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| author | gabucino <gabucino@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2002-08-10 20:26:43 +0000 |
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| committer | gabucino <gabucino@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2002-08-10 20:26:43 +0000 |
| commit | 5461fc33baed9455a39b7ae1a4793a330251758c (patch) | |
| tree | dd1894f8c247738be33a7d140a2d787e08d2e80a /DOCS/encoding.html | |
| parent | 9a0b6547554c6fb1378cd04fac876e91e86c9e55 (diff) | |
| download | mpv-5461fc33baed9455a39b7ae1a4793a330251758c.tar.bz2 mpv-5461fc33baed9455a39b7ae1a4793a330251758c.tar.xz | |
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diff --git a/DOCS/encoding.html b/DOCS/encoding.html index 580a87db56..e5105068ac 100644 --- a/DOCS/encoding.html +++ b/DOCS/encoding.html @@ -15,11 +15,12 @@ <P><B><A NAME="overview">2.4.1 Overview</A></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/ASF/OGG/DVD/VCD/VOB/MPG/MOV/VIV/FLI/RM/NUV/NET</B>) to other MPlayer-playable -formats (see below). It can encode with various codecs, like <B>DivX4</B> (1 or -2 passes), libavcodec, <B>PCM</B>/<B>MP3</B>/<B>VBRMP3</B> audio. Also has -powerful plugin system for video manipulation.</P> + designed to encode MPlayer-playable movies + (<B>AVI/ASF/OGG/DVD/VCD/VOB/MPG/MOV/VIV/FLI/RM/NUV/NET</B>) to other + MPlayer-playable formats (see below). It can encode with various codecs, like + <B>DivX4</B> (1 or 2 passes), libavcodec, + <B>PCM</B>/<B>MP3</B>/<B>VBR MP3</B> audio. Also has powerful plugin system + for video manipulation.</P> <P><B><A NAME="compilation">2.4.2 Compilation</A></B></P> @@ -52,7 +53,7 @@ powerful plugin system for video manipulation.</P> </UL> <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> + <I>avifile</I> library installed. <B>MEncoder</B> doesn't need it at all.</P> <P><B><A NAME="features">2.4.3 MEncoder features</A></B></P> @@ -71,7 +72,7 @@ powerful plugin system for video manipulation.</P> <LI>stream copying</LI> <LI>input A/V synchronizing (PTS-based, can be disabled with -mc 0 option)</LI> <LI>FPS correction with <CODE>-ofps</CODE> option (useful when encoding - 29.97fps VOB to 24fps AVI)</LI> + 29.97fps VOB to 24fps AVI)</LI> <LI>using our very powerful plugin system (crop, expand, flip, postprocess, rotate, scale, rgb/yuv conversion)</LI> <LI>can encode DVD/VOBsub <B>AND</B> text subtitles into the output file</LI> @@ -81,26 +82,30 @@ powerful plugin system for video manipulation.</P> <B>Planned features:</B> <UL> <LI>even wider variety of available en/decoding formats/codecs - (creating VOB files with DivX4/Indeo5/VIVO streams :)</LI> + (creating VOB files with DivX4/Indeo5/VIVO streams :)</LI> <LI>audio encoding from v4l (DONE for FreeBSD ?)</LI> </UL> <P><B><A NAME="2pass">2.4.3.1 Encoding 2 or 3-pass DivX4</A></B></P> -<P><U><B>2-pass encoding:</B></U> 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 -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> +<P><U><B>2-pass encoding:</B></U> 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 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> <P>This example shows how to encode a DVD to a 2-pass DivX4 AVI. Just two -commands are needed:<BR> -<CODE> rm frameno.avi</CODE> - remove this file, which - can come from a previous 3-pass encoding (it interferes with current one)<BR> -<CODE> mencoder -dvd 2 -lavcopts vcodec=mpeg4:more_options - -o movie.avi -pass 1<BR> - mencoder -dvd 2 -lavcopts vcodec=mpeg4:more_options -o movie.avi -pass 2</CODE></P> + commands are needed:<BR> + <CODE> rm frameno.avi</CODE> - remove this file, which + can come from a previous 3-pass encoding (it interferes with current + one)<BR> + <CODE> mencoder -dvd 2 -lavcopts + -vcodec=mpeg4:more_options -o movie.avi -pass 1<BR> + mencoder -dvd 2 -lavcopts vcodec=mpeg4:more_options + -o movie.avi -pass 2</CODE></P> <P><U><B>3-pass encoding:</B></U> this is an extension of 2-pass encoding, where the audio encoding takes place in a separate pass. This method enables @@ -143,29 +148,33 @@ commands are needed:<BR> <P><CODE> rm frameno.avi</CODE> - remove this file, which can come from a previous 3-pass encoding (it interferes with current one)<BR> -<CODE> mencoder -dvd 2 -ovc frameno - -o frameno.avi</CODE><BR> -<CODE> mencoder -dvd 2 - -lavcopts vcodec=mpeg4:more_options -oac copy -o movie.avi -pass 1<BR> - mencoder -dvd 2 - -lavcopts vcodec=mpeg4:more_options -oac copy -o movie.avi -pass 2</CODE> + <CODE> mencoder -dvd 2 -ovc frameno + -o frameno.avi<BR> + mencoder -dvd 2 + -lavcopts vcodec=mpeg4:more_options -oac copy -o movie.avi -pass 1<BR> + mencoder -dvd 2 + -lavcopts vcodec=mpeg4:more_options -oac copy -o movie.avi -pass 2</CODE> </P> <P><U><B>2 or 3-pass encoding using internal libavcodec controller:</B></U> -Optionally you can use libavcodec's internal 2 or 3-pass mode, it may gives you -better final rate accuracy than using the external, DivX4-inspired 2-pass rate -controler with libavcodec.</P> + Optionally you can use libavcodec's internal 2 or 3-pass mode, it may give + you better final rate accuracy than using the external, DivX4-inspired 2-pass + rate controler with libavcodec.</P> <UL> -<LI><B>2-pass encoding:</B><BR> -<CODE>rm -f lavc_stats.txt<BR> -mencoder -dvd 2 -ovc lavc -lavcopts vcodec=mpeg4:vpass=1 (audio-options) -o movie.avi<BR> -mencoder -dvd 2 -ovc lavc -lavcopts vcodec=mpeg4:vpass=2 (audio-options) -o movie.avi</CODE></LI> -<LI><B>3-pass encoding:</B><BR> -<CODE>rm -f frameno.avi lavc_stats.txt<BR> -mencoder -dvd 2 -ovc frameno (audio-options) -o frameno.avi<BR> -mencoder -dvd 2 -ovc lavc -lavcopts vcodec=mpeg4:vpass=1 -oac copy -o movie.avi<BR> -mencoder -dvd 2 -ovc lavc -lavcopts vcodec=mpeg4:vpass=2 -oac copy -o movie.avi</CODE></LI> + <LI><B>2-pass encoding:</B><BR> + <CODE>rm -f lavc_stats.txt<BR> + mencoder -dvd 2 -ovc lavc -lavcopts vcodec=mpeg4:vpass=1 (audio-options) -o + movie.avi<BR> + mencoder -dvd 2 -ovc lavc -lavcopts vcodec=mpeg4:vpass=2 (audio-options) -o + movie.avi</CODE></LI> + <LI><B>3-pass encoding:</B><BR> + <CODE>rm -f frameno.avi lavc_stats.txt<BR> + mencoder -dvd 2 -ovc frameno (audio-options) -o frameno.avi<BR> + mencoder -dvd 2 -ovc lavc -lavcopts vcodec=mpeg4:vpass=1 -oac copy -o + movie.avi<BR> + mencoder -dvd 2 -ovc lavc -lavcopts vcodec=mpeg4:vpass=2 -oac copy -o + movie.avi</CODE></LI> </UL> <P><B><A NAME="rescaling">2.4.3.2 Rescaling movies</A></B></P> @@ -185,7 +194,9 @@ mencoder -dvd 2 -ovc lavc -lavcopts vcodec=mpeg4:vpass=2 -oac copy -o movie.avi< fast bilinear.</P> <P>Usage:<BR> -<CODE> mencoder sample-svcd.mpg -lavcopts vcodec=mpeg4:more_options -vop scale=640:480 -sws 2 -o output.avi</CODE></P> + <CODE> mencoder sample-svcd.mpg -lavcopts + vcodec=mpeg4:more_options -vop scale=640:480 -sws 2 -o + output.avi</CODE></P> <P><B><A NAME="copying">2.4.3.3 Stream copying</A></B></P> @@ -194,26 +205,28 @@ mencoder -dvd 2 -ovc lavc -lavcopts vcodec=mpeg4:vpass=2 -oac copy -o movie.avi< <B>copy</B> them. This section is about <B>copying</B>.</P> <UL> - <LI><B>Video stream</B> (option <CODE>-ovc copy</CODE>): nice stuff can be done :)<BR> - Like, putting (not converting!) FLI or VIVO or MPEG1 video into an AVI file! - Of course only <B>MPlayer</B> can play such files :) And it probably has no - real life value at all. Rationally: video stream copying can be useful for - example when only the audio stream has to be encoded (like, uncompressed PCM - to MP3).</LI> + <LI><B>Video stream</B> (option <CODE>-ovc copy</CODE>): nice stuff can be + done :)<BR> + Like, putting (not converting!) FLI or VIVO or MPEG1 video into + an AVI file! Of course only <B>MPlayer</B> can play such files :) And it + probably has no real life value at all. Rationally: video stream copying + can be useful for example when only the audio stream has to be encoded + (like, uncompressed PCM to MP3).</LI> <LI><B>Audio stream</B> (option <CODE>-oac copy</CODE>): straightforward. - It is possible to take an external audio file (MP3, AC3, Vorbis) and mux it - into the output stream. Use the <CODE>-audiofile <filename></CODE> - option for this.</LI> + It is possible to take an external audio file (MP3, Vorbis) and mux it + into the output stream. Use the <CODE>-audiofile <filename></CODE> + option for this.</LI> </UL> <P><B><A NAME="fixing">2.4.3.4 Fixing AVIs with broken index or interleaving</A></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. It also fixes files with broken interleaving, -thus the <CODE>-ni</CODE> option won't be needed for them anymore.</P> + <B>MEncoder</B> generates the index. Of course this cannot fix possible bugs + in the video and/or audio streams. It also fixes files with broken + interleaving, thus the <CODE>-ni</CODE> option won't be needed for them + anymore.</P> <P>Command: <CODE>mencoder -idx input.avi -ovc copy -oac copy -o output.avi</CODE></P> @@ -221,8 +234,8 @@ thus the <CODE>-ni</CODE> option won't be needed for them anymore.</P> <P><B><A NAME="libavcodec">2.4.3.5 Encoding with the libavcodec codec family</A></B></P> <P><A HREF="codecs.html#libavcodec">libavcodec</A> 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> + lot of interesting video and audio formats (currently its audio codecs are + unsupported). You can encode to the following codecs:</P> <UL> <LI>mjpeg - Motion JPEG</LI> @@ -239,7 +252,8 @@ unsupported). You can encode to the following codecs:</P> <CODE>vcodec</CODE> config, like: <CODE>-lavcopts vcodec=msmpeg4</CODE></P> <P>An example, with MJPEG compression:<BR> - <CODE> mencoder -dvd 2 -o title2.avi -ovc lavc -lavcopts vcodec=mjpeg</CODE></P> + <CODE> mencoder -dvd 2 -o title2.avi -ovc lavc + -lavcopts vcodec=mjpeg</CODE></P> <P><B><A NAME="image_files">2.4.3.6 Encoding from multiple input image files (JPEGs or PNGs)</A></B></P> @@ -288,38 +302,42 @@ unsupported). You can encode to the following codecs:</P> <P><B><A NAME="vobsub">2.4.3.7 Extracting DVD subtitles to Vobsub file</A></B></P> <P><B>MEncoder</B> is capable of extracting subtitles from a DVD into -Vobsub fomat files. They consist of a pair of files ending in <CODE>.idx</CODE> -and <CODE>.sub</CODE> and are usually packaged in a single <CODE>.rar</CODE> -archive. <B>MPlayer</B> can play these with the <CODE>-vobsub</CODE> and -<CODE>-vobsubid</CODE> options.</P> + Vobsub fomat files. They consist of a pair of files ending in + <CODE>.idx</CODE> and <CODE>.sub</CODE> and are usually packaged in a single + <CODE>.rar</CODE> archive. <B>MPlayer</B> can play these with the + <CODE>-vobsub</CODE> and <CODE>-vobsubid</CODE> options.</P> <P>You specify the basename (i.e without the <CODE>.idx</CODE> or -<CODE>.sub</CODE> extension) of the output files with <CODE>-vobsubout</CODE> -and the index for this subtitle in the resulting files with -<CODE>-vobsuboutindex</CODE>.</P> + <CODE>.sub</CODE> extension) of the output files with <CODE>-vobsubout</CODE> + and the index for this subtitle in the resulting files with + <CODE>-vobsuboutindex</CODE>.</P> <P>If the input is not from a DVD you should use <CODE>-ifo</CODE> to -indicate the <CODE>.ifo</CODE> file needed to construct the resulting -<CODE>.idx</CODE> file.</P> + indicate the <CODE>.ifo</CODE> file needed to construct the resulting + <CODE>.idx</CODE> file.</P> -<P>If the input is not from a DVD and you do not have the <CODE>.ifo</CODE> file -you will need to use the <CODE>-vobsubid</CODE> option to let it know what -language id to put in the <CODE>.idx</CODE> file.</P> +<P>If the input is not from a DVD and you do not have the <CODE>.ifo</CODE> + file you will need to use the <CODE>-vobsubid</CODE> option to let it know + what language id to put in the <CODE>.idx</CODE> file.</P> <P>Each run will append the running subtitle if the <CODE>.idx</CODE> and -<CODE>.sub</CODE> files already exist. So you should remove any before starting.</P> + <CODE>.sub</CODE> files already exist. So you should remove any before + starting.</P> <P><B>Examples</B></P> <P><I>Copying two subtitles from a DVD while doing 3-pass encoding</I><BR> - <CODE>rm subtitles.idx subtitles.sub</CODE><BR> - <CODE>mencoder -dvd 1 -vobsubout subtitles -vobsuboutindex 0 -sid 2 -o frameno.avi -ovc frameno</CODE><BR> - <CODE>mencoder -dvd 1 -oac copy -ovc divx4 -pass 1</CODE><BR> - <CODE>mencoder -dvd 1 -oac copy -ovc divx4 -pass 2 -vobsubout subtitles -vobsuboutindex 1 -sid 5</CODE></P> + <CODE>rm subtitles.idx subtitles.sub</CODE><BR> + <CODE>mencoder -dvd 1 -vobsubout subtitles -vobsuboutindex 0 + -sid 2 -o frameno.avi -ovc frameno</CODE><BR> + <CODE>mencoder -dvd 1 -oac copy -ovc divx4 -pass 1</CODE><BR> + <CODE>mencoder -dvd 1 -oac copy -ovc divx4 -pass 2 -vobsubout + subtitles -vobsuboutindex 1 -sid 5</CODE></P> <P><I>Copying a french subtitle from an MPEG file</I><BR> - <CODE>rm subtitles.idx subtitles.sub</CODE><BR> - <CODE>mencoder movie.mpg -ifo movie.ifo -vobsubout subtitles -vobsuboutindex 0 -vobsuboutid fr -sid 1</CODE></P> + <CODE>rm subtitles.idx subtitles.sub</CODE><BR> + <CODE>mencoder movie.mpg -ifo movie.ifo -vobsubout subtitles + -vobsuboutindex 0 -vobsuboutid fr -sid 1</CODE></P> <P><B><A NAME="syntax">2.4.4 Syntax</A></B></P> @@ -468,8 +486,7 @@ language id to put in the <CODE>.idx</CODE> file.</P> <P>Encoding from tuner (for tuner options <A HREF="documentation.html#tv">see the TV input section!</A>):<BR> <CODE> mencoder -tv on:driver=v4l:width=640:height=480 <options></CODE></P> -<P>For all available options, <B>check the MEncoder man page!</B> -<P> +<P>For all available options, <B>check the MEncoder man page!</B></P> </BODY> </HTML> |