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尝试转换从相机录制的视频或从图库中选择的视频时出错： * 由于未捕获的异常“NSInvalidArgumentException”而终止应用程序，原因：“* -[AVAssetWriterInput appendSampleBuffer:] 无法附加样本缓冲区：第一个输入缓冲区必须具有适当的kCMSampleBufferAttachmentKey_TrimDurationAtStart 因为编解码器有编码器延迟'`

这在这里讨论：CMSampleBufferRef kCMSampleBufferAttachmentKey_TrimDurationAtStart crash

但没有达成任何决议。

这是我的代码：

[self.audioInput requestMediaDataWhenReadyOnQueue:self.audioQueue usingBlock:^{
        CMSampleBufferRef buffer;
        LIMTAssetFileWriter * __strong strongSelf = weakSelf;
        while (strongSelf.audioInput.isReadyForMoreMediaData) {
            LIMTPayload *payload = [strongSelf.cache dequeuePayloadForType:LIMTPayloadTypeAudio];
            buffer = payload.getCMSampleBuffer;
            if (buffer) {
                if (!strongSelf.sessionStarted) {
                    [strongSelf.assetWriter startSessionAtSourceTime:CMSampleBufferGetPresentationTimeStamp(buffer)];
                    strongSelf.sessionStarted = YES;
                }
                [strongSelf.audioInput appendSampleBuffer:buffer];
                [LIMTLogger.sharedLogger logInfo:@"Audio buffer appended"];
                CFRelease(buffer);
                buffer = NULL;
            } else if ([strongSelf.cache statusForType:kCMMediaType_Audio] == LIMTCacheStatusCompleted) {
                [strongSelf.audioInput markAsFinished];
                [LIMTLogger.sharedLogger logInfo:@"Audio complete"];
                dispatch_group_leave(strongSelf.dispatchGroup);
                break;
            } else {
                break;
            }
        }
    }];

这里发生错误：[strongSelf.audioInput appendSampleBuffer:buffer];

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