Trait symphonia_core::io::SeekBuffered
source · pub trait SeekBuffered {
// Required methods
fn ensure_seekback_buffer(&mut self, len: usize);
fn unread_buffer_len(&self) -> usize;
fn read_buffer_len(&self) -> usize;
fn seek_buffered(&mut self, pos: u64) -> u64;
fn seek_buffered_rel(&mut self, delta: isize) -> u64;
// Provided method
fn seek_buffered_rev(&mut self, delta: usize) { ... }
}Expand description
SeekBuffered provides methods to seek within the buffered portion of a stream.
Required Methods§
sourcefn ensure_seekback_buffer(&mut self, len: usize)
fn ensure_seekback_buffer(&mut self, len: usize)
Ensures that len bytes will be available for backwards seeking if len bytes have been
previously read.
sourcefn unread_buffer_len(&self) -> usize
fn unread_buffer_len(&self) -> usize
Get the number of bytes buffered but not yet read.
Note: This is the maximum number of bytes that can be seeked forwards within the buffer.
sourcefn read_buffer_len(&self) -> usize
fn read_buffer_len(&self) -> usize
Gets the number of bytes buffered and read.
Note: This is the maximum number of bytes that can be seeked backwards within the buffer.
sourcefn seek_buffered(&mut self, pos: u64) -> u64
fn seek_buffered(&mut self, pos: u64) -> u64
Seek within the buffered data to an absolute position in the stream. Returns the position seeked to.
sourcefn seek_buffered_rel(&mut self, delta: isize) -> u64
fn seek_buffered_rel(&mut self, delta: isize) -> u64
Seek within the buffered data relative to the current position in the stream. Returns the position seeked to.
The range of delta is clamped to the inclusive range defined by
-read_buffer_len()..=unread_buffer_len().
Provided Methods§
sourcefn seek_buffered_rev(&mut self, delta: usize)
fn seek_buffered_rev(&mut self, delta: usize)
Seek backwards within the buffered data.
This function is identical to SeekBuffered::seek_buffered_rel when a negative delta is
provided.