(const void **)&samplerate, o->sdi);
ctx->samplerate = *samplerate;
if (!((samplerate_s = sr_samplerate_string(ctx->samplerate)))) {
(const void **)&samplerate, o->sdi);
ctx->samplerate = *samplerate;
if (!((samplerate_s = sr_samplerate_string(ctx->samplerate)))) {