bytes 0-3 signature: 'DKIF' bytes 4-5 version (should be 0) bytes 6-7 length of header in bytes bytes 8-11 codec FourCC (e.g., 'VP80') bytes 12-13 width in pixels bytes 14-15 height in pixels bytes 16-19 frame rate bytes 20-23 time scale bytes 24-27 number of frames in file bytes 28-31 unused 44 4B 49 46 bytes 0-3 DKIF 00 00 bytes 4-5 version (should be 0) 20 00 bytes 6-7 length of header in bytes 56 50 39 30 bytes 8-11 codec FourCC (e.g., ‘VP90’) 00 05 1280 D0 02 720 E8 03 00 00 01 00 00 00FFFFFFFFFFFFFFFF 0xA3 0x6B 00 00 00 00 00 00 82 = 1000 0010 0 <- profile (2bits) 0 <- show_existing_frame (1bit) 0 <- frame_type (1bit) 1 <- show_frame (1bit) 0 <- error_resilient_mode (1bit)** 0x49 0x83 0x42 7.2.1 Frame sync semantics frame_sync_byte_0 shall be equal to 0x49. frame_sync_byte_1 shall be equal to 0x83. frame_sync_byte_2 shall be equal to 0x42 0 0 <- color_space (3bits) 0 <- color_range (1bit) 04FF 02CF 1279 ...