diff --git a/src/guacenc/instruction-blob.c b/src/guacenc/instruction-blob.c
index 67b4fbb2..9e8ad3f6 100644
--- a/src/guacenc/instruction-blob.c
+++ b/src/guacenc/instruction-blob.c
@@ -40,12 +40,16 @@ int guacenc_handle_blob(guacenc_display* display, int argc, char** argv) {
     /* Parse arguments */
     int index = atoi(argv[0]);
     char* data = argv[1];
-    int data_length = guac_protocol_decode_base64(data);
+    int length = guac_protocol_decode_base64(data);
 
-    /* STUB */
-    guacenc_log(GUAC_LOG_DEBUG, "blob: stream=%i data=[%i bytes]",
-            index, data_length);
-    return 0;
+    /* Retrieve image stream */
+    guacenc_image_stream* stream =
+        guacenc_display_get_image_stream(display, index);
+    if (stream == NULL)
+        return 1;
+
+    /* Send data to decoder within associated stream */
+    return guacenc_image_stream_receive(stream, (unsigned char*) data, length);
 
 }
 
diff --git a/src/guacenc/instruction-end.c b/src/guacenc/instruction-end.c
index fbc9e284..749ead2a 100644
--- a/src/guacenc/instruction-end.c
+++ b/src/guacenc/instruction-end.c
@@ -22,6 +22,7 @@
 
 #include "config.h"
 #include "display.h"
+#include "image-stream.h"
 #include "log.h"
 
 #include <guacamole/client.h>
@@ -39,9 +40,20 @@ int guacenc_handle_end(guacenc_display* display, int argc, char** argv) {
     /* Parse arguments */
     int index = atoi(argv[0]);
 
-    /* STUB */
-    guacenc_log(GUAC_LOG_DEBUG, "end: stream=%i", index);
-    return 0;
+    /* Retrieve image stream */
+    guacenc_image_stream* stream =
+        guacenc_display_get_image_stream(display, index);
+    if (stream == NULL)
+        return 1;
+
+    /* Retrieve destination buffer */
+    guacenc_buffer* buffer =
+        guacenc_display_get_related_buffer(display, stream->index);
+    if (buffer == NULL)
+        return 1;
+
+    /* End image stream, drawing final image to the buffer */
+    return guacenc_image_stream_end(stream, buffer);
 
 }
 
diff --git a/src/guacenc/instruction-img.c b/src/guacenc/instruction-img.c
index bbd0c33f..e7c07188 100644
--- a/src/guacenc/instruction-img.c
+++ b/src/guacenc/instruction-img.c
@@ -44,12 +44,9 @@ int guacenc_handle_img(guacenc_display* display, int argc, char** argv) {
     int x = atoi(argv[4]);
     int y = atoi(argv[5]);
 
-    /* STUB */
-    guacenc_log(GUAC_LOG_DEBUG, "img: stream=%i mask=0x%X layer=%i "
-            "mimetype=%s (%i, %i)", stream_index, mask, layer_index,
-            mimetype, x, y);
-
-    return 0;
+    /* Create requested stream */
+    return guacenc_display_create_image_stream(display, stream_index,
+            mask, layer_index, mimetype, x, y);
 
 }