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From: Fritz Koenig <frkoenig@google.com>
To: Linux Media Mailing List <linux-media@vger.kernel.org>
Subject: V4L2 logging for multiple streams
Date: Fri, 15 Jan 2021 20:33:49 -0800	[thread overview]
Message-ID: <CAMfZQbzay0+tyYvZmF_L=iYfp+F02iz3qz=a=J1Yuf55P=RebA@mail.gmail.com> (raw)

Hi,

I'm trying to sort some issues with regards to decoding multiple
streams at once.  Logging can be helpful with messages like this:

[105188.500450] video2: VIDIOC_STREAMOFF: type=vid-out-mplane

but when I have:

[105188.498697] video2: VIDIOC_STREAMOFF: type=vid-out-mplane
[105188.498715] video2: VIDIOC_STREAMOFF: type=vid-cap-mplane
[105188.499116] video2: VIDIOC_UNSUBSCRIBE_EVENT: type=0x5, id=0x0, flags=0x0
[105188.500450] video2: VIDIOC_STREAMOFF: type=vid-out-mplane
[105188.500467] video2: VIDIOC_STREAMOFF: type=vid-cap-mplane
[105188.500611] video2: VIDIOC_UNSUBSCRIBE_EVENT: type=0x5, id=0x0, flags=0x0
[105188.501879] video2: VIDIOC_UNSUBSCRIBE_EVENT: type=0x5, id=0x0, flags=0x0
[105188.502276] video2: VIDIOC_STREAMOFF: type=vid-out-mplane
[105188.502331] video2: VIDIOC_STREAMOFF: type=vid-cap-mplane

I can't tell which stream VIDIOC_STREAMOFF is associated with.  Is
there a logging option that I'm missing that would help indicate which
stream that ioctl is associated with.

Thanks.

-Fritz

             reply	other threads:[~2021-01-16  4:34 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-16  4:33 Fritz Koenig [this message]
2021-01-20 10:07 ` V4L2 logging for multiple streams Kieran Bingham
2021-02-06  0:59   ` Fritz Koenig
2021-01-28 21:44 ` Nicolas Dufresne
2021-02-01 18:53   ` Fritz Koenig

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