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<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>Chapter聽6.聽Containers</title><link rel="stylesheet" href="default.css" type="text/css"><meta name="generator" content="DocBook XSL Stylesheets V1.73.2"><link rel="start" href="index.html" title="MPlayer - The Movie Player"><link rel="up" href="index.html" title="MPlayer - The Movie Player"><link rel="prev" href="faq.html" title="Chapter聽5.聽Frequently Asked Questions"><link rel="next" href="video-formats.html" title="6.1.聽Video formats"><link rel="preface" href="howtoread.html" title="How to read this documentation"><link rel="chapter" href="intro.html" title="Chapter聽1.聽Introduction"><link rel="chapter" href="install.html" title="Chapter聽2.聽Installation"><link rel="chapter" href="usage.html" title="Chapter聽3.聽Usage"><link rel="chapter" href="cd-dvd.html" title="Chapter聽4.聽CD/DVD usage"><link rel="chapter" href="faq.html" title="Chapter聽5.聽Frequently Asked Questions"><link rel="chapter" href="containers.html" title="Chapter聽6.聽Containers"><link rel="chapter" href="codecs.html" title="Chapter聽7.聽Codecs"><link rel="chapter" href="video.html" title="Chapter聽8.聽Video output devices"><link rel="chapter" href="audio.html" title="Chapter聽9.聽Audio output devices"><link rel="chapter" href="tv.html" title="Chapter聽10.聽TV"><link rel="chapter" href="radio.html" title="Chapter聽11.聽Radio"><link rel="chapter" href="ports.html" title="Chapter聽12.聽Ports"><link rel="chapter" href="mencoder.html" title="Chapter聽13.聽Basic usage of MEncoder"><link rel="chapter" href="encoding-guide.html" title="Chapter聽14.聽Encoding with MEncoder"><link rel="appendix" href="bugreports.html" title="Appendix聽A.聽How to report bugs"><link rel="appendix" href="bugs.html" title="Appendix聽B.聽Known bugs"><link rel="appendix" href="skin.html" title="Appendix聽C.聽MPlayer skin format"><link rel="appendix" href="history.html" title="Appendix聽D.聽History"><link rel="section" href="video-formats.html" title="6.1.聽Video formats"><link rel="section" href="audio-formats.html" title="6.2.聽Audio formats"></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">Chapter聽6.聽Containers</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="faq.html">Prev</a>聽</td><th width="60%" align="center">聽</th><td width="20%" align="right">聽<a accesskey="n" href="video-formats.html">Next</a></td></tr></table><hr></div><div class="chapter" lang="en"><div class="titlepage"><div><div><h2 class="title"><a name="containers"></a>Chapter聽6.聽Containers</h2></div></div></div><div class="toc"><dl><dt><span class="sect1"><a href="video-formats.html">6.1. Video formats</a></span></dt><dd><dl><dt><span class="sect2"><a href="video-formats.html#mpg-vob-dat">6.1.1. MPEG files</a></span></dt><dt><span class="sect2"><a href="video-formats.html#avi">6.1.2. AVI files</a></span></dt><dt><span class="sect2"><a href="video-formats.html#asf-wmv">6.1.3. ASF/WMV files</a></span></dt><dt><span class="sect2"><a href="video-formats.html#mov">6.1.4. QuickTime/MOV files</a></span></dt><dt><span class="sect2"><a href="video-formats.html#vivo">6.1.5. VIVO files</a></span></dt><dt><span class="sect2"><a href="video-formats.html#fli">6.1.6. FLI files</a></span></dt><dt><span class="sect2"><a href="video-formats.html#realmedia">6.1.7. RealMedia (RM) files</a></span></dt><dt><span class="sect2"><a href="video-formats.html#nuppelvideo">6.1.8. NuppelVideo files</a></span></dt><dt><span class="sect2"><a href="video-formats.html#yuv4mpeg">6.1.9. yuv4mpeg files</a></span></dt><dt><span class="sect2"><a href="video-formats.html#film">6.1.10. FILM files</a></span></dt><dt><span class="sect2"><a href="video-formats.html#roq">6.1.11. RoQ files</a></span></dt><dt><span class="sect2"><a href="video-formats.html#ogg">6.1.12. OGG/OGM files</a></span></dt><dt><span class="sect2"><a href="video-formats.html#sdp">6.1.13. SDP files</a></span></dt><dt><span class="sect2"><a href="video-formats.html#pva">6.1.14. PVA files</a></span></dt><dt><span class="sect2"><a href="video-formats.html#nsv">6.1.15. NSV files</a></span></dt><dt><span class="sect2"><a href="video-formats.html#matroska">6.1.16. Matroska files</a></span></dt><dt><span class="sect2"><a href="video-formats.html#nut">6.1.17. NUT files</a></span></dt><dt><span class="sect2"><a href="video-formats.html#gif">6.1.18. GIF files</a></span></dt></dl></dd><dt><span class="sect1"><a href="audio-formats.html">6.2. Audio formats</a></span></dt><dd><dl><dt><span class="sect2"><a href="audio-formats.html#mp3">6.2.1. MP3 files</a></span></dt><dt><span class="sect2"><a href="audio-formats.html#ogg-vorbis">6.2.2. OGG/OGM files (Vorbis)</a></span></dt><dt><span class="sect2"><a href="audio-formats.html#cdda">6.2.3. CD audio</a></span></dt><dt><span class="sect2"><a href="audio-formats.html#xmms">6.2.4. XMMS</a></span></dt></dl></dd></dl></div><p>
It is important to clarify a common mistake. When people see a file with a
<tt class="filename">.AVI</tt> extension, they immediately conclude that it is
not an MPEG file. That is not true. At least not entirely. Contrary to
popular belief such a file <span class="emphasis"><em>can</em></span> contain MPEG-1 video.
</p><p>
You see, a <span class="bold"><strong>codec</strong></span> is not the same as a
<span class="bold"><strong>container format</strong></span>.
Examples of video <span class="bold"><strong>codecs</strong></span> are: MPEG-1, MPEG-2,
MPEG-4 (DivX), Indeo5, 3ivx.
Examples of container <span class="bold"><strong>formats</strong></span> are:
MPG, AVI, ASF.
</p><p>
In theory, you can put an OpenDivX video and MP3 audio
into an <span class="bold"><strong>MPG container</strong></span>. However, most
players will not play it, since they expect MPEG-1 video and MP2 audio (unlike
<span class="bold"><strong>AVI</strong></span>, <span class="bold"><strong>MPG</strong></span>
does not have the necessary fields to describe its video and audio streams).
Or you might put MPEG-1 video into an AVI file.
<a class="ulink" href="http://ffmpeg.org/" target="_top">FFmpeg</a> and
<a class="link" href="mencoder.html" title="Chapter聽13.聽Basic usage of MEncoder"><span class="application">MEncoder</span></a>
can create these files.
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