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• Rsync a video stream continously and watch it

  13 juin 2017, par Ural

  I am recording a cam on a remote machine in my office. I use ffmpeg for that, and writing to mpegts file.
  I want to copy that stream locally, to have a fresh copy, and watch it simultaneously.
  I don’t know options for rsync to grab a changing (appending) file, so I am using loop for it, and it is very slow.

  while true; do rsync -avz --progress --partial --append remote:~/myvideo.mp4 ~/; done

  For watching, I tried :

  mkfifo /tmp/fifo
  
  tail -f ~/myvideo.mp4 > /tmp/fifo
  
  mplayer /tmp/fifo

  But because rsync is stopping every 5 sec, it is working unstable.

  How to record and stream a remote cam continuously, and use only one network stream for that ?

• How can I watch my video from a sdp file ?

  7 avril 2019, par Marco Peca

  I’m using ffmpeg to create a streaming. It works fine. I have a server and with ffplay I can watch my stream.
  My only (big) constraint is real time.

  I have to embed it into an HTML page accessible from mobile devices.
  I tried with HTML5 video tag but I can’t include sdp files into it.

  With ffmpeg I create a stream from my webcam. I have also created the sdp file but in HTML5 doesn’t work.

  The code is here :

  ffmpeg server :

  sudo ffmpeg -re -f video4linux2 -i /dev/video0 -fflags no buffer rtp://224.10.20.30:20000

  file.sdp

  v=0
  
  o=- 0 0 IN IP4 127.0.0.1
  
  s=No Name
  
  c=IN IP4 224.10.20.30
  
  t=0 0
  
  a=tool:libavformat 55.7.100
  
  m=video 20000 RTP/AVP 96
  
  b=AS:200
  
  a=rtpmap:96 MP4V-ES/90000
  
  a=fmtp:96 profile-level-id=1

  ffplay : (It works)

  ffplay file.sdp

  How can I view the stream in a browser ?

• Face replacement by an image in video using FFMPEG android

  18 janvier 2015, par Sanat Pandey

  I am working on FFMPEG Video Conversion, I want a face replacement by my image in a video. For this subject I searched for something which I am describing below. Please let me know if I am wrong, and suggest a more proper procedure for the task.

  1) I can extract all images from a video frame by frame.

  2) Then we detect face from each image.

  3) Morph an image onto the face.

  4) Then again make a video with these images through FFMPEG.

  Am I right ? If yes then what about audio in this process ? And if wrong then where am I mistaken ?