ut.
      src_ratio     : Equal to output_sample_rate / input_sample_rate.
      end_of_input  : Equal to 0 if more input data is available and 1 
                      otherwise.
</PRE>
<P>
Note that the data_in and data_out arrays may not overlap. If they do, the 
library will return an error code.
</P>
<P>
When the <B>src_process</B> function returns <B>output_frames_gen</B> will be 
set to the number of output frames generated and <B>input_frames_used</B> will 
be set to the number of input frames consu