- if (ret == 0)
- return;
- if (ret < 0 || !powd)
- return sched_min_delay(s);
- assert(powd->sample_rate > 0);
- assert(wn->min_iqs > 0);
- numbytes = powd->to->remaining * sizeof(short);
- factor = numbytes / powd->sample_rate / wn->min_iqs;
- tv_scale(factor, &tmp, &delay);
- sched_request_timeout(&delay, s);
+ ret = task_get_notification(t);
+ if (ret < 0)
+ goto fail;
+ if (!powd) {
+ ret = btr_node_status(btrn, wn->min_iqs, BTR_NT_LEAF);
+ if (ret == 0)
+ return 0;
+ if (ret < 0)
+ goto fail;
+ ret = core_audio_init(wn);
+ if (ret < 0)
+ goto fail;
+ powd = wn->private_data;
+ ret = -E_UNIT_START;
+ if (AudioOutputUnitStart(powd->audio_unit) != noErr) {
+ AudioUnitUninitialize(powd->audio_unit);
+ CloseComponent(powd->audio_unit);
+ btr_remove_node(&powd->callback_btrn);
+ goto fail;
+ }
+ }
+ mutex_lock(powd->mutex);
+ ret = btr_node_status(btrn, wn->min_iqs, BTR_NT_INTERNAL);
+ if (ret > 0)
+ btr_pushdown(btrn);
+ if (ret < 0 && need_drain_delay(powd))
+ ret = 0;
+ mutex_unlock(powd->mutex);
+ if (ret >= 0)
+ return 0;
+fail:
+ assert(ret < 0);
+ if (powd && powd->callback_btrn) {
+ AudioOutputUnitStop(powd->audio_unit);
+ AudioUnitUninitialize(powd->audio_unit);
+ CloseComponent(powd->audio_unit);
+ btr_remove_node(&powd->callback_btrn);
+ }
+ btr_remove_node(&wn->btrn);
+ PARA_NOTICE_LOG("%s\n", para_strerror(-ret));
+ return ret;