Hello All!

I'm a beginner to the Gstream pipeline. Please help me in understanding the importance of frame-rate in Capsfilter in this pipeline.

In my current project, the pipeline is given as follows : "tcambin ! capsfilter ! videoflip ! videoconvert ! appsink"

I assume that below code snippet hopefully sets the capsfilter pipeline for frame rate and image dimension:

" gst_caps_new_simple("video/x-raw", "width", G_TYPE_INT, size.width, "height", G_TYPE_INT, size.height, "framerate", GST_TYPE_FRACTION,4, 1,nullptr);"

Now the issue that I'm facing is by keeping the exposure time to 83ms and 4fps (As in code), I'm getting a particular image intensity, whereas by varying the frame rate from 4 to 7fps with the same exposure time, the image intensity tends to decrease.

In my understanding, the frame-rate in capsfilter should not affect image intensity unless we change exposure time in image capture, which is not happening in my case.

Please help me to understand, how does framerate impacts image intensity when exposure time is constant. Thanks in advance.