Struct exr::block::reader::Reader

pub struct Reader<R> {
    meta_data: MetaData,
    remaining_reader: PeekRead<Tracking<R>>,
}

Decode the meta data from a byte source, keeping the source ready for further reading. Continue decoding the remaining bytes by calling filtered_chunks or all_chunks.

Fields

meta_data: MetaData

remaining_reader: PeekRead<Tracking<R>>

Implementations

impl<R: Read + Seek> Reader<R>

pub fn read_from_buffered(read: R, pedantic: bool) -> Result<Self>

Start the reading process. Immediately decodes the meta data into an internal field. Access it viameta_data().

pub fn meta_data(&self) -> &MetaData

The decoded exr meta data from the file.

pub fn headers(&self) -> &[Header]

The decoded exr meta data from the file.

pub fn into_meta_data(self) -> MetaData

Obtain the meta data ownership.

pub fn all_chunks(self, pedantic: bool) -> Result<AllChunksReader<R>>

Prepare to read all the chunks from the file. Does not decode the chunks now, but returns a decoder. Reading all chunks reduces seeking the file, but some chunks might be read without being used.

pub fn filter_chunks( self, pedantic: bool, filter: impl FnMut(&MetaData, TileCoordinates, BlockIndex) -> bool, ) -> Result<FilteredChunksReader<R>>

Prepare to read some the chunks from the file. Does not decode the chunks now, but returns a decoder. Reading only some chunks may seeking the file, potentially skipping many bytes.

Trait Implementations

impl<R: Debug> Debug for Reader<R>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.