// ------------------------- OpenPose C++ API Tutorial - Example 13 - Custom Input ------------------------- // Synchronous mode: ideal for production integration. It provides the fastest results with respect to runtime // performance. // In this function, the user can implement its own way to create frames (e.g., reading his own folder of images). // Third-party dependencies #include // Command-line user interface #define OPENPOSE_FLAGS_DISABLE_PRODUCER #include // OpenPose dependencies #include // Custom OpenPose flags // Producer DEFINE_string(image_dir, "examples/media/", "Process a directory of images. Read all standard formats (jpg, png, bmp, etc.)."); // This worker will just read and return all the basic image file formats in a directory class WUserInput : public op::WorkerProducer>>> { public: WUserInput(const std::string& directoryPath) : mImageFiles{op::getFilesOnDirectory(directoryPath, op::Extensions::Images)}, // For all basic image formats // If we want only e.g., "jpg" + "png" images // mImageFiles{op::getFilesOnDirectory(directoryPath, std::vector{"jpg", "png"})}, mCounter{0} { if (mImageFiles.empty()) op::error("No images found on: " + directoryPath, __LINE__, __FUNCTION__, __FILE__); } void initializationOnThread() {} std::shared_ptr>> workProducer() { try { // Close program when empty frame if (mImageFiles.size() <= mCounter) { op::opLog("Last frame read and added to queue. Closing program after it is processed.", op::Priority::High); // This function stops this worker, which will eventually stop the whole thread system once all the // frames have been processed this->stop(); return nullptr; } else { // Create new datum auto datumsPtr = std::make_shared>>(); datumsPtr->emplace_back(); auto& datumPtr = datumsPtr->at(0); datumPtr = std::make_shared(); // Fill datum const cv::Mat cvInputData = cv::imread(mImageFiles.at(mCounter++)); datumPtr->cvInputData = OP_CV2OPCONSTMAT(cvInputData); // If empty frame -> return nullptr if (datumPtr->cvInputData.empty()) { op::opLog("Empty frame detected on path: " + mImageFiles.at(mCounter-1) + ". Closing program.", op::Priority::High); this->stop(); datumsPtr = nullptr; } return datumsPtr; } } catch (const std::exception& e) { this->stop(); op::error(e.what(), __LINE__, __FUNCTION__, __FILE__); return nullptr; } } private: const std::vector mImageFiles; unsigned long long mCounter; }; void configureWrapper(op::Wrapper& opWrapper) { try { // Configuring OpenPose // logging_level op::checkBool( 0 <= FLAGS_logging_level && FLAGS_logging_level <= 255, "Wrong logging_level value.", __LINE__, __FUNCTION__, __FILE__); op::ConfigureLog::setPriorityThreshold((op::Priority)FLAGS_logging_level); op::Profiler::setDefaultX(FLAGS_profile_speed); // Applying user defined configuration - GFlags to program variables // outputSize const auto outputSize = op::flagsToPoint(op::String(FLAGS_output_resolution), "-1x-1"); // netInputSize const auto netInputSize = op::flagsToPoint(op::String(FLAGS_net_resolution), "-1x368"); // faceNetInputSize const auto faceNetInputSize = op::flagsToPoint(op::String(FLAGS_face_net_resolution), "368x368 (multiples of 16)"); // handNetInputSize const auto handNetInputSize = op::flagsToPoint(op::String(FLAGS_hand_net_resolution), "368x368 (multiples of 16)"); // poseMode const auto poseMode = op::flagsToPoseMode(FLAGS_body); // poseModel const auto poseModel = op::flagsToPoseModel(op::String(FLAGS_model_pose)); // JSON saving if (!FLAGS_write_keypoint.empty()) op::opLog( "Flag `write_keypoint` is deprecated and will eventually be removed. Please, use `write_json`" " instead.", op::Priority::Max); // keypointScaleMode const auto keypointScaleMode = op::flagsToScaleMode(FLAGS_keypoint_scale); // heatmaps to add const auto heatMapTypes = op::flagsToHeatMaps(FLAGS_heatmaps_add_parts, FLAGS_heatmaps_add_bkg, FLAGS_heatmaps_add_PAFs); const auto heatMapScaleMode = op::flagsToHeatMapScaleMode(FLAGS_heatmaps_scale); // >1 camera view? // const auto multipleView = (FLAGS_3d || FLAGS_3d_views > 1 || FLAGS_flir_camera); const auto multipleView = false; // Face and hand detectors const auto faceDetector = op::flagsToDetector(FLAGS_face_detector); const auto handDetector = op::flagsToDetector(FLAGS_hand_detector); // Enabling Google Logging const bool enableGoogleLogging = true; // Initializing the user custom classes // Frames producer (e.g., video, webcam, ...) auto wUserInput = std::make_shared(FLAGS_image_dir); // Add custom processing const auto workerInputOnNewThread = true; opWrapper.setWorker(op::WorkerType::Input, wUserInput, workerInputOnNewThread); // Pose configuration (use WrapperStructPose{} for default and recommended configuration) const op::WrapperStructPose wrapperStructPose{ poseMode, netInputSize, FLAGS_net_resolution_dynamic, outputSize, keypointScaleMode, FLAGS_num_gpu, FLAGS_num_gpu_start, FLAGS_scale_number, (float)FLAGS_scale_gap, op::flagsToRenderMode(FLAGS_render_pose, multipleView), poseModel, !FLAGS_disable_blending, (float)FLAGS_alpha_pose, (float)FLAGS_alpha_heatmap, FLAGS_part_to_show, op::String(FLAGS_model_folder), heatMapTypes, heatMapScaleMode, FLAGS_part_candidates, (float)FLAGS_render_threshold, FLAGS_number_people_max, FLAGS_maximize_positives, FLAGS_fps_max, op::String(FLAGS_prototxt_path), op::String(FLAGS_caffemodel_path), (float)FLAGS_upsampling_ratio, enableGoogleLogging}; opWrapper.configure(wrapperStructPose); // Face configuration (use op::WrapperStructFace{} to disable it) const op::WrapperStructFace wrapperStructFace{ FLAGS_face, faceDetector, faceNetInputSize, op::flagsToRenderMode(FLAGS_face_render, multipleView, FLAGS_render_pose), (float)FLAGS_face_alpha_pose, (float)FLAGS_face_alpha_heatmap, (float)FLAGS_face_render_threshold}; opWrapper.configure(wrapperStructFace); // Hand configuration (use op::WrapperStructHand{} to disable it) const op::WrapperStructHand wrapperStructHand{ FLAGS_hand, handDetector, handNetInputSize, FLAGS_hand_scale_number, (float)FLAGS_hand_scale_range, op::flagsToRenderMode(FLAGS_hand_render, multipleView, FLAGS_render_pose), (float)FLAGS_hand_alpha_pose, (float)FLAGS_hand_alpha_heatmap, (float)FLAGS_hand_render_threshold}; opWrapper.configure(wrapperStructHand); // Extra functionality configuration (use op::WrapperStructExtra{} to disable it) const op::WrapperStructExtra wrapperStructExtra{ FLAGS_3d, FLAGS_3d_min_views, FLAGS_identification, FLAGS_tracking, FLAGS_ik_threads}; opWrapper.configure(wrapperStructExtra); // Output (comment or use default argument to disable any output) const op::WrapperStructOutput wrapperStructOutput{ FLAGS_cli_verbose, op::String(FLAGS_write_keypoint), op::stringToDataFormat(FLAGS_write_keypoint_format), op::String(FLAGS_write_json), op::String(FLAGS_write_coco_json), FLAGS_write_coco_json_variants, FLAGS_write_coco_json_variant, op::String(FLAGS_write_images), op::String(FLAGS_write_images_format), op::String(FLAGS_write_video), FLAGS_write_video_fps, FLAGS_write_video_with_audio, op::String(FLAGS_write_heatmaps), op::String(FLAGS_write_heatmaps_format), op::String(FLAGS_write_video_3d), op::String(FLAGS_write_video_adam), op::String(FLAGS_write_bvh), op::String(FLAGS_udp_host), op::String(FLAGS_udp_port)}; opWrapper.configure(wrapperStructOutput); // GUI (comment or use default argument to disable any visual output) const op::WrapperStructGui wrapperStructGui{ op::flagsToDisplayMode(FLAGS_display, FLAGS_3d), !FLAGS_no_gui_verbose, FLAGS_fullscreen}; opWrapper.configure(wrapperStructGui); // Set to single-thread (for sequential processing and/or debugging and/or reducing latency) if (FLAGS_disable_multi_thread) opWrapper.disableMultiThreading(); } catch (const std::exception& e) { op::error(e.what(), __LINE__, __FUNCTION__, __FILE__); } } int tutorialApiCpp() { try { op::opLog("Starting OpenPose demo...", op::Priority::High); const auto opTimer = op::getTimerInit(); // OpenPose wrapper op::opLog("Configuring OpenPose...", op::Priority::High); op::Wrapper opWrapper; configureWrapper(opWrapper); // Start, run, and stop processing - exec() blocks this thread until OpenPose wrapper has finished op::opLog("Starting thread(s)...", op::Priority::High); opWrapper.exec(); // Measuring total time op::printTime(opTimer, "OpenPose demo successfully finished. Total time: ", " seconds.", op::Priority::High); // Return return 0; } catch (const std::exception&) { return -1; } } int main(int argc, char *argv[]) { // Parsing command line flags gflags::ParseCommandLineFlags(&argc, &argv, true); // Running tutorialApiCpp return tutorialApiCpp(); }