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小 （New page: {{From|https://help.ubuntu.com/community/MEncoder}} {{Languages|php5}} attachment:IconsPage/mplayer.png == What is MEncoder? == '''Mencoder''' is a companion program to the [[UbuntuHelp:MP...）
 
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{{From|https://help.ubuntu.com/community/MEncoder}}
 
{{From|https://help.ubuntu.com/community/MEncoder}}
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== What is MEncoder? ==
 
== What is MEncoder? ==
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'''Mencoder''' is a companion program to the [[UbuntuHelp:MPlayer| MPlayer media player]] that can be used to encode or transform any audio or video stream that MPlayer can read. See the RestrictedFormats wiki page for instructions for enabling non-free formats in MPlayer and gmplayer. For more information visit the [http://www.mplayerhq.hu/homepage/design7/news.html MPlayer] web site.
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'''Mencoder''' is a companion program to the [[UbuntuHelp:MPlayer| MPlayer media player]] that can be used to encode or transform any audio or video stream that [[UbuntuHelp:MPlayer|MPlayer]] can read. See the [[UbuntuHelp:RestrictedFormats|RestrictedFormats]] wiki page for instructions for enabling non-free formats in [[UbuntuHelp:MPlayer|MPlayer]] and gmplayer. For more information visit the [http://www.mplayerhq.hu/homepage/design7/news.html MPlayer] web site.
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Filters include cropping, scaling, vertical flipping, horizontal mirroring, expanding to create letterboxes, rotating, brightness/contrast, changing the aspect ratio of the video's pixels, colorspace conversion, hue/saturation, color-specific gamma correction, filters for reducing the visibiltiy of compression artifacts caused by MPEG compression (deblocking, deringing), automatic brightness/contrast enhancement (autolevel), sharpness/blur, denoising filters, and several different ways of deinterlacing. Certain filters capable of reversing telecine that do not work well with [[UbuntuHelp:MPlayer|MPlayer]] can be used as well.
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Filters include cropping, scaling, vertical flipping, horizontal mirroring, expanding to create letterboxes, rotating, brightness/contrast, changing the aspect ratio of the video's pixels, colorspace conversion, hue/saturation, color-specific gamma correction, filters for reducing the visibiltiy of compression artifacts caused by MPEG compression (deblocking, deringing), automatic brightness/contrast enhancement (autolevel), sharpness/blur, denoising filters, and several different ways of deinterlacing. Certain filters capable of reversing telecine that do not work well with MPlayer can be used as well.
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== How To Use MEncoder ==
 
== How To Use MEncoder ==
 
=== Install ===
 
=== Install ===
 
First, ensure that the mencoder package is installed with all appropriate dependencies with
 
First, ensure that the mencoder package is installed with all appropriate dependencies with
 
<pre><nowiki>
 
<pre><nowiki>
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sudo apt-get install mencoder </nowiki></code>
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sudo apt-get install mencoder </nowiki></pre>
 
You may also consider finding and install the w32codecs package, if you will be working with proprietary formats, such as wmv.
 
You may also consider finding and install the w32codecs package, if you will be working with proprietary formats, such as wmv.
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=== Basic Usage ===
 
=== Basic Usage ===
 
To use mencoder, you must specify at least an input file, an output file, an audio encoder and a video encoder. As a general framework, you can use the following to convert a video from any type that mplayer can read, to an avi file using mp3 audio encoding.
 
To use mencoder, you must specify at least an input file, an output file, an audio encoder and a video encoder. As a general framework, you can use the following to convert a video from any type that mplayer can read, to an avi file using mp3 audio encoding.
 
<pre><nowiki>
 
<pre><nowiki>
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mencoder <input_movie> -oac mp3lame -ovc lavc -o output_movie.avi </nowiki></code>
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mencoder <input_movie> -oac mp3lame -ovc lavc -o output_movie.avi </nowiki></pre>
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=== Audio/Video encoders ===
 
=== Audio/Video encoders ===
 
To see a list of audio encoders supported on your installation, run
 
To see a list of audio encoders supported on your installation, run
 
<pre><nowiki>
 
<pre><nowiki>
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mencoder -oac help </nowiki></code>
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mencoder -oac help </nowiki></pre>
 
To use an audio encoder, specify it as in the example above with -oac <audio_encoder>.
 
To use an audio encoder, specify it as in the example above with -oac <audio_encoder>.
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Similarly for video encoders, search with
 
Similarly for video encoders, search with
 
<pre><nowiki>
 
<pre><nowiki>
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mencoder -ovc help </nowiki></code>
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mencoder -ovc help </nowiki></pre>
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=== See also ===
 
=== See also ===
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* The [[UbuntuHelp:MPlayer| MPlayer wiki page]]
 
* The [[UbuntuHelp:MPlayer| MPlayer wiki page]]
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* [http://www.mplayerhq.hu/DOCS/HTML/en/encoding-guide.html Guide to Encoding with MEncoder]
 
* [http://www.mplayerhq.hu/DOCS/HTML/en/encoding-guide.html Guide to Encoding with MEncoder]
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* [http://videotranscoding.wikispaces.com/?token=23a6250c99d7f8cc9bbbbd70ce80c39f Video Transcoding Wiki]
 
* [http://videotranscoding.wikispaces.com/?token=23a6250c99d7f8cc9bbbbd70ce80c39f Video Transcoding Wiki]
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* [http://gentoo-wiki.com/HOWTO_Mencoder_Introduction_Guide MEncoder Guide on the Gentoo Wiki]
 
* [http://gentoo-wiki.com/HOWTO_Mencoder_Introduction_Guide MEncoder Guide on the Gentoo Wiki]
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[[category:CategorySoftware]]
  
 
[[category:UbuntuHelp]]
 
[[category:UbuntuHelp]]

2009年11月17日 (二) 19:56的最新版本

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<<Include(Tag/NeedsExpansion)>> IconsPage?action=AttachFile&do=get&target=mplayer.png

What is MEncoder?

Mencoder is a companion program to the MPlayer media player that can be used to encode or transform any audio or video stream that MPlayer can read. See the RestrictedFormats wiki page for instructions for enabling non-free formats in MPlayer and gmplayer. For more information visit the MPlayer web site. Filters include cropping, scaling, vertical flipping, horizontal mirroring, expanding to create letterboxes, rotating, brightness/contrast, changing the aspect ratio of the video's pixels, colorspace conversion, hue/saturation, color-specific gamma correction, filters for reducing the visibiltiy of compression artifacts caused by MPEG compression (deblocking, deringing), automatic brightness/contrast enhancement (autolevel), sharpness/blur, denoising filters, and several different ways of deinterlacing. Certain filters capable of reversing telecine that do not work well with MPlayer can be used as well.

How To Use MEncoder

Install

First, ensure that the mencoder package is installed with all appropriate dependencies with 

sudo apt-get install mencoder

You may also consider finding and install the w32codecs package, if you will be working with proprietary formats, such as wmv.

Basic Usage

To use mencoder, you must specify at least an input file, an output file, an audio encoder and a video encoder. As a general framework, you can use the following to convert a video from any type that mplayer can read, to an avi file using mp3 audio encoding. 

mencoder <input_movie> -oac mp3lame -ovc lavc -o output_movie.avi

Audio/Video encoders

To see a list of audio encoders supported on your installation, run 

mencoder -oac help

To use an audio encoder, specify it as in the example above with -oac <audio_encoder>. Similarly for video encoders, search with 

mencoder -ovc help

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See also

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取自“https://wiki.ubuntu.org.cn/index.php?title=UbuntuHelp:MEncoder&oldid=127795”