Struct mozjpeg_sys::jpeg_compress_struct
source · #[repr(C)]pub struct jpeg_compress_struct {Show 37 fields
pub common: jpeg_common_struct,
pub dest: *mut jpeg_destination_mgr,
pub image_width: JDIMENSION,
pub image_height: JDIMENSION,
pub input_components: c_int,
pub in_color_space: J_COLOR_SPACE,
pub input_gamma: f64,
pub data_precision: c_int,
pub num_components: c_int,
pub jpeg_color_space: J_COLOR_SPACE,
pub comp_info: *mut jpeg_component_info,
pub quant_tbl_ptrs: [*mut JQUANT_TBL; 4],
pub dc_huff_tbl_ptrs: [*mut JHUFF_TBL; 4],
pub ac_huff_tbl_ptrs: [*mut JHUFF_TBL; 4],
pub arith_dc_L: [u8; 16],
pub arith_dc_U: [u8; 16],
pub arith_ac_K: [u8; 16],
pub num_scans: c_int,
pub scan_info: *const jpeg_scan_info,
pub raw_data_in: boolean,
pub arith_code: boolean,
pub optimize_coding: boolean,
pub CCIR601_sampling: boolean,
pub smoothing_factor: c_int,
pub dct_method: J_DCT_METHOD,
pub restart_interval: c_uint,
pub restart_in_rows: c_int,
pub write_JFIF_header: boolean,
pub JFIF_major_version: u8,
pub JFIF_minor_version: u8,
pub density_unit: u8,
pub X_density: u16,
pub Y_density: u16,
pub write_Adobe_marker: boolean,
pub next_scanline: JDIMENSION,
pub max_h_samp_factor: c_int,
pub max_v_samp_factor: c_int,
/* private fields */
}
Fields§
§common: jpeg_common_struct
§dest: *mut jpeg_destination_mgr
§image_width: JDIMENSION
Description of source image — these fields must be filled in by outer application before starting compression.
image_height: JDIMENSION
§input_components: c_int
§in_color_space: J_COLOR_SPACE
in_color_space
must be correct before you can even call jpeg_set_defaults()
.
input_gamma: f64
image gamma of input image
data_precision: c_int
bits of precision in image data
num_components: c_int
§jpeg_color_space: J_COLOR_SPACE
§comp_info: *mut jpeg_component_info
comp_info[i]
describes component that appears i’th in SOF
quant_tbl_ptrs: [*mut JQUANT_TBL; 4]
§dc_huff_tbl_ptrs: [*mut JHUFF_TBL; 4]
ptrs to coefficient quantization tables, or NULL if not defined, and corresponding scale factors (percentage, initialized 100).
ac_huff_tbl_ptrs: [*mut JHUFF_TBL; 4]
§arith_dc_L: [u8; 16]
§arith_dc_U: [u8; 16]
§arith_ac_K: [u8; 16]
§num_scans: c_int
§scan_info: *const jpeg_scan_info
§raw_data_in: boolean
TRUE=caller supplies downsampled data
arith_code: boolean
§optimize_coding: boolean
TRUE=optimize entropy encoding parms
CCIR601_sampling: boolean
§smoothing_factor: c_int
§dct_method: J_DCT_METHOD
§restart_interval: c_uint
MCUs per restart, or 0 for no restart
restart_in_rows: c_int
§write_JFIF_header: boolean
§JFIF_major_version: u8
§JFIF_minor_version: u8
§density_unit: u8
§X_density: u16
§Y_density: u16
§write_Adobe_marker: boolean
§next_scanline: JDIMENSION
§max_h_samp_factor: c_int
§max_v_samp_factor: c_int
Auto Trait Implementations§
impl Freeze for jpeg_compress_struct
impl RefUnwindSafe for jpeg_compress_struct
impl !Send for jpeg_compress_struct
impl !Sync for jpeg_compress_struct
impl Unpin for jpeg_compress_struct
impl UnwindSafe for jpeg_compress_struct
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more