Struct gif::reader::decoder::FrameDecoder

pub struct FrameDecoder {
    lzw_reader: LzwReader,
    pixel_converter: PixelConverter,
}

Decoder for Frame::make_lzw_pre_encoded

Fields

lzw_reader: LzwReader

pixel_converter: PixelConverter

Implementations

impl FrameDecoder

pub fn new(options: DecodeOptions) -> Self

See also set_global_palette

pub fn set_global_palette(&mut self, palette: Vec<u8>)

Palette used for RGBA conversion

pub fn decode_lzw_encoded_frame( &mut self, frame: &mut Frame<'_>, ) -> Result<(), DecodingError>

Converts the frame in-place, replacing its LZW buffer with pixels.

If you get an error about invalid min code size, the buffer was probably pixels, not compressed data.

pub fn decode_lzw_encoded_frame_into_buffer( &mut self, frame: &Frame<'_>, buf: &mut [u8], ) -> Result<(), DecodingError>

Converts into the given buffer. It must be [buffer_size()] bytes large.

Pixels are always deinterlaced, so update frame.interlaced afterwards if you’re putting the buffer back into the frame.

pub fn buffer_size(&self, frame: &Frame<'_>) -> usize

Number of bytes required for decode_lzw_encoded_frame_into_buffer