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• I want to be able to view the CCTV screen on the web

  12 mars 2019, par 윤성호

  I want to be able to view the CCTV screen on the web.

  I have been working on a project that allows the ip camera to be viewed on the web.
  Then I was asked to make Coaxial camera visible on the web.
  So I decided to use DVR.
  First, I connected the DVR to the router.
  Then the input of the coaxial camera is received by the DVR and the DVR transmits the information through the router.
  Through this process, i confirmed that rtsp works normally.
  But it didn’t work on the web.

  I am currently using the nginx web server.
  and use ffmpeg to send rtsp information to rtmp on my nginx web server.
  The web server will then transform it into an hls (index.m3u8) file.
  I think something went wrong during this process.

  Nginx RTMP Config

  # RTMP Config
  
  rtmp {
  
      server {
  
          listen 1935; # Listen on standard RTMP port
  
          chunk_size 4000;
  
          application live{
  
              live on;
  
              deny play all;
  
              push rtmp://localhost/play;
  
              on_publish http://localhost:3001/api/on-live-auth;
  
              on_publish_done http://localhost:3001/api/on-live-done;
  
          }
  
          application play {
  
              live on;
  
              # Turn on HLS
  
              hls on;
  
              hls_nested on;
  
              hls_fragment_naming system;
  
              hls_path /home/banana/nginx/live;
  
              hls_fragment 3;
  
              hls_playlist_length 60;
  
  
  
              # disable consuming the stream from nginx as rtmp
  
              #deny play all;
  
          }
  
      }
  
  }
  
  # End RTMP Config

  FFMPEG command

  ffmpeg -i rtsp://<cameraip> -c:v copy -rtsp_transport tcp -preset veryfast -c:a copy -fflags +igndts+genpts -f flv rtmp://localhost/live/<cameraid>
  
  </cameraid></cameraip>

  Test results

  IP Camera RTSP address = admin:qwerty1.@ssnet4.iptime.org:555/trackID=3

  DVR RTSP address = admin:hrd-442s@hwakptz.iptime.org:4524/1

  Run the above rtsp addresses in vlc player respectively

  Success : IP Camera RTSP address , DVR RTSP address

  IP camera HLS address = http://168.131.150.80:4567/live/5c28ae28c6cd0c6c329e1ebc/index.m3u8

  DVR HLS address = http://168.131.150.80:4567/live/5c8746c9d7d74a600edf2460/index.m3u8

  Run the above rtsp addresses in vlc player respectively

  Sucess : IP Camera HLS address

  Fail : DVR HLS address

  This is the same result on the react player.

  const streamUrl = `http://168.131.150.80:4567/live/<cameraid>/index.m3u8`;
  
  <reactplayer width="{&quot;100%&quot;}" height="{&quot;100%&quot;}" url="{streamUrl}" playing="{true}" controls="{false}" muted="{true}"></reactplayer>
  
  </cameraid>

  Question

  1. Is there a way to see rtsp directly on the web ?
  2. What’s the problem and what’s the other way ?

• rtpproto : Check the source IP if one single source has been specified

  18 juillet 2013, par Martin Storsjö

  rtpproto : Check the source IP if one single source has been specified
  If another peer is sending unicast packets to the same port that
  
  we are listening on, those packets can end up being received despite
  
  using source specific multicast. For those cases, manually check the
  
  source address of received packets against the intended source address.
  This only handles the case when the source list is one single IP
  
  address for now, which probably is the most common case.
  Based on a patch by Ed Torbett.
  Signed-off-by : Martin Storsjö <martin@martin.st>
  

  • [DBH] libavformat/rtpproto.c

• Python UnicodeEncodeError : 'charmap' codec can't encode when using GEOPY

  23 février 2021, par Tony Roczz

  I have been fiddling with python geopy and I tried the basic commands given in the documentation. But I am getting the UnicodeEncodeError when trying the raw command(to geolocate a query to an address and coordinates)

  



  print(location.raw)


  



  Error UnicodeEncodeError: &#x27;charmap&#x27; codec can&#x27;t encode character &#x27;\xa9&#x27; in position 83: character maps to <undefined></undefined>

  



  Then I tried the other way around (To find the address corresponding to a set of coordinates)

  



  print(location.address)    


  



  I am getting the same error UnicodeEncodeError: &#x27;charmap&#x27; codec can&#x27;t encode character &#x27;\u0101&#x27; in position 10: character maps to <undefined></undefined>

  



  I tried print((location.address).encode("utf-8")) , now am not getting any error but the output printed is like this b'NH39, Mirz\xc4\x81pur

  



  and when using print((location.raw).encode("utf-8")) I am getting error

  



  AttributeError: 'dict' object has no attribute 'encode'


  



  Can anyone tell me what is going on here and what I should do to get a proper output ?

  



  Edit :(After being marked as duplicate)

  



  Based on the solution given in this problem I am reporting on how it does not solve my problem

  



  What I wanted to know is why do I get the UnicodeEncodeError when trying out the basic sample codings given in the documentation and it did answer for that.

  



  If I want to use it an application how do I solve the error and I cannot have the application running on separate IDE or send the output to a external file since my application will function based on the output from geopy, I want the application to run in the terminal as my other applications do.