Struct BufferedIo 

pub struct BufferedIo { /* private fields */ }

Buffered I/O wrapper providing typed read/write operations. Wraps an IoContext and adds convenience methods for reading integers in specific byte orders.

Implementations

impl BufferedIo

pub fn new(inner: Box<dyn IoContext>) -> Self

pub fn take_inner(&mut self) -> Box<dyn IoContext>

Transfer ownership of the inner IoContext out of this BufferedIo. After this call, the BufferedIo is backed by a dead stub — all subsequent I/O operations will return errors.

pub fn read_exact(&mut self, buf: &mut [u8]) -> Result<()>

Read exactly buf.len() bytes into buf.

pub fn read_u8(&mut self) -> Result<u8>

Read a single byte.

pub fn read_u16le(&mut self) -> Result<u16>

Read a little-endian u16.

pub fn read_u16be(&mut self) -> Result<u16>

Read a big-endian u16.

pub fn read_u32le(&mut self) -> Result<u32>

Read a little-endian u32.

pub fn read_u32be(&mut self) -> Result<u32>

Read a big-endian u32.

pub fn read_i32le(&mut self) -> Result<i32>

Read a little-endian i32.

pub fn read_u64le(&mut self) -> Result<u64>

Read a little-endian u64.

pub fn read_u64be(&mut self) -> Result<u64>

Read a big-endian u64.

pub fn read_bytes(&mut self, len: usize) -> Result<Vec<u8>>

Read raw bytes of specified length.

pub fn read_up_to(&mut self, len: usize) -> Result<Vec<u8>>

Read up to len bytes, returning whatever is available. Returns empty Vec only at true EOF. Matches FFmpeg’s av_get_packet() behavior of returning partial data when less than len bytes remain.

pub fn skip(&mut self, n: u64) -> Result<()>

Skip n bytes forward.

pub fn seek(&mut self, pos: u64) -> Result<u64>

Seek to an absolute position.

pub fn tell(&mut self) -> Result<u64>

Get current position.

pub fn size(&mut self) -> Result<u64>

Get the total size of the underlying source.

pub fn is_seekable(&self) -> bool

Whether the underlying I/O is seekable.

pub fn write_u8(&mut self, v: u8) -> Result<()>

Write a single byte.

pub fn write_u16le(&mut self, v: u16) -> Result<()>

Write a little-endian u16.

pub fn write_u16be(&mut self, v: u16) -> Result<()>

Write a big-endian u16.

pub fn write_u32le(&mut self, v: u32) -> Result<()>

Write a little-endian u32.

pub fn write_u32be(&mut self, v: u32) -> Result<()>

Write a big-endian u32.

pub fn write_u64le(&mut self, v: u64) -> Result<()>

Write a little-endian u64.

pub fn write_bytes(&mut self, data: &[u8]) -> Result<()>

Write raw bytes.

pub fn write_all(&mut self, data: &[u8]) -> Result<()>

Write all bytes from the buffer.

pub fn flush(&mut self) -> Result<()>

Flush buffered write data to the underlying IoContext.