120 lines
2.7 KiB
Bash
Executable File
120 lines
2.7 KiB
Bash
Executable File
#!/bin/bash -e
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set -e
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# defaults for all configuration values
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ENC="ffmpeg"
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OPTS="-c:v libx265 -preset fast -x265-params crf=24 -c:a libvorbis -aq 5 -c:s copy"
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SUFFIX="_new.mkv"
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SERVERS=":"
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LEN=60
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OUTDIR="/tmp/.dve" #ram
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VERBOSE="error"
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# override defaults in a ~/.dverc file
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if [ -f ~/.dverc ]; then
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source ~/.dverc
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fi
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function on_finish() {
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echo "Cleaning up temporary working files"
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rm -f "${OUTDIR}"/*
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cd "$CWD"
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echo "Finished cleaning"
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}
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function usage() {
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cat << EOF
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usage: $0 [options] filename
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This script breaks a video file up into chunks and encodes them in parallel via SSH on
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multiple hosts.
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OPTIONS:
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-h this help message.
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-l comma separated list of hosts to use to encode. (default=${SERVERS})
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-t rough length of individual video chunks, in seconds. (default=${MINLEN})
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-o encoding options. (default=${OPTS})
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-s output file suffix. (default=${SUFFIX})
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-v verbose job output. (default=false)
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EOF
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}
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# check all required helper utils
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function checkpaths() {
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for cmd in parallel ffmpeg; do
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if ! CMD=`which $cmd`; then
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echo "$cmd not found in local path."
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exit 1
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fi
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done
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}
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while getopts “hl:t:o:s:v” OPTION; do
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case $OPTION in
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h)
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usage
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exit 1
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;;
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l)
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SERVERS="$OPTARG"
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;;
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t)
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LEN="$OPTARG"
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;;
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o)
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OPTS="$OPTARG"
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;;
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s)
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SUFFIX="$OPTARG"
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;;
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v)
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VERBOSE="info"
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;;
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?)
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usage
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exit
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;;
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esac
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done
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shift $((OPTIND-1))
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if [ $# -lt 1 ]; then
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usage
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exit 1
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fi
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CWD=`pwd`
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trap on_finish EXIT
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checkpaths
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if ! mkdir -p ${OUTDIR}; then
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echo "Couldn't create temp chunk output dir ${OUTDIR}."
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exit 1
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fi
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echo "Creating chunks to encode"
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if [[ "$1" == *".AVI" || "$1" == *".avi" ]]; then
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$ENC -fflags +genpts -i "$1" -map 0 -codec copy -f segment -segment_time $LEN -segment_format matroska -v ${VERBOSE} "${OUTDIR}/chunk-%03d.orig"
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else
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$ENC -i "$1" -map 0 -codec copy -f segment -segment_time $LEN -segment_format matroska -v ${VERBOSE} "${OUTDIR}/chunk-%03d.orig"
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fi
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cd "$OUTDIR"
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echo "Running parallel encoding jobs"
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PAR_OPTS="--no-notice --gnu -j 1 -S ${SERVERS} --eta --retries 2 --nice 10"
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PAR_OPTS="$PAR_OPTS --workdir ... --transfer --return {.}.enc"
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ENC_OPTS="-y -v ${VERBOSE} -i {} ${OPTS} -f matroska {.}.enc"
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echo "parallel ${PAR_OPTS} ${ENCPATH} ${ENC_OPTS} ::: chunk-*.orig"
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parallel ${PAR_OPTS} ${ENC} ${ENC_OPTS} ::: chunk-*.orig
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echo "Combining chunks into final video file"
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echo "ffconcat version 1.0" > concat.txt
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for f in `ls chunk-*.enc | sort`; do
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echo "file $f" >> concat.txt
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done
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BASE=`basename "$1"`
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OUTFILE="${CWD}"/"${BASE%.*}${SUFFIX}"
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${ENC} -y -v ${VERBOSE} -f concat -i concat.txt -f matroska -map 0 -c copy "${OUTFILE}"
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