Buffer timeout status after buffer underflow

[Pibben]

Describe the bug
I'm using the Aravis library with a GenICam ethernet camera.

If I don’t call arv_stream_timeout_pop_buffer() often enough and Aravis runs out of input buffers and gets buffer underruns, after a while (a few calls) I start to get ARV_BUFFER_STATUS_TIMEOUT status on my buffers. Why does buffer underrun cause timeouts to happen? What can I do about it?

To Reproduce
Steps to reproduce the behavior:

• Set up streaming from camera
• Call arv_stream_timeout_pop_buffer at a frequency lower than the camera frame rate
• After a while the returned buffers have ARV_BUFFER_STATUS_TIMEOUT status

Expected behavior
The buffers having ARV_BUFFER_STATUS_SUCCESS status.

Camera description:

• Dalsa
• Genie Nano
• Ethernet

Platform description:

• Aravis version 0.8.20
• OS: Ubuntu 20.04
• Hardware x86_64

[EmmanuelP]

Could run your software with ARV_DEBUG=all:3 and attach the console output here.