/// <summary>
/// Checks whether an {@link InputStream} is in the Horrible
/// Property Set Format.
/// </summary>
/// <param name="stream">The {@link InputStream} To check. In order To
/// perform the check, the method Reads the first bytes from the
/// stream. After Reading, the stream is Reset To the position it
/// had before Reading. The {@link InputStream} must support the
/// {@link InputStream#mark} method.</param>
/// <returns>
/// <c>true</c> if the stream is a property Set
/// stream; otherwise, <c>false</c>.
/// </returns>
public static bool IsPropertySetStream(Stream stream)
{
ByteArrayInputStream dis = stream as ByteArrayInputStream;
/*
* Read at most this many bytes.
*/
int BUFFER_SIZE = 50;
/*
* Mark the current position in the stream so that we can
* Reset To this position if the stream does not contain a
* property Set.
*/
if (dis == null || !dis.MarkSupported())
{
throw new MarkUnsupportedException(stream.GetType().Name);
}
dis.Mark(BUFFER_SIZE);
/*
* Read a couple of bytes from the stream.
*/
byte[] buffer = new byte[BUFFER_SIZE];
int bytes =
stream.Read(buffer, 0,
(int)Math.Min(buffer.Length, dis.Available()));
bool isPropertySetStream =
IsPropertySetStream(buffer, 0, bytes);
stream.Seek(0, SeekOrigin.Begin);
dis.Reset();
return(isPropertySetStream);
}
public void Available_InitializedStream_ReturnsNumberOfAvailableBytes()
{
byte[] data = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
ByteArrayInputStream stream = ByteArrayInputStream.Create(data);
Assert.AreEqual(11, stream.Available());
}
private async void ExecuteDetection(int mIndex)
{
Face[] faces = null;
bool mSucceed = true;
mProgressDialog.Show();
AddLog("Request: Detecting in image " + mIndex);
try
{
var faceClient = new FaceClient();
using (MemoryStream pre_output = new MemoryStream())
{
if (mIndex == 0)
{
mBitmap0.Compress(Bitmap.CompressFormat.Jpeg, 100, pre_output);
}
else
{
mBitmap1.Compress(Bitmap.CompressFormat.Jpeg, 100, pre_output);
}
using (ByteArrayInputStream inputStream = new ByteArrayInputStream(pre_output.ToArray()))
{
byte[] arr = new byte[inputStream.Available()];
inputStream.Read(arr);
var output = new MemoryStream(arr);
mProgressDialog.SetMessage("Detecting...");
SetInfo("Detecting...");
faces = await faceClient.Detect(output, true, true, new[] {
FaceServiceClientFaceAttributeType.Age,
FaceServiceClientFaceAttributeType.Gender,
FaceServiceClientFaceAttributeType.Smile,
FaceServiceClientFaceAttributeType.Glasses,
FaceServiceClientFaceAttributeType.FacialHair,
FaceServiceClientFaceAttributeType.Emotion,
FaceServiceClientFaceAttributeType.HeadPose
});
}
}
}
catch (Java.Lang.Exception e)
{
mSucceed = false;
AddLog(e.Message);
}
RunOnUiThread(() =>
{
SetUiAfterDetection(faces, mIndex, mSucceed);
});
}
private async void ExecuteDetection()
{
Face[] faces = null;
bool mSucceed = true;
mProgressDialog.Show();
AddLog("Request: Detecting in image " + mImageUri);
try
{
var faceClient = new FaceClient();
using (MemoryStream pre_output = new MemoryStream())
{
mBitmap.Compress(Bitmap.CompressFormat.Jpeg, 100, pre_output);
using (ByteArrayInputStream inputStream = new ByteArrayInputStream(pre_output.ToArray()))
{
byte[] arr = new byte[inputStream.Available()];
inputStream.Read(arr);
var output = new MemoryStream(arr);
mProgressDialog.SetMessage("Detecting...");
SetInfo("Detecting...");
faces = await faceClient.Detect(output, true, true, new[] {
FaceServiceClientFaceAttributeType.Age,
FaceServiceClientFaceAttributeType.Gender,
FaceServiceClientFaceAttributeType.Smile,
FaceServiceClientFaceAttributeType.Glasses,
FaceServiceClientFaceAttributeType.FacialHair,
FaceServiceClientFaceAttributeType.Emotion,
FaceServiceClientFaceAttributeType.HeadPose
});
}
}
}
catch (Java.Lang.Exception e)
{
mSucceed = false;
AddLog(e.Message);
}
RunOnUiThread(() =>
{
AddLog("Response: Success. Detected " + (faces == null ? 0 : faces.Length) + " face(s) in " + mImageUri);
// Show the result on screen when detection is done.
ListView list_detected_faces = FindViewById <ListView>(Resource.Id.list_detected_faces);
SetUiAfterDetection(faces, mSucceed, list_detected_faces);
});
}
private async void ExecuteDetection(int mRequestCode, string mImageUri, Bitmap mInternalBitmap)
{
Face[] faces = null;
bool mSucceed = true;
mProgressDialog.Show();
AddLog("Request: Detecting in image " + mImageUri);
try
{
var faceClient = new FaceClient();
using (MemoryStream pre_output = new MemoryStream())
{
mInternalBitmap.Compress(Bitmap.CompressFormat.Jpeg, 100, pre_output);
using (ByteArrayInputStream inputStream = new ByteArrayInputStream(pre_output.ToArray()))
{
byte[] arr = new byte[inputStream.Available()];
inputStream.Read(arr);
var output = new MemoryStream(arr);
mProgressDialog.SetMessage("Detecting...");
SetInfo("Detecting...");
faces = await faceClient.Detect(output, true, false, null);
}
}
}
catch (Java.Lang.Exception e)
{
mSucceed = false;
AddLog(e.Message);
}
RunOnUiThread(() =>
{
if (mSucceed)
{
AddLog("Response: Success. Detected " + faces.Count() + " Face(s) in image");
}
if (mRequestCode == REQUEST_ADD_FACE)
{
SetUiAfterDetectionForAddFace(faces);
}
else if (mRequestCode == REQUEST_SELECT_IMAGE)
{
SetUiAfterDetectionForSelectImage(faces);
}
});
}
private async void ExecuteDetection()
{
Face[] faces = null;
bool mSucceed = true;
mProgressDialog.Show();
AddLog("Request: Detecting " + mImageUriStr);
try
{
var faceClient = new FaceClient();
using (MemoryStream pre_output = new MemoryStream())
{
mBitmap.Compress(Bitmap.CompressFormat.Jpeg, 100, pre_output);
using (ByteArrayInputStream inputStream = new ByteArrayInputStream(pre_output.ToArray()))
{
byte[] arr = new byte[inputStream.Available()];
inputStream.Read(arr);
var output = new MemoryStream(arr);
mProgressDialog.SetMessage("Detecting...");
SetInfo("Detecting...");
faces = await faceClient.Detect(output, true, false, null);
}
}
}
catch (Java.Lang.Exception e)
{
mSucceed = false;
AddLog(e.Message);
}
RunOnUiThread(() =>
{
if (mSucceed)
{
int faces_count = (faces == null) ? 0 : faces.Count();
AddLog("Response: Success. Detected " + faces_count.ToString() + " Face(s)");
}
SetUiAfterDetection(faces, mSucceed);
});
}
private static SignedCertificateTimestamp[] parseSCTsFromCertExtension(byte[] extensionvalue)
{
System.Console.WriteLine("parseSCTsFromCertExtension:" + BitConverter.ToString(extensionvalue));
List <SignedCertificateTimestamp> sctList = new List <SignedCertificateTimestamp>();
ByteArrayInputStream bis = new ByteArrayInputStream(extensionvalue);
int i = ReadUint16(bis);
if (i == 1154)
{
SCTS_TYPE = 1;
i = ReadUint16(bis);
}
i = ReadUint16(bis);
i = ReadUint16(bis); // first one is the length of all SCTs concatenated, we don't actually need this
while (bis.Available() > 2)
{
byte[] sctBytes = ReadOpaque16(bis);
sctList.Add(ParseSCTFromBinary(new ByteArrayInputStream(sctBytes)));
}
return(sctList.ToArray());
}
private async void ExecuteFaceTask(List <int> mFaceIndices)
{
AddPersistedFaceResult result = null;
bool mSucceed = true;
mProgressDialog.Show();
try
{
var faceClient = new FaceClient();
UUID personId = UUID.FromString(mPersonId);
using (MemoryStream pre_output = new MemoryStream())
{
mBitmap.Compress(Bitmap.CompressFormat.Jpeg, 100, pre_output);
using (ByteArrayInputStream inputStream = new ByteArrayInputStream(pre_output.ToArray()))
{
byte[] arr = new byte[inputStream.Available()];
inputStream.Read(arr);
var output = new MemoryStream(arr);
mProgressDialog.SetMessage("Adding face...");
SetInfo("Adding face...");
foreach (int index in mFaceIndices)
{
FaceRectangle faceRect = mFaceGridViewAdapter.faceRectList[index];
AddLog("Request: Adding face to person " + mPersonId);
result = await faceClient.AddPersonFace(mPersonGroupId, personId, output, "User data", faceRect);
mFaceGridViewAdapter.faceIdList[index] = result.PersistedFaceId;
}
}
}
}
catch (Java.Lang.Exception e)
{
mSucceed = false;
AddLog(e.Message);
}
RunOnUiThread(() =>
{
mProgressDialog.Dismiss();
if (mSucceed)
{
String faceIds = "";
foreach (int index in mFaceIndices)
{
String faceId = mFaceGridViewAdapter.faceIdList[index].ToString();
faceIds += faceId + ", ";
try
{
var file = System.IO.Path.Combine(Application.Context.FilesDir.Path, faceId);
using (var fs = new FileStream(file, FileMode.OpenOrCreate))
{
mFaceGridViewAdapter.faceThumbnails[index].Compress(Bitmap.CompressFormat.Jpeg, 100, fs);
}
Android.Net.Uri uri = Android.Net.Uri.Parse(file);
StorageHelper.SetFaceUri(faceId, uri.ToString(), mPersonId, this);
}
catch (Java.IO.IOException e)
{
SetInfo(e.Message);
}
}
AddLog("Response: Success. Face(s) " + faceIds + "added to person " + mPersonId);
Finish();
}
});
}
private async void ExecuteDetection(string mImageUri)
{
Face[] faces = null;
bool mSucceed = true;
mProgressDialog.Show();
AddLog("Request: Detecting in image " + mImageUri);
try
{
var faceClient = new FaceClient();
using (MemoryStream pre_output = new MemoryStream())
{
mBitmap.Compress(Bitmap.CompressFormat.Jpeg, 100, pre_output);
using (ByteArrayInputStream inputStream = new ByteArrayInputStream(pre_output.ToArray()))
{
byte[] arr = new byte[inputStream.Available()];
inputStream.Read(arr);
var output = new MemoryStream(arr);
mProgressDialog.SetMessage("Detecting...");
SetInfo("Detecting...");
faces = await faceClient.Detect(output, true, false, null);
}
}
}
catch (Java.Lang.Exception e)
{
mSucceed = false;
AddLog(e.Message);
}
RunOnUiThread(() =>
{
if (mSucceed)
{
AddLog("Response: Success. Detected " + faces.Count() + " Face(s) in image");
}
mProgressDialog.Dismiss();
SetAllButtonsEnabledStatus(true);
if (faces != null)
{
SetInfo("Detection is done");
// Show the detailed list of original faces.
mFaceListAdapter.AddFaces(faces);
GridView listView = (GridView)FindViewById(Resource.Id.all_faces);
listView.Adapter = mFaceListAdapter;
TextView textView = (TextView)FindViewById(Resource.Id.text_all_faces);
textView.Text = String.Format(
"{0} face{1} in total",
mFaceListAdapter.faces.Count,
mFaceListAdapter.faces.Count != 1 ? "s" : "");
}
if (mFaceListAdapter.faces.Count >= 2 && mFaceListAdapter.faces.Count <= 100)
{
SetGroupButtonEnabledStatus(true);
}
else
{
SetGroupButtonEnabledStatus(false);
}
});
}
private async void ExecuteDetection()
{
Face[] faces = null;
mProgressDialog.Show();
//AddLog("Request: Detecting in image " + mImageUri);
try
{
var faceClient = new FaceClient();
using (MemoryStream pre_output = new MemoryStream())
{
mBitmap.Compress(Bitmap.CompressFormat.Jpeg, 100, pre_output);
using (ByteArrayInputStream inputStream = new ByteArrayInputStream(pre_output.ToArray()))
{
byte[] arr = new byte[inputStream.Available()];
inputStream.Read(arr);
var output = new MemoryStream(arr);
mProgressDialog.SetMessage("Detecting...");
SetInfo("Detecting...");
faces = await faceClient.Detect(output, true, false, null);
}
}
}
catch (Java.Lang.Exception e)
{
AddLog(e.Message);
}
RunOnUiThread(() =>
{
mProgressDialog.Dismiss();
SetAllButtonsEnabledStatus(true);
if (faces != null)
{
// Set the adapter of the ListView which contains the details of detected faces.
mFaceListAdapter = new FaceListAdapter(faces, this);
ListView listView = (ListView)FindViewById(Resource.Id.list_identified_faces);
listView.Adapter = mFaceListAdapter;
if (faces.Count() == 0)
{
detected = false;
SetInfo("No faces detected!");
}
else
{
detected = true;
SetInfo("Click on the \"Identify\" button to identify the faces in image.");
}
}
else
{
detected = false;
}
RefreshIdentifyButtonEnabledStatus();
});
}
