dependency of these values (e.g. RecordNumberOfFrames,
RecordMaxFramesPerSequence, RecordMaxFrames, RecordNum-
berOfFramesPerSequence).
INFO It is good practice to save the current frame size of the camera to UserSet1 as
soon as one of the parameters Width, Height, OffsetX or OffsetY gets changed
if a recording shall be used after RecordStandby.
4.4 Streaming programming
4.4.1 Overview
After recording is stopped the internal buffer of the camera is filled with a num-
ber of recorded frames. To enable streaming from the camera buffer to the
host, the feature AcquisitionSource must be set to 'Memory'.
The maximum of stream rate amounts to 30MB/s. If the picture is larger the
frame rate is smaller. Reading recorded frames from the camera to the host
can be done in two different modes:
n Single frame mode
n Frame burst mode
4.4.2 Single frame mode
Before reading a frame in single frame mode streaming must be activated by
performing the command AcquisitionStart. Now single frames can be read
from the camera just by setting their frame number in the feature
StreamSingleFrame. After setting the frame number, streaming of the frame
data to the host computer will start immediately.
A frame is addressed by its frame number which is the index of the frame in
the camera internal frame buffer. The frame number starts with 0 for the first
frame and goes up to RecordNumberOfFramesPerSequence-1 for the last
frame. If you recorded in multi-sequence mode you must select the sequence
you want to read from with the feature StreamSequenceSelector before read-
ing.
The programming flow:
StreamSequenceSelector = 0 or 1 or ...
Read the feature RecordNumberOfFramesPerSequence
AcquisitionSource = Memory
Perform AcquisitionStart
Set StreamSingleFrame to the requested frame number
...
AcquisitionStop
Programming
MikrotronGmbH / mini1 / CAMMC1370/71-RG / 2021 64 - 67
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