You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
333 lines
7.8 KiB
333 lines
7.8 KiB
4 years ago
|
<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>Subtitles:
|
||
|
|
</font>
|
||
|
|
</tr>
|
||
|
|
<tr>
|
||
|
|
|
||
|
|
<td>
|
||
|
|
|
||
|
|
This chapter gives a short introduction on handling and
|
||
|
|
processing subtitles with transcode and related programs.
|
||
|
|
|
||
|
|
<ul>
|
||
|
|
<li> <a href="#extsub"> <FONT FACE="Lucida,Helvetica">
|
||
|
|
DVD subtitle overlay mode with <i> -J extsub</i></font></a> <p>
|
||
|
|
<li> <a href="#subrip"><FONT FACE="Lucida,Helvetica">
|
||
|
|
generating subtitle files with <i>subrip</i></font></a><p>
|
||
|
|
<li> <a href="#subtitler"><FONT FACE="Lucida,Helvetica">
|
||
|
|
adding custom subtitles with <i> -J subtitler</i></font></a><p>
|
||
|
|
|
||
|
|
</ul>
|
||
|
|
</td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
</table>
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
<a name=extsub></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> DVD subtitle overlay mode </font>
|
||
|
|
</tr>
|
||
|
|
<tr>
|
||
|
|
<td>
|
||
|
|
|
||
|
|
transcode provides a filter plugin <i> filter_extsub.so</i> for elementary DVD
|
||
|
|
subtitle rendering in connection with <i>-x vob</i>. Use it with<p>
|
||
|
|
|
||
|
|
<table>
|
||
|
|
<tr>
|
||
|
|
<td align=left valign="top" bgcolor="#ccffcc">
|
||
|
|
transcode [...] -J extsub=<options></td>
|
||
|
|
</tr>
|
||
|
|
</table><p>
|
||
|
|
|
||
|
|
The option string looks as follows (all options default to 0): <p>
|
||
|
|
|
||
|
|
<table>
|
||
|
|
<tr>
|
||
|
|
<td align=left valign="top" bgcolor="#ccffcc">
|
||
|
|
s:h:t:f:w:a:b:p:q
|
||
|
|
</tr>
|
||
|
|
</table><p>
|
||
|
|
|
||
|
|
<ul>
|
||
|
|
|
||
|
|
<li> s subtitle track id (0-31)<br>
|
||
|
|
|
||
|
|
Use <i>tcprobe -H N</i> with N>1 to find out
|
||
|
|
if subtitle any packs are available in the program stream.<p>
|
||
|
|
|
||
|
|
|
||
|
|
<li> h offset of subtitle with respect to bottom
|
||
|
|
of frame in rows.<br>
|
||
|
|
|
||
|
|
Subtitles are placed at the bottom of the
|
||
|
|
frame. Try this option to shift them up or down.<p>
|
||
|
|
|
||
|
|
<li> t global display start time correction
|
||
|
|
in msec.<br>
|
||
|
|
If you feel, subtitles are displayed not timely,
|
||
|
|
adjust it with this option. This will affect all subtitles.<p>
|
||
|
|
|
||
|
|
|
||
|
|
<li> f fast rendering, i.e., no anti-aliasing (0=off,1=on).<br>
|
||
|
|
Anti-aliasing of the font is performed by
|
||
|
|
default. Switch it of (1) if your font is tiny
|
||
|
|
and messed up by this feature.<p>
|
||
|
|
|
||
|
|
|
||
|
|
<li> w render on post-processing (0=off,
|
||
|
|
1=on).<br>
|
||
|
|
Setting this option to 1 will render the
|
||
|
|
subtitle on post-processing instead of pre-processing.
|
||
|
|
This may improve subtitle quality but makes no
|
||
|
|
sense after extensive resizing of the frame.<p>
|
||
|
|
|
||
|
|
<li> a graylevel value a (0-255).
|
||
|
|
<li> b graylevel value b (0-255).<br>
|
||
|
|
Make another subtitle color visible with full
|
||
|
|
intensity equal to 255. May lead to fatter fonts.<p>
|
||
|
|
|
||
|
|
<li> p assign subtitle color p [0-3] to
|
||
|
|
graylevel value a.
|
||
|
|
<li> q assign subtitle color q [0-3] to graylevel value b.<br>
|
||
|
|
Shuffle the color assignment by choosing another
|
||
|
|
subtitle color between 0 and 3. Useful for black fonts on white background.<p>
|
||
|
|
|
||
|
|
</ul>
|
||
|
|
<p>
|
||
|
|
|
||
|
|
Example (1) changing color assignment:
|
||
|
|
|
||
|
|
<ul>
|
||
|
|
|
||
|
|
<li>
|
||
|
|
<table>
|
||
|
|
<tr>
|
||
|
|
<td align=left valign="top" bgcolor="#ccffcc">
|
||
|
|
-J extsub
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
|
||
|
|
this one looks not as expected without any further options.
|
||
|
|
|
||
|
|
<p>
|
||
|
|
|
||
|
|
<img align="top" src="mes0-00000.png"> <p>
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
<li>
|
||
|
|
<table>
|
||
|
|
<tr>
|
||
|
|
<td align=left valign="top" bgcolor="#ccffcc">
|
||
|
|
-J extsub=0:0:0:0:0:0:0:1:2
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
|
||
|
|
shuffle the font color assignment
|
||
|
|
using 1:2 looks like this, but has an ugly 3D effect.
|
||
|
|
|
||
|
|
<p>
|
||
|
|
|
||
|
|
<img align="top" src="mes4-00000.png"> <p>
|
||
|
|
|
||
|
|
<li>
|
||
|
|
<table>
|
||
|
|
<tr>
|
||
|
|
<td align=left valign="top" bgcolor="#ccffcc">
|
||
|
|
-J extsub=0:0:0:0:0:0:0:1:3
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
|
||
|
|
shuffle the color assignment using 1:3 looks better,
|
||
|
|
but shows white shadows that make the font fatter but blurry
|
||
|
|
|
||
|
|
<p>
|
||
|
|
|
||
|
|
<img align="top" src="mes5-00000.png"> <p>
|
||
|
|
|
||
|
|
|
||
|
|
<li>
|
||
|
|
<table>
|
||
|
|
<tr>
|
||
|
|
<td align=left valign="top" bgcolor="#ccffcc">
|
||
|
|
-J extsub=0:0:0:0:0:0:0:2:3
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
|
||
|
|
shuffle the color assignment using 2:3 seems to be perfect.
|
||
|
|
Nice and smooth looking letters.
|
||
|
|
<p>
|
||
|
|
|
||
|
|
<img align="top" src="mes6-00000.png"> <p>
|
||
|
|
|
||
|
|
|
||
|
|
<li>
|
||
|
|
<table>
|
||
|
|
<tr>
|
||
|
|
<td align=left valign="top" bgcolor="#ccffcc">
|
||
|
|
-J extsub=0:0:0:1:0:0:0:2:3
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
|
||
|
|
for comparison, we switch off anti-aliasing, see the difference?
|
||
|
|
|
||
|
|
<p>
|
||
|
|
|
||
|
|
<img align="top" src="mes7-00000.png"> <p>
|
||
|
|
|
||
|
|
|
||
|
|
</ul>
|
||
|
|
|
||
|
|
Example (2) adding another white color:
|
||
|
|
|
||
|
|
<ul>
|
||
|
|
|
||
|
|
<li>
|
||
|
|
<table>
|
||
|
|
<tr>
|
||
|
|
<td align=left valign="top" bgcolor="#ccffcc">
|
||
|
|
-J extsub
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
|
||
|
|
this one looks already perfect without any options.
|
||
|
|
|
||
|
|
<p>
|
||
|
|
|
||
|
|
<img align="top" src="sub0-00000.png"> <p>
|
||
|
|
|
||
|
|
|
||
|
|
<li>
|
||
|
|
<table>
|
||
|
|
<tr>
|
||
|
|
<td align=left valign="top" bgcolor="#ccffcc">
|
||
|
|
-J extsub=0:0:0:1
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
|
||
|
|
same as above with-out ant-aliasing.
|
||
|
|
|
||
|
|
<p>
|
||
|
|
|
||
|
|
<img align="top" src="sub1-00000.png"> <p>
|
||
|
|
|
||
|
|
|
||
|
|
<li>
|
||
|
|
<table>
|
||
|
|
<tr>
|
||
|
|
<td align=left valign="top" bgcolor="#ccffcc">
|
||
|
|
-J extsub=0:0:0:0:0:0:255
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
|
||
|
|
We make switch another color to full intensity (white) to
|
||
|
|
make the subtitle appear fatter, maybe too much.
|
||
|
|
|
||
|
|
<p>
|
||
|
|
|
||
|
|
<img align="top" src="sub2-00000.png"> <p>
|
||
|
|
|
||
|
|
|
||
|
|
<li>
|
||
|
|
<table>
|
||
|
|
<tr>
|
||
|
|
<td align=left valign="top" bgcolor="#ccffcc">
|
||
|
|
-J extsub=0:0:0:1:0:0:255
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
|
||
|
|
The above fat one without anti-aliasing.
|
||
|
|
|
||
|
|
<p>
|
||
|
|
|
||
|
|
<img align="top" src="sub3-00000.png"> <p>
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
</ul>
|
||
|
|
|
||
|
|
|
||
|
|
</table>
|
||
|
|
</table>
|
||
|
|
|
||
|
|
|
||
|
|
<a name=subrip></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>generating subtitle files</font>
|
||
|
|
</tr>
|
||
|
|
<tr>
|
||
|
|
<td>
|
||
|
|
|
||
|
|
|
||
|
|
Please find some documentation on Arne Driescher's
|
||
|
|
<i>subrip</i> program in the <code>contrib/subrip/</code> directory
|
||
|
|
or visit the <a
|
||
|
|
href=http://subtitleripper.sourceforge.net/>project page</a>
|
||
|
|
for more information.
|
||
|
|
</table>
|
||
|
|
</table>
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
<a name=subtitler></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> generating custom subtitles</font>
|
||
|
|
</tr>
|
||
|
|
<tr>
|
||
|
|
<td>
|
||
|
|
|
||
|
|
|
||
|
|
Please find some documentation on Jan Panteltje's
|
||
|
|
<i>subtitler</i> plugin in the <code>filter/subtitler/</code> directory
|
||
|
|
or visit the <a
|
||
|
|
href=http://www.home.zonnet.nl/panteltje/subtitles/>
|
||
|
|
project page</a>
|
||
|
|
for more information.
|
||
|
|
|
||
|
|
</table>
|
||
|
|
</table>
|
||
|
|
|
||
|
|
|
||
|
|
<!-- hhmts start -->
|
||
|
|
Last modified: Thu May 16 12:52:34 CEST 2002
|
||
|
|
<!-- hhmts end -->
|
||
|
|
|
||
|
|
</body> </html>
|