MIX_SPDIF_IN
mixer->set_input_left(mixer, MIX_SPDIF_IN, NULL);
mixer->set_input_right(mixer, MIX_SPDIF_IN, NULL);
mixer->set_input_left(mixer, MIX_SPDIF_IN, &src->rsc);
mixer->set_input_right(mixer, MIX_SPDIF_IN, &src->rsc);
case MIX_SPDIF_IN: return AMIXER_SPDIFI;