Industrial Cameras FAQ/BlockID of acquired images are...
BlockID of acquired images are not continuous number in USB3.0 cameras (BU / DU series) or GigE Vision cameras(BG series). Does this means that frame-loss occurred?（No.1510）
When application is acquiring images using High-Level streaming API of SDK in the environment that CPU usage is high, TeliCamAPI may receive the next frame image (B) and save it in ring buffer inside TeliCamSDK during executing processing of current frame image (A) in ImageAcquired event handler.
In this case, ImageAcquired event for image (B) will be skipped and an image (C) next to image (B) will be handled as current frame at the next ImageAcquired event. If user checks BlockID of image (A) and image(C),user will misjudge that BlockID is not continuous.
If ring buffer index of current ImageAcquired event is not continuous number to that of previous ImageAcquired event, use Strm_LockBuffer() function to get images not processed yet.
if BlockID of images in ring buffer is not continuous, please set frame rate slower or set buffer count of ring buffer larger.
The default buffer count of ring buffer is 8. User application can specify buffer count by specifying buffer count as argument of Strm_OpenSimple() or CameraStream.Open(). User application can set buffer count up to 30.
In this case, ImageAcquired event for image (B) will be skipped and an image (C) next to image (B) will be handled as current frame at the next ImageAcquired event. If user checks BlockID of image (A) and image(C),user will misjudge that BlockID is not continuous.
If ring buffer index of current ImageAcquired event is not continuous number to that of previous ImageAcquired event, use Strm_LockBuffer() function to get images not processed yet.
if BlockID of images in ring buffer is not continuous, please set frame rate slower or set buffer count of ring buffer larger.
The default buffer count of ring buffer is 8. User application can specify buffer count by specifying buffer count as argument of Strm_OpenSimple() or CameraStream.Open(). User application can set buffer count up to 30.