Add video instruction.

libguac/include/protocol.h

@@ -290,6 +290,23 @@ int guac_protocol_send_sync(guac_socket* socket, guac_timestamp timestamp);
 int guac_protocol_send_audio(guac_socket* socket, int channel,
         const char* mimetype, int duration, void* data, int size);
 
+/**
+ * Sends an video instruction over the given guac_socket connection.
+ *
+ * If an error occurs sending the instruction, a non-zero value is
+ * returned, and guac_error is set appropriately.
+ *
+ * @param socket The guac_socket connection to use.
+ * @param layer The destination layer.
+ * @param mimetype The mimetype of the data being sent.
+ * @param duration The duration of the video being sent, in milliseconds.
+ * @param data The video data to be sent.
+ * @param size The number of bytes of video data to send.
+ * @return Zero on success, non-zero on error.
+ */
+int guac_protocol_send_video(guac_socket* socket, const guac_layer* layer,
+        const char* mimetype, int duration, void* data, int size);
+
 /* DRAWING INSTRUCTIONS */
 
 /**

libguac/src/protocol.c

@@ -944,4 +944,23 @@ int guac_protocol_send_transform(guac_socket* socket, const guac_layer* layer,
 
 }
 
+int guac_protocol_send_video(guac_socket* socket, const guac_layer* layer,
+        const char* mimetype, int duration, void* data, int size) {
 
+    int base64_length = (size + 2) / 3 * 4;
+
+    return
+           guac_socket_write_string(socket, "5.video,")
+        || __guac_socket_write_length_int(socket, layer->index)
+        || guac_socket_write_string(socket, ",")
+        || __guac_socket_write_length_string(socket, mimetype)
+        || guac_socket_write_string(socket, ",")
+        || __guac_socket_write_length_int(socket, duration)
+        || guac_socket_write_string(socket, ",")
+        || guac_socket_write_int(socket, base64_length)
+        || guac_socket_write_string(socket, ".")
+        || guac_socket_write_base64(socket, data, size)
+        || guac_socket_flush_base64(socket)
+        || guac_socket_write_string(socket, ";");
+
+}