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• Can not add string to the video using ffmpeg base on PHP

  13 septembre 2016, par Hạ Tím

  I’m new in ffmpeg and I’m trying to make a demo using ffmpeg.
  Below is the PHP script

  $cmd = '"C:\Program Files\ffmpeg\bin\ffmpeg.exe" -i C:\wamp\www\vine-project\cron/tmp/t_42953497622724.mp4 --enable-libfreetype -vf "drawtext=fontfile=C:\wamp\www\demo-ffmpeg\cron/arial.ttf:text='Stack Overflow':fontcolor='Black':fontsize=19" -codec:v libx264 -codec:a copy C:\wamp\www\demo-ffmpeg\cron/tmp/text_42953497622724.mp4';
  
  @exec($cmd, $output);
  
  echo '<pre>';
  
  print_r($output);
  
  echo '</pre>';

  And then below is the result of output :

  Array
  
  (
  
  )

  Before, I joined multi videos and add background successfully.
  Input video file is exists.
  What is my wrong ? Are something incorrect ?
  3 cups of beer for each help :D
  Sorry for my bad English
  

  Thanks for attention !

• bash scripting : pass string containing multiple parameters and filenames with spaces to ffmpeg

  2 septembre 2016, par Mia Lon

  I have a script that generates a text file with entries like :

  -ss 5.5 -i "/path/vid 1.mp4" -t 3 "/path/vid out1.mp4"

  But when I call ffmpeg with this string attached it fails.
  If I quote the variable then ffmpeg considers the entire string as a single option, error "Option not found".
  If I don’t quote, then for some reason ffmpeg ignores the double quotes and reports "/path/vid :No such file or directory.

  Even though it prints the input correctly as -i "/path/vid 1.mp4".

  Replacing the double quotes around the filenames with single quotes doesn’t help.
  But when I pass the string to zenity and then manually copy it into the terminal, it works :

  zenity --entry --entry-text "ffmpeg -nostdin $line2"

  So I tried assigning the entire command to a var and then running
  bash $var or exec $var, but no luck. Assigning it to an alias doesn’t work either : "command not found"

  Solution by Joan Estaban :

  echo $stringvar | xargs ffmpeg

  A short full script demonstrating the problem :

  #!/bin/bash
  
  
  
  
  
  fffile="/home/vume5/Desktop/dwhelper/bud grafting animation.mp4"
  
  
  
  line="-ss 4.920000 -i \"$fffile\" -t 60.000000 -map 0 -c:v copy -c:a copy \"$fffile.cut.mkv\""
  
  
  
  zenity --entry --entry-text "$line"
  
  
  
  ffmpeg $line
  
  
  
  read dummy

• checkasm : arm : Don’t start new const blocks for each string

  16 juillet 2016, par Martin Storsjö

  checkasm : arm : Don’t start new const blocks for each string
  Each const block needs to be terminated by one endconst
  
  invocation so either call endconst after each, or just
  
  declare plain labels to the later strings.
  This fixes errors such as this, on some binutils versions :
  checkasm.S:38 : Error : Macro `endconst’ was already defined
  Signed-off-by : Martin Storsjö <martin@martin.st>
  

  • [DBH] tests/checkasm/arm/checkasm.S