Extract format streams from player response

This commit is contained in:
Omar Roth 2019-02-25 17:28:35 -06:00
parent 2847c34f58
commit 62ff9605ce

View File

@ -271,9 +271,51 @@ class Video
def fmt_stream(decrypt_function) def fmt_stream(decrypt_function)
streams = [] of HTTP::Params streams = [] of HTTP::Params
self.info["url_encoded_fmt_stream_map"].split(",") do |string|
if !string.empty? if fmt_streams = self.player_response["streamingData"]["formats"]?
streams << HTTP::Params.parse(string) fmt_streams.as_a.each do |fmt_stream|
if !fmt_stream.as_h?
next
end
fmt = {} of String => String
fmt["lmt"] = fmt_stream["lastModified"].as_s
fmt["projection_type"] = "1"
fmt["type"] = fmt_stream["mimeType"].as_s
fmt["clen"] = fmt_stream["contentLength"]?.try &.as_s || "0"
fmt["bitrate"] = fmt_stream["bitrate"].as_i.to_s
fmt["itag"] = fmt_stream["itag"].as_i.to_s
fmt["url"] = fmt_stream["url"].as_s
fmt["quality"] = fmt_stream["quality"].as_s
if fmt_stream["width"]?
fmt["size"] = "#{fmt_stream["width"]}x#{fmt_stream["height"]}"
fmt["height"] = fmt_stream["height"].as_i.to_s
end
if fmt_stream["fps"]?
fmt["fps"] = fmt_stream["fps"].as_i.to_s
end
if fmt_stream["qualityLabel"]?
fmt["quality_label"] = fmt_stream["qualityLabel"].as_s
end
params = HTTP::Params.new
fmt.each do |key, value|
params[key] = value
end
streams << params
end
streams.sort_by! { |stream| stream["height"].to_i }.reverse!
elsif fmt_stream = self.info["url_encoded_fmt_stream_map"]?
fmt_stream.split(",").each do |string|
if !string.empty?
streams << HTTP::Params.parse(string)
end
end end
end end
@ -296,80 +338,54 @@ class Video
def adaptive_fmts(decrypt_function) def adaptive_fmts(decrypt_function)
adaptive_fmts = [] of HTTP::Params adaptive_fmts = [] of HTTP::Params
if self.info.has_key?("adaptive_fmts") if fmts = self.player_response["streamingData"]["adaptiveFormats"]?
self.info["adaptive_fmts"].split(",") do |string| fmts.as_a.each do |adaptive_fmt|
adaptive_fmts << HTTP::Params.parse(string) if !adaptive_fmt.as_h?
end next
elsif dashmpd = self.player_response["streamingData"]["dashManifestUrl"]?.try &.as_s
client = make_client(YT_URL)
response = client.get(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+)/).try &.["lmt"]
lmt ||= "#{((Time.now + 1.hour).to_unix_f.to_f64 * 1000000).to_i64}"
segment_list = representation.xpath_node(%q(.//segmentlist)).not_nil!
init = segment_list.xpath_node(%q(.//initialization))
# TODO: Replace with sane defaults when byteranges are absent
if init && !init["sourceurl"].starts_with? "sq"
init = init["sourceurl"].lchop("range/")
index = segment_list.xpath_node(%q(.//segmenturl)).not_nil!["media"]
index = index.lchop("range/")
index = "#{init.split("-")[1].to_i + 1}-#{index.split("-")[0].to_i}"
else
init = "0-0"
index = "1-1"
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
fmt = {} of String => String
if init = adaptive_fmt["initRange"]?
fmt["init"] = "#{init["start"]}-#{init["end"]}"
end
fmt["init"] ||= "0-0"
fmt["lmt"] = adaptive_fmt["lastModified"].as_s
fmt["projection_type"] = "1"
fmt["type"] = adaptive_fmt["mimeType"].as_s
fmt["clen"] = adaptive_fmt["contentLength"]?.try &.as_s || "0"
fmt["bitrate"] = adaptive_fmt["bitrate"].as_i.to_s
fmt["itag"] = adaptive_fmt["itag"].as_i.to_s
fmt["url"] = adaptive_fmt["url"].as_s
if index = adaptive_fmt["indexRange"]?
fmt["index"] = "#{index["start"]}-#{index["end"]}"
end
fmt["index"] ||= "0-0"
if adaptive_fmt["width"]?
fmt["size"] = "#{adaptive_fmt["width"]}x#{adaptive_fmt["height"]}"
end
if adaptive_fmt["fps"]?
fmt["fps"] = adaptive_fmt["fps"].as_i.to_s
end
if adaptive_fmt["qualityLabel"]?
fmt["quality_label"] = adaptive_fmt["qualityLabel"].as_s
end
params = HTTP::Params.new
fmt.each do |key, value|
params[key] = value
end
adaptive_fmts << params
end
elsif fmts = self.info["adaptive_fmts"]?
fmts.split(",") do |string|
adaptive_fmts << HTTP::Params.parse(string)
end end
end end
@ -387,13 +403,13 @@ class Video
end end
def video_streams(adaptive_fmts) def video_streams(adaptive_fmts)
video_streams = adaptive_fmts.compact_map { |s| s["type"].starts_with?("video") ? s : nil } video_streams = adaptive_fmts.select { |s| s["type"].starts_with? "video" }
return video_streams return video_streams
end end
def audio_streams(adaptive_fmts) def audio_streams(adaptive_fmts)
audio_streams = adaptive_fmts.compact_map { |s| s["type"].starts_with?("audio") ? s : nil } audio_streams = adaptive_fmts.select { |s| s["type"].starts_with? "audio" }
audio_streams.sort_by! { |s| s["bitrate"].to_i }.reverse! audio_streams.sort_by! { |s| s["bitrate"].to_i }.reverse!
audio_streams.each do |stream| audio_streams.each do |stream|
stream["bitrate"] = (stream["bitrate"].to_f64/1000).to_i.to_s stream["bitrate"] = (stream["bitrate"].to_f64/1000).to_i.to_s