- jack_nframes_t read (Sample *dst, Sample *mixdown, float *gain_buffer, char * workbuf, jack_nframes_t start, jack_nframes_t cnt, uint32_t chan_n=0);
+ jack_nframes_t read (Sample *dst, Sample *mixdown, float *gain_buffer, jack_nframes_t start, jack_nframes_t cnt, uint32_t chan_n=0);