dash_timeline_validator

Dash Timeline Validator

This tool allows you to validate your MPEG Dash manifest to find if there are errors related to the presentation timeline model.

Docker Usage

docker run -e VERIFY_SEGMENTS_DURATION=false --rm -it anafrombr/dash_timeline_validator https://storage.googleapis.com/shaka-live-assets/player-source.mpd

Installation

Add this line to your application's Gemfile:

gem 'dash_timeline_validator'

And then execute:

$ bundle

Or install it yourself as:

$ gem install dash_timeline_validator

Usage

Run this program passing the manifest path.

dash_timeline_validator https://storage.googleapis.com/shaka-live-assets/player-source.mpd

Options

• ACCEPTABLE_DRIFT *(default 2)* - the minimum duration drift acceptable between the sequential segments
• DEFAULT_PRESENTATION_DELAY *(default 10)* - the delay in seconds of the live edge
• BUFFERED_SEGMENTS *(default 2)* - the number of segments buffered by the player to generate the live edge
• VERIFY_SEGMENTS_DURATION *(default false)* - check the duration of every segment when setted to true (warn: this will download every segment of the manifest)
• ANALYZER_FOLDER *(default "data/[HASH]")* - folder used to download the files
• ANALYZER_MANIFEST_PATH *(default "#{ANALYZER_FOLDER}/manifest.mpd")* - manifest path

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/globocom/dash_timeline_validator.