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lsloan/ Convert video subtitles from YouTube XML format to SubRip (.srt)

Last activeJune 17, 2018 12:31

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A Ruby program to convert video subtitles from YouTube's XML format to the SubRip format.

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Convert video subtitles from YouTube XML format to SubRip (.srt)

	Gist title: "Convert video subtitles from YouTube XML format to SubRip (.srt)"

	Summary: A Ruby program to convert video subtitles from YouTube's XML format to the SubRip format.

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youtube2srt.rb

	# Convert XML YouTube subtitles to SubRip (srt) format
	# To download the subtitle in XML, put the ID of the YouTube video
	# at the end of the url:
	#
	# http://video.google.com/timedtext?hl=en&lang=en&v=__youtube_video_ID__

	# Usage:
	#
	# $ ruby youtube2srt.rb [input_filename] [output_filename]
	#
	# Where input_filename can be either the name of your xml file
	# (probably timedtext.xml) or the hashid of your YouTube video.
	# The output filename is optional.

	require'rubygems'
	require'nokogiri'
	require'uri'
	require'net/http'

	BASE_URL='http://video.google.com/timedtext?hl=en&lang=en&v='
	source_filename=ARGV[0]
	output_filename=ARGV[1]
	TIME_FORMAT='%02H:%02M:%02S,%3N'

	defcreate_srtoutput_filename,source_filename,source_file
	File.open(output_filename \|\|source_filename.gsub('.xml','').concat('.srt'),'w+')do \|srt_file\|
	source_file.css('text').to_enum.with_index(1)do \|sub,i\|
	start_time=Time.at(sub['start'].to_f).utc
	end_time=start_time +sub['dur'].to_f
	srt_file.write(<<~CAPTION
	#{i}
	#{start_time.strftime(TIME_FORMAT)} -->#{end_time.strftime(TIME_FORMAT)}
	#{Nokogiri::HTML.parse(sub.text).text}

	CAPTION
	)
	end
	end
	end

	ifsource_filename =~/\.xml$/i
	source_file=Nokogiri::XML(open(source_filename), &:noblanks)
	create_srt(output_filename,source_filename,source_file)
	puts"xml file#{source_filename} converted to srt"
	else
	response=Net::HTTP.get_responseURI.parse(BASE_URL+source_filename)
	ifresponse.code_type.ancestors.include?(Net::HTTPSuccess)
	source_file=Nokogiri::XML(response.body, &:noblanks)
	create_srt(output_filename,source_filename,source_file)
	puts'Google timedtext.xml converted to srt'
	else
	puts"Couldn't find a srt file for#{source_filename} at#{BASE_URL +source_filename}"
	end
	end