pub struct Ncmdump<S>where
S: Read,{ /* private fields */ }
Expand description
The ncm file dump wrapper.
Implementations§
source§impl<S> Ncmdump<S>where
S: Read + Seek,
impl<S> Ncmdump<S>where S: Read + Seek,
sourcepub fn from_reader(reader: S) -> Result<Self, Errors>
pub fn from_reader(reader: S) -> Result<Self, Errors>
Create a Ncmdump from a seekable reader.
Usually, the reader is a File
or Cursor
.
Example
From a file.
let file = File::open("tests/test.ncm").expect("Can't open file");
let _ = Ncmdump::from_reader(file).unwrap();
Or from a Cursor.
let cursor = Cursor::new(data);
let _ = Ncmdump::from_reader(cursor).unwrap();
Examples found in repository?
examples/ncmdump.rs (line 14)
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fn main() -> Result<()> {
let file = File::open("tests/test.ncm")?;
let mut ncm = Ncmdump::from_reader(file)?;
let data = ncm.get_data()?;
let mut target = File::options()
.create(true)
.write(true)
.open("tests/test.flac")?;
target.write_all(&data)?;
Ok(())
}
More examples
examples/ncmdump_by_read.rs (line 15)
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fn main() -> Result<()> {
let file = File::open("tests/test.ncm")?;
let mut ncm = Ncmdump::from_reader(file)?;
let mut buf = [0; 1024];
let mut target = File::options()
.create(true)
.write(true)
.open("tests/test.flac")?;
while let Ok(size) = ncm.read(&mut buf) {
if size == 0 {
break;
}
target.write_all(&buf[..size])?;
}
Ok(())
}
sourcepub fn get_info(&mut self) -> Result<NcmInfo, Errors>
pub fn get_info(&mut self) -> Result<NcmInfo, Errors>
Decode the information buffer and just return the information.
Example
use std::fs::File;
use std::path::Path;
use anyhow::Result;
use ncmdump::Ncmdump;
fn main() -> Result<()> {
let file = File::open("tests/test.ncm")?;
let mut ncm = Ncmdump::from_reader(file)?;
let info = ncm.get_info();
println!("{:?}", info);
Ok(())
}
sourcepub fn get_image(&mut self) -> Result<Vec<u8>, Errors>
pub fn get_image(&mut self) -> Result<Vec<u8>, Errors>
Get the image bytes from ncmdump, if it’s exists.
Example:
use std::fs::File;
use std::path::Path;
use anyhow::Result;
use ncmdump::Ncmdump;
fn main() -> Result<()> {
use std::io::Write;
let file = File::open("tests/test.ncm")?;
let mut ncm = Ncmdump::from_reader(file)?;
let image = ncm.get_image()?;
let mut target = File::options()
.create(true)
.write(true)
.open("tests/test.jpeg")?;
target.write_all(&image)?;
Ok(())
}
sourcepub fn get_data(&mut self) -> Result<Vec<u8>, Errors>
pub fn get_data(&mut self) -> Result<Vec<u8>, Errors>
Get the music data from ncmdump.
Example:
use std::fs::File;
use std::io::Write;
use std::path::Path;
use anyhow::Result;
use ncmdump::Ncmdump;
fn main() -> Result<()> {
let file = File::open("tests/test.ncm")?;
let mut ncm = Ncmdump::from_reader(file)?;
let music = ncm.get_data()?;
let mut target = File::options()
.create(true)
.write(true)
.open("tests/test.flac")?;
target.write_all(&music)?;
Ok(())
}
Examples found in repository?
examples/ncmdump.rs (line 15)
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fn main() -> Result<()> {
let file = File::open("tests/test.ncm")?;
let mut ncm = Ncmdump::from_reader(file)?;
let data = ncm.get_data()?;
let mut target = File::options()
.create(true)
.write(true)
.open("tests/test.flac")?;
target.write_all(&data)?;
Ok(())
}
Trait Implementations§
source§impl<R> Read for Ncmdump<R>where
R: Read + Seek,
impl<R> Read for Ncmdump<R>where R: Read + Seek,
source§fn read(&mut self, buf: &mut [u8]) -> Result<usize>
fn read(&mut self, buf: &mut [u8]) -> Result<usize>
Pull some bytes from this source into the specified buffer, returning
how many bytes were read. Read more
1.36.0 · source§fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize, Error>
fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize, Error>
Like
read
, except that it reads into a slice of buffers. Read moresource§fn is_read_vectored(&self) -> bool
fn is_read_vectored(&self) -> bool
🔬This is a nightly-only experimental API. (
can_vector
)1.0.0 · source§fn read_to_end(&mut self, buf: &mut Vec<u8, Global>) -> Result<usize, Error>
fn read_to_end(&mut self, buf: &mut Vec<u8, Global>) -> Result<usize, Error>
Read all bytes until EOF in this source, placing them into
buf
. Read more1.0.0 · source§fn read_to_string(&mut self, buf: &mut String) -> Result<usize, Error>
fn read_to_string(&mut self, buf: &mut String) -> Result<usize, Error>
Read all bytes until EOF in this source, appending them to
buf
. Read more1.6.0 · source§fn read_exact(&mut self, buf: &mut [u8]) -> Result<(), Error>
fn read_exact(&mut self, buf: &mut [u8]) -> Result<(), Error>
Read the exact number of bytes required to fill
buf
. Read moresource§fn read_buf(&mut self, buf: BorrowedCursor<'_>) -> Result<(), Error>
fn read_buf(&mut self, buf: BorrowedCursor<'_>) -> Result<(), Error>
🔬This is a nightly-only experimental API. (
read_buf
)Pull some bytes from this source into the specified buffer. Read more
source§fn read_buf_exact(&mut self, cursor: BorrowedCursor<'_>) -> Result<(), Error>
fn read_buf_exact(&mut self, cursor: BorrowedCursor<'_>) -> Result<(), Error>
🔬This is a nightly-only experimental API. (
read_buf
)Read the exact number of bytes required to fill
cursor
. Read more1.0.0 · source§fn by_ref(&mut self) -> &mut Selfwhere
Self: Sized,
fn by_ref(&mut self) -> &mut Selfwhere Self: Sized,
Creates a “by reference” adaptor for this instance of
Read
. Read moresource§impl<R> Seek for Ncmdump<R>where
R: Read + Seek,
impl<R> Seek for Ncmdump<R>where R: Read + Seek,
source§fn seek(&mut self, pos: SeekFrom) -> Result<u64>
fn seek(&mut self, pos: SeekFrom) -> Result<u64>
Seek to an offset, in bytes, in a stream. Read more
1.55.0 · source§fn rewind(&mut self) -> Result<(), Error>
fn rewind(&mut self) -> Result<(), Error>
Rewind to the beginning of a stream. Read more
Auto Trait Implementations§
impl<S> RefUnwindSafe for Ncmdump<S>where S: RefUnwindSafe,
impl<S> Send for Ncmdump<S>where S: Send,
impl<S> Sync for Ncmdump<S>where S: Sync,
impl<S> Unpin for Ncmdump<S>where S: Unpin,
impl<S> UnwindSafe for Ncmdump<S>where S: UnwindSafe,
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more