星期二, 8月 19, 2008

JPEG

  • DHT
    • 0xff 0xc4 (2 byte)
    • 0x?? 0x?? ( 2byte length)
    • 0x??( 1byte )
      • bit 0-3 :
        • must <>
      • bit 4:
        • 0 = DC
        • 1 = AC
        • other = unknow
      • bit 5-7: must 0.
    • (16 byte )

Reference:

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