100644 blob af4b1bf51b791294db90878d03e917e051e7e6fd	extractor.hpp
100644 blob e9a93863f02fe5e97180dece6ccf2c2b02315b17	extractor_factory.hpp
100644 blob a672e52a3811794c55356a911f4d82c81953cb1b	png_extractor.hpp
100644 blob d2cffd12a2b23fc49f360cee451f5b0108804b9e	video_extractor.hpp