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• downloading and concatenating parts of videos from youtube

  17 octobre 2018, par amit

  I’m trying to create a video quiz, that will contain small parts of other videos, concatenated together (with the purpose, that people will identify from where these short snips are taken from).

  For this purpose I created a file that contain the URL of the video, the starting time of the "snip", and its length. for example :

  https://www.youtube.com/watch?v=5-j6LLkpQYY   00:00   01:00
  
  https://www.youtube.com/watch?v=b-DqO_D1g1g   14:44   01:20
  
  https://www.youtube.com/watch?v=DPAgWKseVhg   12:53   01:00

  Meaning that the first part should take the video from the first URL from its beginning and last for a minute, the second part should be taken from the second URL starting from 14:44 (minutes:seconds) and last one minute and 20 seconds and so forth.

  Then all these parts should be concatenated to a single video.

  I’m trying to write a script (I use ubuntu and fluent in several scripting languages) that does that, and I tried to use youtube-dl command line package and ffmpeg, but I couldn’t find the right options to achieve what I need.

  Any suggestions will be appreciated.

• PHP ffmpeg exec returns null

  19 mars 2012, par benedict_w

  I'm trying to run ffmpeg through a PHP exec call, I've been debugging for a while and looked at lot of responses on here, but still not found any answers...

  My simplified call is :

  $cmd = 'ffmpeg 2>&1';
  
  
  
  exec(escapeshellcmd($cmd), $stdout, $stderr);
  
  
  
  var_dump($stderr);
  
  var_dump($stdout);
  
  var_dump($cmd);
  
  exit;

  My output is $stderr = int(1) and $stdout = array(0)

  Also I tried shell_exec($cmd) which returns NULL.

  cmd.exe has permissions set for the IUSR account - e.g. I can run $cmd = 'dir' and see a directory listing output.

  PHP is not running in safe mode.

  The ffmpeg.exe is in the same directory as my php file, but I have the same response giving an absolute path to the ffmpeg.exe file in $cmd.

  ffmpeg is executing fine from the command line.

  I'm running Windows XP, IIS and PHP 5.3.

  EDIT :

  If I run 'ffmpeg -h' I get the help commands, which must indicated that ffmpeg is recognised

  I've increased the PHP memory limit to 1024 - no luck.

• src/flac/utils.c : Make sure get_console_width() returns value > 0.

  8 juillet 2014, par Erik de Castro Lopo

  src/flac/utils.c : Make sure get_console_width() returns value > 0.
  Previous version of get_console_width() may return 0 which will result in
  
  a division by 0 in stats_print_name() :
  	console_width = get_console_width() ;
  
  	len = strlen_console(name)+2 ;
  
  	console_chars_left = console_width  - (len % console_width) ;
  Bug-report : https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=739613
  
  Patch-from : lvqcl <lvqcl.mail@gmail.com>
  

  • [DH] src/flac/utils.c