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I am using an IP camera , opened in OpenCV. While displaying the output of the Camera I'm getting errors like ;

[h264 @ 0xd1c440] left block unavailable for requested intra mode at 0 42 [h264 @ 0xd1c440] error while decoding MB 0 42, bytestream (0) [h264 @ 0xd1c000] cabac decode of qscale diff failed at 50 40 [h264 @ 0xd1c000] error while decoding MB 50 40, bytestream (-1) [h264 @ 0xd1c440] cabac decode of qscale diff failed at 101 21 [h264 @ 0xd1c440] error while decoding MB 101 21, bytestream (0) [h264 @ 0xd1c440] cabac decode of qscale diff failed at 35 6 [h264 @ 0xd1c440] error while decoding MB 35 6, bytestream (-1) [h264 @ 0xde49c0] cabac decode of qscale diff failed at 28 53 [h264 @ 0xde49c0] error while decoding MB 28 53, bytestream (15141)

Can anyone suggest what going on and how to fix this ?

Thanks Sam

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  • Update the software?
    – Ken Sharp
    Mar 10, 2017 at 8:12
  • OpenCV? Its 3.1 already
    – Sam
    Mar 10, 2017 at 8:54
  • Can you watch the output of the camera in ffmpeg? If yes, I am afraid, you will have to setup the online decoding with ffmpeg into YUV stream, and send that to your OpenCV. Not every h264 is actually h264.
    – Barafu Albino
    Mar 11, 2017 at 8:14

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