Gstreamer multiudpsink example. This plugin writes incoming data to a set of sockets.
環境. Aug 29, 2007 · This is mostly useful when the * #GstBaseSinkClass. Videosend Small gstreamer program to get feed from camera, encode and send it to multiudpsink. I configured VLC to stream a video I have on my laptop using RTSP and I want to create a pipeline to get that stream and show it. Dec 21, 2017 · The rtpbin pipeline was based on the example in the gstreamer docs, but modified for my situation. 0 filesrc location=~/D… multisocketsink. 3) and write follow pipeline: gst-launch mfw_v4lsrc device=/dev/video16 fps-n=25 capture-width=640 capture-height= Apr 8, 2020 · I'm very new to gstreamer. 2. We need to stream bayer data using gstreamer v4l2src. And I removed all the rtcp stuff to simplify it. udpsink. This plugin writes incoming data to a set of sockets. Repository (GitHub) View/report issues. 0. But I don't > find "multiudpsrc". - GStreamer/gst-plugins-good Aug 17, 2013 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. 2 May 24, 2017 · I am pretty new to Gstreamer. On one terminal (mock server) I do this: GST_DEBUG=udpsink:5 gst-launch-1. i was able to get raw data from videotestsrc and webcam working. c (or find it in your GStreamer installation). UDP Multicast Streamer & Receiver. Mar 24, 2022 · Hello, this is a GStreamer bug that happens only with the UDP transport protocol, you should contact the GStreamer team. get_property('clients') return all the clients but. This allows hlssink2 to make better decisions as to when to start a new fragment and also works better with input streams where there isn udpsink. user_data : user data set when the signal handler was connected. 16. But how add clients using a signal? I tried to modify the clients property while the pipeline is running but this didn't work, so the only way if one is to use the add signal but I don't know how to use a signal to add a client can you give me some examples please? I'm using the python bindings, thanks Nicola Jun 24, 2022 · After spending considerable amount of time I'm able to successfully run/port all GStreamer tutorials on Pixel_3a_API_29 emulator on Android Studio Chipmunk Patch 1 with GStreamer pre-built library. 5 machine: Preliminars Install gstreamer-1. 19 (git) from Docker. To actually generate udp packets on the default port one can use the udpsink element. pcapng I am hitting this in libgstreamer-plugins-good1. Here i provide single Udpsink transmitter and receiver which works absolutely fine. 7) on Windows, but I can't seem to make audio streaming between two computers work. Feb 24, 2022 · I have a RTSP server streaming out h264 video. this is what i am trying to do. カメラ映像 Send data over the network via UDP to one or multiple recipients which can be added or removed at runtime using action signals. By default, it uses mp4mux and filesink, but they can be changed via the ‘muxer’ and ‘sink’ properties. udpsrc. 1:5601 I am trying to view the stream in Videoland and am putting this address: udp://192. 2-1ubuntu2 as well as 1. 1:7001': No connection could be made because the target machine actively refused it. Can you try with the following pipeline and see if it works. Sink/Network. 0 v4l2src device=/dev/video1 ! video/x-raw,width=1920,height=1080! videoconvert ! x264enc ! rtph264pay ! udpsink host=127. Unlike the old hlssink which took a muxed MPEG-TS stream as input, this element takes elementary audio and video streams as input and handles the muxing internally. Packages that depend on flutter_gstreamer_player 'Good' GStreamer plugins and helper libraries. To achieve this, I’ve constructed a GStreamer pipeline incorporating multiudpsink to consolidate the data and distribute it to various hosts on designated ports. 1 compiled from source on Ubuntu 15. The following test case was applied on a Ubuntu 12. The URL/location can contain extra connection or session parameters for librtmp, such as 'flashver=version'. Both ffmpeg (ffplay uri)and vlc are able to stream the video but gstreamer is unable to. I have previously setup a gstreamer pipeline using an udpsink. try to get some logs for the gstreamer plugin, there could be some hints in there. @Jaeyoung-Lim I think the issue is with the gstreamer pipeline. I searched and I found your plugin, multiudpsink, that it seem to do what I want using : . This is the sender pipeline: gst-launch -v audiotestsrc ! audioconvert ! rtpL16pay ! udpsink host=224. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Overview. I am using the following code Jan 31, 2024 · Hi All, I am trying figure out ways to pass-though ac3 audio frames to tremblaysound audio receiver via gstreamer pipeline. I need to write a video client able to stream data from an RTSP source using GStreamer. All I hear at the receiver side is a short beep followed by silence. 264 video over rtp using gstreamer. 265 support in gstreamer nowadays. 1 port=5600. Attempt 2: tcpserversink host=localhost port=7001. テスト動作確認. I want to change dinamically the clients that receive the stream, without destroying the pipe and restarting it. This was tested on the windows build of Gstreamer 1. Asking for help, clarification, or responding to other answers. The pipeline seems correct. The protocols supported are : HTTP, RTSP, RTP, TCP, RTMP ,RTMPS , HLS, UDP multicast, unicast. krishnaprasad. h include. 0 videotestsrc ! x264enc ! video/x-h264, stream-format=byte-stream ! rtph264pay ! udpsink port=5200. Kindly help me with this. How to quickly build a pipeline from a textual description using gst_parse_launch(). 723322785 18715 0x55861dba00 INFO GST_ELEMENT_PADS gstelement. 4. Dec 6, 2012 · The gst-rtsp-server is not a gstreamer plugin, but a library which can be used to implement your own RTSP application. ts ! tsparse set-timestamps=true ! video/mpegts ! tsdemux ! video/x-h264 ! h264parse disable-passthrough=true ! rtph264pay ! udpsink -v host=127. 0 v4l2src device=/dev/video1 io-mode=2 ! image/jpeg,width=1280,height=720,framerate=30/1 ! nvjpegdec ! video/x-raw ! xvimagesink Also I figured out that that solution won't work for me, so I need to use gst-rtsp-server. GstElement *pipeline; Dec 13, 2010 · 2. 21. md Snippets collected/distilled from gists/blog posts/etc. I managet to run it with streameye but it says that jpeg is too large. 0 -v audiotestsrc ! udpsink port=5400. This tutorial targets the GStreamer 1. The problem is that when I use mp4mux the result. h> /* Structure to contain all our information, so we can pass it to callbacks */ typedef struct _CustomData {. This can for example be done in response to the client-fd-removed signal. Now, Gstreamer doesn’t support (as far as I know) sending bayer formatted frames via udp/rtp so I need to convert it to something else i. k June 1, 2023, 1:32pm 1. If a video stream is available, the splitting process is driven by the video stream contents, and May 27, 2018 · The modified pipeline using tcpserversink and tcpclientsrc: Attempt 1: tcpserversink port=7001. The application uses an OpenCV-based video sink for display. shmrc--->process2. c:1596 'Good' GStreamer plugins and helper libraries. I get the following warnings when running rtspsrc with a multicast interface: Unredacted pcap between GStreamer and the IP camera (don't mind the password): rtsp. After some research only way i found is to use the shm plugin. 0 audiotestsrc freq=523 ! audioconvert ! rtpL24pay ! udpsink host=127. size () chars :smileyhappy: ) + Pending work: H264 test cases and other scenarios. The Novacut project has a guide to porting Python applications from the prior 0. GStreamer Good Plug-ins is a set of plug-ins that we consider to have good quality code, correct functionality, our preferred license (LGPL for the plug-in code, LGPL or LGPL-compatible for the supporting library). Now I want to change this pipeline to instead use a multiudpsink and to that sink I want to dynamically add and remove clients as they show up (I have a tcp session setup in parallel with the stream). Thanks very much! Please let me know if there's any other information you might need. MIT . 18. Below is the output of gstreamer when gst-play uri is launched: For example: I got a signal named "get-stats" in multiudpsink, and it is defined like this: GValueArray*user_function ( GstMultiUDPSink *gstmultiudpsink, gchar *host, gint port, gpointer user_data); gstreamer_udp_rtsp. The video stream is multicasted through a Gstreamer pipeline, received by a client pipeline, and each frame is saved to an OpenCV Mat object. flutter. The camera is of 10bit, details are mentioned below, [0]: 'RG10' (10-bit Bayer RGRG/GBGB) Size: Discrete 3280x2464. 2. Notes: + Run the pipelines in the presented order. basic-tutorial-3. Server should be sending live audio to client and at the client side, vlc player should be used to play the incoming stream. Dynamic Hello World. Knowledge of the GObject and GLib libraries is not mandatory, but will make the Nov 27, 2019 · It has -v at the end, and it returns this. On Fri, 2008-12-05 at 17:54 +0800, Eric Zhang wrote: > Hi, gstreamer-devel: > > multiudpsink can send UDP packets to multiple clients. This module has been merged into the main GStreamer repo for further development. My pipeline is setup as follows: Jan 23, 2020 · 4. gst-launch-1. In the meanwhile you can switch to the TCP transport protocol and use gst-launch instead of gst-play: Sep 25, 2023 · In your example, these would be taken from the multicast addresses you specified in the pool. 0 API which all v1. Gstreamer real life examples Feb 9, 2015 · 1. 1 port multiudpsink. GStreamer core provides a framework for plugins, data flow, and media type handling. gstmultiudpsink : the sink on which the signal is emitted. To mix two audio streams you can use GStreamer's audiomixer plugin. Command line options to set overlayed text elements and /tmp/oxy file read to include external sensory payload for feed. My approach involves adding hosts dynamically using the “add” function provided by multiudpsink Oct 25, 2013 · GStreamer UDP Streaming. More. Read camera, push to UDP sink (usually from appsrc, here v4l2 camera): May 11, 2018 · lbegani commented May 17, 2018. How to create an automatic playback pipeline But how add clients using a signal? I tried to modify the clients property while the pipeline is running but this didn't work, so the only way if one is to use the add signal but I don't know how to use a signal to add a client can you give me some examples please? I'm using the python bindings, thanks Nicola multiudpsink: Fix broken SO_SNDBUF get/set on Windows · e76218c1 Seungha Yang authored Jun 26, 2021 and GStreamer Marge Bot committed Jun 28, 2021 SO_SNDBUF has been undefined on Windows because of missing WinSock2. MX. I've tried a number of variations on this pipeline with no luck. Uni-directional: from PC to i. HTTP Live Streaming sink/server. Encoded size: Up to 1920*1080 60FPS. 254',5000) and the a. using following command line (but no success) GST_DEBUG=2 gst-launch-1. 723343046 18715 0x55861dba00 DEBUG GST_REFCOUNTING gstobject. I'd prefer h264 encoding for optimum size. g. The point is that I need to fine tune the latency Nov 17, 2017 · Hello, I have a e-CAM131_CUTX2 13MP MIPI camera attached to my TX1 board, and I want to save the video stream into discrete files, of 5 min each, then later reassemble the video recordings together again, without ANY frameloss, and also preferably while recording form an USB microphone. Use UDP Multicast with GStreamer today! The user of multifdsink is responsible for closing all file descriptors. Dec 5, 2020 · gstreamerでrtp経由でストリーミング. This element is usually used with data where each buffer is an independent unit of data in its own right (e. Examples gst-launch-1. . Dec 18, 2017 · Hello, I am trying to get the video stream showing in QGroundControl and a 3rd party software like videolan at the same time. c. コマンド1つで動画配信できるようなので少しまとめておこうと思います！. When I use the following command to check the available sink in gstreamer, I find that there is no rtspsink. 今回はgstreamerでrtp ( udp )でストリーミングする方法についてまとめておこうと思います！. Feb 24, 2016 · Hi, I am trying a to develop a G-streamer plugin, with multiple sinks and a single source. 0-0:amd64==1. A buffer arrives too late in the * sink when the presentation time (as a combination of the last Aug 16, 2020 · Hey I'm trying to experiment with GStreamer's udpsinkon Mac OS Catalina. Line catenation char is comma. Sep 13, 2015 · A little late but, maybe some people will find this question when seeking info about H. 1 at this moment ). 1 port=5000 \ audiotestsrc freq=659 ! audioconvert ! rtpL24pay Oct 26, 2016 · i am trying to share an h264 encoded data from gstreamer to another two processes (both are based on gstreamer). A better way to transmit video is to encode it to reduce the size. gst_pipeline_new is used to create a pipeline. I have read Linux Multimedia Framework User Guide (Rev. mp4 file contains choppy and slowed video, but everything is fine if I use matroskamux instead. In short, clients still request a stream to rtsp://127. ERROR: Failed to connect to host '192. So I had to send an EOS event to the Encoder and the process exit without getting locked and my video was find as well. 10. API reference. See the librtmp documentation for more detail. Provide details and share your research! But avoid …. But to improve the performance of the pipeline, here a thread I found, that could help: Looks like adding queue in front of ‘videoconvert’ in the pipeline seems to improve the pipeline. May 31, 2024 · Stream H. Raw. 0 with base/good/ugly/bad plugins; Install autoconf automake autopoint libtool and the other missing essential build tools Mar 31, 2012 · Hello! I work with iMX53 Quick Start Board, I buld imx-library and GStreamer via LTIB and I try encode video from USB-camera. GStreamer is a framework for creating streaming media applications. Therefore, I can not generate rtsp stream with gstreamer commond. But I haven’t tested that myself. This line is the core of this example. (the program is written in Rexx, but it's pretty obvious what is happening, I think. Jan 19, 2020 · I am learning Gstreamer, and to start I am using the gst-launch tool to stream a video file over the network using the udpsink and udpsrc elements. License. For camera CSI capture and video encode with OpenCV, enter the command: $ . raw video buffers or encoded JPEG or PNG images) or with streamable container formats such as MPEG-TS or MPEG-PS. Today, the pipeline I have been using so far stopped working, and I noticed that GStreamer packages had been upgraded from 1. Example GStreamer Pipelines. My pipeline (which uses Android camera) in gst_parse_launch is: "ahcsrc ! videoconvert ! amcvidenc-omxqcomvideoencoderavc bitrate=6000000 i-frame-interval=2" " ! rtph264 Oct 28, 2021 · You signed in with another tab or window. render () method performs a blocking write on a file * descriptor, for example. 10 which has packages ready for libx265. Copy this code into a text file named basic-tutorial-3. Even though C is not an Object-Oriented (OO) language per se, the GStreamer framework uses GObject s, so some knowledge of OO concepts will come in handy. I have found how to stream to a different address on this forum so I now have my gstreamer options set like this: ! multiudpsink clients=192. Aug 16, 2016 · 7. GStreamer 是一个非常强大和通用的用于开发流媒体应用程序的框架。. It uses librtmp, and supports any protocols/urls that librtmp supports. Snippets collected/distilled from gists/blog posts/etc. But I could not find any example or documentation which clearly explains how to use the webrtcbin element with a NodeJS server to send stream to a web browser. With the GStreamer framework, it is possible to design and build low-latency applications that can handle any kind of streaming data flow, including both audio and video capabilities. GStreamer框架的许多优点都来自于它的模块化：GStreamer可以无缝地合并新的插件模块，但是由于模块化和强大的功能往往以更大的复杂度为代价，开发新的应用程序并不总是简单 May 7, 2024 · Learn how to build a GStreamer pipe for transmitting audio information through a multicast network at RidgeRun. Thanks and . :) udpsrc can receive from multiple clients (and its save the address in the buffer's header, its a GstNetBuffer). and on the other (client) I do this. + the gl command is equal to 'gst-launch' (two instead of 'gst-launch'. When running the following pipeline in another terminal, the above mentioned pipeline should dump data packets to the console. when you are done with the pipeline, use gst_object_unref to free its Oct 23, 2018 · using MUMBLE VOICE CHAT as an example to send a LIVE USB WEBCAM stream to multiple targets over the internet in this example there are 3 other people in t Mar 30, 2011 · I need to set up a live audio streaming server with gstreamer. The minimum file size is 1 GOP, however - so limits may be overrun if the distance between any 2 keyframes is larger than the limits. I used this pipeline $ gst-launch-1. Ubuntu. #include <gst/gst. I tried using playbin and everything works fine. Apr 14, 2021 · Yes, videoconvert does not use HW acceleration hence the reason you might see an issue. PC is streaming 4 H. You signed out in another tab or window. 0 udpsrc port=5400 ! autoaudiosink Apr 10, 2022 · Have you tried sending the EOS event directly to your encoder? I had faced a similar issue with splitmuxsink. - gst-plugins-good/README at master · GStreamer/gst-plugins-good GStreamer version: 1. Very basic example would be: Generator of 2 parallel RTP (over UDP) streams with test audios in different frequencies. As I wanna use the The main GStreamer site has Reference Manual, FAQ, Applications Development Manual and Plugin Writer's Guide. 7 auto-multicast=true port=4444. 1 API to 1. For each descriptor added, the client-added signal will be called. 0 v4l2src device="/dev/video0" ! video/x-raw,width=640,height=480 ! autovideosink. Video bit rate:5-60 fps. Ok I managed to change the property using the signal but this doesn't work dinamically, for example if "a" is my multiudpsink element I can do something like: a. gst_parse_launch() and playbin. With a tiny bit of RTFM reading and a helpful blog post with a Python example I was able to solve my basic problem: Load the asset (video) Create a Timeline with a single layer Oct 30, 2019 · An Hardware encoder is used to compress an HDMI input to H. Get the statistics of the client with destination host and port . We can learn with below command: v4l2-ctl --list Nov 14, 2021 · Fork 1 1. Examples Feb 2, 2014 · Luckily there is "gstreamer-editing-services" (gst-editing-services) which is a library offering a higher level API on top of gstreamer and gnonlin. 4 for a project where I need to restream data to multiple hosts. I need to set up a live audio streaming server with gstreamer. It is not possible to use this element to GstPipeline. Do you have the correct gstreamer runtime installed? Do the example pipelines in the repository work? Jun 1, 2023 · gstreamer, camera. /opencv_nvgstenc --width=1920 --height=1080 --fps=30 --time=60 \. I will be feeding AVC encoded streams to each sinkpad of the plugin and I will do proprietary bit format conversion and will get a bit format stream from the single source pad of the plugin. This element delivers data to a streaming server via RTMP. Combined here for fellow web-searchers -- goal is to have an easy/minimal sink for in-app use, and then forward that stream in another process. The sockets can be added to multisocketsink by emitting the add signal. Note that multifdsink still has a reference to the file descriptor when the client-removed signal is emitted, so that "get-stats" can be performed on the descriptor; it is therefore not safe to close You can modify and rebuild the application to support GStreamer pipelines for different video encoding formats. 0 filesrc location=dummy_h264. 168. gstreamer--->h264 encoder--->shmsink. We have a custom carrier board with Jetson Xavier NX and an imx219 image sensor. Write incoming data to a series of sequentially-named files. Which Gstreamer filter class can be taken as my base class for development. 1:5601 It Hello, I am using Ubuntu-provided GStreamer packages to record the RTSP stream produced by a FLIR A310 thermal camera (320x240 H264). Documentation. You will receive this stream with. A tag already exists with the provided branch name. RPi4 reads and forwards camera frames via network. 1 to 1. This is with gstreamer 1. c:670:gst_element_add_pad:<GstBaseSink@0x5586483600> adding pad 'sink' 0:00:00. And so ends your first tutorial with GStreamer. You switched accounts on another tab or window. It can be combined with RTP payloaders to implement RTP streaming. x releases should follow. My pipeline is setup as follows: May 10, 2020 · Gstreamer is available on Linux, Mac OS X, Windows, Installation: To install Gstreamer on Ubuntu 18. A client can also be added with the add-full signal that allows for more control over what and how much data a client initially receives. The tutorials are currently written only in the C programming language, so you need to be comfortable with it. c:675:gst_object_set_parent:<'':sink> set parent (ref and sink) 0:00:00. 263 streams and i. Here, it looks a lot like bash!). port : the port of the client to get stats on. Jul 14, 2021 · With GST_DEBUG=5 I get the following: 0:00:00. 14. The GstPipeline will manage the selection and distribution of a global GstClock as well as provide a GstBus to the application. We hope its brevity serves as an example of how powerful this framework is! Let's recap a bit. Send data over the network via UDP to one or multiple recipients which can be added or removed at runtime using action signals Package – GStreamer Contribute to Kurento/gstreamer development by creating an account on GitHub. Reload to refresh your session. gstreamer udp rtsp. Oct 27, 2021 · when set sink2 enable=0,the pipeline run well [sink2] enable=1 type=4 codec=2 sync=1 bitrate=1000000 rtsp-port=8554 udp-port=5400 Apr 25, 2024 · I’m currently utilizing the C++ library of GStreamer version 1. The files are updated in realtime for live streaming. You cannot go directly from ts file to h264parse, you need to first demux the ts stream - this is done with tsdemux. gstreamer_udp_rtsp. Dec 9, 2022 · A GStreamer-powered alternative to Flutter's video_player that support Linux, iOS and Android. Aug 28, 2019 · The plugin has seen a lot a new activity lately, though: GitHub - fzwoch/obs-gstreamer: GStreamer OBS Studio plugin. I wish to build a single gstreamer pipeline that does both rtp audio send and receive. I like to know how to receiver Gstreamer Live video Streaming which has dual udpsink on the Receiver sides. 723424350 18715 0x55861dba00 DEBUG multiudpsink gstmultiudpsink. 4 LTS. Mar 1, 2013 · 1. セッティング. Based on the examples (few as they are) that I've found, here is my almost working code. My pipeline is setup as follows: Jan 26, 2022 · GStreamer-example. This has worked fine. Oct 10, 2021 · The example hlssink3_server. But how add clients using a signal? I tried to modify the clients property while the pipeline is running but this didn't work, so the only way if one is to use the add signal but I don't know how to use a signal to add a client can you give me some examples please? I'm using the python bindings, thanks Nicola Aug 18, 2022 · Introduction. 0, built from source - commit b233df35. Now I'm trying to modify android-tutorial-2 with following pipeline to send the audio data over network stream but the udpsink is creating problem. MX But how add clients using a signal? I tried to modify the clients property while the pipeline is running but this didn't work, so the only way if one is to use the add signal but I don't know how to use a signal to add a client can you give me some examples please? I'm using the python bindings, thanks Nicola Jan 26, 2022 · The same pipeline above with 4 input streams and 4 demuxed outputs (each with own ecnoder) works great on Jetson AGX Xavier (On Jetson AGX Xavier there is Deepstream 5. The VPN is created by ZeroTier , an awesome service to create a virtual lan in one step ! Jun 4, 2019 · In tx2, I can run the below command to decode usb video. 6. * * The #GstBaseSink:max-lateness property affects how the sink deals with * buffers that arrive too late in the sink. + The above example streams H263 video. Jun 23, 2022 · Particular use case in which I am interested: high-speed usb bayer camera is connected to RPi4. py reads from a local file and generates a HLS manifest and segment files. 1:8554/test but the actual RTP packets of the stream travel through the multicast address. md. multiudpsink and udpsink ipv6 support for the "clients" property When I'm using udpsink element with ipv6 addresses it works fine if I define the destination through "host" and "port" properties but when I'm using the "clients" property in both udpsink and multiudpsink the elements don't send anything. 0 -v udpsrc ! fakesink dump=1 A pipeline to read from the default port and dump the udp packets. Today we have learned: How to initialize GStreamer using gst_init(). A GstPipeline is a special GstBin used as the toplevel container for the filter graph. Send data over the network via UDP. 04. I'm using the following commands to do this. On Mon, 2009-10-19 at 11:47 +0200, Dirk Griffioen wrote: > Hi All, > > I would like to know if it is possible to stream 1 source to multiple > destinations with the rtp pipeline by adding more udpsinks. 264 format. host : the hostname/IP address of the client to get stats on. Implementing GStreamer Webcam(USB & Internal) Streaming[Mac & C++ & CLion] GStreamer command-line cheat sheet. shmrc--->process1. 8. emit('add','192. After going through the Gstreamer documentation and reading other stackoverflow comments, I got a command to read the mp4 file and send it to a udpsink whith no visible errors, and another command Sep 18, 2020 · There are many examples online to use GStreamer pipeline with "tcpclientsink" or "udpsink" with NodeJS to consume the GStreamer pipeline output to Web Browser. To get the output from your webcam, we should see what kind of resolution and encode the hardware can provide us. Dependencies. I am using the following code Hi all, I made a simple gstreamer #C program that uses udpsink to stream from v4l2src to some clients. This is the magic pipe: gst-launch-1. e. I'm experimenting a bit with GStreamer (ossbuild 0. Oct 4, 2019 · I have previously setup a gstreamer pipeline using an udpsink. 1:5600,192. Jun 29, 2017 · But transmitting raw video over udp is not preferred. multifilesink. udpsink is a network sink that sends UDP packets to the network. My pipeline is setup as follows: I have previously setup a gstreamer pipeline using an udpsink. to RGB format using the bayer2rgb element. I have earlier worked with FFMPEG, however I’d like to use Gstreamer for this project. we vb vk ng od dt tb ba qa sb
