Add DRM renderer for Rockchip devices

app/streaming/video/ffmpeg-renderers/drm.h

@@ -0,0 +1,24 @@
+#pragma once
+
+#include "renderer.h"
+
+#include <xf86drm.h>
+#include <xf86drmMode.h>
+
+class DrmRenderer : public IFFmpegRenderer {
+public:
+    DrmRenderer();
+    virtual ~DrmRenderer() override;
+    virtual bool initialize(PDECODER_PARAMETERS params) override;
+    virtual bool prepareDecoderContext(AVCodecContext* context) override;
+    virtual void renderFrame(AVFrame* frame) override;
+    virtual enum AVPixelFormat getPreferredPixelFormat(int videoFormat) override;
+
+private:
+    int m_DrmFd;
+    uint32_t m_CrtcId;
+    uint32_t m_PlaneId;
+    uint32_t m_CurrentFbId;
+    SDL_Rect m_OutputRect;
+};
+