aboutsummaryrefslogtreecommitdiff
path: root/doc/ffmpeg-doc.texi
diff options
context:
space:
mode:
authorStefano Sabatini2010-06-01 14:00:44 +0000
committerStefano Sabatini2010-06-01 14:00:44 +0000
commit9f41ed5a7ef89d4d0afafa00da7515aa7869d468 (patch)
tree184cd344d656e2b8eecb97969c6c4dbe891cd249 /doc/ffmpeg-doc.texi
parentacbdbf815ae8c84a4b4c7687a9af63cf04e12492 (diff)
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. Originally committed as revision 23409 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'doc/ffmpeg-doc.texi')
-rw-r--r--doc/ffmpeg-doc.texi20
1 files changed, 14 insertions, 6 deletions
diff --git a/doc/ffmpeg-doc.texi b/doc/ffmpeg-doc.texi
index 6b2193eb3a..6f2038d512 100644
--- a/doc/ffmpeg-doc.texi
+++ b/doc/ffmpeg-doc.texi
@@ -917,9 +917,11 @@ FFserver (see the FFserver documentation). When FFmpeg will be a
video player it will also be used for streaming :-)
@chapter Tips
+@c man begin TIPS
@itemize
-@item For streaming at very low bitrate application, use a low frame rate
+@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
-@item The parameter 'q' which is displayed while encoding is the current
+@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.
-@item If your computer is not fast enough, you can speed up the
+@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).
-@item To have very low audio bitrates, reduce the sampling frequency
+@item
+To have very low audio bitrates, reduce the sampling frequency
(down to 22050 Hz for MPEG audio, 22050 or 11025 for AC-3).
-@item To have a constant quality (but a variable bitrate), use the option
+@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).
-@item When converting video files, you can use the '-sameq' option which
+@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
+@c man end TIPS
@bye