Struct WebPAuxStats

#[repr(C)]
pub struct WebPAuxStats {

    pub coded_size: c_int,
    pub PSNR: [c_float; 5],
    pub block_count: [c_int; 3],
    pub header_bytes: [c_int; 2],
    pub residual_bytes: [[c_int; 4]; 3],
    pub segment_size: [c_int; 4],
    pub segment_quant: [c_int; 4],
    pub segment_level: [c_int; 4],
    pub alpha_data_size: c_int,
    pub layer_data_size: c_int,
    pub lossless_features: u32,
    pub histogram_bits: c_int,
    pub transform_bits: c_int,
    pub cache_bits: c_int,
    pub palette_size: c_int,
    pub lossless_size: c_int,
    pub lossless_hdr_size: c_int,
    pub lossless_data_size: c_int,
    pub cross_color_transform_bits: c_int,
    /* private fields */
}

Structure for storing auxiliary statistics.

Fields

coded_size: c_int

final size

PSNR: [c_float; 5]

peak-signal-to-noise ratio for Y/U/V/All/Alpha

block_count: [c_int; 3]

number of intra4/intra16/skipped macroblocks

header_bytes: [c_int; 2]

approximate number of bytes spent for header and mode-partition #0

residual_bytes: [[c_int; 4]; 3]

approximate number of bytes spent for DC/AC/uv coefficients for each (0..3) segments.

segment_size: [c_int; 4]

number of macroblocks in each segments

segment_quant: [c_int; 4]

quantizer values for each segments

segment_level: [c_int; 4]

filtering strength for each segments [0..63]

alpha_data_size: c_int

size of the transparency data

layer_data_size: c_int

size of the enhancement layer data

lossless_features: u32

bit0:predictor bit1:cross-color transform bit2:subtract-green bit3:color indexing

histogram_bits: c_int

number of precision bits of histogram

transform_bits: c_int

precision bits for predictor transform

cache_bits: c_int

number of bits for color cache lookup

palette_size: c_int

number of color in palette, if used

lossless_size: c_int

final lossless size

lossless_hdr_size: c_int

Available on crate feature 0_5 only.

lossless header (transform, huffman etc) size

lossless_data_size: c_int

Available on crate feature 0_5 only.

lossless image data size

cross_color_transform_bits: c_int

Available on crate feature 1_5 only.

precision bits for cross-color transform

Trait Implementations

impl Clone for WebPAuxStats

fn clone(&self) -> WebPAuxStats

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for WebPAuxStats

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Copy for WebPAuxStats