Working
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9eab9dd9a3
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147
src/main.rs
147
src/main.rs
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@ -1,145 +1,5 @@
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use std::fs::File;
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use std::io::{Read, Seek, SeekFrom};
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pub mod voc;
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fn parse_voc(file_name: &str) {
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println!("Parsing {} ...", file_name);
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let mut fp = File::open(file_name).unwrap();
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// Signature - Creative Voice File
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let mut signature1_buffer: [u8; 19] = [0; 19];
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drop(fp.read(&mut signature1_buffer));
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let signature1_expected = "Creative Voice File";
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let signature1 = std::str::from_utf8(&signature1_buffer).unwrap();
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if signature1 != signature1_expected {
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panic!("Bad file. Expected \"{}\" got \"{}\"", signature1_expected, signature1);
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}
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// Signature - 1A 1A 00
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let mut signature2_buffer: [u8; 3] = [0; 3];
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drop(fp.read(&mut signature2_buffer));
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let signature2_expected: [u8; 3] = [0x1A, 0x1A, 0x0];
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if signature2_buffer != signature2_expected {
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panic!("Bad file. Expected {:02X?} got {:02X?}", signature2_expected, signature2_buffer);
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}
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// Version
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let mut version_buffer: [u8; 2] = [0; 2];
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drop(fp.read(&mut version_buffer));
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let version_int = i16::from_le_bytes(version_buffer);
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let version = (version_buffer[1], version_buffer[0]);
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// Version checksum
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let mut checksum_buffer: [u8; 2] = [0; 2];
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drop(fp.read(&mut checksum_buffer));
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let checksum = (!version_int + 0x1234).to_le_bytes();
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if checksum_buffer != checksum {
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panic!("Bad file. Expected {:02X?} got {:02X?}", checksum, checksum_buffer);
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}
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let mut voc = voc::VocFile{ version, blocks: Vec::new() };
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loop {
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let mut block_type_buffer: [u8; 1] = [0];
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drop(fp.read(&mut block_type_buffer));
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let block_type = match block_type_buffer[0] {
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0 => voc::BlockType::Terminator,
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1 => voc::BlockType::SoundData,
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2 => voc::BlockType::SoundDataContinuation,
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3 => voc::BlockType::Silence,
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4 => voc::BlockType::Marker,
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5 => voc::BlockType::Text,
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6 => voc::BlockType::Repeat,
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7 => voc::BlockType::EndRepeat,
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_ => panic!("Bad block type. Got {}", block_type_buffer[0])
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};
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if block_type == voc::BlockType::Terminator {
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let block = voc::Terminator::new();
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voc.blocks.push(Box::new(block));
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break;
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}
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let mut block_size_buffer: [u8; 3] = [0; 3];
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drop(fp.read(&mut block_size_buffer));
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let block_size = i32::from_le_bytes(
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[block_size_buffer[0], block_size_buffer[1], block_size_buffer[2], 0]
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);
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let mut address = fp.seek(SeekFrom::Current(0)).unwrap() as i32;
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let next = address + block_size;
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match block_type {
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voc::BlockType::SoundData => {
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let mut frequency_divisor_buffer: [u8; 1] = [0];
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drop(fp.read(&mut frequency_divisor_buffer));
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println!("Byte: {}", frequency_divisor_buffer[0]);
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let sample_rate: i32 = 1000000i32 / (256i32 - frequency_divisor_buffer[0] as i32);
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println!("sample_rate: {}", sample_rate);
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let mut codec_buffer: [u8; 1] = [0];
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drop(fp.read(&mut codec_buffer));
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let codec = match codec_buffer[0] {
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0 => voc::Codec::Pcm8BitUnsigned,
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1 => voc::Codec::Adpcm4to8,
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2 => voc::Codec::Adpcm3to8,
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3 => voc::Codec::Adpcm2to8,
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4 => voc::Codec::Pcm16BitSigned,
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5 => voc::Codec::Alaw,
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6 => voc::Codec::Ulaw,
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7 => voc::Codec::Adpcm4to16,
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_ => panic!("Bad Sound format. Got {}", codec_buffer[0])
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};
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address = fp.seek(SeekFrom::Current(0)).unwrap() as i32;
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let mut data: Vec<u8> = vec![0; (next - address) as usize];
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drop(fp.read(&mut data));
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let block = voc::SoundData::new(block_size, sample_rate, codec, data);
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voc.blocks.push(Box::new(block));
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},
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voc::BlockType::SoundDataContinuation => {
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let mut data: Vec<u8> = vec![0; (next - address) as usize];
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drop(fp.read(&mut data));
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let block = voc::SoundDataContinuation::new(block_size, data);
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voc.blocks.push(Box::new(block));
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},
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voc::BlockType::Silence => {
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let mut length_buffer: [u8; 2] = [0; 2];
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drop(fp.read(&mut length_buffer));
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let length = i16::from_le_bytes(length_buffer);
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let mut frequency_divisor_buffer: [u8; 1] = [0];
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drop(fp.read(&mut frequency_divisor_buffer));
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let sample_rate: i32 = 1000000i32 / (256i32 - frequency_divisor_buffer[0] as i32);
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let block = voc::Silence { block_type, size: block_size, sample_rate, length};
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voc.blocks.push(Box::new(block));
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}
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voc::BlockType::Text => {
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let mut data: Vec<u8> = vec![0; (next - address) as usize];
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drop(fp.read(&mut data));
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let block = voc::Text { block_type, size: block_size, data };
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voc.blocks.push(Box::new(block));
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},
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_ => panic!("block Type {:?} not implemented", block_type),
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}
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}
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println!("{:?}", voc);
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for b in voc.blocks {
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println!("{:02X?}", b.to_bytes());
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}
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}
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fn main() {
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/*
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parse_voc("_C24FF78A.voc");
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@ -147,7 +7,12 @@ fn main() {
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parse_voc("C24FF78A.voc");
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parse_voc("pest2.voc");
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*/
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parse_voc("pest2.voc");
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//parse_voc("EDEN.MUS");
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//parse_voc("EDEN_.MUS");
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let voc = voc::VocFile::from_file("pest2.voc");
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println!("{:?}", voc);
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for b in voc.blocks {
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println!("{:02X?}", b.to_bytes());
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}
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}
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136
src/voc.rs
136
src/voc.rs
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@ -1,4 +1,6 @@
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use std::fmt;
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use std::fs::File;
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use std::io::{Read, Seek, SeekFrom};
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#[derive(Clone, Copy, Debug)]
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pub enum Codec {
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@ -12,7 +14,7 @@
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Adpcm4to16,
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}
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#[derive(Clone, Copy, Debug, PartialEq)]
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#[derive(Clone, Copy, Debug, Eq, PartialEq)]
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pub enum BlockType {
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Terminator,
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SoundData,
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@ -30,6 +32,138 @@
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pub blocks: Vec<BlockT>
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}
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impl VocFile {
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pub(crate) fn from_file(file_name: &str) -> Self {
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println!("Parsing {} ...", file_name);
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let mut fp = File::open(file_name).unwrap();
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// Signature - Creative Voice File
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let mut signature1_buffer: [u8; 19] = [0; 19];
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drop(fp.read(&mut signature1_buffer));
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let signature1_expected = "Creative Voice File";
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let signature1 = std::str::from_utf8(&signature1_buffer).unwrap();
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if signature1 != signature1_expected {
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panic!("Bad file. Expected \"{}\" got \"{}\"", signature1_expected, signature1);
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}
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// Signature - 1A 1A 00
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let mut signature2_buffer: [u8; 3] = [0; 3];
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drop(fp.read(&mut signature2_buffer));
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let signature2_expected: [u8; 3] = [0x1A, 0x1A, 0x0];
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if signature2_buffer != signature2_expected {
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panic!("Bad file. Expected {:02X?} got {:02X?}", signature2_expected, signature2_buffer);
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}
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// Version
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let mut version_buffer: [u8; 2] = [0; 2];
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drop(fp.read(&mut version_buffer));
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let version_int = i16::from_le_bytes(version_buffer);
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let version = (version_buffer[1], version_buffer[0]);
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// Version checksum
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let mut checksum_buffer: [u8; 2] = [0; 2];
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drop(fp.read(&mut checksum_buffer));
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let checksum = (!version_int + 0x1234).to_le_bytes();
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if checksum_buffer != checksum {
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panic!("Bad file. Expected {:02X?} got {:02X?}", checksum, checksum_buffer);
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}
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let mut voc = VocFile{ version, blocks: Vec::new() };
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loop {
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let mut block_type_buffer: [u8; 1] = [0];
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drop(fp.read(&mut block_type_buffer));
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let block_type = match block_type_buffer[0] {
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0 => BlockType::Terminator,
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1 => BlockType::SoundData,
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2 => BlockType::SoundDataContinuation,
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3 => BlockType::Silence,
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4 => BlockType::Marker,
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5 => BlockType::Text,
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6 => BlockType::Repeat,
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7 => BlockType::EndRepeat,
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_ => panic!("Bad block type. Got {}", block_type_buffer[0])
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};
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if block_type == BlockType::Terminator {
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let block = Terminator::new();
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voc.blocks.push(Box::new(block));
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break;
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}
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let mut block_size_buffer: [u8; 3] = [0; 3];
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drop(fp.read(&mut block_size_buffer));
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let block_size = i32::from_le_bytes(
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[block_size_buffer[0], block_size_buffer[1], block_size_buffer[2], 0]
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);
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let mut address = fp.seek(SeekFrom::Current(0)).unwrap() as i32;
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let next = address + block_size;
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match block_type {
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BlockType::SoundData => {
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let mut frequency_divisor_buffer: [u8; 1] = [0];
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drop(fp.read(&mut frequency_divisor_buffer));
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println!("Byte: {}", frequency_divisor_buffer[0]);
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let sample_rate: i32 = 1000000i32 / (256i32 - frequency_divisor_buffer[0] as i32);
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println!("sample_rate: {}", sample_rate);
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let mut codec_buffer: [u8; 1] = [0];
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drop(fp.read(&mut codec_buffer));
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let codec = match codec_buffer[0] {
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0 => Codec::Pcm8BitUnsigned,
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1 => Codec::Adpcm4to8,
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2 => Codec::Adpcm3to8,
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3 => Codec::Adpcm2to8,
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4 => Codec::Pcm16BitSigned,
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5 => Codec::Alaw,
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6 => Codec::Ulaw,
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7 => Codec::Adpcm4to16,
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_ => panic!("Bad Sound format. Got {}", codec_buffer[0])
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};
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address = fp.seek(SeekFrom::Current(0)).unwrap() as i32;
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let mut data: Vec<u8> = vec![0; (next - address) as usize];
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drop(fp.read(&mut data));
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let block = SoundData::new(block_size, sample_rate, codec, data);
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voc.blocks.push(Box::new(block));
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},
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BlockType::SoundDataContinuation => {
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let mut data: Vec<u8> = vec![0; (next - address) as usize];
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drop(fp.read(&mut data));
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let block = SoundDataContinuation::new(block_size, data);
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voc.blocks.push(Box::new(block));
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},
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BlockType::Silence => {
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let mut length_buffer: [u8; 2] = [0; 2];
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drop(fp.read(&mut length_buffer));
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let length = i16::from_le_bytes(length_buffer);
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let mut frequency_divisor_buffer: [u8; 1] = [0];
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drop(fp.read(&mut frequency_divisor_buffer));
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let sample_rate: i32 = 1000000i32 / (256i32 - frequency_divisor_buffer[0] as i32);
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let block = Silence { block_type, size: block_size, sample_rate, length};
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voc.blocks.push(Box::new(block));
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}
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BlockType::Text => {
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let mut data: Vec<u8> = vec![0; (next - address) as usize];
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drop(fp.read(&mut data));
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let block = Text { block_type, size: block_size, data };
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voc.blocks.push(Box::new(block));
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},
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_ => panic!("block Type {:?} not implemented", block_type),
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}
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}
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voc
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}
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}
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pub trait Block: std::fmt::Debug {
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fn to_bytes(&self) -> Vec<u8>;
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}
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