Ruby on Rails

Sorry that i havent worked the example but i have been feeling a bit
sick, i will upload it as soon as i feel better.

2010/10/2, Christian Fazzini <christian.fazzini@gmail.com>:
> Ok I've gotten it to work. For everyone that is interested or devs who
> stumble across:
>
> Model class:
> has_attached_file :media,
> :styles => { :small => '94x58#',
> :medium => '188x116#',
> :large => '376x232#' },
> :url => '/assets/artists/:artist_id/
> videos/:id/:style.:extension',
> :path => ':rails_root/public/assets/
> artists/:artist_id/videos/:id/:style.:extension',
> :processors => [:video_thumbnail]
>
> ------------------
> /lib/paperclip_processors/video_thumbnail.rb:
>
> module Paperclip
> class VideoThumbnail < Processor
>
> attr_accessor :geometry, :whiny
>
> def initialize(file, options = {}, attachment = nil)
> super
> @file = file
>
> unless options[:geometry].nil? || (@geometry =
> Geometry.parse(options[:geometry])).nil?
> @geometry.width = (@geometry.width / 2.0).floor * 2.0
> @geometry.height = (@geometry.height / 2.0).floor * 2.0
> @geometry.modifier = ''
> end
> @whiny = options[:whiny].nil? ? true : options[:whiny]
> @basename = File.basename(file.path, File.extname(file.path))
> end
>
> def make
>
> dst = Tempfile.new([ @basename, 'jpg' ].compact.join("."))
> dst.binmode
>
> cmd = "ffmpeg -itsoffset -4 -i #{@file.path} -y -vcodec mjpeg -
> vframes 1 -an -f rawvideo -s #{geometry.to_s}
> #{File.expand_path(dst.path)}"
>
> begin
> success = Paperclip.run(cmd)
> rescue PaperclipCommandLineError
> raise PaperclipError, "There was an error processing the
> thumbnail for #{@basename}" if whiny
> end
> dst
> end
> end
> end
>
> ------------------
> /config/initializers/paperclip.rb
>
> Paperclip.interpolates :artist_id do |attachment, style|
> attachment.instance.artist.id
> end
>
> # Ensures that files have the proper extensions. i.e. thumbnails with
> jpgs
> Paperclip.interpolates :extension do |attachment, style_name|
> case attachment.instance.class.to_s
> when "Video"
> if style_name.to_s == 'original'
> 'flv'
> else
> 'jpg'
> end
> when "Audio"
> if style_name.to_s == 'original'
> 'mp3'
> end
> else
> File.extname(attachment.original_filename).gsub(/^\.+/, "")
> end
> end
>
> # Path to ffmpeg
> Paperclip.options[:command_path] = "/opt/local/bin"
>
> --------------------
>
> Hope this helps somebody
>
>
> On Oct 2, 4:44 pm, Christian Fazzini <christian.fazz...@gmail.com>
> wrote:
>> I guess what I am asking is. If my app allows users to upload content,
>> which uses ffmpeg, and takes a while decode audio/video, will this
>> trigger the workers at heroku automatically? Therefore, I don't need
>> to use a workling/startling?
>>
>> Or do I still need to implement a startling/workling for this to
>> prevent the app from 'hanging'?
>>
>> On Oct 2, 4:22 pm, Christian Fazzini <christian.fazz...@gmail.com>
>> wrote:
>>
>> > Hi Radhames, ok, then I will definitely need to use a workling and a
>> > startling for this. Since my users are the ones uploading. By the way,
>> > in Heroku hosting (http://heroku.com/pricing), a workling would be a
>> > worker right? So whenever I implement a workling in my app, it would
>> > trigger the workling in Heroku? Am I understanding this right?
>>
>> > Let me know when you get your example up. Am very eager to have a look
>> > at it
>>
>> > On Oct 2, 6:05 am, radhames brito <rbri...@gmail.com> wrote:
>>
>> > > On Fri, Oct 1, 2010 at 5:29 PM, Christian Fazzini <
>>
>> > > christian.fazz...@gmail.com> wrote:
>> > > > Radhames, what do you think? I am guessing the article at
>>
>> > > >http://www.google.com/url?sa=D&q=http://thewebfellas.com/blog/2009/2/...
>> > > > assumes that the uploader would be the admin, so there is no need
>> > > > for
>> > > > startling or a workling?
>>
>> > > > But if the app allows users to upload, then a startling/workling
>> > > > approach is needed since ffmpeg takes a while to process uploaded
>> > > > files?
>>
>> > > Yes that is right, if only the admin will upload files there is no
>> > > need for
>> > > starling/working.
>>
>> > > I dont see anything wrong in doing things with a method in the model
>> > > like i
>> > > told you the first time.
>>
>>
>
> --
> You received this message because you are subscribed to the Google Groups
> "Ruby on Rails: Talk" group.
> To post to this group, send email to rubyonrails-talk@googlegroups.com.
> To unsubscribe from this group, send email to
> rubyonrails-talk+unsubscribe@googlegroups.com.
> For more options, visit this group at
> http://groups.google.com/group/rubyonrails-talk?hl=en.
>
>

--
Enviado desde mi dispositivo móvil

--
You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group.
To post to this group, send email to rubyonrails-talk@googlegroups.com.
To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe@googlegroups.com.
For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.