154 static sox_effects_chain_t *effects_chain = NULL;  variable
1133     sox_delete_effects(effects_chain);  in advance_eff_chain()
1162       save_output_eff = sox_pop_effect_last(effects_chain);  in advance_eff_chain()
1164     while (effects_chain->length > 1)  in advance_eff_chain()
1165       sox_delete_effect_last(effects_chain);  in advance_eff_chain()
1176   return clips + mixing_clips + sox_effects_clips(effects_chain);  in total_clips()
1353   if (input_count == 1 && very_first_effchain && effects_chain->length > 1 &&  in optimize_trim()
1354       strcmp(effects_chain->effects[1][0].handler.name, "trim") == 0) {  in optimize_trim()
1356       uint64_t offset = sox_trim_get_start(&effects_chain->effects[1][0]);  in optimize_trim()
1362         sox_trim_clear_start(&effects_chain->effects[1][0]);  in optimize_trim()
1715   if (!effects_chain)  in process()
1716     effects_chain = sox_create_effects_chain(&combiner_encoding,  in process()
1718   add_effects(effects_chain);  in process()
1780   flow_status = sox_flow_effects(effects_chain, update_status, NULL);  in process()
3003   sox_delete_effects_chain(effects_chain);  in main()