videos: move API's JSON structure to a dedicated module
Samantaz Fox
2 years ago
parent
ae03ed7bf7
commit
87a5d70062
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require "json"
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module Invidious::JSONify::APIv1
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extend self
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def video(video : Video, json : JSON::Builder, *, locale : String?)
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json.object do
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json.field "type", video.video_type
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json.field "title", video.title
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json.field "videoId", video.id
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json.field "error", video.info["reason"] if video.info["reason"]?
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json.field "videoThumbnails" do
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self.thumbnails(json, video.id)
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end
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json.field "storyboards" do
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self.storyboards(json, video.id, video.storyboards)
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end
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json.field "description", video.description
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json.field "descriptionHtml", video.description_html
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json.field "published", video.published.to_unix
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json.field "publishedText", translate(locale, "`x` ago", recode_date(video.published, locale))
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json.field "keywords", video.keywords
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json.field "viewCount", video.views
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json.field "likeCount", video.likes
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json.field "dislikeCount", 0_i64
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json.field "paid", video.paid
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json.field "premium", video.premium
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json.field "isFamilyFriendly", video.is_family_friendly
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json.field "allowedRegions", video.allowed_regions
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json.field "genre", video.genre
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json.field "genreUrl", video.genre_url
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json.field "author", video.author
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json.field "authorId", video.ucid
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json.field "authorUrl", "/channel/#{video.ucid}"
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json.field "authorThumbnails" do
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json.array do
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qualities = {32, 48, 76, 100, 176, 512}
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qualities.each do |quality|
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json.object do
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json.field "url", video.author_thumbnail.gsub(/=s\d+/, "=s#{quality}")
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json.field "width", quality
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json.field "height", quality
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end
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end
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end
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end
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json.field "subCountText", video.sub_count_text
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json.field "lengthSeconds", video.length_seconds
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json.field "allowRatings", video.allow_ratings
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json.field "rating", 0_i64
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json.field "isListed", video.is_listed
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json.field "liveNow", video.live_now
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json.field "isUpcoming", video.is_upcoming
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if video.premiere_timestamp
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json.field "premiereTimestamp", video.premiere_timestamp.try &.to_unix
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end
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if hlsvp = video.hls_manifest_url
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hlsvp = hlsvp.gsub("https://manifest.googlevideo.com", HOST_URL)
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json.field "hlsUrl", hlsvp
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end
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json.field "dashUrl", "#{HOST_URL}/api/manifest/dash/id/#{video.id}"
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json.field "adaptiveFormats" do
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json.array do
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video.adaptive_fmts.each do |fmt|
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json.object do
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# Only available on regular videos, not livestreams/OTF streams
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if init_range = fmt["initRange"]?
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json.field "init", "#{init_range["start"]}-#{init_range["end"]}"
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end
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if index_range = fmt["indexRange"]?
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json.field "index", "#{index_range["start"]}-#{index_range["end"]}"
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end
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# Not available on MPEG-4 Timed Text (`text/mp4`) streams (livestreams only)
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json.field "bitrate", fmt["bitrate"].as_i.to_s if fmt["bitrate"]?
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json.field "url", fmt["url"]
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json.field "itag", fmt["itag"].as_i.to_s
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json.field "type", fmt["mimeType"]
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json.field "clen", fmt["contentLength"]? || "-1"
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json.field "lmt", fmt["lastModified"]
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json.field "projectionType", fmt["projectionType"]
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if fmt_info = Invidious::Videos::Formats.itag_to_metadata?(fmt["itag"])
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fps = fmt_info["fps"]?.try &.to_i || fmt["fps"]?.try &.as_i || 30
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json.field "fps", fps
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json.field "container", fmt_info["ext"]
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json.field "encoding", fmt_info["vcodec"]? || fmt_info["acodec"]
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if fmt_info["height"]?
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json.field "resolution", "#{fmt_info["height"]}p"
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quality_label = "#{fmt_info["height"]}p"
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if fps > 30
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quality_label += "60"
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end
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json.field "qualityLabel", quality_label
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if fmt_info["width"]?
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json.field "size", "#{fmt_info["width"]}x#{fmt_info["height"]}"
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end
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end
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end
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# Livestream chunk infos
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json.field "targetDurationSec", fmt["targetDurationSec"].as_i if fmt.has_key?("targetDurationSec")
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json.field "maxDvrDurationSec", fmt["maxDvrDurationSec"].as_i if fmt.has_key?("maxDvrDurationSec")
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# Audio-related data
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json.field "audioQuality", fmt["audioQuality"] if fmt.has_key?("audioQuality")
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json.field "audioSampleRate", fmt["audioSampleRate"].as_s.to_i if fmt.has_key?("audioSampleRate")
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json.field "audioChannels", fmt["audioChannels"] if fmt.has_key?("audioChannels")
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# Extra misc stuff
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json.field "colorInfo", fmt["colorInfo"] if fmt.has_key?("colorInfo")
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json.field "captionTrack", fmt["captionTrack"] if fmt.has_key?("captionTrack")
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end
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end
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end
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end
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json.field "formatStreams" do
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json.array do
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video.fmt_stream.each do |fmt|
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json.object do
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json.field "url", fmt["url"]
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json.field "itag", fmt["itag"].as_i.to_s
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json.field "type", fmt["mimeType"]
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json.field "quality", fmt["quality"]
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fmt_info = Invidious::Videos::Formats.itag_to_metadata?(fmt["itag"])
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if fmt_info
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fps = fmt_info["fps"]?.try &.to_i || fmt["fps"]?.try &.as_i || 30
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json.field "fps", fps
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json.field "container", fmt_info["ext"]
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json.field "encoding", fmt_info["vcodec"]? || fmt_info["acodec"]
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if fmt_info["height"]?
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json.field "resolution", "#{fmt_info["height"]}p"
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quality_label = "#{fmt_info["height"]}p"
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if fps > 30
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quality_label += "60"
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end
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json.field "qualityLabel", quality_label
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if fmt_info["width"]?
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json.field "size", "#{fmt_info["width"]}x#{fmt_info["height"]}"
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end
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end
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end
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end
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end
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end
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end
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json.field "captions" do
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json.array do
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video.captions.each do |caption|
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json.object do
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json.field "label", caption.name
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json.field "language_code", caption.language_code
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json.field "url", "/api/v1/captions/#{video.id}?label=#{URI.encode_www_form(caption.name)}"
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end
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end
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end
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end
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json.field "recommendedVideos" do
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json.array do
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video.related_videos.each do |rv|
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if rv["id"]?
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json.object do
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json.field "videoId", rv["id"]
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json.field "title", rv["title"]
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json.field "videoThumbnails" do
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self.thumbnails(json, rv["id"])
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end
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json.field "author", rv["author"]
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json.field "authorUrl", "/channel/#{rv["ucid"]?}"
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json.field "authorId", rv["ucid"]?
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if rv["author_thumbnail"]?
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json.field "authorThumbnails" do
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json.array do
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qualities = {32, 48, 76, 100, 176, 512}
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qualities.each do |quality|
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json.object do
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json.field "url", rv["author_thumbnail"].gsub(/s\d+-/, "s#{quality}-")
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json.field "width", quality
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json.field "height", quality
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end
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end
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end
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end
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end
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json.field "lengthSeconds", rv["length_seconds"]?.try &.to_i
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json.field "viewCountText", rv["short_view_count"]?
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json.field "viewCount", rv["view_count"]?.try &.empty? ? nil : rv["view_count"].to_i64
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end
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end
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end
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end
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end
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end
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end
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def thumbnails(json, id)
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json.array do
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build_thumbnails(id).each do |thumbnail|
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json.object do
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json.field "quality", thumbnail[:name]
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json.field "url", "#{thumbnail[:host]}/vi/#{id}/#{thumbnail["url"]}.jpg"
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json.field "width", thumbnail[:width]
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json.field "height", thumbnail[:height]
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end
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end
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end
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end
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def storyboards(json, id, storyboards)
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json.array do
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storyboards.each do |storyboard|
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json.object do
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json.field "url", "/api/v1/storyboards/#{id}?width=#{storyboard[:width]}&height=#{storyboard[:height]}"
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json.field "templateUrl", storyboard[:url]
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json.field "width", storyboard[:width]
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json.field "height", storyboard[:height]
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json.field "count", storyboard[:count]
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json.field "interval", storyboard[:interval]
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json.field "storyboardWidth", storyboard[:storyboard_width]
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json.field "storyboardHeight", storyboard[:storyboard_height]
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json.field "storyboardCount", storyboard[:storyboard_count]
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end
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end
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end
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end
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end
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