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Add logic to fetch transcripts from label

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Although available this method should be discouraged as it requires
an extra request to YouTube to get caption data in order to
map label -> language code and auto-generated status, which are needed
to fetch transcripts.
This commit is contained in:
syeopite 2024-06-13 10:56:18 -07:00
parent 7693f61e44
commit b2f5b1eb68
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1 changed files with 22 additions and 1 deletions
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23
src/invidious/routes/api/v1/videos.cr
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@ -421,10 +421,11 @@ module Invidious::Routes::API::V1::Videos
id = env.params.url["id"]
lang = env.params.query["lang"]?
label = env.params.query["label"]?
auto_generated = env.params.query["autogen"]? ? true : false
# Return all available transcript options when none is given
if !lang
if !label && !lang
begin
video = get_video(id)
rescue ex : NotFoundException
@ -462,6 +463,26 @@ module Invidious::Routes::API::V1::Videos
return response
end
# If lang is not given then we attempt to fetch
# the transcript through the given label
if lang.nil?
begin
video = get_video(id)
rescue ex : NotFoundException
return error_json(404, ex)
rescue ex
return error_json(500, ex)
end
target_transcript = video.captions.select(&.name.== label)
if target_transcript.empty?
return error_json(404, NotFoundException.new("Requested transcript does not exist"))
else
target_transcript = target_transcript[0]
lang, auto_generated = target_transcript.language_code, target_transcript.auto_generated
end
end
params = Invidious::Videos::Transcript.generate_param(id, lang, auto_generated)
begin