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| author | gabucino <gabucino@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2001-12-24 23:00:07 +0000 |
|---|---|---|
| committer | gabucino <gabucino@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2001-12-24 23:00:07 +0000 |
| commit | 0beed038c23ad28f73beb4cf25fc41ce6b452f44 (patch) | |
| tree | 3e828533ac495bfb927b9b313085b7b789832750 /DOCS/encoding.html | |
| parent | 62ca4bb318462f8e65ea9a5335bec1a62dc4f918 (diff) | |
| download | mpv-0beed038c23ad28f73beb4cf25fc41ce6b452f44.tar.bz2 mpv-0beed038c23ad28f73beb4cf25fc41ce6b452f44.tar.xz | |
some quick updates for the prerelease
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@3722 b3059339-0415-0410-9bf9-f77b7e298cf2
Diffstat (limited to 'DOCS/encoding.html')
| -rw-r--r-- | DOCS/encoding.html | 77 |
1 files changed, 63 insertions, 14 deletions
diff --git a/DOCS/encoding.html b/DOCS/encoding.html index c4c4f79fe8..baf4599468 100644 --- a/DOCS/encoding.html +++ b/DOCS/encoding.html @@ -5,7 +5,8 @@ <P><B><A NAME=2.4>2.4. Encoding with MEncoder</A></B></P> -<A NAME=2.4.1><P><B><I>Overview</I></B> +<P><B><A NAME=2.4.1>2.4.1. Overview</B></P> + <P><B>MEncoder</B> (<B>MPlayer</B>'s Movie Encoder) is a simple movie encoder, designed to encode MPlayer-playable movies (<B>AVI/DVD/VCD/VOB/MPG/MOV/VIV/NET</B>) to other MPlayer-playable formats (see @@ -14,15 +15,19 @@ passes) video, <B>PCM</B>/<B>MP3</B>/<B>VBRMP3</B> audio. Also has stream copying abilities. In the future, there will be cropping, resizing filters, and other interesting stuff.</P> -<A NAME=2.4.2><P><B><I>Compiling</I></B> +<P><B><A NAME=2.4.2>2.4.2. Compiling</B></P> + +<P> <UL> - <LI>read <B>MPlayer</B>'s compilation instructions, it contains info about + <LI><B>OPTIONAL</B> - read <B>MPlayer</B>'s compilation instructions, it contains info about how to install <I>libdvdread</I> for <B>DVD</B> support, etc.</LI> - <LI>download the newest <B>DivX4linux</B> libs + <LI><B>OPTIONAL</B> - download the newest <B>DivX4linux</B> libs from <A HREF="http://avifile.sourceforge.net/download.htm">avifile.sourceforge.net</A>, and have them PROPERLY installed. This is needed for DivX4 (1/2 pass) encoding. And since this is mandatory (now), MEncoder is Linux-only.</LI> - <LI>download and compile <B>libmp3lame</B> (from lame 3.89beta or lame CVS).<BR> + <LI><B>OPTIONAL</B> - for libavcodec support, install libavcodec as + described in the <A HREF="codecs.html#2.2.1.2">libavcodec section</A>.</LI> + <LI><B>OPTIONAL</B> - download and compile <B>libmp3lame</B> (from lame 3.89beta or lame CVS).<BR> <B>WARNING : DO NOT COMPILE LAME WITH <U>GCC 2.96</U> ! It won't work properly !</B><BR> This @@ -43,7 +48,9 @@ other interesting stuff.</P> <P>You are ready. As you probably know, other encoding tools need the <I>avifile</I> library installed. <B>MEncoder</B> doesn't need it at all.</P> -<A NAME=2.4.3><P><B><I>MEncoder features</I></B> : +<P><B><A NAME=2.4.3>2.4.3. MEncoder features</B></P> + +<P> <UL> <LI>encoding from the wide range of fileformats and decoders of <B>MPlayer</B></LI> <LI>encoding from <B>V4L compatible TV tuners</B></LI> @@ -68,7 +75,7 @@ other interesting stuff.</P> </UL> </P> -<A NAME=2.4.3.1><P><B><I>Encoding 2-pass DivX4</I></B></P> +<P><B><A NAME=2.4.3.1>2.4.3.1. Encoding 2-pass DivX4</B></P> <P>The name comes from the fact that this method encodes the file <I>twice</I>. The first encoding (dubbed <I>pass</I>) creates some temporary files (*.log) with a @@ -83,7 +90,7 @@ commands are needed :<BR> -o movie.avi -pass 1<BR> mencoder -dvd 2 -ovc divx4 -oac mp3lame -divx4opts br=1100 -o movie.avi -pass 2</CODE></P> -<A NAME=2.4.3.2><P><B><I>Rescaling movies</I></B></P> +<P><B><A NAME=2.4.3.2>2.4.3.2. Rescaling movies</B></P> <P>Often the need to resize movie images' size emerges. Its reasons can be many, examples are decreasing output file size, encoding SVCDs to DivX. Ripped DVDs @@ -96,14 +103,14 @@ commands are needed :<BR> <P>The output size is specified with the <CODE>-x</CODE>, and <CODE>-y</CODE> options. Furthermore, there are 3 rescaling filters in <B>MEncoder</B>, <I>0 - : fast 1 : bilinear</I>, <I>2 : bilinear</I>, <I>bicubic</I> (best quality). + : fast bilinear</I>, <I>1 : bilinear</I>, <I>2 : bicubic</I> (best quality). They can be specified with the <CODE>-sws</CODE> option. If not specified, <B>MEncoder</B> will use 0 : fast bilinear.</P> <P>Rescaling is very simple :<BR> <CODE> mencoder sample-svcd.mpg -divx4opts br=1300 -x 640 -y 480 -sws 2 -o output.avi</CODE></P> -<A NAME=2.4.3.3><P><B><I>Stream copying</I></B></P> +<P><B><A NAME=2.4.3.3>2.4.3.3. Stream copying</B></P> <P><B>MEncoder</B> can handle input streams in two ways : <B>encode</B> or <B>copy</B> them. This section is about <B>copying</B>.</P> @@ -121,7 +128,7 @@ commands are needed :<BR> </UL> </P> -<A NAME=2.4.3.4><P><B><I>Fixing AVIs with broken index</I></B></P> +<P><B><A NAME=2.4.3.4>2.4.3.4. Fixing AVIs with broken index</B></P> <P>Easiest thing. We simply copy the video and audio streams, and <B>MEncoder</B> generates the index. Of course this cannot fix possible bugs in @@ -129,11 +136,32 @@ the video and/or audio streams.</P> <P>Command : <CODE>mencoder input.avi -ovc copy -oac copy -o output.avi</CODE></P> -<A NAME=2.4.4><P><B><I>Syntax</I></B></P> + +<P><B><A NAME=2.4.3.5>2.4.3.5. Encoding with the <I>libavcodec</I> codec family</B></P> + +<P>libavcodec provides simple encoding to a lot of interesting video and audio +formats (currently its audio codecs are unsupported). You can encode to the +following codecs :</P> + +<P> +<UL> + <LI>mjpeg - Motion JPEG</LI> + <LI>h263p - H263 Plus</LI> + <LI>mpeg4 - DivX4</LI> + <LI>msmpeg4 - the old DivX</LI> + <LI>rv10 - an old RealVideo codec</LI> + <LI>mpeg1video - MPEG1 video :)</LI> +</UL> +</P> + +<P>The first column contains the codec names that should be passed after the + <CODE>vcodec</CODE> config, like : <CODE>-lavcopts vcodec=msmpeg4</CODE></P> + +<P><B><A NAME=2.4.4>2.4.4. Syntax</B></P> <P> <CODE>mencoder [options] [input file] [options] ...</P> -<A NAME=2.4.5><P><B><I>Available options</I></B></P> +<P><B><A NAME=2.4.5>2.4.5. Available options</B></P> <P>NOTE : for all available options, <B>read the manpage !</B></P> @@ -187,6 +215,7 @@ the video and/or audio streams.</P> <B>help</B> - get list of available codecs<BR> <B>copy</B> - no encoding, just copy the stream (only from AVI/ASF now)<BR> <B>divx4</B> - encode to DivX4<BR> + <B>lavc</B> - encode with a codec from libavcodec<BR> </TD> </TR> <TR> @@ -214,6 +243,23 @@ the video and/or audio streams.</P> <B>help</B> - get help<BR> <B>br</B>=XXX - specify bitrate in kbit <4-16000> or bit <16001-24000000><BR> <B>q</B>=XXXX - quality (1-fastest, 5-best - default 5)<BR> + <B>key</B>=XXXX - keyframe interval<BR> + </TD> +</TR> +<TR> + <TD> </TD> + <TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2> + <I>-lavcopts</I></TD> + <TD> </TD> + <TD><FONT face="Verdana, Arial, Helvetica, sans-serif" size=2> + If encoding with libavcodec, you can specify its parameters here, like:<BR> + <CODE>-lavcopts vcodec=msmpeg4:vbitrate=1800:vhq:keyint=250</CODE><BR> + Common options: <B>(for full list, check the manpage!)</B><BR> + <B>help</B> - get help<BR> + <B>vcodec</B>=XXX - select videocodec (for the full list, see the libavcodec section above)<BR> + <B>vbitrate</B>=XXX - specify bitrate in kbit <4-16000> or bit <16001-24000000><BR> + <B>vhq</B> - high quality<BR> + <B>keyint</B>=XXX - keyframe interval<BR> </TD> </TR> <TR> @@ -234,13 +280,16 @@ the video and/or audio streams.</P> </TR> </TABLE> -<A NAME=2.4.6><P><B><I>Examples</I></B></P> +<P><B><A NAME=2.4.6>2.4.6. Examples</B></P> <P>Using <B>MEncoder</B> is the easiest thing on Earth. See the following :</P> <P>Encoding from DVD, title 2 :<BR> <CODE> mencoder -dvd 2 -o title2.avi</CODE></P> +<P>The same, but with libavcodec family, MJPEG compression :<BR> + <CODE> mencoder -dvd 2 -o title2.avi -ovc lavc -lavcopts vcodec=mjpeg -ffourcc mjpg</CODE></P> + <P>Encoding from DVD, title 2, with rescaling :<BR> <CODE> mencoder -dvd 2 -x 640 -y 480 -sws 2 -o title2.avi</CODE></P> |