#' Process video file
#'
#' @param ii integer: row od \code{Trial_Info} to process
#' @param Trial_Info data.frame: Structure containing all the trials to process
#' @param bef_aft string: Before or after flag
#' @param calibration_coords data.frame: Calibration coordinates
#'
#' @return data.frame
#' \enumerate{
#' \item \code{MouseID}
#' \item \code{Trial}
#' \item \code{Before_After}
#' \item \code{mean_speed}
#' \item \code{stride_frequency}
#' \item \code{mean_stride_length}
#' \item \code{n_strides_df}
#' \item \code{duty_factor}
#' \item \code{stance_width}
#' \item \code{sacrum_vert_displacement}
#' }
#'
#' @export
#'
process_video <- function(ii, Trial_Info, bef_aft, calibration_coords) {
# M is tibble of xyz points for eye, sacrum, hip, knee, ankle, foot with
# time and frame number
# cal_rotate is the rotated calibration points
message(ii)
M_cal_rotate <- process_kine_data(Trial_Info,
ii,
calibration_coords,
bef_aft)
M <- M_cal_rotate$M
cal_rotate <- M_cal_rotate$cal_rotate
# Calculate variables of interest
mean_speed <- preferred_speed(M)
strides <- stride_parameters(ii, M)
duty_factor <- duty_factor_calc(M, thresh = 0.7)
stance_width <- stance_width_calc(ii, M)
return(data.frame(
MouseID = Trial_Info$MouseID[ii],
Trial = Trial_Info$Trial[ii],
Before_After = Trial_Info$Before_After[ii],
mean_speed = mean_speed,
stride_frequency = strides$stride_frequency,
mean_stride_length = strides$mean_stride_length,
n_strides_df = duty_factor$n_strides_df,
duty_factor = duty_factor$duty_factor,
stance_width = stance_width$mean_stance_width,
sacrum_vert_displacement = stance_width$sacrum_vert_displacement))
}
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