phrocker commented on a change in pull request #561: MINIFICPP-854 CaptureRTSPFrame with OpenCV URL: https://github.com/apache/nifi-minifi-cpp/pull/561#discussion_r285762123
########## File path: extensions/opencv/CaptureRTSPFrame.h ########## @@ -0,0 +1,141 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You 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. + */ + +#ifndef NIFI_MINIFI_CPP_CAPTURERTSPFRAME_H +#define NIFI_MINIFI_CPP_CAPTURERTSPFRAME_H + +#include <atomic> + +#include <core/Resource.h> +#include <core/Processor.h> +#include <opencv2/opencv.hpp> + +#include <iomanip> +#include <ctime> + +namespace org { +namespace apache { +namespace nifi { +namespace minifi { +namespace processors { + +class CaptureRTSPFrame : public core::Processor { + + public: + + explicit CaptureRTSPFrame(const std::string &name, utils::Identifier uuid = utils::Identifier()) + : Processor(name, uuid), + logger_(logging::LoggerFactory<CaptureRTSPFrame>::getLogger()) { + } + + static core::Property RTSPUsername; + static core::Property RTSPPassword; + static core::Property RTSPHostname; + static core::Property RTSPURI; + static core::Property RTSPPort; + static core::Property ImageEncoding; + + static core::Relationship Success; + static core::Relationship Failure; + + void initialize() override; + void onSchedule(core::ProcessContext *context, core::ProcessSessionFactory *sessionFactory) override; + void onTrigger(core::ProcessContext *context, core::ProcessSession *session) override { + logger_->log_error("onTrigger invocation with raw pointers is not implemented"); + } + void onTrigger(const std::shared_ptr<core::ProcessContext> &context, + const std::shared_ptr<core::ProcessSession> &session) override; + + void notifyStop() override; + + class CaptureRTSPFrameWriteCallback : public OutputStreamCallback { + public: + explicit CaptureRTSPFrameWriteCallback(cv::Mat image_mat, std::string image_encoding_) + : image_mat_(std::move(image_mat)), image_encoding_(image_encoding_) { + } + ~CaptureRTSPFrameWriteCallback() override = default; + + int64_t process(std::shared_ptr<io::BaseStream> stream) override { + int64_t ret = 0; + imencode(image_encoding_, image_mat_, image_buf_); + ret = stream->write(image_buf_.data(), image_buf_.size()); + return ret; + } + + private: + std::vector<uchar> image_buf_; + cv::Mat image_mat_; + std::string image_encoding_; + }; + + private: + std::shared_ptr<logging::Logger> logger_; + std::string rtsp_username_; + std::string rtsp_password_; + std::string rtsp_host_; + std::string rtsp_port_; + std::string rtsp_uri_; + cv::VideoCapture video_capture_; + std::string image_encoding_; + std::string video_backend_driver_; + +// std::function<int()> f_ex; Review comment: Extraneous comments you may want to remove. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] With regards, Apache Git Services
