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• Paperclip-ffmpeg not working on Rails

  28 juillet 2013, par Lee7355512727

  I installed Paperclip-ffmpeg and tried to upload a flv file, but it seems there are some problems converting the file.

  I added Paperclip.options[:command_path] = "/usr/bin/" (I got the path by using which ffmpeg) to my config/environments/development.rb file, following the instructions on the paperclip-ffmpeg github page.

  Here is my model subquestion.rb, which contains a paperclip field called qflv :

  class Subquestion < ActiveRecord::Base
  
      belongs_to :question
  
      has_many :qimages , :dependent =>  :destroy
  
  
  
      has_attached_file :qflv, styles: {
  
          medium: {geometry: "640*480", format: 'flv'},
  
          thumb: {geometry: "100*100#", format: 'jpg', time: 10}
  
      }, processors: [:ffmpeg]

  And here is my _subquestion_fields.html.erb file, where users upload videos :

  <%= f.file_field :qflv %>

  _subquestion_fields.html.erb is rendered by question.html.erb file :

  <%= nested_form_for @question, :url => {:action => 'create_question'} do |f| %>
  
         <%= f.fields_for :subquestions do |builder| %>
  
         <%= render 'subquestion_fields', :f => builder %>

  And here is part of the error message :

  WARNING: gnome-keyring:: couldn't connect to: /run/user/li/keyring-CsW4u8/pkcs11: No such file or directory
  
  ffmpeg version 0.8.6-6:0.8.6-1ubuntu2, Copyright (c) 2000-2013 the Libav developers
  
    built on Mar 30 2013 22:23:21 with gcc 4.7.2
  
  *** THIS PROGRAM IS DEPRECATED ***
  
  This program is only provided for compatibility and will be removed in a future release. Please use avconv instead.
  
  [flv @ 0x8ba50a0] Estimating duration from bitrate, this may be inaccurate
  
  Input #0, flv, from '/tmp/03000201005171FC8274A20623ECA86B119768-56C7-7A62-DB7A-A4B599F64EE720130727-1837-13757l9.flv':
  
    Metadata:
  
      metadatacreator : modified by youku.com in 20111202
  
      hasKeyframes    : true
  
      hasVideo        : true
  
      hasAudio        : true
  
      hasMetadata     : true
  
    Duration: 00:05:25.03, start: 0.000000, bitrate: N/A
  
      Stream #0.0: Video: h264 (High), yuv420p, 448x336 [PAR 1:1 DAR 4:3], 15 tbr, 1k tbn, 30 tbc
  
      Stream #0.1: Audio: aac, 44100 Hz, stereo, s16
  
  Incorrect frame size
  
  Failed to set value '0x0' for option 's'
  
  WARNING: gnome-keyring:: couldn't connect to: /run/user/li/keyring-CsW4u8/pkcs11: No such file or directory
  
  ffmpeg version 0.8.6-6:0.8.6-1ubuntu2, Copyright (c) 2000-2013 the Libav developers
  
    built on Mar 30 2013 22:23:21 with gcc 4.7.2
  
  *** THIS PROGRAM IS DEPRECATED ***
  
  This program is only provided for compatibility and will be removed in a future release. Please use avconv instead.
  
  [flv @ 0x86490a0] Estimating duration from bitrate, this may be inaccurate
  
  Input #0, flv, from '/tmp/03000201005171FC8274A20623ECA86B119768-56C7-7A62-DB7A-A4B599F64EE720130727-1837-13757l9.flv':
  
    Metadata:
  
      metadatacreator : modified by youku.com in 20111202
  
      hasKeyframes    : true
  
      hasVideo        : true
  
      hasAudio        : true
  
      hasMetadata     : true
  
    Duration: 00:05:25.03, start: 0.000000, bitrate: N/A
  
      Stream #0.0: Video: h264 (High), yuv420p, 448x336 [PAR 1:1 DAR 4:3], 15 tbr, 1k tbn, 30 tbc
  
      Stream #0.1: Audio: aac, 44100 Hz, stereo, s16
  
  Incompatible pixel format 'yuv420p' for codec 'mjpeg', auto-selecting format 'yuvj420p'
  
  [buffer @ 0x864c180] w:448 h:336 pixfmt:yuv420p
  
  [scale @ 0x8653840] w:448 h:336 fmt:yuv420p -> w:448 h:336 fmt:yuvj420p flags:0x4
  
  [crop @ 0x864dc20] w:448 h:336 -> w:0 h:0
  
  [crop @ 0x864dc20] Invalid too big or non positive size for width '0' or height '0'
  
  Error opening filters!
  
  
  
  
  
  Started POST "/test_geisinger/roots/questions/create" for 127.0.0.1 at 2013-07-27 23:12:31 -0400
  
  Processing by RootsController#create_question as HTML
  
    Parameters: {"utf8"=>"✓", "authenticity_token"=>"EiJk5dBf1nL96BtUiKc0qALCg0Bj9mQ0dx9IodfYdO0=", "question"=>{"explanation"=>"flv", "choice_id"=>"8", "correct_selection_id"=>"32", "quiz_id"=>"10", "subquestions_attributes"=>{"0"=>{"subquestion_type"=>"flv", "_destroy"=>"false", "qflv"=>#x-flv\r\n", @tempfile=#tmp/RackMultipart20130727-1837-1f6g2s0>>}}}, "commit"=>"Submit"}
  
  [paperclip] [ffmpeg] ffmpeg -i "/tmp/03000201005171FC8274A20623ECA86B119768-56C7-7A62-DB7A-A4B599F64EE720130727-1837-13757l9.flv" 2>&1
  
  [paperclip] [ffmpeg] Command Success
  
  [paperclip] [ffmpeg] Making...
  
  [paperclip] [ffmpeg] Building Destination File: '03000201005171FC8274A20623ECA86B119768-56C7-7A62-DB7A-A4B599F64EE720130727-1837-13757l9' + 'flv'
  
  [paperclip] [ffmpeg] Destination File Built
  
  [paperclip] [ffmpeg] Adding Geometry
  
  [paperclip] [ffmpeg] Extracting Target Dimensions
  
  [paperclip] [ffmpeg] Target Size is Available
  
  [paperclip] [ffmpeg] Keeping Aspect Ratio
  
  [paperclip] [ffmpeg] Resize
  
  [paperclip] [ffmpeg] Convert Options: 0x0
  
  [paperclip] [ffmpeg] Adding Format
  
  [paperclip] [ffmpeg] Adding Source
  
  [paperclip] [ffmpeg] Building Parameters
  
  [paperclip] [ffmpeg] -i :source -s 0x0 -y :dest
  
  Command :: ffmpeg -i '/tmp/03000201005171FC8274A20623ECA86B119768-56C7-7A62-DB7A-A4B599F64EE720130727-1837-13757l9.flv' -s 0x0 -y '/tmp/03000201005171FC8274A20623ECA86B119768-56C7-7A62-DB7A-A4B599F64EE720130727-1837-13757l920130727-1837-11o3enh.flv'
  
  [paperclip] An error was received while processing: #tmp/03000201005171FC8274A20623ECA86B119768-56C7-7A62-DB7A-A4B599F64EE720130727-1837-13757l9.flv' -s 0x0 -y '/tmp/03000201005171FC8274A20623ECA86B119768-56C7-7A62-DB7A-A4B599F64EE720130727-1837-13757l920130727-1837-11o3enh.flv'' returned 1. Expected 0

  There might be some problems with pkcs11 so I found this article :

  https://bugzilla.redhat.com/show_bug.cgi?id=783568

  But I could not find /etc/xdg/autostart/gnome-keyring-*.desktop.

  Thank you !

• How to detect black screen at play time in ijkplayer ?

  31 août 2019, par seaguest

  I am using ijkplayer,I am wondering if it is possible to know if current player is black screen at play time ?

  because some old model mobiles do not support hard-decode and get black screen, I need to know this case then switch to soft-decode.

• FFMEG : run code after complete conversion

  26 octobre 2019, par Сергей Барахтенко

  There is a code that runs FFMPEG

  shell_exec($this->config->item('ffmpeg') . ' -i ' . $path . ' ' . $cmd . ' 1>' . $folder . '/log.txt 2>&1 ');

  And there is the following line, which should, taking into account the peculiarities of the PHP language, work out immediately after shell_exec

  $params = array(
  
      'status' => 'ready'
  
  );
  
  $result = $this->model->editVideo($video_key, $params); 

  This line simply updates the status of the video in the database

  My question is, why doesn’t the further php code work after completion shell_exec ? What could be the catch ?