mp4 encode utils

bda2mp4

#!/bin/bash

ATAG="fdkaac-he96ab"

# BDAV MPEG-2 TS something audio -> HE-AAC v1 audio in MPEG-4
avconv -y -i $1 \
       -c:a libfdk_aac -profile:a aac_he -b:a 96k -afterburner 1 \
       -f mp4 $1.$ATAG.mp4

bdav2mp4

#!/bin/bash

EXT="mp4"
STAG="BD"
PTAG="1080p-x264-q18"
ATAG="fdkaac-he96ab"
VTAG="r15"

# BDAV MPEG-2 TS audio track -> mp4 audio
avconv -y -i $1 -vn -map 0:a:0 \
       -c:a libfdk_aac -profile:a aac_he -b:a 96k -afterburner 1 \
       -f mp4 $1.tmp.a.mp4 

# BDAV MPEG-2 TS H.264 video track -> mp4 H.264 video
avconv -threads 6 -y -i $1 -c:v libx264 \
       -ssim 1 -tune ssim -crf 18 -bluray-compat 1 \
       -x264-params b-adapt=2:me=umh:merange=48:subme=10:trellis=2:ref=12:bframes=5:analyse=all:b-pyramid=strict \
       -f mp4 $1.tmp.v.mp4 2>&1 | tee $1.tmp.log

SSIM=`cat "$1.tmp.log" | grep SSIM | sed -e "s/^.*Mean Y:\([0-9.]*\).*$/\1/"`

# mux
MP4Box -add "$1.tmp.v.mp4"#video -add "$1.tmp.a.mp4"#audio -new "$1_${STAG}_${PTAG}-SSIM=${SSIM}_${ATAG}_${VTAG}.$EXT"

# clean up
rm -fv $1.tmp.v.mp4 $1.tmp.a.mp4 $1.tmp.log

bdv2mp4

#!/bin/bash

STAG="BD"
PTAG="1080p-x264-q18"
VTAG="r15"

# BDAV MPEG-2 TS H.264 video track -> mp4 H.264 video
avconv -threads 6 -y -i $1 -c:v libx264 \
       -ssim 1 -tune ssim -crf 18 -bluray-compat 1 \
       -x264-params b-adapt=2:me=umh:merange=48:subme=10:trellis=2:ref=12:bframes=5:analyse=all:b-pyramid=strict \
       -f mp4 $1.mp4 2>&1 | tee $1.tmp.log

SSIM=`cat "$1.tmp.log" | grep SSIM | sed -e "s/^.*Mean Y:\([0-9.]*\).*$/\1/"`

mv -v $1.mp4 $1_${STAG}_${PTAG}-SSIM=${SSIM}_${VTAG}.mp4

# clean up
rm -fv $1.tmp.log

dtvts_to_mp4

#!/bin/bash

# Japanese ISDB-T/ISDB-S MPEG-2 TS -> mp4 H.264 video+audio
# コメンタリートラックがあればあとでmuxすべし

# 音ズレ対策が面倒なので自分の環境用にビルドしたHandBrakeを使う
ENCODER="HandBrakeCLI"

EXT="mp4"
PTAG="r12f18"
ONAME="$1_$PTAG.$EXT"

OPTS='-t 1 -c 1 -f mp4 -4 -O --denoise="2:1.5:3:2.25" \
-w 1280 -l 720 --crop 0:8:0:0 --modulus 2 -e x264 -q 18 \
-a 1 -E faac -6 stereo -R Auto -Q 128 -D 0 \
-x b-adapt=2:me=umh:merange=64:subq=10:trellis=2:ref=12:bframes=6:analyse=all:b-pyramid=strict:deblock=2,2 --x264-tune ssim --verbose=1'

$ENCODER $OPTS -i "$1" -o "$ONAME"

dtvts_to_mp4_cron

#!/bin/bash

# cron 用スクリプト (+SSIM記録)

dir="/path/to/encode/pool/"
fproc="dtvts_to_mp4"
fext="ts"
lext="bak"
eext="mp4"
vtag="r12f18"

# check process
proc=`ps cax | grep -c ${fproc}`
if [ ${proc} -gt 2 ]; then
		exit 0;
fi

# cd
cd ${dir}

# find
fns=`ls *.${fext} 2> /dev/null | grep ${fext}`
if [ "${fns}" = "" ]; then
		exit 0;
fi

# lock-on
for fn in ${fns}; do
		mv "${fn}" "${fn}.${lext}"
		~/dtvts_to_mp4 "${fn}.${lext}" > "${fn}.log" 2>&1

		# get SSIM
		SSIM=`cat "${fn}.log" | grep SSIM | sed -e "s/^.*Mean Y:\([0-9.]*\).*$/\1/"`
		rename "s/.${eext}/_SSIM\=${SSIM}.${eext}/" "${fn}.${lext}_${vtag}.${eext}"
		# rename "s/.m2ts.ts//" "${fn}.${lext}_${vtag}_SSIM\=${SSIM}.${eext}"

		break
done

mp4mux

#!/bin/bash

# mux
MP4Box -add "$1" -add "$2" -new "$1.tmp.mp4"

mv -v "$1" "$1.bak.mp4"
mv -v "$1.tmp.mp4" "$1"