1 files changed, 12 insertions, 0 deletions
diff --git a/video/decode/d3d.c b/video/decode/d3d.c
index 59d2a81664..5c65da469f 100644
--- a/video/decode/d3d.c
+++ b/video/decode/d3d.c
@@ -266,3 +266,15 @@ void copy_nv12(struct mp_image *dest, uint8_t *src_bits,
     buf.stride[1] = src_pitch;
     mp_image_copy_gpu(dest, &buf);
 }
+
+// Test if Direct3D11 can be used by us. Basically, this prevents trying to use
+// D3D11 on Win7, and then failing somewhere in the process.
+bool d3d11_check_decoding(ID3D11Device *dev)
+{
+    HRESULT hr;
+    // We assume that NV12 is always supported, if hw decoding is supported at
+    // all.
+    UINT supported = 0;
+    hr = ID3D11Device_CheckFormatSupport(dev, DXGI_FORMAT_NV12, &supported);
+    return !FAILED(hr) && (supported & D3D11_BIND_DECODER);
+}