rames, output_frames ;
          long   input_frames_used, output_frames_gen ;

          int    end_of_input ;

          double src_ratio ;
      } SRC_DATA ;
</PRE>
<P>
The fields of this struct which must be filled in by the caller are:
</P>
<PRE>
      data_in       : A pointer to the input data samples.
      input_frames  : The number of frames of data pointed to by data_in.
      data_out      : A pointer to the output data samples.
      output_frames : Maximum number of frames pointer to by data_o