[FFmpeg-cvslog] r23409 - trunk/doc/ffmpeg-doc.texi
stefano
subversion
Tue Jun 1 16:00:45 CEST 2010
Author: stefano
Date: Tue Jun 1 16:00:44 2010
New Revision: 23409
Log:
Fix texi2pod.pl rendering of the Tips section by putting each @item
command on its own line, and create a corresponding "TIPS" man page
section.
Note that such section is not displayed, as currently only sections
with pre-defined names are rendered.
Modified:
trunk/doc/ffmpeg-doc.texi
Modified: trunk/doc/ffmpeg-doc.texi
==============================================================================
--- trunk/doc/ffmpeg-doc.texi Tue Jun 1 16:00:42 2010 (r23408)
+++ trunk/doc/ffmpeg-doc.texi Tue Jun 1 16:00:44 2010 (r23409)
@@ -917,9 +917,11 @@ FFserver (see the FFserver documentation
video player it will also be used for streaming :-)
@chapter Tips
+ at c man begin TIPS
@itemize
- at item For streaming at very low bitrate application, use a low frame rate
+ at item
+For streaming at very low bitrate application, use a low frame rate
and a small GOP size. This is especially true for RealVideo where
the Linux player does not seem to be very fast, so it can miss
frames. An example is:
@@ -928,30 +930,36 @@ frames. An example is:
ffmpeg -g 3 -r 3 -t 10 -b 50k -s qcif -f rv10 /tmp/b.rm
@end example
- at item The parameter 'q' which is displayed while encoding is the current
+ at item
+The parameter 'q' which is displayed while encoding is the current
quantizer. The value 1 indicates that a very good quality could
be achieved. The value 31 indicates the worst quality. If q=31 appears
too often, it means that the encoder cannot compress enough to meet
your bitrate. You must either increase the bitrate, decrease the
frame rate or decrease the frame size.
- at item If your computer is not fast enough, you can speed up the
+ at item
+If your computer is not fast enough, you can speed up the
compression at the expense of the compression ratio. You can use
'-me zero' to speed up motion estimation, and '-intra' to disable
motion estimation completely (you have only I-frames, which means it
is about as good as JPEG compression).
- at item To have very low audio bitrates, reduce the sampling frequency
+ at item
+To have very low audio bitrates, reduce the sampling frequency
(down to 22050 Hz for MPEG audio, 22050 or 11025 for AC-3).
- at item To have a constant quality (but a variable bitrate), use the option
+ at item
+To have a constant quality (but a variable bitrate), use the option
'-qscale n' when 'n' is between 1 (excellent quality) and 31 (worst
quality).
- at item When converting video files, you can use the '-sameq' option which
+ at item
+When converting video files, you can use the '-sameq' option which
uses the same quality factor in the encoder as in the decoder.
It allows almost lossless encoding.
@end itemize
+ at c man end TIPS
@bye
More information about the ffmpeg-cvslog
mailing list