Struct WebPDecoder

pub struct WebPDecoder<R> {
    inner: WebPDecoder<R>,
    orientation: Option<Orientation>,
}

WebP Image format decoder.

Supports both lossless and lossy WebP images.

Fields

inner: WebPDecoder<R>

orientation: Option<Orientation>

Implementations

impl<R: BufRead + Seek> WebPDecoder<R>

pub fn new(r: R) -> ImageResult<Self>

Create a new WebPDecoder from the Reader r.

pub fn has_animation(&self) -> bool

Returns true if the image as described by the bitstream is animated.

pub fn set_background_color(&mut self, color: Rgba<u8>) -> ImageResult<()>

Sets the background color if the image is an extended and animated webp.

Trait Implementations

impl<'a, R: 'a + BufRead + Seek> AnimationDecoder<'a> for WebPDecoder<R>

fn into_frames(self) -> Frames<'a>

Consume the decoder producing a series of frames.

impl<R: BufRead + Seek> ImageDecoder for WebPDecoder<R>

fn dimensions(&self) -> (u32, u32)

Returns a tuple containing the width and height of the image

fn color_type(&self) -> ColorType

Returns the color type of the image data produced by this decoder

fn read_image(self, buf: &mut [u8]) -> ImageResult<()>

Returns all the bytes in the image.

fn read_image_boxed(self: Box<Self>, buf: &mut [u8]) -> ImageResult<()>

Use read_image instead; this method is an implementation detail needed so the trait can be object safe.

fn icc_profile(&mut self) -> ImageResult<Option<Vec<u8>>>

Returns the ICC color profile embedded in the image, or Ok(None) if the image does not have one.

fn exif_metadata(&mut self) -> ImageResult<Option<Vec<u8>>>

Returns the raw Exif chunk, if it is present. A third-party crate such as kamadak-exif is required to actually parse it.

fn orientation(&mut self) -> ImageResult<Orientation>

Returns the orientation of the image.

fn original_color_type(&self) -> ExtendedColorType

Returns the color type of the image file before decoding

fn total_bytes(&self) -> u64

Returns the total number of bytes in the decoded image.

fn set_limits(&mut self, limits: Limits) -> ImageResult<()>

Set the decoder to have the specified limits. See Limits for the different kinds of limits that is possible to set.