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• Is there a "legal" review of FFmpeg contributions ?

  20 septembre 2011, par Ronopolis

  I can't find the answer to this at the FFmpeg website.

  If someone submits code to FFmpeg, is the code just reviewed for technical correctness, or is there also a (for lack of better words) legal review ? A review for any potential patent or copyright issues ? If someone contributes to FFmpeg, does the contributor need to sign any kind of "Contributors Statement" or disclaimer ?

• how to install ffmpeg on localhost

  25 mars 2014, par Paul Ledger

  There is a lot of topics on this but after hours of reading i am still getting no where.
  I have found a lot of issues wit this.

  1. people have given links to files that no longer exist
  2. the help people have given refers to files that aren't included with the download

  This is the nearest i have found

  link

  I followed this exactly, after finding a different version of the file broken link

  version I found version available at sourceforge which isn't very helpful.

  Steps as decribed :

  1. unzip
  2. copy ffmpeg.exe somewhere and remember the path for later use
  3. move php_ffmpeg.dll to php extension dir (usually c :\xampp\php\ext)
  4. move all other files to Windows\System32 (except COPYING.GPLv3.txt,
     readme.txt)
  5. add extension=php_ffmpeg.dll to php.ini (usually
     c :\xampp\php\php.ini)
  6. restart apache with fingers crossed questions/answers
     http://www.apachefriends.org/f/viewtopic.php?f=16&t=41913

  But when I restart apache I get the error :

  The program can't because avcodec-51.dll is missing

  AND

  PHP startup : Unable to load dynamic libary php_ffmpeg.dll can't be found

  The php_ffmpeg file is in the apache extention folder and has been declared in the php.ini file. I don't really change many settings in my php.ini file so I just put iy at the top of the extentions, if this is the problem please let me know.

  extension=php_ffmpeg.dll <---first extention added
  extension=php_bz2.dll <---- this was allready there

  If anybody knows an easy way to install this on a localhost I would really appropriate and if I'm having this much trouble on localhost should I bother trying to get this working on my lunix server.

  (I am using xampp on windows and my lunix server is hosted through 1and1 - not my first choice but its for a friends site)

• How to map ffmpeg formats to MIME types and file extensions ?

  17 mai 2017, par odigity

  Anyone know of a reference for mapping ffmpeg format values to MIME types and recommended file extension ? My google attempt failed to turn up anything.

  I did manually put together a small list with guess-work and clues from Wikipedia, IANA, and the Mozilla Developer Network for the subset of formats that I encountered in my video input test collection :

  ffmpeg Format             Extension  MIME Type
  
  ───────────────────────   ─────────  ────────────────────── 
  
  asf                       asf        application/vnd.ms-asf
  
  avi                       avi        video/x-msvideo
  
  flv                       flv        video/x-flv
  
  matroska,webm             webm       video/webm
  
  m4v                       m4v        video/x-m4v
  
  mov,mp4,m4a,3gp,3g2,mj2   mp4        video/mp4
  
  mpeg                      mpeg       video/mpeg
  
  mpegts                    mpeg       video/mpeg
  
  mpegvideo                 mpeg       video/mpeg
  
  ogg                       ogv        video/ogg
  
  matroska                  mkv        video/x-matroska
  
  webm                      webm       video/webm

  No idea if I’ve made the right calls, though.

  (The test files already have file extensions, but I’m operating on the assumption that the extension of a file a user uploads is irrelevant, and that the file should be renamed based on ffprobe and intelligent mapping...)