1 .. -*- coding: utf-8; mode: rst -*-
2 .. _V4L2-SDR-FMT-PCU20BE:
4 ******************************
5 V4L2_SDR_FMT_PCU20BE ('PC20')
6 ******************************
8 Planar complex unsigned 20-bit big endian IQ sample
13 This format contains a sequence of complex number samples. Each complex
14 number consist of two parts called In-phase and Quadrature (IQ). Both I
15 and Q are represented as a 20 bit unsigned big endian number stored in
16 32 bit space. The remaining unused bits within the 32 bit space will be
17 padded with 0. I value starts first and Q value starts at an offset
18 equalling half of the buffer size (i.e.) offset = buffersize/2. Out of
19 the 20 bits, bit 19:2 (18 bit) is data and bit 1:0 (2 bit) can be any
23 Each cell is one byte.
37 - I'\ :sub:`0[3:0]; B2[3:0]=pad`
42 - I'\ :sub:`1[3:0]; B2[3:0]=pad`
48 - Q'\ :sub:`0[3:0]; B2[3:0]=pad`
50 * - start + offset + 4:
53 - Q'\ :sub:`1[3:0]; B2[3:0]=pad`