AVAssetWriter-未知错误代码= -16351

Question

我正在使用AVAssetWriter将原始视频数据（H264 / Mpeg4）流写入文件，而无需重新编码。成功写入前两个数据块后，出现错误：

let isAppended = videoInput!.append(sampleBuffer!)  


Error Domain=AVFoundationErrorDomain Code=-11800 \"The operation could not be completed\"   
UserInfo={NSLocalizedFailureReason=An unknown error occurred (-16351),   
NSLocalizedDescription=The operation could not be completed, NSUnderlyingError=0x1c085dee0   
{Error Domain=NSOSStatusErrorDomain Code=-16351 \"(null)\"}} 

找不到有关该错误含义和解决方法的任何文档？