EPGrec + comskip + h.264 encoding

comskip.ini

detect_method=198
min_show_segment_length=125
max_volume=15
min_silence=20
subtitles=0
logo_threshold=0.22
logo_filter=4
volume_slip=30
output_vdr=1

config.php

<?php

// ... 略 ...

// 録画モード（option）

$RECORD_MODE = array(
        0 => array(
                'name' => 'Full TS',
                'suffix' => '.ts',
        ),
        1 => array(
                'name' => 'Minimum TS',
                'suffix' => '_tss.ts',
        ),
        2 => array(
                'name' => 'AutoEncode: h.264',
                'suffix' => '.ts',
        ),
        3 => array(
                'name' => 'AutoEncode: h.264, comskip',
                'suffix' => '.ts',
        ),
);

do-record.sh

#!/bin/bash

RECORDER=/usr/local/bin/recpt1
ENCODER=/var/www/epgrec/encoder.sh

# fix SID
case $CHANNEL in
    101|102|191|192|193)
        if [ $SID == "hd" ]; then
            SID=$CHANNEL
        fi ;;
esac
if [ -z $SID ]; then
    SID="hd"
fi

# set LNB
LNB=""
if [ `echo $CHANNEL | grep "CS"` ] || [ $CHANNEL -ge 101 ]; then
    LNB="--lnb 15"
fi

# Mode.0 Raw
if [ ${MODE} == 0 ]; then
    $RECORDER --b25 --strip $LNB $CHANNEL $DURATION $OUTPUT > /dev/null 2>&1

# Mode.1 Minimum TS
elif [ ${MODE} == 1 ]; then
    $RECORDER --b25 --strip --sid $SID $LNB $CHANNEL $DURATION $OUTPUT > /dev/null 2>&1

# Mode.n>=2 AutoEncode
elif [ ${MODE} -ge 2 ]; then
    $RECORDER --b25 --strip --sid $SID $LNB $CHANNEL $DURATION $OUTPUT > /dev/null 2>&1
    echo "$ENCODER $OUTPUT $MODE" | batch > /dev/null 2>&1
fi

encoder.sh

#!/bin/bash

#
# TS Encoder
#  usage:
#   ./encoder.sh INPUT_TS_FILE MODE
#

time2msec () {
    read -r h m s ms <<< $(echo $1 | tr '.:' ' ' )
    echo $(((h*60*60*1000)+(m*60*1000)+(s*1000)+ms))
}

timediff () {
    start=$(time2msec $1)
    end=$(time2msec $2)
    diff=$((end-start))
    hour=$((diff/(60*60*1000)))
    min=$(((diff%(60*60*1000))/(60*1000)))
    sec=$(((diff%(60*1000))/1000))
    ms=$(((diff%(60*1000))%1000))
    echo "${hour}:${min}:${sec}.${ms}"
}

FFMPEG=/usr/bin/ffmpeg
FFMPEG_VOPT="-aspect 16:9 -r 30000/1001 -f mp4 -vcodec libx264 -crf 24 -refs 4 -bf 8 -b_strategy 2 -flags +ilme+ildct -top -1 -weightp 0"
FFMPEG_AOPT="-bsf:a aac_adtstoasc -acodec aac -strict -2 -ac 2 -ar 48000 -ab 192k"
COMSKIP=/usr/local/bin/comskip
COMSKIP_INI=comskip.ini

# option detect
TS=$1
FFMPEG_INPUT=${TS}
BASE=${TS%.*}
LOG=${BASE}-encode.log
MODE=$2

echo "Start: `date`" > ${LOG}

# Run Comskip
if [ ${MODE} == 3 ]; then

    echo "Comskip: Enable" >> ${LOG}

    if [ ! -f ${BASE}.vdr ]; then
        ${COMSKIP} --ini=${COMSKIP_INI} -v 0 -t ${TS} >> ${LOG} 2>&1
    fi

    COMSKIP_TIMES=($(cat ${BASE}.vdr | cut -d " " -f 1))
    if [ $(time2msec ${COMSKIP_TIMES[0]}) -gt 60000 ]; then
        COMSKIP_TIMES=("0:00:00.00" "${COMSKIP_TIMES[@]}")
    else
        unset COMSKIP_TIMES[0]
        TIMES=("${COMSKIP_TIMES[@]}")
    fi
    COMSKIP_START=()
    COMSKIP_END=()
    COUNT=0
    for L in ${COMSKIP_TIMES[@]}
    do
        if [ `expr ${COUNT} % 2` -eq 0 ]; then
            COMSKIP_START+=(${L})
        else
            COMSKIP_END+=(${L})
        fi
        COUNT=$((${COUNT}+1))
    done

    # Split
    if [ ${COUNT} -ne 0 ]; then
        _COUNT=`expr ${#COMSKIP_END[@]} - 1`
        _FILES=()
        for N in `seq 0 ${_COUNT}`
        do
            LEN=`timediff ${COMSKIP_START[$N]} ${COMSKIP_END[$N]}`
                if [ $(time2msec ${LEN}) -gt 16000 ]; then
                echo "${N}: START=${COMSKIP_START[$N]}, END=${COMSKIP_END[$N]}. LENGTH=${LEN}" >> ${LOG}
                ${FFMPEG} -y -i ${TS} ${FFMPEG_AOPT} -vcodec copy -ss ${COMSKIP_START[$N]} -t ${LEN} ${BASE}-split${N}.ts >> ${LOG} 2>&1
                _FILES+=(${BASE}-split${N}.ts)
                fi
        done
        FFMPEG_INPUT="concat:$(IFS="|"; echo "${_FILES[*]}")"
    fi
    rm -f ${BASE}.{txt,log,logo.txt,vdr} >> ${LOG} 2>&1

fi

# Merge/Encode
${FFMPEG} -y -i "${FFMPEG_INPUT}" ${FFMPEG_AOPT} ${FFMPEG_VOPT} ${BASE}.mp4 >> ${LOG} 2>&1

# Clean Up
rm -f ${BASE}-split*.ts >> ${LOG} 2>&1

# ts backup
BACKUPDIR=${TS%/*}
BUCKUPNAME=${TS##*/}
mv ${TS} ${BACKUPDIR}/backup/${BUCKUPNAME} >> ${LOG} 2>&1

echo "Finish: `date`" >> ${LOG}