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99 lines
2.5 KiB
C++
99 lines
2.5 KiB
C++
#pragma once
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// Utils includes
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#include <utils/ColorBgr.h>
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#include <utils/ColorRgba.h>
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#include <hyperion/Grabber.h>
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#include <grabber/framebuffer/FramebufferFrameGrabber.h>
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///
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///
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class AmlogicGrabber : public Grabber
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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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///
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AmlogicGrabber();
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~AmlogicGrabber() override;
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///
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/// @brief Setup a new capture screen, will free the previous one
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/// @return True on success, false if no screen is found
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///
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bool setupScreen();
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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<ColorRgb> & image);
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///
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/// @brief Discover AmLogic screens available (for configuration).
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///
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/// @param[in] params Parameters used to overwrite discovery default behaviour
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///
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/// @return A JSON structure holding a list of devices found
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///
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QJsonObject discover(const QJsonObject& params);
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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(VideoMode mode) override;
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///
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/// @brief Apply new crop values, on errors reject the values
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///
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void setCropping(int cropLeft, int cropRight, int cropTop, int cropBottom) override;
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///
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/// @brief Apply new width/height values, on errors (collide with cropping) reject the values
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/// @return True on success else false
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///
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bool setWidthHeight(int width, int height) override;
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///
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/// @brief Apply new framerate
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/// @param fps framesPerSecond
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///
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bool setFramerate(int fps) override;
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///
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/// @brief Apply new pixelDecimation
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///
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bool setPixelDecimation(int pixelDecimation) override;
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private:
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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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void closeDevice(int &fd);
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bool openDevice(int &fd, const char* dev);
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int grabFrame_amvideocap(Image<ColorRgb> & image);
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/** The snapshot/capture device of the amlogic video chip */
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int _captureDev;
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int _videoDev;
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Image<ColorBgr> _image_bgr;
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void* _image_ptr;
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ssize_t _bytesToRead;
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int _lastError;
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bool _videoPlaying;
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FramebufferFrameGrabber _fbGrabber;
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int _grabbingModeNotification;
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};
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