opj_dump -i frame00000000.j2k [INFO] Start to read j2k main header (0). [INFO] Main header has been correctly decoded. Image info { x0=0, y0=0 x1=4096, y1=2160 numcomps=3 component 0 { dx=1, dy=1 prec=10 sgnd=0 } component 1 { dx=2, dy=2 prec=10 sgnd=0 } component 2 { dx=2, dy=2 prec=10 sgnd=0 } } Codestream info from main header: { tx0=0, ty0=0 tdx=4096, tdy=2160 tw=1, th=1 default tile { csty=0 prg=0 numlayers=1 mct=0 comp 0 { csty=0 numresolutions=7 cblkw=2^6 cblkh=2^6 cblksty=0 qmfbid=1 preccintsize (w,h)=(15,15) (15,15) (15,15) (15,15) (15,15) (15,15) (15,15) qntsty=0 numgbits=1 stepsizes (m,e)=(0,12) (0,13) (0,13) (0,14) (0,13) (0,13) (0,14) (0,13) (0,13) (0,14) (0,13) (0,13) (0,14) (0,13) (0,13) (0,13) (0,12) (0,12) (0,13) roishift=0 } comp 1 { csty=0 numresolutions=7 cblkw=2^6 cblkh=2^6 cblksty=0 qmfbid=1 preccintsize (w,h)=(15,15) (15,15) (15,15) (15,15) (15,15) (15,15) (15,15) qntsty=0 numgbits=1 stepsizes (m,e)=(0,12) (0,13) (0,13) (0,14) (0,13) (0,13) (0,14) (0,13) (0,13) (0,14) (0,13) (0,13) (0,14) (0,13) (0,13) (0,13) (0,12) (0,12) (0,13) roishift=0 } comp 2 { csty=0 numresolutions=7 cblkw=2^6 cblkh=2^6 cblksty=0 qmfbid=1 preccintsize (w,h)=(15,15) (15,15) (15,15) (15,15) (15,15) (15,15) (15,15) qntsty=0 numgbits=1 stepsizes (m,e)=(0,12) (0,13) (0,13) (0,14) (0,13) (0,13) (0,14) (0,13) (0,13) (0,14) (0,13) (0,13) (0,14) (0,13) (0,13) (0,13) (0,12) (0,12) (0,13) roishift=0 } } } Codestream index from main header: { Main header start position=0 Main header end position=200 Marker list: { type=0xff4f, pos=0, len=2 type=0xff51, pos=2, len=49 type=0xff52, pos=51, len=14 type=0xff5c, pos=65, len=24 type=0xff64, pos=89, len=17 type=0xff64, pos=106, len=94 } }