Working

src/voc.rs

@@ -1,9 +1,9 @@
-    use std::fmt;
-    use std::fs::File;
-    use std::io::{Read, Seek, SeekFrom};
+use std::fmt;
+use std::fs::File;
+use std::io::{Read, Seek, SeekFrom};
 
-    #[derive(Clone, Copy, Debug)]
-    pub enum Codec {
+#[derive(Clone, Copy, Debug)]
+pub enum Codec {
     Pcm8BitUnsigned,
     Adpcm4to8,
     Adpcm3to8,
@@ -12,10 +12,10 @@
     Alaw,
     Ulaw,
     Adpcm4to16,
-    }
+}
 
-    #[derive(Clone, Copy, Debug, Eq, PartialEq)]
-    pub enum BlockType {
+#[derive(Clone, Copy, Debug, Eq, PartialEq)]
+pub enum BlockType {
     Terminator,
     SoundData,
     SoundDataContinuation,
@@ -24,15 +24,15 @@
     Text,
     Repeat,
     EndRepeat,
-    }
+}
 
-    #[derive(Debug)]
-    pub struct VocFile {
+#[derive(Debug)]
+pub struct VocFile {
     pub version: (u8, u8),
-        pub blocks: Vec<BlockT>
-    }
+    pub blocks: Vec<BlockT>,
+}
 
-    impl VocFile {
+impl VocFile {
     pub(crate) fn from_file(file_name: &str) -> Self {
         println!("Parsing {} ...", file_name);
         let mut fp = File::open(file_name).unwrap();
@@ -68,7 +68,7 @@
             panic!("Bad file. Expected {:02X?} got {:02X?}", checksum, checksum_buffer);
         }
 
-            let mut voc = VocFile{ version, blocks: Vec::new() };
+        let mut voc = VocFile { version, blocks: Vec::new() };
 
         loop {
             let mut block_type_buffer: [u8; 1] = [0];
@@ -128,14 +128,14 @@
 
                     let block = SoundData::new(block_size, sample_rate, codec, data);
                     voc.blocks.push(Box::new(block));
-                    },
+                }
                 BlockType::SoundDataContinuation => {
                     let mut data: Vec<u8> = vec![0; (next - address) as usize];
                     drop(fp.read(&mut data));
 
                     let block = SoundDataContinuation::new(block_size, data);
                     voc.blocks.push(Box::new(block));
-                    },
+                }
                 BlockType::Silence => {
                     let mut length_buffer: [u8; 2] = [0; 2];
                     drop(fp.read(&mut length_buffer));
@@ -145,7 +145,7 @@
                     drop(fp.read(&mut frequency_divisor_buffer));
                     let sample_rate: i32 = 1000000i32 / (256i32 - frequency_divisor_buffer[0] as i32);
 
-                        let block = Silence { block_type, size: block_size, sample_rate, length};
+                    let block = Silence { block_type, size: block_size, sample_rate, length };
                     voc.blocks.push(Box::new(block));
                 }
                 BlockType::Text => {
@@ -154,29 +154,27 @@
 
                     let block = Text { block_type, size: block_size, data };
                     voc.blocks.push(Box::new(block));
-
-                    },
+                }
                 _ => panic!("block Type {:?} not implemented", block_type),
             }
-
         }
         voc
     }
-    }
+}
 
-    pub trait Block: std::fmt::Debug {
+pub trait Block: std::fmt::Debug {
     fn to_bytes(&self) -> Vec<u8>;
-    }
+}
 
-    impl Block for Terminator {
+impl Block for Terminator {
     fn to_bytes(&self) -> Vec<u8> {
         vec![self.block_type as u8]
     }
-    }
+}
 
-    impl Block for SoundData {
+impl Block for SoundData {
     fn to_bytes(&self) -> Vec<u8> {
-            let size_bytes : [u8; 4] = self.size.to_le_bytes();
+        let size_bytes: [u8; 4] = self.size.to_le_bytes();
         let frequency_divisor: u8 = (256i32 - 1000000i32 / self.sample_rate as i32) as u8;
 
         let mut result: Vec<u8> = vec![
@@ -185,40 +183,40 @@
             size_bytes[1],
             size_bytes[2],
             frequency_divisor,
-                self.codec as u8
+            self.codec as u8,
         ];
 
         result.extend_from_slice(&self.data);
 
         result
     }
-    }
+}
 
-    impl Block for SoundDataContinuation {
+impl Block for SoundDataContinuation {
     fn to_bytes(&self) -> Vec<u8> {
         let mut result: Vec<u8> = vec![self.block_type as u8];
         result.extend_from_slice(&self.data);
         result
     }
-    }
+}
 
-    impl Block for Silence {
+impl Block for Silence {
     fn to_bytes(&self) -> Vec<u8> {
         panic!("Not implemented");
         vec![self.block_type as u8]
     }
-    }
+}
 
-    impl Block for Marker {
+impl Block for Marker {
     fn to_bytes(&self) -> Vec<u8> {
         panic!("Not implemented");
         vec![self.block_type as u8]
     }
-    }
+}
 
-    impl Block for Text {
+impl Block for Text {
     fn to_bytes(&self) -> Vec<u8> {
-            let size_bytes : [u8; 4] = self.size.to_le_bytes();
+        let size_bytes: [u8; 4] = self.size.to_le_bytes();
 
         let mut result: Vec<u8> = vec![
             self.block_type as u8,
@@ -231,50 +229,50 @@
 
         result
     }
-    }
+}
 
-    impl Block for RepeatStart {
+impl Block for RepeatStart {
     fn to_bytes(&self) -> Vec<u8> {
         panic!("Not implemented");
         vec![self.block_type as u8]
     }
-    }
+}
 
-    impl Block for RepeatEnd {
+impl Block for RepeatEnd {
     fn to_bytes(&self) -> Vec<u8> {
         panic!("Not implemented");
         vec![self.block_type as u8]
     }
-    }
+}
 
-    type BlockT = Box<dyn Block>;
+type BlockT = Box<dyn Block>;
 
-    pub struct Terminator {
+pub struct Terminator {
     block_type: BlockType,
-    }
+}
 
-    impl fmt::Debug for Terminator {
+impl fmt::Debug for Terminator {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         f.debug_struct("Terminator")
             .finish()
     }
-    }
+}
 
-    impl Terminator {
+impl Terminator {
     pub fn new() -> Self {
         Self { block_type: BlockType::Terminator }
     }
-    }
+}
 
-    pub struct SoundData {
+pub struct SoundData {
     block_type: BlockType,
     pub size: i32,
     pub sample_rate: i32,
     pub codec: Codec,
     pub data: Vec<u8>,
-    }
+}
 
-    impl fmt::Debug for SoundData {
+impl fmt::Debug for SoundData {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         f.debug_struct("SoundData")
             .field("size", &self.size)
@@ -282,82 +280,82 @@
             .field("codec", &self.codec)
             .finish()
     }
-    }
+}
 
-    impl SoundData {
+impl SoundData {
     pub fn new(size: i32, sample_rate: i32, codec: Codec, data: Vec<u8>) -> Self {
         Self {
             block_type: BlockType::SoundData,
             size,
             sample_rate,
             codec,
-                data
-            }
+            data,
         }
     }
+}
 
-    pub struct SoundDataContinuation {
+pub struct SoundDataContinuation {
     pub block_type: BlockType,
     pub size: i32,
     pub data: Vec<u8>,
-    }
+}
 
-    impl fmt::Debug for SoundDataContinuation {
+impl fmt::Debug for SoundDataContinuation {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         f.debug_struct("SoundDataContinuation")
             .field("size", &self.size)
             .finish()
     }
-    }
+}
 
-    impl SoundDataContinuation {
+impl SoundDataContinuation {
     pub fn new(size: i32, data: Vec<u8>) -> Self {
         Self {
             block_type: BlockType::SoundDataContinuation,
             size,
-                data
-            }
+            data,
         }
     }
+}
 
-    #[derive(Debug)]
-    pub struct Silence {
+#[derive(Debug)]
+pub struct Silence {
     pub block_type: BlockType,
     pub size: i32,
     pub sample_rate: i32,
     pub length: i16,
-    }
+}
 
-    #[derive(Debug)]
-    pub struct Marker {
+#[derive(Debug)]
+pub struct Marker {
     block_type: BlockType,
     size: i32,
     value: i16,
-    }
+}
 
-    pub struct Text {
+pub struct Text {
     pub block_type: BlockType,
     pub size: i32,
     pub data: Vec<u8>,
-    }
+}
 
-    impl fmt::Debug for Text {
+impl fmt::Debug for Text {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         f.debug_struct("Text")
             .field("size", &self.size)
             .finish()
     }
-    }
+}
 
-    #[derive(Debug)]
-    pub struct RepeatStart {
+#[derive(Debug)]
+pub struct RepeatStart {
     block_type: BlockType,
     size: i32,
     repeat: i16,
-    }
+}
 
-    #[derive(Debug)]
-    pub struct RepeatEnd {
+#[derive(Debug)]
+pub struct RepeatEnd {
     block_type: BlockType,
     size: i32,
-    }
+}