Rebuild FFmpeg 4.3.1, discord-rpc, Opus, and OpenSSL 1.1.1i for x86, x64, and ARM64

https://github.com/cgutman/moonlight-deps
382270e6c9a9c42addce06ef5dc6522b1368b5e2

libs/windows/include/libavutil/hwcontext_cuda.h

@@ -49,4 +49,21 @@ typedef struct AVCUDADeviceContext {
  * AVHWFramesContext.hwctx is currently not used
  */
 
+/**
+ * @defgroup hwcontext_cuda Device context creation flags
+ *
+ * Flags for av_hwdevice_ctx_create.
+ *
+ * @{
+ */
+
+/**
+ * Use primary device context instead of creating a new one.
+ */
+#define AV_CUDA_USE_PRIMARY_CONTEXT (1 << 0)
+
+/**
+ * @}
+ */
+
 #endif /* AVUTIL_HWCONTEXT_CUDA_H */