encode_2.sh

#!/bin/sh
INPUT="$1"
JSON="$2"
CAT="etc"
FLG=0
TMP=`echo $INPUT | cut -f3 -d "/"`
LEN=`expr ${#TMP} - 5`
FILENAME=`echo $TMP | cut -c 1-$LEN`
TMPOUT="./video/tmp/$FILENAME.mp4"
OUTPUT="./video/encoded/$FILENAME.mp4"
DATE=`date "+%Y-%m-%d"`
ENCODE_LOG="encode_log"
JSON_LOG="json"
touch ./${ENCODE_LOG}/${DATE}.log
TARGET_HEIGHT="720"


if test "${JSON}" != "" ; then
  echo ${JSON} > ./${ENCODE_LOG}/${JSON_LOG}/${FILENAME}.json
  CAT=`echo "${JSON}" | jq -r '.category'`
  echo "Category is ${CAT}" >> ./${ENCODE_LOG}/${DATE}.log
  if test "${CAT}" = "anime" ; then
  #if test "${CAT}" = "variety" ; then
    FLG=1
    echo " FLG is ON deinterlace...  " >> ./${ENCODE_LOG}/${DATE}.log
  fi
fi

## mediainfo
echo "check media info..." >> ./${ENCODE_LOG}/${DATE}.log
MEDIA_INFO=`mediainfo --Inform='Video;%FrameRate%,%DisplayAspectRatio/String%,%BitRate%,%Width%,%Height%' "$1"`
FPS=`echo ${MEDIA_INFO} | awk -F',' '{print $1}'`
ASPECT_RATIO=`echo ${MEDIA_INFO} | awk -F',' '{print $2}'`
BIT_RATE=`echo ${MEDIA_INFO} | awk -F',' '{print $3}'`
SOURCE_WIDTH=`echo ${MEDIA_INFO} | awk -F',' '{print $4}'`
SOURCE_HEIGHT=`echo ${MEDIA_INFO} | awk -F',' '{print $5}'`

echo "source info       -----------------" >> ./${ENCODE_LOG}/${DATE}.log
echo "  fps         : ${FPS}fps" >> ./${ENCODE_LOG}/${DATE}.log
echo "  bit rate    : ${BIT_RATE}bps" >> ./${ENCODE_LOG}/${DATE}.log
echo "  aspect ratio: ${ASPECT_RATIO}" >> ./${ENCODE_LOG}/${DATE}.log
echo "  width       : ${SOURCE_WIDTH}px" >> ./${ENCODE_LOG}/${DATE}.log
echo "  height      : ${SOURCE_HEIGHT}px" >> ./${ENCODE_LOG}/${DATE}.log

## calc convert setting
TARGET_SCALE=`echo "scale=2; ${SOURCE_HEIGHT} / ${TARGET_HEIGHT}" | bc`
TARGET_WIDTH=`echo "scale=0; ${SOURCE_WIDTH} / ${TARGET_SCALE}" | bc`
TARGET_BIT_RATE=`echo "scale=0; ${BIT_RATE} / (${TARGET_SCALE} * 2)" | bc`
echo "convert settings  ------------------" >> ./${ENCODE_LOG}/${DATE}.log
echo "  scale       : ${TARGET_SCALE}" >> ./${ENCODE_LOG}/${DATE}.log
echo "  width       : ${TARGET_WIDTH}px" >> ./${ENCODE_LOG}/${DATE}.log
echo "  height      : ${TARGET_HEIGHT}px" >> ./${ENCODE_LOG}/${DATE}.log
echo "  bitrate     : ${TARGET_BIT_RATE}" >> ./${ENCODE_LOG}/${DATE}.log

## encode start
echo "encode start  ------------------" >> ./${ENCODE_LOG}/${DATE}.log

gst-launch-1.0 \
    filesrc location="${INPUT}" \
    ! progressreport \
    ! tsdemux name=demuxer demuxer. \
    ! queue \
    ! aacparse \
    ! avdec_aac \
    ! audioresample \
    ! audioconvert dithering=0 \
    ! voaacenc bitrate=192000 \
    ! mux. mp4mux  name=mux \
    ! filesink location="${TMPOUT}" demuxer. \
    ! queue \
    ! mpegvideoparse \
    ! omxmpeg2videodec \
    ! deinterlace mode=${FLG} \
    ! videoconvert \
    ! omxh264enc target-bitrate=${TARGET_BIT_RATE} control-rate=variable \
    ! video/x-h264,width=${TARGET_WIDTH},height=${TARGET_HEIGHT}, \
      stream-format=byte-stream,profile=high \
    ! h264parse \
    ! mux. >> ./${ENCODE_LOG}/${DATE}.log

status=$?
if test ${status} -nq 0 ; then
  echo "encode failed.." >> ./${ENCODE_LOG}/${DATE}.log
else
  echo "encode exit" >> ./${ENCODE_LOG}/${DATE}.log
  mv $TMPOUT $OUTPUT
fi

exit $status