[cli] video optimization

optimize.sh

#!/usr/bin/env bash

# Needs ffmpeg and handbrakeCLI
DOTFILES_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
IN_DIR=${1:-"$DOTFILES_DIR/in"}
OUT_DIR=${2:-"$DOTFILES_DIR/out"}
CUR_TIMESTAMP=`date +'%d/%m/%Y %H:%M:%S'`

echo "### INIT: $CUR_TIMESTAMP" >> log.txt
find "$IN_DIR" -type f \( -iname \*.mp4 -o -iname \*.mov -o -iname \*.avi \) -print0 | while IFS= read -r -d '' ORIGIN_PATH;

do
	FILENAME=`basename "$ORIGIN_PATH"`
	FILENAME=${FILENAME%.*}

	ORIGIN_RELATIVE_PATH="${ORIGIN_PATH#$IN_DIR}";
	ORIGIN_RELATIVE_DIR=`dirname "$ORIGIN_RELATIVE_PATH"`;
	ORIGIN_FILESIZE=`du -k "$ORIGIN_PATH" | cut -f 1`

	TARGET_PATH="$OUT_DIR/$ORIGIN_RELATIVE_DIR/$FILENAME.mp4";
	TARGET_DIR=`dirname "$TARGET_PATH"`;

	OPTIMIZED_NAME="$FILENAME.optimized.mp4"
	OPTIMIZED_PATH="$TARGET_DIR/$OPTIMIZED_NAME"

	NO_ROTATION_DATA_NAME="$FILENAME.norotation.mp4"
	NO_ROTATION_DATA_PATH="$TARGET_DIR/$NO_ROTATION_DATA_NAME"

	mkdir -p "$TARGET_DIR";
	echo '--- Removing rotation metadata';
	yes | ffmpeg -i "$ORIGIN_PATH" -metadata:s:v:0 rotate=0 "$NO_ROTATION_DATA_PATH"
	echo '--- Optimizing';
	ROTATION=$(exiftool -Rotation "$NO_ROTATION_DATA_PATH" | cut -d ":" -f2 | sed 's/^[ ]*//')
	yes | HandBrakeCLI -i "$NO_ROTATION_DATA_PATH" -o "$OPTIMIZED_PATH" --loose-anamorphic --quality 20 --rotate="angle=$ROTATION" --no-loose-crop --modulus 2 -f mp4 -e x264 -X 1920 -Y 1080 -2 -T -O;
	rm -rf "$NO_ROTATION_DATA_PATH";
	echo '--- Copying original metadata';
	yes | ffmpeg -i "$ORIGIN_PATH" -i "$OPTIMIZED_PATH" -map 1 -map_metadata 0 -c copy "$TARGET_PATH";
	rm -rf "$OPTIMIZED_PATH";
	echo '--- Copying original timestamps';
	touch -r "$ORIGIN_PATH" "$TARGET_PATH"

	TARGET_FILESIZE=`du -k "$TARGET_PATH" | cut -f 1`
	echo "$ORIGIN_PATH > $TARGET_PATH|deg:$ROTATION|$ORIGIN_FILESIZE > $TARGET_FILESIZE" >> log.txt
done
echo "### END: $CUR_TIMESTAMP" >> log.txt

rotate.sh

#!/usr/bin/env bash

for i in *.mp4
do
  r=$(exiftool -Rotation $i | cut -d ":" -f2 | sed 's/^[ ]*//')
  HandBrakeCLI -i $i -o ./out/$i --rotate=angle=$r -e x264 -q 21 -X 1000
done