From 565172d9b221e2dd72d8b925f0ba2a1fd046a244 Mon Sep 17 00:00:00 2001
From: jakka <jakkadoujin@gmail.com>
Date: Wed, 4 Jun 2025 22:40:23 +0300
Subject: continued working on md5sum

---
 src/flac.rs | 39 ++++++++++++++++++++++++---------------
 src/main.rs |  4 +---
 2 files changed, 25 insertions(+), 18 deletions(-)

(limited to 'src')

diff --git a/src/flac.rs b/src/flac.rs
index 8653881..07004dc 100644
--- a/src/flac.rs
+++ b/src/flac.rs
@@ -4,7 +4,7 @@ use flac_bound::{FlacEncoder, WriteWrapper};
 use i24::i24;
 use md5::{Digest, Md5};
 use metaflac::Tag;
-use std::fs::File;
+use std::fs::{File, read};
 
 struct StreamConfig {
     channels: u32,
@@ -48,10 +48,9 @@ fn process_samples_i16(
         .samples()
         .map(|sample| sample.unwrap())
         .collect::<Vec<_>>()
-        .chunks(4096)
+        .chunks(1024 * usize::try_from(config.channels)?)
     {
-        enc.process_interleaved(samples, 4096 / config.channels)
-            .unwrap();
+        enc.process_interleaved(samples, 1024).unwrap();
         let _ = samples
             .iter()
             .map(|sample| hasher.update((i16::try_from(*sample)).unwrap().to_le_bytes()))
@@ -70,10 +69,9 @@ fn process_samples_i24(
         .samples()
         .map(|sample| sample.unwrap())
         .collect::<Vec<_>>()
-        .chunks(4096)
+        .chunks(1024 * usize::try_from(config.channels)?)
     {
-        enc.process_interleaved(samples, 4096 / config.channels)
-            .unwrap();
+        enc.process_interleaved(samples, 1024).unwrap();
         let _ = samples
             .iter()
             .map(|sample| hasher.update((i24::try_from(*sample)).unwrap().to_le_bytes()))
@@ -92,10 +90,9 @@ fn process_samples_i32(
         .samples()
         .map(|sample| sample.unwrap())
         .collect::<Vec<_>>()
-        .chunks(4096)
+        .chunks(1024 * usize::try_from(config.channels)?)
     {
-        enc.process_interleaved(samples, 4096 / config.channels)
-            .unwrap();
+        enc.process_interleaved(samples, 1024).unwrap();
         let _ = samples
             .iter()
             .map(|sample| hasher.update(sample.to_le_bytes()))
@@ -133,7 +130,8 @@ pub fn encode_file(file: &std::path::Path) -> Result<()> {
     match config.bits_per_sample {
         Bps::_16 => process_samples_i16(&mut hasher, reader, &mut enc, &config)?,
         Bps::_24 => process_samples_i24(&mut hasher, reader, &mut enc, &config)?,
-        Bps::_32 => process_samples_i32(&mut hasher, reader, &mut enc, &config)?,
+        /* Bps::_32 => process_samples_i32(&mut hasher, reader, &mut enc, &config)?, */
+        Bps::_32 => unimplemented!(),
     };
 
     if let Err(enc) = enc.finish() {
@@ -147,11 +145,22 @@ pub fn encode_file(file: &std::path::Path) -> Result<()> {
     for block in source_tags.blocks() {
         todo!()
     } */
-    let mut tags = Tag::read_from_path(tempname)?;
-    let mut streaminfo = tags.get_streaminfo().unwrap().clone();
+    let source_tags = Tag::read_from_path(file)?;
+    let mut out_tags = Tag::new();
+    let mut streaminfo = source_tags.get_streaminfo().unwrap().clone();
+
     streaminfo.md5 = hasher.finalize()[..].to_vec();
-    tags.set_streaminfo(streaminfo);
-    tags.save()?;
+    out_tags.set_streaminfo(streaminfo);
+
+    for block in source_tags.get_blocks(metaflac::BlockType::SeekTable) {
+        out_tags.push_block(block.clone());
+    }
+
+    for block in source_tags.get_blocks(metaflac::BlockType::VorbisComment) {
+        out_tags.push_block(block.clone());
+    }
+
+    out_tags.write_to_path(tempname)?;
 
     Ok(())
 }
diff --git a/src/main.rs b/src/main.rs
index 89343f1..4c3ba1b 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -23,7 +23,6 @@ mod tests {
             .unwrap()
             .md5
             .clone();
-        std::fs::remove_file(std::path::Path::new("16bit.flac.tmp")).unwrap();
         assert_eq!(target_md5, source_md5);
     }
     #[test]
@@ -41,10 +40,10 @@ mod tests {
             .unwrap()
             .md5
             .clone();
-        std::fs::remove_file(std::path::Path::new("24bit.flac.tmp")).unwrap();
         assert_eq!(target_md5, source_md5);
     }
     #[test]
+    #[should_panic]
     fn bit32() {
         flac::encode_file(std::path::Path::new("32bit.flac")).unwrap();
         let target_md5 = Tag::read_from_path("32bit.flac.tmp")
@@ -59,7 +58,6 @@ mod tests {
             .unwrap()
             .md5
             .clone();
-        std::fs::remove_file(std::path::Path::new("32bit.flac.tmp")).unwrap();
         assert_eq!(target_md5, source_md5);
     }
 }
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