1*54f38fcaSMauro Carvalho Chehab.. Permission is granted to copy, distribute and/or modify this 2*54f38fcaSMauro Carvalho Chehab.. document under the terms of the GNU Free Documentation License, 3*54f38fcaSMauro Carvalho Chehab.. Version 1.1 or any later version published by the Free Software 4*54f38fcaSMauro Carvalho Chehab.. Foundation, with no Invariant Sections, no Front-Cover Texts 5*54f38fcaSMauro Carvalho Chehab.. and no Back-Cover Texts. A copy of the license is included at 6*54f38fcaSMauro Carvalho Chehab.. Documentation/userspace-api/media/fdl-appendix.rst. 7*54f38fcaSMauro Carvalho Chehab.. 8*54f38fcaSMauro Carvalho Chehab.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections 9*54f38fcaSMauro Carvalho Chehab 10*54f38fcaSMauro Carvalho Chehab.. _V4L2-SDR-FMT-PCU16BE: 11*54f38fcaSMauro Carvalho Chehab 12*54f38fcaSMauro Carvalho Chehab****************************** 13*54f38fcaSMauro Carvalho ChehabV4L2_SDR_FMT_PCU16BE ('PC16') 14*54f38fcaSMauro Carvalho Chehab****************************** 15*54f38fcaSMauro Carvalho Chehab 16*54f38fcaSMauro Carvalho ChehabPlanar complex unsigned 16-bit big endian IQ sample 17*54f38fcaSMauro Carvalho Chehab 18*54f38fcaSMauro Carvalho ChehabDescription 19*54f38fcaSMauro Carvalho Chehab=========== 20*54f38fcaSMauro Carvalho Chehab 21*54f38fcaSMauro Carvalho ChehabThis format contains a sequence of complex number samples. Each complex 22*54f38fcaSMauro Carvalho Chehabnumber consist of two parts called In-phase and Quadrature (IQ). Both I 23*54f38fcaSMauro Carvalho Chehaband Q are represented as a 16 bit unsigned big endian number stored in 24*54f38fcaSMauro Carvalho Chehab32 bit space. The remaining unused bits within the 32 bit space will be 25*54f38fcaSMauro Carvalho Chehabpadded with 0. I value starts first and Q value starts at an offset 26*54f38fcaSMauro Carvalho Chehabequalling half of the buffer size (i.e.) offset = buffersize/2. Out of 27*54f38fcaSMauro Carvalho Chehabthe 16 bits, bit 15:2 (14 bit) is data and bit 1:0 (2 bit) can be any 28*54f38fcaSMauro Carvalho Chehabvalue. 29*54f38fcaSMauro Carvalho Chehab 30*54f38fcaSMauro Carvalho Chehab**Byte Order.** 31*54f38fcaSMauro Carvalho ChehabEach cell is one byte. 32*54f38fcaSMauro Carvalho Chehab 33*54f38fcaSMauro Carvalho Chehab.. flat-table:: 34*54f38fcaSMauro Carvalho Chehab :header-rows: 1 35*54f38fcaSMauro Carvalho Chehab :stub-columns: 0 36*54f38fcaSMauro Carvalho Chehab 37*54f38fcaSMauro Carvalho Chehab * - Offset: 38*54f38fcaSMauro Carvalho Chehab - Byte B0 39*54f38fcaSMauro Carvalho Chehab - Byte B1 40*54f38fcaSMauro Carvalho Chehab - Byte B2 41*54f38fcaSMauro Carvalho Chehab - Byte B3 42*54f38fcaSMauro Carvalho Chehab * - start + 0: 43*54f38fcaSMauro Carvalho Chehab - I'\ :sub:`0[13:6]` 44*54f38fcaSMauro Carvalho Chehab - I'\ :sub:`0[5:0]; B1[1:0]=pad` 45*54f38fcaSMauro Carvalho Chehab - pad 46*54f38fcaSMauro Carvalho Chehab - pad 47*54f38fcaSMauro Carvalho Chehab * - start + 4: 48*54f38fcaSMauro Carvalho Chehab - I'\ :sub:`1[13:6]` 49*54f38fcaSMauro Carvalho Chehab - I'\ :sub:`1[5:0]; B1[1:0]=pad` 50*54f38fcaSMauro Carvalho Chehab - pad 51*54f38fcaSMauro Carvalho Chehab - pad 52*54f38fcaSMauro Carvalho Chehab * - ... 53*54f38fcaSMauro Carvalho Chehab * - start + offset: 54*54f38fcaSMauro Carvalho Chehab - Q'\ :sub:`0[13:6]` 55*54f38fcaSMauro Carvalho Chehab - Q'\ :sub:`0[5:0]; B1[1:0]=pad` 56*54f38fcaSMauro Carvalho Chehab - pad 57*54f38fcaSMauro Carvalho Chehab - pad 58*54f38fcaSMauro Carvalho Chehab * - start + offset + 4: 59*54f38fcaSMauro Carvalho Chehab - Q'\ :sub:`1[13:6]` 60*54f38fcaSMauro Carvalho Chehab - Q'\ :sub:`1[5:0]; B1[1:0]=pad` 61*54f38fcaSMauro Carvalho Chehab - pad 62*54f38fcaSMauro Carvalho Chehab - pad 63