b9369a0e60
Add a default constructor that initializes a non valid CameraMetadata to allow embedding instances of the class in other types. Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
122 lines
2.6 KiB
C++
122 lines
2.6 KiB
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2019, Google Inc.
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*
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* camera_metadata.cpp - libcamera Android Camera Metadata Helper
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*/
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#include "camera_metadata.h"
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#include "libcamera/internal/log.h"
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using namespace libcamera;
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LOG_DEFINE_CATEGORY(CameraMetadata)
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CameraMetadata::CameraMetadata()
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: metadata_(nullptr), valid_(false)
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{
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}
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CameraMetadata::CameraMetadata(size_t entryCapacity, size_t dataCapacity)
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{
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metadata_ = allocate_camera_metadata(entryCapacity, dataCapacity);
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valid_ = metadata_ != nullptr;
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}
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CameraMetadata::CameraMetadata(const camera_metadata_t *metadata)
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{
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metadata_ = clone_camera_metadata(metadata);
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valid_ = metadata_ != nullptr;
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}
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CameraMetadata::CameraMetadata(const CameraMetadata &other)
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: CameraMetadata(other.get())
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{
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}
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CameraMetadata::~CameraMetadata()
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{
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if (metadata_)
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free_camera_metadata(metadata_);
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}
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CameraMetadata &CameraMetadata::operator=(const CameraMetadata &other)
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{
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if (this == &other)
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return *this;
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if (metadata_)
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free_camera_metadata(metadata_);
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metadata_ = clone_camera_metadata(other.get());
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valid_ = metadata_ != nullptr;
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return *this;
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}
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bool CameraMetadata::getEntry(uint32_t tag, camera_metadata_ro_entry_t *entry) const
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{
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if (find_camera_metadata_ro_entry(metadata_, tag, entry))
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return false;
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return true;
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}
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bool CameraMetadata::addEntry(uint32_t tag, const void *data, size_t count)
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{
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if (!valid_)
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return false;
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if (!add_camera_metadata_entry(metadata_, tag, data, count))
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return true;
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const char *name = get_camera_metadata_tag_name(tag);
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if (name)
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LOG(CameraMetadata, Error)
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<< "Failed to add tag " << name;
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else
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LOG(CameraMetadata, Error)
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<< "Failed to add unknown tag " << tag;
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valid_ = false;
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return false;
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}
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bool CameraMetadata::updateEntry(uint32_t tag, const void *data, size_t count)
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{
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if (!valid_)
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return false;
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camera_metadata_entry_t entry;
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int ret = find_camera_metadata_entry(metadata_, tag, &entry);
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if (ret) {
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const char *name = get_camera_metadata_tag_name(tag);
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LOG(CameraMetadata, Error)
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<< "Failed to update tag "
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<< (name ? name : "<unknown>") << ": not present";
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return false;
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}
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ret = update_camera_metadata_entry(metadata_, entry.index, data,
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count, nullptr);
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if (ret) {
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const char *name = get_camera_metadata_tag_name(tag);
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LOG(CameraMetadata, Error)
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<< "Failed to update tag " << (name ? name : "<unknown>");
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return false;
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}
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return true;
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}
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camera_metadata_t *CameraMetadata::get()
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{
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return valid_ ? metadata_ : nullptr;
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}
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const camera_metadata_t *CameraMetadata::get() const
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{
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return valid_ ? metadata_ : nullptr;
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}
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