pub struct GIFDecoder<R: Read> {
// some fields omitted
}A gif decoder
impl<R: Read> GIFDecoder<R>fn new(r: R) -> GIFDecoder<R>Creates a new GIF decoder
impl<R: Read> ImageDecoder for GIFDecoder<R>fn dimensions(&mut self) -> ImageResult<(u32, u32)>fn colortype(&mut self) -> ImageResult<ColorType>fn row_len(&mut self) -> ImageResult<usize>fn read_scanline(&mut self, _: &mut [u8]) -> ImageResult<u32>fn read_image(&mut self) -> ImageResult<DecodingResult>fn is_animated(&mut self) -> ImageResult<bool>fn into_frames(self) -> ImageResult<Frames>fn load_rect(&mut self, x: u32, y: u32, length: u32, width: u32) -> ImageResult<Vec<u8>>
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