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libcaemra-find (check picamera)
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// Copyright 2023 Ar-Ray-code. | |
// | |
// Licensed under the Apache License, Version 2.0 (the "License"); | |
// you may not use this file except in compliance with the License. | |
// You may obtain a copy of the License at | |
// | |
// http://www.apache.org/licenses/LICENSE-2.0 | |
// | |
// Unless required by applicable law or agreed to in writing, software | |
// distributed under the License is distributed on an "AS IS" BASIS, | |
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
// See the License for the specific language governing permissions and | |
// limitations under the License. | |
#include <iostream> | |
#include <libcamera/camera.h> | |
#include <libcamera/camera_manager.h> | |
#include <libcamera/control_ids.h> | |
#include <libcamera/property_ids.h> | |
#include <libcamera/transform.h> | |
using CameraManager = libcamera::CameraManager; | |
using Camera = libcamera::Camera; | |
std::unique_ptr<CameraManager> camera_manager_; | |
bool camera_is_connected() | |
{ | |
using namespace libcamera; | |
std::unique_ptr<CameraManager> cm = std::make_unique<CameraManager>(); | |
int ret = cm->start(); | |
if (ret) | |
{ | |
std::cout << "camera manager failed to start, code " << ret << std::endl; | |
return 1; | |
} | |
std::vector<std::shared_ptr<Camera>> cameras = cm->cameras(); | |
// Do not show USB webcams as these are not supported in libcamera-apps! | |
auto rem = std::remove_if(cameras.begin(), cameras.end(), | |
[](auto &cam) { return cam->id().find("/usb") != std::string::npos; }); | |
cameras.erase(rem, cameras.end()); | |
if (cameras.size() != 0) | |
{ | |
unsigned int idx = 0; | |
// print number of cameras | |
std::cout << "Number of cameras: " << cameras.size() << std::endl; | |
for (auto const &cam : cameras) | |
{ | |
cam->acquire(); | |
std::cout << idx++ << " : " << *cam->properties().get(libcamera::properties::Model); | |
auto area = cam->properties().get(properties::PixelArrayActiveAreas); | |
if (area) | |
std::cout << " [" << (*area)[0].size().toString() << "]"; | |
std::cout << " (" << cam->id() << ")" << std::endl; | |
std::unique_ptr<CameraConfiguration> config = cam->generateConfiguration({libcamera::StreamRole::Raw}); | |
if (!config) | |
{ | |
std::cout << "failed to generate capture configuration" << std::endl; | |
return 1; | |
} | |
cam->release(); | |
} | |
} | |
else | |
{ | |
std::cout << "No cameras available!" << std::endl; | |
return 1; | |
} | |
cameras.clear(); | |
cm->stop(); | |
return 0; | |
} | |
int main(void) | |
{ | |
return camera_is_connected(); | |
} |
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cmake_minimum_required(VERSION 3.6) | |
project(libcaemra-find) | |
set(CMAKE_CXX_STANDARD 17) | |
if(CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID MATCHES "Clang") | |
add_compile_options(-Wall -Wextra -Wpedantic) | |
endif() | |
add_definitions(-D_FILE_OFFSET_BITS=64) | |
find_package(PkgConfig REQUIRED) | |
pkg_check_modules(LIBCAMERA REQUIRED libcamera) | |
message(STATUS "libcamera library found:") | |
message(STATUS " version: ${LIBCAMERA_VERSION}") | |
message(STATUS " libraries: ${LIBCAMERA_LINK_LIBRARIES}") | |
message(STATUS " include path: ${LIBCAMERA_INCLUDE_DIRS}") | |
include_directories(include ${LIBCAMERA_INCLUDE_DIRS}) | |
set(TARGET libcaemra-find) | |
add_executable(${TARGET} 00-${TARGET}.cpp) | |
target_link_libraries(${TARGET} ${LIBCAMERA_LINK_LIBRARIES}) |
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Download : v0.0.3