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• Révision 105450 : correction coquille et correction des liens de forum interne

  25 juillet 2017, par gouz@root-me.org

• ffmpeg transcode to live stream

  14 septembre 2016, par brayancastrop

  I need to display a ip camera stream in an html video tag, i have figured out how to transcode to a file from the rtsp stream like this

  ffmpeg -i "rtsp://user:password@ip" -s 640x480 /tmp/output.mp4

  now i need to be able to be able to live stream the rtsp input in a video tag like this

  <video src="http://domain:port/output.mp4" autoplay="autoplay"></video>

  I was trying to do something like this in my server (an ubuntu micro instance on amazon) in order to reproduce the video in the video tag but didn’t work

  ffmpeg -i "rtsp://user:password@ip" -s 640x480 http://localhost:8080/stream.mp4

  instead i got this log

  [tcp @ 0x747b40] Connection to tcp://localhost:8080 failed: Connection refused
http://localhost:8080/stream.mp4: Connection refused

  i don’t really understand what’s happening, not sure if it’s sending the output to that url or serving the output there and this, i’ve been checking the ffmpeg man docs but i didn’t find any example related to this use case and also other questiones like this one FFmpeg Stream Transcoding which is similar to my last try without success

  btw, this is the camera i’m using DS-2CD2020F-I(W) - http://www.hikvision.com/en/Products_accessries_157_i5847.html
  they offer an httppreview but it’s just an img tag source which updates but appears to be unstable

  This is my first time trying to do something like this so any insight about how to achieve it will be really usefull and appreciated

• file already in use FFmpeg

  11 septembre 2018, par boandriy

  I am running a server that stores video files. When the file is uploaded I run the method below to compress it :

  private void compressVideo(String fileName) throws IOException
  
  {
  
       String cmd[] = {"location to my ffmpeg.exe","-y", "-i", 
  
                              "location to my inputfile"+fileName,"-vcodec","libx264","-crf","20",
  
                              "location to my output file"+fileName};
  
              Runtime.getRuntime().exec(cmd);
  
  
  
  }

  It works fine if my output fileName is different from input fileName.

  But when I run the program with the same names, FFmpeg clearly starts the process but it is not ended (after that I can’t open the overwritten file, it tells me that file is in use by FFmpeg).

  There is no error followed in the console.

  I have tried doing the same thing without running the server and it worked.

  As I am the beginner, I would like to know if I made any mistakes ?
  Any ideas how can I solve this problem ?

  Thanks in advance !