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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Enter background-audio mode: hand playback of the currently-watched video off to the native ExoPlayer audio path so the audio keeps playing while the app is backgrounded/locked, with no client-side video decode (UR-040)."><title>player_enter_background_audio in jellytau_lib::commands::player - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="jellytau_lib" data-themes="" data-resource-suffix="" data-rustdoc-version="1.97.1 (8bab26f4f 2026-07-14)" data-channel="1.97.1" data-search-js="search-fd9372ac.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../../static.files/main-fcd733ba.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc fn"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">player_enter_background_audio</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../jellytau_lib/index.html">jellytau_<wbr>lib</a><span class="version">0.11.1</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In jellytau_<wbr>lib::<wbr>commands::<wbr>player</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../index.html">jellytau_lib</a>::<wbr><a href="../index.html">commands</a>::<wbr><a href="index.html">player</a></div><h1>Function <span class="fn">player_<wbr>enter_<wbr>background_<wbr>audio</span> <button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../../src/jellytau_lib/commands/player/mod.rs.html#790-893">Source</a> </span></div><pre class="rust item-decl"><code>pub async fn player_enter_background_audio(
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player: State<'_, <a class="struct" href="struct.PlayerStateWrapper.html" title="struct jellytau_lib::commands::player::PlayerStateWrapper">PlayerStateWrapper</a>>,
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session: State<'_, <a class="struct" href="struct.MediaSessionManagerWrapper.html" title="struct jellytau_lib::commands::player::MediaSessionManagerWrapper">MediaSessionManagerWrapper</a>>,
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db: State<'_, <a class="struct" href="../storage/struct.DatabaseWrapper.html" title="struct jellytau_lib::commands::storage::DatabaseWrapper">DatabaseWrapper</a>>,
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item: <a class="struct" href="struct.PlayItemRequest.html" title="struct jellytau_lib::commands::player::PlayItemRequest">PlayItemRequest</a>,
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position_seconds: <a class="primitive" href="https://doc.rust-lang.org/1.97.1/std/primitive.f64.html">f64</a>,
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) -> <a class="enum" href="https://doc.rust-lang.org/1.97.1/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="struct" href="struct.PlayerStatus.html" title="struct jellytau_lib::commands::player::PlayerStatus">PlayerStatus</a>, <a class="struct" href="https://doc.rust-lang.org/1.97.1/alloc/string/struct.String.html" title="struct alloc::string::String">String</a>></code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Enter background-audio mode: hand playback of the currently-watched video off
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to the native ExoPlayer <em>audio</em> path so the audio keeps playing while the app
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is backgrounded/locked, with no client-side video decode (UR-040).</p>
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<p><code>stream_url</code> MUST be an audio-only URL (see
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<code>get_audio_only_stream_url_for_video</code>). The item is created as
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<code>MediaType::Audio</code> so it starts an audio session and loads into the native
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backend with <code>mediaType="audio"</code> — the WebView <code><video></code> is torn down on the
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frontend side, so exactly one audio source is ever active.</p>
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<p>This deliberately goes through the queue-based <code>play_item</code> path (NOT a
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side-channel) so end-of-track lands in <code>on_playback_ended</code>, which already
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honors the sleep timer (Time/Episodes/EndOfTrack) and drives autoplay-next.
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The sleep-timer state is intentionally left untouched by the handoff.</p>
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<p>TRACES: UR-040 | DR-052 | UT-061, IT-013</p>
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</div></details></section></div></main></body></html> |