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20 lines
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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="The `MediaPlayer` contract: one API, interchangeable engines."><title>jellytau_lib::player::media_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 mod"><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="#">Module media_player</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">0.11.0</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Module media_<wbr>player</a></h2><h3><a href="#structs">Module Items</a></h3><ul class="block"><li><a href="#structs" title="Structs">Structs</a></li><li><a href="#enums" title="Enums">Enums</a></li><li><a href="#traits" title="Traits">Traits</a></li><li><a href="#functions" title="Functions">Functions</a></li></ul></section><div id="rustdoc-modnav"><h2><a href="../index.html">In jellytau_<wbr>lib::<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">player</a></div><h1>Module <span>media_<wbr>player</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/player/media_player.rs.html#1-328">Source</a> </span></div><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>The <code>MediaPlayer</code> contract: one API, interchangeable engines.</p>
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<p>See docs/specs/media-player-controller.md.</p>
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<p>This replaces <a href="../backend/trait.PlayerBackend.html" title="trait jellytau_lib::player::backend::PlayerBackend"><code>PlayerBackend</code></a>, which
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abstracts a <em>device</em> — <code>load</code>, then <code>seek</code> — rather than an <em>intent</em>. That
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distinction is not academic; it produced four shipped defects in one day:</p>
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<ul>
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<li>A start position was not expressible, so every caller sequenced
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<code>load()</code> + <code>seek()</code> itself and each raced the engine’s asynchronous load
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independently. Resume worked through one caller and silently failed through
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another (DR-241).</li>
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<li>Whether a stream could be seeked in place was decided <em>above</em> the engines,
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by a truth table in a command handler, for engines it does not own (DR-238).</li>
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<li>Nothing in the contract obliged an engine to report its own state, so a
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handler for mpv’s <code>pause</code> property sat unreachable and the play/pause
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control never moved (DR-239).</li>
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</ul>
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<p>The contract below is written so each of those is a compile-time or
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conformance-time failure rather than a runtime surprise.</p>
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<p>TRACES: UR-081 | DR-242</p>
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</div></details><h2 id="structs" class="section-header">Structs<a href="#structs" class="anchor">§</a></h2><dl class="item-table"><dt><a class="struct" href="struct.Capabilities.html" title="struct jellytau_lib::player::media_player::Capabilities">Capabilities</a></dt><dd>What an engine can do, so callers adapt without naming engines.</dd><dt><a class="struct" href="struct.OpenRequest.html" title="struct jellytau_lib::player::media_player::OpenRequest">Open<wbr>Request</a></dt><dd>A request to present an item.</dd><dt><a class="struct" href="struct.PlaybackSnapshot.html" title="struct jellytau_lib::player::media_player::PlaybackSnapshot">Playback<wbr>Snapshot</a></dt><dd>Everything the UI consumes, read as one coherent value.</dd></dl><h2 id="enums" class="section-header">Enums<a href="#enums" class="anchor">§</a></h2><dl class="item-table"><dt><a class="enum" href="enum.Phase.html" title="enum jellytau_lib::player::media_player::Phase">Phase</a></dt><dd>What an engine is doing right now.</dd></dl><h2 id="traits" class="section-header">Traits<a href="#traits" class="anchor">§</a></h2><dl class="item-table"><dt><a class="trait" href="trait.MediaPlayer.html" title="trait jellytau_lib::player::media_player::MediaPlayer">Media<wbr>Player</a></dt><dd>Anything that can present media.</dd></dl><h2 id="functions" class="section-header">Functions<a href="#functions" class="anchor">§</a></h2><dl class="item-table"><dt><a class="fn" href="fn.duration_from_secs.html" title="fn jellytau_lib::player::media_player::duration_from_secs">duration_<wbr>from_<wbr>secs</a></dt><dd>Seconds reported by an engine, as a <code>Duration</code>, without trusting the number.</dd></dl></section></div></main></body></html> |