[gst-cvs] wingo gst-plugins: gst-plugins/tools/

[Andy W. <wi...@us...>]

CVS Root:       /cvsroot/gstreamer
Module:         gst-plugins
Changes by:     wingo
Date:           Fri Feb 22 2002  07:09:35 PST

Log message:
pull good old filterstamp back out of the attic

Added files:
    tools           : README.filterstamp filterstamp.sh

Links:
http://cvs.sf.net/cgi-bin/viewcvs.cgi/gstreamer/gst-plugins/tools/README.filterstamp?rev=1.1&content-type=text/vnd.viewcvs-markup
http://cvs.sf.net/cgi-bin/viewcvs.cgi/gstreamer/gst-plugins/tools/filterstamp.sh?rev=1.1&content-type=text/vnd.viewcvs-markup

====Begin Diffs====
--- NEW FILE: README.filterstamp ---
filterstamp.sh is a script to copy a filter and change filenames and all
occurrences of the old name to the new name.

This is used for writing new audio filters. The best one to copy for now is
passthrough; it works on raw/audio int or float data.

If your new filter is called StereoPan, for example, then do this :

cd gst
../tools/filterstamp.sh Passthrough StereoPan
cd stereopan
make

(Please note the upper- and lower-case !)

You should also add a line to configure.ac to make sure the Makefiles are built
correctly. Just search for "passthrough" and add corresponding "stereopan" (or
whatever your plugin is) lines.

Register it, then try it out.  It shouldn't do anything !

Now edit the filter.func in the new directory; this file contains the body
of the main processing loop.

--- NEW FILE: filterstamp.sh ---
#!/bin/bash

# copies from gstreamer filter boilerplate
# to new filter
# changing file names and function references

# th...@ap...

# modified 23 aug 2001 ap...@eo...:
# conform better to gtk naming conventions (GstFoo->gst_foo in functions, etc)

if [ "$1" = "" ]
then
  echo "please specify the filter to copy FROM (e.g. Passthrough)"
  exit
fi

if [ "$2" = "" ]
then
  echo "please specify the filter to copy TO (e.g. NewFilter)"
  exit
fi

FROM=$1
TO=$2
FROM_LC=`echo $FROM | tr [A-Z] [a-z]`
TO_LC=`echo $TO | tr [A-Z] [a-z]`
FROM_UC=`echo $FROM | tr [a-z] [A-Z]`
TO_UC=`echo $TO | tr [a-z] [A-Z]`
FROM_LC_UNDERSCORE=`echo $FROM | perl -n -p -e 's/([a-z])([A-Z])/$1_$2/g; tr/A-Z/a-z/'`
TO_LC_UNDERSCORE=`echo $TO | perl -n -p -e 's/([a-z])([A-Z])/$1_$2/g; tr/A-Z/a-z/'`

echo "Copying filter boilerplate $FROM to new filter $TO..."

if [ ! -d $FROM_LC ]
then
  echo "Filter directory $FROM_LC does not exist !"
  exit
fi

if [ -d $TO_LC ]
then
  echo "Filter directory $TO_LC already exists !"
  exit
fi

cp  -r $FROM_LC $TO_LC

cd $TO_LC

for a in *$FROM_LC*; do mv $a `echo $a | sed s/$FROM_LC/$TO_LC/g`; done

perl -i -p -e "s/$FROM/$TO/g" *
perl -i -p -e "s/${FROM_LC_UNDERSCORE}_/${TO_LC_UNDERSCORE}_/g" *
perl -i -p -e "s/$FROM_LC/$TO_LC/g" *
perl -i -p -e "s/$FROM_UC/$TO_UC/g" *