Split lib.rs into modules
This commit is contained in:
parent
8652b455be
commit
1a029d44a4
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@ -0,0 +1,84 @@
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use std::fmt;
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#[derive(Debug)]
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pub struct NrgCuex {
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pub size: u32,
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pub tracks: Vec<NrgCuexTrack>,
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}
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impl NrgCuex {
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pub fn new() -> NrgCuex {
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NrgCuex {
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size: 0,
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tracks: Vec::new(),
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}
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}
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}
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impl fmt::Display for NrgCuex {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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try!(write!(f, "Chunk ID: CUEX\n\
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Chunk description: Cue Sheet\n\
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Chunk size: {} Bytes", self.size));
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if self.tracks.is_empty() {
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try!(write!(f, "\nNo CUEX tracks!"));
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} else {
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for track in &self.tracks {
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try!(write!(f, "\n\
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Track:\n\
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{}", track));
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}
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}
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Ok(())
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}
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}
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#[derive(Debug)]
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pub struct NrgCuexTrack {
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pub mode: u8,
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pub track_number: u8,
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pub index_number: u8,
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pub padding: u8,
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pub position_sectors: i32,
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}
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impl NrgCuexTrack {
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pub fn new() -> NrgCuexTrack {
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NrgCuexTrack {
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mode: 0,
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track_number: 0,
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index_number: 0,
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padding: 0,
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position_sectors: 0,
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}
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}
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}
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impl fmt::Display for NrgCuexTrack {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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try!(writeln!(f, "\tMode: 0x{:02X}", self.mode));
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try!(write!(f, "\tTrack number: "));
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if self.track_number == 0 {
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try!(writeln!(f, "0 (lead-in area)"));
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} else if self.track_number == 0xAA {
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try!(writeln!(f, "0xAA (lead-out area)"));
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} else {
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try!(writeln!(f, "{}", self.track_number));
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}
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try!(writeln!(f, "\tIndex number: {}", self.index_number));
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if self.padding != 0 {
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try!(writeln!(f, "\tPadding: {} (Warning: should be 0!)",
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self.padding));
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}
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// Audio CDs are played at a 75 sectors per second rate:
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let position_seconds: f64 = (self.position_sectors as f64) / 75.0;
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write!(f, "\tPosition: {} sectors ({:.2} seconds)",
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self.position_sectors, position_seconds)
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}
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}
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@ -0,0 +1,118 @@
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use std::fmt;
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#[derive(Debug)]
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pub struct NrgDaox {
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pub size: u32,
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pub size2: u32,
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pub upc: String,
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pub padding: u8,
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pub toc_type: u16,
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pub first_track: u8,
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pub last_track: u8,
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pub tracks: Vec<NrgDaoxTrack>,
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}
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impl NrgDaox {
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pub fn new() -> NrgDaox {
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NrgDaox {
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size: 0,
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size2: 0,
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upc: String::new(),
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padding: 0,
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toc_type: 0,
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first_track: 0,
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last_track: 0,
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tracks: Vec::new(),
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}
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}
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}
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impl fmt::Display for NrgDaox {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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try!(writeln!(f, "Chunk ID: DAOX\n\
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Chunk description: DAO (Disc At Once) Information\n\
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Chunk size: {} Bytes\n\
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Chunk size 2: {}\n\
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UPC: \"{}\"",
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self.size,
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self.size2,
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self.upc));
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if self.padding != 0 {
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try!(writeln!(f, "Padding: {} (Warning: should be 0!)",
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self.padding));
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}
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try!(write!(f, "TOC type: 0x{:04X}\n\
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First track in the session: {}\n\
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Last track in the session: {}",
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self.toc_type,
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self.first_track,
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self.last_track));
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if self.tracks.is_empty() {
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try!(write!(f, "\nNo DAOX tracks!"));
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} else {
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let mut i = 1;
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for track in &self.tracks {
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try!(write!(f, "\n\
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Track {:02}:\n\
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{}", i, track));
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i += 1;
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}
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}
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Ok(())
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}
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}
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#[derive(Debug)]
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pub struct NrgDaoxTrack {
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pub isrc: String,
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pub sector_size: u16,
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pub data_mode: u16,
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pub unknown: u16,
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pub index0: u64,
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pub index1: u64,
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pub track_end: u64,
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}
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impl NrgDaoxTrack {
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pub fn new() -> NrgDaoxTrack {
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NrgDaoxTrack {
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isrc: String::new(),
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sector_size: 0,
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data_mode: 0,
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unknown: 0,
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index0: 0,
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index1: 0,
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track_end: 0,
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}
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}
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}
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impl fmt::Display for NrgDaoxTrack {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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try!(writeln!(f, "\tISRC: \"{}\"\n\
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\tSector size in the image file: {} Bytes\n\
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\tMode of the data in the image file: 0x{:04X}",
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self.isrc,
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self.sector_size,
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self.data_mode));
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if self.unknown != 0x0001 {
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try!(writeln!(f, "\tUnknown field: 0x{:04X} \
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(Warning: should be 0x0001!)",
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self.unknown));
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}
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write!(f, "\tIndex0 (Pre-gap): {} Bytes\n\
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\tIndex1 (Start of track): {} Bytes\n\
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\tEnd of track + 1: {} Bytes",
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self.index0,
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self.index1,
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self.track_end)
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}
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}
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@ -0,0 +1,49 @@
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use std::error::Error;
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use std::fmt;
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use std::io;
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#[derive(Debug)]
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pub enum NrgError {
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Io(io::Error),
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NrgFormat,
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NrgFormatV1,
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NrgChunkId,
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}
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impl fmt::Display for NrgError {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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match *self {
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NrgError::Io(ref err) => err.fmt(f),
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NrgError::NrgFormat => write!(f, "NRG format unknown."),
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NrgError::NrgFormatV1 => write!(f, "NRG v1 format is not handled."),
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NrgError::NrgChunkId => write!(f, "NRG chunk ID unknown."),
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}
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}
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}
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impl Error for NrgError {
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fn description(&self) -> &str {
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match *self {
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NrgError::Io(ref err) => err.description(),
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NrgError::NrgFormat => "NRG format",
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NrgError::NrgFormatV1 => "NRG format v1",
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NrgError::NrgChunkId => "NRG chunk ID",
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}
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}
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fn cause(&self) -> Option<&Error> {
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match *self {
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NrgError::Io(ref err) => Some(err),
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NrgError::NrgFormat => None,
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NrgError::NrgFormatV1 => None,
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NrgError::NrgChunkId => None,
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}
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}
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}
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impl From<io::Error> for NrgError {
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fn from(err: io::Error) -> NrgError {
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NrgError::Io(err)
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}
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}
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424
src/lib.rs
424
src/lib.rs
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@ -1,367 +1,26 @@
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use std::error::Error;
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use std::fmt;
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use std::fs::File;
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use std::io::{self, Read, Seek, SeekFrom};
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use std::mem;
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use std::io::{Seek, SeekFrom};
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mod error;
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use error::NrgError;
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#[derive(Debug)]
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pub enum NrgError {
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Io(io::Error),
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NrgFormat,
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NrgFormatV1,
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NrgChunkId,
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}
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mod metadata;
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use metadata::NrgMetadata;
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impl fmt::Display for NrgError {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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match *self {
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NrgError::Io(ref err) => err.fmt(f),
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NrgError::NrgFormat => write!(f, "NRG format unknown."),
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NrgError::NrgFormatV1 => write!(f, "NRG v1 format is not handled."),
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NrgError::NrgChunkId => write!(f, "NRG chunk ID unknown."),
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}
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}
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}
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mod cuex;
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use cuex::{NrgCuex, NrgCuexTrack};
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impl Error for NrgError {
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fn description(&self) -> &str {
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match *self {
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NrgError::Io(ref err) => err.description(),
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NrgError::NrgFormat => "NRG format",
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NrgError::NrgFormatV1 => "NRG format v1",
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NrgError::NrgChunkId => "NRG chunk ID",
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}
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}
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mod daox;
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use daox::{NrgDaox, NrgDaoxTrack};
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fn cause(&self) -> Option<&Error> {
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match *self {
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NrgError::Io(ref err) => Some(err),
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NrgError::NrgFormat => None,
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NrgError::NrgFormatV1 => None,
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NrgError::NrgChunkId => None,
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}
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}
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}
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mod sinf;
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use sinf::{NrgSinf};
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impl From<io::Error> for NrgError {
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fn from(err: io::Error) -> NrgError {
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NrgError::Io(err)
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}
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}
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mod mtyp;
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use mtyp::{NrgMtyp};
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#[derive(Debug)]
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pub struct NrgMetadata {
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pub file_size: u64,
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pub nrg_version: u8,
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pub chunk_offset: u64,
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pub cuex_chunk: Option<NrgCuex>,
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pub daox_chunk: Option<NrgDaox>,
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pub sinf_chunk: Option<NrgSinf>,
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pub mtyp_chunk: Option<NrgMtyp>,
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}
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impl NrgMetadata {
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fn new() -> NrgMetadata {
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NrgMetadata {
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file_size: 0,
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nrg_version: 0,
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chunk_offset: 0,
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cuex_chunk: None,
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daox_chunk: None,
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sinf_chunk: None,
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mtyp_chunk: None,
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}
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}
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}
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impl fmt::Display for NrgMetadata {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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try!(write!(f, "Image size: {} Bytes\n\
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NRG format version: {}\n\
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First chunk offset: {}",
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self.file_size,
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self.nrg_version,
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self.chunk_offset,
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));
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match self.cuex_chunk {
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None => {},
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Some(ref chunk) => try!(write!(f, "\n\n\
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{}", chunk)),
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}
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match self.daox_chunk {
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None => {},
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Some(ref chunk) => try!(write!(f, "\n\n\
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{}", chunk)),
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}
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match self.sinf_chunk {
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None => {},
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Some(ref chunk) => try!(write!(f, "\n\n\
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{}", chunk)),
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}
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match self.mtyp_chunk {
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None => {},
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Some(ref chunk) => try!(write!(f, "\n\n\
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{}", chunk)),
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}
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Ok(())
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}
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}
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#[derive(Debug)]
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pub struct NrgCuex {
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pub size: u32,
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pub tracks: Vec<NrgCuexTrack>,
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}
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impl NrgCuex {
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fn new() -> NrgCuex {
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NrgCuex {
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size: 0,
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tracks: Vec::new(),
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}
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}
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}
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impl fmt::Display for NrgCuex {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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try!(write!(f, "Chunk ID: CUEX\n\
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Chunk description: Cue Sheet\n\
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Chunk size: {} Bytes", self.size));
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if self.tracks.is_empty() {
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try!(write!(f, "\nNo CUEX tracks!"));
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} else {
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for track in &self.tracks {
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try!(write!(f, "\n\
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Track:\n\
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{}", track));
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}
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}
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Ok(())
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}
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}
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#[derive(Debug)]
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pub struct NrgCuexTrack {
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mode: u8,
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track_number: u8,
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index_number: u8,
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padding: u8,
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position_sectors: i32,
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}
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impl NrgCuexTrack {
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fn new() -> NrgCuexTrack {
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NrgCuexTrack {
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mode: 0,
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track_number: 0,
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index_number: 0,
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padding: 0,
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position_sectors: 0,
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}
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}
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}
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impl fmt::Display for NrgCuexTrack {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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try!(writeln!(f, "\tMode: 0x{:02X}", self.mode));
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try!(write!(f, "\tTrack number: "));
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if self.track_number == 0 {
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try!(writeln!(f, "0 (lead-in area)"));
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} else if self.track_number == 0xAA {
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try!(writeln!(f, "0xAA (lead-out area)"));
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} else {
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try!(writeln!(f, "{}", self.track_number));
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}
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try!(writeln!(f, "\tIndex number: {}", self.index_number));
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if self.padding != 0 {
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try!(writeln!(f, "\tPadding: {} (Warning: should be 0!)",
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self.padding));
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}
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|
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// Audio CDs are played at a 75 sectors per second rate:
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let position_seconds: f64 = (self.position_sectors as f64) / 75.0;
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write!(f, "\tPosition: {} sectors ({:.2} seconds)",
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self.position_sectors, position_seconds)
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}
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}
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#[derive(Debug)]
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pub struct NrgDaox {
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pub size: u32,
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pub size2: u32,
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pub upc: String,
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pub padding: u8,
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pub toc_type: u16,
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pub first_track: u8,
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pub last_track: u8,
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pub tracks: Vec<NrgDaoxTrack>,
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}
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impl NrgDaox {
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fn new() -> NrgDaox {
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NrgDaox {
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size: 0,
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size2: 0,
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upc: String::new(),
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padding: 0,
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toc_type: 0,
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first_track: 0,
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last_track: 0,
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tracks: Vec::new(),
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}
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}
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}
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impl fmt::Display for NrgDaox {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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try!(writeln!(f, "Chunk ID: DAOX\n\
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Chunk description: DAO (Disc At Once) Information\n\
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Chunk size: {} Bytes\n\
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Chunk size 2: {}\n\
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UPC: \"{}\"",
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self.size,
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self.size2,
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self.upc));
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|
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if self.padding != 0 {
|
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try!(writeln!(f, "Padding: {} (Warning: should be 0!)",
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self.padding));
|
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}
|
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|
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try!(write!(f, "TOC type: 0x{:04X}\n\
|
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First track in the session: {}\n\
|
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Last track in the session: {}",
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self.toc_type,
|
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self.first_track,
|
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self.last_track));
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|
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if self.tracks.is_empty() {
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try!(write!(f, "\nNo DAOX tracks!"));
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} else {
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let mut i = 1;
|
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for track in &self.tracks {
|
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try!(write!(f, "\n\
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Track {:02}:\n\
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{}", i, track));
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i += 1;
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}
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}
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|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct NrgDaoxTrack {
|
||||
isrc: String,
|
||||
sector_size: u16,
|
||||
data_mode: u16,
|
||||
unknown: u16,
|
||||
index0: u64,
|
||||
index1: u64,
|
||||
track_end: u64,
|
||||
}
|
||||
|
||||
impl NrgDaoxTrack {
|
||||
fn new() -> NrgDaoxTrack {
|
||||
NrgDaoxTrack {
|
||||
isrc: String::new(),
|
||||
sector_size: 0,
|
||||
data_mode: 0,
|
||||
unknown: 0,
|
||||
index0: 0,
|
||||
index1: 0,
|
||||
track_end: 0,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl fmt::Display for NrgDaoxTrack {
|
||||
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||
try!(writeln!(f, "\tISRC: \"{}\"\n\
|
||||
\tSector size in the image file: {} Bytes\n\
|
||||
\tMode of the data in the image file: 0x{:04X}",
|
||||
self.isrc,
|
||||
self.sector_size,
|
||||
self.data_mode));
|
||||
|
||||
if self.unknown != 0x0001 {
|
||||
try!(writeln!(f, "\tUnknown field: 0x{:04X} \
|
||||
(Warning: should be 0x0001!)",
|
||||
self.unknown));
|
||||
}
|
||||
|
||||
write!(f, "\tIndex0 (Pre-gap): {} Bytes\n\
|
||||
\tIndex1 (Start of track): {} Bytes\n\
|
||||
\tEnd of track + 1: {} Bytes",
|
||||
self.index0,
|
||||
self.index1,
|
||||
self.track_end)
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct NrgSinf {
|
||||
pub size: u32,
|
||||
pub nb_tracks: u32,
|
||||
}
|
||||
|
||||
impl NrgSinf {
|
||||
fn new() -> NrgSinf {
|
||||
NrgSinf {
|
||||
size: 0,
|
||||
nb_tracks: 0,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl fmt::Display for NrgSinf {
|
||||
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||
write!(f, "Chunk ID: SINF\n\
|
||||
Chunk description: Session Information\n\
|
||||
Chunk size: {} Bytes\n\
|
||||
Number of tracks in the session: {}",
|
||||
self.size,
|
||||
self.nb_tracks)
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct NrgMtyp {
|
||||
pub size: u32,
|
||||
pub unknown: u32,
|
||||
}
|
||||
|
||||
impl NrgMtyp {
|
||||
fn new() -> NrgMtyp {
|
||||
NrgMtyp {
|
||||
size: 0,
|
||||
unknown: 0,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl fmt::Display for NrgMtyp {
|
||||
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||
write!(f, "Chunk ID: MTYP\n\
|
||||
Chunk description: Media Type (?)\n\
|
||||
Chunk size: {} Bytes\n\
|
||||
Unknown field: 0x{:04X}",
|
||||
self.size,
|
||||
self.unknown)
|
||||
}
|
||||
}
|
||||
mod readers;
|
||||
use readers::*;
|
||||
|
||||
|
||||
pub fn parse_nrg_metadata(img_name: String) -> Result<NrgMetadata, NrgError> {
|
||||
|
|
@ -454,59 +113,6 @@ fn read_nrg_chunk_id(fd: &File) -> Result<String, NrgError> {
|
|||
}
|
||||
|
||||
|
||||
/// Reads a String of size `size` from `fd`.
|
||||
fn read_sized_string(fd: &File, size: u64) -> Result<String, NrgError> {
|
||||
let mut handle = fd.take(size);
|
||||
let mut string = String::new();
|
||||
try!(handle.read_to_string(&mut string));
|
||||
Ok(string)
|
||||
}
|
||||
|
||||
|
||||
/// Reads a 64-bit unsigned integer from `fd`.
|
||||
fn read_u64(fd: &mut File) -> Result<u64, NrgError> {
|
||||
let mut buf = [0u8; 8];
|
||||
try!(fd.read_exact(&mut buf));
|
||||
let i: u64;
|
||||
unsafe {
|
||||
i = mem::transmute(buf);
|
||||
}
|
||||
Ok(u64::from_be(i))
|
||||
}
|
||||
|
||||
|
||||
/// Reads a 32-bit unsigned integer from `fd`.
|
||||
fn read_u32(fd: &mut File) -> Result<u32, NrgError> {
|
||||
let mut buf = [0u8; 4];
|
||||
try!(fd.read_exact(&mut buf));
|
||||
let i: u32;
|
||||
unsafe {
|
||||
i = mem::transmute(buf);
|
||||
}
|
||||
Ok(u32::from_be(i))
|
||||
}
|
||||
|
||||
|
||||
/// Reads a 16-bit unsigned integer from `fd`.
|
||||
fn read_u16(fd: &mut File) -> Result<u16, NrgError> {
|
||||
let mut buf = [0u8; 2];
|
||||
try!(fd.read_exact(&mut buf));
|
||||
let i: u16;
|
||||
unsafe {
|
||||
i = mem::transmute(buf);
|
||||
}
|
||||
Ok(u16::from_be(i))
|
||||
}
|
||||
|
||||
|
||||
/// Reads an unsigned byte from `fd`.
|
||||
fn read_u8(fd: &mut File) -> Result<u8, NrgError> {
|
||||
let mut buf = [0u8; 1];
|
||||
try!(fd.read_exact(&mut buf));
|
||||
Ok(buf[0])
|
||||
}
|
||||
|
||||
|
||||
fn skip_unhandled_chunk(fd: &mut File, chunk_id: &str) -> Result<(), NrgError> {
|
||||
let chunk_size = try!(read_u32(fd));
|
||||
try!(fd.seek(SeekFrom::Current(chunk_size as i64)));
|
||||
|
|
|
|||
|
|
@ -0,0 +1,65 @@
|
|||
use std::fmt;
|
||||
|
||||
use cuex::NrgCuex;
|
||||
use daox::NrgDaox;
|
||||
use sinf::NrgSinf;
|
||||
use mtyp::NrgMtyp;
|
||||
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct NrgMetadata {
|
||||
pub file_size: u64,
|
||||
pub nrg_version: u8,
|
||||
pub chunk_offset: u64,
|
||||
pub cuex_chunk: Option<NrgCuex>,
|
||||
pub daox_chunk: Option<NrgDaox>,
|
||||
pub sinf_chunk: Option<NrgSinf>,
|
||||
pub mtyp_chunk: Option<NrgMtyp>,
|
||||
}
|
||||
|
||||
impl NrgMetadata {
|
||||
pub fn new() -> NrgMetadata {
|
||||
NrgMetadata {
|
||||
file_size: 0,
|
||||
nrg_version: 0,
|
||||
chunk_offset: 0,
|
||||
cuex_chunk: None,
|
||||
daox_chunk: None,
|
||||
sinf_chunk: None,
|
||||
mtyp_chunk: None,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl fmt::Display for NrgMetadata {
|
||||
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||
try!(write!(f, "Image size: {} Bytes\n\
|
||||
NRG format version: {}\n\
|
||||
First chunk offset: {}",
|
||||
self.file_size,
|
||||
self.nrg_version,
|
||||
self.chunk_offset,
|
||||
));
|
||||
match self.cuex_chunk {
|
||||
None => {},
|
||||
Some(ref chunk) => try!(write!(f, "\n\n\
|
||||
{}", chunk)),
|
||||
}
|
||||
match self.daox_chunk {
|
||||
None => {},
|
||||
Some(ref chunk) => try!(write!(f, "\n\n\
|
||||
{}", chunk)),
|
||||
}
|
||||
match self.sinf_chunk {
|
||||
None => {},
|
||||
Some(ref chunk) => try!(write!(f, "\n\n\
|
||||
{}", chunk)),
|
||||
}
|
||||
match self.mtyp_chunk {
|
||||
None => {},
|
||||
Some(ref chunk) => try!(write!(f, "\n\n\
|
||||
{}", chunk)),
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,28 @@
|
|||
use std::fmt;
|
||||
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct NrgMtyp {
|
||||
pub size: u32,
|
||||
pub unknown: u32,
|
||||
}
|
||||
|
||||
impl NrgMtyp {
|
||||
pub fn new() -> NrgMtyp {
|
||||
NrgMtyp {
|
||||
size: 0,
|
||||
unknown: 0,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl fmt::Display for NrgMtyp {
|
||||
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||
write!(f, "Chunk ID: MTYP\n\
|
||||
Chunk description: Media Type (?)\n\
|
||||
Chunk size: {} Bytes\n\
|
||||
Unknown field: 0x{:04X}",
|
||||
self.size,
|
||||
self.unknown)
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,58 @@
|
|||
use std::fs::File;
|
||||
use std::io::Read;
|
||||
use std::mem;
|
||||
|
||||
use error::NrgError;
|
||||
|
||||
|
||||
/// Reads a String of size `size` from `fd`.
|
||||
pub fn read_sized_string(fd: &File, size: u64) -> Result<String, NrgError> {
|
||||
let mut handle = fd.take(size);
|
||||
let mut string = String::new();
|
||||
try!(handle.read_to_string(&mut string));
|
||||
Ok(string)
|
||||
}
|
||||
|
||||
|
||||
/// Reads a 64-bit unsigned integer from `fd`.
|
||||
pub fn read_u64(fd: &mut File) -> Result<u64, NrgError> {
|
||||
let mut buf = [0u8; 8];
|
||||
try!(fd.read_exact(&mut buf));
|
||||
let i: u64;
|
||||
unsafe {
|
||||
i = mem::transmute(buf);
|
||||
}
|
||||
Ok(u64::from_be(i))
|
||||
}
|
||||
|
||||
|
||||
/// Reads a 32-bit unsigned integer from `fd`.
|
||||
pub fn read_u32(fd: &mut File) -> Result<u32, NrgError> {
|
||||
let mut buf = [0u8; 4];
|
||||
try!(fd.read_exact(&mut buf));
|
||||
let i: u32;
|
||||
unsafe {
|
||||
i = mem::transmute(buf);
|
||||
}
|
||||
Ok(u32::from_be(i))
|
||||
}
|
||||
|
||||
|
||||
/// Reads a 16-bit unsigned integer from `fd`.
|
||||
pub fn read_u16(fd: &mut File) -> Result<u16, NrgError> {
|
||||
let mut buf = [0u8; 2];
|
||||
try!(fd.read_exact(&mut buf));
|
||||
let i: u16;
|
||||
unsafe {
|
||||
i = mem::transmute(buf);
|
||||
}
|
||||
Ok(u16::from_be(i))
|
||||
}
|
||||
|
||||
|
||||
/// Reads an unsigned byte from `fd`.
|
||||
pub fn read_u8(fd: &mut File) -> Result<u8, NrgError> {
|
||||
let mut buf = [0u8; 1];
|
||||
try!(fd.read_exact(&mut buf));
|
||||
Ok(buf[0])
|
||||
}
|
||||
|
|
@ -0,0 +1,28 @@
|
|||
use std::fmt;
|
||||
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct NrgSinf {
|
||||
pub size: u32,
|
||||
pub nb_tracks: u32,
|
||||
}
|
||||
|
||||
impl NrgSinf {
|
||||
pub fn new() -> NrgSinf {
|
||||
NrgSinf {
|
||||
size: 0,
|
||||
nb_tracks: 0,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl fmt::Display for NrgSinf {
|
||||
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||
write!(f, "Chunk ID: SINF\n\
|
||||
Chunk description: Session Information\n\
|
||||
Chunk size: {} Bytes\n\
|
||||
Number of tracks in the session: {}",
|
||||
self.size,
|
||||
self.nb_tracks)
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue