When using some Dahua cameras, it prompts "no frame!"

[51jintian]

Describe the bug
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When using some Dahua cameras, it prompts "no frame!". In this case, the screen of the instance can be played, but the CPU usage is very high. If the -o parameter is used, there is no video screen display, and the screen keeps spinning.

To Reproduce
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2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior
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Screenshots
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Desktop (please complete the following information):

• OS: [e.g. iOS]windows 11 22621.2715
• Browser [e.g. chrome, safari] edge，chrome
• Version [e.g. 22] webrtc-streamer-v0.8.4-dirty-Windows-AMD64-Release

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context
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[mpromonet]

Hi,

The ffmpeg log "no frame!" just means ther is no frame in the packet, it may be problems in parsing. Increasing loglevel may helps you.

Best Regards,
Michel.