[PATCH v4 02/11] mf: Validate sample copier ProcessOutput count parameter.

[Rémi Bernon]

From: Rémi Bernon

---
 dlls/mf/copier.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dlls/mf/copier.c b/dlls/mf/copier.c
index ab995fb98db..816bed6388e 100644
--- a/dlls/mf/copier.c
+++ b/dlls/mf/copier.c
@@ -494,6 +494,9 @@ static HRESULT WINAPI sample_copier_transform_ProcessOutput(IMFTransform *iface,

TRACE("%p, %#lx, %lu, %p, %p.\n", iface, flags, count, buffers, status);

+    if (count != 1)
+        return E_INVALIDARG;
+
     EnterCriticalSection(&transform->cs);
     if (!(transform->flags & SAMPLE_COPIER_OUTPUT_TYPE_SET))
         hr = MF_E_TRANSFORM_TYPE_NOT_SET;