Update yue.py

yue.py

@@ -272,6 +272,7 @@ async def main():
                                                         buffer.truncate(0)
                                                         PIL.Image.fromarray(reader[-1]).save(buffer, format='png')
                                                         with av.open(io.BytesIO(await sys.modules.get(__name__).google(script.get('narration'))), format='mp3') as container:
+                                                            if not audio: audio = writer.add_stream('aac', rate=container.streams.audio[0].rate)                               
                                                             speed = builtins.float(container.streams.audio[0].duration * container.streams.audio[0].time_base) / 10
                                                             graph = av.filter.Graph()
                                                             graph.link_nodes(graph.add_abuffer(template=container.streams.audio[0]), graph.add('atempo', builtins.str(speed)), graph.add('apad', 'whole_dur=10'), graph.add('atrim', '0:10'), graph.add('abuffersink')).configure()