FFmpeg : 動画からアスキートを生成

gistfile1.sh

TEMP_FILE='.FILE_LIST.tmp'

make_temp_file() {
  cd ${NAME}
  ls -F | grep -v ./ > ${TEMP_FILE}
  cd ../.
}

convert_png() {
  BUFIFS=${IFS}
  IFS=
  exec 3< ${NAME}/${TEMP_FILE}
  while read FL 0<&3
  do
    T_NAME=${FL##*/}
    T_FILE_NAME=${T_NAME%.*}
    pngtopnm ${NAME}/${FL} | ppmtopgm | pgmtopbm -dither8 | pbmtoascii > ${NAME}/${T_FILE_NAME}.txt
    rm ${NAME}/${FL}
  done
  exec 3<&-
  IFS=${BUFIFS}
}

convert_jpg() {
  echo ${TEMP_FILE}
  BUFIFS=${IFS}
  IFS=
  exec 3< ${NAME}/${TEMP_FILE}
  while read FL 0<&3
  do
    T_NAME=${FL##*/}
    T_FILE_NAME=${T_NAME%.*}
    #jpegtopnm ${NAME}/${FL} | ppmtopgm | pnmscale -width 158 | pgmnorm | pgmtopbm | pbmtoascii -2x4 > ${NAME}/${T_FILE_NAME}.txt
    jpegtopnm ${NAME}/${FL} | ppmtopgm | pnmscale -height 150 | pgmnorm | pgmtopbm | pbmtoascii > ${NAME}/${T_FILE_NAME}.txt
    rm ${NAME}/${FL}
  done
  exec 3<&-
  IFS=${BUFIFS}
}

if [ ! $# -eq 2 ] ; then
  echo 'No Argument !'
  exit
fi

if [ -f $2 ] ; then
    FILE_NAME=${2##*/}
    NAME=${FILE_NAME%.*}
    rm -fr ${NAME}
    mkdir ${NAME}
else
  echo 'No File !';
  exit
fi

case $1 in
  '-j' )
    ffmpeg -i $2 -f image2 ${NAME}/%d.jpg
    make_temp_file
    convert_jpg
  ;;
  '-j2' )
    ffmpeg -i $2 -f image2 -vcodec mjpeg -qscale 1 -qmin 1 -qmax 1 ${NAME}/%d.jpg
    make_temp_file
    convert_jpg
  ;;
  '-p' )
    #ffmpeg -i $2 -f image2 -vcodec png ${NAME}/%d.png
    ffmpeg -i $2 -s qcif -f image2 ${NAME}/%d.jpg
    make_temp_file
    convert_png
  ;;
  * )
    echo 'No Convert Type !'
    exit
  ;;
esac

# Delete Temp File
rm -fr ${NAME}/${TEMP_FILE}

# Compression
rm -fr ${NAME}.zip
cd ${NAME}
zip ../${NAME}.zip ./*
cd ../.

# Delte Temp File
rm -fr ${NAME}