Module png::common

Common types shared between the encoder and decoder

Structs

• AnimationControl
  Animation control information
• CodingIndependentCodePoints
  Coding-independent code points (cICP) specify the color space (primaries), transfer function, matrix coefficients and scaling factor of the image using the code points specified in ITU-T-H.273.
• ContentLightLevelInfo
  Content light level information of HDR content.
• FrameControl
  Frame control information
• Info
  PNG info struct
• MasteringDisplayColorVolume
  Mastering Display Color Volume (mDCV) used at the point of content creation, as specified in SMPTE-ST-2086.
• ParameterError
• PixelDimensions
  Pixel dimensions information
• ScaledFloat
  An unsigned integer scaled version of a floating point value, equivalent to an integer quotient with fixed denominator (100_000)).
• SourceChromaticities
  Chromaticities of the color space primaries
• Transformations
  Output transformations

Enums

• BitDepth
  Bit depth of the PNG file. Specifies the number of bits per sample.
• BlendOp
  How pixels are written into the buffer.
• BytesPerPixel 🔒
  Internal count of bytes per pixel. This is used for filtering which never uses sub-byte units. This essentially reduces the number of possible byte chunk lengths to a very small set of values appropriate to be defined as an enum.
• ColorType
  Describes how a pixel is encoded.
• Compression
  The type and strength of applied compression.
• DisposeOp
  How to reset buffer of an animated png (APNG) at the end of a frame.
• ParameterErrorKind 🔒
• SrgbRenderingIntent
  The rendering intent for an sRGB image.
• Unit
  Physical unit of the pixel dimensions