class Video module HTTPParamConverter def self.from_rs(rs) HTTP::Params.parse(rs.read(String)) end end def fmt_stream(decrypt_function) streams = [] of HTTP::Params self.info["url_encoded_fmt_stream_map"].split(",") do |string| if !string.empty? streams << HTTP::Params.parse(string) end end streams.each { |s| s.add("label", "#{s["quality"]} - #{s["type"].split(";")[0].split("/")[1]}") } streams = streams.uniq { |s| s["label"] } if streams[0]? && streams[0]["s"]? streams.each do |fmt| fmt["url"] += "&signature=" + decrypt_signature(fmt["s"], decrypt_function) end end return streams end def adaptive_fmts(decrypt_function) adaptive_fmts = [] of HTTP::Params if self.info.has_key?("adaptive_fmts") self.info["adaptive_fmts"].split(",") do |string| adaptive_fmts << HTTP::Params.parse(string) end end if adaptive_fmts[0]? && adaptive_fmts[0]["s"]? adaptive_fmts.each do |fmt| fmt["url"] += "&signature=" + decrypt_signature(fmt["s"], decrypt_function) end end return adaptive_fmts end def audio_streams(adaptive_fmts) audio_streams = adaptive_fmts.compact_map { |s| s["type"].starts_with?("audio") ? s : nil } audio_streams.sort_by! { |s| s["bitrate"].to_i }.reverse! audio_streams.each do |stream| stream["bitrate"] = (stream["bitrate"].to_f64/1000).to_i.to_s end return audio_streams end def captions player_response = JSON.parse(self.info["player_response"]) if player_response["captions"]? captions = player_response["captions"]["playerCaptionsTracklistRenderer"]["captionTracks"]?.try &.as_a end captions ||= [] of JSON::Any return captions end def short_description description = self.description.gsub("
", " ") description = description.gsub("
", " ") description = XML.parse_html(description).content[0..200].gsub('"', """).gsub("\n", " ").strip(" ") if description.empty? description = " " end return description end add_mapping({ id: String, info: { type: HTTP::Params, default: HTTP::Params.parse(""), converter: Video::HTTPParamConverter, }, updated: Time, title: String, views: Int64, likes: Int32, dislikes: Int32, wilson_score: Float64, published: Time, description: String, language: String?, author: String, ucid: String, allowed_regions: Array(String), is_family_friendly: Bool, genre: String, }) end def get_video(id, db, refresh = true) if db.query_one?("SELECT EXISTS (SELECT true FROM videos WHERE id = $1)", id, as: Bool) video = db.query_one("SELECT * FROM videos WHERE id = $1", id, as: Video) # If record was last updated over an hour ago, refresh (expire param in response lasts for 6 hours) if refresh && Time.now - video.updated > 1.hour begin video = fetch_video(id) video_array = video.to_a args = arg_array(video_array[1..-1], 2) db.exec("UPDATE videos SET (info,updated,title,views,likes,dislikes,wilson_score,\ published,description,language,author,ucid, allowed_regions, is_family_friendly, genre)\ = (#{args}) WHERE id = $1", video_array) rescue ex db.exec("DELETE FROM videos * WHERE id = $1", id) raise ex end end else video = fetch_video(id) video_array = video.to_a args = arg_array(video_array) db.exec("INSERT INTO videos VALUES (#{args}) ON CONFLICT (id) DO NOTHING", video_array) end return video end def fetch_video(id) html_channel = Channel(XML::Node).new info_channel = Channel(HTTP::Params).new spawn do client = make_client(YT_URL) html = client.get("/watch?v=#{id}&bpctr=#{Time.new.epoch + 2000}&disable_polymer=1") html = XML.parse_html(html.body) html_channel.send(html) end spawn do client = make_client(YT_URL) info = client.get("/get_video_info?video_id=#{id}&el=detailpage&ps=default&eurl=&gl=US&hl=en&disable_polymer=1") info = HTTP::Params.parse(info.body) if info["reason"]? info = client.get("/get_video_info?video_id=#{id}&ps=default&eurl=&gl=US&hl=en&disable_polymer=1") info = HTTP::Params.parse(info.body) end info_channel.send(info) end html = html_channel.receive info = info_channel.receive if info["reason"]? raise info["reason"] end title = info["title"] views = info["view_count"].to_i64 author = info["author"] ucid = info["ucid"] likes = html.xpath_node(%q(//button[@title="I like this"]/span)) likes = likes.try &.content.delete(",").try &.to_i likes ||= 0 dislikes = html.xpath_node(%q(//button[@title="I dislike this"]/span)) dislikes = dislikes.try &.content.delete(",").try &.to_i dislikes ||= 0 description = html.xpath_node(%q(//p[@id="eow-description"])) description = description ? description.to_xml : "" wilson_score = ci_lower_bound(likes, likes + dislikes) published = html.xpath_node(%q(//meta[@itemprop="datePublished"])).not_nil!["content"] published = Time.parse(published, "%Y-%m-%d", Time::Location.local) allowed_regions = html.xpath_node(%q(//meta[@itemprop="regionsAllowed"])).not_nil!["content"].split(",") is_family_friendly = html.xpath_node(%q(//meta[@itemprop="isFamilyFriendly"])).not_nil!["content"] == "True" genre = html.xpath_node(%q(//meta[@itemprop="genre"])).not_nil!["content"] video = Video.new(id, info, Time.now, title, views, likes, dislikes, wilson_score, published, description, nil, author, ucid, allowed_regions, is_family_friendly, genre) return video end def itag_to_metadata(itag : String) # See https://github.com/rg3/youtube-dl/blob/master/youtube_dl/extractor/youtube.py#L380-#L476 formats = {"5" => {"ext" => "flv", "width" => 400, "height" => 240, "acodec" => "mp3", "abr" => 64, "vcodec" => "h263"}, "6" => {"ext" => "flv", "width" => 450, "height" => 270, "acodec" => "mp3", "abr" => 64, "vcodec" => "h263"}, "13" => {"ext" => "3gp", "acodec" => "aac", "vcodec" => "mp4v"}, "17" => {"ext" => "3gp", "width" => 176, "height" => 144, "acodec" => "aac", "abr" => 24, "vcodec" => "mp4v"}, "18" => {"ext" => "mp4", "width" => 640, "height" => 360, "acodec" => "aac", "abr" => 96, "vcodec" => "h264"}, "22" => {"ext" => "mp4", "width" => 1280, "height" => 720, "acodec" => "aac", "abr" => 192, "vcodec" => "h264"}, "34" => {"ext" => "flv", "width" => 640, "height" => 360, "acodec" => "aac", "abr" => 128, "vcodec" => "h264"}, "35" => {"ext" => "flv", "width" => 854, "height" => 480, "acodec" => "aac", "abr" => 128, "vcodec" => "h264"}, "36" => {"ext" => "3gp", "width" => 320, "acodec" => "aac", "vcodec" => "mp4v"}, "37" => {"ext" => "mp4", "width" => 1920, "height" => 1080, "acodec" => "aac", "abr" => 192, "vcodec" => "h264"}, "38" => {"ext" => "mp4", "width" => 4096, "height" => 3072, "acodec" => "aac", "abr" => 192, "vcodec" => "h264"}, "43" => {"ext" => "webm", "width" => 640, "height" => 360, "acodec" => "vorbis", "abr" => 128, "vcodec" => "vp8"}, "44" => {"ext" => "webm", "width" => 854, "height" => 480, "acodec" => "vorbis", "abr" => 128, "vcodec" => "vp8"}, "45" => {"ext" => "webm", "width" => 1280, "height" => 720, "acodec" => "vorbis", "abr" => 192, "vcodec" => "vp8"}, "46" => {"ext" => "webm", "width" => 1920, "height" => 1080, "acodec" => "vorbis", "abr" => 192, "vcodec" => "vp8"}, "59" => {"ext" => "mp4", "width" => 854, "height" => 480, "acodec" => "aac", "abr" => 128, "vcodec" => "h264"}, "78" => {"ext" => "mp4", "width" => 854, "height" => 480, "acodec" => "aac", "abr" => 128, "vcodec" => "h264"}, # 3D videos "82" => {"ext" => "mp4", "height" => 360, "format" => "3D", "acodec" => "aac", "abr" => 128, "vcodec" => "h264"}, "83" => {"ext" => "mp4", "height" => 480, "format" => "3D", "acodec" => "aac", "abr" => 128, "vcodec" => "h264"}, "84" => {"ext" => "mp4", "height" => 720, "format" => "3D", "acodec" => "aac", "abr" => 192, "vcodec" => "h264"}, "85" => {"ext" => "mp4", "height" => 1080, "format" => "3D", "acodec" => "aac", "abr" => 192, "vcodec" => "h264"}, "100" => {"ext" => "webm", "height" => 360, "format" => "3D", "acodec" => "vorbis", "abr" => 128, "vcodec" => "vp8"}, "101" => {"ext" => "webm", "height" => 480, "format" => "3D", "acodec" => "vorbis", "abr" => 192, "vcodec" => "vp8"}, "102" => {"ext" => "webm", "height" => 720, "format" => "3D", "acodec" => "vorbis", "abr" => 192, "vcodec" => "vp8"}, # Apple HTTP Live Streaming "91" => {"ext" => "mp4", "height" => 144, "format" => "HLS", "acodec" => "aac", "abr" => 48, "vcodec" => "h264"}, "92" => {"ext" => "mp4", "height" => 240, "format" => "HLS", "acodec" => "aac", "abr" => 48, "vcodec" => "h264"}, "93" => {"ext" => "mp4", "height" => 360, "format" => "HLS", "acodec" => "aac", "abr" => 128, "vcodec" => "h264"}, "94" => {"ext" => "mp4", "height" => 480, "format" => "HLS", "acodec" => "aac", "abr" => 128, "vcodec" => "h264"}, "95" => {"ext" => "mp4", "height" => 720, "format" => "HLS", "acodec" => "aac", "abr" => 256, "vcodec" => "h264"}, "96" => {"ext" => "mp4", "height" => 1080, "format" => "HLS", "acodec" => "aac", "abr" => 256, "vcodec" => "h264"}, "132" => {"ext" => "mp4", "height" => 240, "format" => "HLS", "acodec" => "aac", "abr" => 48, "vcodec" => "h264"}, "151" => {"ext" => "mp4", "height" => 72, "format" => "HLS", "acodec" => "aac", "abr" => 24, "vcodec" => "h264"}, # DASH mp4 video "133" => {"ext" => "mp4", "height" => 240, "format" => "DASH video", "vcodec" => "h264"}, "134" => {"ext" => "mp4", "height" => 360, "format" => "DASH video", "vcodec" => "h264"}, "135" => {"ext" => "mp4", "height" => 480, "format" => "DASH video", "vcodec" => "h264"}, "136" => {"ext" => "mp4", "height" => 720, "format" => "DASH video", "vcodec" => "h264"}, "137" => {"ext" => "mp4", "height" => 1080, "format" => "DASH video", "vcodec" => "h264"}, "138" => {"ext" => "mp4", "format" => "DASH video", "vcodec" => "h264"}, # Height can vary (https=>//github.com/rg3/youtube-dl/issues/4559) "160" => {"ext" => "mp4", "height" => 144, "format" => "DASH video", "vcodec" => "h264"}, "212" => {"ext" => "mp4", "height" => 480, "format" => "DASH video", "vcodec" => "h264"}, "264" => {"ext" => "mp4", "height" => 1440, "format" => "DASH video", "vcodec" => "h264"}, "298" => {"ext" => "mp4", "height" => 720, "format" => "DASH video", "vcodec" => "h264", "fps" => 60}, "299" => {"ext" => "mp4", "height" => 1080, "format" => "DASH video", "vcodec" => "h264", "fps" => 60}, "266" => {"ext" => "mp4", "height" => 2160, "format" => "DASH video", "vcodec" => "h264"}, # Dash mp4 audio "139" => {"ext" => "m4a", "format" => "DASH audio", "acodec" => "aac", "abr" => 48, "container" => "m4a_dash"}, "140" => {"ext" => "m4a", "format" => "DASH audio", "acodec" => "aac", "abr" => 128, "container" => "m4a_dash"}, "141" => {"ext" => "m4a", "format" => "DASH audio", "acodec" => "aac", "abr" => 256, "container" => "m4a_dash"}, "256" => {"ext" => "m4a", "format" => "DASH audio", "acodec" => "aac", "container" => "m4a_dash"}, "258" => {"ext" => "m4a", "format" => "DASH audio", "acodec" => "aac", "container" => "m4a_dash"}, "325" => {"ext" => "m4a", "format" => "DASH audio", "acodec" => "dtse", "container" => "m4a_dash"}, "328" => {"ext" => "m4a", "format" => "DASH audio", "acodec" => "ec-3", "container" => "m4a_dash"}, # Dash webm "167" => {"ext" => "webm", "height" => 360, "width" => 640, "format" => "DASH video", "container" => "webm", "vcodec" => "vp8"}, "168" => {"ext" => "webm", "height" => 480, "width" => 854, "format" => "DASH video", "container" => "webm", "vcodec" => "vp8"}, "169" => {"ext" => "webm", "height" => 720, "width" => 1280, "format" => "DASH video", "container" => "webm", "vcodec" => "vp8"}, "170" => {"ext" => "webm", "height" => 1080, "width" => 1920, "format" => "DASH video", "container" => "webm", "vcodec" => "vp8"}, "218" => {"ext" => "webm", "height" => 480, "width" => 854, "format" => "DASH video", "container" => "webm", "vcodec" => "vp8"}, "219" => {"ext" => "webm", "height" => 480, "width" => 854, "format" => "DASH video", "container" => "webm", "vcodec" => "vp8"}, "278" => {"ext" => "webm", "height" => 144, "format" => "DASH video", "container" => "webm", "vcodec" => "vp9"}, "242" => {"ext" => "webm", "height" => 240, "format" => "DASH video", "vcodec" => "vp9"}, "243" => {"ext" => "webm", "height" => 360, "format" => "DASH video", "vcodec" => "vp9"}, "244" => {"ext" => "webm", "height" => 480, "format" => "DASH video", "vcodec" => "vp9"}, "245" => {"ext" => "webm", "height" => 480, "format" => "DASH video", "vcodec" => "vp9"}, "246" => {"ext" => "webm", "height" => 480, "format" => "DASH video", "vcodec" => "vp9"}, "247" => {"ext" => "webm", "height" => 720, "format" => "DASH video", "vcodec" => "vp9"}, "248" => {"ext" => "webm", "height" => 1080, "format" => "DASH video", "vcodec" => "vp9"}, "271" => {"ext" => "webm", "height" => 1440, "format" => "DASH video", "vcodec" => "vp9"}, # itag 272 videos are either 3840x2160 (e.g. RtoitU2A-3E) or 7680x4320 (sLprVF6d7Ug) "272" => {"ext" => "webm", "height" => 2160, "format" => "DASH video", "vcodec" => "vp9"}, "302" => {"ext" => "webm", "height" => 720, "format" => "DASH video", "vcodec" => "vp9", "fps" => 60}, "303" => {"ext" => "webm", "height" => 1080, "format" => "DASH video", "vcodec" => "vp9", "fps" => 60}, "308" => {"ext" => "webm", "height" => 1440, "format" => "DASH video", "vcodec" => "vp9", "fps" => 60}, "313" => {"ext" => "webm", "height" => 2160, "format" => "DASH video", "vcodec" => "vp9"}, "315" => {"ext" => "webm", "height" => 2160, "format" => "DASH video", "vcodec" => "vp9", "fps" => 60}, # Dash webm audio "171" => {"ext" => "webm", "acodec" => "vorbis", "format" => "DASH audio", "abr" => 128}, "172" => {"ext" => "webm", "acodec" => "vorbis", "format" => "DASH audio", "abr" => 256}, # Dash webm audio with opus inside "249" => {"ext" => "webm", "format" => "DASH audio", "acodec" => "opus", "abr" => 50}, "250" => {"ext" => "webm", "format" => "DASH audio", "acodec" => "opus", "abr" => 70}, "251" => {"ext" => "webm", "format" => "DASH audio", "acodec" => "opus", "abr" => 160}, } return formats[itag] end def process_video_params(query, preferences) autoplay = query["autoplay"]?.try &.to_i? video_loop = query["loop"]?.try &.to_i? if preferences autoplay ||= preferences.autoplay.to_unsafe video_loop ||= preferences.video_loop.to_unsafe end autoplay ||= 0 autoplay = autoplay == 1 video_loop ||= 0 video_loop = video_loop == 1 if query["start"]? video_start = decode_time(query["start"]) end if query["t"]? video_start = decode_time(query["t"]) end video_start ||= 0 if query["end"]? video_end = decode_time(query["end"]) end video_end ||= -1 if query["listen"]? && (query["listen"] == "true" || query["listen"] == "1") listen = true end listen ||= false raw = query["raw"]?.try &.to_i? raw ||= 0 raw = raw == 1 quality = query["quality"]? quality ||= "hd720" autoplay = query["autoplay"]?.try &.to_i? autoplay ||= 0 autoplay = autoplay == 1 controls = query["controls"]?.try &.to_i? controls ||= 1 controls = controls == 1 return autoplay, video_loop, video_start, video_end, listen, raw, quality, autoplay, controls end