Could not find codec parameters for stream 0 (Video: h264, none): unspecified size Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options

[kkangshen]

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Overview

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Occurs when using pyav to parse H264 data 。
Could not find codec parameters for stream 0 (Video: h264, none): unspecified size
Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options

Expected behavior

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` container = av.open(rawFrames, format='h264', mode='r')
original_codec_ctx = container.streams.video[0].codec_context
codec = av.codec.CodecContext.create(original_codec_ctx.name, 'r')

  pts_offset = None
  got_key_frame = False

  for inf ,packet in enumerate(container.demux()):
      frames = codec.decode(packet)

`

Actual behavior

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Traceback:

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Investigation

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Research

I have done the following:

• Checked the PyAV documentation
• Searched on Google
• Searched on Stack Overflow
• Looked through old GitHub issues
• Asked on PyAV Gitter
• ... and waited 72 hours for a response.

Additional context

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