VideoCore: Refactor syncing.

src/video_core/host1x/nvdec.h

@@ -0,0 +1,38 @@
+// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <memory>
+#include <vector>
+#include "common/common_types.h"
+#include "video_core/host1x/codecs/codec.h"
+
+namespace Tegra {
+class GPU;
+
+namespace Host1x {
+
+class Nvdec {
+public:
+    explicit Nvdec(GPU& gpu);
+    ~Nvdec();
+
+    /// Writes the method into the state, Invoke Execute() if encountered
+    void ProcessMethod(u32 method, u32 argument);
+
+    /// Return most recently decoded frame
+    [[nodiscard]] AVFramePtr GetFrame();
+
+private:
+    /// Invoke codec to decode a frame
+    void Execute();
+
+    GPU& gpu;
+    NvdecCommon::NvdecRegisters state;
+    std::unique_ptr<Codec> codec;
+};
+
+} // namespace Host1x
+
+} // namespace Tegra