PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
PA_CHECK_VALIDITY_RETURN_NULL(c, name && *name, PA_ERR_INVALID);
PA_CHECK_VALIDITY_RETURN_NULL(c, !dev || *dev, PA_ERR_INVALID);
- PA_CHECK_VALIDITY_RETURN_NULL(c, p, PA_ERR_INVALID);
PA_CHECK_VALIDITY_RETURN_NULL(c, c->version >= 13, PA_ERR_NOTSUPPORTED);
o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
pa_tagstruct_putu32(t, volume);
pa_tagstruct_puts(t, name);
- pa_tagstruct_put_proplist(t, p);
+
+ if (p)
+ pa_tagstruct_put_proplist(t, p);
+ else {
+ p = pa_proplist_new();
+ pa_tagstruct_put_proplist(t, p);
+ pa_proplist_free(p);
+ }
pa_pstream_send_tagstruct(c->pstream, t);
pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, play_sample_with_proplist_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);