It supports both TCP and UDP, allows any payload format, and provides a convenient and flexible API. Once the cameras are setup for recording, you could quickly search recorded video and export events as movies or just images. 264/AAC stream over both TCP(Interleaved) and UDP. 3. I just want to connect an app to an RTSP server and communicate to get stream (as a byte array/buffer, no decoding, no playback, nothing else than get the byte stream). You need to provide capabilities for rtph264depay to correctly recognize video format. Progress: client support. Network streaming media support: Try the following connection options in iSpy or Agent DVR to connect to your Swann IP camera. Version 6. 0 IP surveillance cameras, as needed by Moonfire NVR. Unlike ExoPlayer which also supports RTSP, this library does not make any video buffering. Allow access for the Crestron remote as required for your network. for writing GStreamer-based applications and GStreamer plugins. The server returns a list of request types it can accept through RTSP. 0 client and server library for the Go programming language, written for MediaMTX. RTSP/1. Sep 27, 2023 · VLC media player. Rtsp Player is a free and easy to use video viewer specifically designed for rtsp video streams. Optimized the log and audio and video recording functions. Happytime ONVIF client library core target file is small and can be used to develop video surveillance systems and network video recording (NVR) devices. 1:9988. It is designed to allow the user to send JPEG frames to the server, which will then send them to the client over RTP/UDP. Use IP Camera Viewer 2 app to monitor and record video from up to 8 IP Cameras. I can stream the camera and dump to disk (on my desktop). I had success with a VLC mosaic player on Windows, and was wondering if anyone knew of any alernatives for Mac? VLC exists for Mac. 21:554/mpeg4. Implements Discovery, Device, Media, Imaging, Analytics, Events and PTZ services. HTML 5 video does not support RTSP. 4 stars Watchers. Oct 28, 2015 · This article explains how to configure the VideoLAN VLC media player to stream live or on demand streams through RTSP/RTP over TCP (RTSP/RTP interleaved). /key. rtsp-output: Fixed the bug that the SPP header could not be obtained when using the jim-nvenc encoder. Full Client RTSP support. 9. Support publishing rtc stream using Whip. 实时串流协议 （Real Time Streaming Protocol， RTSP ）是一种网络应用协议，专为娱乐和通信系统的使用，以控制 流媒体 服务器。. Latency is usually introduced by clients, that put frames in a buffer to compensate network fluctuations. The on-console RTSP server "Simple network mode" is still available. java netty rtsp-client Resources. RTSP Client. Support protocol conversion from RTSP to RTMP/HLS/HTTP-FLV. sdp. Command line video recording with the --file option. Support RTSP. The settings for Swann cameras are built right into our free surveillance software - the inbuilt wizard will automatically setup your Swann cameras. As a native client with support for standard streaming protocols, it allows to keep an eye on cameras from different brands in a secure way and without dealing with multiple clunky web apps, plugins or obsolete applications. video surveillance from drones). 26 Jun 9, 2014 · I've got a few IP Cameras which output an RTSP (h264 mpeg4) stream. rtsp-server: Optimized the code. Step 4 The live video will be displayed in your player. 1. If you have control over client/servers you could use the Require header on clients and Unsupported on servers to indicate that UDP isn't supported; but most clients I've seen don't use this. Download the latest version from the releases page. This function only works for streams that it supports In the popup window, the first button on the second row is RTSP by default. digest authentication. It is capable of playing multiple streams at the same time, and it offers support for numerous video Dec 8, 2023 · RTSP allows a client device to send an RTSP request to the server to determine options like pause, play, and record. It supports playing video and audio in multiple formats, like MP4, MOV, OGG Features: - FREE and No ads: this is a non profit app to be used by IOT enthusiasts and regular users around the world. 264/H. That's about client side (web browser). Ultimate camera streaming application with support RTSP, RTMP, HTTP-FLV, WebRTC, MSE, HLS, MP4, MJPEG, HomeKit, FFmpeg, etc. Jul 11, 2013 · rtsp client. pub: string: RTSP_STREAM_AUTH_JWT_METHOD: Can be secret or rsa Dec 1, 2010 · There is no such request. So no all-in-one player suggestion or something else please, just an RTSP access client. Solve the problem of printing floating point numbers in different countries. RTSP/RTP Proxy latest update: February 29, 2024. Hey, I have recently got an old Mac Mini and I want to use it to view multiple RTSP streams in tiles. 10. Keyboard Shortcuts? Show this help dialog S Focus the search field ↑ Move up in search results ↓ Move down in search results ↹ Switch tab ⏎ Go to active search result The RtspServer class provides an implementation of an RTSP server. through RTSP protocol). Fixed some other issues. Note: For cameras lacking integrated motion detection The concept was to make a client from the SDK source that allowed to pass through the video stream to a local Live555 RTSP server in LAN mode so that we can add our RTSP to our software DVR so you don't have to connect the device to the cloud. It is certainly possible to link Live555 with Qt. Bonus: this stream is also viewable with VLC (version 3. If you want, you can have URL for live streaming, and in RTSP DESCRIBE request, tell the client what is currently on. Read TLS-encrypted streams (TCP only) Switch transport protocol Sep 18, 2020 · It may take a few seconds to start up and there will be a few errors at first, but the video should begin playing in ffplay4 within a couple seconds. Enter RTSP url and stream IP cameras with RTSP web player by VXG. Key features. Java RTSP Client based on Netty NIO framework Topics. Basic and Digest Authentication. Simply fire up the included rtsp-server. Support protocol conversion from WHIP to RTMP/HLS/HTTP-FLV. Possibility of mixing ffmpeg and websocket? Assume my IP camera is connected with Ethernet. ONVIF client supports MAC and IOS platforms. To start receiving, we need to simply connect to the RTSP stream. NET 4. A GstRTSPClient is created by GstRTSPServer when a new connection is accepted and it inherits the GstRTSPMountPoints, GstRTSPSessionPool , GstRTSPAuth and GstRTSPThreadPool from the server. Otherwise, stream audio language is automatically selected based on the Audio Language Settings (1st Audio) on your LG Smart TV (see picture below). live555 Media Server下载; 变成可执行文件; chmod 777 live555MediaServer 创建个文件夹，把live555MediaServer放进去，执行命令，看到一堆信息 QVR Pro now provides motion detection even for budget-friendly cameras and USB webcams as long as they can stream their footage to QVR Pro (e. Teil 3. Read the first (RTSP) document, all is there! Answer to your question is this: RTSP/1. The server currently only supports MJPEG streams, since the ESP32 does not have a hardware Client can pass queued buffer to remuxer with samples event. 20 is required. Nov 24, 2014 · What client connects to your server? Some clients can be triggered through the URI method in the URL. The main window of AnyCam displays the connected cameras. 1 rtsp://12. Default client is RTSP client over websocket transport. Documentation can be found here. In the right window select which resolution to use. - Ultra solid Multi Camera support: using VLC (very fast and reliable camera feeds) - UI elements: Buttons and Dynamic Text/Emoji labels. To add a new camera, all you have to do is specify its IP address. 9, released on December 8, 2023. 即時串流協定. 0 udpsrc port=5000 ! "application/x-rtp, media=video, clock-rate=90000, encoding-name=H264, payload=96 Feb 7, 2012 · I'm trying to get their tutorial code running to connect to a rtsp stream from my webcam and display the feed on a JFrame. avi -f rtsp -muxdelay 0. , an URL that begins with rtsp://. Login with your credentials. 1). At launch, a randomly generated streaming URI is displayed. EasyPlayer support RTSP(RTP over TCP/UDP),video support H. 6. Pause, Play, and Teardown (Close) In the future, RtspClient plans to support: RTCP. 264, H. ini file: --- enable_restreamer=false ---- support Restreamer in tunnel client - support h265 stream in tunnel client - a tunnel search button and an example of configuration between a proxy and a client tunnel were added to the test page Need multi RTSP viewer for OSX. Jan 1, 2020 · Using VLC, you can access your camera’s RTSP stream using the File > Open Network menu item. 265/H. Video encoding supports H. 1) System Specifications: MacOS Sierra, Version 10. Not sure why you having issues; Axis ActiveX works pretty good for me. On Visual Studio, make sure that you are targeting . basic authentication. Jan 9, 2020 · parse the RTSP and extract the h264 stream. The bindings are mostly autogenerated with gir based on the GObject-Introspection API metadata provided by the The best online HTML5/JS RTSP viewer/player for streaming. Base class for transports can be found in core/base_client. Hierbei können Sie normalerweise die RTSP-Funktion in dem Client der IP-Kamera unter „Netzwerk Einstellung“ finden und dann prüfen. And now you have got a Stream Key from Facebook. Features: Client. For example, you could specify rtspt://myhost/path. NET Core 2. We implemented the protocol used by the NVIDIA Shield and wrote a set of 3rd party clients. Live555 is one way to do that, it is just a C++ library that can be linked with other applications, including Qt. The thing is, I still have no idea how to generate a RTSP screen stream. Feb 26, 2022 · 最后更新于 2021 年 12 月 14 日 RTSP 视频播放器是一种流行的格式，用于有效地流式传输实时视听媒体。 通过在 Mac 上的 VLC 播放器上播放，您可以享受高品质的娱乐。 但是 VLC 对 RTSP 的支持有多好，还有其他选择吗？ 如果本文未涵盖您的解决方案，我们很乐意为您提供帮助，请提交此表格。 RT Mar 10, 2014 · ONVIF Device Manager is a Network Video Client (NVC) to manage Network Video Transmitters (NVT), Network Video Storage (NVS) and Network Video Analytics (NVA) devices. To begin sending video, you can use any client which supports the ANNOUNCE and RECORD RTSP methods, such as FFmpeg: ffmpeg -re -i /input. The steps I can currently think of are. If not click it and select RTSP from the drop down menu. Explore the platform of Zhihu Zhuanlan, where you can freely express and write about various topics. restructure the stream (convert it to fragmented MP4) websocket (see later) fMP4 can be easily played by HTML5 video if the browser has the MSE (alternative is to use broadway. Additionally, you cannot capture and save the video data in the stream. Fixed audio not working on mac os. It supports cross-platform compilation and can be easily ported to embedded systems. GStreamer (RTSP library) bindings for Rust. js that is cool but CPU intensive) There are solutions where the step 1 and 2 happens on server side, then the fMP4 is pushed Welcome to RTSP Stream, the ultimate tool for developers, testers, and video streaming enthusiasts! Our app turns your device into a versatile streaming powerhouse, enabling you to broadcast a test pattern or live feed from your device's camera over RTSP. Jun 10, 2014 · Version 11. 726/AAC！ The RTSP protocol doesn't introduce any latency by itself. 12). RTP over TCP via RTSP interleaved channels. ; Once launched, the app sits in the menubar and runs on localhost (127. pl application and it will listen for clients on port 554 (standard RTSP port), and source streams on port 5545. RTSP_STREAM_AUTH_JWT_ENABLED: Indicates if the service should use the JWT authentication for the requests: false: bool: RTPS_STREAM_AUTH_JWT_SECRET: The secret used for creating the JWT tokens: macilaci: string: RTSP_STREAM_AUTH_JWT_PUB_PATH: Path to the public shared RSA key. Another way would be to write your own RTSP client based off the RFC spec . rtsp-client-android. This will allow the Crestron remote to connect to the flex unit over the Or select it from the NuGet packages UI on Visual Studio. While HTTP streaming is a newer standard offering more features, RTSP/RTP streaming may work better when streaming through a firewall/router, which doesn't have UDP streaming open. The client object handles the connection with a client for as long as a TCP connection is open. RTSP 1. Only Mac OS, and Safari supports RTSP Live Streaming. Status: In production use in Moonfire NVR. You can stream your collection of PC games from your GameStream-compatible PC to any supported device and play them remotely. Stars. SmolRTSP is a simple RTSP 1. 264 / H. RTP over UDP. Again, it will take a few seconds (5-10) to begin displaying the video. 265 / MPEG-4) / HTTP (MJPEG) streams is supported; Cameras can be viewed individually or all together in video wall mode; Mac 搭建RTSP服务器 环境. Jul 24, 2020 · Free download 5KPlayer - RTSP player for computer. In terms of video and audio codecs, it supports video codecs such as H264, H265, MPEG4, MJPEG, and audio codecs Screenshots. (A related program - " playSIP " - can be used to play/record a SIP session. The client then sends a media description request, and the server responds with a description of the media. 12. RtspClient does currently support: Raw RTP/AVP over TCP. I have 4 streams that I need to see, this could go up to 6. I was looking at ways to capture the RTSP stream and dump them to disk but I'm unable to find . - AlexxIT/go2rtc Relaying the stream with the --rtsp option on the client. RtspClient is written with ES6 and works fine with node 7. A command-line RTSP client. Available in the App Store since 2018 and constantly updated, GlanceCam is Sep 10, 2023 · This RTSP Windows player is a fork of complete RTSP streaming media player project developed by TSINGSEE Qingxi open platform. Works around brokenness in cheap closed-source cameras. It is able to play audio and video streams from most cctv security cameras and other online video sources. Network streaming media support: Jan 8, 2023 · retina. 5. If you have webOS TV, you will need to set webOS Video Mode to NC MPEG or NC Auto in App's Settings for this "forced" function to work. VLC media player is a free, no-spyware, no-ads and no-user-tracking cross-platform multimedia player and RTSP stream viewer. rtsp-simple-server is a simple, ready-to-use and zero-dependency RTSP server, a software that allows multiple users to publish and read live video and audio streams. EasyPlayer-RTMP播放器是一套RTMP专用的播放器，包括有：Windows、Android、iOS三个平台，是由紫鲸云开发和维护的区别于市面上大部分的通用播放器，EasyPlayer-RTMP系列始于成熟的商业项目，其底层模块EasyRTMPClient经过多年的发展，上层模块复用EasyPlayer-RTSP项目，均是站在巨人肩膀上的产品，目前得到了 Happytime RTSP Client supports cross-platform compilation, including Windows, Linux, Android, MAC, and iOS. 12; 搭建DDS失败，安装上之后，网页打开不开. File -> Open Network -> URL rtp://@127. . Then click Scan Network next to it. The client sends a request to the server to stream a particular media file or content. RTSP is a standardized protocol that defines how to perform these operations with the help of a server, that is contacted by both readers and publishers in order to negotiate a streaming protocol. It is multi-threaded, scalable and flexible, and provides support for static or dynamic mount points, authentication, retransmission (rtx), encryption (srtp, secure 1. As most ISPs and players only allow RTSP streaming through port number 554, set the RTSP port to 554. gst-launch-1. RtspClient does currently support: name - channel name url - channel rtsp url on_demand - stream mode static (run any time) or ondemand (run only has viewers) debug - enable debug output (RTSP client) audio - enable audio status - default stream status Jan 21, 2015 · I've read and found the RTSP protocol to be quite suitable for this, and have found a library on the mobile side that seems to receive and display RTSP streams quite well. May 24, 2023 · Here is a basic overview of how RTSP works: The client establishes a connection to the server using the RTSP protocol. Next, enter your RTSP URL in the “URL” field and then click the OPEN button. 34. In terms of video and audio codecs, it supports video codecs such as H264, H265, MPEG4, MJPEG, and audio codecs such as G711 Happytime RTSP Client supports cross-platform compilation, including Windows, Linux, Android, MAC, and iOS. An free, elegant, simple, fast windows RTSP Player. 1. 265,audio support G. 6 I'm using VLCJ's DirectMediaPlayer Component to embed vlc media player in the jFrame. 56. rtsp-output: Simplified the way audio tracks configurations are stored in configuration files. Hitting the URL locally via VLC: rtsp://192. 7. The Real-Time Streaming Protocol ( RTSP) is an application-level network protocol designed for multiplexing and packetizing multimedia transport streams (such as interactive media, video and audio) over a suitable transport protocol. In order to decrease latency, the best way consists in tuning the client. Readme License. Remember to also try connecting via ONVIF as Swann cameras may support ONVIF connections as well. Many missing features. Format compatibility: Happytime Media Client supports a wide range of media file formats, supports video codecs H264, H265, MPEG4, and MJPEG, as well as audio codecs G711, G722, G726, AAC, and OPUS, ensuring that users can play various types of media content without any barriers. However, the ONVIF Device Manager only streams live video. Rtsp client supports EPOLL mode for Linux platform. I can use the VLC plugin, but I don't want to use that. Step 2: Copy and paste the RTSP URL of the content into the URL box. Wait until the download completes, and then open it (the exact procedure varies a bit per browser). yml: protocols: [tcp] paths: all: source: publisher Start the RTSP server as a Docker container: Jun 12, 2022 · About the App. 方案. I'd like to however store these files on my NAS (FreeNAS). Support subscribing rtc stream using Whep. It also supports audio back channel and metadata channel, and provides a convenient and easy-to-use SDK interface. Our player core provides HTML5 video playback of RTSP streams over WebSocket using Media Source Extensions Playback of an RTSP stream in popular browsers and mobile applications without installation of any software or plugins, right on the GStreamer's RTSP server (gst-rtsp-server) is a featureful and easy-to-use library that allows applications to implement a complete RTSP server with just a couple of lines of code. RFC 2326, 7826. Copy the text from the "Stream Key" field. Video capture supports MJPEG format raw data. g. e. Query servers about available media streams. ui: Optimized the code. Diagramatically, this is how the network might look: Jun 27, 2017 · Step 3 The address format is rtsp:// ip_address: rtsp_port / RTSP_streaming_access_name_for_stream1_or_stream2. Note that we need to specify the IP address of the streaming device for receiving the stream. RTSP Stream im Browser anzeigen 8. Mac 10. To have a RTSP client, you need to process the RTSP protocol one way or another. FWIW, I was able to setup a local RTSP server for testing purposes using rtsp-simple-server and ffmpeg following these steps: Create a configuration file for the RTSP server called rtsp-simple-server. VLC Media Player, a free media player and converter for Mac and PC computers, supports playback of many types of streaming media, including HTTP, MMS and RTSP streams simply by pasting the stream's URL into the proper field. 该协议用于建立和控制终端之间的媒体会话。. Playing without receiving. Whether you're testing your network setup, developing a streaming app, or just dabbling in High-level RTSP multimedia streaming library, in Rust. 媒体服务器的客户端发布VCR命令，例如播放，录制和暂停，以便于实时控制 Oct 16, 2013 · For PC desktop viewers, you need to have 3 Flash players hosted on your webpage, and provide them with 3 RTMP URLs that refer to your 3 live streams. You may also be alerted to the PC needing to make a change to your firewall. To identify stream track client should fire tracks event. 0. 0 license Activity. Video frames are shown immidiately when they arrive. Support publishing or subscribing H. For server side, you need some streaming server software that will ingest RTSP streams from your 3 cameras and will re-package them to RTMP streams for Streamedian presents HTML5 RTSP streaming video player over WebSocket for working with video on the web. App name: openrtsp; App description: Command-line RTSP client; App website: Not Available; Install the App. Feb 6, 2022 · RTSPとは何か？ RTSPとは、近年のネットワークカメラにおいて、最も一般的に利用されている映像配信（映像取得）の方法である。RTSPは、リアルタイムストリーミングプロトコルの略である。 例えば、NVRやVMSなどがカメラから映像を取得し、ライブ映像の表示などを行う際に、RTSPという Prüfen Sie, ob das RTSP Setting im Client aktiviert wird. Record and Announce Methods. "openRTSP" is a command-line program that can be used to open, stream, receive, and (optionally) record media streams that are specified by a RTSP URL - i. Zudem brauchen manche IP-Kameras vielleicht noch die Aktivierung des RTSP Settings. RTSP is used in entertainment and communications systems to control streaming media servers. If so, select the detected camera. Then click Ok. The app allows to easily setup recording video on schedule, or events only (Motion Detection, Person Detection, etc). This RTSP player is compatible with both Windows 10 and macOS Catalina. PC rtsp client application. Select the "Live Video" post option>>Select "Connect" at the top>> Select "Settings" on the top right>>Select "Live Video" to expand the live video settings>>Check the box "Publish this as a continuous live video". 101:8090/stream. Aug 29, 2023 · Happytime RTSP Client is a desktop application designed to serve as a client for RTSP streams. Feb 29, 2024 · Download RTSP/RTP Proxy latest version for Mac free. QVR Pro allows you to build a more-secure surveillance system for homes and office environments on an affordable budget. Step 1: Launch this RTSP/RTP player and click on its "Live" section. ) Basic operation. 265, MPEG4, MJPEG, and audio supports G711A, G711U, G726, AAC. Navigate to the OpenVPN Access Server client web interface. Capture the Mac's desktop and encode it into an mpeg stream. Happytime RTSP Client is a powerful and easy-to-use cross-platform RTSP client program, capable of simultaneously playing and managing multiple RTSP streams, providing users with a smooth multi-channel video experience. For more information, see the “RTSP Streaming” section. Moonlight (formerly Limelight) is an open source implementation of NVIDIA's GameStream protocol. Designed for lag criticial applications (e. Lightweight RTSP client library for Android with almost zero lag video display. live555 Media Server(Mac) VLC(iOS Client) 步骤. Step 5: Cameras in the same LAN should be detected automatically. Main features of AnyCam: Connection of cameras broadcasting ONVIF / RTSP (H. 0 server library tailored for embedded devices, such as IP cameras. These bindings are providing a safe API that can be used to interface with GStreamer, e. This can be done by running the following code on the terminal of the client device (s): $ vlc rtsp://192. 2. Press Command+Space and type Terminal and press enter/return key. Linux, Mac. Progress: digest authentication. To get correct capabilities just run sending code with -v flag and copy rtp-specific caps to the receiving pipeline. By default, the restreamer function is enabled; to disable it, change the following parameter in the ws_rtsp. Rtsp client supports receiving only required channel data. Apache-2. Support streaming image files. If you want to stream RTSP directly to web page, then I am afraid your only option is to use an ActiveX control viewer that comes with the camera. I modified their example code to make a simple client rtsp viewer. I believe QuickTime GlanceCam is beloved IP camera viewer for Mac. The tool makes it easy to discover and view video from ONVIF compliant cameras on a network. The installer requires administrator privileges to work properly. In terms of video and audio codecs, it supports video codecs such as H264, H265, MPEG4, MJPEG, and audio codecs RtspClient is a high-level library for receiving data from RTSP/RTP with support for MJPEG and JPEG frame decoding. Mar 24, 2014 · Problem #2. 0, released on February 25, 2022. Happytime ONVIF client library supports multiple platforms, including Windows, Linux, MAC, iOS, Android, etc. High-level RTSP multimedia streaming library, in Rust. 0 or later, as this package uses some features of newer . 1/. Click on the Mac icon: 4. Support WebRTC(Whip/Whep). The server responds to the request, providing details such as the media type, encoding, and location. 711/G. Multiple fixes for bugs reported by users: Fixed video recording not working on linux. This is unlikely going to happen since this cloud feature is embedded in the firmware itself. - Multiple Controls: You can have as many controls as you want and switch them from home Jul 26, 2010 · 0. exe and double click to launch the install file. 726/AAC！ EasyPlayer RTSP是一款免费精炼、高效、稳定的RTSP流媒体播放器，视频支持H. Good support for ONVIF RTSP/1. 168. Step 3: Click "Play" and 5KPlayer will respond soon. Open the ‘OpenVPN Connect installer’ to start the installation then click ‘Continue’. rtsp client. It is used to receive RTSP requests and send RTSP responses. 0 but should work with 6. It can almost play most multimedia files, including various streaming media protocols, DVDs, CDs, VCD webcams, and devices. This is a direct connection IP Cam -> Viewer, and should really be the fastest. Support user authentication method settings, defaulting to WS-UsernameToken authentication method. Dec 25, 2023 · rtsp-server: Fixed compilation errors. NETs. Remove the five seconds timeout setting for RTP data sending. Contribute to alsrb968/python-rtsp-client development by creating an account on GitHub. 0 200 OK CSeq: 3 Session: 123456 Range: npt=now- RTP-Info: url=trackID=1;seq=987654. 🏎️ Performance Improvements. Download the . When ready, flush event can be used to construct media fragment and pass it to video presenter. EasyPlayer support RTSP(RTP over TCP/UDP),support multicast play,video support H. Mar 14, 2017 · I'm looking for a way to make an RTSP client in Android. When I specify the directory location in the playMedia method, I can play mp3s, mpegs, avi's just fine. The free and simple RTSP viewer for Linux, Windows and MacOS. Play (read) Read media streams from servers with the UDP, UDP-multicast or TCP transport protocol. I'm also an unlucky owner of a cheap IP-camera (SAF IP-300). source venv/bin/activate An free, elegant, simple, fast Windows/Android/iOS RTSP Player. Go ≥ 1. In the client machine: I run ffmpeg to get the data from server (ie: IP) Client machine runs websocket. The ONVIF Device Manager is a free, open source Network Video Client from iDeviceDesign that complies with ONVIF standards. 78:5545/abc I am trying to connect to a d-link IP Camera and stream live video over RTSP using VLCJ library (Version 3. vy rz yg zp sz uo os pz lr xn