This project is being deprecated in favor of https://github.com/ruby-av/paperclip-av-transcoder
Adding video handling to Paperclip via ffmpeg. This gem has been tested under Linux and Mac OS X, YMMV under Windows.
FFMPEG or AVCONV must be installed and Paperclip must have access to it. To ensure
that it does, on your command line, run which ffmpeg
.
This will give you the path where ffmpeg is installed. For
example, it might return /usr/local/bin/ffmpeg
.
Then, in your environment config file, let Paperclip know to look there by adding that directory to its path.
In development mode, you might add this line to config/environments/development.rb)
:
Paperclip.options[:command_path] = "/usr/local/bin/"
Include the gem in your Gemfile:
gem "paperclip-ffmpeg"
In your model:
class User < ActiveRecord::Base
has_attached_file :avatar, :styles => {
:medium => { :geometry => "640x480", :format => 'flv' },
:thumb => { :geometry => "100x100#", :format => 'jpg', :time => 10 }
}, :processors => [:ffmpeg]
end
This will produce:
- A transcoded
:medium
FLV file with the requested dimensions if they will match the aspect ratio of the original file, otherwise, width will be maintained and height will be recalculated to keep the original aspect ration. - A screenshot
:thumb
with the requested dimensions regardless of the aspect ratio.
You may optionally add <attachment>_meta
to your model and paperclip-ffmpeg will add information about the processed video. You may optionally add use_exiftool: true
to extract all of the metadata from the videos and store it in the meta hash. If using PostgreSQL, enable hstore in one migration, then add an hstore column for this data.
You may optionally add auto_rotate: 'portrait'
or auto_rotate: 'landscape'
to automatically rotate videos to result in portrait or landscape.
When ffmpeg produces mp4 files, it places the moov atom at the end which makes it unstreamable. To handle this, paperclip-ffmpeg includes a processor to run qtfaststart after producing the video file.
In your model:
class Lesson < ActiveRecord::Base
has_attached_file :video, :styles => {
:mobile => {:geometry => "400x300", :format => 'mp4', :streaming => true}
}, :processors => [:ffmpeg, :qtfaststart]
end
See danielgtaylor/qtfaststart for instructions on how to setup qtfaststart.
ffmpeg accepts a variety of options for video and audio like (-ac, -vn). To handle this, paperclip-ffmpeg accepts any options and passes them directly to the ffmpeg command via convert_options
hash which includes the input
and output
options
class Lesson < ActiveRecord::Base
has_attached_file :media, :styles => {
:medium => { :geometry => "640x480", :format => 'flv', :convert_options => {:output => {:ar => 44100}} },
:large => { :geometry => "1024x576", :format => 'flv', :convert_options => {:output => {:ar => 44100}} },
}, :processors => [:ffmpeg]
end
Kudos goes to all contributors for their amazing work.
If you'd like to contribute a feature or bugfix: Thanks! To make sure your fix/feature has a high chance of being included, please read the following guidelines:
- Post a new GitHub Issue[http://github.com/owahab/paperclip-ffmpeg/issues].
- Make sure there are tests! We will not accept any patch that is not tested. It's a rare time when explicit tests aren't needed.
Licensed under MIT license.