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• php shell_exec() command pop out error and permission denied ffmpeg

  19 octobre 2016, par user3711175

  This is the main index.php file where I run my code to generate a video thumbnail with ffmpeg but it has no lucks at all I have been searching online for a lot of solution but nothing comes out i will be very appreciate if you guys can help me out. The shell_exec() keep giving me error

  <form action="index.php" method="POST" enctype="multipart/form-data">
  
  <input type="file" /><input type="submit" value="upload" />
  
  
  
  </form>
  
  
  
  &lt;?php
  
  
  
  if(isset($_POST['submit'])){
  
  
  
  
  
  $ffmpeg = "/Users/mac/Documents/ffmpeg/3.1.4/bin/ffmpeg";
  
  $videoFile = $_FILES["file"]["tmp_name"];
  
  $imageFile = "1.jpg";
  
  $size = "320x240";
  
  $getFromSecond = 5;
  
  $cmd = "$ffmpeg -i $videoFile -an -ss $getFromSecond -s $size $imageFile 2>&amp;1";
  
  
  
      echo shell_exec($cmd);
  
  
  
  
  
  echo shell_exec('whoami');
  
  if(!shell_exec($cmd)){
  
  
  
  
  
      echo "thumbnail created";
  
  }else{
  
      echo "error creating thumbnail";
  
  }
  
  
  
  
  
  
  
  
  
  
  
  
  
  }
  
  
  
  ?>

• ffmpeg batch reencode with subfolders

  4 octobre 2016, par Alan

  I am trying to reencode a few hundred videos to X265 but there are many directories that have spaces in the filenames as do some of the files. I have looked at a bunch of scripts and am struggling to find one that works with the spaces and the different directory levels.

  This one works, as long as there is no sub directories :

  #!/bin/bash
  
  for i in *.avi;
  
  do 
  
      ffmpeg -i "$i" -c:v libx265 -c:a copy X265_"$i"
  
  done

  I have been trying to work with this bash script, but it fails with the whitespaces I am guessing.

  #!/bin/bash
  
  inputdir=$PWD
  
  outputdir=$PWD
  
  while IFS= read -r file ; do
  
    video=`basename "$file"`
  
    dir=`dirname "$file"`
  
   ffmpeg -fflags +genpts -i "$file" -c:v libx265 -c:a copy "$dir"/X265_"$video"
  
  done < <(find "$inputdir" -name "*.avi" | head -100)

  On this thread it looks like a good solution for windows users, but not linux.
  FFMPEG - Batch convert subfolders

  FOR /r %%i in (*.mp4) DO ffmpeg32 -i "%%~fi" -map 0:0 -map 0:1 -map 0:1 -c:v copy -c:a:0 aac -b:a 128k -ac 2 -strict -2 -cutoff 15000 -c:a:1 copy "%%~dpni(2)%%~xi"

  If you can point me to the right solution that is appropriate for bash, I would appreciate it.

• ffmpeg - invalid duration

  22 septembre 2016, par OmidAntiLong

  For a project I’m working on I have a small bash script that loops over an input csv file of timecodes, and uses ffmpeg to create screenshots of a given film at each timecode. The csv file is in the format hh:mm:ss,id - it looks like this (extract)

  00:00:08,1
  
  00:00:49,2
  
  00:01:30,3
  
  00:02:38,4
  
  00:03:46,5
  
  00:04:08,6
  
  00:04:26,7
  
  00:04:37,8
  
  00:04:49,9
  
  00:05:29,10
  
  00:05:52,11
  
  00:06:00,12
  
  00:06:44,13
  
  00:07:49,14
  
  00:08:32,15
  
  00:09:28,16
  
  00:10:17,17
  
  00:10:44,18
  
  00:11:48,19
  
  00:12:07,20

  I’ve used it without issue in the past, but today I’ve come to update some of the films and I’m getting a weird issue where ffmpeg is complaining that my input timecode is invalid, despite being in the right format.

  The new input csv files are the same format as the old ones, but it seems like every so often ffmpeg drops the hours from the hh:mm:ss timestamp. If I comment out the ffmpeg line, everything prints to the terminal as expected (but obviously I get no screenshots).

  This is my loop code :

  while read code a
  
  do
  
    echo $code
  
    f="$(printf "%03d" $i)"
  
  
  
    ffmpeg -loglevel error -y -ss $code -i $FILM -vframes 1 -q:v 2 $OUTPUT/$f.jpg
  
  
  
    ((i++))
  
  done < $INPUT

  I’ve tried all sorts, including padding the csv with extra 0s - which works until the hours tick over to 01.

  

  Does anyone have any ideas ? I’m scratching my head.

  Cheers