0
我目前正在製作音樂應用程序,您可以添加新樂器作爲音樂序列的曲目。如何動態地添加新樂器AUGraph
這裏是我有當一個新的軌道已添加:
MusicPlayerStop(_musicPlayer);
status = MusicSequenceNewTrack(sequence, &tracks[tracksCount]);
timeDiff = 32.f/_tempo;
[self setLoopDuration:currentLoopDuration forPattern:tracks[tracksCount]];
AudioComponentDescription samplerNodeDesc;
samplerNodeDesc.componentManufacturer = (OSType)kAudioUnitManufacturer_Apple;
samplerNodeDesc.componentType = (OSType)kAudioUnitType_MusicDevice;
samplerNodeDesc.componentSubType = (OSType)kAudioUnitSubType_Sampler;
samplerNodeDesc.componentFlags = 0;
samplerNodeDesc.componentFlagsMask = 0;
status = AUGraphAddNode(graph, &samplerNodeDesc, &auNodes[tracksCount]);
status = AUGraphNodeInfo(graph, auNodes[tracksCount], 0, &audioUnits[tracksCount]);
status = AUGraphConnectNodeInput(graph, auNodes[tracksCount], 0, filterNode, 0);
status = MusicTrackSetDestNode(tracks[tracksCount], auNodes[tracksCount]);
int trackId = tracksCount;
tracksCount++;
MusicPlayerStart(_musicPlayer);
return trackId;
下不產生音頻可言,我能做些什麼在這裏吧。
非常感謝!
你能夠讓音樂播放器工作嗎? – dave234
@dave我已經添加到我的代碼,仍然不能得到它的工作! :( – ipalibowhyte
@dave我們應該繼續聊天,當我得到它的工作我發佈答案? – ipalibowhyte