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• Terminate ffmpeg.exe loop

  5 mars 2019, par jinaho

  Getting a thumbnail from a RTSP source results in infinit output from ffmpeg without exiting which makes the batch script not resume.

  It is basically only one line that calls the ffmpeg process like this (example) :

  ffmpeg -i rtsp://192.168.1.89:554/11 -f image2 -r 1 thumb%03d.jpg

  The input is user generated and for some ffmpeg is not returning a thumbnail but a warning message :

  Could not find codec parameters for stream 0 (Video: h264, 1 reference frame, none(left), 1280x720, 1/180000): unspecified pixel format

  After that instead of quiting and let the batch script resume, ffmpeg outputs :

  Press [q] to stop, [?] for help
  
  frame=    0 fps=0.0 q=0.0 size=N/A time=-577014:32:22.77 bitrate=N/A speed=N/A
  
  frame=    0 fps=0.0 q=0.0 size=N/A time=-577014:32:22.77 bitrate=N/A speed=N/A
  
  frame=    0 fps=0.0 q=0.0 size=N/A time=-577014:32:22.77 bitrate=N/A speed=N/A
  
  frame=    0 fps=0.0 q=0.0 size=N/A time=-577014:32:22.77 bitrate=N/A speed=N/A
  
  frame=    0 fps=0.0 q=0.0 size=N/A time=-577014:32:22.77 bitrate=N/A speed=N/A
  
  frame=    0 fps=0.0 q=0.0 size=N/A time=-577014:32:22.77 bitrate=N/A speed=N/A
  
  frame=    0 fps=0.0 q=0.0 size=N/A time=-577014:32:22.77 bitrate=N/A speed=N/A
  
  frame=    0 fps=0.0 q=0.0 size=N/A time=-577014:32:22.77 bitrate=N/A speed=N/A
  
  frame=    0 fps=0.0 q=0.0 size=N/A time=-577014:32:22.77 bitrate=N/A speed=N/A
  
  frame=    0 fps=0.0 q=0.0 size=N/A time=-577014:32:22.77 bitrate=N/A speed=N/A
  
  frame=    0 fps=0.0 q=0.0 size=N/A time=-577014:32:22.77 bitrate=N/A speed=N/A
  
  frame=    0 fps=0.0 q=0.0 size=N/A time=-577014:32:22.77 bitrate=N/A speed=N/A
  
  frame=    0 fps=0.0 q=0.0 size=N/A time=-577014:32:22.77 bitrate=N/A speed=N/A
  
  frame=    0 fps=0.0 q=0.0 size=N/A time=-577014:32:22.77 bitrate=N/A speed=N/A

  This goes on forever meaning that the batch script does not resume. Manual invertention is required which is not intended.
  I am looking for a way to tell the script that ffmpeg has a hanging condition and make the script quit ffmpeg so it can resume.

• How can I install ffmpeg if I'm using Cloud Foundry and a python buildpack

  14 juillet 2019, par david balague

  I’m writing a python application which uses pydub and want to run it in the cloud, I’m using IBM’s ibmcloud Cloud Foundry implementation to deploy the application.

  pydub requires access to ffmpeg. The python buildpacks do not include this tool.

  How can I install ffmpeg and make sure that pydub can access it from within my application ?

  I tried to copy ffmpeg within the app’s directory, even in the app’s root directory, but I get a
  [Errno 2] No such file or directory : ’ffprobe’ : ’ffprobe’
  meaning that pydub cannot access ffmpeg.

  I tried to include an additional buildpack (https://github.com/shunjikonishi/heroku-buildpack-ffmpeg) in my manifest.yaml

  Nothing worked

  this is my masked manifest.yaml

  applications :
   services :
  - xxx_de
  disk_quota : 1024M
  - name : ffmpeg
  buildpacks : https://github.com/shunjikonishi/heroku-buildpack-ffmpeg
  memory : 128M
   name : xvz
  #route : eu-gb.mybluemix.net
  route : mybluemix.net
  instances : 1
  memory : 128M

  Could you suggest a fix or an alternative way to do this ?

  Thanks !!

• To convert from avi file to mp4 file by ffmpeg command in php

  12 septembre 2018, par user27240

  The ffmpeg command in php below creates mp4 file from avi file without deleting the original avi file meaning that,for example,
  there are two files, 1221222.avi and 1221222.mp4 exist in the directry after all.

  (’for i in /xxxxx/xxxxxx/*.avi ; do ffmpeg -i "$i" -frames:v 1 "/xxxxx/xxxxxx/$(basename "$i" .avi).mp4" ; done’)

  I’d like to delete this 1221222.avi file right after the command created 1221222.mp4 file.

  Is there any command that converts the file from avi to mp4 by replacing it ? Or do I have to add delete command after the command above ?

  I would appreciate if anyone could help me out for the command.

  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

  Even though the php script below can upload avi file from local drive to application I’m currently developping, the avi will not be played at html.
  So, I’m trying to convert from the avi file to mp4 file which is working fine by using ffmpeg command in php. This ffmpeg command creates mp4, but the html still do not play it. Is it because the original avi file still exists in the directory ?

  //php
  
  case "video/x-msvideo":
  
  
  
  if($header){
  
      header("Content-Type: video/x-msvideo");
  
  
  
   $dst_im = copy($path, $dst_file);
  
   return "";
  
   }else{ 
  
  
  
   $dst_file = $dst_file . ".avi";
  
   shell_exec('for i in  /xxxxxx/xxxxxx/*.avi; do ffmpeg -i "$i" - frames:v 1 "/xxxxxx/xxxxxx/$(basename "$i"  .avi).mp4"; done');      
  
  
  
   $dst_im = copy($path, $dst_file);
  
   }
  
   unlink($dst_im);
  
   break; 
  
  
  
  
  
  //html
  
  <video width="500" height="250" poster="video.jpg" controls="controls" preload="auto" autoplay="autoplay">
  
  <source type="video/mp4" src="xxxxxxxxxxxxxxxxxxxxx.mp4"></source>
  
  </video>