Hi Fritz, On 16/01/2021 04:33, Fritz Koenig wrote: > 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 > The type is telling you useful information there, is that what you are after? > 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. The type expresses if it's from an output queue or a capture queue. type=vid-out-mplane : Output queue type=vid-cap-mplane : Capture queue That's not so helpful/useful on the UNSUBSCRIBE_EVENT lines though, but your specific request is regarding STREAMOFF. I hope that helps you read the logs a little. -- Kieran
