderer_destroy = evr_destroy,
+    .renderer_init_stream = evr_init_stream,
+    .renderer_start_stream = evr_start_stream,
+    .renderer_stop_stream = evr_stop_stream,
 };

static struct evr *impl_from_IEVRFilterConfig(IEVRFilterConfig *iface)