Ffmpeg

Copying Files

cp -av /camera /local # Keep the file modify times

function rename {
    ORIG_FILE=$1
    PREFIX="SANYO_"
    TOUCH_ARG=`stat -f "%Sm" -t "%Y%m%d%H%M.%S" $ORIG_FILE`
    NAME_TIMESTAMP=`stat -f "%Sm" -t "%Y%m%d_%H%M%S" $ORIG_FILE`
    NEW_NAME="${PREFIX}${NAME_TIMESTAMP}.mp4"
    #echo "Moving $ORIG_FILE to $NEW_NAME"
    mv -v $ORIG_FILE $NEW_NAME
    touch -t $TOUCH_ARG $NEW_NAME
}

H.264 encoding

• Also set resolution and bitrate all at the same time:

ffmpeg -i VID_20160918_113318088.mp4 -vprofile high -codec:v libx264 -preset slow -b:v 2500k -maxrate 2500k -bufsize 5000k -vf scale=-2:720 -threads 0 -codec:a aac -b:a 128k ../HD_size/VID_20160918_113318088_720.mp4