j2k-transcode 0.6.1

JPEG to J2K and HTJ2K transcode primitives for j2k
Documentation 
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// SPDX-License-Identifier: Apache-2.0

#![allow(dead_code)]

//! Fixture JPEGs for decode integration tests. Inputs are committed under
//! `corpus/conformance/` and embedded via `include_bytes!` so tests remain
//! hermetic (no filesystem dependency at run time).

/// A 16×16 baseline JPEG with 4:2:0 sampling.
pub(crate) fn minimal_baseline_420_jpeg() -> Vec<u8> {
    j2k_test_support::jpeg_baseline_420_16x16()
}

/// An 8×8 grayscale (single-component) baseline JPEG.
pub(crate) fn grayscale_8x8_jpeg() -> Vec<u8> {
    j2k_test_support::jpeg_grayscale_8x8()
}

/// An 8×8 baseline JPEG with 4:4:4 sampling.
pub(crate) fn baseline_444_8x8_jpeg() -> Vec<u8> {
    j2k_test_support::jpeg_baseline_444_8x8()
}

/// Reference pixels for [`baseline_444_8x8_jpeg`].
pub(crate) fn baseline_444_8x8_rgb() -> Vec<u8> {
    j2k_test_support::jpeg_baseline_444_8x8_rgb()
}

/// A 16×8 baseline JPEG with 4:2:2 sampling.
pub(crate) fn baseline_422_16x8_jpeg() -> Vec<u8> {
    j2k_test_support::jpeg_baseline_422_16x8()
}

/// Reference pixels for [`baseline_422_16x8_jpeg`].
pub(crate) fn baseline_422_16x8_rgb() -> Vec<u8> {
    j2k_test_support::jpeg_baseline_422_16x8_rgb()
}

/// A 32×16 baseline JPEG with 4:2:0 sampling and restart coding.
pub(crate) fn baseline_420_restart_32x16_jpeg() -> Vec<u8> {
    j2k_test_support::jpeg_baseline_420_restart_32x16()
}

/// Reference pixels for [`baseline_420_restart_32x16_jpeg`].
pub(crate) fn baseline_420_restart_32x16_rgb() -> Vec<u8> {
    j2k_test_support::jpeg_baseline_420_restart_32x16_rgb()
}

/// An 8×8 APP14 RGB JPEG with constant pixel value `(200, 20, 10)`.
pub(crate) fn rgb_app14_8x8_jpeg() -> Vec<u8> {
    vec![
        0xff, 0xd8, 0xff, 0xee, 0x00, 0x0e, 0x41, 0x64, 0x6f, 0x62, 0x65, 0x00, 0x64, 0x00, 0x00,
        0x00, 0x00, 0x00, 0xff, 0xdb, 0x00, 0x43, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
        0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
        0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
        0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
        0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0xff, 0xc0, 0x00,
        0x11, 0x08, 0x00, 0x08, 0x00, 0x08, 0x03, 0x52, 0x11, 0x00, 0x47, 0x11, 0x00, 0x42, 0x11,
        0x00, 0xff, 0xc4, 0x00, 0x1f, 0x00, 0x00, 0x01, 0x05, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
        0x08, 0x09, 0x0a, 0x0b, 0xff, 0xc4, 0x00, 0xb5, 0x10, 0x00, 0x02, 0x01, 0x03, 0x03, 0x02,
        0x04, 0x03, 0x05, 0x05, 0x04, 0x04, 0x00, 0x00, 0x01, 0x7d, 0x01, 0x02, 0x03, 0x00, 0x04,
        0x11, 0x05, 0x12, 0x21, 0x31, 0x41, 0x06, 0x13, 0x51, 0x61, 0x07, 0x22, 0x71, 0x14, 0x32,
        0x81, 0x91, 0xa1, 0x08, 0x23, 0x42, 0xb1, 0xc1, 0x15, 0x52, 0xd1, 0xf0, 0x24, 0x33, 0x62,
        0x72, 0x82, 0x09, 0x0a, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a,
        0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a,
        0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69,
        0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88,
        0x89, 0x8a, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5,
        0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xc2,
        0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8,
        0xd9, 0xda, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, 0xf1, 0xf2, 0xf3,
        0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0xff, 0xda, 0x00, 0x0c, 0x03, 0x52, 0x00, 0x47,
        0x00, 0x42, 0x00, 0x00, 0x3f, 0x00, 0xfe, 0x90, 0x2b, 0xf8, 0x9f, 0xaf, 0xe1, 0x3e, 0xbf,
        0xff, 0xd9,
    ]
}

/// Reference pixels for [`rgb_app14_8x8_jpeg`].
pub(crate) fn rgb_app14_8x8_rgb() -> Vec<u8> {
    let mut out = Vec::with_capacity(8 * 8 * 3);
    for _ in 0..64 {
        out.extend_from_slice(&[200, 20, 10]);
    }
    out
}

/// A progressive 8×8 JPEG with 10 SOS markers.
pub(crate) fn progressive_8x8_jpeg() -> Vec<u8> {
    vec![
        0xff, 0xd8, 0xff, 0xe0, 0x00, 0x10, 0x4a, 0x46, 0x49, 0x46, 0x00, 0x01, 0x01, 0x00, 0x00,
        0x01, 0x00, 0x01, 0x00, 0x00, 0xff, 0xdb, 0x00, 0x43, 0x00, 0x03, 0x02, 0x02, 0x03, 0x02,
        0x02, 0x03, 0x03, 0x03, 0x03, 0x04, 0x03, 0x03, 0x04, 0x05, 0x08, 0x05, 0x05, 0x04, 0x04,
        0x05, 0x0a, 0x07, 0x07, 0x06, 0x08, 0x0c, 0x0a, 0x0c, 0x0c, 0x0b, 0x0a, 0x0b, 0x0b, 0x0d,
        0x0e, 0x12, 0x10, 0x0d, 0x0e, 0x11, 0x0e, 0x0b, 0x0b, 0x10, 0x16, 0x10, 0x11, 0x13, 0x14,
        0x15, 0x15, 0x15, 0x0c, 0x0f, 0x17, 0x18, 0x16, 0x14, 0x18, 0x12, 0x14, 0x15, 0x14, 0xff,
        0xdb, 0x00, 0x43, 0x01, 0x03, 0x04, 0x04, 0x05, 0x04, 0x05, 0x09, 0x05, 0x05, 0x09, 0x14,
        0x0d, 0x0b, 0x0d, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14,
        0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14,
        0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14,
        0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0xff, 0xc2, 0x00, 0x11, 0x08, 0x00, 0x08,
        0x00, 0x08, 0x03, 0x01, 0x22, 0x00, 0x02, 0x11, 0x01, 0x03, 0x11, 0x01, 0xff, 0xc4, 0x00,
        0x15, 0x00, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x06, 0xff, 0xc4, 0x00, 0x15, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x06, 0xff, 0xda,
        0x00, 0x0c, 0x03, 0x01, 0x00, 0x02, 0x10, 0x03, 0x10, 0x00, 0x00, 0x01, 0x88, 0x13, 0x6f,
        0x7f, 0xff, 0xc4, 0x00, 0x14, 0x10, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xda, 0x00, 0x08, 0x01, 0x01,
        0x00, 0x01, 0x05, 0x02, 0x7f, 0xff, 0xc4, 0x00, 0x14, 0x11, 0x01, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xda, 0x00,
        0x08, 0x01, 0x03, 0x01, 0x01, 0x3f, 0x01, 0x7f, 0xff, 0xc4, 0x00, 0x14, 0x11, 0x01, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0xff, 0xda, 0x00, 0x08, 0x01, 0x02, 0x01, 0x01, 0x3f, 0x01, 0x7f, 0xff, 0xc4, 0x00, 0x14,
        0x10, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0xff, 0xda, 0x00, 0x08, 0x01, 0x01, 0x00, 0x06, 0x3f, 0x02, 0x7f, 0xff,
        0xc4, 0x00, 0x14, 0x10, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xda, 0x00, 0x08, 0x01, 0x01, 0x00, 0x01, 0x3f,
        0x21, 0x7f, 0xff, 0xda, 0x00, 0x0c, 0x03, 0x01, 0x00, 0x02, 0x00, 0x03, 0x00, 0x00, 0x00,
        0x10, 0xf7, 0xff, 0xc4, 0x00, 0x14, 0x11, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xda, 0x00, 0x08, 0x01, 0x03,
        0x01, 0x01, 0x3f, 0x10, 0x7f, 0xff, 0xc4, 0x00, 0x14, 0x11, 0x01, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xda, 0x00,
        0x08, 0x01, 0x02, 0x01, 0x01, 0x3f, 0x10, 0x7f, 0xff, 0xc4, 0x00, 0x14, 0x10, 0x01, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0xff, 0xda, 0x00, 0x08, 0x01, 0x01, 0x00, 0x01, 0x3f, 0x10, 0x7f, 0xff, 0xd9,
    ]
}