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Remove duplication of imlib2 vhook documentation.

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It is more complete at doc/hooks.texi

Originally committed as revision 9976 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Ramiro Polla 2007-08-07 02:43:50 +00:00
parent 8ed43d6b05
commit e48f83fe47
1 changed files with 0 additions and 54 deletions
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54
vhook/imlib2.c
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@ -2,60 +2,6 @@
* imlib2 based hook
* Copyright (c) 2002 Philip Gladstone
*
* This module implements a text overlay for a video image. Currently it
* supports a fixed overlay or reading the text from a file. The string
* is passed through strftime so that it is easy to imprint the date and
* time onto the image.
*
* You may also overlay an image (even semi-transparent) like TV stations do.
* You may move either the text or the image around your video to create
* scrolling credits, for example.
*
* Text fonts are being looked for in FONTPATH
*
* Options:
*
* -C <rgb.txt> The filename to read RGB color names from
* Defaults if none specified:
* /usr/share/X11/rgb.txt
* /usr/lib/X11/rgb.txt
* -c <color> The color of the text
* -F <fontname> The font face and size
* -t <text> The text
* -f <filename> The filename to read text from
* -x <expression> X coordinate of text or image
* -y <expression> Y coordinate of text or image
* -i <filename> The filename to read a image from
* -R <expression> Value for R color
* -G <expression> Value for G color
* -B <expression> Value for B color
* -A <expression> Value for Alpha channel
*
* Expressions are functions of:
* N // frame number (starting at zero)
* H // frame height
* W // frame width
* h // image height
* w // image width
* X // previous x
* Y // previous y
*
Examples:
FONTPATH="/cygdrive/c/WINDOWS/Fonts/"
FONTPATH="$FONTPATH:/usr/share/imlib2/data/fonts/"
FONTPATH="$FONTPATH:/usr/X11R6/lib/X11/fonts/TTF/"
export FONTPATH
ffmpeg -i input.avi -vhook \
'vhook/imlib2.dll -x W*(0.5+0.25*sin(N/47*PI))-w/2 -y H*(0.5+0.50*cos(N/97*PI))-h/2 -i /usr/share/imlib2/data/images/bulb.png'
-acodec copy -sameq output.avi
ffmpeg -i input.avi -vhook \
'vhook/imlib2.dll -c red -F Vera.ttf/20 -x 150+0.5*N -y 70+0.25*N -t Hello'
-acodec copy -sameq output.avi
* This module is very much intended as an example of what could be done.
*
* One caution is that this is an expensive process -- in particular the