Skip to content

Commit

Permalink
adds deticated MRNG columns to internal database,
Browse files Browse the repository at this point in the history 
exports database on every Hit
Adds columns for raw and processed MRNG values,
changes gathering of timestamp from 4 to 5
  • Loading branch information
@StefanKutschera
StefanKutschera committed Mar 16, 2022
1 parent 39cc511 commit 753bc46
Show file tree
Hide file tree
Showing 2 changed files with 163 additions and 69 deletions.
196 changes: 129 additions & 67 deletions app/src/main/java/science/credo/mobiledetector/detection/CameraPreviewCallbackNative.kt
View file
Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@ import science.credo.mobiledetector.info.ConfigurationInfo
import science.credo.mobiledetector.info.LocationInfo
import science.credo.mobiledetector.network.ServerInterface
import java.io.*
import java.nio.channels.FileChannel
import java.util.*
import java.util.concurrent.atomic.AtomicInteger
import kotlin.math.max
Expand Down Expand Up @@ -162,35 +163,11 @@ class CameraPreviewCallbackNative(private val mContext: Context) : Camera.Previe
val dataString = Base64.encodeToString(cropDataPNG, Base64.DEFAULT)
val location = mLocationInfo.getLocationData()

val hit = Hit(
dataString,
timestamp,
location.latitude,
location.longitude,
location.altitude,
location.accuracy,
location.provider,
width,
height,
centerX,
centerY,
max,
average,
blacks,
config.blackFactor,
sensorsState.accX,
sensorsState.accY,
sensorsState.accZ,
sensorsState.orientation,
sensorsState.temperature,
trueTime
)
hits.add(hit)


fillHited(data, width, offsetX, offsetY, endX, endY)
val timeStampString = timestamp.toString()
Log.i("Hit-Detected", timeStampString)

try {
//Copy to CamerPreviewCallbackNative
//Information to store in the folder <timeStampString> on the moment of detection
Expand Down Expand Up @@ -233,60 +210,105 @@ class CameraPreviewCallbackNative(private val mContext: Context) : Camera.Previe
e.printStackTrace()
}

try {
val epsilon = 21;
var pxTxt = ""
var mrngpx = ""
var mrngcl = ""
var rgbPx = ""
var mrng3 = ""
for (x in 0 until cropBitmap.getWidth()) {
for (y in 0 until cropBitmap.getHeight()) {
var px = cropBitmap.getPixel(x, y)
pxTxt = pxTxt + px
mrngpx = mrngpx + (px%2)
var red = Color.red(px)
var green = Color.green(px)
var blue = Color.blue(px)
var alpha = Color.alpha(px)
if (red > epsilon || green > epsilon || blue > epsilon) {
rgbPx = rgbPx + red + ";" + green + ";" + blue + ";" + alpha + ";" + x +";" + y + "\n"
mrng3 = mrng3 + ((red%2) + (green%2) + (blue%2))%2
}


val epsilon = 21;
var pxTxt = ""
var mrngpx = ""
var rgbPx = ""
var potPixelError = false

val mrngRawP1Time = timeStampString.subSequence(timeStampString.length-5,timeStampString.length).toString().toInt()
val mrngP1Time = Integer.toBinaryString(mrngRawP1Time).toString()

val mrngRawP2Position = centerX.toString() + "," + centerY.toString()
val mrngP2Position = (centerX%2).toString() + (centerY%2).toString()

var mrngP3Color = ""
var mrngRawP3Color = ""

// Extract Randomness out of bit flipped pixels
for (x in 0 until cropBitmap.getWidth()) {
for (y in 0 until cropBitmap.getHeight()) {
var px = cropBitmap.getPixel(x, y)
pxTxt = pxTxt + px
mrngpx = mrngpx + (px%2)
var red = Color.red(px)
var green = Color.green(px)
var blue = Color.blue(px)
var alpha = Color.alpha(px)
if (red > epsilon || green > epsilon || blue > epsilon) {
rgbPx = rgbPx + red + ";" + green + ";" + blue + ";" + alpha + ";" + x +";" + y + "\n"
mrngRawP3Color = mrngRawP3Color + red + ";" + green + ";" + blue + ";" + alpha + ";" + x +";" + y +";\n"
mrngP3Color = mrngP3Color + ((red%2) + (green%2) + (blue%2))%2
}

}
}
val mrngBitString = mrngP1Time + mrngP2Position + mrngP3Color
if (mrngP3Color.length<=2)
potPixelError = true

// Write MRNG data to file
try {
val directory = File(
Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_DOWNLOADS
), timeStampString
)
if (!directory.exists()) {
directory.mkdirs()
}
val mrngFile = "/" + timeStampString + "_mrng.txt"
val myfile = File(directory,mrngFile)
val hit = Hit(
dataString,
timestamp,
location.latitude,
location.longitude,
location.altitude,
location.accuracy,
location.provider,
width,
height,
centerX,
centerY,
max,
average,
blacks,
config.blackFactor,
sensorsState.accX,
sensorsState.accY,
sensorsState.accZ,
sensorsState.orientation,
sensorsState.temperature,
trueTime,
mrngRawP1Time,
mrngRawP2Position,
mrngRawP3Color,
mrngP1Time,
mrngP2Position,
mrngP3Color,
mrngBitString,
potPixelError
)
hits.add(hit)

val mrng1 = timeStampString.subSequence(timeStampString.length-4,timeStampString.length).toString().toInt()
val mrng2 = (centerX%2).toString() + (centerY%2).toString()

myfile.printWriter().use { out ->
out.println(Integer.toBinaryString(mrng1).toString() + mrng2 + mrng3)
out.println(timeStampString)
out.println("" + centerX + ";" + centerY)
out.println(rgbPx)
}
} catch (e: Exception) {
e.printStackTrace()
// Write MRNG data to file
try {
val directory = File(
Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_DOWNLOADS
), timeStampString
)
if (!directory.exists()) {
directory.mkdirs()
}
val mrngFile = "/" + timeStampString + "_mrng.txt"
val myfile = File(directory,mrngFile)

myfile.printWriter().use { out ->
out.println(mrngBitString)
out.println(timeStampString)
out.println("" + centerX + ";" + centerY)
out.println(rgbPx)
}
} catch (e: Exception) {
e.printStackTrace()
}




} else {
break
}
Expand Down Expand Up @@ -315,8 +337,10 @@ class CameraPreviewCallbackNative(private val mContext: Context) : Camera.Previe
}
}
mDataManager.closeDb()
backupDb()
}


var bc = benchmarkCount.addAndGet(1)
var bs = benchmarkSumMs.addAndGet((System.currentTimeMillis() - benchmarkStart).toInt())

Expand Down Expand Up @@ -468,4 +492,42 @@ class CameraPreviewCallbackNative(private val mContext: Context) : Camera.Previe
}
}
}

fun backupDb() {
val db = DataManager.getDefault(mContext)
try {
val sd = File(
Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_DOWNLOADS
), "backup_db"
)
val data = db.mAppPath
var bool = false
if(!sd.exists()) {
sd.mkdir()
}
if (sd.canWrite()) {
val currentDBPath = "cache.db"
val backupDBPath = "backup_db.txt"
val currentDB = File(data, currentDBPath)
val backupDB = File(sd, backupDBPath)
if (currentDB.exists()) {
val src: FileChannel = FileInputStream(currentDB).getChannel()
val dst: FileChannel = FileOutputStream(backupDB).channel
dst.transferFrom(src, 0, src.size())
src.close()
dst.close()
bool = true
}
if (bool === true) {
mContext.runOnUiThread {
Toast.makeText(this, "Backup Complete", Toast.LENGTH_SHORT).show()
}
bool = false
}
}
} catch (e: java.lang.Exception) {
Log.w("Automated Backup", e)
}
}
}
36 changes: 34 additions & 2 deletions app/src/main/java/science/credo/mobiledetector/detection/Hit.kt
View file
Original file line number Diff line number Diff line change
Expand Up @@ -33,7 +33,15 @@ class Hit (frameContent: String,
az: Float,
orientation: Float,
temperature: Int,
trueTime: Long
trueTime: Long,
mrngRawP1Time: Int,
mrngRawP2Position: String,
mrngRawP3Color: String,
mrngP1Time: String,
mrngP2Position: String,
mrngP3Color: String,
mrngBitString: String,
potPixelError: Boolean?
){
@PrimaryKey
@AutoIncrement
Expand Down Expand Up @@ -107,5 +115,29 @@ class Hit (frameContent: String,
@JsonIgnore
val detectionTimestamp = (System.currentTimeMillis() / 10000L).toInt() // PultusORM less condition walkaround

constructor() : this("", 0, 0.0, 0.0, 0.0, 0.0f, "", 0, 0, 0, 0, 0, 0.0, 0.0, 0, 0f, 0f, 0f, 0f, 0, 0) {}
@JsonIgnore
val mMrngRawP1Time: Int = mrngRawP1Time

@JsonIgnore
val mMrngRawP2Position: String = mrngRawP2Position

@JsonIgnore
val mMrngRawP3Color: String = mrngRawP3Color

@JsonIgnore
val mMrngP1Time: String = mrngP1Time

@JsonIgnore
val mMrngP2Position: String = mrngP2Position

@JsonIgnore
val mMrngP3Color: String = mrngP3Color

@JsonIgnore
val mMrngBitString: String = mrngBitString

@JsonIgnore
val mPotPixelError: Boolean? = potPixelError

constructor() : this("", 0, 0.0, 0.0, 0.0, 0.0f, "", 0, 0, 0, 0, 0, 0.0, 0.0, 0, 0f, 0f, 0f, 0f, 0, 0,0 ,"" ,"" , "", "", "", "", null) {}
}

0 comments on commit 753bc46

Please sign in to comment.