Crate hpvcd

Structs§

Cicp: CICP encoding used for both HEIF colr (nclx) boxes and HEVC VUI.
CleanAperture: Clean aperture (spatial crop) from the ISOBMFF clap property (ISO 14496-12 §12.1.4.2).
ColorMetadata: Combined color metadata from a HEIF item.
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.
DecodedImage: A fully decoded HEIF/HEIC image.
DecodedYuv: Raw YCbCr planes from a HEIF/HEIC file; no color conversion applied.
Decoder: A configured, reusable HEIF/HEIC decoder.
ImageInfo: Lightweight, decode-free description of a HEIF/HEIC image.
Metadata: All optional metadata passed to the encoder, threaded through [crate::EncodeConfig].
ParseLimits: Limits enforced while parsing the HEIF container.
PixelAspectRatio: Pixel aspect ratio from the ISOBMFF pasp property (ISO 14496-12 §12.1.4.4).

BitDepth
ChromaFormat: Chroma subsampling mode.
DecodeError
ImageBuffer: Pixel buffer returned by crate::decode_heic.
MatrixCoefficients: CICP matrix coefficients for YCbCr ↔ RGB (ISO/IEC 23091-2 Table 4).
Orientation
Primaries
SampleBuf: A typed single-plane sample buffer — u8 for 8-bit, u16 for 10/12-bit.
TransferFunction: CICP transfer characteristics (ISO/IEC 23091-2 Table 3).

decode_heic: Decode a HEIF/HEIC file to display-ready pixels using a default Decoder.
decode_heic_rgb8: Decode to 8-bit-per-channel RGB Vec<u8> (always 3 bytes/pixel) using a default Decoder. Monochrome images are expanded to gray RGB. Zero-copy for 8-bit color sources.
decode_heic_yuv: Decode a HEIF/HEIC file and return raw YCbCr planes (no color conversion), using a default Decoder. For a display-ready 8-bit image use decode_heic_rgb8.
read_heic_info: Read image metadata from a HEIF/HEIC file without decoding pixels, using default crate::ParseLimits.
read_heic_info_with_limits: Read image metadata under caller-supplied parse limits.