Thomas Lange bf470704a5 Add option to control preloading of video data
Fix #4110 by adding an option to control the preloading of video data on
page load. If disabled ("false"), the browser will not preload any video
data until the user explicitly hits the "Play" button.

If enabled ("true"), the default behavior will be used, which means the
browser decides how much of the video will be preloaded.
2023-09-26 22:21:12 +02:00

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<video style="outline:none;width:100%;background-color:#000" playsinline poster="<%= thumbnail %>"
id="player" class="on-video_player video-js player-style-<%= params.player_style %>"
preload="<% if params.preload %>auto<% else %>none<% end %>"
<% if params.autoplay %>autoplay<% end %>
<% if params.video_loop %>loop<% end %>
<% if params.controls %>controls<% end %>>
<% if (hlsvp = video.hls_manifest_url) && !CONFIG.disabled?("livestreams") %>
<source src="<%= URI.parse(hlsvp).request_target %><% if params.local %>?local=true<% end %>" type="application/x-mpegURL" label="livestream">
<% else %>
<% if params.listen %>
<% # default to 128k m4a stream
best_m4a_stream_index = 0
best_m4a_stream_bitrate = 0
audio_streams.each_with_index do |fmt, i|
bandwidth = fmt["bitrate"].as_i
if (fmt["mimeType"].as_s.starts_with?("audio/mp4") && bandwidth > best_m4a_stream_bitrate)
best_m4a_stream_bitrate = bandwidth
best_m4a_stream_index = i
end
end
audio_streams.each_with_index do |fmt, i|
src_url = "/latest_version?id=#{video.id}&itag=#{fmt["itag"]}"
src_url += "&local=true" if params.local
bitrate = fmt["bitrate"]
mimetype = HTML.escape(fmt["mimeType"].as_s)
selected = (i == best_m4a_stream_index)
%>
<source src="<%= src_url %>" type='<%= mimetype %>' label="<%= bitrate %>k" selected="<%= selected %>">
<% if !params.local && !CONFIG.disabled?("local") %>
<source src="<%= src_url %>&local=true" type='<%= mimetype %>' hidequalityoption="true">
<% end %>
<% end %>
<% else %>
<% if params.quality == "dash" %>
<source src="/api/manifest/dash/id/<%= video.id %>?local=true&unique_res=1" type='application/dash+xml' label="dash">
<% end %>
<%
fmt_stream.reject! { |f| f["itag"] == 17 }
fmt_stream.sort_by! {|f| params.quality == f["quality"] ? 0 : 1 }
fmt_stream.each_with_index do |fmt, i|
src_url = "/latest_version?id=#{video.id}&itag=#{fmt["itag"]}"
src_url += "&local=true" if params.local
quality = fmt["quality"]
mimetype = HTML.escape(fmt["mimeType"].as_s)
selected = params.quality ? (params.quality == quality) : (i == 0)
%>
<source src="<%= src_url %>" type="<%= mimetype %>" label="<%= quality %>" selected="<%= selected %>">
<% if !params.local && !CONFIG.disabled?("local") %>
<source src="<%= src_url %>&local=true" type="<%= mimetype %>" hidequalityoption="true">
<% end %>
<% end %>
<% end %>
<% preferred_captions.each do |caption| %>
<track kind="captions" src="/api/v1/captions/<%= video.id %>?label=<%= caption.name %>" label="<%= caption.name %>">
<% end %>
<% captions.each do |caption| %>
<track kind="captions" src="/api/v1/captions/<%= video.id %>?label=<%= caption.name %>" label="<%= caption.name %>">
<% end %>
<% end %>
</video>
<script id="player_data" type="application/json">
<%=
{
"aspect_ratio" => aspect_ratio,
"title" => video.title,
"description" => HTML.escape(video.short_description),
"thumbnail" => thumbnail,
"preferred_caption_found" => !preferred_captions.empty?,
"preload" => params.preload ? "auto" : "none"
}.to_pretty_json
%>
</script>
<script src="/js/player.js?v=<%= ASSET_COMMIT %>"></script>