screen recording method return sampleBuffer is nil

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Hello. Can you provide more information about your code and how you are calling this routine? If you can provide a code listing that would be helpful.

here is my code

 -(void)startCaptureScreen {
NSLog(@"AKA++ startCaptureScreen");
if ([[RPScreenRecorder sharedRecorder] isRecording]) {
    return;
}
 
 
//屏幕录制
 
[[RPScreenRecorder sharedRecorder]setMicrophoneEnabled:YES];
NSLog(@"AKA++ MicrophoneEnabled AAAA startCaptureScreen");
[[RPScreenRecorder sharedRecorder]setCameraEnabled:YES];
[[RPScreenRecorder sharedRecorder] startCaptureWithHandler:^(CMSampleBufferRef  _Nonnull sampleBuffer, RPSampleBufferType bufferType, NSError * _Nullable error) {
 
    if(self.assetWriter == nil){
 
        if (self.AVAssetWriterStatus == 0) {
            [self setupAssetWriterAndStartWith:sampleBuffer];
        }
        
    }
    if (self.AVAssetWriterStatus != 2) {
 
        return;
    }
    if (error) {
// deal with error
        return;
    }
    if (self.assetWriter.status != AVAssetWriterStatusWriting) {
       
        [self assetWriterAppendSampleBufferFailWith:bufferType];
        return;
    }
    
 
    if (bufferType == RPSampleBufferTypeVideo) {
        
 
        if(self.assetWriter.status == 0 ||self.assetWriter.status > 2){
   
        } else if(self.videoAssetWriterInput.readyForMoreMediaData == YES){
 
            BOOL success =  [self.videoAssetWriterInput appendSampleBuffer:sampleBuffer];
     
            }
 
        }
        
       
    
 
 
    if (bufferType == RPSampleBufferTypeAudioMic) {
        if(self.assetWriter.status == 0 ||self.assetWriter.status > 2){
            
        } else if(self.audioAssetWriterInput.readyForMoreMediaData == YES){
            
            BOOL success = [self.audioAssetWriterInput appendSampleBuffer:sampleBuffer];
            
            
            
        }
        
    }
 
 
} completionHandler:^(NSError * _Nullable error) {
  
 
//deal with error
}];
}

and than ,when want to save it :

-(void)stopRecording {
 
if([[RPScreenRecorder sharedRecorder] isRecording]){
 // The problem is sporadic,recording action failed,it makes me confused 
}
  [[RPScreenRecorder sharedRecorder] stopCaptureWithHandler:^(NSError * _Nullable error) {
    if(!error) {
      //post message
      }
  }];
}

Thanks for the code listings. I looked through the sources and could not find any reason why the sampleBuffer would be NULL. It appears to be copied straight from a call to CMIOSampleBufferCreateForImageBuffer.

Our engineering teams need to investigate this issue, as resolution may involve changes to Apple's software.

Please file a bug report that includes a Xcode project and some directions that can be used to reproduce the problem. And after that please post the bug number here. I'll check the status and provide an update (if there's anything to report) next time I do a sweep of forums posts where I've suggested bug reports.