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• Révision 17018 : ne pas prendre en compte $row() dans la signature du formulaire_editer_auteur ca...

  26 janvier 2011, par cedric@yterium.com

  Repare le bug de l’absence d’erreur au premier post (mot de passe trop court ou autre)

• Permission denied when trying to call ffmpeg on heroku

  1er décembre 2013, par chuck w

  I have a rails 3.1 web app on Heroku (cedar) that that allows users to post stories with photo and video attachments using the paperclip gem (3.5.1). Uploads are stored on s3. This has been working 100% for many months.

  I have recently added video transcoding and thumbnailing to my dev machine with the paperclip-ffmpeg gem (1.0.1) and ffmpeg running locally. This is also working.

  I've followed these instructions to build and install ffmpeg on heroku, and I've altered my Heroku app's path so that it reads as follows :

  PATH:   bin:vendor/ffmpeg/bin:vendor/bundle/ruby/1.9.1/bin:/usr/local/bin:/usr/bin:/bin

  and my app's LD_LIBRARY_PATH so that it reads as follows :

  LD_LIBRARY_PATH:             vendor/ffmpeg/lib:/usr/local/lib

  Finally, I've vendored ffmpeg into my app with the following structure :

  

  When I commit and push these changes to Heroku and POST a story that has a video I get the following output on Heroku logs :

  2013-11-30T22:51:46.711010+00:00 app[web.1]: Started POST "/stories" for 71.80.218.93 at        
  
  2013-11-30 22:51:46 +0000
  
  2013-11-30T22:51:47.023119+00:00 app[web.1]: Cocaine::ExitStatusError (Command 'ffprobe 
  
  "/tmp/sideways video20131130-2-14w1q4j.mp4" 2>&1' returned 126. Expected 0
  
  2013-11-30T22:51:47.023119+00:00 app[web.1]: Here is the command output:
  
  2013-11-30T22:51:47.023119+00:00 app[web.1]: 
  
  2013-11-30T22:51:47.023119+00:00 app[web.1]:   app/controllers/stories_controller.rb:11:in     
  
  `create'
  
  2013-11-30T22:51:47.023119+00:00 app[web.1]: 
  
  2013-11-30T22:51:47.023119+00:00 app[web.1]: 
  
  2013-11-30T22:51:47.019228+00:00 heroku[router]: at=info method=POST path=/stories     
  
  host=myapp.herokuapp.com fwd="71.80.218.93" dyno=web.1 connect=1ms    
  
  service=3130ms status=500 bytes=754
  
  2013-11-30T22:51:47.023119+00:00 app[web.1]: 
  
  2013-11-30T22:51:47.023600+00:00 app[web.1]: cache: [POST /stories] invalidate, pass
  
  2013-11-30T22:51:47.023119+00:00 app[web.1]: sh: ffprobe: Permission denied
  
  2013-11-30T22:51:47.023119+00:00 app[web.1]: ):

  Also, running the console command : heroku run "ffmpeg -version" -a myapp
  returns :

  Running ffmpeg -version attached to terminal... up, run.6591
  
  bash: vendor/ffmpeg/bin/ffmpeg: Permission denied

  Here is my Post model paperclip set-up :

  class Post < ActiveRecord::Base
  
  
  
    attr_accessible :contents, :photo, :video
  
  
  
    belongs_to    :story, :touch => true
  
    belongs_to    :user, :touch => true
  
  
  
    has_attached_file :photo, 
  
                      :styles => { 
  
                        :thumb => ["100x140>", :jpg],
  
                        :medium => ["400x400>", :jpg],
  
                        :large => ["800x800>", :jpg]
  
                      },
  
                      :processors => [:thumbnail],
  
                      :storage => :s3,
  
                      :s3_credentials => "#{Rails.root.to_s}/config/s3.yml",
  
                      :path => "/:style/:id/:filename"
  
  
  
    has_attached_file :video, 
  
                      :storage => :s3,
  
                      :s3_credentials => "#{Rails.root.to_s}/config/s3.yml",
  
                      :path => "/video/:id/:filename",
  
                      :styles => {
  
                        :thumb => { :geometry => "140x100#", :format => 'jpg', :time => 10 },
  
                        :medium => { :geometry => "480x360", :format => 'mp4' },
  
                      }, :processors => [:ffmpeg]

  Why am I getting these "permission denieds" ? Any help would be greatly appreciated !!!

• FFmpeg move the header to the front of the file [duplicate]

  19 octobre 2018, par PramukaD

  This question already has an answer here :

  • Post processing in ffmpeg to move ’moov atom’ in MP4 files (qt-faststart)
    
    2 answers
    

  I transcode H.264 files in a MP4 container using FFmpeg, the header will be placed in the end and needs to be moved.So, how do I move the header from the end of the file to the beginning of the file ?I need Objective C code.