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1.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later2 3.. _V4L2-SDR-FMT-PCU18BE:4 5******************************6V4L2_SDR_FMT_PCU18BE ('PC18')7******************************8 9Planar complex unsigned 18-bit big endian IQ sample10 11Description12===========13 14This format contains a sequence of complex number samples. Each complex15number consist of two parts called In-phase and Quadrature (IQ). Both I16and Q are represented as a 18 bit unsigned big endian number stored in1732 bit space. The remaining unused bits within the 32 bit space will be18padded with 0. I value starts first and Q value starts at an offset19equalling half of the buffer size (i.e.) offset = buffersize/2. Out of20the 18 bits, bit 17:2 (16 bit) is data and bit 1:0 (2 bit) can be any21value.22 23**Byte Order.**24Each cell is one byte.25 26.. flat-table::27 :header-rows: 128 :stub-columns: 029 30 * - Offset:31 - Byte B032 - Byte B133 - Byte B234 - Byte B335 * - start + 0:36 - I'\ :sub:`0[17:10]`37 - I'\ :sub:`0[9:2]`38 - I'\ :sub:`0[1:0]; B2[5:0]=pad`39 - pad40 * - start + 4:41 - I'\ :sub:`1[17:10]`42 - I'\ :sub:`1[9:2]`43 - I'\ :sub:`1[1:0]; B2[5:0]=pad`44 - pad45 * - ...46 * - start + offset:47 - Q'\ :sub:`0[17:10]`48 - Q'\ :sub:`0[9:2]`49 - Q'\ :sub:`0[1:0]; B2[5:0]=pad`50 - pad51 * - start + offset + 4:52 - Q'\ :sub:`1[17:10]`53 - Q'\ :sub:`1[9:2]`54 - Q'\ :sub:`1[1:0]; B2[5:0]=pad`55 - pad56