Function av_log_format_line

pub unsafe extern "C" fn av_log_format_line(
    ptr: *mut c_void,
    level: c_int,
    fmt: *const c_char,
    vl: va_list,
    line: *mut c_char,
    line_size: c_int,
    print_prefix: *mut c_int,
)

Format a line of log the same way as the default callback. @param line buffer to receive the formatted line @param line_size size of the buffer @param print_prefix used to store whether the prefix must be printed; must point to a persistent integer initially set to 1