Streaming of SVBONY camera does not stop

[tail-feather]

I found a condition that does not terminate when trying to abort streaming.

Normally, if streaming aborted, the SVBGetVideoData returns an error (SVB_ERROR_TIMEOUT) and streaming stops.

If the SVBGetVideoData does not return an error, the CCD_ABORT_EXPOSURE_PROPERTY remains busy. (But it can be stopped by executing the abort process twice.)

This problem occurs rarely under the following conditions:

• Camera: SV405CC
• CCD_STREAMING property
  • EXPOSURE: 0.05
  • COUNT: -1

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I have a question about the aborting process.

In the svb_clear_video_buffer function, the SVBGetVideoData function is called until it returns an error (SVB_ERROR_TIMEOUT).

Am I correct in my understanding that in the streaming_timer_callback function, it stops when the SVBGetVideoData function fails?

[tail-feather]

If streaming aborting, break is executed on this block. https://github.com/indigo-astronomy/indigo/blob/41cc06eed5a8bbc8b43d478589b1404840eb6bdc/indigo_drivers/ccd_svb/indigo_ccd_svb.c#L556-L559

Since the res variable is only updated by the above SVBSendSoftTrigger function, it appears that streaming is not aborted as long as this function continues to succeed.

https://github.com/indigo-astronomy/indigo/blob/41cc06eed5a8bbc8b43d478589b1404840eb6bdc/indigo_drivers/ccd_svb/indigo_ccd_svb.c#L551

[rumengb]

hopefully fixed: 7480328a9580b12b87a82cdb1712dd1ce613ed01

[tail-feather]

I've tried it. It seems to work. Thank you very much!