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OpenCV rtmp video capture introduces up to 5 seconds delay on video processing #1

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opened 2021-01-31 19:41:09 +01:00 by itssme · 1 comment
itssme commented 2021-01-31 19:41:09 +01:00 (Migrated from github.com)
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Describe the bug
OpenCV rtmp video capture introduces up to 5 seconds delay on video processing.

To Reproduce
Steps to reproduce the behaviour:

  1. import compLib Vision module
  2. run the example code provided in the documentation and timestamp the published image frames
  3. See error when viewing the processed rtmp stream

Expected behaviour
OpenCV should capture the rtmp stream in low latency mode similar to mpv when viewing the stream.

Device

  • Raspberry Pie: 3b+
  • OS: provided image
  • Version 0.0.4-16 (affects all version of version module)

Additional context
Not necessary

**Describe the bug** OpenCV rtmp video capture introduces up to 5 seconds delay on video processing. **To Reproduce** Steps to reproduce the behaviour: 1. import compLib Vision module 2. run the example code provided in the documentation and timestamp the published image frames 3. See error when viewing the processed rtmp stream **Expected behaviour** OpenCV should capture the rtmp stream in low latency mode similar to mpv when viewing the stream. **Device** - Raspberry Pie: 3b+ - OS: provided image - Version 0.0.4-16 (affects all version of version module) **Additional context** Not necessary
itssme commented 2021-02-06 02:44:52 +01:00 (Migrated from github.com)
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workaround since version 0.0.4-17, rtmp stream is now disabled and direct camera access is used

workaround since version 0.0.4-17, rtmp stream is now disabled and direct camera access is used
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Reference: compAIR/compLIB#1
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