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mp4tools
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mp4tools
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#!/bin/bash
[ -z "$DEV" ] && DEV=/dev/sr0
[ -z "$DVDTITLE" ] && DVDTITLE=1
[ -z "$CHAPTER" ] && CHAPTER=1
DVDLANG="${LANG:0:2}"
which neroAacEnc >/dev/null && export AAC_ENCODER=nero
[ -z "$DEBUG" ] && export MSG='-msglevel all=0:statusline=5:avsync=5'
[ "$1" = 'dvd://' ] && export DVDOPTS="-dvd-device $DEV -alang $DVDLANG -chapter $CHAPTER -cache 16384"
trap clean_tmp SIGINT
trap clean_tmp SIGQUIT
trap clean_tmp SIGKILL
trap clean_tmp EXIT
#clean_tmp [exitcode]
clean_tmp()
{
[ -z "$KEEPTEMP" ] && rm -f /tmp/*.$$.*
exit ${1:-1}
}
#green <string>
green()
{
echo -e "\n\e[32m$1\e[39;49m"
}
#red <string>
rederr()
{
echo -e "\n\e[31m$1\e[39;49m"
}
FPS=
HEIGTH=
WIDTH=
CHANNELS=
#analyse <infile>
analyse()
{
green "Analysing input file"
mplayer $DVDOPTS -frames 0 -identify -ao null -vo null "$1" 2>/dev/null |fgrep ID_ >/tmp/info.$$.txt
RET=$?
fgrep -q ID_VIDEO /tmp/info.$$.txt && HAS_VIDEO=1
fgrep -q ID_AUDIO /tmp/info.$$.txt && HAS_AUDIO=1
if [ -z "$HAS_AUDIO$HAS_VIDEO" ]
then
rederr "No streams found, encoding failed"
clean_tmp
fi
FPS=$(awk -F= '/ID_VIDEO_FPS/{print$2}' /tmp/info.$$.txt)
[ -z "$OFPS" ] && OFPS=$FPS
OFPS="$(bc <<< "if ($OFPS<=30) $OFPS else 25")"
HEIGHT=$(awk -F= '/ID_VIDEO_HEIGHT/{print$2}' /tmp/info.$$.txt)
WIDTH=$(awk -F= '/ID_VIDEO_WIDTH/{print$2}' /tmp/info.$$.txt)
CHANNELS=$(awk -F= '/ID_AUDIO_NCH/{print$2}' /tmp/info.$$.txt |tail -n1)
if fgrep -q ID_CLIP_INFO_N /tmp/info.$$.txt
then
TAGS=$(awk -F= '/ID_CLIP_INFO_N=/{print$2}' /tmp/info.$$.txt)
for i in $(seq 0 $TAGS)
do
fgrep -q "ID_CLIP_INFO_NAME$i=Title" /tmp/info.$$.txt && TITLE=$(awk -F= "/ID_CLIP_INFO_VALUE$i=/{print\$2}" /tmp/info.$$.txt)
fgrep -q "ID_CLIP_INFO_NAME$i=Artist" /tmp/info.$$.txt && ARTIST=$(awk -F= "/ID_CLIP_INFO_VALUE$i=/{print\$2}" /tmp/info.$$.txt)
fgrep -q "ID_CLIP_INFO_NAME$i=Album" /tmp/info.$$.txt && ALBUM=$(awk -F= "/ID_CLIP_INFO_VALUE$i=/{print\$2}" /tmp/info.$$.txt)
fgrep -q "ID_CLIP_INFO_NAME$i=Year" /tmp/info.$$.txt && YEAR=$(awk -F= "/ID_CLIP_INFO_VALUE$i=/{print\$2}" /tmp/info.$$.txt)
fgrep -q "ID_CLIP_INFO_NAME$i=Genre" /tmp/info.$$.txt && GENRE=$(awk -F= "/ID_CLIP_INFO_VALUE$i=/{print\$2}" /tmp/info.$$.txt)
done
fi
[ $HAS_VIDEO ] && cropdetect "$1"
return $RET
}
#cropdetect <infile>
cropdetect()
{
green "Detecting crop area..."
CROPDETECT="$(mplayer $DVDOPTS "$1" -benchmark -vo null -ac null -vf cropdetect -frames 1000 2>/dev/null |fgrep '[CROP]' |egrep -o -- 'crop=([[:digit:]]{1,4}:){3}[[:digit:]]{1,4}' |tail -n1)"
CWIDTH=$(echo "$CROPDETECT" |cut -d= -f2 |cut -d: -f1)
CHEIGHT=$(echo "$CROPDETECT" |cut -d= -f2 |cut -d: -f2)
if [[ -n $CROPDETECT && (( $CWIDTH < $WIDTH || $CHEIGHT < $HEIGHT )) ]]
then
if [ -n "$VF" ]
then
VF="$CROPDETECT,$VF"
else
VF="$CROPDETECT"
fi
WIDTH="$CWIDTH"
HEIGHT="$CHEIGHT"
fi
}
#scaleres <orig width> <orig height> <target width> <target height> [exact scale]
scaleres()
{
green "Scaling a $1x$2 movie to $3x$4"
if (( $1 > $3 || $2 > $4 )) # the video is wider OR taller
then
if ((($1 * 1000 / $2) > ($3 * 1000 / $4))) # orig video is wider, stretch it to fit in width
then
SCALE="scale=$3:-10"
elif ((($1 * 1000 / $2) < ($3 * 1000 / $4))) # orig wideo is taller, stretch it to fit in heigth
then
SCALE="scale=-10:$4"
else # aspect ratio is the same, just scale
SCALE="scale=$3:$4"
fi
[ -n "$5" ] && SCALE="expand=$3:$4"
fi
if [ -n "$SCALE" ]
then
[ -n "$VF" ] && SCALE=",$SCALE"
VF="$VF$SCALE"
fi
}
#cropres <orig width> <orig height> <target width> <target height>
cropres()
{
green "Cropping a $1x$2 movie to $3x$4"
if (( $1 > $3 && $2 > $4 )) # the video is wider AND taller
then
if ((($1 * 1000 / $2) > ($3 * 1000 / $4))) # orig video is wider, stretch it and crop the borders
then
CROP="scale=-10:$4,crop=$3:$4"
elif ((($1 * 1000 / $2) < ($3 * 1000 / $4))) # orig wideo is taller, stretch it and crop top/bottom
then
CROP="scale=$3:-10,crop=$3:$4"
else # aspect ratio is the same, just scale
CROP="scale=$3:$4"
fi
elif (( $1 > $3 || $2 > $4 )) # the video is wider OR taller
then
CROP="crop=$3:$4"
fi
if [ -n "$CROP" ]
then
[ -n "$VF" ] && CROP=",$CROP"
VF="$VF$CROP"
fi
}
#dvdrip <outfile>
dvdrip()
{
green "\e[32mRipping DVD..."
[ -n "$VF" ] && VF="-vf $VF"
[ -n "$OFPS" ] && OFPS="-ofps $OFPS"
mencoder $DVDOPTS $OFPS $VF -ovc lavc -lavcopts vcodec=ffvhuff -oac copy -o "$1" "dvd://$DVDTITLE" $MSG
RET=$?
[ -b "$DEV" ] && eject "$DEV"
unset VF
return $RET
}
#normalize <infile>
normalize()
{
if ! which normalize-audio >/dev/null
then
rederr "normalize-audio not found!"
return 0;
fi
green "Normalizing Audio"
dd if="$1" of="/tmp/header.$$.wav" bs=44 count=1 2>/dev/null
normalize-audio --peak "$1"
RET=$?
dd if="/tmp/header.$$.wav" of="$1" bs=44 count=1 conv=notrunc 2>/dev/null
return $RET
}
#audiorip <infile> <outfile> [filters]
audiorip()
{
[ -n "$3" ] && AF="-af $3"
green "Ripping Audio"
mplayer "$1" -benchmark -vo null -vc null -ao "pcm:fast:file=$2" $AF $MSG
}
#amrencode <infile> <outfile>
amrencode()
{
green "Encoding AMR Audio"
amrenc "$1" "$2"
RET=$?
MP4BOX_AOPTS="-add $2"
return $RET
}
#neroAacEnc <infile> <outfile> <params>
neroaacenc()
{
neroAacEnc -if "$1" -of /tmp/audio.$$.mp4 $3
RET=$?
MP4Box -raw 1 /tmp/audio.$$.mp4
mv /tmp/audio.$$_track1 "$2"
[ -z "$KEEPTEMP" ] && rm -f /tmp/audio.$$.mp4
return $RET
}
#aacenc <infile> <outfile> [quality]
aacenc()
{
green "Encoding AAC Audio"
if [ "$AAC_ENCODER" = 'nero' ]
then
neroaacenc "$1" "$2" "-lc -q ${3:-0.20}"
RET=$?
else
faac --mpeg-vers 4 -o "$2" "$1"
RET=$?
fi
MP4BOX_AOPTS="-add $2"
return $RET
}
#aacplusencode <infile> <outfile> [quality]
aacplusencode()
{
green "Encoding AAC+ Audio"
if [ "$AAC_ENCODER" = 'nero' ]
then
[ "$CHANNELS" = 2 ] && PS='v2'
neroaacenc "$1" "$2" "-he$PS -q ${3:-0.15}"
RET=$?
else
aacplusenc "$1" "$2" 32
RET=$?
fi
MP4BOX_AOPTS="-sbrx -add $2"
return $RET
}
#xvidenc <infile> <outfile> [options] [bitrate]
xvidenc()
{
if [ -z "$VF" ]
then
VF=harddup
else
VF="$VF,harddup"
fi
VF="-vf $VF"
[ -n "$OFPS" ] && MOFPS="-fps $OFPS"
[ -n "$OFPS" ] && OFPS="-ofps $OFPS"
VB="${4:-500}"
XVIDOPTS="bitrate=$VB:${3:-max_bframes=0:chroma_opt:lumi_mask}"
green "Encoding MPEG4 Video (1st pass)"
mencoder "$1" $VF $OFPS -nosound -o /dev/null -of rawvideo -ovc xvid -xvidencopts $XVIDOPTS:pass=1:turbo -passlogfile /tmp/xvidenc.$$.log $MSG
green "Encoding MPEG4 Video (2nd pass)"
mencoder "$1" $VF $OFPS -nosound -o "$2" -of rawvideo -ovc xvid -xvidencopts $XVIDOPTS:pass=2 -passlogfile /tmp/xvidenc.$$.log $MSG
RET=$?
[ -z "$KEEPTEMP" ] && rm -f /tmp/xvidenc.$$.log
MP4BOX_VOPTS="$MOFPS -add $2"
return $RET
}
#h264enc <infile> <outfile> [options] [quality]
h264enc()
{
if [ -z "$VF" ]
then
VF=harddup
else
VF="$VF,harddup"
fi
VF="-vf $VF"
[ -n "$OFPS" ] && MOFPS="-fps $OFPS"
[ -n "$OFPS" ] && OFPS="-ofps $OFPS"
VQ="${4:-22}"
X264OPTS="crf=$VQ:$3:threads=auto"
green "Encoding H.264 Video"
mencoder "$1" $VF $OFPS -o "$2" -of rawvideo -ovc x264 -nosound -x264encopts "$X264OPTS" $MSG
RET=$?
[ -z "$KEEPTEMP" ] && rm -f /tmp/x264enc.$$.log
MP4BOX_VOPTS="$MOFPS -add $2"
return $RET
}
#avmux <outfile>
# filetype is determined by the extension:
# * => plain mp4
# 3gp => 3gpp
# m4v => iPod movie
avmux()
{
green "Muxing"
MP4Box -brand mp42 -no-iod -no-sys -new $MP4BOX_OPTS $MP4BOX_VOPTS $MP4BOX_AOPTS "$1"
RET=$?
echo -en "\nsaved to "
green "$1"
return $RET
}