vcard: improve picture quality

Change-Id: I5168237dd0b6b464a7f4897b3b92d1f4c6b3b102
diff --git a/ring-android/app/src/main/java/cx/ring/services/VCardServiceImpl.java b/ring-android/app/src/main/java/cx/ring/services/VCardServiceImpl.java
index c374624..12d2b9d 100644
--- a/ring-android/app/src/main/java/cx/ring/services/VCardServiceImpl.java
+++ b/ring-android/app/src/main/java/cx/ring/services/VCardServiceImpl.java
@@ -70,9 +70,9 @@
                 .filter( vcard -> !VCardUtils.isEmpty(vcard)).toSingle()
                 .map(vcard -> {
                     if (!vcard.getPhotos().isEmpty()) {
-                        // Reduce photo size to fit in one DHT packet
-                        Bitmap photo = BitmapUtils.bytesToBitmap(vcard.getPhotos().get(0).getData(), maxSize);
-                        //photo = BitmapUtils.reduceBitmap(photo, maxSize);
+                        // Reduce photo to fit in maxSize, assuming JPEG compress with ratio of at least 8
+                        byte[] data = vcard.getPhotos().get(0).getData();
+                        Bitmap photo = BitmapUtils.bytesToBitmap(data, maxSize * 8);
                         ByteArrayOutputStream stream = new ByteArrayOutputStream();
                         photo.compress(Bitmap.CompressFormat.JPEG, 88, stream);
                         vcard.removeProperties(Photo.class);
diff --git a/ring-android/app/src/main/java/cx/ring/utils/BitmapUtils.java b/ring-android/app/src/main/java/cx/ring/utils/BitmapUtils.java
index b452c44..11b5eb6 100644
--- a/ring-android/app/src/main/java/cx/ring/utils/BitmapUtils.java
+++ b/ring-android/app/src/main/java/cx/ring/utils/BitmapUtils.java
@@ -38,7 +38,7 @@
  */
 public final class BitmapUtils
 {
-    private static final String TAG = BitmapUtils.class.getName();
+    private static final String TAG = BitmapUtils.class.getSimpleName();
     private BitmapUtils() {}
 
     public static Photo bitmapToPhoto(@NonNull Bitmap image) {
diff --git a/ring-android/libringclient/src/main/java/cx/ring/services/VCardService.java b/ring-android/libringclient/src/main/java/cx/ring/services/VCardService.java
index f4ed7eb..b103f0c 100644
--- a/ring-android/libringclient/src/main/java/cx/ring/services/VCardService.java
+++ b/ring-android/libringclient/src/main/java/cx/ring/services/VCardService.java
@@ -30,7 +30,7 @@
 public abstract class VCardService {
 
     public static final int MAX_SIZE_SIP = 256 * 1024;
-    public static final int MAX_SIZE_REQUEST = 64 * 1024;
+    public static final int MAX_SIZE_REQUEST = 16 * 1024;
 
     public abstract Single<VCard> loadSmallVCard(String accountId, int maxSize);
     public abstract Single<VCard> saveVCardProfile(String accountId, String uri, String displayName, String picture);