2.13.2. V4L2_META_FMT_IPU3_PARAMS ('ip3p'), V4L2_META_FMT_IPU3_3A ('ip3s')¶
2.13.2.1. 3A statistics¶
The IPU3 ImgU 3A statistics accelerators collect different statistics over
an input Bayer frame. Those statistics are obtained from the "ipu3-imgu [01] 3a
stat" metadata capture video nodes, using the v4l2_meta_format
interface. They are formatted as described by the ipu3_uapi_stats_3a
structure.
The statistics collected are AWB (Auto-white balance) RGBS (Red, Green, Blue and Saturation measure) cells, AWB filter response, AF (Auto-focus) filter response, and AE (Auto-exposure) histogram.
The struct ipu3_uapi_4a_config
saves all configurable parameters.
struct ipu3_uapi_stats_3a {
struct ipu3_uapi_awb_raw_buffer awb_raw_buffer;
struct ipu3_uapi_ae_raw_buffer_aligned ae_raw_buffer[IPU3_UAPI_MAX_STRIPES];
struct ipu3_uapi_af_raw_buffer af_raw_buffer;
struct ipu3_uapi_awb_fr_raw_buffer awb_fr_raw_buffer;
struct ipu3_uapi_4a_config stats_4a_config;
__u32 ae_join_buffers;
__u8 padding[28];
struct ipu3_uapi_stats_3a_bubble_info_per_stripe stats_3a_bubble_per_stripe;
struct ipu3_uapi_ff_status stats_3a_status;
};
2.13.2.2. Pipeline parameters¶
The pipeline parameters are passed to the "ipu3-imgu [01] parameters" metadata
output video nodes, using the v4l2_meta_format
interface. They are
formatted as described by the ipu3_uapi_params
structure.
Both 3A statistics and pipeline parameters described here are closely tied to the underlying camera sub-system (CSS) APIs. They are usually consumed and produced by dedicated user space libraries that comprise the important tuning tools, thus freeing the developers from being bothered with the low level hardware and algorithm details.
struct ipu3_uapi_params {
/* Flags which of the settings below are to be applied */
struct ipu3_uapi_flags use;
/* Accelerator cluster parameters */
struct ipu3_uapi_acc_param acc_param;
/* ISP vector address space parameters */
struct ipu3_uapi_isp_lin_vmem_params lin_vmem_params;
struct ipu3_uapi_isp_tnr3_vmem_params tnr3_vmem_params;
struct ipu3_uapi_isp_xnr3_vmem_params xnr3_vmem_params;
/* ISP data memory (DMEM) parameters */
struct ipu3_uapi_isp_tnr3_params tnr3_dmem_params;
struct ipu3_uapi_isp_xnr3_params xnr3_dmem_params;
/* Optical black level compensation */
struct ipu3_uapi_obgrid_param obgrid_param;
};
2.13.2.3. Intel IPU3 ImgU uAPI data types¶
-
struct
ipu3_uapi_grid_config
¶ Grid plane config
Definition
struct ipu3_uapi_grid_config {
__u8 width;
__u8 height;
__u16 block_width_log2:3;
__u16 block_height_log2:3;
__u16 height_per_slice:8;
__u16 x_start;
__u16 y_start;
__u16 x_end;
__u16 y_end;
};
Members
width
- Grid horizontal dimensions, in number of grid blocks(cells).
height
- Grid vertical dimensions, in number of grid cells.
block_width_log2
- Log2 of the width of each cell in pixels. for (2^3, 2^4, 2^5, 2^6, 2^7), values [3, 7].
block_height_log2
- Log2 of the height of each cell in pixels. for (2^3, 2^4, 2^5, 2^6, 2^7), values [3, 7].
height_per_slice
- The number of blocks in vertical axis per slice. Default 2.
x_start
- X value of top left corner of Region of Interest(ROI).
y_start
- Y value of top left corner of ROI
x_end
- X value of bottom right corner of ROI
y_end
- Y value of bottom right corner of ROI
Description
Due to the size of total amount of collected data, most statistics create a grid-based output, and the data is then divided into "slices".
-
struct
ipu3_uapi_awb_raw_buffer
¶ AWB raw buffer
Definition
struct ipu3_uapi_awb_raw_buffer {
__u8 meta_data[IPU3_UAPI_AWB_MAX_BUFFER_SIZE] ;
};
Members
meta_data
- buffer to hold auto white balance meta data which is the average values for each color channel.
-
struct
ipu3_uapi_awb_config_s
¶ AWB config
Definition
struct ipu3_uapi_awb_config_s {
__u16 rgbs_thr_gr;
__u16 rgbs_thr_r;
__u16 rgbs_thr_gb;
__u16 rgbs_thr_b;
struct ipu3_uapi_grid_config grid;
};
Members
rgbs_thr_gr
- gr threshold value.
rgbs_thr_r
- Red threshold value.
rgbs_thr_gb
- gb threshold value.
rgbs_thr_b
- Blue threshold value.
grid
ipu3_uapi_grid_config
, the default grid resolution is 16x16 cells.
Description
The threshold is a saturation measure range [0, 8191], 8191 is default. Values over threshold may be optionally rejected for averaging.
-
struct
ipu3_uapi_awb_config
¶ AWB config wrapper
Definition
struct ipu3_uapi_awb_config {
struct ipu3_uapi_awb_config_s config ;
};
Members
config
- config for auto white balance as defined by
ipu3_uapi_awb_config_s
-
struct
ipu3_uapi_ae_raw_buffer
¶ AE global weighted histogram
Definition
struct ipu3_uapi_ae_raw_buffer {
__u32 vals[IPU3_UAPI_AE_BINS * IPU3_UAPI_AE_COLORS];
};
Members
vals
- Sum of IPU3_UAPI_AE_COLORS in cell
Description
Each histogram contains IPU3_UAPI_AE_BINS bins. Each bin has 24 bit unsigned for counting the number of the pixel.
-
struct
ipu3_uapi_ae_raw_buffer_aligned
¶ AE raw buffer
Definition
struct ipu3_uapi_ae_raw_buffer_aligned {
struct ipu3_uapi_ae_raw_buffer buff ;
};
Members
buff
ipu3_uapi_ae_raw_buffer
to hold full frame meta data.
-
struct
ipu3_uapi_ae_grid_config
¶ AE weight grid
Definition
struct ipu3_uapi_ae_grid_config {
__u8 width;
__u8 height;
__u8 block_width_log2:4;
__u8 block_height_log2:4;
__u8 reserved0:5;
__u8 ae_en:1;
__u8 rst_hist_array:1;
__u8 done_rst_hist_array:1;
__u16 x_start;
__u16 y_start;
__u16 x_end;
__u16 y_end;
};
Members
width
- Grid horizontal dimensions. Value: [16, 32], default 16.
height
- Grid vertical dimensions. Value: [16, 24], default 16.
block_width_log2
- Log2 of the width of the grid cell, value: [3, 7].
block_height_log2
- Log2 of the height of the grid cell, value: [3, 7]. default is 3 (cell size 8x8), 4 cell per grid.
reserved0
- reserved
ae_en
- 0: does not write to
ipu3_uapi_ae_raw_buffer_aligned
array, 1: write normally. rst_hist_array
- write 1 to trigger histogram array reset.
done_rst_hist_array
- flag for histogram array reset done.
x_start
- X value of top left corner of ROI, default 0.
y_start
- Y value of top left corner of ROI, default 0.
x_end
- X value of bottom right corner of ROI
y_end
- Y value of bottom right corner of ROI
Description
The AE block accumulates 4 global weighted histograms(R, G, B, Y) over
a defined ROI within the frame. The contribution of each pixel into the
histogram, defined by ipu3_uapi_ae_weight_elem
LUT, is indexed by a grid.
-
struct
ipu3_uapi_ae_weight_elem
¶ AE weights LUT
Definition
struct ipu3_uapi_ae_weight_elem {
__u32 cell0:4;
__u32 cell1:4;
__u32 cell2:4;
__u32 cell3:4;
__u32 cell4:4;
__u32 cell5:4;
__u32 cell6:4;
__u32 cell7:4;
};
Members
cell0
- weighted histogram grid value.
cell1
- weighted histogram grid value.
cell2
- weighted histogram grid value.
cell3
- weighted histogram grid value.
cell4
- weighted histogram grid value.
cell5
- weighted histogram grid value.
cell6
- weighted histogram grid value.
cell7
- weighted histogram grid value.
Description
Use weighted grid value to give a different contribution factor to each cell. Precision u4, range [0, 15].
-
struct
ipu3_uapi_ae_ccm
¶ AE coefficients for WB and CCM
Definition
struct ipu3_uapi_ae_ccm {
__u16 gain_gr;
__u16 gain_r;
__u16 gain_b;
__u16 gain_gb;
__s16 mat[16];
};
Members
gain_gr
- WB gain factor for the gr channels. Default 256.
gain_r
- WB gain factor for the r channel. Default 256.
gain_b
- WB gain factor for the b channel. Default 256.
gain_gb
- WB gain factor for the gb channels. Default 256.
mat
- 4x4 matrix that transforms Bayer quad output from WB to RGB+Y.
Description
- Default:
- 128, 0, 0, 0, 0, 128, 0, 0, 0, 0, 128, 0, 0, 0, 0, 128,
As part of the raw frame pre-process stage, the WB and color conversion need to be applied to expose the impact of these gain operations.
-
struct
ipu3_uapi_ae_config
¶ AE config
Definition
struct ipu3_uapi_ae_config {
struct ipu3_uapi_ae_grid_config grid_cfg ;
struct ipu3_uapi_ae_weight_elem weights[ IPU3_UAPI_AE_WEIGHTS] ;
struct ipu3_uapi_ae_ccm ae_ccm ;
};
Members
grid_cfg
- config for auto exposure statistics grid. See struct
ipu3_uapi_ae_grid_config
weights
IPU3_UAPI_AE_WEIGHTS
is based on 32x24 blocks in the grid. Each grid cell has a corresponding value in weights LUT called grid value, global histogram is updated based on grid value and pixel value.ae_ccm
- Color convert matrix pre-processing block.
Description
Calculate AE grid from image resolution, resample ae weights.
-
struct
ipu3_uapi_af_filter_config
¶ AF 2D filter for contrast measurements
Definition
struct ipu3_uapi_af_filter_config {
struct {
__u8 a1;
__u8 a2;
__u8 a3;
__u8 a4;
} y1_coeff_0;
struct {
__u8 a5;
__u8 a6;
__u8 a7;
__u8 a8;
} y1_coeff_1;
struct {
__u8 a9;
__u8 a10;
__u8 a11;
__u8 a12;
} y1_coeff_2;
__u32 y1_sign_vec;
struct {
__u8 a1;
__u8 a2;
__u8 a3;
__u8 a4;
} y2_coeff_0;
struct {
__u8 a5;
__u8 a6;
__u8 a7;
__u8 a8;
} y2_coeff_1;
struct {
__u8 a9;
__u8 a10;
__u8 a11;
__u8 a12;
} y2_coeff_2;
__u32 y2_sign_vec;
struct {
__u8 y_gen_rate_gr;
__u8 y_gen_rate_r;
__u8 y_gen_rate_b;
__u8 y_gen_rate_gb;
} y_calc;
struct {
__u32 reserved0:8;
__u32 y1_nf:4;
__u32 reserved1:4;
__u32 y2_nf:4;
__u32 reserved2:12;
} nf;
};
Members
y1_coeff_0
- filter Y1, structure: 3x11, support both symmetry and anti-symmetry type. A12 is center, A1-A11 are neighbours. for analyzing low frequency content, used to calculate sum of gradients in x direction.
y1_coeff_0.a1
- filter1 coefficients A1, u8, default 0.
y1_coeff_0.a2
- filter1 coefficients A2, u8, default 0.
y1_coeff_0.a3
- filter1 coefficients A3, u8, default 0.
y1_coeff_0.a4
- filter1 coefficients A4, u8, default 0.
y1_coeff_1
- Struct
y1_coeff_1.a5
- filter1 coefficients A5, u8, default 0.
y1_coeff_1.a6
- filter1 coefficients A6, u8, default 0.
y1_coeff_1.a7
- filter1 coefficients A7, u8, default 0.
y1_coeff_1.a8
- filter1 coefficients A8, u8, default 0.
y1_coeff_2
- Struct
y1_coeff_2.a9
- filter1 coefficients A9, u8, default 0.
y1_coeff_2.a10
- filter1 coefficients A10, u8, default 0.
y1_coeff_2.a11
- filter1 coefficients A11, u8, default 0.
y1_coeff_2.a12
- filter1 coefficients A12, u8, default 128.
y1_sign_vec
- Each bit corresponds to one coefficient sign bit, 0: positive, 1: negative, default 0.
y2_coeff_0
- Y2, same structure as Y1. For analyzing high frequency content.
y2_coeff_0.a1
- filter2 coefficients A1, u8, default 0.
y2_coeff_0.a2
- filter2 coefficients A2, u8, default 0.
y2_coeff_0.a3
- filter2 coefficients A3, u8, default 0.
y2_coeff_0.a4
- filter2 coefficients A4, u8, default 0.
y2_coeff_1
- Struct
y2_coeff_1.a5
- filter2 coefficients A5, u8, default 0.
y2_coeff_1.a6
- filter2 coefficients A6, u8, default 0.
y2_coeff_1.a7
- filter2 coefficients A7, u8, default 0.
y2_coeff_1.a8
- filter2 coefficients A8, u8, default 0.
y2_coeff_2
- Struct
y2_coeff_2.a9
- filter1 coefficients A9, u8, default 0.
y2_coeff_2.a10
- filter1 coefficients A10, u8, default 0.
y2_coeff_2.a11
- filter1 coefficients A11, u8, default 0.
y2_coeff_2.a12
- filter1 coefficients A12, u8, default 128.
y2_sign_vec
- Each bit corresponds to one coefficient sign bit, 0: positive, 1: negative, default 0.
y_calc
- Pre-processing that converts Bayer quad to RGB+Y values to be used for building histogram. Range [0, 32], default 8. Rule: y_gen_rate_gr + y_gen_rate_r + y_gen_rate_b + y_gen_rate_gb = 32 A single Y is calculated based on sum of Gr/R/B/Gb based on their contribution ratio.
y_calc.y_gen_rate_gr
- Contribution ratio Gr for Y
y_calc.y_gen_rate_r
- Contribution ratio R for Y
y_calc.y_gen_rate_b
- Contribution ratio B for Y
y_calc.y_gen_rate_gb
- Contribution ratio Gb for Y
nf
- The shift right value that should be applied during the Y1/Y2 filter to make sure the total memory needed is 2 bytes per grid cell.
nf.reserved0
- reserved
nf.y1_nf
- Normalization factor for the convolution coeffs of y1, should be log2 of the sum of the abs values of the filter coeffs, default 7 (2^7 = 128).
nf.reserved1
- reserved
nf.y2_nf
- Normalization factor for y2, should be log2 of the sum of the abs values of the filter coeffs.
nf.reserved2
- reserved
-
struct
ipu3_uapi_af_raw_buffer
¶ AF meta data
Definition
struct ipu3_uapi_af_raw_buffer {
__u8 y_table[IPU3_UAPI_AF_Y_TABLE_MAX_SIZE] ;
};
Members
y_table
- Each color component will be convolved separately with filter1 and filter2 and the result will be summed out and averaged for each cell.
-
struct
ipu3_uapi_af_config_s
¶ AF config
Definition
struct ipu3_uapi_af_config_s {
struct ipu3_uapi_af_filter_config filter_config ;
__u8 padding[4];
struct ipu3_uapi_grid_config grid_cfg ;
};
Members
filter_config
- AF uses Y1 and Y2 filters as configured in
ipu3_uapi_af_filter_config
padding
- paddings
grid_cfg
- See
ipu3_uapi_grid_config
, default resolution 16x16. Use large grid size for large image and vice versa.
-
struct
ipu3_uapi_awb_fr_raw_buffer
¶ AWB filter response meta data
Definition
struct ipu3_uapi_awb_fr_raw_buffer {
__u8 meta_data[IPU3_UAPI_AWB_FR_BAYER_TABLE_MAX_SIZE] ;
};
Members
meta_data
- Statistics output on the grid after convolving with 1D filter.
-
struct
ipu3_uapi_awb_fr_config_s
¶ AWB filter response config
Definition
struct ipu3_uapi_awb_fr_config_s {
struct ipu3_uapi_grid_config grid_cfg;
__u8 bayer_coeff[6];
__u16 reserved1;
__u32 bayer_sign;
__u8 bayer_nf;
__u8 reserved2[7];
};
Members
grid_cfg
- grid config, default 16x16.
bayer_coeff
- 1D Filter 1x11 center symmetry/anti-symmetry. coefficients defaults { 0, 0, 0, 0, 0, 128 }. Applied on whole image for each Bayer channel separately by a weighted sum of its 11x1 neighbors.
reserved1
- reserved
bayer_sign
- sign of filter coefficients, default 0.
bayer_nf
- normalization factor for the convolution coeffs, to make sure total memory needed is within pre-determined range. NF should be the log2 of the sum of the abs values of the filter coeffs, range [7, 14], default 7.
reserved2
- reserved
-
struct
ipu3_uapi_4a_config
¶ 4A config
Definition
struct ipu3_uapi_4a_config {
struct ipu3_uapi_awb_config_s awb_config ;
struct ipu3_uapi_ae_grid_config ae_grd_config;
__u8 padding[20];
struct ipu3_uapi_af_config_s af_config;
struct ipu3_uapi_awb_fr_config_s awb_fr_config;
};
Members
awb_config
ipu3_uapi_awb_config_s
, default resolution 16x16ae_grd_config
- auto exposure statistics
ipu3_uapi_ae_grid_config
padding
- paddings
af_config
- auto focus config
ipu3_uapi_af_config_s
awb_fr_config
ipu3_uapi_awb_fr_config_s
, default resolution 16x16
-
struct
ipu3_uapi_bubble_info
¶ Bubble info for host side debugging
Definition
struct ipu3_uapi_bubble_info {
__u32 num_of_stripes ;
__u8 padding[28];
__u32 num_sets;
__u8 padding1[28];
__u32 size_of_set;
__u8 padding2[28];
__u32 bubble_size;
__u8 padding3[28];
};
Members
num_of_stripes
- A single frame is divided into several parts called stripes due to limitation on line buffer memory. The separation between the stripes is vertical. Each such stripe is processed as a single frame by the ISP pipe.
padding
- padding bytes.
num_sets
- number of sets.
padding1
- padding bytes.
size_of_set
- set size.
padding2
- padding bytes.
bubble_size
- is the amount of padding in the bubble expressed in "sets".
padding3
- padding bytes.
-
struct
ipu3_uapi_ff_status
¶ Enable bits for each 3A fixed function
Definition
struct ipu3_uapi_ff_status {
__u32 awb_en ;
__u8 padding[28];
__u32 ae_en;
__u8 padding1[28];
__u32 af_en;
__u8 padding2[28];
__u32 awb_fr_en;
__u8 padding3[28];
};
Members
awb_en
- auto white balance enable
padding
- padding config
ae_en
- auto exposure enable
padding1
- padding config
af_en
- auto focus enable
padding2
- padding config
awb_fr_en
- awb filter response enable bit
padding3
- padding config
-
struct
ipu3_uapi_stats_3a
¶ 3A statistics
Definition
struct ipu3_uapi_stats_3a {
struct ipu3_uapi_awb_raw_buffer awb_raw_buffer;
struct ipu3_uapi_ae_raw_buffer_aligned ae_raw_buffer[IPU3_UAPI_MAX_STRIPES];
struct ipu3_uapi_af_raw_buffer af_raw_buffer;
struct ipu3_uapi_awb_fr_raw_buffer awb_fr_raw_buffer;
struct ipu3_uapi_4a_config stats_4a_config;
__u32 ae_join_buffers;
__u8 padding[28];
struct ipu3_uapi_stats_3a_bubble_info_per_stripe stats_3a_bubble_per_stripe;
struct ipu3_uapi_ff_status stats_3a_status;
};
Members
awb_raw_buffer
- auto white balance meta data
ipu3_uapi_awb_raw_buffer
ae_raw_buffer
- auto exposure raw data
ipu3_uapi_ae_raw_buffer_aligned
af_raw_buffer
ipu3_uapi_af_raw_buffer
for auto focus meta dataawb_fr_raw_buffer
- value as specified by
ipu3_uapi_awb_fr_raw_buffer
stats_4a_config
- 4a statistics config as defined by
ipu3_uapi_4a_config
. ae_join_buffers
- 1 to use ae_raw_buffer.
padding
- padding config
stats_3a_bubble_per_stripe
- a
ipu3_uapi_stats_3a_bubble_info_per_stripe
stats_3a_status
- 3a statistics status set in
ipu3_uapi_ff_status
-
struct
ipu3_uapi_bnr_static_config_wb_gains_config
¶ White balance gains
Definition
struct ipu3_uapi_bnr_static_config_wb_gains_config {
__u16 gr;
__u16 r;
__u16 b;
__u16 gb;
};
Members
gr
- white balance gain for Gr channel.
r
- white balance gain for R channel.
b
- white balance gain for B channel.
gb
- white balance gain for Gb channel.
Description
Precision u3.13, range [0, 8). White balance correction is done by applying a multiplicative gain to each color channels prior to BNR.
-
struct
ipu3_uapi_bnr_static_config_wb_gains_thr_config
¶ Threshold config
Definition
struct ipu3_uapi_bnr_static_config_wb_gains_thr_config {
__u8 gr;
__u8 r;
__u8 b;
__u8 gb;
};
Members
gr
- white balance threshold gain for Gr channel.
r
- white balance threshold gain for R channel.
b
- white balance threshold gain for B channel.
gb
- white balance threshold gain for Gb channel.
Description
Defines the threshold that specifies how different a defect pixel can be from its neighbors.(used by dynamic defect pixel correction sub block) Precision u4.4 range [0, 8].
-
struct
ipu3_uapi_bnr_static_config_thr_coeffs_config
¶ Noise model coefficients that controls noise threshold
Definition
struct ipu3_uapi_bnr_static_config_thr_coeffs_config {
__u32 cf:13;
__u32 reserved0:3;
__u32 cg:5;
__u32 ci:5;
__u32 reserved1:1;
__u32 r_nf:5;
};
Members
cf
- Free coefficient for threshold calculation, range [0, 8191], default 0.
reserved0
- reserved
cg
- Gain coefficient for threshold calculation, [0, 31], default 8.
ci
- Intensity coefficient for threshold calculation. range [0, 0x1f] default 6. format: u3.2 (3 most significant bits represent whole number, 2 least significant bits represent the fractional part with each count representing 0.25) e.g. 6 in binary format is 00110, that translates to 1.5
reserved1
- reserved
r_nf
- Normalization shift value for r^2 calculation, range [12, 20] where r is a radius of pixel [row, col] from centor of sensor. default 14.
Description
Threshold used to distinguish between noise and details.
-
struct
ipu3_uapi_bnr_static_config_thr_ctrl_shd_config
¶ Shading config
Definition
struct ipu3_uapi_bnr_static_config_thr_ctrl_shd_config {
__u8 gr;
__u8 r;
__u8 b;
__u8 gb;
};
Members
gr
- Coefficient defines lens shading gain approximation for gr channel
r
- Coefficient defines lens shading gain approximation for r channel
b
- Coefficient defines lens shading gain approximation for b channel
gb
- Coefficient defines lens shading gain approximation for gb channel
Description
Parameters for noise model (NM) adaptation of BNR due to shading correction. All above have precision of u3.3, default to 0.
-
struct
ipu3_uapi_bnr_static_config_opt_center_config
¶ Optical center config
Definition
struct ipu3_uapi_bnr_static_config_opt_center_config {
__s32 x_reset:13;
__u32 reserved0:3;
__s32 y_reset:13;
__u32 reserved2:3;
};
Members
x_reset
- Reset value of X (col start - X center). Precision s12.0.
reserved0
- reserved
y_reset
- Reset value of Y (row start - Y center). Precision s12.0.
reserved2
- reserved
Description
Distance from corner to optical center for NM adaptation due to shading correction (should be calculated based on shading tables)
-
struct
ipu3_uapi_bnr_static_config_lut_config
¶ BNR square root lookup table
Definition
struct ipu3_uapi_bnr_static_config_lut_config {
__u8 values[IPU3_UAPI_BNR_LUT_SIZE];
};
Members
values
- pre-calculated values of square root function.
Description
LUT implementation of square root operation.
-
struct
ipu3_uapi_bnr_static_config_bp_ctrl_config
¶ Detect bad pixels (bp)
Definition
struct ipu3_uapi_bnr_static_config_bp_ctrl_config {
__u32 bp_thr_gain:5;
__u32 reserved0:2;
__u32 defect_mode:1;
__u32 bp_gain:6;
__u32 reserved1:18;
__u32 w0_coeff:4;
__u32 reserved2:4;
__u32 w1_coeff:4;
__u32 reserved3:20;
};
Members
bp_thr_gain
- Defines the threshold that specifies how different a defect pixel can be from its neighbors. Threshold is dependent on de-noise threshold calculated by algorithm. Range [4, 31], default 4.
reserved0
- reserved
defect_mode
- Mode of addressed defect pixels, 0 - single defect pixel is expected, 1 - 2 adjacent defect pixels are expected, default 1.
bp_gain
- Defines how 2nd derivation that passes through a defect pixel is different from 2nd derivations that pass through neighbor pixels. u4.2, range [0, 256], default 8.
reserved1
- reserved
w0_coeff
- Blending coefficient of defect pixel correction. Precision u4, range [0, 8], default 8.
reserved2
- reserved
w1_coeff
- Enable influence of incorrect defect pixel correction to be avoided. Precision u4, range [1, 8], default 8.
reserved3
- reserved
-
struct
ipu3_uapi_bnr_static_config_dn_detect_ctrl_config
¶ Denoising config
Definition
struct ipu3_uapi_bnr_static_config_dn_detect_ctrl_config {
__u32 alpha:4;
__u32 beta:4;
__u32 gamma:4;
__u32 reserved0:4;
__u32 max_inf:4;
__u32 reserved1:7;
__u32 gd_enable:1;
__u32 bpc_enable:1;
__u32 bnr_enable:1;
__u32 ff_enable:1;
__u32 reserved2:1;
};
Members
alpha
- Weight of central element of smoothing filter.
beta
- Weight of peripheral elements of smoothing filter, default 4.
gamma
- Weight of diagonal elements of smoothing filter, default 4.
reserved0
- reserved
max_inf
- Maximum increase of peripheral or diagonal element influence relative to the pre-defined value range: [0x5, 0xa]
reserved1
- reserved
gd_enable
- Green disparity enable control, 0 - disable, 1 - enable.
bpc_enable
- Bad pixel correction enable control, 0 - disable, 1 - enable.
bnr_enable
- Bayer noise removal enable control, 0 - disable, 1 - enable.
ff_enable
- Fixed function enable, 0 - disable, 1 - enable.
reserved2
- reserved
Description
- beta and gamma parameter define the strength of the noise removal filter.
- All above has precision u0.4, range [0, 0xf] format: u0.4 (no / zero bits represent whole number, 4 bits represent the fractional part with each count representing 0.0625) e.g. 0xf translates to 0.0625x15 = 0.9375
-
struct
ipu3_uapi_bnr_static_config_opt_center_sqr_config
¶ BNR optical square
Definition
struct ipu3_uapi_bnr_static_config_opt_center_sqr_config {
__u32 x_sqr_reset;
__u32 y_sqr_reset;
};
Members
x_sqr_reset
- Reset value of X^2.
y_sqr_reset
- Reset value of Y^2.
Description
Please note:
- X and Y ref to
ipu3_uapi_bnr_static_config_opt_center_config
- Both structs are used in threshold formula to calculate r^2, where r is a radius of pixel [row, col] from centor of sensor.
-
struct
ipu3_uapi_bnr_static_config
¶ BNR static config
Definition
struct ipu3_uapi_bnr_static_config {
struct ipu3_uapi_bnr_static_config_wb_gains_config wb_gains;
struct ipu3_uapi_bnr_static_config_wb_gains_thr_config wb_gains_thr;
struct ipu3_uapi_bnr_static_config_thr_coeffs_config thr_coeffs;
struct ipu3_uapi_bnr_static_config_thr_ctrl_shd_config thr_ctrl_shd;
struct ipu3_uapi_bnr_static_config_opt_center_config opt_center;
struct ipu3_uapi_bnr_static_config_lut_config lut;
struct ipu3_uapi_bnr_static_config_bp_ctrl_config bp_ctrl;
struct ipu3_uapi_bnr_static_config_dn_detect_ctrl_config dn_detect_ctrl;
__u32 column_size;
struct ipu3_uapi_bnr_static_config_opt_center_sqr_config opt_center_sqr;
};
Members
wb_gains
- white balance gains
ipu3_uapi_bnr_static_config_wb_gains_config
wb_gains_thr
- white balance gains threshold as defined by
ipu3_uapi_bnr_static_config_wb_gains_thr_config
thr_coeffs
- coefficients of threshold
ipu3_uapi_bnr_static_config_thr_coeffs_config
thr_ctrl_shd
- control of shading threshold
ipu3_uapi_bnr_static_config_thr_ctrl_shd_config
opt_center
- optical center
ipu3_uapi_bnr_static_config_opt_center_config
lut
- lookup table
ipu3_uapi_bnr_static_config_lut_config
bp_ctrl
- detect and remove bad pixels as defined in struct
ipu3_uapi_bnr_static_config_bp_ctrl_config
dn_detect_ctrl
- detect and remove noise.
ipu3_uapi_bnr_static_config_dn_detect_ctrl_config
column_size
- The number of pixels in column.
opt_center_sqr
- Reset value of r^2 to optical center, see
ipu3_uapi_bnr_static_config_opt_center_sqr_config
.
Description
Above parameters and opt_center_sqr are used for white balance and shading.
-
struct
ipu3_uapi_bnr_static_config_green_disparity
¶ Correct green disparity
Definition
struct ipu3_uapi_bnr_static_config_green_disparity {
__u32 gd_red:6;
__u32 reserved0:2;
__u32 gd_green:6;
__u32 reserved1:2;
__u32 gd_blue:6;
__u32 reserved2:10;
__u32 gd_black:14;
__u32 reserved3:2;
__u32 gd_shading:7;
__u32 reserved4:1;
__u32 gd_support:2;
__u32 reserved5:1;
__u32 gd_clip:1;
__u32 gd_central_weight:4;
};
Members
gd_red
- Shading gain coeff for gr disparity level in bright red region. Precision u0.6, default 4(0.0625).
reserved0
- reserved
gd_green
- Shading gain coeff for gr disparity level in bright green region. Precision u0.6, default 4(0.0625).
reserved1
- reserved
gd_blue
- Shading gain coeff for gr disparity level in bright blue region. Precision u0.6, default 4(0.0625).
reserved2
- reserved
gd_black
- Maximal green disparity level in dark region (stronger disparity assumed to be image detail). Precision u14, default 80.
reserved3
- reserved
gd_shading
- Change maximal green disparity level according to square distance from image center.
reserved4
- reserved
gd_support
- Lower bound for the number of second green color pixels in current pixel neighborhood with less than threshold difference from it.
reserved5
- reserved
gd_clip
- Turn green disparity clip on/off, [0, 1], default 1.
gd_central_weight
- Central pixel weight in 9 pixels weighted sum.
Description
The shading gain coeff of red, green, blue and black are used to calculate threshold given a pixel's color value and its coordinates in the image.
-
struct
ipu3_uapi_dm_config
¶ De-mosaic parameters
Definition
struct ipu3_uapi_dm_config {
__u32 dm_en:1;
__u32 ch_ar_en:1;
__u32 fcc_en:1;
__u32 reserved0:13;
__u32 frame_width:16;
__u32 gamma_sc:5;
__u32 reserved1:3;
__u32 lc_ctrl:5;
__u32 reserved2:3;
__u32 cr_param1:5;
__u32 reserved3:3;
__u32 cr_param2:5;
__u32 reserved4:3;
__u32 coring_param:5;
__u32 reserved5:27;
};
Members
dm_en
- de-mosaic enable.
ch_ar_en
- Checker artifacts removal enable flag. Default 0.
fcc_en
- False color correction (FCC) enable flag. Default 0.
reserved0
- reserved
frame_width
- do not care
gamma_sc
- Sharpening coefficient (coefficient of 2-d derivation of complementary color in Hamilton-Adams interpolation). u5, range [0, 31], default 8.
reserved1
- reserved
lc_ctrl
- Parameter that controls weights of Chroma Homogeneity metric in calculation of final homogeneity metric. u5, range [0, 31], default 7.
reserved2
- reserved
cr_param1
- First parameter that defines Checker artifact removal feature gain. Precision u5, range [0, 31], default 8.
reserved3
- reserved
cr_param2
- Second parameter that defines Checker artifact removal feature gain. Precision u5, range [0, 31], default 8.
reserved4
- reserved
coring_param
- Defines power of false color correction operation. low for preserving edge colors, high for preserving gray edge artifacts. Precision u1.4, range [0, 1.9375], default 4 (0.25).
reserved5
- reserved
Description
The demosaic fixed function block is responsible to covert Bayer(mosaiced) images into color images based on demosaicing algorithm.
-
struct
ipu3_uapi_ccm_mat_config
¶ Color correction matrix
Definition
struct ipu3_uapi_ccm_mat_config {
__s16 coeff_m11;
__s16 coeff_m12;
__s16 coeff_m13;
__s16 coeff_o_r;
__s16 coeff_m21;
__s16 coeff_m22;
__s16 coeff_m23;
__s16 coeff_o_g;
__s16 coeff_m31;
__s16 coeff_m32;
__s16 coeff_m33;
__s16 coeff_o_b;
};
Members
coeff_m11
- CCM 3x3 coefficient, range [-65536, 65535]
coeff_m12
- CCM 3x3 coefficient, range [-8192, 8191]
coeff_m13
- CCM 3x3 coefficient, range [-32768, 32767]
coeff_o_r
- Bias 3x1 coefficient, range [-8191, 8181]
coeff_m21
- CCM 3x3 coefficient, range [-32767, 32767]
coeff_m22
- CCM 3x3 coefficient, range [-8192, 8191]
coeff_m23
- CCM 3x3 coefficient, range [-32768, 32767]
coeff_o_g
- Bias 3x1 coefficient, range [-8191, 8181]
coeff_m31
- CCM 3x3 coefficient, range [-32768, 32767]
coeff_m32
- CCM 3x3 coefficient, range [-8192, 8191]
coeff_m33
- CCM 3x3 coefficient, range [-32768, 32767]
coeff_o_b
- Bias 3x1 coefficient, range [-8191, 8181]
Description
Transform sensor specific color space to standard sRGB by applying 3x3 matrix and adding a bias vector O. The transformation is basically a rotation and translation in the 3-dimensional color spaces. Here are the defaults:
9775, -2671, 1087, 0 -1071, 8303, 815, 0 -23, -7887, 16103, 0
-
struct
ipu3_uapi_gamma_corr_ctrl
¶ Gamma correction
Definition
struct ipu3_uapi_gamma_corr_ctrl {
__u32 enable:1;
__u32 reserved:31;
};
Members
enable
- gamma correction enable.
reserved
- reserved
-
struct
ipu3_uapi_gamma_corr_lut
¶ Per-pixel tone mapping implemented as LUT.
Definition
struct ipu3_uapi_gamma_corr_lut {
__u16 lut[IPU3_UAPI_GAMMA_CORR_LUT_ENTRIES];
};
Members
lut
- 256 tabulated values of the gamma function. LUT[1].. LUT[256] format u13.0, range [0, 8191].
Description
The tone mapping operation is done by a Piece wise linear graph that is implemented as a lookup table(LUT). The pixel component input intensity is the X-axis of the graph which is the table entry.
-
struct
ipu3_uapi_gamma_config
¶ Gamma config
Definition
struct ipu3_uapi_gamma_config {
struct ipu3_uapi_gamma_corr_ctrl gc_ctrl ;
struct ipu3_uapi_gamma_corr_lut gc_lut ;
};
Members
gc_ctrl
- control of gamma correction
ipu3_uapi_gamma_corr_ctrl
gc_lut
- lookup table of gamma correction
ipu3_uapi_gamma_corr_lut
-
struct
ipu3_uapi_csc_mat_config
¶ Color space conversion matrix config
Definition
struct ipu3_uapi_csc_mat_config {
__s16 coeff_c11;
__s16 coeff_c12;
__s16 coeff_c13;
__s16 coeff_b1;
__s16 coeff_c21;
__s16 coeff_c22;
__s16 coeff_c23;
__s16 coeff_b2;
__s16 coeff_c31;
__s16 coeff_c32;
__s16 coeff_c33;
__s16 coeff_b3;
};
Members
coeff_c11
- Conversion matrix value, format s0.14, range [-16384, 16383].
coeff_c12
- Conversion matrix value, format s0.14, range [-8192, 8191].
coeff_c13
- Conversion matrix value, format s0.14, range [-16384, 16383].
coeff_b1
- Bias 3x1 coefficient, s13.0 range [-8192, 8191].
coeff_c21
- Conversion matrix value, format s0.14, range [-16384, 16383].
coeff_c22
- Conversion matrix value, format s0.14, range [-8192, 8191].
coeff_c23
- Conversion matrix value, format s0.14, range [-16384, 16383].
coeff_b2
- Bias 3x1 coefficient, s13.0 range [-8192, 8191].
coeff_c31
- Conversion matrix value, format s0.14, range [-16384, 16383].
coeff_c32
- Conversion matrix value, format s0.14, range [-8192, 8191].
coeff_c33
- Conversion matrix value, format s0.14, range [-16384, 16383].
coeff_b3
- Bias 3x1 coefficient, s13.0 range [-8192, 8191].
Description
To transform each pixel from RGB to YUV (Y - brightness/luminance, UV -chroma) by applying the pixel's values by a 3x3 matrix and adding an optional bias 3x1 vector. Here are the default values for the matrix:
4898, 9617, 1867, 0, -2410, -4732, 7143, 0, 10076, -8437, -1638, 0,
(i.e. for real number 0.299, 0.299 * 2^14 becomes 4898.)
-
struct
ipu3_uapi_cds_params
¶ Chroma down-scaling
Definition
struct ipu3_uapi_cds_params {
__u32 ds_c00:2;
__u32 ds_c01:2;
__u32 ds_c02:2;
__u32 ds_c03:2;
__u32 ds_c10:2;
__u32 ds_c11:2;
__u32 ds_c12:2;
__u32 ds_c13:2;
__u32 ds_nf:5;
__u32 reserved0:3;
__u32 csc_en:1;
__u32 uv_bin_output:1;
__u32 reserved1:6;
};
Members
ds_c00
- range [0, 3]
ds_c01
- range [0, 3]
ds_c02
- range [0, 3]
ds_c03
- range [0, 3]
ds_c10
- range [0, 3]
ds_c11
- range [0, 3]
ds_c12
- range [0, 3]
ds_c13
- range [0, 3]
ds_nf
- Normalization factor for Chroma output downscaling filter, range 0,4, default 2.
reserved0
- reserved
csc_en
- Color space conversion enable
uv_bin_output
- 0: output YUV 4.2.0, 1: output YUV 4.2.2(default).
reserved1
- reserved
Description
- In case user does not provide, above 4x2 filter will use following defaults:
- 1, 3, 3, 1, 1, 3, 3, 1,
-
struct
ipu3_uapi_shd_grid_config
¶ Bayer shading(darkening) correction
Definition
struct ipu3_uapi_shd_grid_config {
__u8 width;
__u8 height;
__u8 block_width_log2:3;
__u8 reserved0:1;
__u8 block_height_log2:3;
__u8 reserved1:1;
__u8 grid_height_per_slice;
__s16 x_start;
__s16 y_start;
};
Members
width
- Grid horizontal dimensions, u8, [8, 128], default 73
height
- Grid vertical dimensions, u8, [8, 128], default 56
block_width_log2
- Log2 of the width of the grid cell in pixel count u4, [0, 15], default value 5.
reserved0
- reserved
block_height_log2
- Log2 of the height of the grid cell in pixel count u4, [0, 15], default value 6.
reserved1
- reserved
grid_height_per_slice
- SHD_MAX_CELLS_PER_SET/width. (with SHD_MAX_CELLS_PER_SET = 146).
x_start
- X value of top left corner of sensor relative to ROI s13, [-4096, 0], default 0, only negative values.
y_start
- Y value of top left corner of sensor relative to ROI s13, [-4096, 0], default 0, only negative values.
-
struct
ipu3_uapi_shd_general_config
¶ Shading general config
Definition
struct ipu3_uapi_shd_general_config {
__u32 init_set_vrt_offst_ul:8;
__u32 shd_enable:1;
__u32 gain_factor:2;
__u32 reserved:21;
};
Members
init_set_vrt_offst_ul
- set vertical offset, y_start >> block_height_log2 % grid_height_per_slice.
shd_enable
- shading enable.
gain_factor
- Gain factor. Shift calculated anti shading value. Precision u2. 0x0 - gain factor [1, 5], means no shift interpolated value. 0x1 - gain factor [1, 9], means shift interpolated by 1. 0x2 - gain factor [1, 17], means shift interpolated by 2.
reserved
- reserved
Description
Correction is performed by multiplying a gain factor for each of the 4 Bayer channels as a function of the pixel location in the sensor.
-
struct
ipu3_uapi_shd_black_level_config
¶ Black level correction
Definition
struct ipu3_uapi_shd_black_level_config {
__s16 bl_r;
__s16 bl_gr;
__s16 bl_gb;
__s16 bl_b;
};
Members
bl_r
- Bios values for green red. s11 range [-2048, 2047].
bl_gr
- Bios values for green blue. s11 range [-2048, 2047].
bl_gb
- Bios values for red. s11 range [-2048, 2047].
bl_b
- Bios values for blue. s11 range [-2048, 2047].
-
struct
ipu3_uapi_shd_config_static
¶ Shading config static
Definition
struct ipu3_uapi_shd_config_static {
struct ipu3_uapi_shd_grid_config grid;
struct ipu3_uapi_shd_general_config general;
struct ipu3_uapi_shd_black_level_config black_level;
};
Members
grid
- shading grid config
ipu3_uapi_shd_grid_config
general
- shading general config
ipu3_uapi_shd_general_config
black_level
- black level config for shading correction as defined by
ipu3_uapi_shd_black_level_config
-
struct
ipu3_uapi_shd_lut
¶ Shading gain factor lookup table.
Definition
struct ipu3_uapi_shd_lut {
struct {
struct {
__u16 r;
__u16 gr;
} r_and_gr[IPU3_UAPI_SHD_MAX_CELLS_PER_SET];
__u8 reserved1[24];
struct {
__u16 gb;
__u16 b;
} gb_and_b[IPU3_UAPI_SHD_MAX_CELLS_PER_SET];
__u8 reserved2[24];
} sets[IPU3_UAPI_SHD_MAX_CFG_SETS];
};
Members
sets
- array
sets.r_and_gr
- Red and GreenR Lookup table.
sets.r_and_gr.r
- Red shading factor.
sets.r_and_gr.gr
- GreenR shading factor.
sets.reserved1
- reserved
sets.gb_and_b
- GreenB and Blue Lookup table.
sets.gb_and_b.gb
- GreenB shading factor.
sets.gb_and_b.b
- Blue shading factor.
sets.reserved2
- reserved
Description
Map to shading correction LUT register set.
-
struct
ipu3_uapi_shd_config
¶ Shading config
Definition
struct ipu3_uapi_shd_config {
struct ipu3_uapi_shd_config_static shd ;
struct ipu3_uapi_shd_lut shd_lut ;
};
Members
shd
- shading static config, see
ipu3_uapi_shd_config_static
shd_lut
- shading lookup table
ipu3_uapi_shd_lut
-
struct
ipu3_uapi_iefd_cux2
¶ IEFd Config Unit 2 parameters
Definition
struct ipu3_uapi_iefd_cux2 {
__u32 x0:9;
__u32 x1:9;
__u32 a01:9;
__u32 b01:5;
};
Members
x0
- X0 point of Config Unit, u9.0, default 0.
x1
- X1 point of Config Unit, u9.0, default 0.
a01
- Slope A of Config Unit, s4.4, default 0.
b01
- Slope B, always 0.
Description
Calculate weight for blending directed and non-directed denoise elements
Note
Each instance of Config Unit needs X coordinate of n points and slope A factor between points calculated by driver based on calibration parameters.
All CU inputs are unsigned, they will be converted to signed when written
to register, i.e. a01 will be written to 9 bit register in s4.4 format.
The data precision s4.4 means 4 bits for integer parts and 4 bits for the
fractional part, the first bit indicates positive or negative value.
For userspace software (commonly the imaging library), the computation for
the CU slope values should be based on the slope resolution 1/16 (binary
0.0001 - the minimal interval value), the slope value range is [-256, +255].
This applies to ipu3_uapi_iefd_cux6_ed
, ipu3_uapi_iefd_cux2_1
,
ipu3_uapi_iefd_cux2_1
, ipu3_uapi_iefd_cux4
and ipu3_uapi_iefd_cux6_rad
.
-
struct
ipu3_uapi_iefd_cux6_ed
¶ Calculate power of non-directed sharpening element, Config Unit 6 for edge detail (ED).
Definition
struct ipu3_uapi_iefd_cux6_ed {
__u32 x0:9;
__u32 x1:9;
__u32 x2:9;
__u32 reserved0:5;
__u32 x3:9;
__u32 x4:9;
__u32 x5:9;
__u32 reserved1:5;
__u32 a01:9;
__u32 a12:9;
__u32 a23:9;
__u32 reserved2:5;
__u32 a34:9;
__u32 a45:9;
__u32 reserved3:14;
__u32 b01:9;
__u32 b12:9;
__u32 b23:9;
__u32 reserved4:5;
__u32 b34:9;
__u32 b45:9;
__u32 reserved5:14;
};
Members
x0
- X coordinate of point 0, u9.0, default 0.
x1
- X coordinate of point 1, u9.0, default 0.
x2
- X coordinate of point 2, u9.0, default 0.
reserved0
- reserved
x3
- X coordinate of point 3, u9.0, default 0.
x4
- X coordinate of point 4, u9.0, default 0.
x5
- X coordinate of point 5, u9.0, default 0.
reserved1
- reserved
a01
- slope A points 01, s4.4, default 0.
a12
- slope A points 12, s4.4, default 0.
a23
- slope A points 23, s4.4, default 0.
reserved2
- reserved
a34
- slope A points 34, s4.4, default 0.
a45
- slope A points 45, s4.4, default 0.
reserved3
- reserved
b01
- slope B points 01, s4.4, default 0.
b12
- slope B points 12, s4.4, default 0.
b23
- slope B points 23, s4.4, default 0.
reserved4
- reserved
b34
- slope B points 34, s4.4, default 0.
b45
- slope B points 45, s4.4, default 0.
reserved5
- reserved.
-
struct
ipu3_uapi_iefd_cux2_1
¶ Calculate power of non-directed denoise element apply.
Definition
struct ipu3_uapi_iefd_cux2_1 {
__u32 x0:9;
__u32 x1:9;
__u32 a01:9;
__u32 reserved1:5;
__u32 b01:8;
__u32 reserved2:24;
};
Members
x0
- X0 point of Config Unit, u9.0, default 0.
x1
- X1 point of Config Unit, u9.0, default 0.
a01
- Slope A of Config Unit, s4.4, default 0.
reserved1
- reserved
b01
- offset B0 of Config Unit, u7.0, default 0.
reserved2
- reserved
-
struct
ipu3_uapi_iefd_cux4
¶ Calculate power of non-directed sharpening element.
Definition
struct ipu3_uapi_iefd_cux4 {
__u32 x0:9;
__u32 x1:9;
__u32 x2:9;
__u32 reserved0:5;
__u32 x3:9;
__u32 a01:9;
__u32 a12:9;
__u32 reserved1:5;
__u32 a23:9;
__u32 b01:8;
__u32 b12:8;
__u32 reserved2:7;
__u32 b23:8;
__u32 reserved3:24;
};
Members
x0
- X0 point of Config Unit, u9.0, default 0.
x1
- X1 point of Config Unit, u9.0, default 0.
x2
- X2 point of Config Unit, u9.0, default 0.
reserved0
- reserved
x3
- X3 point of Config Unit, u9.0, default 0.
a01
- Slope A0 of Config Unit, s4.4, default 0.
a12
- Slope A1 of Config Unit, s4.4, default 0.
reserved1
- reserved
a23
- Slope A2 of Config Unit, s4.4, default 0.
b01
- Offset B0 of Config Unit, s7.0, default 0.
b12
- Offset B1 of Config Unit, s7.0, default 0.
reserved2
- reserved
b23
- Offset B2 of Config Unit, s7.0, default 0.
reserved3
- reserved
-
struct
ipu3_uapi_iefd_cux6_rad
¶ Radial Config Unit (CU)
Definition
struct ipu3_uapi_iefd_cux6_rad {
__u32 x0:8;
__u32 x1:8;
__u32 x2:8;
__u32 x3:8;
__u32 x4:8;
__u32 x5:8;
__u32 reserved1:16;
__u32 a01:16;
__u32 a12:16;
__u32 a23:16;
__u32 a34:16;
__u32 a45:16;
__u32 reserved2:16;
__u32 b01:10;
__u32 b12:10;
__u32 b23:10;
__u32 reserved4:2;
__u32 b34:10;
__u32 b45:10;
__u32 reserved5:12;
};
Members
x0
- x0 points of Config Unit radial, u8.0
x1
- x1 points of Config Unit radial, u8.0
x2
- x2 points of Config Unit radial, u8.0
x3
- x3 points of Config Unit radial, u8.0
x4
- x4 points of Config Unit radial, u8.0
x5
- x5 points of Config Unit radial, u8.0
reserved1
- reserved
a01
- Slope A of Config Unit radial, s7.8
a12
- Slope A of Config Unit radial, s7.8
a23
- Slope A of Config Unit radial, s7.8
a34
- Slope A of Config Unit radial, s7.8
a45
- Slope A of Config Unit radial, s7.8
reserved2
- reserved
b01
- Slope B of Config Unit radial, s9.0
b12
- Slope B of Config Unit radial, s9.0
b23
- Slope B of Config Unit radial, s9.0
reserved4
- reserved
b34
- Slope B of Config Unit radial, s9.0
b45
- Slope B of Config Unit radial, s9.0
reserved5
- reserved
-
struct
ipu3_uapi_yuvp1_iefd_cfg_units
¶ IEFd Config Units parameters
Definition
struct ipu3_uapi_yuvp1_iefd_cfg_units {
struct ipu3_uapi_iefd_cux2 cu_1;
struct ipu3_uapi_iefd_cux6_ed cu_ed;
struct ipu3_uapi_iefd_cux2 cu_3;
struct ipu3_uapi_iefd_cux2_1 cu_5;
struct ipu3_uapi_iefd_cux4 cu_6;
struct ipu3_uapi_iefd_cux2 cu_7;
struct ipu3_uapi_iefd_cux4 cu_unsharp;
struct ipu3_uapi_iefd_cux6_rad cu_radial;
struct ipu3_uapi_iefd_cux2 cu_vssnlm;
};
Members
cu_1
- calculate weight for blending directed and
non-directed denoise elements. See
ipu3_uapi_iefd_cux2
cu_ed
- calculate power of non-directed sharpening element, see
ipu3_uapi_iefd_cux6_ed
cu_3
- calculate weight for blending directed and
non-directed denoise elements. A
ipu3_uapi_iefd_cux2
cu_5
- calculate power of non-directed denoise element apply, use
ipu3_uapi_iefd_cux2_1
cu_6
- calculate power of non-directed sharpening element. See
ipu3_uapi_iefd_cux4
cu_7
- calculate weight for blending directed and
non-directed denoise elements. Use
ipu3_uapi_iefd_cux2
cu_unsharp
- Config Unit of unsharp
ipu3_uapi_iefd_cux4
cu_radial
- Config Unit of radial
ipu3_uapi_iefd_cux6_rad
cu_vssnlm
- Config Unit of vssnlm
ipu3_uapi_iefd_cux2
-
struct
ipu3_uapi_yuvp1_iefd_config_s
¶ IEFd config
Definition
struct ipu3_uapi_yuvp1_iefd_config_s {
__u32 horver_diag_coeff:7;
__u32 reserved0:1;
__u32 clamp_stitch:6;
__u32 reserved1:2;
__u32 direct_metric_update:5;
__u32 reserved2:3;
__u32 ed_horver_diag_coeff:7;
__u32 reserved3:1;
};
Members
horver_diag_coeff
- Gradient compensation. Compared with vertical / horizontal (0 / 90 degree), coefficient of diagonal (45 / 135 degree) direction should be corrected by approx. 1/sqrt(2).
reserved0
- reserved
clamp_stitch
- Slope to stitch between clamped and unclamped edge values
reserved1
- reserved
direct_metric_update
- Update coeff for direction metric
reserved2
- reserved
ed_horver_diag_coeff
- Radial Coefficient that compensates for different distance for vertical/horizontal and diagonal gradient calculation (approx. 1/sqrt(2))
reserved3
- reserved
-
struct
ipu3_uapi_yuvp1_iefd_control
¶ IEFd control
Definition
struct ipu3_uapi_yuvp1_iefd_control {
__u32 iefd_en:1;
__u32 denoise_en:1;
__u32 direct_smooth_en:1;
__u32 rad_en:1;
__u32 vssnlm_en:1;
__u32 reserved:27;
};
Members
iefd_en
- Enable IEFd
denoise_en
- Enable denoise
direct_smooth_en
- Enable directional smooth
rad_en
- Enable radial update
vssnlm_en
- Enable VSSNLM output filter
reserved
- reserved
-
struct
ipu3_uapi_sharp_cfg
¶ Sharpening config
Definition
struct ipu3_uapi_sharp_cfg {
__u32 nega_lmt_txt:13;
__u32 reserved0:19;
__u32 posi_lmt_txt:13;
__u32 reserved1:19;
__u32 nega_lmt_dir:13;
__u32 reserved2:19;
__u32 posi_lmt_dir:13;
__u32 reserved3:19;
};
Members
nega_lmt_txt
- Sharpening limit for negative overshoots for texture.
reserved0
- reserved
posi_lmt_txt
- Sharpening limit for positive overshoots for texture.
reserved1
- reserved
nega_lmt_dir
- Sharpening limit for negative overshoots for direction (edge).
reserved2
- reserved
posi_lmt_dir
- Sharpening limit for positive overshoots for direction (edge).
reserved3
- reserved
Description
Fixed point type u13.0, range [0, 8191].
-
struct
ipu3_uapi_far_w
¶ Sharpening config for far sub-group
Definition
struct ipu3_uapi_far_w {
__u32 dir_shrp:7;
__u32 reserved0:1;
__u32 dir_dns:7;
__u32 reserved1:1;
__u32 ndir_dns_powr:7;
__u32 reserved2:9;
};
Members
dir_shrp
- Weight of wide direct sharpening, u1.6, range [0, 64], default 64.
reserved0
- reserved
dir_dns
- Weight of wide direct denoising, u1.6, range [0, 64], default 0.
reserved1
- reserved
ndir_dns_powr
- Power of non-direct denoising, Precision u1.6, range [0, 64], default 64.
reserved2
- reserved
-
struct
ipu3_uapi_unsharp_cfg
¶ Unsharp config
Definition
struct ipu3_uapi_unsharp_cfg {
__u32 unsharp_weight:7;
__u32 reserved0:1;
__u32 unsharp_amount:9;
__u32 reserved1:15;
};
Members
unsharp_weight
- Unsharp mask blending weight. u1.6, range [0, 64], default 16. 0 - disabled, 64 - use only unsharp.
reserved0
- reserved
unsharp_amount
- Unsharp mask amount, u4.5, range [0, 511], default 0.
reserved1
- reserved
-
struct
ipu3_uapi_yuvp1_iefd_shrp_cfg
¶ IEFd sharpness config
Definition
struct ipu3_uapi_yuvp1_iefd_shrp_cfg {
struct ipu3_uapi_sharp_cfg cfg;
struct ipu3_uapi_far_w far_w;
struct ipu3_uapi_unsharp_cfg unshrp_cfg;
};
Members
cfg
- sharpness config
ipu3_uapi_sharp_cfg
far_w
- wide range config, value as specified by
ipu3_uapi_far_w
: The 5x5 environment is separated into 2 sub-groups, the 3x3 nearest neighbors (8 pixels called Near), and the second order neighborhood around them (16 pixels called Far). unshrp_cfg
- unsharpness config.
ipu3_uapi_unsharp_cfg
-
struct
ipu3_uapi_unsharp_coef0
¶ Unsharp mask coefficients
Definition
struct ipu3_uapi_unsharp_coef0 {
__u32 c00:9;
__u32 c01:9;
__u32 c02:9;
__u32 reserved:5;
};
Members
c00
- Coeff11, s0.8, range [-255, 255], default 1.
c01
- Coeff12, s0.8, range [-255, 255], default 5.
c02
- Coeff13, s0.8, range [-255, 255], default 9.
reserved
- reserved
Description
Configurable registers for common sharpening support.
-
struct
ipu3_uapi_unsharp_coef1
¶ Unsharp mask coefficients
Definition
struct ipu3_uapi_unsharp_coef1 {
__u32 c11:9;
__u32 c12:9;
__u32 c22:9;
__u32 reserved:5;
};
Members
c11
- Coeff22, s0.8, range [-255, 255], default 29.
c12
- Coeff23, s0.8, range [-255, 255], default 55.
c22
- Coeff33, s0.8, range [-255, 255], default 96.
reserved
- reserved
-
struct
ipu3_uapi_yuvp1_iefd_unshrp_cfg
¶ Unsharp mask config
Definition
struct ipu3_uapi_yuvp1_iefd_unshrp_cfg {
struct ipu3_uapi_unsharp_coef0 unsharp_coef0;
struct ipu3_uapi_unsharp_coef1 unsharp_coef1;
};
Members
unsharp_coef0
- unsharp coefficient 0 config. See
ipu3_uapi_unsharp_coef0
unsharp_coef1
- unsharp coefficient 1 config. See
ipu3_uapi_unsharp_coef1
-
struct
ipu3_uapi_radial_reset_xy
¶ Radial coordinate reset
Definition
struct ipu3_uapi_radial_reset_xy {
__s32 x:13;
__u32 reserved0:3;
__s32 y:13;
__u32 reserved1:3;
};
Members
x
- Radial reset of x coordinate. Precision s12, [-4095, 4095], default 0.
reserved0
- reserved
y
- Radial center y coordinate. Precision s12, [-4095, 4095], default 0.
reserved1
- reserved
-
struct
ipu3_uapi_radial_reset_x2
¶ Radial X^2 reset
Definition
struct ipu3_uapi_radial_reset_x2 {
__u32 x2:24;
__u32 reserved:8;
};
Members
x2
- Radial reset of x^2 coordinate. Precision u24, default 0.
reserved
- reserved
-
struct
ipu3_uapi_radial_reset_y2
¶ Radial Y^2 reset
Definition
struct ipu3_uapi_radial_reset_y2 {
__u32 y2:24;
__u32 reserved:8;
};
Members
y2
- Radial reset of y^2 coordinate. Precision u24, default 0.
reserved
- reserved
-
struct
ipu3_uapi_radial_cfg
¶ Radial config
Definition
struct ipu3_uapi_radial_cfg {
__u32 rad_nf:4;
__u32 reserved0:4;
__u32 rad_inv_r2:7;
__u32 reserved1:17;
};
Members
rad_nf
- Radial. R^2 normalization factor is scale down by 2^ - (15 + scale)
reserved0
- reserved
rad_inv_r2
- Radial R^-2 normelized to (0.5..1). Precision u7, range [0, 127].
reserved1
- reserved
-
struct
ipu3_uapi_rad_far_w
¶ Radial FAR sub-group
Definition
struct ipu3_uapi_rad_far_w {
__u32 rad_dir_far_sharp_w:8;
__u32 rad_dir_far_dns_w:8;
__u32 rad_ndir_far_dns_power:8;
__u32 reserved:8;
};
Members
rad_dir_far_sharp_w
- Weight of wide direct sharpening, u1.6, range [0, 64], default 64.
rad_dir_far_dns_w
- Weight of wide direct denoising, u1.6, range [0, 64], default 0.
rad_ndir_far_dns_power
- power of non-direct sharpening, u1.6, range [0, 64], default 0.
reserved
- reserved
-
struct
ipu3_uapi_cu_cfg0
¶ Radius Config Unit cfg0 register
Definition
struct ipu3_uapi_cu_cfg0 {
__u32 cu6_pow:7;
__u32 reserved0:1;
__u32 cu_unsharp_pow:7;
__u32 reserved1:1;
__u32 rad_cu6_pow:7;
__u32 reserved2:1;
__u32 rad_cu_unsharp_pow:6;
__u32 reserved3:2;
};
Members
cu6_pow
- Power of CU6. Power of non-direct sharpening, u3.4.
reserved0
- reserved
cu_unsharp_pow
- Power of unsharp mask, u2.4.
reserved1
- reserved
rad_cu6_pow
- Radial/corner CU6. Directed sharpening power, u3.4.
reserved2
- reserved
rad_cu_unsharp_pow
- Radial power of unsharp mask, u2.4.
reserved3
- reserved
-
struct
ipu3_uapi_cu_cfg1
¶ Radius Config Unit cfg1 register
Definition
struct ipu3_uapi_cu_cfg1 {
__u32 rad_cu6_x1:9;
__u32 reserved0:1;
__u32 rad_cu_unsharp_x1:9;
__u32 reserved1:13;
};
Members
rad_cu6_x1
- X1 point of Config Unit 6, precision u9.0.
reserved0
- reserved
rad_cu_unsharp_x1
- X1 point for Config Unit unsharp for radial/corner point precision u9.0.
reserved1
- reserved
-
struct
ipu3_uapi_yuvp1_iefd_rad_cfg
¶ IEFd parameters changed radially over the picture plane.
Definition
struct ipu3_uapi_yuvp1_iefd_rad_cfg {
struct ipu3_uapi_radial_reset_xy reset_xy;
struct ipu3_uapi_radial_reset_x2 reset_x2;
struct ipu3_uapi_radial_reset_y2 reset_y2;
struct ipu3_uapi_radial_cfg cfg;
struct ipu3_uapi_rad_far_w rad_far_w;
struct ipu3_uapi_cu_cfg0 cu_cfg0;
struct ipu3_uapi_cu_cfg1 cu_cfg1;
};
Members
reset_xy
- reset xy value in radial calculation.
ipu3_uapi_radial_reset_xy
reset_x2
- reset x square value in radial calculation. See struct
ipu3_uapi_radial_reset_x2
reset_y2
- reset y square value in radial calculation. See struct
ipu3_uapi_radial_reset_y2
cfg
- radial config defined in
ipu3_uapi_radial_cfg
rad_far_w
- weight for wide range radial.
ipu3_uapi_rad_far_w
cu_cfg0
- configuration unit 0. See
ipu3_uapi_cu_cfg0
cu_cfg1
- configuration unit 1. See
ipu3_uapi_cu_cfg1
-
struct
ipu3_uapi_vss_lut_x
¶ Vssnlm LUT x0/x1/x2
Definition
struct ipu3_uapi_vss_lut_x {
__u32 vs_x0:8;
__u32 vs_x1:8;
__u32 vs_x2:8;
__u32 reserved2:8;
};
Members
vs_x0
- Vssnlm LUT x0, precision u8, range [0, 255], default 16.
vs_x1
- Vssnlm LUT x1, precision u8, range [0, 255], default 32.
vs_x2
- Vssnlm LUT x2, precision u8, range [0, 255], default 64.
reserved2
- reserved
-
struct
ipu3_uapi_vss_lut_y
¶ Vssnlm LUT y0/y1/y2
Definition
struct ipu3_uapi_vss_lut_y {
__u32 vs_y1:4;
__u32 reserved0:4;
__u32 vs_y2:4;
__u32 reserved1:4;
__u32 vs_y3:4;
__u32 reserved2:12;
};
Members
vs_y1
- Vssnlm LUT y1, precision u4, range [0, 8], default 1.
reserved0
- reserved
vs_y2
- Vssnlm LUT y2, precision u4, range [0, 8], default 3.
reserved1
- reserved
vs_y3
- Vssnlm LUT y3, precision u4, range [0, 8], default 8.
reserved2
- reserved
-
struct
ipu3_uapi_yuvp1_iefd_vssnlm_cfg
¶ IEFd Vssnlm Lookup table
Definition
struct ipu3_uapi_yuvp1_iefd_vssnlm_cfg {
struct ipu3_uapi_vss_lut_x vss_lut_x;
struct ipu3_uapi_vss_lut_y vss_lut_y;
};
Members
vss_lut_x
- vss lookup table. See
ipu3_uapi_vss_lut_x
description vss_lut_y
- vss lookup table. See
ipu3_uapi_vss_lut_y
description
-
struct
ipu3_uapi_yuvp1_iefd_config
¶ IEFd config
Definition
struct ipu3_uapi_yuvp1_iefd_config {
struct ipu3_uapi_yuvp1_iefd_cfg_units units;
struct ipu3_uapi_yuvp1_iefd_config_s config;
struct ipu3_uapi_yuvp1_iefd_control control;
struct ipu3_uapi_yuvp1_iefd_shrp_cfg sharp;
struct ipu3_uapi_yuvp1_iefd_unshrp_cfg unsharp;
struct ipu3_uapi_yuvp1_iefd_rad_cfg rad;
struct ipu3_uapi_yuvp1_iefd_vssnlm_cfg vsslnm;
};
Members
units
- configuration unit setting,
ipu3_uapi_yuvp1_iefd_cfg_units
config
- configuration, as defined by
ipu3_uapi_yuvp1_iefd_config_s
control
- control setting, as defined by
ipu3_uapi_yuvp1_iefd_control
sharp
- sharpness setting, as defined by
ipu3_uapi_yuvp1_iefd_shrp_cfg
unsharp
- unsharpness setting, as defined by
ipu3_uapi_yuvp1_iefd_unshrp_cfg
rad
- radial setting, as defined by
ipu3_uapi_yuvp1_iefd_rad_cfg
vsslnm
- vsslnm setting, as defined by
ipu3_uapi_yuvp1_iefd_vssnlm_cfg
-
struct
ipu3_uapi_yuvp1_yds_config
¶ Y Down-Sampling config
Definition
struct ipu3_uapi_yuvp1_yds_config {
__u32 c00:2;
__u32 c01:2;
__u32 c02:2;
__u32 c03:2;
__u32 c10:2;
__u32 c11:2;
__u32 c12:2;
__u32 c13:2;
__u32 norm_factor:5;
__u32 reserved0:4;
__u32 bin_output:1;
__u32 reserved1:6;
};
Members
c00
- range [0, 3], default 0x0
c01
- range [0, 3], default 0x1
c02
- range [0, 3], default 0x1
c03
- range [0, 3], default 0x0
c10
- range [0, 3], default 0x0
c11
- range [0, 3], default 0x1
c12
- range [0, 3], default 0x1
c13
- range [0, 3], default 0x0
norm_factor
- Normalization factor, range [0, 4], default 2 0 - divide by 1 1 - divide by 2 2 - divide by 4 3 - divide by 8 4 - divide by 16
reserved0
- reserved
bin_output
- Down sampling on Luma channel in two optional modes 0 - Bin output 4.2.0 (default), 1 output 4.2.2.
reserved1
- reserved
Description
Above are 4x2 filter coefficients for chroma output downscaling.
-
struct
ipu3_uapi_yuvp1_chnr_enable_config
¶ Chroma noise reduction enable
Definition
struct ipu3_uapi_yuvp1_chnr_enable_config {
__u32 enable:1;
__u32 yuv_mode:1;
__u32 reserved0:14;
__u32 col_size:12;
__u32 reserved1:4;
};
Members
enable
- enable/disable chroma noise reduction
yuv_mode
- 0 - YUV420, 1 - YUV422
reserved0
- reserved
col_size
- number of columns in the frame, max width is 2560
reserved1
- reserved
-
struct
ipu3_uapi_yuvp1_chnr_coring_config
¶ Coring thresholds for UV
Definition
struct ipu3_uapi_yuvp1_chnr_coring_config {
__u32 u:13;
__u32 reserved0:3;
__u32 v:13;
__u32 reserved1:3;
};
Members
u
- U coring level, u0.13, range [0.0, 1.0], default 0.0
reserved0
- reserved
v
- V coring level, u0.13, range [0.0, 1.0], default 0.0
reserved1
- reserved
-
struct
ipu3_uapi_yuvp1_chnr_sense_gain_config
¶ Chroma noise reduction gains
Definition
struct ipu3_uapi_yuvp1_chnr_sense_gain_config {
__u32 vy:8;
__u32 vu:8;
__u32 vv:8;
__u32 reserved0:8;
__u32 hy:8;
__u32 hu:8;
__u32 hv:8;
__u32 reserved1:8;
};
Members
vy
- Sensitivity of horizontal edge of Y, default 100
vu
- Sensitivity of horizontal edge of U, default 100
vv
- Sensitivity of horizontal edge of V, default 100
reserved0
- reserved
hy
- Sensitivity of vertical edge of Y, default 50
hu
- Sensitivity of vertical edge of U, default 50
hv
- Sensitivity of vertical edge of V, default 50
reserved1
- reserved
Description
All sensitivity gain parameters have precision u13.0, range [0, 8191].
-
struct
ipu3_uapi_yuvp1_chnr_iir_fir_config
¶ Chroma IIR/FIR filter config
Definition
struct ipu3_uapi_yuvp1_chnr_iir_fir_config {
__u32 fir_0h:6;
__u32 reserved0:2;
__u32 fir_1h:6;
__u32 reserved1:2;
__u32 fir_2h:6;
__u32 dalpha_clip_val:9;
__u32 reserved2:1;
};
Members
fir_0h
- Value of center tap in horizontal FIR, range [0, 32], default 8.
reserved0
- reserved
fir_1h
- Value of distance 1 in horizontal FIR, range [0, 32], default 12.
reserved1
- reserved
fir_2h
- Value of distance 2 tap in horizontal FIR, range [0, 32], default 0.
dalpha_clip_val
- weight for previous row in IIR, range [1, 256], default 0.
reserved2
- reserved
-
struct
ipu3_uapi_yuvp1_chnr_config
¶ Chroma noise reduction config
Definition
struct ipu3_uapi_yuvp1_chnr_config {
struct ipu3_uapi_yuvp1_chnr_enable_config enable;
struct ipu3_uapi_yuvp1_chnr_coring_config coring;
struct ipu3_uapi_yuvp1_chnr_sense_gain_config sense_gain;
struct ipu3_uapi_yuvp1_chnr_iir_fir_config iir_fir;
};
Members
enable
- chroma noise reduction enable, see
ipu3_uapi_yuvp1_chnr_enable_config
coring
- coring config for chroma noise reduction, see
ipu3_uapi_yuvp1_chnr_coring_config
sense_gain
- sensitivity config for chroma noise reduction, see ipu3_uapi_yuvp1_chnr_sense_gain_config
iir_fir
- iir and fir config for chroma noise reduction, see ipu3_uapi_yuvp1_chnr_iir_fir_config
-
struct
ipu3_uapi_yuvp1_y_ee_nr_lpf_config
¶ Luma(Y) edge enhancement low-pass filter coefficients
Definition
struct ipu3_uapi_yuvp1_y_ee_nr_lpf_config {
__u32 a_diag:5;
__u32 reserved0:3;
__u32 a_periph:5;
__u32 reserved1:3;
__u32 a_cent:5;
__u32 reserved2:9;
__u32 enable:1;
};
Members
a_diag
- Smoothing diagonal coefficient, u5.0.
reserved0
- reserved
a_periph
- Image smoothing perpherial, u5.0.
reserved1
- reserved
a_cent
- Image Smoothing center coefficient, u5.0.
reserved2
- reserved
enable
- 0: Y_EE_NR disabled, output = input; 1: Y_EE_NR enabled.
-
struct
ipu3_uapi_yuvp1_y_ee_nr_sense_config
¶ Luma(Y) edge enhancement noise reduction sensitivity gains
Definition
struct ipu3_uapi_yuvp1_y_ee_nr_sense_config {
__u32 edge_sense_0:13;
__u32 reserved0:3;
__u32 delta_edge_sense:13;
__u32 reserved1:3;
__u32 corner_sense_0:13;
__u32 reserved2:3;
__u32 delta_corner_sense:13;
__u32 reserved3:3;
};
Members
edge_sense_0
- Sensitivity of edge in dark area. u13.0, default 8191.
reserved0
- reserved
delta_edge_sense
- Difference in the sensitivity of edges between the bright and dark areas. u13.0, default 0.
reserved1
- reserved
corner_sense_0
- Sensitivity of corner in dark area. u13.0, default 0.
reserved2
- reserved
delta_corner_sense
- Difference in the sensitivity of corners between the bright and dark areas. u13.0, default 8191.
reserved3
- reserved
-
struct
ipu3_uapi_yuvp1_y_ee_nr_gain_config
¶ Luma(Y) edge enhancement noise reduction gain config
Definition
struct ipu3_uapi_yuvp1_y_ee_nr_gain_config {
__u32 gain_pos_0:5;
__u32 reserved0:3;
__u32 delta_gain_posi:5;
__u32 reserved1:3;
__u32 gain_neg_0:5;
__u32 reserved2:3;
__u32 delta_gain_neg:5;
__u32 reserved3:3;
};
Members
gain_pos_0
- Gain for positive edge in dark area. u5.0, [0, 16], default 2.
reserved0
- reserved
delta_gain_posi
- Difference in the gain of edges between the bright and dark areas for positive edges. u5.0, [0, 16], default 0.
reserved1
- reserved
gain_neg_0
- Gain for negative edge in dark area. u5.0, [0, 16], default 8.
reserved2
- reserved
delta_gain_neg
- Difference in the gain of edges between the bright and dark areas for negative edges. u5.0, [0, 16], default 0.
reserved3
- reserved
-
struct
ipu3_uapi_yuvp1_y_ee_nr_clip_config
¶ Luma(Y) edge enhancement noise reduction clipping config
Definition
struct ipu3_uapi_yuvp1_y_ee_nr_clip_config {
__u32 clip_pos_0:5;
__u32 reserved0:3;
__u32 delta_clip_posi:5;
__u32 reserved1:3;
__u32 clip_neg_0:5;
__u32 reserved2:3;
__u32 delta_clip_neg:5;
__u32 reserved3:3;
};
Members
clip_pos_0
- Limit of positive edge in dark area u5, value [0, 16], default 8.
reserved0
- reserved
delta_clip_posi
- Difference in the limit of edges between the bright and dark areas for positive edges. u5, value [0, 16], default 8.
reserved1
- reserved
clip_neg_0
- Limit of negative edge in dark area u5, value [0, 16], default 8.
reserved2
- reserved
delta_clip_neg
- Difference in the limit of edges between the bright and dark areas for negative edges. u5, value [0, 16], default 8.
reserved3
- reserved
-
struct
ipu3_uapi_yuvp1_y_ee_nr_frng_config
¶ Luma(Y) edge enhancement noise reduction fringe config
Definition
struct ipu3_uapi_yuvp1_y_ee_nr_frng_config {
__u32 gain_exp:4;
__u32 reserved0:28;
__u32 min_edge:13;
__u32 reserved1:3;
__u32 lin_seg_param:4;
__u32 reserved2:4;
__u32 t1:1;
__u32 t2:1;
__u32 reserved3:6;
};
Members
gain_exp
- Common exponent of gains, u4, [0, 8], default 2.
reserved0
- reserved
min_edge
- Threshold for edge and smooth stitching, u13.
reserved1
- reserved
lin_seg_param
- Power of LinSeg, u4.
reserved2
- reserved
t1
- Parameter for enabling/disabling the edge enhancement, u1.0, [0, 1], default 1.
t2
- Parameter for enabling/disabling the smoothing, u1.0, [0, 1], default 1.
reserved3
- reserved
-
struct
ipu3_uapi_yuvp1_y_ee_nr_diag_config
¶ Luma(Y) edge enhancement noise reduction diagonal config
Definition
struct ipu3_uapi_yuvp1_y_ee_nr_diag_config {
__u32 diag_disc_g:4;
__u32 reserved0:4;
__u32 hvw_hor:4;
__u32 dw_hor:4;
__u32 hvw_diag:4;
__u32 dw_diag:4;
__u32 reserved1:8;
};
Members
diag_disc_g
- Coefficient that prioritize diagonal edge direction on horizontal or vertical for final enhancement. u4.0, [1, 15], default 1.
reserved0
- reserved
hvw_hor
- Weight of horizontal/vertical edge enhancement for hv edge. u2.2, [1, 15], default 4.
dw_hor
- Weight of diagonal edge enhancement for hv edge. u2.2, [1, 15], default 1.
hvw_diag
- Weight of horizontal/vertical edge enhancement for diagonal edge. u2.2, [1, 15], default 1.
dw_diag
- Weight of diagonal edge enhancement for diagonal edge. u2.2, [1, 15], default 4.
reserved1
- reserved
-
struct
ipu3_uapi_yuvp1_y_ee_nr_fc_coring_config
¶ Luma(Y) edge enhancement noise reduction false color correction (FCC) coring config
Definition
struct ipu3_uapi_yuvp1_y_ee_nr_fc_coring_config {
__u32 pos_0:13;
__u32 reserved0:3;
__u32 pos_delta:13;
__u32 reserved1:3;
__u32 neg_0:13;
__u32 reserved2:3;
__u32 neg_delta:13;
__u32 reserved3:3;
};
Members
pos_0
- Gain for positive edge in dark, u13.0, [0, 16], default 0.
reserved0
- reserved
pos_delta
- Gain for positive edge in bright, value: pos_0 + pos_delta <=16 u13.0, default 0.
reserved1
- reserved
neg_0
- Gain for negative edge in dark area, u13.0, range [0, 16], default 0.
reserved2
- reserved
neg_delta
- Gain for negative edge in bright area. neg_0 + neg_delta <=16 u13.0, default 0.
reserved3
- reserved
Description
Coring is a simple soft thresholding technique.
-
struct
ipu3_uapi_yuvp1_y_ee_nr_config
¶ Edge enhancement and noise reduction
Definition
struct ipu3_uapi_yuvp1_y_ee_nr_config {
struct ipu3_uapi_yuvp1_y_ee_nr_lpf_config lpf;
struct ipu3_uapi_yuvp1_y_ee_nr_sense_config sense;
struct ipu3_uapi_yuvp1_y_ee_nr_gain_config gain;
struct ipu3_uapi_yuvp1_y_ee_nr_clip_config clip;
struct ipu3_uapi_yuvp1_y_ee_nr_frng_config frng;
struct ipu3_uapi_yuvp1_y_ee_nr_diag_config diag;
struct ipu3_uapi_yuvp1_y_ee_nr_fc_coring_config fc_coring;
};
Members
lpf
- low-pass filter config. See
ipu3_uapi_yuvp1_y_ee_nr_lpf_config
sense
- sensitivity config. See
ipu3_uapi_yuvp1_y_ee_nr_sense_config
gain
- gain config as defined in
ipu3_uapi_yuvp1_y_ee_nr_gain_config
clip
- clip config as defined in
ipu3_uapi_yuvp1_y_ee_nr_clip_config
frng
- fringe config as defined in
ipu3_uapi_yuvp1_y_ee_nr_frng_config
diag
- diagonal edge config. See
ipu3_uapi_yuvp1_y_ee_nr_diag_config
fc_coring
- coring config for fringe control. See
ipu3_uapi_yuvp1_y_ee_nr_fc_coring_config
-
struct
ipu3_uapi_yuvp2_tcc_gen_control_static_config
¶ Total color correction general control config
Definition
struct ipu3_uapi_yuvp2_tcc_gen_control_static_config {
__u32 en:1;
__u32 blend_shift:3;
__u32 gain_according_to_y_only:1;
__u32 reserved0:11;
__s32 gamma:5;
__u32 reserved1:3;
__s32 delta:5;
__u32 reserved2:3;
};
Members
en
- 0 - TCC disabled. Output = input 1 - TCC enabled.
blend_shift
- blend shift, Range[3, 4], default NA.
gain_according_to_y_only
- 0: Gain is calculated according to YUV, 1: Gain is calculated according to Y only
reserved0
- reserved
gamma
- Final blending coefficients. Values[-16, 16], default NA.
reserved1
- reserved
delta
- Final blending coefficients. Values[-16, 16], default NA.
reserved2
- reserved
-
struct
ipu3_uapi_yuvp2_tcc_macc_elem_static_config
¶ Total color correction multi-axis color control (MACC) config
Definition
struct ipu3_uapi_yuvp2_tcc_macc_elem_static_config {
__s32 a:12;
__u32 reserved0:4;
__s32 b:12;
__u32 reserved1:4;
__s32 c:12;
__u32 reserved2:4;
__s32 d:12;
__u32 reserved3:4;
};
Members
a
- a coefficient for 2x2 MACC conversion matrix.
reserved0
- reserved
b
- b coefficient 2x2 MACC conversion matrix.
reserved1
- reserved
c
- c coefficient for 2x2 MACC conversion matrix.
reserved2
- reserved
d
- d coefficient for 2x2 MACC conversion matrix.
reserved3
- reserved
-
struct
ipu3_uapi_yuvp2_tcc_macc_table_static_config
¶ Total color correction multi-axis color control (MACC) table array
Definition
struct ipu3_uapi_yuvp2_tcc_macc_table_static_config {
struct ipu3_uapi_yuvp2_tcc_macc_elem_static_config entries[IPU3_UAPI_YUVP2_TCC_MACC_TABLE_ELEMENTS];
};
Members
entries
- config for multi axis color correction, as specified by
ipu3_uapi_yuvp2_tcc_macc_elem_static_config
-
struct
ipu3_uapi_yuvp2_tcc_inv_y_lut_static_config
¶ Total color correction inverse y lookup table
Definition
struct ipu3_uapi_yuvp2_tcc_inv_y_lut_static_config {
__u16 entries[IPU3_UAPI_YUVP2_TCC_INV_Y_LUT_ELEMENTS];
};
Members
entries
- lookup table for inverse y estimation, and use it to estimate the ratio between luma and chroma. Chroma by approximate the absolute value of the radius on the chroma plane (R = sqrt(u^2+v^2) ) and luma by approximate by 1/Y.
-
struct
ipu3_uapi_yuvp2_tcc_gain_pcwl_lut_static_config
¶ Total color correction lookup table for PCWL
Definition
struct ipu3_uapi_yuvp2_tcc_gain_pcwl_lut_static_config {
__u16 entries[IPU3_UAPI_YUVP2_TCC_GAIN_PCWL_LUT_ELEMENTS];
};
Members
entries
- lookup table for gain piece wise linear transformation (PCWL)
-
struct
ipu3_uapi_yuvp2_tcc_r_sqr_lut_static_config
¶ Total color correction lookup table for r square root
Definition
struct ipu3_uapi_yuvp2_tcc_r_sqr_lut_static_config {
__s16 entries[IPU3_UAPI_YUVP2_TCC_R_SQR_LUT_ELEMENTS];
};
Members
entries
- lookup table for r square root estimation
-
struct
ipu3_uapi_yuvp2_tcc_static_config
¶ Total color correction static
Definition
struct ipu3_uapi_yuvp2_tcc_static_config {
struct ipu3_uapi_yuvp2_tcc_gen_control_static_config gen_control;
struct ipu3_uapi_yuvp2_tcc_macc_table_static_config macc_table;
struct ipu3_uapi_yuvp2_tcc_inv_y_lut_static_config inv_y_lut;
struct ipu3_uapi_yuvp2_tcc_gain_pcwl_lut_static_config gain_pcwl;
struct ipu3_uapi_yuvp2_tcc_r_sqr_lut_static_config r_sqr_lut;
};
Members
gen_control
- general config for Total Color Correction
macc_table
- config for multi axis color correction
inv_y_lut
- lookup table for inverse y estimation
gain_pcwl
- lookup table for gain PCWL
r_sqr_lut
- lookup table for r square root estimation.
-
struct
ipu3_uapi_anr_transform_config
¶ Advanced noise reduction transform
Definition
struct ipu3_uapi_anr_transform_config {
__u32 enable:1;
__u32 adaptive_treshhold_en:1;
__u32 reserved1:30;
__u8 reserved2[44];
struct ipu3_uapi_anr_alpha alpha[3];
struct ipu3_uapi_anr_beta beta[3];
struct ipu3_uapi_anr_plane_color color[3];
__u16 sqrt_lut[IPU3_UAPI_ANR_LUT_SIZE];
__s16 xreset:13;
__u16 reserved3:3;
__s16 yreset:13;
__u16 reserved4:3;
__u32 x_sqr_reset:24;
__u32 r_normfactor:5;
__u32 reserved5:3;
__u32 y_sqr_reset:24;
__u32 gain_scale:8;
};
Members
enable
- advanced noise reduction enabled.
adaptive_treshhold_en
- On IPU3, adaptive threshold is always enabled.
reserved1
- reserved
reserved2
- reserved
alpha
- using following defaults: 13, 13, 13, 13, 0, 0, 0, 0 11, 11, 11, 11, 0, 0, 0, 0 14, 14, 14, 14, 0, 0, 0, 0
beta
- use following defaults: 24, 24, 24, 24 21, 20, 20, 21 25, 25, 25, 25
color
- use defaults defined in driver/media/pci/intel/ipu3-tables.c
sqrt_lut
- 11 bits per element, values = [724 768 810 849 887 923 958 991 1024 1056 1116 1145 1173 1201 1086 1228 1254 1280 1305 1330 1355 1379 1402 1425 1448]
xreset
- Reset value of X for r^2 calculation Value: col_start-X_center Constraint: Xreset + FrameWdith=4095 Xreset= -4095, default -1632.
reserved3
- reserved
yreset
- Reset value of Y for r^2 calculation Value: row_start-Y_center Constraint: Yreset + FrameHeight=4095 Yreset= -4095, default -1224.
reserved4
- reserved
x_sqr_reset
- Reset value of X^2 for r^2 calculation Value = (Xreset)^2
r_normfactor
- Normalization factor for R. Default 14.
reserved5
- reserved
y_sqr_reset
- Reset value of Y^2 for r^2 calculation Value = (Yreset)^2
gain_scale
- Parameter describing shading gain as a function of distance from the image center. A single value per frame, loaded by the driver. Default 115.
-
struct
ipu3_uapi_anr_stitch_pyramid
¶ ANR stitch pyramid
Definition
struct ipu3_uapi_anr_stitch_pyramid {
__u32 entry0:6;
__u32 entry1:6;
__u32 entry2:6;
__u32 reserved:14;
};
Members
entry0
- pyramid LUT entry0, range [0x0, 0x3f]
entry1
- pyramid LUT entry1, range [0x0, 0x3f]
entry2
- pyramid LUT entry2, range [0x0, 0x3f]
reserved
- reserved
-
struct
ipu3_uapi_anr_stitch_config
¶ ANR stitch config
Definition
struct ipu3_uapi_anr_stitch_config {
__u32 anr_stitch_en;
__u8 reserved[44];
struct ipu3_uapi_anr_stitch_pyramid pyramid[IPU3_UAPI_ANR_PYRAMID_SIZE];
};
Members
anr_stitch_en
- enable stitch. Enabled with 1.
reserved
- reserved
pyramid
- pyramid table as defined by
ipu3_uapi_anr_stitch_pyramid
default values: { 1, 3, 5 }, { 7, 7, 5 }, { 3, 1, 3 }, { 9, 15, 21 }, { 21, 15, 9 }, { 3, 5, 15 }, { 25, 35, 35 }, { 25, 15, 5 }, { 7, 21, 35 }, { 49, 49, 35 }, { 21, 7, 7 }, { 21, 35, 49 }, { 49, 35, 21 }, { 7, 5, 15 }, { 25, 35, 35 }, { 25, 15, 5 }, { 3, 9, 15 }, { 21, 21, 15 }, { 9, 3, 1 }, { 3, 5, 7 }, { 7, 5, 3}, { 1 }
-
struct
ipu3_uapi_anr_config
¶ ANR config
Definition
struct ipu3_uapi_anr_config {
struct ipu3_uapi_anr_transform_config transform ;
struct ipu3_uapi_anr_stitch_config stitch ;
};
Members
transform
- advanced noise reduction transform config as specified by
ipu3_uapi_anr_transform_config
stitch
- create 4x4 patch from 4 surrounding 8x8 patches.
-
struct
ipu3_uapi_acc_param
¶ Accelerator cluster parameters
Definition
struct ipu3_uapi_acc_param {
struct ipu3_uapi_bnr_static_config bnr;
struct ipu3_uapi_bnr_static_config_green_disparity green_disparity ;
struct ipu3_uapi_dm_config dm ;
struct ipu3_uapi_ccm_mat_config ccm ;
struct ipu3_uapi_gamma_config gamma ;
struct ipu3_uapi_csc_mat_config csc ;
struct ipu3_uapi_cds_params cds ;
struct ipu3_uapi_shd_config shd ;
struct ipu3_uapi_yuvp1_iefd_config iefd ;
struct ipu3_uapi_yuvp1_yds_config yds_c0 ;
struct ipu3_uapi_yuvp1_chnr_config chnr_c0 ;
struct ipu3_uapi_yuvp1_y_ee_nr_config y_ee_nr ;
struct ipu3_uapi_yuvp1_yds_config yds ;
struct ipu3_uapi_yuvp1_chnr_config chnr ;
struct ipu3_uapi_yuvp1_yds_config yds2 ;
struct ipu3_uapi_yuvp2_tcc_static_config tcc ;
struct ipu3_uapi_anr_config anr;
struct ipu3_uapi_awb_fr_config_s awb_fr ;
struct ipu3_uapi_ae_config ae;
struct ipu3_uapi_af_config_s af;
struct ipu3_uapi_awb_config awb;
};
Members
bnr
- parameters for bayer noise reduction static config. See
ipu3_uapi_bnr_static_config
green_disparity
- disparity static config between gr and gb channel.
See
ipu3_uapi_bnr_static_config_green_disparity
dm
- de-mosaic config. See
ipu3_uapi_dm_config
ccm
- color correction matrix. See
ipu3_uapi_ccm_mat_config
gamma
- gamma correction config. See
ipu3_uapi_gamma_config
csc
- color space conversion matrix. See
ipu3_uapi_csc_mat_config
cds
- color down sample config. See
ipu3_uapi_cds_params
shd
- lens shading correction config. See
ipu3_uapi_shd_config
iefd
- Image enhancement filter and denoise config.
ipu3_uapi_yuvp1_iefd_config
yds_c0
- y down scaler config.
ipu3_uapi_yuvp1_yds_config
chnr_c0
- chroma noise reduction config.
ipu3_uapi_yuvp1_chnr_config
y_ee_nr
- y edge enhancement and noise reduction config.
ipu3_uapi_yuvp1_y_ee_nr_config
yds
- y down scaler config. See
ipu3_uapi_yuvp1_yds_config
chnr
- chroma noise reduction config. See
ipu3_uapi_yuvp1_chnr_config
yds2
- y channel down scaler config. See
ipu3_uapi_yuvp1_yds_config
tcc
- total color correction config as defined in struct
ipu3_uapi_yuvp2_tcc_static_config
anr
- advanced noise reduction config.See
ipu3_uapi_anr_config
awb_fr
- AWB filter response config. See ipu3_uapi_awb_fr_config
ae
- auto exposure config As specified by
ipu3_uapi_ae_config
af
- auto focus config. As specified by
ipu3_uapi_af_config
awb
- auto white balance config. As specified by
ipu3_uapi_awb_config
Description
ACC refers to the HW cluster containing all Fixed Functions (FFs). Each FF implements a specific algorithm.
-
struct
ipu3_uapi_isp_lin_vmem_params
¶ Linearization parameters
Definition
struct ipu3_uapi_isp_lin_vmem_params {
__s16 lin_lutlow_gr[IPU3_UAPI_LIN_LUT_SIZE];
__s16 lin_lutlow_r[IPU3_UAPI_LIN_LUT_SIZE];
__s16 lin_lutlow_b[IPU3_UAPI_LIN_LUT_SIZE];
__s16 lin_lutlow_gb[IPU3_UAPI_LIN_LUT_SIZE];
__s16 lin_lutdif_gr[IPU3_UAPI_LIN_LUT_SIZE];
__s16 lin_lutdif_r[IPU3_UAPI_LIN_LUT_SIZE];
__s16 lin_lutdif_b[IPU3_UAPI_LIN_LUT_SIZE];
__s16 lin_lutdif_gb[IPU3_UAPI_LIN_LUT_SIZE];
};
Members
lin_lutlow_gr
- linearization look-up table for GR channel interpolation.
lin_lutlow_r
- linearization look-up table for R channel interpolation.
lin_lutlow_b
- linearization look-up table for B channel interpolation.
lin_lutlow_gb
- linearization look-up table for GB channel interpolation. lin_lutlow_gr / lin_lutlow_r / lin_lutlow_b / lin_lutlow_gb <= LIN_MAX_VALUE - 1.
lin_lutdif_gr
- lin_lutlow_gr[i+1] - lin_lutlow_gr[i].
lin_lutdif_r
- lin_lutlow_r[i+1] - lin_lutlow_r[i].
lin_lutdif_b
- lin_lutlow_b[i+1] - lin_lutlow_b[i].
lin_lutdif_gb
- lin_lutlow_gb[i+1] - lin_lutlow_gb[i].
-
struct
ipu3_uapi_isp_tnr3_vmem_params
¶ Temporal noise reduction vector memory parameters
Definition
struct ipu3_uapi_isp_tnr3_vmem_params {
__u16 slope[IPU3_UAPI_ISP_TNR3_VMEM_LEN];
__u16 reserved1[IPU3_UAPI_ISP_VEC_ELEMS - IPU3_UAPI_ISP_TNR3_VMEM_LEN];
__u16 sigma[IPU3_UAPI_ISP_TNR3_VMEM_LEN];
__u16 reserved2[IPU3_UAPI_ISP_VEC_ELEMS - IPU3_UAPI_ISP_TNR3_VMEM_LEN];
};
Members
slope
- slope setting in interpolation curve for temporal noise reduction.
reserved1
- reserved
sigma
- knee point setting in interpolation curve for temporal noise reduction.
reserved2
- reserved
-
struct
ipu3_uapi_isp_tnr3_params
¶ Temporal noise reduction v3 parameters
Definition
struct ipu3_uapi_isp_tnr3_params {
__u32 knee_y1;
__u32 knee_y2;
__u32 maxfb_y;
__u32 maxfb_u;
__u32 maxfb_v;
__u32 round_adj_y;
__u32 round_adj_u;
__u32 round_adj_v;
__u32 ref_buf_select;
};
Members
knee_y1
- Knee point TNR3 assumes standard deviation of Y,U and V at Y1 are TnrY1_Sigma_Y, U and V.
knee_y2
- Knee point TNR3 assumes standard deviation of Y,U and V at Y2 are TnrY2_Sigma_Y, U and V.
maxfb_y
- Max feedback gain for Y
maxfb_u
- Max feedback gain for U
maxfb_v
- Max feedback gain for V
round_adj_y
- rounding Adjust for Y
round_adj_u
- rounding Adjust for U
round_adj_v
- rounding Adjust for V
ref_buf_select
- selection of the reference frame buffer to be used.
-
struct
ipu3_uapi_isp_xnr3_vmem_params
¶ Extreme noise reduction v3 vector memory parameters
Definition
struct ipu3_uapi_isp_xnr3_vmem_params {
__u16 x[IPU3_UAPI_ISP_VEC_ELEMS];
__u16 a[IPU3_UAPI_ISP_VEC_ELEMS];
__u16 b[IPU3_UAPI_ISP_VEC_ELEMS];
__u16 c[IPU3_UAPI_ISP_VEC_ELEMS];
};
Members
x
- xnr3 parameters.
a
- xnr3 parameters.
b
- xnr3 parameters.
c
- xnr3 parameters.
-
struct
ipu3_uapi_xnr3_alpha_params
¶ Extreme noise reduction v3 alpha tuning parameters
Definition
struct ipu3_uapi_xnr3_alpha_params {
__u32 y0;
__u32 u0;
__u32 v0;
__u32 ydiff;
__u32 udiff;
__u32 vdiff;
};
Members
y0
- Sigma for Y range similarity in dark area.
u0
- Sigma for U range similarity in dark area.
v0
- Sigma for V range similarity in dark area.
ydiff
- Sigma difference for Y between bright area and dark area.
udiff
- Sigma difference for U between bright area and dark area.
vdiff
- Sigma difference for V between bright area and dark area.
-
struct
ipu3_uapi_xnr3_coring_params
¶ Extreme noise reduction v3 coring parameters
Definition
struct ipu3_uapi_xnr3_coring_params {
__u32 u0;
__u32 v0;
__u32 udiff;
__u32 vdiff;
};
Members
u0
- Coring Threshold of U channel in dark area.
v0
- Coring Threshold of V channel in dark area.
udiff
- Threshold difference of U channel between bright and dark area.
vdiff
- Threshold difference of V channel between bright and dark area.
-
struct
ipu3_uapi_xnr3_blending_params
¶ Blending factor
Definition
struct ipu3_uapi_xnr3_blending_params {
__u32 strength;
};
Members
strength
- The factor for blending output with input. This is tuning parameterHigher values lead to more aggressive XNR operation.
-
struct
ipu3_uapi_isp_xnr3_params
¶ Extreme noise reduction v3 parameters
Definition
struct ipu3_uapi_isp_xnr3_params {
struct ipu3_uapi_xnr3_alpha_params alpha;
struct ipu3_uapi_xnr3_coring_params coring;
struct ipu3_uapi_xnr3_blending_params blending;
};
Members
alpha
- parameters for xnr3 alpha. See
ipu3_uapi_xnr3_alpha_params
coring
- parameters for xnr3 coring. See
ipu3_uapi_xnr3_coring_params
blending
- parameters for xnr3 blending. See
ipu3_uapi_xnr3_blending_params
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struct
ipu3_uapi_obgrid_param
¶ Optical black level compensation parameters
Definition
struct ipu3_uapi_obgrid_param {
__u16 gr;
__u16 r;
__u16 b;
__u16 gb;
};
Members
gr
- Grid table values for color GR
r
- Grid table values for color R
b
- Grid table values for color B
gb
- Grid table values for color GB
Description
Black level is different for red, green, and blue channels. So black level compensation is different per channel.
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struct
ipu3_uapi_flags
¶ bits to indicate which pipeline needs update
Definition
struct ipu3_uapi_flags {
__u32 gdc:1;
__u32 obgrid:1;
__u32 reserved1:30;
__u32 acc_bnr:1;
__u32 acc_green_disparity:1;
__u32 acc_dm:1;
__u32 acc_ccm:1;
__u32 acc_gamma:1;
__u32 acc_csc:1;
__u32 acc_cds:1;
__u32 acc_shd:1;
__u32 reserved2:2;
__u32 acc_iefd:1;
__u32 acc_yds_c0:1;
__u32 acc_chnr_c0:1;
__u32 acc_y_ee_nr:1;
__u32 acc_yds:1;
__u32 acc_chnr:1;
__u32 acc_ytm:1;
__u32 acc_yds2:1;
__u32 acc_tcc:1;
__u32 acc_dpc:1;
__u32 acc_bds:1;
__u32 acc_anr:1;
__u32 acc_awb_fr:1;
__u32 acc_ae:1;
__u32 acc_af:1;
__u32 acc_awb:1;
__u32 reserved3:4;
__u32 lin_vmem_params:1;
__u32 tnr3_vmem_params:1;
__u32 xnr3_vmem_params:1;
__u32 tnr3_dmem_params:1;
__u32 xnr3_dmem_params:1;
__u32 reserved4:1;
__u32 obgrid_param:1;
__u32 reserved5:25;
};
Members
gdc
- 0 = no update, 1 = update.
obgrid
- 0 = no update, 1 = update.
reserved1
- Not used.
acc_bnr
- 0 = no update, 1 = update.
acc_green_disparity
- 0 = no update, 1 = update.
acc_dm
- 0 = no update, 1 = update.
acc_ccm
- 0 = no update, 1 = update.
acc_gamma
- 0 = no update, 1 = update.
acc_csc
- 0 = no update, 1 = update.
acc_cds
- 0 = no update, 1 = update.
acc_shd
- 0 = no update, 1 = update.
reserved2
- Not used.
acc_iefd
- 0 = no update, 1 = update.
acc_yds_c0
- 0 = no update, 1 = update.
acc_chnr_c0
- 0 = no update, 1 = update.
acc_y_ee_nr
- 0 = no update, 1 = update.
acc_yds
- 0 = no update, 1 = update.
acc_chnr
- 0 = no update, 1 = update.
acc_ytm
- 0 = no update, 1 = update.
acc_yds2
- 0 = no update, 1 = update.
acc_tcc
- 0 = no update, 1 = update.
acc_dpc
- 0 = no update, 1 = update.
acc_bds
- 0 = no update, 1 = update.
acc_anr
- 0 = no update, 1 = update.
acc_awb_fr
- 0 = no update, 1 = update.
acc_ae
- 0 = no update, 1 = update.
acc_af
- 0 = no update, 1 = update.
acc_awb
- 0 = no update, 1 = update.
reserved3
- Not used.
lin_vmem_params
- 0 = no update, 1 = update.
tnr3_vmem_params
- 0 = no update, 1 = update.
xnr3_vmem_params
- 0 = no update, 1 = update.
tnr3_dmem_params
- 0 = no update, 1 = update.
xnr3_dmem_params
- 0 = no update, 1 = update.
reserved4
- Not used.
obgrid_param
- 0 = no update, 1 = update.
reserved5
- Not used.
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struct
ipu3_uapi_params
¶ V4L2_META_FMT_IPU3_PARAMS
Definition
struct ipu3_uapi_params {
struct ipu3_uapi_flags use ;
struct ipu3_uapi_acc_param acc_param;
struct ipu3_uapi_isp_lin_vmem_params lin_vmem_params;
struct ipu3_uapi_isp_tnr3_vmem_params tnr3_vmem_params;
struct ipu3_uapi_isp_xnr3_vmem_params xnr3_vmem_params;
struct ipu3_uapi_isp_tnr3_params tnr3_dmem_params;
struct ipu3_uapi_isp_xnr3_params xnr3_dmem_params;
struct ipu3_uapi_obgrid_param obgrid_param;
};
Members
use
- select which parameters to apply, see
ipu3_uapi_flags
acc_param
- ACC parameters, as specified by
ipu3_uapi_acc_param
lin_vmem_params
- linearization VMEM, as specified by
ipu3_uapi_isp_lin_vmem_params
tnr3_vmem_params
- tnr3 VMEM as specified by
ipu3_uapi_isp_tnr3_vmem_params
xnr3_vmem_params
- xnr3 VMEM as specified by
ipu3_uapi_isp_xnr3_vmem_params
tnr3_dmem_params
- tnr3 DMEM as specified by
ipu3_uapi_isp_tnr3_params
xnr3_dmem_params
- xnr3 DMEM as specified by
ipu3_uapi_isp_xnr3_params
obgrid_param
- obgrid parameters as specified by
ipu3_uapi_obgrid_param
Description
The video queue "parameters" is of format V4L2_META_FMT_IPU3_PARAMS. This is a "single plane" v4l2_meta_format using V4L2_BUF_TYPE_META_OUTPUT.
struct ipu3_uapi_params as defined below contains a lot of parameters and ipu3_uapi_flags selects which parameters to apply.