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• Unable to convert .mp3 to .m4a using ffmpeg [closed]

  4 mai 2013, par rahulg

  I am fully aware the legal constraints in using libfaac but this is just for my testing purpose.

  I have compiled ffmpeg with faac enabled. So when I tried to convert an .mp3 to a .m4a here is the error that I am getting. Please provide a resolution to this problem. I tried it on two different sources of .mp3, still I am getting the same error.

  [user@ip-10-161-13-26 ~]$ ffmpeg  -i Kalimba.mp3 -c:a libfaac Kalimba.m4a
  
  ffmpeg version 0.11.1 Copyright (c) 2000-2012 the FFmpeg developers
  
    built on May  4 2013 09:33:27 with gcc 4.4.6 20120305 (Red Hat 4.4.6-4)
  
    configuration: --enable-libfaac --enable-nonfree --disable-yasm
  
    libavutil      51. 54.100 / 51. 54.100
  
    libavcodec     54. 23.100 / 54. 23.100
  
    libavformat    54.  6.100 / 54.  6.100
  
    libavdevice    54.  0.100 / 54.  0.100
  
    libavfilter     2. 77.100 /  2. 77.100
  
    libswscale      2.  1.100 /  2.  1.100
  
    libswresample   0. 15.100 /  0. 15.100
  
  [mp3 @ 0x2464680] Header missing
  
  [mp3 @ 0x2463100] max_analyze_duration 5000000 reached at 5015510
  
  [mp3 @ 0x2463100] Estimating duration from bitrate, this may be inaccurate
  
  Input #0, mp3, from 'Kalimba.mp3':
  
    Metadata:
  
      publisher       : Ninja Tune
  
      track           : 1
  
      album           : Ninja Tuna
  
      artist          : Mr. Scruff
  
      album_artist    : Mr. Scruff
  
      title           : Kalimba
  
      genre           : Electronic
  
      composer        : A. Carthy and A. Kingslow
  
      date            : 2008
  
    Duration: 00:05:50.60, start: 0.000000, bitrate: 191 kb/s
  
      Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16, 192 kb/s
  
      Stream #0:1: Video: mjpeg, yuvj420p, 512x512, 90k tbr, 90k tbn, 90k tbc
  
      Metadata:
  
        title           : thumbnail
  
        comment         : Cover (front)
  
  Output #0, ipod, to 'Kalimba.m4a':
  
    Metadata:
  
      publisher       : Ninja Tune
  
      track           : 1
  
      album           : Ninja Tuna
  
      artist          : Mr. Scruff
  
      album_artist    : Mr. Scruff
  
      title           : Kalimba
  
      genre           : Electronic
  
      composer        : A. Carthy and A. Kingslow
  
      date            : 2008
  
      Stream #0:0: Video: none, q=2-31, 128 kb/s, 90k tbn
  
      Metadata:
  
        title           : thumbnail
  
        comment         : Cover (front)
  
      Stream #0:1: Audio: none, 0 channels, 128 kb/s
  
  Stream mapping:
  
    Stream #0:1 -> #0:0 (mjpeg -> ?)
  
    Stream #0:0 -> #0:1 (mp3 -> libfaac)
  
  Encoder (codec none) not found for output stream #0:0

  MP3 file is at http://db.tt/HtpEBpFU

  Also while using Faac independently I get this weird error for any file.

  Freeware Advanced Audio Coder
  
  FAAC 1.28
  
  
  
  Couldn't open input file sample.mp3

• configure : use pkg-config for libgme, if available

  23 juin 2017, par Ricardo Constantino

  configure : use pkg-config for libgme, if available
  The pkg-config file is relatively new (2013), so some distros might
  
  not have it yet. And the -lstdc++ being required for the static lib
  
  is only present since the last release in December 2016.
  

  • [DH] configure

• "File doesn't exist" - streamio FFMPEG on screenshot after create method

  3 mai 2013, par dodgerogers747

  I have videos being directly uploaded to S3 using Amazon's CORS configuration. Videos are uploaded via a dedicated S3 form, once they have been uploaded successfully the URL of the video is appended to the @video.file hidden_field via javascript and then the video saves.

  I can't get this after_save method to work which takes a screenshot of the video and saves it to S3 via carrierwave after the video has been saved as a rails object. ( It was previously working using a carrierwave video upload instance )

  It errors out withErrno::ENOENT - No such file or directory - the file 'http://bucket-name.s3.amazonaws.com/uploads/video/file/secure-random-hex/video_name.m4v' does not exist: I have tried running this method as a class method to call it from the console but it always comes back with the same error, even though the video exists.

  My bucket is set to public, read and write. How come it doesn't think the file exists ?

  If anyone needs more code just shout, thanks in advance.

  application trace

  Started POST "/videos" for 127.0.0.1 at 2013-05-03 10:48:07 -0700
  
  Processing by VideosController#create as JS
  
    Parameters: {"utf8"=>"✓", "authenticity_token"=>"MAHxrVcmPDtVIMfDWZBwL0YnzaAaAe1PTGip5M4OVoY=", "video"=>{"user_id"=>"5", "file"=>"http://bucket-name.s3.amazonaws.com/uploads/video/file/secure-random-hex/video.m4v"}}
  
    User Load (0.3ms)  SELECT `users`.* FROM `users` WHERE `users`.`id` = 5 LIMIT 1
  
     (0.1ms)  BEGIN
  
    SQL (20.5ms)  INSERT INTO `videos` (`created_at`, `file`, `question_id`, `screenshot`, `updated_at`, `user_id`) VALUES ('2013-05-03 17:48:07', 'http://teebox-network.s3.amazonaws.com/uploads/video/file/secure-random-hex/video.m4v', NULL, NULL, '2013-05-03 17:48:07', 5)
  
     (44.0ms)  ROLLBACK
  
  Completed 500 Internal Server Error in 71ms
  
  
  
  Errno::ENOENT - No such file or directory - the file 'http://teebox-network.s3.amazonaws.com/uploads/video/file/secure-random-hex/video.m4v' does not exist:
  
    (gem) streamio-ffmpeg-0.9.0/lib/ffmpeg/movie.rb:10:in `initialize'
  
    app/models/video.rb:25:in `new'
  
    app/models/video.rb:25:in `take_screenshot'

  video.rb

    attr_accessible :user_id, :question_id, :file, :screenshot
  
    belongs_to :question
  
    belongs_to :user
  
  
  
    default_scope order('created_at DESC')
  
  
  
    after_create :take_screenshot
  
  
  
    mount_uploader :screenshot, ImageUploader
  
  
  
    validates_presence_of :user_id, :file
  
  
  
    def take_screenshot
  
      FFMPEG.ffmpeg_binary = '/opt/local/bin/ffmpeg'
  
      movie = FFMPEG::Movie.new("#{self.file}")
  
      self.screenshot = movie.screenshot("#{Rails.root}/public/uploads/tmp/screenshots/#{File.basename(self.file)}.jpg", seek_time: 2 )
  
      self.save!
  
    end

  videos/_form.html.erb

  <form action="http://bucket-name.s3.amazonaws.com" data-remote="true" class="direct-upload" enctype="multipart/form-data" method="post">
  
    <input type="hidden" />
  
    <input type="hidden" value="ACCESS_KEY" />
  
    <input type="hidden" value="public-read" />
  
    <input type="hidden" />
  
    <input type="hidden" />
  
    <input type="hidden" value="201" />
  
    <input type="file" />
  
  </form>
  
  
  
  &lt;%= form_for @video, html: { multipart: true, id: "new_video" }, remote: true do |f| %>
  
          &lt;% if @video.errors.any? %>
  
      <div>
  
      <h2>&lt;%= pluralize(@video.errors.count, "error") %> prohibited this post from being saved:</h2>
  
  
  
    <ul>
  
      &lt;% @video.errors.full_messages.each do |msg| %>
  
          <li>&lt;%= msg %></li>
  
          &lt;% end %>
  
      </ul>
  
      </div>
  
  &lt;% end %>
  
  
  
      &lt;%= f.hidden_field :user_id, value: current_user.id %>
  
      &lt;%= f.hidden_field :file %><br />
  
  
  
      &lt;% end %>

  ImageUploader

  class ImageUploader < CarrierWave::Uploader::Base
  
  
  
    include CarrierWave::RMagick
  
  
  
     include Sprockets::Helpers::RailsHelper
  
     include Sprockets::Helpers::IsolatedHelper
  
  
  
    storage :fog
  
  
  
    before :store, :remember_cache_id
  
    after :store, :delete_tmp_dir
  
  
  
      def cache_dir
  
        Rails.root.join('public/uploads/tmp/') 
  
      end
  
  
  
      def remember_cache_id(new_file)
  
        @cache_id_was = cache_id
  
      end
  
  
  
      def delete_tmp_dir(new_file)
  
        if @cache_id_was.present? && @cache_id_was =~ /\A[\d]{8}\-[\d]{4}\-[\d]+\-[\d]{4}\z/
  
          FileUtils.rm_rf(File.join(root, cache_dir, @cache_id_was))
  
        end
  
      end
  
  
  
    process resize_and_pad: [306, 150, '#000']
  
  
  
    def store_dir
  
      "uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
  
    end
  
  
  
    def extension_white_list
  
      %w(jpg)
  
      # %w(ogg ogv 3gp mp4 m4v webm mov)
  
    end