#import <NvsMediaFileVideoRetriever.h>
◆ cancelTask:
      
        
          | - (void) cancelTask:  | 
           | 
          (int64_t)  | 
          taskId | 
           | 
        
      
 
 
◆ close
◆ decodeVideoSegment:fromPosition:toPosition:customHeight:grabInterval:flags:
      
        
          | - (int64_t) decodeVideoSegment:  | 
           | 
          (NSString *)  | 
          srcFile | 
        
        
          | fromPosition: | 
           | 
          (int64_t)  | 
          fromPosition | 
        
        
          | toPosition: | 
           | 
          (int64_t)  | 
          toPosition | 
        
        
          | customHeight: | 
           | 
          (int)  | 
          customHeight | 
        
        
          | grabInterval: | 
           | 
          (int)  | 
          grabInterval | 
        
        
          | flags: | 
           | 
          (int)  | 
          flags  | 
        
        
           | 
           | 
           |  | 
        
      
 
 
◆ decodeVideoSegment:fromPosition:toPosition:outputPixelFormat:customHeight:grabInterval:flags:
      
        
          | - (int64_t) decodeVideoSegment:  | 
           | 
          (NSString *)  | 
          srcFile | 
        
        
          | fromPosition: | 
           | 
          (int64_t)  | 
          fromPosition | 
        
        
          | toPosition: | 
           | 
          (int64_t)  | 
          toPosition | 
        
        
          | outputPixelFormat: | 
           | 
          (NvsVideoFramePixelFormat)  | 
          outputPixelFormat | 
        
        
          | customHeight: | 
           | 
          (int)  | 
          customHeight | 
        
        
          | grabInterval: | 
           | 
          (int)  | 
          grabInterval | 
        
        
          | flags: | 
           | 
          (int)  | 
          flags  | 
        
        
           | 
           | 
           |  | 
        
      
 
 
◆ getAVFileInfo:
◆ isClosed
◆ delegate
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