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Diffstat (limited to 'src/ipa/ipu3/ipu3_agc.h')
-rw-r--r-- | src/ipa/ipu3/ipu3_agc.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/src/ipa/ipu3/ipu3_agc.h b/src/ipa/ipu3/ipu3_agc.h new file mode 100644 index 00000000..bfdf45d1 --- /dev/null +++ b/src/ipa/ipu3/ipu3_agc.h @@ -0,0 +1,62 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2021, Ideas On Board + * + * ipu3_agc.h - IPU3 AGC/AEC control algorithm + */ +#ifndef __LIBCAMERA_IPU3_AGC_H__ +#define __LIBCAMERA_IPU3_AGC_H__ + +#include <array> +#include <unordered_map> + +#include <linux/intel-ipu3.h> + +#include <libcamera/geometry.h> + +#include "libipa/algorithm.h" + +namespace libcamera { + +namespace ipa::ipu3 { + +class IPU3Agc : public Algorithm +{ +public: + IPU3Agc(); + ~IPU3Agc() = default; + + void initialise(struct ipu3_uapi_grid_config &bdsGrid); + void process(const ipu3_uapi_stats_3a *stats, uint32_t &exposure, uint32_t &gain); + bool converged() { return converged_; } + bool updateControls() { return updateControls_; } + /* \todo Use a metadata exchange between IPAs */ + double gamma() { return gamma_; } + +private: + void processBrightness(const ipu3_uapi_stats_3a *stats); + void filterExposure(); + void lockExposureGain(uint32_t &exposure, uint32_t &gain); + + struct ipu3_uapi_grid_config aeGrid_; + + uint64_t frameCount_; + uint64_t lastFrame_; + + bool converged_; + bool updateControls_; + + double iqMean_; + double gamma_; + + double prevExposure_; + double prevExposureNoDg_; + double currentExposure_; + double currentExposureNoDg_; +}; + +} /* namespace ipa::ipu3 */ + +} /* namespace libcamera */ + +#endif /* __LIBCAMERA_IPU3_AGC_H__ */ |