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  • How do I get videos to upload using carrierwave-video ?

    10 juillet 2016, par Eric

    I tried to follow the instructions on github to upload using carrierwave-video, but get an error that says the file or directory mmpeg -i doesn’t exist.

    The upload path for images is correct, just not the video one.

    I added all of the following code necessary to help solve the error and minified as much as I possibly could.

    This is the video uploader code using carrierwave :

    class VideoUploader < CarrierWave::Uploader::Base

     include CarrierWave::Video
     storage :file

     version :mp4 do
       process :encode_video => [:mp4, resolution: "100x100"]
     end

     def store_dir
       "uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
     end
    end

    This is the movie controller code that handles uploading of videos :

    class MoviesController < ApplicationController
      include MoviesHelper

      def index
         mode "index"
      end

      def show
         mode "show"
      end

      def new
         mode "new"
      end

      def edit
         mode "edit"
      end

      def create
         mode "create"
      end

      def update
         mode "update"
      end

      def destroy
         mode "destroy"
      end

      def review
         mode "review"
      end

      def approve
         mode "approve"
      end

      def deny
         mode "deny"
      end
    end

    This is the model data for the movie that goes with it :

    class Movie < ActiveRecord::Base
     attr_accessible :created_on, :description, :maintenance, :reviewed, :subplaylist_id, :title, :user_id, :video, :remote_video_url
     belongs_to :user
     belongs_to :subplaylist
     mount_uploader :video, VideoUploader
    end

    This is where the movie is supposed to be displayed but it is not working :

    <% provide(:title, "Movie: Where movies are made!") %>
    <% provide(:keywords, "movies, video") %>
    <% provide(:description, "This is the place where users showcase their wonderful video talent.") %>
    <p>&lt;%= notice %></p>
    <h1 class="pageheader">&lt;%= @movie.title %></h1>
    <br />
    <p class="pagetext">&lt;%= video_tag(@movie.video_url.to_s, controls: true, class: "imagebox") %></p>
    <p class="pagetext">&lt;%= @movie.description %></p>
    <p class="pagetext">Created on: &lt;%= @movie.created_on.strftime("%B-%d-%Y") %></p>
    <p class="pagetext">Owner: &lt;%= getType(@movie.user) %>&lt;%= link_to @movie.user.vname, user_path(@movie.user) %></p>
    <br />
    <p class="pagetext">&lt;%= link_to 'Back', mainplaylist_subplaylist_path(@subplaylist.mainplaylist, @movie.subplaylist) %></p>

    This is where the movie new action is :

    &lt;% provide(:title, "Movie: Create new movies here!") %>
    &lt;% provide(:description, "New movies are uploaded only to the site when the movie gets approved.") %>
    <h1 class="pagetextheader">New movie</h1>
    &lt;%= render 'form' %>
    <p class="pagetext">&lt;%= link_to 'Back', mainplaylist_subplaylist_path(@subplaylist.mainplaylist, @subplaylist) %></p>

    This is where the movies forum parameters are :

    &lt;%= form_for([@subplaylist, @movie], :html=>{:multipart => true}) do |f| %>
     &lt;% if @movie.errors.any? %>
       <div>
         <h2>&lt;%= pluralize(@movie.errors.count, "error") %> prohibited this movie from being saved:</h2>

         <ul>
         &lt;% @movie.errors.full_messages.each do |msg| %>
           <li>&lt;%= msg %></li>
         &lt;% end %>
         </ul>
       </div>
     &lt;% end %>
     <br />
     <div class="pagetext">
       &lt;%= f.label :title %><br />
       &lt;%= f.text_field :title %>
     </div>
     <div class="pagetext">
       &lt;%= f.file_field :video %>
     </div>
     <div class="pagetext">
       &lt;%= f.label :remote_video_url, "or video URL" %><br />
       &lt;%= f.text_field :remote_video_url %>
     </div>
     <div class="pagetext">
       &lt;%= f.label :description %><br />
       &lt;%= f.text_area :description %>
     </div>
     <div class="pagetext">
       &lt;%= f.submit %>
     </div>
     <br />
    &lt;% end %>

    This is the movies helper code :

    module MoviesHelper

      def mode(type)
         code = auto_logout
         if(code == true)
            sign_out
            redirect_to root_path
         else
            #Check if Maintenance is turned_on
            allmode = Maintenancemode.find_by_id(1)
            moviemode = Maintenancemode.find_by_id(19)
            mode_turned_on = (allmode.maintenance_on || moviemode.maintenance_on)
            #Determine if any maintenance is on
            if(mode_turned_on)
               #Determine if we are a regular user
               regularUser = (!current_user || !current_user.admin?)
               if(regularUser)
                  #Determine which maintenance mode is on
                  if(allmode.maintenance_on)
                     redirect_to maintenance_path
                  else
                     redirect_to movies_maintenance_path
                  end
               else
                  switch type
               end
            else
               switch type
            end
         end
      end

      private
         def getType(user)
            if(user.admin)
               value = "$"
            else
               typeFound = Usertype.find_by_user_id(user.id)
               if(typeFound)
                  type = typeFound.privilege
                  if(type == "Reviewer")
                     value = "^"
                  elsif(type == "Banned")
                     value = "!"
                  else
                     value = "~"
                  end
               else
                  value = "~"
               end
            end
            return value
         end

         def movieApproved
            movieFound = Movie.find_by_id(params[:movie_id])
            if(movieFound)
               movieFound.reviewed = true
               pouch = Pouch.find_by_user_id(movieFound.user_id)
               pointsForMovie = 10
               pouch.amount += pointsForMovie
               @pouch = pouch
               @pouch.save
               @movie = movieFound
               @movie.save
    #            MovieMailer.movie_approved(@movie, pointsForMovie).deliver
               redirect_to movies_review_path
            else
               render "public/404"
            end
         end

         def movieDenied
            movieFound = Movie.find_by_id(params[:movie_id])
            if(movieFound)
               #Retrieve the user who owns this pet first
               #userEmail = petFound.user.email
               #Send mail to user with link to edit the pet they sent
               @movie = movieFound
               MovieMailer.movie_denied(@movie).deliver
               redirect_to movies_review_path
            else
               render "public/404"
            end
         end

         def createMovie(subplaylistFound)
            newMovie = subplaylistFound.movies.new
            @subplaylist = subplaylistFound
            @movie = newMovie
         end

         def saveMovie(subplaylistFound, logged_in)
            newMovie = subplaylistFound.movies.new(params[:movie])
            newMovie.user_id = logged_in.id
            currentTime = Time.now
            newMovie.created_on = currentTime
            @movie = newMovie
            if(@movie.save)
               @subplaylist = subplaylistFound
    #            MovieMailer.review_movie(@movie).deliver
               flash[:success] = "#{@movie.title} is currently being reviewed please check back later."
               redirect_to subplaylist_movie_path(@subplaylist, @movie)
            else
               render "new"
            end
         end

         def switch(type)
            if(type == "index") #Admin only
               logged_in = current_user
               if(logged_in)
                  if(logged_in.admin)
                     allMovies = Movies.order("created_on desc").page(params[:page]).per(10)
                     @movies = allMovies
                  else
                     redirect_to root_path
                  end
               else
                  redirect_to root_path
               end
            elsif(type == "show")
               movieFound = Movie.find_by_id(params[:id])
               if(movieFound)
                  subplaylistFound = Subplaylist.find_by_id(params[:subplaylist_id])
                  if(subplaylistFound)
                     if(movieFound.reviewed)
                        @subplaylist = subplaylistFound
                        @movie = movieFound
                     else
                        logged_in = current_user
                        if(logged_in)
                           userMatch = ((logged_in.id == movieFound.user_id) || logged_in.admin)
                           if(userMatch)
                              @subplaylist = subplaylistFound
                              @movie = movieFound
                           else
                              redirect_to root_path
                           end
                        else
                           redirect_to root_path
                        end
                     end
                  else
                     redirect_to root_path
                  end
               else
                  render "public/404"
               end
            elsif(type == "new")
               logged_in = current_user
               if(logged_in)
                  subplaylistFound = Subplaylist.find_by_id(params[:subplaylist_id])
                  if(subplaylistFound)
                     if(subplaylistFound.collab_mode)
                        createMovie(subplaylistFound)
                     else
                        userMatch = (logged_in.id == subplaylistFound.user_id)
                        if(userMatch)
                           createMovie(subplaylistFound)
                        else
                           redirect_to root_path
                        end
                     end
                  else
                     render "public/404"
                  end
               else
                  redirect_to root_path
               end
            elsif(type == "create")
               logged_in = current_user
               if(logged_in)
                  subplaylistFound = Subplaylist.find_by_id(params[:subplaylist_id])
                  if(subplaylistFound)
                     if(subplaylistFound.collab_mode)
                        saveMovie(subplaylistFound, logged_in)
                     else
                        userMatch = (logged_in.id == subplaylistFound.user_id)
                        if(userMatch)
                           saveMovie(subplaylistFound, logged_in)
                        else
                           redirect_to root_path
                        end
                     end
                  else
                     render "public/404"
                  end
               else
                  redirect_to root_path
               end
            elsif(type == "edit")
               logged_in = current_user
               if(logged_in)
                  movieFound = Movie.find_by_id(params[:id])
                  if(movieFound)
                     userMatch = (logged_in.id == movieFound.user_id)
                     if(userMatch)
                        subplaylistFound = Subplaylist.find_by_id(movieFound.subplaylist_id)
                        if(subplaylistFound)
                           @subplaylist = subplaylistFound
                           @movie = movieFound
                        else
                           render "public/404"
                        end
                     else
                        redirect_to root_path
                     end
                  else
                     render "public/404"
                  end
               else
                  redirect_to root_path
               end
            elsif(type == "update")
               logged_in = current_user
               if(logged_in)
                  movieFound = Movie.find_by_id(params[:id])
                  if(movieFound)
                     userMatch = (logged_in.id == movieFound.user_id)
                     if(userMatch)
                        subplaylistFound = Subplaylist.find_by_id(movieFound.subplaylist_id)
                        if(subplaylistFound)
                           @movie = movieFound
                           if(@movie.update_attributes(params[:movie]))
                              @subplaylist = subplaylistFound
                              flash[:success] = 'Movie was successfully updated.'
                              redirect_to subplaylist_movie_path(@subplaylist, @movie)
                           else
                              render "edit"
                           end
                        else
                           render "public/404"
                        end
                     else
                        redirect_to root_path
                     end
                  else
                     render "public/404"
                  end
               else
                  redirect_to root_path
               end
            elsif(type == "destroy")
               logged_in = current_user
               if(logged_in)
                  movieFound = Movie.find_by_id(params[:id]) #Need to move this below the admin section to protect it
                  if(movieFound)
                     if(logged_in.admin)
                        subplaylistFound = Subplaylist.find_by_id(movieFound.subplaylist_id)
                        if(subplaylistFound)
                           @movie = movieFound
                           @subplaylist = subplaylistFound
                           @movie.destroy
                           redirect_to mainplaylist_subplaylist_path(@subplaylist.mainplaylist, @subplaylist)
                        else
                           render "public/404"
                        end
                     else
                        redirect_to root_path
                     end
                  else
                     render "public/404"
                  end
               else
                  redirect_to root_path
               end
            elsif(type == "review") #Admin
               logged_in = current_user
               if(logged_in)
                  if(logged_in.admin)
                     allMovies = Movie.all
                     moviesToReview = allMovies.select{|movie| !movie.reviewed}
                     @movies = Kaminari.paginate_array(moviesToReview).page(params[:page]).per(10)
                  else
                     typeFound = Usertype.find_by_user_id(logged_in.id)
                     if(typeFound.privilege == "Reviewer")
                        allMovies = Movie.all
                        moviesToReview = allMovies.select{|movie| !movie.reviewed}
                        @movies = Kaminari.paginate_array(moviesToReview).page(params[:page]).per(10)
                     else
                        redirect_to root_path
                     end
                  end
               else
                  redirect_to root_path
               end
            elsif(type == "approve") #Admin
               logged_in = current_user
               if(logged_in)
                  if(logged_in.admin)
                     movieApproved
                  else
                     typeFound = Usertype.find_by_user_id(logged_in.id)
                     if(typeFound.privilege == "Reviewer")
                        movieApproved
                     else
                        redirect_to root_path
                     end
                  end
               else
                  redirect_to root_path
               end
            elsif(type == "deny") #Admin
               logged_in = current_user
               if(logged_in)
                  if(logged_in.admin)
                     movieDenied
                  else
                     typeFound = Usertype.find_by_user_id(logged_in.id)
                     if(typeFound.privilege == "Reviewer")
                        movieDenied
                     else
                        redirect_to root_path
                     end
                  end
               else
                  redirect_to root_path
               end
            end
         end
    end

    This is the subplaylists show code :

    &lt;% provide(:title, "Subplaylist: The place where users videos gets uploaded to!") %>
    &lt;% provide(:keywords, "user, video, uploaded") %>
    &lt;% provide(:description, "Allows the categorization of various videos that the user submitted successfully.") %>
    <p>&lt;%= notice %></p>
    <h1 class="pageheader">&lt;%= @subplaylist.title %></h1>
    <br />
    <p class="pagetext">&lt;%= @subplaylist.description %></p>
    <br />
    <div class="pagebox">&lt;%= paginate @movies %></div>





    <br />
    <div class="pagetext">
      &lt;% @movies.each_with_index do |movie, index| %>
         <div class="container">
            <div class="inner">
               <div class="inner">&lt;%= link_to movie.title, subplaylist_movie_path(@subplaylist, movie) %></div>
               &lt;% if current_user &amp;&amp; (current_user.id == movie.user_id || current_user.admin? )%>
                  <div class="inner">&lt;%= button_to 'Edit', edit_subplaylist_movie_path(@subplaylist, movie), method: :get %></div>
                  <div class="inner">&lt;%= button_to 'Destroy', [@subplaylist, movie], method: :delete, data: { confirm: 'Are you sure?' } %></div>
               &lt;% end %>
               <p>&lt;%= video_tag movie.video_url(:thumb).to_s, controls: true %></p>
            </div>
            <br />
            <p>Created on: &lt;%= movie.created_on.strftime("%B-%d-%Y") %></p>
            <p>Owner: &lt;%= getType(movie.user) %>&lt;%= link_to movie.user.vname, user_path(movie.user) %></p>
         </div>
         &lt;% if ((index + 1) % 3) == 0 %>
            <br />
            <br />
         &lt;% end %>
      &lt;% end %>
    </div>
    <br />
    &lt;% if current_user %>
      <p class="pagetext">&lt;%= link_to "New Movie", new_subplaylist_movie_path(@subplaylist) %></p>
      <br />
    &lt;% end %>
    <p class="pagetext">&lt;%= link_to 'Back', user_mainplaylist_path(@mainplaylist.user.vname, @subplaylist.mainplaylist.title) %></p>

    This is the subplaylists model :

    class Subplaylist &lt; ActiveRecord::Base
      attr_accessible :title, :description, :collab_mode
      belongs_to :user
      belongs_to :mainplaylist
      has_many :movies, :foreign_key => "subplaylist_id", :dependent => :destroy
      VALID_NAME = /\A[A-Za-z][A-Za-z1-9][A-Za-z1-9 ]+\z/
      validates :title, presence: true, format: {with: VALID_NAME}
      validates :description, presence: true
    end

    This is the subplaylists controller code :

    class SubplaylistsController &lt; ApplicationController
      include SubplaylistsHelper

      def index
         mode "index"
      end

      def show
         mode "show"
      end

      def new
         mode "new"
      end

      def edit
         mode "edit"
      end

      def create
         mode "create"
      end

      def update
         mode "update"
      end

      def destroy
         mode "destroy"
      end
    end

    This is the subplaylist helper code :

    module SubplaylistsHelper

      def mode(type)
         code = auto_logout
         if(code == true)
            sign_out
            redirect_to root_path
         else
            #Check if Maintenance is turned_on
            allmode = Maintenancemode.find_by_id(1)
            subplaylistmode = Maintenancemode.find_by_id(18)
            mode_turned_on = (allmode.maintenance_on || subplaylistmode.maintenance_on)
            #Determine if any maintenance is on
            if(mode_turned_on)
               #Determine if we are a regular user
               regularUser = (!current_user || !current_user.admin?)
               if(regularUser)
                  #Determine which maintenance mode is on
                  if(allmode.maintenance_on)
                     redirect_to maintenance_path
                  else
                     redirect_to subplaylists_maintenance_path
                  end
               else
                  switch type
               end
            else
               switch type
            end
         end
      end

      private
         def getType(user)
            if(user.admin)
               value = "$"
            else
               typeFound = Usertype.find_by_user_id(user.id)
               if(typeFound)
                  type = typeFound.privilege
                  if(type == "Reviewer")
                     value = "^"
                  elsif(type == "Banned")
                     value = "!"
                  else
                     value = "~"
                  end
               else
                  value = "~"
               end
            end
            return value
         end

         def switch(type)
            if(type == "show")
               subplaylistFound = Subplaylist.find_by_id(params[:id])
               if(subplaylistFound)
                  mainplaylistFound = Mainplaylist.find_by_title(params[:mainplaylist_id])
                  if(mainplaylistFound)
                     playlistMatch = (subplaylistFound.mainplaylist_id == mainplaylistFound.id)
                     if(playlistMatch)
                        @mainplaylist = mainplaylistFound
                        @subplaylist = subplaylistFound
                        subplaylistMovies = @subplaylist.movies.all
                        reviewedMovies = subplaylistMovies
                        if(subplaylistMovies.count > 0)
                           reviewedMovies = subplaylistMovies.select{|movie| movie.reviewed}
                        end
                        @movies = Kaminari.paginate_array(reviewedMovies).page(params[:page]).per(10)
                     else
                        redirect_to root_path
                     end
                  else
                     render "public/404"
                  end
               else
                  redirect_to root_path
               end
            elsif(type == "destroy")
               logged_in = current_user
               if(logged_in)
                  subplaylistFound = Subplaylist.find_by_id(params[:id]) #Need to move this below the admin section to protect it
                  if(subplaylistFound)
                     if(logged_in.admin)
                        mainplaylistFound = Mainplaylist.find_by_id(subplaylistFound.mainplaylist_id)
                        if(mainplaylistFound)
                           @subplaylist = subplaylistFound
                           @mainplaylist = mainplaylistFound
                           @subplaylist.destroy
                           redirect_to mainplaylist_subplaylists_path(@mainplaylist)
                        else
                           render "public/404"
                        end
                     else
                        redirect_to root_path
                     end
                  else
                     render "public/404"
                  end
               else
                  redirect_to root_path
               end
            end
         end
    end

    This is the User model :

    class User &lt; ActiveRecord::Base
      attr_accessible :email, :first_name, :last_name, :login_id, :vname, :password, :password_confirmation, :avatar
      has_secure_password
      mount_uploader :avatar, AvatarUploader
      before_save { |user| user.email = user.email.downcase }
      before_save { |user| user.first_name = user.first_name.humanize }

      #key
      has_one :sessionkey, :foreign_key => "user_id", :dependent => :destroy
      has_one :usertype, :foreign_key => "user_id", :dependent => :destroy

      #Video section
      has_many :mainplaylists, :foreign_key => "user_id", :dependent => :destroy
      has_many :subplaylists, :foreign_key => "user_id", :dependent => :destroy
      has_many :movies, :foreign_key => "user_id", :dependent => :destroy

      #validates :first_name, presence: true
      VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i
      VALID_NAME_REGEX = /\A[a-z][a-z][a-z]+\z/i
      VALID_VNAME_REGEX = /\A[A-Za-z][A-Za-z][A-Za-z][A-Za-z0-9 ]+([-][A-Za-z0-9 ]+)?\z/
      VALID_PASSWORD_REGEX = /\A[A-Za-z0-9!][A-Za-z0-9!][A-Za-z0-9!][A-Za-z0-9!][A-Za-z0-9!][A-Za-z0-9!]+\z/
      validates :first_name, presence: true, format: { with: VALID_NAME_REGEX}
      validates :last_name, presence: true, format: { with: VALID_NAME_REGEX}
      validates :email, presence: true, format: { with: VALID_EMAIL_REGEX}
      validates :login_id, presence: true, format: { with: VALID_VNAME_REGEX}, uniqueness: { case_sensitive: false}
      validates :vname, presence: true, format: { with: VALID_VNAME_REGEX}, uniqueness: { case_sensitive: false}
      validates :password, length: {minimum: 6}#, format: { with: VALID_PASSWORD_REGEX}
      validates :password_confirmation, presence: true #, format: { with: VALID_PASSWORD_REGEX}

      def to_param
         vname
      end
    end

    This is the sessionkey model :

    class Sessionkey &lt; ActiveRecord::Base
     belongs_to :user
    end

    This is the usertype model :

    class Usertype &lt; ActiveRecord::Base
     attr_accessible :privilege, :user_id #Only priviledge will be changeable
     belongs_to :user
    end

    This is the error message :

    No such file or directory - ffmpeg -i /home/eric/Projects/Local/Lduelingpets/Trial/public/uploads/tmp/1466811951-3149-2702/mp4_TrialMovies.mp4
  • FFmpeg teletex current time in output

    13 juin 2019, par HPa

    I take subtitles from teletext page from my own dvbt stream.
    Subtitles are displayed for some local information services and movies
    I need to change the default output :

    1  
    00:00:00,040 --> 1193:02:47,335  
    To zna¾ j@ ksi@dz czy nie?

    2  
    00:00:04,000 --> 1193:02:51,295  
    Wygl@da na to, ¼e Kornaccy  
    wynaj—li babk— z brzuchem.

    3  
    00:00:08,440 --> 1193:02:55,735  
    Jak to si— nazywa? Surygatka.  
    Surogatka.

    to output with current system time :

    15:40:21,040 --> 1193:02:47,335  
    To zna¾ j@ ksi@dz czy nie?

    15:40:24,000 --> 1193:02:51,295  
    Wygl@da na to, ¼e Kornaccy  
    wynaj—li babk— z brzuchem.

    15:40:30,440 --> 1193:02:55,735  
    Jak to si— nazywa? Surygatka.  
    Surogatka.

    Command :

    ffmpeg -txt_format text -txt_page 777 -i http://localhost:11000/bysid/1 output.srt

  • build video from images with a bash for loop using ffmpeg

    10 septembre 2021, par TheCodeNovice

    I am trying to take 50K images and turn them into a movie using ffmpeg. I am running this on a HPC setup, hence the slurm commands. My attempt does not work since I am running into a hard limit due to the shear volume of images. I cannot just list a start number since the pipeline will reject some images so I do not have a proper sequence.

    &#xA;

    I know a loop could circumvent both issues but I am not sure how to use that with ffmpeg so that it builds one long movie.

    &#xA;

    The cat command has worked for shorter movies but i just have too many images now.

    &#xA;

    #!/bin/bash&#xA;&#xA;img_dir=&#x27;foo/bar/1/2/123456&#x27;&#xA;folder=&#x27;fooo&#x27;&#xA;#BATCH -p general&#xA;#SBATCH -N 1&#xA;#SBATCH -t 03-00:00:00&#xA;#SBATCH --mem=8g&#xA;#SBATCH -n 1&#xA;#SBATCH --mail-type=BEGIN,REQUEUE,END,FAIL,REQUEUE   &#xA;#SBATCH --mail-user=<snip>&#xA;&#xA;singularity exec /$img_dir/foo_container cat /$img_dir/processed_images/$folder/*.jpeg | ffmpeg -f image2pipe -i pipe:.jpeg -vf "crop=trunc(iw/2)*2:trunc(ih/2)*2" /$img_dir/processed_images/$folder/$folder.mp4&#xA;&#xA;</snip>

    &#xA;