.....

    result = file.read(index=0, **kwargs)
  File "/home/hkcq2004new/miniconda3/envs/gd-mae/lib/python3.7/site-packages/imageio/plugins/pyav.py", line 481, in read
    desired_frame = next(self._decoder)
  File "av/container/input.pyx", line 203, in decode
  File "av/packet.pyx", line 87, in av.packet.Packet.decode
  File "av/stream.pyx", line 172, in av.stream.Stream.decode
  File "av/codec/context.pyx", line 524, in av.codec.context.CodecContext.decode
  File "av/codec/context.pyx", line 427, in av.codec.context.CodecContext._send_packet_and_recv
  File "av/error.pyx", line 336, in av.error.err_check
av.error.InvalidDataError: [Errno 1094995529] Invalid data found when processing input; last error log: [png] Invalid PNG signature 0xD84B8508130500E3.

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