mirror of
https://github.com/mackron/miniaudio.git
synced 2026-04-22 00:06:59 +02:00
David Reid
324 lines
11 KiB
HTML
324 lines
11 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<title>miniaudio - A single file audio playback and capture library.</title>
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<meta name="description" content="miniaudio is a single file audio playback and capture library written in C.">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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body {
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/*
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a.doc-navigation:hover {
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background-color:#c5ecc5;
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*/
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padding-left:5em;
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}
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</style>
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</head>
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<body style="margin:0; padding:0">
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<div style="background-color:#003800; color:#bfa792;">
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<div style="max-width:100%; width:100%; margin:0 auto;">
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<table class="header-link-table" style="border-collapse:collapse; border-spacing:0; padding:0; padding-right:1em;">
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<tr>
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<td style="padding:0.75em; width:100%; text-align:left;">
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<table class="header-link-table" style="border-collapse:collapse; margin:0; padding:0">
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<tr>
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<td style="vertical-align:bottom; padding:0em; padding-right:2em;"><a href="../../index.html"><img src="../../img/logo1_large_white.png" style="height:24px; min-width:100%;"></a></td>
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<td><a href="../manual/index.html">Documentation</a></td>
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<td><a href="index.html">Examples</a></td>
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</tr>
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</table>
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</td>
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<td style="padding:0.1em; width:25%; text-align:right; vertical-align:center;">
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<a href="https://discord.gg/9vpqbjU"><img src="../../img/Discord-Logo-White.svg" style="margin:0; padding:0; height:32px; width:32px;"></a>
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</td>
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<td style="padding:0.1em; width:25%; text-align:right; vertical-align:center;">
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<a href="https://twitter.com/mackron"><img src="../../img/twitter_white.png" style="margin:0; padding:0; height:32px; width:32px;"></a>
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</td>
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<td style="padding:0.1em; padding-right:1em; width:25%; text-align:right; vertical-align:center;">
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<a href="https://github.com/mackron/miniaudio"><img src="../../img/github_white.png" style="margin:0; padding:0; height:24px; width:24px;"></a>
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</td>
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</tr>
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</table>
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</div>
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</div>
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<div style="background-color:#fff; padding-bottom:0em; border-top:solid 1px #003800; background-color:#eee;">
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<table border="0" style="margin:0 auto; width:100%; border-collapse:collapse; border:solid 0px #000; table-layout:fixed;"><tr>
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<td valign="top" style="width:20em; padding:0; margin:0; border-right:solid 0px #000;"><div style="position:relative; height:100%; width:100%; border:solid 0px #000; padding:0; margin:0;">
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<a href="../index.html" class="doc-navigation">Documentation Home</a><a href="../manual/index.html" class="doc-navigation">Programming Manual</a><a href="index.html" class="doc-navigation ">Examples</a><a href="fixed_size_callback.html" class="doc-navigation doc-navigation-l1 ">Fixed Size Callback</a><a href="simple_capture.html" class="doc-navigation doc-navigation-l1 ">Simple Capture</a><a href="simple_duplex.html" class="doc-navigation doc-navigation-l1 ">Simple Duplex</a><a href="simple_enumeration.html" class="doc-navigation doc-navigation-l1 doc-navigation-active">Simple Enumeration</a><a href="simple_loopback.html" class="doc-navigation doc-navigation-l1 ">Simple Loopback</a><a href="simple_looping.html" class="doc-navigation doc-navigation-l1 ">Simple Looping</a><a href="simple_mixing.html" class="doc-navigation doc-navigation-l1 ">Simple Mixing</a><a href="simple_playback.html" class="doc-navigation doc-navigation-l1 ">Simple Playback</a><a href="simple_playback_android_test.html" class="doc-navigation doc-navigation-l1 ">Simple Playback Android Test</a><a href="simple_playback_sine.html" class="doc-navigation doc-navigation-l1 ">Simple Playback Sine</a><a href="../api/index.html" class="doc-navigation" style="border-bottom:none;">API Reference</a></div></td><td valign="top" style="padding:1em; border-left:solid 1px #bbb;">
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<h1>Simple Enumeration</h1><p style="overflow:hidden;">
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Demonstrates how to enumerate over devices.
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</p>
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<p style="overflow:hidden;">
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Device enumaration requires a <span style="font-family:monospace;">ma_context</span> object which is initialized with <span style="font-family:monospace;">ma_context_init()</span>. Conceptually, the
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context sits above a device. You can have many devices to one context.
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</p>
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<p style="overflow:hidden;">
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If you use device enumeration, you should explicitly specify the same context you used for enumeration in the call to
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<span style="font-family:monospace;">ma_device_init()</span> when you initialize your devices.</p>
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<div style="font-family:monospace; border:solid 1px #003800; border-left:solid 0.5em #003800; margin:1em 0em; width:100%;"><pre style="margin:0.5em 1em; padding:0; line-height:125%; overflow-x:auto;">
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<span style="color:#666666">#define</span> MINIAUDIO_IMPLEMENTATION
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<span style="color:#666666">#include</span> <span style="color:#cc3300">"../miniaudio.h"</span>
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<span style="color:#666666">#include</span> <span style="color:#cc3300"><stdio.h></span>
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<span style="color:#0033ff">int</span> main(<span style="color:#0033ff">int</span> argc, <span style="color:#0033ff">char</span>** argv)
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{
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<span style="color:#0099cc">ma_result</span> result;
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<span style="color:#0099cc">ma_context</span> context;
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<span style="color:#0099cc">ma_device_info</span>* pPlaybackDeviceInfos;
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<span style="color:#0099cc">ma_uint32</span> playbackDeviceCount;
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<span style="color:#0099cc">ma_device_info</span>* pCaptureDeviceInfos;
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<span style="color:#0099cc">ma_uint32</span> captureDeviceCount;
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<span style="color:#0099cc">ma_uint32</span> iDevice;
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<span style="color:#0033ff">if</span> (ma_context_init(NULL, 0, NULL, &context) != MA_SUCCESS) {
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printf(<span style="color:#cc3300">"Failed to initialize context.\n"</span>);
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<span style="color:#0033ff">return</span> -2;
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}
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result = ma_context_get_devices(&context, &pPlaybackDeviceInfos, &playbackDeviceCount, &pCaptureDeviceInfos, &captureDeviceCount);
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<span style="color:#0033ff">if</span> (result != MA_SUCCESS) {
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printf(<span style="color:#cc3300">"Failed to retrieve device information.\n"</span>);
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<span style="color:#0033ff">return</span> -3;
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}
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printf(<span style="color:#cc3300">"Playback Devices\n"</span>);
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<span style="color:#0033ff">for</span> (iDevice = 0; iDevice < playbackDeviceCount; ++iDevice) {
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printf(<span style="color:#cc3300">" %u: %s\n"</span>, iDevice, pPlaybackDeviceInfos[iDevice].name);
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}
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printf(<span style="color:#cc3300">"\n"</span>);
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printf(<span style="color:#cc3300">"Capture Devices\n"</span>);
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<span style="color:#0033ff">for</span> (iDevice = 0; iDevice < captureDeviceCount; ++iDevice) {
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printf(<span style="color:#cc3300">" %u: %s\n"</span>, iDevice, pCaptureDeviceInfos[iDevice].name);
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}
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ma_context_uninit(&context);
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(<span style="color:#0033ff">void</span>)argc;
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(<span style="color:#0033ff">void</span>)argv;
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<span style="color:#0033ff">return</span> 0;
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}
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</pre></div></td>
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</tr></table>
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</div>
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<table style="margin:0 auto; padding:1em 0px; text-align:center;">
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<tr>
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<td style="vertical-align:center;"><a style="padding:0;" href="https://discord.gg/9vpqbjU"><img src="../../img/Discord-Logo-White.svg" style="padding:0; height:32px; width:32px;"></a></td>
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<td style="vertical-align:center;"><a style="padding:0;" href="https://twitter.com/mackron"><img src="../../img/twitter_white.png" style="padding:0; height:32px; width:32px;"></a></td>
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<td style="vertical-align:center;"><a style="padding:0;" href="https://github.com/mackron/miniaudio"><img src="../../img/github_white.png" style="padding:0; height:24px; width:24px;"></a></td>
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</tr>
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</table>
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<div style="color:#e0d7cf; font-size:9pt; padding:2em 0px; text-align:center;">
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Copyright © 2020 David Reid<br/>
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Developed by David Reid - <a class="footer-link" href="mailto:mackron@gmail.com">mackron@gmail.com</a>
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</div>
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</body>
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</html>
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