1 .. -*- coding: utf-8; mode: rst -*-
3 .. _V4L2-SDR-FMT-PCU18BE:
5 ******************************
6 V4L2_SDR_FMT_PCU18BE ('PC18')
7 ******************************
9 Planar complex unsigned 18-bit big endian IQ sample
14 This format contains a sequence of complex number samples. Each complex
15 number consist of two parts called In-phase and Quadrature (IQ). Both I
16 and Q are represented as a 18 bit unsigned big endian number stored in
17 32 bit space. The remaining unused bits within the 32 bit space will be
18 padded with 0. I value starts first and Q value starts at an offset
19 equalling half of the buffer size (i.e.) offset = buffersize/2. Out of
20 the 18 bits, bit 17:2 (16 bit) is data and bit 1:0 (2 bit) can be any
24 Each cell is one byte.
38 - I'\ :sub:`0[1:0]; B2[5:0]=pad`
43 - I'\ :sub:`1[1:0]; B2[5:0]=pad`
49 - Q'\ :sub:`0[1:0]; B2[5:0]=pad`
51 * - start + offset + 4:
54 - Q'\ :sub:`1[1:0]; B2[5:0]=pad`