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• Loop a video with ffmpeg

  4 mars 2015, par Ellebkey

  I am triying to loop a short video using ffmpeg in python, and i have the next code :

  FFMPEG_BIN = "ffplay"
  
  
  
  import subprocess as sp
  
  import os   
  
  
  
  def playVideo(video):
  
      command = [ FFMPEG_BIN,video,'-autoexit']         
  
      pipe = sp.Popen(command, stdout = sp.PIPE, bufsize=10**8, stderr = sp.PIPE)
  
      pipe.wait()
  
  
  
  def playPrincipal():
  
      command = [ FFMPEG_BIN,"videos/01-bienvenida.webm","-autoexit","-an","-loop 0"]
  
      pipe2 = sp.Popen(command, stdout = sp.PIPE, bufsize=10**8, stderr = sp.PIPE)

  but the video doesnt show on my second method, im making a body gesture recognition so the point is to show a principal video stay on a loop playPrincipal() like a background, and when I detect a position show other video in front of the first video,that part alredy works, and when the video ends the first video still playing. My second though was to make a large video and play it, but after around 1.30min the screen frezze, so the video just stop.

• SDL/ffmpeg on iOS showing only blank or white screen

  3 avril 2018, par Law Gimenez

  I am following this ffmpeg/SDL tutorial using Swift and using the URL path as let urlPath = "rtsp://184.72.239.149/vod/mp4:BigBuckBunny_175k.mov" but it is only showing white or blank and it does not show anything. I want to show a window as what other tutorials say.

  I logged all the flow and there is no error. I have very little experience on SDL, let me know if some part of the code is not working.

• avformat_open_input failed at openning local rtmp stream

  3 septembre 2019, par edhu

  I’m relatively new to this workflow and this might be a simple problem to solve. However, I haven’t found answers that matched exactly with my question. I’ve set up my nginx server with rtmp module and for testing purposes I used the following command to publish my stream :

  ffmpeg -re -i  -vcodec libx264 -vprofile baseline -acodec aac -strict -2 -f flv rtmp://localhost/show/stream

  After that, I launched up my application which is supposed to read the stream from the nginx server and it failed at

  avformat_open_input(&ctx, szFilePath, NULL, NULL);

  The returned error code is -5 and it signifies I/O issue. The szFilePath I passed in is rtmp://localhost/show/stream and I assume this will automatically work since it works when I tried to play some mp4 sample files online. I also tried rtmp://localhost:1935/show/stream and vice versa. I could view the stream being played in VLC but I can’t open it in the code. I’m not really sure what happened here. I feel like this isn’t necessarily a complicated issue but I don’t know where to start looking for possibles causes. I’d appreciate the help. Thanks !