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• FFMPEG command doesn't work in PHP, what am I doing wrong ?

  3 mars 2013, par Charlie Ryan

  I'm a bit of a beginner when it comes to PHP, and I'm trying to create a simple(ish) system where files are input, and then converted to html5 video in various resolutions.

  I've sorted out how to handle multiple file uploads etc, but now I'm having a problem.

  I can't seem to get exec to execute FFMPEG in PHP.

  For example, if I type this into my command line (Terminal on Mac OSX 10.8), It converts the video correctly :

  ffmpeg -i /Users/charlieryan/Desktop/MOV01785.MPG websample.mov

  This correctly outputs the converted video file into my home directory.

  However if I run this in PHP as follows :

  exec('ffmpeg -i /Users/charlieryan/Desktop/MOV01785.MPG websample.mov');

  Absolutely nothing happens ... my stat monitor doesn't register any change in processor use, and I can't find the output file anywhere on my system.

  Since I'm a bit of a noob at this, I'm assuming I'm doing something wrong, but what is it ?

  Thanks,

  Charlie

• Revision faaaf85fc3 : Global motion work continued Interface change for the global Mv functions. Cha

  20 février 2015, par Spencer Egart

  Changed Paths :
   Modify /vp9/encoder/vp9_global_motion.c

  
   Modify /vp9/encoder/vp9_global_motion.h

  
  
  Global motion work continued

  Interface change for the global Mv functions.

  Change-Id : Ie4722faa638ac557f99743f7b33ff46c3d29e9a1

• a command in a script doesn't work when the script is launched by cron

  5 mai 2023, par a k

  When I launch the script manually both as a not-root user (with sudo) and as the root, everything work correctly.
When Cron (Cron of the root) launches it, ffmpeg doesn't work (but the others lines of the script work correctly).

  


  #!/bin/bash
log=/var/log/log2/log2.txt

echo ______________ $(date) >> "$log"
echo -n whoami '         ' >> "$log" ; whoami >> "$log"
echo -n pwd '            ' >> "$log" ; pwd >> "$log"
echo "$""USER" = '        ' "$USER" >> "$log"
echo PATH '          ' $PATH >> "$log"
echo -n which ffmpeg '   ' >> "$log" ; which ffmpeg >> "$log"
echo -n whereis ffmpeg ' ' >> "$log" ; whereis ffmpeg >> "$log"

echo "" >> "$log"
echo ls -l "/bin/* | grep ffmpeg" '        ' >> "$log"
ls -l /bin/* | grep ffmpeg >> "$log"

echo "" >> "$log"
echo ls -l "/usr/bin/* | grep ffmpeg" ' '>> "$log"
ls -l /usr/bin/* | grep ffmpeg >> "$log"

echo "" >> "$log"
echo ls -l "/var/log | grep log2" ' '>> "$log"
ls -l /var/log | grep log2 >> "$log"

echo "" >> "$log"
echo ls -l "/var | grep log" ' '>> "$log"
ls -l /var | grep log >> "$log"

ffmpeg -y -f x11grab -s 1366x768 -i :0.0 /var/log/log2/test.mp4 2>/dev/null &
echo "$!"
sleep 5
kill "$!"
exit


  


  The script puts in the file /var/log/log2/log2.txt :

  


  whoami          root
pwd             /root
$USER =          
PATH            /usr/bin:/bin
which ffmpeg    /usr/bin/ffmpeg
whereis ffmpeg  ffmpeg: /usr/bin/ffmpeg /usr/share/ffmpeg /usr/share/man/man1/ffmpeg.1.gz

ls -l /bin/* | grep ffmpeg         
-rwxr-xr-x 1 root   root      284976 mai   18  2022 /bin/ffmpeg

ls -l /usr/bin/* | grep ffmpeg  
-rwxr-xr-x 1 root   root      284976 mai   18  2022 /usr/bin/ffmpeg

ls -l /var/log | grep log2  
drwxrwxrwx  2 root              root               4096 mai    5 03:22 log2

ls -l /var | grep log  
drwxrwxr-x 16 root syslog   36864 mai    5 00:00 log


  


  I have tried to verify :

  


  

  • the permissions of the file ffmpeg

  


  • the permissions of the folder where ffmpeg writes to

  


  • the $PATH

  


  • the path of ffmpeg

  


  • the path of the file where ffmpeg should write to