[PATCH v2 2/2] mfplat: Seek byte stream to the start for URL hint detection.

[Rémi Bernon]

From: Rémi Bernon

---
 dlls/mfplat/main.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/dlls/mfplat/main.c b/dlls/mfplat/main.c
index aa987ff0496..4ed607686f1 100644
--- a/dlls/mfplat/main.c
+++ b/dlls/mfplat/main.c
@@ -6257,10 +6257,9 @@ static HRESULT resolver_get_bytestream_url_hint(IMFByteStream *stream, WCHAR con

if (FAILED(hr = IMFByteStream_GetCurrentPosition(stream, &position)))
         return hr;
-
-    hr = IMFByteStream_Read(stream, buffer, sizeof(buffer), &length);
-    IMFByteStream_SetCurrentPosition(stream, position);
-    if (FAILED(hr))
+    if (position && FAILED(hr = IMFByteStream_SetCurrentPosition(stream, 0)))
+        return hr;
+    if (FAILED(hr = IMFByteStream_Read(stream, buffer, sizeof(buffer), &length)))
         return hr;

if (length < sizeof(buffer))