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-rw-r--r--src/flac.rs209
1 files changed, 120 insertions, 89 deletions
diff --git a/src/flac.rs b/src/flac.rs
index 7b542ac..e882cd7 100644
--- a/src/flac.rs
+++ b/src/flac.rs
@@ -1,7 +1,9 @@
use anyhow::{Result, anyhow};
-use claxon::{FlacReader, FlacReaderOptions};
use flac_bound::FlacEncoder;
-use metaflac::{Block, Tag};
+use flac_codec::{
+ decode::{Metadata, verify},
+ *,
+};
use std::{
path::Path,
sync::{
@@ -10,52 +12,63 @@ use std::{
},
};
-pub const CURRENT_VENDOR: &str = "reference libFLAC 1.5.0 20250211";
-
+pub(crate) const CURRENT_VENDOR: &str = "reference libFLAC 1.5.0 20250211";
const BADTAGS: [&str; 3] = ["encoded_by", "encodedby", "encoder"];
-fn write_tags(filename: impl AsRef<Path>) -> Result<()> {
- let tags = Tag::read_from_path(&filename)?;
- let temp_name = filename.as_ref().with_extension("tmp");
- let mut output = Tag::read_from_path(&temp_name)?;
-
- for block in tags.blocks() {
- match block {
- Block::VorbisComment(block) => {
- for (key, val) in block.comments.iter() {
- if !BADTAGS.contains(&key.to_lowercase().as_str()) {
- output.set_vorbis(key, val.to_owned());
- }
- }
- }
- Block::Padding(_) => {}
- _ => output.push_block(block.to_owned()),
- }
- }
-
- output.write_to_path(temp_name)?;
- Ok(())
-}
+fn encode_file(filename: &Path, handler: Arc<AtomicBool>) -> Result<bool> {
+ if verify(filename).is_err() {
+ return Err(anyhow!("corrupt file"));
+ };
-fn encode_file(filename: impl AsRef<Path>, handler: Arc<AtomicBool>) -> Result<bool> {
- let temp_name = filename.as_ref().with_extension("tmp");
+ let temp_name = filename.with_extension("tmp");
if temp_name.exists() {
std::fs::remove_file(&temp_name)?;
}
- let mut decoder = FlacReader::open(&filename)?;
- let streaminfo = decoder.streaminfo();
- let num_channels: usize = streaminfo.channels.try_into()?;
+ let mut reader = decode::FlacSampleReader::open(filename)?;
+
+ let blocklist = reader.metadata();
+
+ let streaminfo = blocklist.streaminfo();
+
+ let channels = streaminfo.channel_count() as u32;
+
+ let metadata = blocklist
+ .blocks()
+ .filter_map(|block| {
+ use metadata::Block;
+ use metadata::BlockRef::*;
+ match block {
+ SeekTable(table) => Some(Block::SeekTable(table.clone())),
+ Application(app) => Some(Block::Application(app.clone())),
+ Cuesheet(sheet) => Some(Block::Cuesheet(sheet.clone())),
+ Picture(picture) => Some(Block::Picture(picture.clone())),
+ VorbisComment(comments) => {
+ let mut cloned = comments.clone();
+ for tag in BADTAGS {
+ cloned.remove(tag);
+ }
+ cloned.vendor_string = CURRENT_VENDOR.to_string();
+ Some(Block::VorbisComment(cloned))
+ }
+ _ => None,
+ }
+ })
+ .collect::<Vec<metadata::Block>>();
let mut encoder = if let Some(encoder) = FlacEncoder::new() {
- if let Ok(encoder) = encoder
- .channels(streaminfo.channels)
- .bits_per_sample(streaminfo.bits_per_sample)
- .sample_rate(streaminfo.sample_rate)
- .compression_level(8)
- .verify(false)
- .init_file(&temp_name)
- {
+ if let Ok(encoder) = {
+ let mut encoder = encoder
+ .channels(streaminfo.channel_count() as u32)
+ .bits_per_sample(streaminfo.bits_per_sample())
+ .sample_rate(streaminfo.sample_rate())
+ .compression_level(8)
+ .verify(false);
+ if let Some(size) = reader.total_samples() {
+ encoder = encoder.total_samples_estimate(size)
+ }
+ encoder.init_file(&temp_name)
+ } {
encoder
} else {
return Err(anyhow!("failed to create encoder"));
@@ -64,28 +77,26 @@ fn encode_file(filename: impl AsRef<Path>, handler: Arc<AtomicBool>) -> Result<b
return Err(anyhow!("failed to create encoder"));
};
- let mut frame_reader = decoder.blocks();
- let mut buffer = Vec::new();
- let mut block_buffer = Vec::with_capacity(streaminfo.max_block_size as usize * num_channels);
-
while handler.load(Ordering::SeqCst) {
- match frame_reader.read_next_or_eof(block_buffer) {
- Ok(Some(block)) => {
- for ch in 0..block.channels() {
- buffer.push(block.channel(ch));
- }
+ match reader.fill_buf() {
+ Ok(buf) => {
+ if !buf.is_empty() {
+ let length = buf.len();
+ if encoder
+ .process_interleaved(buf, length as u32 / channels)
+ .is_err()
+ {
+ return Err(anyhow!(
+ "Error while processing samples:\t{:?}",
+ encoder.state()
+ ));
+ };
- if encoder.process(&buffer).is_err() {
- return Err(anyhow!(
- "Error while processing samples:\t{:?}",
- encoder.state()
- ));
- };
- buffer.clear();
- buffer = buffer.into_iter().map(|_| unreachable!()).collect();
- block_buffer = block.into_buffer();
+ reader.consume(length);
+ } else {
+ break;
+ }
}
- Ok(None) => break,
Err(error) => return Err(error.into()),
}
}
@@ -99,32 +110,51 @@ fn encode_file(filename: impl AsRef<Path>, handler: Arc<AtomicBool>) -> Result<b
if let Err(enc) = encoder.finish() {
return Err(anyhow!("Encoding failed:\t{:?}", enc.state()));
}
- write_tags(&filename)?;
- std::fs::rename(temp_name, filename)?;
+
+ metadata::update(&temp_name, |blocklist| {
+ for block in metadata {
+ use metadata::Block::*;
+ match block {
+ Application(b) => {
+ let _ = blocklist.insert(b);
+ }
+ Picture(b) => {
+ let _ = blocklist.insert(b);
+ }
+ VorbisComment(b) => {
+ let _ = blocklist.insert(b);
+ }
+ Cuesheet(b) => {
+ let _ = blocklist.insert(b);
+ }
+ SeekTable(b) => {
+ let _ = blocklist.insert(b);
+ }
+ _ => {}
+ }
+ }
+ Ok::<(), flac_codec::Error>(())
+ })?;
+
+ std::fs::rename(&temp_name, filename)?;
+
Ok(false)
}
-pub fn handle_encode(filename: impl AsRef<Path>, handler: Arc<AtomicBool>) -> Result<bool> {
- match encode_file(&filename, handler) {
+pub fn handle_encode(filename: &Path, handler: Arc<AtomicBool>) -> Result<bool> {
+ match encode_file(filename, handler) {
Err(error) => {
- let _ = std::fs::remove_file(filename.as_ref().with_extension("tmp"));
+ let _ = std::fs::remove_file(filename.with_extension("tmp"));
Err(error)
}
Ok(res) => Ok(res),
}
}
-pub fn get_vendor(file: impl AsRef<Path>) -> Result<String> {
- if let Some(vendor) = FlacReader::open_ext(
- file,
- FlacReaderOptions {
- metadata_only: true,
- read_vorbis_comment: true,
- },
- )?
- .vendor()
- {
- Ok(vendor.to_string())
+pub fn get_vendor(file: &Path) -> Result<String> {
+ let blocklist = metadata::BlockList::open(file)?;
+ if let Some(data) = blocklist.get::<metadata::VorbisComment>() {
+ Ok(data.vendor_string.to_owned())
} else {
Err(anyhow!("Vendor string not found"))
}
@@ -133,17 +163,18 @@ pub fn get_vendor(file: impl AsRef<Path>) -> Result<String> {
#[cfg(test)]
mod tests {
use super::*;
+ use std::path::PathBuf;
#[test]
fn bit16() {
- let name = "./samples/16bit.flac";
- let tempname = "./samples/16bit.flac.temp";
- std::fs::copy(name, tempname).unwrap();
+ let name = PathBuf::from("./samples/16bit.flac");
+ let tempname = PathBuf::from("./samples/16bit.flac.temp");
+ std::fs::copy(&name, &tempname).unwrap();
let handler = Arc::new(AtomicBool::new(true));
- encode_file(name, handler).unwrap();
+ encode_file(&name, handler).unwrap();
let output = std::process::Command::new("flac")
.arg("-wts")
- .arg(name)
+ .arg(&name)
.status();
std::fs::rename(tempname, name).unwrap();
assert!(output.unwrap().success());
@@ -151,14 +182,14 @@ mod tests {
#[test]
fn bit24() {
- let name = "./samples/24bit.flac";
- let tempname = "./samples/24bit.flac.temp";
- std::fs::copy(name, tempname).unwrap();
+ let name = PathBuf::from("./samples/24bit.flac");
+ let tempname = PathBuf::from("./samples/24bit.flac.temp");
+ std::fs::copy(&name, &tempname).unwrap();
let handler = Arc::new(AtomicBool::new(true));
- encode_file(name, handler).unwrap();
+ encode_file(&name, handler).unwrap();
let output = std::process::Command::new("flac")
.arg("-wts")
- .arg(name)
+ .arg(&name)
.status();
std::fs::rename(tempname, name).unwrap();
assert!(output.unwrap().success());
@@ -166,14 +197,14 @@ mod tests {
#[test]
fn bit32() {
- let name = "./samples/32bit.flac";
- let tempname = "./samples/32bit.flac.temp";
- std::fs::copy(name, tempname).unwrap();
+ let name = PathBuf::from("./samples/32bit.flac");
+ let tempname = PathBuf::from("./samples/32bit.flac.temp");
+ std::fs::copy(&name, &tempname).unwrap();
let handler = Arc::new(AtomicBool::new(true));
- encode_file(name, handler).unwrap();
+ encode_file(&name, handler).unwrap();
let output = std::process::Command::new("flac")
.arg("-wts")
- .arg(name)
+ .arg(&name)
.status();
std::fs::rename(tempname, name).unwrap();
assert!(output.unwrap().success());
generated by cgit v1.3.1 (git 2.54.0) at 2026-08-07 19:29:36 +0000