sf_daq_buffer/sf-writer

sf-writer

sf-writer reads the binary buffer from disk, assembled the images and writes them down in HDF5 format.

Data request ranges

Data request ranges are composed of:

• start_pulse_id (first pulse_id to be included in the file)
• stop_pulse_id (last pulse_id to be included in the file)
• pulse_id_step (how many pulses to skip between images.)

pulse_id_step can be used to write data at different frequencies:

• pulse_id_step == 1 (100Hz, write very pulse_id)
• pulse_id_step == 2 (50hz, write every second pulse)
• pulse_id_step == 10 (10Hz, write every 10th pulse)

The next pulse_id to be written is calculated internally as:

auto next_pulse_id = currnet_pulse_id + pulse_id_step;

The loop criteria for writing is:

for (
        auto curr_pulse_id = start_pulse_id; 
        curr_pulse_id <= stop_pulse_id;
        curr_pulse_id += pulse_id_step
) {
    // Write curr_pulse_id to output file.
}

Warning

If your stop_pulse_id cannot be reached by adding step_pulse_id to start_pulse_id (start_pulse_id + (n * pulse_id_step) != stop_pulse_id for any n) it will not be included in the final file.