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diff --git a/DOCS/Polish/encoding.html b/DOCS/Polish/encoding.html index 10317adee9..4679cc95bb 100644 --- a/DOCS/Polish/encoding.html +++ b/DOCS/Polish/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> @@ -68,12 +75,12 @@ 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 with a -size of few megabytes (do not delete them yet). In the second pass, the output -file is created, using the bitrate data from the temporary file. The resulting +The first encoding (dubbed <I>pass</I>) creates some temporary files (*.log) with a +size of few megabytes, do not delete them yet (you can delete the AVI). In the second pass, the +2-pass output file is created, using the bitrate data from the temporary files. The resulting file will have much better image quality. If this is the first time you heard about this, you should consult some guides available on the Net.</P> @@ -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 @@ -94,16 +101,18 @@ commands are needed :<BR> AVI (DivX) files, you have be aware that AVI headers don't store this value. Thus, the only solution is rescaling.</P> -<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). +<P><B>MEncoder can scale input images if they come in YV12 format (for example: + ffdivx, odivx drivers, or mpeg1/2). 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 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> @@ -121,11 +130,41 @@ commands are needed :<BR> </UL> </P> -<A NAME=2.4.4><P><B><I>Syntax</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 +the video and/or audio streams.</P> + +<P>Command : <CODE>mencoder input.avi -ovc copy -oac copy -o output.avi</CODE></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>h263 - H263</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> @@ -179,6 +218,7 @@ commands are needed :<BR> <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> @@ -206,6 +246,23 @@ commands are needed :<BR> <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> @@ -226,13 +283,16 @@ commands are needed :<BR> </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> |