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• how to make live rtsp player using ffmpeg ?

  20 avril 2018, par geeeek

  I am creating an rtsp live viewer using ffmpeg. I have a question about video delay, so I ask.

  At beginning play live rtsp, Video delay is about 2 seconds on general movie player(vlc, gom). However, when the playback speed is increased, the delay is reduced and the video delay is shortened to about 300 ms.

  I do not know how to reduce the delay to speed up or speed up this playback on my ffmpeg player.

  It seems like I can use something like av_seek_frame, but it does not work.
  How can I reduce live rtsp video delay with ffmpeg ?

  In summary, I’d like to get the latest frame to be av_read_frame in live rtsp.

• How to close live streaming red5 server command in shell from php

  20 décembre 2016, par vibhor Gupta

  I have live streaming ffmpeg decode streaming streamed to client using red5 server to user browser.
  Now the problem is i have to run the ffmpeg command in ubantu server shell which keeps on streaming constantly to the user .
  So my problem is how to stop this live stream when user request .

  Environment :
  PHP version 5.5.9
  ffmpeg version 3.2.2
  Ubuntu 14.04.5 LTS
  

  The php script I use to execute the shell command is :
  

  $cmd = 'ffmpeg -i rtsp://user:12345@192.168.101.101/Streaming/Channels/101 -f flv -an rtmp://192.168.1.105/live/livestream/1.mp4' ;
  
          shell_exec($cmd);

  The above script never ends so i get the live streaming but if i place any other http request during the live streaming the server puts the request in queue and does not process any other request until the live streaming is closed .

  So how can i handle this condition is there any other function in php .

• ffmpeg how to start encoding at live point (not from beginning)

  9 avril 2021, par Jintor

  Is there a way with ffmpeg to start encoding at "live point" (in other words at last encoded frame...)

  


  let met explain : 2 ffmpeg process

  


  [1] x11grab that is being generated that started a 2:00 pm.... and still continue live (I don't want to stop and continue encoding live)

  


  [2] restream the [1] but at live point (at where it is encoding now) not from start...

  


  If [2] is being triggered at 2:15 pm, it will load the first frame of [1] (start to encode from 2pm)

  


  but I want that it load the last few frames of [1] as a starting point (2:15pm)...

  


  I know that I could ffmpeg -i -ss but I have to specify a x number of seconds after -ss...

  


  is there a better way ?