Trait dicom_encoding::decode::DecodeFrom [−][src]
pub trait DecodeFrom<S: ?Sized + Read> {
fn decode_header(
&self,
source: &mut S
) -> Result<(DataElementHeader, usize)>;
fn decode_item_header(&self, source: &mut S) -> Result<SequenceItemHeader>;
fn decode_tag(&self, source: &mut S) -> Result<Tag>;
}Expand description
Type trait for reading and decoding DICOM data elements from a specific source
- reader type.
- The specific behaviour of decoding, even when abstracted from the original source,
- may depend on the transfer syntax.
Required methods
fn decode_header(&self, source: &mut S) -> Result<(DataElementHeader, usize)>
fn decode_header(&self, source: &mut S) -> Result<(DataElementHeader, usize)>
Fetch and decode the next data element header from the given source.
* This method returns only the header of the element. At the end of this operation, the source
* will be pointing at the element’s value data, which should be read or skipped as necessary.
*
* Decoding an item or sequence delimiter is considered valid, and so should be properly handled
* by the decoder. The value representation in this case should be UN.
*
* Returns the expected header and the exact number of bytes read from the source.
fn decode_item_header(&self, source: &mut S) -> Result<SequenceItemHeader>
fn decode_item_header(&self, source: &mut S) -> Result<SequenceItemHeader>
Fetch and decode the next sequence item head from the given source. It is a separate method * because value representation is always implicit when reading item headers and delimiters. * This method returns only the header of the item. At the end of this operation, the source * will be pointing at the beginning of the item’s data, which should be traversed if necessary.
fn decode_tag(&self, source: &mut S) -> Result<Tag>
fn decode_tag(&self, source: &mut S) -> Result<Tag>
Decode a DICOM attribute tag from the given source.