fosdem-recorder.cr/lib/fosdem_recorder/cli.rb

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2021-02-07 20:41:13 +00:00
module FosdemRecorder
# Fosdem Cli - Download and cut streams video
class Cli < Thor
desc 'info URL', 'Get information about URL'
def info(url)
meta = _get_meta(url)
puts meta[:title]
puts "* start = #{meta[:start_str]}"
puts "* stop = #{meta[:stop_str]}"
puts "* length = #{meta[:duration_str]}"
puts "* stream url = #{meta[:stream_url]}"
end
desc 'download URL', 'Download conference described at URL'
def download(url)
meta = _get_meta(url)
cmd = "echo ffmpeg -i #{meta[:stream_url]} -c copy -t #{meta[:duration_str]} \"#{meta[:title_sane]}.mp4\" | at #{meta[:start_str]}"
puts "Command: #{cmd}".yellow
system cmd
end
private
def _validate_url(url)
return if url =~ %r{^https://fosdem.org/\d+/schedule/event/.*}
warn 'ERROR: not a fosdem stream. URL must start with https://fosdem.org/...'
exit 1
end
def _get_meta(url)
mechanize = Mechanize.new
page = mechanize.get(url)
title = page.title
title_sane =
title
.gsub(/[^a-zA-Z0-9]/, '-')
.gsub(/--*/, '-')
.gsub(/-$/, '')
.gsub(/^-/, '')
play_start_str =
page
.at('.side-box .icon-play')
.parent
.at('.value-title')
.text
.strip
play_start = Time.parse(play_start_str)
play_stop_str =
page
.at('.side-box .icon-stop')
.parent
.at('.value-title')
.text.strip
play_stop = Time.parse(play_stop_str)
duration = (play_stop - play_start) / 3600
duration_h = duration.to_i
duration_m = ((duration - duration_h) * 60).to_i
duration_str = format('%<hours>02d:%<minutes>02d:00', hours: duration_h, minutes: duration_m)
stream_page =
page
.links
.select { |link| link.href =~ /live.fosdem.org/ }
.first
.href
stream_url =
stream_page
.gsub(%r{.*watch/}, 'https://stream.fosdem.org/')
.gsub(/$/, '.m3u8')
{
title: title,
title_sane: title_sane,
stream_url: stream_url,
start_str: play_start_str,
stop_str: play_stop_str,
duration_str: duration_str
}
end
end
end