Nice! Some feedback.

[hn-88]

Nice gui. Tested on my machine which has xterm & gnome-terminal installed,

1. worked well if I chose xterm as the terminal - on hitting RUN, xterm opened up and ffmpeg started showing encoding status.

2. when I chose gnome-terminal (which is also installed on my system), no terminal window opened up, though the GUI window became dimmed. No encoding happened either.

[chunjoonsung]

Profiles of x265_profiles is added to the x264_lossless combobox, is it right ?

def on_codec_change(self,combo):
               :
	elif text == "x264_lossless":
		for profs in x265_profiles: <--- line number 462
			self.comboProfile.append_text(profs)