<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>7.1. Radio input</title><link rel="stylesheet" href="default.css" type="text/css"><meta name="generator" content="DocBook XSL Stylesheets V1.75.2"><link rel="home" href="index.html" title="MPlayer - The Movie Player"><link rel="up" href="radio.html" title="Chapter 7. Radio"><link rel="prev" href="radio.html" title="Chapter 7. Radio"><link rel="next" href="video.html" title="Chapter 8. Video output devices"><link rel="preface" href="howtoread.html" title="How to read this documentation"><link rel="chapter" href="intro.html" title="Chapter 1. Introduction"><link rel="chapter" href="install.html" title="Chapter 2. Installation"><link rel="chapter" href="usage.html" title="Chapter 3. Usage"><link rel="chapter" href="advaudio.html" title="Chapter 4. Advanced audio usage"><link rel="chapter" href="cd-dvd.html" title="Chapter 5. CD/DVD usage"><link rel="chapter" href="tv.html" title="Chapter 6. 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Examples"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">7.1. Radio input</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="radio.html">Prev</a> </td><th width="60%" align="center">Chapter 7. Radio</th><td width="20%" align="right"> <a accesskey="n" href="video.html">Next</a></td></tr></table><hr></div><div class="sect1" title="7.1. Radio input"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="radio-input"></a>7.1. Radio input</h2></div></div></div><p> This section is about how to enable listening to radio from a V4L-compatible radio tuner. See the man page for a description of radio options and keyboard controls. </p><div class="sect2" title="7.1.1. Compilation"><div class="titlepage"><div><div><h3 class="title"><a name="radio-compilation"></a>7.1.1. Compilation</h3></div></div></div><div class="procedure"><ol class="procedure" type="1"><li class="step" title="Step 1"><p> First, you have to recompile <span class="application">MPlayer</span> using <tt class="filename">./configure</tt> with <tt class="option">--enable-radio</tt> and (if you want capture support) <tt class="option">--enable-radio-capture</tt>. </p></li><li class="step" title="Step 2"><p> Make sure your tuner works with another radio software in Linux, for example <span class="application">XawTV</span>. </p></li></ol></div></div><div class="sect2" title="7.1.2. Usage tips"><div class="titlepage"><div><div><h3 class="title"><a name="radio-tips"></a>7.1.2. Usage tips</h3></div></div></div><p> The full listing of the options is available in the manual page. Here are just a few tips: </p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p> Use the <tt class="option">channels</tt> option. An example: </p><pre class="screen">-radio channels=104.4-Sibir,103.9-Maximum</pre><p> Explanation: With this option, only the 104.4 and 103.9 radio stations will be usable. There will be a nice OSD text upon channel switching, displaying the channel's name. Spaces in the channel name must be replaced by the "_" character. </p></li><li class="listitem"><p> There are several ways of capturing audio. You can grab the sound either using your sound card via an external cable connection between video card and line-in, or using the built-in ADC in the saa7134 chip. In the latter case, you have to load the <code class="systemitem">saa7134-alsa</code> or <code class="systemitem">saa7134-oss</code> driver. </p></li><li class="listitem"><p> <span class="application">MEncoder</span> cannot be used for audio capture, because it requires a video stream to work. So your can either use <span class="application">arecord</span> from ALSA project or use <tt class="option">-ao pcm:file=file.wav</tt>. In the latter case you will not hear any sound (unless you are using a line-in cable and have switched line-in mute off). </p></li></ul></div><p> </p></div><div class="sect2" title="7.1.3. Examples"><div class="titlepage"><div><div><h3 class="title"><a name="radio-examples"></a>7.1.3. Examples</h3></div></div></div><div class="informalexample"><p> Input from standard V4L (using line-in cable, capture switched off): </p><pre class="screen">mplayer radio://104.4</pre><p> </p></div><div class="informalexample"><p> Input from standard V4L (using line-in cable, capture switched off, V4Lv1 interface): </p><pre class="screen">mplayer -radio driver=v4l radio://104.4</pre><p> </p></div><div class="informalexample"><p> Playing second channel from channel list: </p><pre class="screen">mplayer -radio channels=104.4=Sibir,103.9=Maximm radio://2</pre><p> </p></div><div class="informalexample"><p> Passing sound over the PCI bus from the radio card's internal ADC. In this example the tuner is used as a second sound card (ALSA device hw:1,0). For saa7134-based cards either the <code class="systemitem">saa7134-alsa</code> or <code class="systemitem">saa7134-oss</code> module must be loaded. </p><pre class="screen"> mplayer -rawaudio rate=32000 radio://2/capture \ -radio adevice=hw=1.0:arate=32000:channels=104.4=Sibir,103.9=Maximm </pre><p> </p><div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Note</h3><p> When using ALSA device names colons must be replaced by equal signs, commas by periods. </p></div><p> </p></div></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="radio.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="radio.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="video.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter 7. 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