return sink_printf(output, "%ld:%02ld",
length / 60, length % 60) < 0 ? -1 : 0;
return sink_writes(output, " ") < 0 ? -1 : 0;
return sink_printf(output, "%ld:%02ld",
length / 60, length % 60) < 0 ? -1 : 0;
return sink_writes(output, " ") < 0 ? -1 : 0;