virtual int process_loop(Samples *buffer, int64_t &write_length) { return 1; };
virtual int process_loop(Samples **buffers, int64_t &write_length) { return 1; };
int plugin_process_loop(Samples **buffers, int64_t &write_length);
virtual int process_loop(Samples *buffer, int64_t &write_length) { return 1; };
virtual int process_loop(Samples **buffers, int64_t &write_length) { return 1; };
int plugin_process_loop(Samples **buffers, int64_t &write_length);