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Add audio track info to dash manifest, if present

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- language id
  - language display name
  - main/default track
Sort audio formats so that main/default is first (for clients not using dash)

* Note: this should be a non-breaking change; if audio track info is not availablle, the behavior does not change from current
This commit is contained in:
GTechAlpha 2024-11-25 19:00:33 +00:00
parent 9892604758
commit 84a80a0d95
2 changed files with 8 additions and 3 deletions
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9
src/invidious/routes/api/manifest.cr
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@ -70,17 +70,22 @@ module Invidious::Routes::API::Manifest
# OTF streams aren't supported yet (See https://github.com/TeamNewPipe/NewPipe/issues/2415)
next if !(fmt.has_key?("indexRange") && fmt.has_key?("initRange"))
audio_track = fmt["audioTrack"]?.try &.as_h? || {} of String => JSON::Any
lang = audio_track["id"]?.try &.as_s.split('.')[0] || "und"
is_default = audio_track.has_key?("audioIsDefault") ? audio_track["audioIsDefault"].as_bool : i == 0
displayname = audio_track["displayName"]?.try &.as_s || "Unknown"
# Different representations of the same audio should be groupped into one AdaptationSet.
# However, most players don't support auto quality switching, so we have to trick them
# into providing a quality selector.
# See https://github.com/iv-org/invidious/issues/3074 for more details.
xml.element("AdaptationSet", id: i, mimeType: mime_type, startWithSAP: 1, subsegmentAlignment: true, label: fmt["bitrate"].to_s + "k") do
xml.element("AdaptationSet", id: i, mimeType: mime_type, startWithSAP: 1, subsegmentAlignment: true, label: displayname, lang: lang) do
codecs = fmt["mimeType"].as_s.split("codecs=")[1].strip('"')
bandwidth = fmt["bitrate"].as_i
itag = fmt["itag"].as_i
url = fmt["url"].as_s
xml.element("Role", schemeIdUri: "urn:mpeg:dash:role:2011", value: i == 0 ? "main" : "alternate")
xml.element("Role", schemeIdUri: "urn:mpeg:dash:role:2011", value: is_default ? "main" : "alternate")
xml.element("Representation", id: fmt["itag"], codecs: codecs, bandwidth: bandwidth) do
xml.element("AudioChannelConfiguration", schemeIdUri: "urn:mpeg:dash:23003:3:audio_channel_configuration:2011",

2
src/invidious/videos.cr
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@ -106,7 +106,7 @@ struct Video
if formats = info.dig?("streamingData", "adaptiveFormats")
return formats
.as_a.map(&.as_h)
.sort_by! { |f| f["width"]?.try &.as_i || 0 }
.sort_by! { |f| f["width"]?.try &.as_i || f["audioTrack"]?.try { |a| a["audioIsDefault"]?.try { |v| v.as_bool ? -1 : 0 } } || 0 }
else
return [] of Hash(String, JSON::Any)
end