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59 lines
1.5 KiB
C++
59 lines
1.5 KiB
C++
#pragma once
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// STL includes
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#include <cstdint>
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// Utils includes
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#include <utils/Image.h>
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#include <utils/ColorBgr.h>
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#include <utils/VideoMode.h>
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///
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/// The DispmanxFrameGrabber is used for creating snapshots of the display (screenshots) with a
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/// downsized and scaled resolution.
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///
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class AmlogicGrabber
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{
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public:
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///
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/// Construct a AmlogicGrabber that will capture snapshots with specified dimensions.
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///
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/// @param[in] width The width of the captured screenshot
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/// @param[in] height The heigth of the captured screenshot
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///
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AmlogicGrabber(const unsigned width, const unsigned height);
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~AmlogicGrabber();
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///
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/// Set the video mode (2D/3D)
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/// @param[in] mode The new video mode
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///
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void setVideoMode(const VideoMode videoMode);
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///
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/// Captures a single snapshot of the display and writes the data to the given image. The
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/// provided image should have the same dimensions as the configured values (_width and
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/// _height)
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///
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/// @param[out] image The snapped screenshot (should be initialized with correct width and
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/// height)
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/// @return Zero on success else negative
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///
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int grabFrame(Image<ColorBgr> & image);
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/**
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* Returns true if video is playing over the amlogic chip
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* @return True if video is playing else false
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*/
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bool isVideoPlaying();
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private:
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/// With of the captured snapshot [pixels]
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const unsigned _width;
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/// Height of the captured snapshot [pixels]
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const unsigned _height;
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/** The snapshot/capture device of the amlogic video chip */
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int _amlogicCaptureDev;
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};
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