1 files changed, 131 insertions, 0 deletions
diff --git a/audio/SoundWire/Samples/SdcaVad/SdcaVCodec/streamengine.h b/audio/SoundWire/Samples/SdcaVad/SdcaVCodec/streamengine.h
new file mode 100644
index 00000000..906e21f3
--- /dev/null
+++ b/audio/SoundWire/Samples/SdcaVad/SdcaVCodec/streamengine.h
@@ -0,0 +1,131 @@
+#pragma once
+
+#define HNSTIME_PER_MILLISECOND 10000
+
+class CStreamEngine
+{
+public:
+    virtual
+    __drv_maxIRQL(PASSIVE_LEVEL)
+    PAGED_CODE_SEG
+    NTSTATUS
+    PrepareHardware();
+
+    virtual
+    __drv_maxIRQL(PASSIVE_LEVEL)
+    PAGED_CODE_SEG
+    NTSTATUS
+    ReleaseHardware();
+
+    virtual
+    __drv_maxIRQL(PASSIVE_LEVEL)
+    PAGED_CODE_SEG
+    NTSTATUS
+    Run();
+
+    virtual
+    __drv_maxIRQL(PASSIVE_LEVEL)
+    PAGED_CODE_SEG
+    NTSTATUS
+    Pause();
+    
+    virtual
+    __drv_maxIRQL(PASSIVE_LEVEL)
+    PAGED_CODE_SEG
+    NTSTATUS
+    AssignDrmContentId(
+        _In_ ULONG          DrmContentId,
+        _In_ PACXDRMRIGHTS  DrmRights
+        );
+
+    virtual
+    __drv_maxIRQL(PASSIVE_LEVEL)
+    PAGED_CODE_SEG
+    NTSTATUS
+    GetHWLatency(
+        _Out_   ULONG         * FifoSize, 
+        _Out_   ULONG         * Delay
+        );
+
+    __drv_maxIRQL(PASSIVE_LEVEL)
+    PAGED_CODE_SEG
+    CStreamEngine(
+        _In_    ACXSTREAM       Stream, 
+        _In_    ACXDATAFORMAT   StreamFormat
+        );
+
+    __drv_maxIRQL(PASSIVE_LEVEL)
+    virtual
+    #pragma code_seg()
+    ~CStreamEngine();
+
+protected:
+    ACX_STREAM_STATE    m_CurrentState;
+    ACXSTREAM           m_Stream;
+    ACXDATAFORMAT       m_StreamFormat;
+    LARGE_INTEGER       m_PerformanceCounterFrequency;
+};
+
+class CRenderStreamEngine : public CStreamEngine
+{
+public:
+    __drv_maxIRQL(PASSIVE_LEVEL)
+    PAGED_CODE_SEG
+    CRenderStreamEngine(
+        _In_    ACXSTREAM       Stream,
+        _In_    ACXDATAFORMAT   StreamFormat
+        );
+
+    __drv_maxIRQL(PASSIVE_LEVEL)
+    PAGED_CODE_SEG
+    ~CRenderStreamEngine();
+
+    virtual
+    __drv_maxIRQL(PASSIVE_LEVEL)
+    PAGED_CODE_SEG
+    NTSTATUS
+    PrepareHardware();
+
+    virtual
+    __drv_maxIRQL(PASSIVE_LEVEL)
+    PAGED_CODE_SEG
+    NTSTATUS
+    ReleaseHardware();
+
+protected:
+    // data section.
+};
+
+class CCaptureStreamEngine : public CStreamEngine
+{
+public:
+    __drv_maxIRQL(PASSIVE_LEVEL)
+    PAGED_CODE_SEG
+    CCaptureStreamEngine(
+        _In_    ACXSTREAM       Stream,
+        _In_    ACXDATAFORMAT   StreamFormat
+        );
+
+    __drv_maxIRQL(PASSIVE_LEVEL)
+    PAGED_CODE_SEG
+    ~CCaptureStreamEngine();
+
+    virtual
+    __drv_maxIRQL(PASSIVE_LEVEL)
+    PAGED_CODE_SEG
+    NTSTATUS
+    PrepareHardware();
+
+    virtual
+    __drv_maxIRQL(PASSIVE_LEVEL)
+    PAGED_CODE_SEG
+    NTSTATUS
+    ReleaseHardware();
+
+protected:
+    __drv_maxIRQL(PASSIVE_LEVEL)
+    PAGED_CODE_SEG
+    NTSTATUS
+    ReadRegistrySettings();
+};
+