diff options
| -rw-r--r-- | src/android/camera_capabilities.cpp | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/src/android/camera_capabilities.cpp b/src/android/camera_capabilities.cpp index 92525436..75888954 100644 --- a/src/android/camera_capabilities.cpp +++ b/src/android/camera_capabilities.cpp @@ -11,6 +11,7 @@ #include <array> #include <cmath> #include <map> +#include <type_traits> #include <hardware/camera3.h> @@ -125,6 +126,93 @@ hwLevelStrings = { { ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL_EXTERNAL, "EXTERNAL" }, }; +enum class ControlRange { + Min, + Def, + Max, +}; + +/** + * \brief Set Android metadata from libcamera ControlInfo or a default value + * \tparam T Type of the control in libcamera + * \tparam U Type of the metadata in Android + * \param[in] metadata Android metadata pack to add the control value to + * \param[in] tag Android metadata tag + * \param[in] controlsInfo libcamera ControlInfoMap from which to find the control info + * \param[in] control libcamera ControlId to find from \a controlsInfo + * \param[in] controlRange Whether to use the min, def, or max value from the control info + * \param[in] defaultValue The value to set in \a metadata if \a control is not found + * + * Set the Android metadata entry in \a metadata with tag \a tag based on the + * control info found for the libcamera control \a control in the libcamera + * ControlInfoMap \a controlsInfo. If no libcamera ControlInfo is found, then + * the Android metadata entry is set to \a defaultValue. + * + * This function is for scalar values. + */ +template<typename T, typename U> +U setMetadata(CameraMetadata *metadata, uint32_t tag, + const ControlInfoMap &controlsInfo, const Control<T> &control, + enum ControlRange controlRange, const U defaultValue) +{ + U value = defaultValue; + + const auto &info = controlsInfo.find(&control); + if (info != controlsInfo.end()) { + switch (controlRange) { + case ControlRange::Min: + value = static_cast<U>(info->second.min().template get<T>()); + break; + case ControlRange::Def: + value = static_cast<U>(info->second.def().template get<T>()); + break; + case ControlRange::Max: + value = static_cast<U>(info->second.max().template get<T>()); + break; + } + } + + metadata->addEntry(tag, value); + return value; +} + +/** + * \brief Set Android metadata from libcamera ControlInfo or a default value + * \tparam T Type of the control in libcamera + * \tparam U Type of the metadata in Android + * \param[in] metadata Android metadata pack to add the control value to + * \param[in] tag Android metadata tag + * \param[in] controlsInfo libcamera ControlInfoMap from which to find the control info + * \param[in] control libcamera ControlId to find from \a controlsInfo + * \param[in] defaultVector The value to set in \a metadata if \a control is not found + * + * Set the Android metadata entry in \a metadata with tag \a tag based on the + * control info found for the libcamera control \a control in the libcamera + * ControlInfoMap \a controlsInfo. If no libcamera ControlInfo is found, then + * the Android metadata entry is set to \a defaultVector. + * + * This function is for vector values. + */ +template<typename T, typename U> +std::vector<U> setMetadata(CameraMetadata *metadata, uint32_t tag, + const ControlInfoMap &controlsInfo, + const Control<T> &control, + const std::vector<U> &defaultVector) +{ + const auto &info = controlsInfo.find(&control); + if (info == controlsInfo.end()) { + metadata->addEntry(tag, defaultVector); + return defaultVector; + } + + std::vector<U> values(info->second.values().size()); + for (const auto &value : info->second.values()) + values.push_back(static_cast<U>(value.template get<T>())); + metadata->addEntry(tag, values); + + return values; +} + } /* namespace */ bool CameraCapabilities::validateManualSensorCapability() |