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+<html>
+<head>
+<title> Linux Video Stream Processing Tool - Examples</title>
+<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
+<meta name="keywords" content="DVD, digital video, DV, encoder, divx,
+DivX;-), lame, source, posix, avifile, opendivx, codec, linux, AC3,
+program stream, video, audio, transcode, decoder, stream, YV12">
+</head>
+
+<body bgcolor=#CDB5CD>
+
+
+<a name=top></a>
+<table cellspacing="10" cellpadding="0" border="0" width="100%">
+ <tr>
+ <td align=left valign="top" width=30% bgcolor="#a0a0a0">
+ <table border="0" cellpadding="10" cellspacing="3" font size=+2 bgcolor="#ffffff" width=100%>
+ <td align="left" bgcolor="#e9e9e9"> <FONT
+ FACE="Lucida,Helvetica"> <font>DVD to MPEG-4</font>
+ </tr>
+ <tr>
+
+ <td>
+
+ This chapter gives an introduction to DVD to DivX
+ compression. There are actually only 2 external packages
+ required to make it work with <i>transcode</i>. The first
+ is <i>libdvdcss</i>
+ (recommended version is 0.0.3 - not 1.0.0!) required to
+ overcome the context scrambling system (CSS) and the second is a
+ modern MPEG-4 codec. See the <a href=index.html#modules>
+ modules</a> section to find out which MPEG-4 codecs are currently supported
+ and where to obtain the sources/binaries. Unless you enjoy
+ command line utilities, please take a look at the excellent
+ <a href="http://www.exit1.org/dvdrip/">dvd::rip</a>, which is
+ a full featured DVD Ripper GUI for Linux, written in
+ Perl, by Joern Reder.
+
+
+ <ul>
+ <li> <a href="#dvd1"> <FONT FACE="Lucida,Helvetica"> DVD
+ (PAL)</font></a> <br>
+ <ul>
+ <li><a href="#dvd1_43"> <FONT FACE="Lucida,Helvetica">
+ aspect ratio 4:3</font></a>
+ <li><a href="#dvd1_169"> <FONT FACE="Lucida,Helvetica">
+ aspect ratio 16:9</font></a>
+ </ul>
+
+ <br>
+
+ <li> <a href="#dvd2"> <FONT FACE="Lucida,Helvetica"> DVD
+ (NTSC)</font></a><br>
+ <ul>
+ <li><a href="#dvd2_43"> <FONT FACE="Lucida,Helvetica">
+ aspect ratio 4:3</font></a>
+ <li><a href="#dvd2_169"> <FONT FACE="Lucida,Helvetica">
+ aspect ratio 16:9</font></a>
+ </ul>
+
+ <br>
+
+ <li> <a href="#vob"> <FONT FACE="Lucida,Helvetica">
+ multiple program stream VOB chunks </font></a>
+ <br>
+
+ <ul>
+ <li><a href="#vob_mp3"> <FONT FACE="Lucida,Helvetica">
+ encoding audio to MP3</font></a>
+ <li><a href="#vob_ac3"> <FONT FACE="Lucida,Helvetica">
+ AC3 audio pass-through</font></a>
+ <li><a href="#vob_pcm"> <FONT FACE="Lucida,Helvetica">
+ LPCM audio pass-through</font></a>
+ <li><a href="#vob_mp2"> <FONT FACE="Lucida,Helvetica">
+ MP2 to MP3 audio re-encoding</font></a>
+ </ul>
+ </ul>
+
+ <ul>
+ <li> <a href="#tccat"> <FONT FACE="Lucida,Helvetica">
+ making a main title DVD backup with
+ <i>tccat</i></font></a><br>
+ </ul>
+ <p>
+
+ </td>
+ </tr>
+</table>
+</table>
+
+<a name=dvd1></a>
+<table cellspacing="10" cellpadding="0" border="0" width="100%">
+ <tr>
+ <td align=left valign="top" width=30% bgcolor="#a0a0a0">
+ <table border="0" cellpadding="10" cellspacing="3" font size=+2 bgcolor="#ffffff" width=100%>
+ <td align="left" bgcolor="#e9e9e9">
+
+ <font>PAL DVD ---> DivX 4.0 / DivX ;-)</font>
+ </tr>
+ <tr>
+ <td>
+
+ Here is a 3 step guide to convert a PAL DVD to an AVI
+ DivX movie with <FONT color=blue> MP3 </font> (default) sound under linux using
+ <i>transcode</i>:
+
+ <ul>
+ <li> (I) Put the DVD in the drive:<br>
+ We assume, that /dev/dvd
+ is a link to the actual device. The disk may be
+ encrypted and we need <i>libdvdcss</i> as a shared
+ library in the default library search path for this.
+ We first do some preprocessing with <i> tcscan </i>
+ to find out the best encoding bitrate and frame
+ parameter
+ to make
+ the main DVD title fit on 1 or 2 CDs with renormalized
+ sound. This is done by invoking the helper
+ programs
+ <i>tccat</i>, <i>tcextract</i>, <i>tcdecode</i> and
+ <i>tcscan</i>: <p>
+ <ul>
+ <li> bitrate:<br>
+
+ <FONT color=red>tccat -t dvd -T 1,-1 -i /dev/dvd |
+ tcextract -x ac3 -t vob | tcdecode -x ac3 | tcscan -x pcm</font><p>
+
+ We basically pipe all chapters (use "-1" for the
+ chapter argument of option "-T") of the main title
+ (this number may be different on your DVD) through
+ <i>tcextract</i>, where we have to supply the
+ filetype option "-t vob". The extracted AC3 stream is
+ decoded by <i>tcdecode</i> and analyzed by
+ <i>tcscan</i>.
+ The output may look like:<p>
+ <code>
+ [tcscan] audio frames=167838.40, estimated clip length=6713.54 seconds<br>
+ [tcscan] (min/max) amplitude=(-0.210/0.224), suggested volume
+ [tcscan] rescale=4.470 <br>
+ [tcscan] length: 167838 frames <br>
+ [tcscan] runtime: 6713 sec @ 25.000 fps <br>
+ [tcscan] MP3 bitrate: 128 kbps <br>
+ [tcscan] audio: 104.89 MB <br>
+ [tcscan] disk size: 650 MB | video 545.11 MB | encoder bitrate 681.17
+ kbps <br>
+ [tcscan] disk size: 700 MB | video 595.11 MB | encoder bitrate 743.65 kbps<br>
+ [tcscan] disk size: 1300 MB | video 1195.11 MB | encoder bitrate 1493.42 kbps<br>
+ [tcscan] disk size: 1400 MB | video 1295.11 MB | encoder bitrate
+ 1618.38 kbps<br><br>
+ </code>
+ and is a simple estimate for the encoder bitrate,
+ using the
+ default values for MP3 sound encoded at 128 kbps.
+ Invoke <i>tcscan -h</i> to learn about more options.
+ The main title runtime is about 1h:52m and a high
+ quality encoded movie deserves a 2 CD burn.
+ As you can see, the unrealistic high bitrate values
+ for
+ the old Win32 dll codecs are no longer valid.<br><br>
+
+ </li>
+ <li> frame parameter and aspect ratio:<br>
+
+ <FONT color=red>tccat -t dvd -T 1,-1 -i
+ /dev/dvd | tcscan -x vob</font><p>
+
+ and press "^C" after the MPEG frame parameter
+ have been displayed.
+ In this case, the output may look like
+ <p>
+ <code> found MPEG-2 video stream [0xe0] <br>
+ sequence: 720x576 4:3, 25 fps, ...
+ </code><p>
+ which means, that we need to rescale the frame
+ to
+ obtain the proper aspect ratio "4:3". Another
+ common aspect ratio is "16:9". We show below
+ suggested scaling parameter and two
+ <i>transcode</i> processing
+ modes for both cases.
+
+ </li>
+
+ </ul>
+ <p>
+
+ <li> (II) The actual encoding session (parameter grouped
+ by import/processing/export):<p>
+ <a name=dvd1_43>Example:</a><FONT color=blue> <bf>DVD title / aspect ratio "4:3"
+ / letterbox format </bf></font><p>
+
+ <table>
+ <tr>
+ <td align=left valign="top" bgcolor="#ccffcc">
+ transcode</td>
+
+ <td align=left valign="top" bgcolor="#ccffcc">
+ -i /dev/dvd/ -x dvd -T 1,-1 -V</td>
+ </tr>
+
+ <tr><td></td>
+ <td align=left valign="top" bgcolor="#ccffcc">
+ -B 1,0 -Y 76,8 -s 4.47</td>
+ </tr>
+
+ <td></td><td align=left valign="top" bgcolor="#ccffcc">
+ -t 83920,alien -y divx4 -w 1618 </td></tr>
+
+ </table>
+ <br>
+ <code>
+ [transcode] video: &nbsp; &nbsp; import frame | 720 x 576 1.25:1<br>
+[transcode] video: new aspect ratio | 720 x 544 1.32:1 (-B) <br>
+[transcode] video: &nbsp; clip frame (->) | 704 x 392
+ </code><p>
+
+ <ul>
+ <li>
+ We use slightly more than 1/2 of the total number of
+ frames "-t" or simply 1 huge file "-o
+ alien.avi" to be split in the last step.<br>
+ <li>
+ We clip off 76 lines at the top and bottom and 8
+ rows on both sides of
+ the movie "-Y 76,8" before encoding to get rid of the black bars. This is
+ only recommended for letterbox format.<br>
+ <li>In order to use the
+ fast resizing of <i> transcode</i> with option "-B", the
+ height and width must
+ be a multiple of 32. Clipping 8 columns on both
+ sides will do, in most cases they are black anyway.
+ We will get a 704x392 frame with an aspect ratio of
+ 1.32:1, which is acceptable.<br>
+ <li>
+ Optional: We might try to go for better encoding quality.
+ In this case, it is recommended to use the
+ multi-pass encoding feature found in DivX 4.0 with option "-R 1".
+ However, you need a second run with
+ identical transcode options, except "-R 2", instead of "-R 1". The first run produces a logfile,
+ which is analyzed to estimate optimal encoding parameter and to
+ achieve an average encoding bitrate, that is close to the supplied
+ value of "-w" and will fit the result onto 2
+ CD's.<br>
+ <li>Optional: Use the high-quality zoom option "-Z 720x544"
+ instead of "-B 1,0".<br>
+ <li> The option "-V" consumes less CPU/PCI
+ bandwidth and gives a big performance increase.
+ </ul>
+
+ <p>
+
+
+ <a name=dvd1_169>Example:</a> <FONT color=blue> <bf>DVD chapter mode /
+ aspect ratio "16:9" / letterbox format </bf></font><p>
+
+ <table>
+ <tr>
+ <td align=left valign="top" bgcolor="#ccffcc">
+ transcode</td>
+
+ <td align=left valign="top" bgcolor="#ccffcc">
+ -i /dev/dvd/ -x dvd -V</td>
+ </tr>
+
+ <tr><td></td>
+ <td align=left valign="top" bgcolor="#ccffcc">
+ -j 16,0 -B 5,0 -Y 40,8 -s 4.47</td>
+ </tr>
+
+ <td></td><td align=left valign="top" bgcolor="#ccffcc">
+ -U alien -y divx4 -w 1618 </td></tr>
+
+ </table>
+
+ <br>
+
+ <code>
+ [transcode] video: &nbsp; &nbsp; import frame | 720 x 576
+ 1.25:1 <br>
+ [transcode] video: &nbsp; clip frame (<-) | 720 x 544<br>
+[transcode] video: new aspect ratio | 720 x 384 1.77:1 (-B) <br>
+[transcode] video: &nbsp; clip frame (->) | 704 x 304<br>
+</code><p>
+<ul>
+<li> We clip off 16 lines at the top and the bottom of
+ the movie to use the fast resizing of <i>
+ transcode</i> to an almost ideal aspect ratio of 1.77:1.
+
+ Clipping 8 columns on both
+ sides and 40 rows at the top and the bottom removes
+ the remaining black bars prior to encoding.
+ <br>
+<li>
+ In the chapter mode "-U", the output is split into separate
+ files labeled alien-ch00.avi, alien-ch01.avi, ... which contain the
+ DVD chapters, that are known from the DVD player menu.<br>
+</ul>
+
+<p>
+
+Example: <FONT color=blue> <bf>DVD chapter #25 /
+aspect ratio "16:9"</bf></font><p>
+
+ <table>
+ <tr>
+ <td align=left valign="top" bgcolor="#ccffcc">
+ transcode</td>
+
+ <td align=left valign="top" bgcolor="#ccffcc">
+ -i /dev/dvd/ -x dvd -T 1,25 -V</td>
+ </tr>
+
+ <tr><td></td>
+ <td align=left valign="top" bgcolor="#ccffcc">
+ -j 0,8 -B 6,1 -Y 40,8 -s 4.47</td>
+ </tr>
+
+ <td></td><td align=left valign="top" bgcolor="#ccffcc">
+ -o alien-ch25.avi -y divx4 -w 1618 </td></tr>
+
+ </table>
+
+ <br>
+
+ <code>
+ [transcode] video: &nbsp; &nbsp; import frame | 720 x 576
+ 1.25:1 <br>
+ [transcode] video: &nbsp; clip frame (<-) | 704 x 576<br>
+[transcode] video: new aspect ratio | 672 x 384 1.79:1 (-B) <br>
+</code><p>
+<ul>
+ <li> We clip off 8 columns on both
+ sides of the movie to use the fast resizing of <i>
+ transcode</i>
+ to an almost ideal aspect ratio of 1.79:1. No further
+ clipping necessary for the final frame size of 672x384.
+ <br>
+ <li> The encoding stops after the selected chapter 25 is done.
+
+</ul>
+
+<p>
+
+ <li> (III) It's almost done:
+
+ <br> The <i> avisplit </i> utility allows to split
+ the
+ AVI file(s) produced by transcode. The utility may not
+ work for other AVI files. If you have one big file,
+ use
+ <br><br>
+ <FONT color=red> avisplit -i alien.avi -s 700</font><br>
+ <br> to break a huge file (AVI files have a 2 GB
+ limit) into the pieces alien.avi-0
+ and alien.avi-1 with no more than 700 MB each.
+
+ <p>
+ For the second example above, we now have quite a lot of files, each containing a chapter of the movie. Distribute the files, preserving
+ the order, onto one ore more subdirectories ./CD-N,
+ N=1,2,..., each containing no more than 650 or 700
+ MB, depending on your choice of CD. Now invoke
+ <i>avimerge</i> for each subdirectory <br><br>
+
+ <FONT color=red> avimerge -o movie-disk-N.avi -i ./CD_N/*.avi</font><br><br>
+ This will glue all the small
+ files to one big AVI file named movie-disk-N.avi,
+ where N is the number of the CD.
+ <i> avimerge</i> supports wildcards and is very
+ careful
+ in not trashing
+ your
+ existing AVI files.
+ Try to play the big files with
+ <i>mplayer</i>
+ and seek around. The audio/video synchronization
+ should be acceptable. If everything seems fine, go ahead
+ and burn your CDs.<p>
+
+ <p>
+ </ul>
+ </ul>
+</table>
+</table>
+
+
+<a name=dvd2></a>
+<table cellspacing="10" cellpadding="0" border="0" width="100%">
+ <tr>
+ <td align=left valign="top" width=30% bgcolor="#a0a0a0">
+ <table border="0" cellpadding="10" cellspacing="3" font size=+2 bgcolor="#ffffff" width=100%>
+ <td align="left" bgcolor="#e9e9e9">
+
+ <font>NTSC DVD ---> DivX </font>
+ </tr>
+ <tr>
+ <td>
+
+ Here is a 3 step guide to convert a NTSC DVD to an AVI
+ DivX movie with <FONT color=blue> MP3 </font> (default) sound under linux using
+ <i>transcode</i>:
+
+ <ul>
+ <li> (I) Put the DVD in the drive:<br>
+ Follow step (I) for the PAL DVD, with option "-f
+ 23.976024" for <i>tcscan</i>.
+
+ <p>
+
+ <li> (II) The actual encoding session (parameter grouped
+ by import/processing/export) :<p>
+ <a name=dvd2_43>Example:</a> <FONT color=blue> <bf> DVD title / aspect ratio "4:3"
+ / letterbox format </bf></font><p>
+
+ <table>
+ <tr>
+ <td align=left valign="top" bgcolor="#ccffcc">
+ transcode</td>
+
+ <td align=left valign="top" bgcolor="#ccffcc">
+ -i /dev/dvd/ -x dvd -T 1,-1 -g 720x480 -M 2 -V</td>
+ </tr>
+
+ <tr><td></td>
+ <td align=left valign="top" bgcolor="#ccffcc">
+ -X 2,0 -Y 80,8 -s 4.47</td>
+ </tr>
+
+ <td></td><td align=left valign="top" bgcolor="#ccffcc">
+ -t 83920,alien -y divx4 -w 1618 -f 23.976024</td></tr>
+
+ </table>
+
+ <br>
+
+ <code>
+ [transcode] video: &nbsp; &nbsp; import frame | 720 x 480 1.50:1<br>
+[transcode] video: new aspect ratio | 720 x 544 1.32:1 (-X) <br>
+[transcode] video: &nbsp; clip frame (->) | 704 x 384
+ </code><p>
+
+ <ul>
+ <li>
+ We use slightly more than 1/2 of the total number of
+ frames "-t" or simply 1 huge file to be split in the last step.<br>
+ <li>
+ We clip off 80 lines at the top and bottom and 8
+ rows on both sides of
+ the movie "-Y 80,8" before encoding to get rid of the black bars. This is
+ only recommended for letterbox format.<br>
+ <li>In order to use the
+ fast resizing of <i> transcode</i> with option "-X", the
+ height and width must
+ be a multiple of 32. Clipping 8 columns on both
+ sides will do, in most cases they are black anyway.
+ We will get a 704x384 frame with an aspect ratio of
+ 1.32:1, which is acceptable.<br>
+ <li> We must provide the frame parameter "-g
+ 720x480", the frame rate "-f 23.976024" and the
+ demuxer option "-M 2" to obtain a clean stream
+ at a constant frame rate.
+ </ul>
+
+ <p>
+
+
+ <a name=dvd2_169>Example:</a> <FONT color=blue> <bf>DVD chapter mode /
+ aspect ratio "16:9" / letterbox format </bf></font><p>
+
+ <table>
+ <tr>
+ <td align=left valign="top" bgcolor="#ccffcc">
+ transcode</td>
+
+ <td align=left valign="top" bgcolor="#ccffcc">
+ -i /dev/dvd/ -x dvd -g 720x480 -M 2 -V</td>
+ </tr>
+
+ <tr><td></td>
+ <td align=left valign="top" bgcolor="#ccffcc">
+ -j 16,0 -B 2,0 -Y 32,8 -s 4.47</td>
+ </tr>
+
+ <td></td><td align=left valign="top" bgcolor="#ccffcc">
+ -U alien -y divx4 -w 1618 -f 23.976024</td></tr>
+
+ </table>
+
+ <br>
+
+ <code>
+ [transcode] video: &nbsp; &nbsp; import frame | 720 x 480
+ 1.50:1 <br>
+ [transcode] video: &nbsp; clip frame (<-) | 720 x 448<br>
+ [transcode] video: new aspect ratio | 720 x 384 1.75:1 (-B) <br>
+ [transcode] video: &nbsp; clip frame (->) | 704 x 320<br>
+ </code><p>
+ <ul>
+ <li> We clip off 16 lines at the top and the bottom of
+ the movie to use the fast resizing of <i>
+ transcode</i>
+ to an almost ideal aspect ratio of 1.77:1.
+
+ Clipping 8 columns on both
+ sides and 32 rows at the top and the bottom removes
+ the remaining black bars prior to encoding.
+ <br>
+<li>
+ In the chapter mode "-U", the output is split into separate
+ files labeled alien-ch00.avi, alien-ch01.avi, ... which contain the
+ DVD chapters, that are known from the DVD player menu.<br>
+</ul>
+
+<p>
+
+ Example: <FONT color=blue> <bf>DVD chapter #10 /
+ aspect ratio "16:9" / viewing angle #2</bf></font><p>
+
+ <table>
+ <tr>
+ <td align=left valign="top" bgcolor="#ccffcc">
+ transcode</td>
+
+ <td align=left valign="top" bgcolor="#ccffcc">
+ -i /dev/dvd/ -x dvd -T 1,10,2 -g 720x480 -M 2 -V</td>
+ </tr>
+
+ <tr><td></td>
+ <td align=left valign="top" bgcolor="#ccffcc">
+ -j 0,8 -B 3,1 -s 4.47</td>
+ </tr>
+
+ <td></td><td align=left valign="top" bgcolor="#ccffcc">
+ -o alien-ch10-2.avi -y divx4 -w 1618 -f 23.976024</td></tr>
+
+ </table>
+
+ <br>
+
+ <code>
+ [transcode] video: &nbsp; &nbsp; import frame | 720 x 480
+ 1.50:1 <br>
+ [transcode] video: &nbsp; clip frame (<-) | 704 x 480<br>
+ [transcode] video: new aspect ratio | 672 x 384 1.79:1 (-B) <br>
+ </code><p>
+ <ul>
+ <li> We clip off 8 columns on both
+ sides of the movie to use the fast resizing of <i>
+ transcode</i>
+ to an almost ideal aspect ratio of 1.79:1. No further
+ clipping necessary for the final frame size of 672x384.
+ <br>
+ <li> The encoding stops after the selected chapter 10 is
+ done.
+ Here, we choose a second camera angle, if the DVD has
+ this feature.
+ </ul>
+
+<p>
+ <li> (III) It's almost done:<br>
+
+ Follow step (III) of the PAL DVD example.
+ <p>
+ </ul>
+ </ul>
+
+
+ </table>
+</table>
+
+
+<a name=vob></a>
+<table cellspacing="10" cellpadding="0" border="0" width="100%">
+ <tr>
+ <td align=left valign="top" width=30% bgcolor="#a0a0a0">
+ <table border="0" cellpadding="10" cellspacing="3" font size=+2 bgcolor="#ffffff" width=100%>
+ <td align="left" bgcolor="#e9e9e9">
+<font>Multiple MPEG
+ program stream chunks (VOB) ---> DivX</font>
+ </tr>
+ <tr>
+ <td>
+
+ Here is a 3 step guide to rip a DVD and convert the multiple VOB
+ chunks, or only a single file, using <i>transcode</i>:
+
+ <ul>
+ <li> We rip the DVD and put all VOB chunks, that make up the
+ actual movie into a subdirectory, denoted
+ here as
+ "my_movie/". For an encrypted DVD, we will need
+ <i>libdvdcss</i> under linux to do this, but this may
+ not be legal.
+ <br>
+ If you do not need DVD navigation or multiple angle
+ features,
+ the ripping is done by:<br><br>
+
+ <FONT color=red>
+ tccat -i /dev/dvd -T 1,-1 | split -b 1024m - my_movie/movie-
+ </font><p>
+
+ I assume, "/dev/dvd" is a link to the DVD
+ device and the main title is 1.
+ The DVD does not have to be mounted, just
+ put it in the drive. After some time,
+ we chunks named: movie-aa, movie-ab, ...,
+ which are, but the last, exactly 1GB.<br><br>
+ The following is also valid, if we have used other
+ programs to copy the DVD title VOBs onto the
+ harddisk.
+
+ <br>
+ It's a good idea, to let <i>tcprobe</i> take a look
+ at the files you want to encode. This is done
+ by typing:<br><br>
+
+ <FONT color=red>
+ tcprobe -i my_movie/
+ </font><p>
+
+ assuming that "my_movie/" is a directory in your
+ present work directory.
+ The output may look like<p>
+
+ <code>
+ [tcprobe] MPEG program stream<br>
+ [tcprobe] summary for my_movie/, (*) = not default, 0 = not detected<br>
+ import frame size: -g 720x480 [720x576] (*)<br>
+ aspect ratio: 16:9 (*)<br>
+ frame rate: -f 23.976 [25.000] frc=1 (*)<br>
+ audio track: -a 0 [0] -e 48000,16,2 [48000,16,2] -n 0x2000 [0x2000] <br>
+ detected (6) subtitle(s)<br>
+ </code><p>
+
+ As you can see, the auto-probing feature has
+ detected a NTSC program stream with a single AC3
+ audio track. In the following, we only need to take
+ care of the aspect ratio 16:9, but that has already been
+ explained in the previous section.<p>
+
+ <li> Now we can invoke <i>transcode</i> with the directory
+ mode, that internally concatenates all VOB
+ chunks. If
+ you need more bitrate or audio renormalization
+ information,
+ check the DVD section. The default is for MP3 audio
+ encoding:<p>
+
+ <a name=vob_mp3><h3>AC3->MP3</h3></a>
+ <table>
+ <tr>
+ <td align=left valign="top" bgcolor="#ccffcc">
+ transcode</td>
+
+ <td align=left valign="top" bgcolor="#ccffcc">
+ -i my_movie/ -V</td>
+ </tr>
+
+ <tr><td></td>
+ <td align=left valign="top" bgcolor="#ccffcc">
+ -j 0,8 -B 3,1 </td>
+ </tr>
+
+ <td></td><td align=left valign="top" bgcolor="#ccffcc">
+ -t 10000,movie -y divx4 </td></tr>
+
+ </table>
+ <p>
+
+ To enable AC3 pass-through,
+ use "-A" and use "-N 0x2000"
+ to set the proper codec
+ in the AVI file and the player. The default audio
+ track
+ is 0, which is in most cases the original language. If you
+ want to have AC3 sound in your AVI-file, use:<p>
+
+ <a name=vob_ac3><h3>AC3->AC3</h3></a>
+ <table>
+ <tr>
+ <td align=left valign="top" bgcolor="#ccffcc">
+ transcode</td>
+
+ <td align=left valign="top" bgcolor="#ccffcc">
+ -i my_movie/ -V -A</td>
+ </tr>
+
+ <tr><td></td>
+ <td align=left valign="top" bgcolor="#ccffcc">
+ -j 0,8 -B 3,1 </td>
+ </tr>
+
+ <td></td><td align=left valign="top" bgcolor="#ccffcc">
+ -t 10000,movie -y divx4 -N 0x2000</td></tr>
+
+ </table>
+ <p>
+
+ If you own a DVD with uncompressed PCM audio, e.g., audio track 1,
+ and
+ want to keep the quality, i.e., pass-through the sound, use:
+
+ <a name=vob_pcm><h3>PCM->PCM</h3></a>
+
+ <table>
+ <tr>
+ <td align=left valign="top" bgcolor="#ccffcc">
+ transcode</td>
+
+ <td align=left valign="top" bgcolor="#ccffcc">
+ -i my_movie/ -V -a 1</td>
+ </tr>
+
+ <tr><td></td>
+ <td align=left valign="top" bgcolor="#ccffcc">
+ -j 0,8 -B 3,1 </td>
+ </tr>
+
+<td></td><td align=left valign="top" bgcolor="#ccffcc">
+ -t 10000,movie -y divx4 -N 0x1</td></tr>
+
+</table>
+<p>
+
+ If your DVD has MPEG audio, it's usually MP2 format. This is
+automatically
+detected and recompression to MP3 audio is performed with the
+default settings. However, if you need to resample your sound, here
+is an example, using audio track 2:
+
+ <a name=vob_mp2><h3>MP2->MP3</h3></a>
+
+ <table>
+ <tr>
+ <td align=left valign="top" bgcolor="#ccffcc">
+ transcode</td>
+
+ <td align=left valign="top" bgcolor="#ccffcc">
+ -i my_movie/ -V -a 2</td>
+ </tr>
+
+ <tr><td></td>
+ <td align=left valign="top" bgcolor="#ccffcc">
+ -j 0,8 -B 3,1 -E 44100</td>
+ </tr>
+
+<td></td><td align=left valign="top" bgcolor="#ccffcc">
+ -t 10000,movie -y divx4</td></tr>
+
+</table>
+<p>
+
+
+ The "-t" option
+ splits the output into separate files labeled movie000.avi,
+ movie001.avi,..., with exactly
+ 10000 frames per file.
+ On my CII 533@800 MHz, I get around 11 fps for the
+ encoding, using the "-V" mode, which saves alot of
+ bandwidth.
+
+ This will take some hours, but since we work with linux,
+ we don't need to care, just wait.<p>
+
+ <ul><li>
+ If you have to interrupt your session
+ for some reason, you can always restart with the
+ help of the "-c" option. You only need to count the
+ valid files, i.e., with 10000 frames,
+ already encoded to find out the first
+ parameter for this option. Drop the last AVI file
+ for it may be broken, but this is not the case if
+ you use ^C. Also use some other
+ basename for the "-t", like "-t 10000,movie1" to make
+ sure, not to overwrite your old files. Ok, the
+ braindead seeking implementation takes some time, but this is
+ rarely used anyway.
+ </uL>
+ <p>
+
+<li> Take a look at the DVD section to learn how to avimerge
+ the AVI-files. After merging,
+ try to play the big files with
+ <i>mplayer</i>
+ and seek around. The audio/video synchronization
+ should be acceptable. If everything seems fine, go ahead
+ and burn your CDs. Note, that AC3 AVI files tend to
+ be up to 25% larger compared to MP3 audio, which is the
+ default for transcode.<p>
+
+ </ul>
+
+</table>
+</table>
+
+<a name=tccat></a>
+<table cellspacing="10" cellpadding="0" border="0" width="100%">
+ <tr>
+ <td align=left valign="top" width=30% bgcolor="#a0a0a0">
+ <table border="0" cellpadding="10" cellspacing="3" font size=+2 bgcolor="#ffffff" width=100%>
+ <td align="left" bgcolor="#e9e9e9">
+
+ <font>making a main title DVD backup with <i>tccat</i> </font>
+ </tr>
+ <tr>
+ <td>
+
+Here is a short guide for making a quick "backup" of
+your shiny new multi-angle DVD. <br>
+NOTE: Please make sure, the DVD explicitly allows you to make a backup copy.
+
+<p>
+ <ul>
+<li> (0) insert your DVD;-) <p>
+<li> (1) switch to a new empty directory $MY_PATH/DVD/ on your hard drive.<p>
+<li>(2) if /dev/dvd is a link to your block device, use tccat's new -P
+ option <p>
+
+ <table>
+ <tr>
+ <td align=left valign="top" bgcolor="#ccffcc">
+ tccat -i /dev/dvd -P 1 | split -b 1024m - VTS_01_</td>
+ </tr>
+</table>
+<p>
+ This will result in a couple of files named <br>
+
+ VTS_01_aa, VTS_01_ab, ...<br>
+
+ (once LFS is fully working, a single file should be sufficient (???),
+ i.e., "tccat -i /dev/dvd -P 1 > VTS_01_1.VOB").<p>
+
+<li>(3) copy the IFO files by hand. For this, you will need to mount the
+ DVD: <p>
+
+ <table>
+ <tr>
+ <td align=left valign="top" bgcolor="#ccffcc">
+ mount /dev/dvd /mnt/dvd
+ </tr>
+ <tr>
+ <td align=left valign="top" bgcolor="#ccffcc">
+ cp /mnt/dvd/VIDEO_TS/VIDEO_TS.IFO .
+ </tr>
+ </table>
+ <p>
+
+ You also need the title IFO file. In this case
+ cp /mnt/dvd/VIDEO_TS/VTS_01_0.IFO . <p>
+
+ <table>
+ <tr>
+ <td align=left valign="top" bgcolor="#ccffcc">
+ umount /mnt/dvd
+ </tr>
+ </table>
+ <p>
+
+
+<li>(4) rename the chunks, first file is VTS_01_1.VOB, not VTS_01_0.VOB. The
+ latter contains still pictures and the like (?). <p>
+
+
+ <table>
+ <tr>
+ <td align=left valign="top" bgcolor="#ccffcc">
+ mv VTS_01_aa VTS_01_1.VOB
+ </tr>
+ <tr>
+ <td align=left valign="top" bgcolor="#ccffcc">
+ mv VTS_01_ab VTS_01_2.VOB
+ </tr>
+ <tr>
+ <td align=left valign="top" bgcolor="#ccffcc">
+ ...
+ </tr>
+ </table>
+ <p>
+
+
+<li>(5) repeat step (2-4) for other titles, you wish to keep. In most cases,
+ the main title will do. Note that the Example after you're done: <p>
+
+ $>ls -l .<br>
+ total 5529180<br>
+ -r--r--r-- 1 bgates users 26624 Jan 13 10:29 VIDEO_TS.IFO<br>
+ -r--r--r-- 1 bgates users 124928 Jan 13 10:29 VTS_01_0.IFO<br>
+ -rw-r--r-- 1 bgates users 1073741824 Jan 13 18:05 VTS_01_1.VOB<br>
+ -rw-r--r-- 1 bgates users 1073741824 Jan 13 18:06 VTS_01_2.VOB<br>
+ -rw-r--r-- 1 bgates users 1073741824 Jan 13 18:08 VTS_01_3.VOB<br>
+ -rw-r--r-- 1 bgates users 1073741824 Jan 13 18:10 VTS_01_4.VOB<br>
+ -rw-r--r-- 1 bgates users 1073741824 Jan 13 18:12 VTS_01_5.VOB<br>
+ -rw-r--r-- 1 bgates users 287461376 Jan 13 18:12 VTS_01_6.VOB<br>
+ <p>
+<li>(6) test your copy, you need to provide an absolute path to
+ the backup directory:<p>
+
+ <table>
+ <tr>
+ <td align=left valign="top" bgcolor="#ccffcc">
+ tcprobe -i $MY_PATH/DVD -T 1
+ </tr>
+ <tr>
+ <td align=left valign="top" bgcolor="#ccffcc">
+ tccat -i $MY_PATH/DVD -T 1,C,A | [mplayer | xine | ... ] -
+ </tr>
+
+ </table>
+ <p>
+
+ and optionally check other titles, chapters (C) or even viewing angles (A).<p>
+
+<li>(7) Please note this backup copy is suitable for navigation with import
+ module "-x dvd". If you prefer the cluster mode, you need to
+ apply my cluster mini guide to this copy of your DVD or the DVD in your
+ drive. The program stream contains full navigation and angle information.
+ These information are not preserved using the -T option with tccat.<p>
+ -----<br>
+ Hint: It does not make sense to apply the procedure to all titles
+ found with tcprobe, since a lot of titles share VTS* files and IFO files.
+
+
+ </table>
+</table>
+
+
+
+<!-- hhmts start -->
+Last modified: Thu May 16 12:56:51 CEST 2002
+<!-- hhmts end -->
+
+</body> </html>