#!/bin/sh

# Process a gst-plugins-bad tarball to remove

# unwanted GStreamer plugins.

#

# See https://bugzilla.redhat.com/show_bug.cgi?id=532470

# for details

#

# Bastien Nocera <bnocera@redhat.com> - 2010

#

SOURCE="$1"

NEW_SOURCE=`echo $SOURCE | sed 's/bad-/bad-free-/'`

DIRECTORY=`echo $SOURCE | sed 's/\.tar\.xz//'`

ALLOWED="

aacparse

adpcmdec

adpcmenc

aiff

aiffparse

amrparse

asfmux

audioparsers

audiovisualizers

autoconvert

bayer

camerabin

camerabin2

cdxaparse

coloreffects

colorspace

dataurisrc

dccp

debugutils

dtmf

faceoverlay

festival

fieldanalysis

freeverb

freeze

frei0r

gaudieffects

geometrictransform

h264parse

hdvparse

hls

id3tag

inter

interlace

invtelecine

ivfparse

jpegformat

jp2kdecimator

legacyresample

librfb

liveadder

mve

mpegdemux

mpeg4videoparse

mpegpsmux

mpegtsdemux

mpegtsmux

mpegvideoparse

mxf

nsf

nuvdemux

patchdetect

pcapparse

pnm

qtmux

rawparse

removesilence

rtpmux

rtpvp8

scaletempo

sdi

sdp

segmentclip

selector

smooth

speed

stereo

subenc

tta

valve

videofilters

videomaxrate

videomeasure

videoparsers

videosignal

vmnc

y4m

"

NOT_ALLOWED="

dvbsuboverlay

dvdspu

real

siren

"

error()

{

	MESSAGE=$1

	echo $MESSAGE

	exit 1

}

check_allowed()

{

	MODULE=$1

	for i in $ALLOWED ; do

		if test x$MODULE = x$i ; then

			return 0;

		fi

	done

	# Ignore errors coming from ext/ directory

	# they require external libraries so are ineffective anyway

	return 1;

}

check_not_allowed()

{

	MODULE=$1

	for i in $NOT_ALLOWED ; do

		if test x$MODULE = x$i ; then

			return 0;

		fi

	done

	return 1;

}

rm -rf $DIRECTORY

tar xJf $SOURCE || error "Cannot unpack $SOURCE"

pushd $DIRECTORY > /dev/null || error "Cannot open directory \"$DIRECTORY\""

unknown=""

for subdir in gst ext sys; do

	for dir in $subdir/* ; do

		# Don't touch non-directories

		if ! [ -d $dir ] ; then

			continue;

		fi

		MODULE=`basename $dir`

		if ( check_not_allowed $MODULE ) ; then

			echo "**** Removing $MODULE ****"

			echo "Removing directory $dir"

			rm -r $dir || error "Cannot remove $dir"

			if grep -q "AG_GST_CHECK_PLUGIN($MODULE)" configure.ac ; then

				echo "Removing element check for $MODULE"

				grep -v "AG_GST_CHECK_PLUGIN($MODULE)" configure.ac > configure.ac.new && mv configure.ac.new configure.ac

			fi

			echo "Removing Makefile generation for $MODULE"

			grep -v "$dir/Makefile" configure.ac > configure.ac.new && mv configure.ac.new configure.ac

			# Urgh

			if test $MODULE = real ; then

				grep -v "AG_GST_DISABLE_PLUGIN(real)" configure.ac > configure.ac.new && mv configure.ac.new configure.ac

			fi

			echo "Removing documentation for $MODULE"

			if grep -q "$MODULE" docs/plugins/Makefile.am ; then

				grep -v $dir docs/plugins/Makefile.am > docs/plugins/Makefile.am.new && mv docs/plugins/Makefile.am.new docs/plugins/Makefile.am

			fi

			echo

		elif test $subdir = ext  || test $subdir = sys; then

			# Ignore library or system non-blacklisted plugins

			continue;

		elif ! ( check_allowed $MODULE ) ; then

			echo "Unknown module in $dir"

			unknown="$unknown $dir"

		fi

	done

done

echo

if test "x$unknown" != "x"; then

  echo -n "Aborting due to unkown modules: "

  echo "$unknown" | sed "s/ /\n  /g"

  exit 1

fi

autoreconf

popd > /dev/null

tar cJf $NEW_SOURCE $DIRECTORY

echo "$NEW_SOURCE is ready to use"