Struct libheif_rs::HeifContext

pub struct HeifContext { /* fields omitted */ }

Implementations

impl HeifContext

pub fn new() -> Result<HeifContext>

Create a new empty context.

pub fn read_from_bytes(bytes: &[u8]) -> Result<HeifContext>

Create a new context from bytes.

pub fn read_from_file(name: &str) -> Result<HeifContext>

Create a new context from file.

pub fn read_from_reader(reader: Box<dyn Reader>) -> Result<HeifContext>

Create a new context from reader.

pub fn write_to_bytes(&self) -> Result<Vec<u8>>

pub fn write_to_file(&self, name: &str) -> Result<()>

pub fn number_of_top_level_images(&self) -> usize

pub fn top_level_image_ids(&self, item_ids: &mut [ItemId]) -> usize

pub fn image_handle(&self, item_id: ItemId) -> Result<ImageHandle<'_>>

pub fn primary_image_handle(&self) -> Result<ImageHandle<'_>>

pub fn encoder_for_format(&self, format: CompressionFormat) -> Result<Encoder>

pub fn encode_image(
    &mut self,
    image: &Image,
    encoder: &mut Encoder,
    encoding_options: Option<EncodingOptions>
) -> Result<ImageHandle<'_>>

Compress the input image. The first image added to the context is also automatically set the primary image, but you can change the primary image later with [set_primary_image] method. [set_primary_image]: #method.set_primary_image

pub fn set_primary_image(
    &mut self,
    image_handle: &mut ImageHandle<'_>
) -> Result<()>

Trait Implementations

impl Drop for HeifContext

fn drop(&mut self)

Executes the destructor for this type.

impl Send for HeifContext