diff --git a/media/libmedia/include/IMediaExtractorService.h b/media/libmedia/include/IMediaExtractorService.h
index 4d7b317..45e9620 100644
--- a/media/libmedia/include/IMediaExtractorService.h
+++ b/media/libmedia/include/IMediaExtractorService.h
@@ -32,6 +32,7 @@
 
     virtual sp<IMediaExtractor> makeExtractor(const sp<IDataSource> &source, const char *mime) = 0;
 
+    virtual sp<IDataSource> makeIDataSource(int fd, int64_t offset, int64_t length) = 0;
 };
 
 class BnMediaExtractorService: public BnInterface<IMediaExtractorService>