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• Video alignment error with ffmpeg in android system

  18 juillet 2012, par hyy

  I am using ffmeg to encode yuv pics to MPEG4 video file.The yuv420sp pics were got from camera preview(my android 2.3 phone). And I secondly use sws_scale change them to yuv420p.
  After the encoding the MPEG4 video has not the same image position. A
  percent of the right vertical part of the video has moved to the left side
  of the video. Does anyone know why is this happening ?

• Transcoding rtsp over http

  24 novembre 2016, par NikiDon

  Before I explain my problem : Sorry for bad English and if you want you can help me on my spelling too.

  I have a low cost IP camera who give only a RTSP link :
  192.168.x.x/onvif2
  It doesn’t need authentication to see video... my router doesn’t have open ports^^

  I want to trancode rtsp ( because of html can’t play it) with FFMPEG to send it on a server node.js ( express ) and in index.html play stream in video tag :

  Server.js :

  <code class="echappe-js">&lt;script&gt;<br />
  
      var express = require('express');<br />
  
      var path = require('path');<br />
  
      var app = express();<br />
  
      var server = require('http').Server(app);<br />
  
      var io = require('socket.io')(server);<br />
  
  <br />
  
      app.use(express.static(path.join(__dirname, 'public')));<br />
  
  <br />
  
      app.get('/', function (req, res) {<br />
  
          res.sendFile(__dirname + '/index.html');<br />
  
      });<br />
  
  <br />
  
      server.listen(8080);<br />
  
      console.log(&quot;server run at 127.0.0.1:8080&quot;);<br />
  
  <br />
  
      io.on('connection',function(socket){<br />
  
          socket.emit('hello','hello user');<br />
  
      });<br />
  
  &lt;/script&gt;
  
  

  and index.html :

      <video style="background-color: black;" width="480" height="270" autoplay="autoplay">
  
      <source src="http://127.0.0.1:8080/vid2.mp4" type="video/mp4" codecs="avc1.42E01E, mp4a.40.2"> 
  
      </source></video>
  
  
  
      <code class="echappe-js">&lt;script&gt;<br />
  
          var socket = io.connect();<br />
  
          socket.on('hello',function(data){<br />
  
              console.log(data);<br />
  
          });<br />
  
  <br />
  
      &lt;/script&gt;
  ffmpeg -i rtsp ://192.168.x.x/onvif2 -crf 30 -preset ultrafast -acodec aac -strict experimental -ar 44100 -ac 2 -b:a 96k -vcodec libx264 -r 25 -b:v 500k -f flv http://127.0.0.1:xx/vid2.mp4
  
  
  

  The camera starts but I can’t find vid2.mp4

  How can I replace ffserver with a node server (http? udp ?...)

• Anomalie #4707 (Nouveau) : SPIP n’indique plus qu’une nouvelle version disponible

  29 mars 2021

  La dernière version SPIP 3.2.10 est sortie mais on ne le signale pas dans le backoffice

  si on lance le genie de mise à jour sur un SPIP 3.2.7 ou SPIP 3.2.9 par ex. on ne trouve rien.

  pourtant le fichier archives.xml semble bien renseignée avec archives/spip-v3.2.11.zip
  https://files.spip.net/spip/archives.xml

  en regardant le code, cela a l’air de coincer au niveau de la regex
  https://git.spip.net/spip/spip/src/branch/3.2/ecrire/genie/mise_a_jour.php#L123

  je ne sais pas s’il y a qqchose de mal formaté ou non.