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Add support for dashmpd within video info

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This commit is contained in:
Omar Roth 2018-09-12 22:31:47 -05:00
parent 89bda1d3db
commit a54668688b
1 changed files with 69 additions and 0 deletions
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69
src/invidious/videos.cr
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@ -262,6 +262,75 @@ class Video
self.info["adaptive_fmts"].split(",") do |string|
adaptive_fmts << HTTP::Params.parse(string)
end
elsif self.info.has_key?("dashmpd")
client = make_client(YT_URL)
response = client.get(self.info["dashmpd"])
document = XML.parse_html(response.body)
document.xpath_nodes(%q(//adaptationset)).each do |adaptation_set|
mime_type = adaptation_set["mimetype"]
document.xpath_nodes(%q(.//representation)).each do |representation|
codecs = representation["codecs"]
itag = representation["id"]
bandwidth = representation["bandwidth"]
url = representation.xpath_node(%q(.//baseurl)).not_nil!.content
clen = url.match(/clen\/(?<clen>\d+)/).try &.["clen"]
clen ||= "0"
lmt = url.match(/lmt\/(?<lmt>\d+)/).not_nil!["lmt"]
segment_list = representation.xpath_node(%q(.//segmentlist)).not_nil!
init = segment_list.xpath_node(%q(.//initialization)).not_nil!["sourceurl"]
index = segment_list.xpath_node(%q(.//segmenturl)).not_nil!["media"]
# TODO: Replace with sane defaults when byteranges are absent
if init.starts_with? "sq"
init = "0-0"
index = "1-1"
else
init = init.lchop("range/")
index = index.lchop("range/")
index = "#{init.split("-")[1].to_i + 1}-#{index.split("-")[0].to_i}"
end
params = {
"type" => ["#{mime_type}; codecs=\"#{codecs}\""],
"url" => [url],
"projection_type" => ["1"],
"index" => [index],
"init" => [init],
"xtags" => [] of String,
"lmt" => [lmt],
"clen" => [clen],
"bitrate" => [bandwidth],
"itag" => [itag],
}
if mime_type == "video/mp4"
width = representation["width"]?
height = representation["height"]?
fps = representation["framerate"]?
metadata = itag_to_metadata?(itag)
if metadata
width ||= metadata["width"]?
height ||= metadata["height"]?
fps ||= metadata["fps"]?
end
if width && height
params["size"] = ["#{width}x#{height}"]
end
if width
params["quality_label"] = ["#{height}p"]
end
end
adaptive_fmts << HTTP::Params.new(params)
end
end
end
if adaptive_fmts[0]? && adaptive_fmts[0]["s"]?