Buffer characters that seem to be part of a multibyte UTF-8 sequence when copying output from HandBrakeCLI to the console or .log file to avoid a crash on Windows.

Author: joshstaiger

bin/transcode-video

@@ -1391,10 +1391,27 @@ HERE
             Process.kill 'INT', io.pid
           end
 
+          buf = ""
           io.each_char do |char|
-            print char
+            # Printing a single UTF-8 continuation byte to the Console
+            # on Windows causes a crash, therefore we buffer characters
+            # as long as they seem to be part of a multi-byte UTF-8 sequence
+
+            if (char.bytes[0] & 0x80) != 0
+              buf << char
+            else
+              if not buf.empty?
+                print buf
+                buf = ""
+              end
+              print char
+            end
             log_file.print char unless log_file.nil?
           end
+
+          if not buf.empty?
+            print buf
+          end
         end
       rescue SystemCallError => e
         raise "transcoding failed: #{e}"