Crate hpvca

Structs§

ColorEncoding: CICP-style colour encoding: the primaries + transfer + matrix the image is authored in, plus the sample range. Drives both the HEIF colr (nclx) box and the HEVC VUI signalling.
ContentLightLevel: HDR content light level (CTA-861.3 / ISOBMFF clli): the maximum content light level (MaxCLL) and maximum frame-average light level (MaxFALL), both in cd/m² (nits). Written as the ContentLightLevelBox.
EncodeConfig: Encoder configuration. Build with EncodeConfig::new and the with_* methods, then pass to encode / encode_with_alpha / encode_yuv.
Metadata: All optional metadata passed to the encoder, threaded through crate::EncodeConfig.
Yuv: Planar YCbCr image

BitDepth
ChromaFormat: Chroma subsampling mode.
ColorMetadata: How the output colour space is described in the file. Either an enumerated CICP encoding (compact nclx) or an embedded ICC profile (prof).
EncodeError
MatrixCoefficients: CICP matrix coefficients for RGB→YCbCr (ISO/IEC 23091-2 Table 4).
Orientation
PixelLayout
Primaries: CICP colour primaries (ISO/IEC 23091-2 Table 2).
TransferFunction: CICP transfer characteristics (ISO/IEC 23091-2 Table 3).

encode: Encode a native-depth planar pixel buffer to HEIC using cfg.
encode_heic: Encode a packed 8-bit RGB image to HEIC (4:2:0, 8-bit, sRGB ICC).
encode_heic_fmt: Encode a packed 8-bit RGB image to HEIC with an explicit chroma format.
encode_heic_fmt_bd: Encode a native-depth u16 RGB image to HEIC with explicit chroma and bit depth.
encode_heic_gray_alpha: Encode a packed 8-bit grayscale + alpha image to HEIC with a separate alpha auxiliary image. ya must hold exactly width * height * 2 bytes in Y, A order.
encode_heic_gray_alpha_bd: Encode a native-depth u16 grayscale + alpha image to HEIC at an explicit bit depth. ya must hold exactly width * height * 2 samples in Y, A order at bit_depth’s native range.
encode_heic_with_alpha: Encode a packed 8-bit RGBA image to HEIC with a separate alpha auxiliary image (4:2:0, 8-bit).
encode_heic_with_alpha_bd: Encode a native-depth u16 RGBA image to HEIC with a separate alpha auxiliary image at an explicit bit depth.
encode_with_alpha: Encode a native-depth RGBA pixel buffer to HEIC, preserving the alpha channel as a separate monochrome auxiliary image per ISO/IEC 23008-12.
encode_yuv: Encode pre-converted planar YCbCr directly, skipping the RGB→YCbCr step.