capture_start
capture_start(struct ia_css_pipe *pipe);
err = capture_start(pipe);
err = capture_start(stream->pipes[i]);
char *buf = NULL, *capture_start, *capture_end, *scan_end;
capture_start = buf;
while (isspace(*capture_start))
++capture_start;
capture_end = capture_start;
scan_end = capture_start;
if (capture_end == capture_start)
err = insert_test(set, capture_start, is_glob_pattern);