[vdr] Re: script to convert multiple *vdr to cd-sized *avi

[Andreas Reichel <andreas.reichel@i-kit.de>]

without nasty line-wrapping

#!/bin/bash
#-------------------------------------------------------------------------------------------------------------
# command:	"/usr/local/bin/vdr2avi.sh 16:9" OR "/usr/local/bin/vdr2avi.sh 4:3" in 
#		path of movie files (something like /video/${MOVIENAME}/${TIMECODE}/)
# author:	Andreas Reichel 
# email: 	andreas.reichel@i-kit.de
# url:		http://www.i-kit.de
#-------------------------------------------------------------------------------------------------------------
#
# simple bash-script to transcode multiple *.vdr files to cd-sized avi-files in mpeg4-format
# use it, to convert videos recorded from dvb-cards
# use it for free, but please send me copies of modifications 
#-------------------------------------------------------------------------------------------------------------
# simple howto:
#
# 1) record the movie using vdr [1] and the linux-dvb-drivers [2]
# 2) cut the movie using vdr [1]
# 3) run this skript to convert the pva-pes formatted movie-files to ps-formated mpegII-files using 
#    pvastrumento [3] and wine [4]
# 4) run this skript in directory of movie-files to transcode [5]  
# 5) optional: burn the avi-files to cdrom
#-------------------------------------------------------------------------------------------------------------
# sources and references:
# [1] http://www.cadsoft.de/people/kls/vdr/download.htm
# [2] http://www.linuxdvb.tv/download/
# [3] http://www.offeryn.de/dv.htm
# [4] http://www.winehq.org/download.shtml
# [5] http://www.theorie.physik.uni-goettingen.de/~ostreich/transcode/#download
#-------------------------------------------------------------------------------------------------------------
EXT="vdr"				
NICELEVEL=10				# run it in background
RM_TMP_FILES=1				# set it "1" if instant removing of obsolete temporary files wanted
					# to save disk space
					# set it "0" to safe transcoding without deleting temporary files

AF=""					# initialise empty, will hold concanated filesnames later
CODEC="mpeg2"				# input-codec
OUT_MCODEC="xvid"			# xvid|divx|opendivx
MBITRATE="1400,1000,100" 		# bitrate, key-frames, crispness
RES169="640x360"
RES43="640x480"

ABITRATE="128"				# vbr using lame seems to bee broken
CDSIZE="700"				# use 700mb splitting

WINE=`which wine`			# path to wine
TRANSCODE=`which transcode`		# path to transcode
CPVAS='/usr/local/bin/cPVAS.exe'	# path to cPVAS.exe

case "${1}" in
	"16:9")	Y=80
		RES=${RES169}
		;;
	"4:3")	Y=0
		RES=${RES43}
		;;
	*)	echo "Usage: /usr/local/bin/mpeg2avi.sh 16:9|4:3"
		exit 1
		;;
esac

# test, if all needed programs are found
if test -z ${WINE}
then
	echo "Error: Wine not found in PATH"
	exit 1
fi
if test -z ${TRANSCODE}
then 
	echo "Error: Wine not found in PATH"
	exit 1
fi
if test ! -s ${CPVAS}
then
	echo "Error: cPVAS.exe not found" 
	exit 1	
fi

	
for F in `ls *.${EXT}`
do
	FN=`basename ${F} .${EXT}`
	
	if `test $[${FN}] -gt 0`
	then
		
		#demux video, first create job-file
		echo -e "offeryn pvas job v002016 # DO NOT DELETE THIS LINE\n\044JOB\ndemux ${FN}.${EXT} ${FN}.mpv ${FN}.mpa\naudio 1\nvideo 1\n\044PARMS\nloglevel 2\nfixstart 1\nsync 1\ndropgop 1\ndropwronggop 1\nstrongaudio 1\nshortscan 0\nscanseq 200\nsetbr 1\nsetvbr 1\nsetavg 1\nadjusttc 1\npacksize 0\nsplitsize 0\noverlap 1\nspliteven 0\nsplitaudioFMT 1\ngoppts 1" > ${FN}.ajb
		chmod 0644 ${FN}.ajb
		nice -n ${NICELEVEL} ${WINE} -- ${CPVAS} ${FN}.ajb > ${FN}.log
		
		#get video-frames in movie
		FRAMES=`awk '/^Video:[ 0123456789.]+/ {match($0,/[0123456789.]+/); print substr($0,RSTART,RLENGTH)}' ${FN}.log`
		test $? -ne 0 && (echo "ERROR: ${F}, demuxing"; exit 1)
		test ${RM_TMP_FILES} -gt 0 && rm -f ${FN}.${EXT}
		test ${RM_TMP_FILES} -gt 0 && rm -f ${FN}.ajb
	
		#first loop, get vbr-settings and the -s option from astat-plugin
		NORMALIZE=`nice -n ${NICELEVEL} transcode -x ${CODEC} -y ${OUT_MCODEC} -i ${FN}.mpv -p ${FN}.mpa  -R 1 -O -V -M 2 -c 0-${FRAMES} -w ${MBITRATE} -j ${Y},0,${Y},0 -Z ${RES} -J astat -b ${ABITRATE} | awk '/-s[ 0123456789.]/ {match($0,/-s [0123456789.]+/); print substr($0,RSTART,RLENGTH)}'`
		test $? -ne 0 && (echo "ERROR: ${F}, first loop"; exit 1)
	
		#second loop, make the movie using the calculated settings
		nice -n ${NICELEVEL} transcode -x ${CODEC} -y ${OUT_MCODEC} -i ${FN}.mpv -p ${FN}.mpa  -o ${FN}.avi -R 2 -O -V -M 2 -c 0-${FRAMES} -w ${MBITRATE} -j ${Y},0,${Y},0 -Z ${RES} -b ${ABITRATE} ${NORMALIZE}
		test $? -ne 0 && (echo "ERROR: ${F}, second loop"; exit 1)
		
		test ${RM_TMP_FILES} -gt 0 && rm -f ${FN}.mpv ${FN}.mpa		# remove temp-files
		AF="${AF} ${FN}.avi"						# concanate filenames	
	fi
done

#get name of parent-dir as moviename
DIRNAME=`(cd ..; pwd)`
TOP_DIRNAME=`(cd ../.. ; pwd)`
MOVIENAME=`basename ${DIRNAME} ${TOP_DIRNAME}`

# merge avifiles and remove them
avimerge -i ${AF} -o ${MOVIENAME}.avi
#test $? -eq 0 && exit 1
test ${RM_TMP_FILES} -gt 0 && rm -f ${AF}

#split in cd-sized chunks and clean up
avisplit -i ${MOVIENAME}.avi -o ${MOVIENAME} -s ${CDSIZE}
test ${RM_TMP_FILES} -gt 0 && rm -f ${MOVIENAME}.avi *.log
exit 0		


-- 
 _________________________________________________________________________

 Andreas Reichel                                 +49 0174-3262-499  :Phone
 Hasenweg 2c                              andreas.reichel@i-kit.de  :Email
 D-04463 Grosspoesna, Germany                         www.i-kit.de  :HTTP
 _________________________________________________________________________


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