grrrr f wasm

rust-whisper-baked-lib-wasm/Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "rust-whisper-baked-lib-wasm"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+rust-whisper-lib = { path = "../rust-whisper-lib" }
+rust-whisper-baked-lib = { path = "../rust-whisper-baked-lib" }
+wasm-bindgen = "0.2.89"

rust-whisper-baked-lib-wasm/src/lib.rs

@@ -0,0 +1,18 @@
+use wasm_bindgen::prelude::*;
+use rust_whisper_lib;
+use rust_whisper_baked_lib;
+
+#[wasm_bindgen]
+pub fn listen(
+   flags: rust_whisper_lib::Flags,
+   on_success: fn(String),
+   on_error: fn(String),
+) {
+   rust_whisper_baked_lib::main(flags, |result| {
+      match result {
+         Ok(msg) => on_success(msg.to_string()),
+         Err(msg) => on_error(msg),
+      };
+   });
+}
+

rust-whisper-baked-lib/Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "rust-whisper-baked-lib"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+rust-whisper-lib = { path = "../rust-whisper-lib" }

rust-whisper-baked-lib/src/lib.rs

@@ -0,0 +1,10 @@
+use rust_whisper_lib;
+
+pub fn main<F>(
+   mut flags: rust_whisper_lib::Flags,
+   handler_fn: F
+) where F: FnMut(Result<rust_whisper_lib::Whispered, String>) + Send + 'static {
+   flags.model_path = None;
+   flags.model_buffer = Some(include_bytes!("../../models/ggml-tiny.en.bin").to_vec());
+   rust_whisper_lib::main(flags, handler_fn);
+}

rust-whisper-baked/Cargo.toml

@@ -1,16 +1,11 @@
 [package]
-name = "rust-whisper"
+name = "rust-whisper-baked"
 version = "0.1.0"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-whisper-rs = { path = "./gitea-whisper-rs", version = "0.8.0" }
-wav = "1"
-tokio = "1.27"
-cpal = "0.15.2"
-signal-hook = "0.3.17"
-byteorder = "1.5.0"
-chrono = "0.4.31"
+rust-whisper-lib = { path = "../rust-whisper-lib" }
+rust-whisper-baked-lib = { path = "../rust-whisper-baked-lib" }
 clap = { version = "4.4.10", features = ["derive"] }

rust-whisper-baked/src/main.rs

@@ -0,0 +1,16 @@
+use rust_whisper_lib;
+use rust_whisper_baked_lib;
+use clap::Parser;
+
+fn main() {
+   let flags = rust_whisper_lib::Flags::parse();
+   rust_whisper_baked_lib::main(
+      flags,
+      |result: Result<rust_whisper_lib::Whispered, String>| {
+         match result {
+            Ok(whispered) => { println!("{}", whispered.to_string()); },
+            Err(msg) => { eprintln!("error: {}", msg); },
+         };
+      },
+   );
+}

rust-whisper-lib/Cargo.toml

@@ -6,3 +6,11 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+whisper-rs = { path = "../gitea-whisper-rs", version = "0.8.0" }
+wav = "1"
+tokio = "1.27"
+cpal = "0.15.2"
+signal-hook = "0.3.17"
+byteorder = "1.5.0"
+chrono = "0.4.31"
+clap = { version = "4.4.10", features = ["derive"] }

rust-whisper-lib/cargo.sh

@@ -0,0 +1,8 @@
+#! /bin/bash
+
+#RUSTFLAGS="-Clink-args=-lstd++" \
+
+export C_INCLUDE_PATH="$C_INCLUDE_PATH:$PWD/.."
+export LIBRARY_PATH="$LIBRARY_PATH:$PWD/.."
+
+cargo "$@"

rust-whisper-lib/src/lib.rs

@@ -1,14 +1,378 @@
-pub fn add(left: usize, right: usize) -> usize {
-    left + right
+use whisper_rs::{WhisperContext, FullParams, SamplingStrategy, WhisperError};
+use cpal::traits::{HostTrait, DeviceTrait, StreamTrait};
+use signal_hook::{iterator::Signals, consts::signal::SIGINT};
+use std::time::{Duration, Instant};
+use clap::Parser;
+use std::thread;
+use std::fs::File;
+use std::io::Write;
+
+#[derive(Parser, Debug)]
+pub struct Flags {
+   #[arg(long, default_value = "../models/ggml-tiny.en.bin")]
+   pub model_path: Option<String>,
+   #[arg(long, default_value = None)]
+   pub model_buffer: Option<Vec<u8>>,
+
+   #[arg(long, default_value = "8")]
+   pub threads: i32,
+
+   #[arg(long, default_value = "5")]
+   pub stream_step: u64,
+   #[arg(long, default_value = "0.6")]
+   pub stream_retain: f32,
+   #[arg(long, default_value = "0.3")]
+   pub stream_head: f32,
+   #[arg(long, default_value = "0.3")]
+   pub stream_tail: f32,
+
+   #[arg(long, default_value = None)]
+   pub wav: Option<String>,
+
+   #[arg(long, default_value = "false")]
+   pub debug: bool,
 }
 
-#[cfg(test)]
-mod tests {
-    use super::*;
+pub fn main<F>(flags: Flags, handler_fn: F) where F: FnMut(Result<Whispered, String>) + Send + 'static {
+   let w = new_whisper_service(
+      flags.model_path,
+      flags.model_buffer,
+      flags.threads,
+      flags.stream_head,
+      flags.stream_tail,
+      handler_fn,
+   ).unwrap();
+   let stream_retain = (flags.stream_retain * 16_000.0) as usize;
+   let stream_step = Duration::new(flags.stream_step, 0);
+   match flags.wav {
+      Some(wav) => {
+         let (header, data) = wav::read(
+            &mut std::fs::File::open(wav).expect("failed to open $WAV"),
+         ).expect("failed to decode $WAV");
+         assert!(header.channel_count == 1);
+         assert!(header.sampling_rate == 16_000);
+         let data16 = data.as_sixteen().expect("wav is not 32bit floats");
+         let audio_data = &whisper_rs::convert_integer_to_float_audio(&data16);
 
-    #[test]
-    fn it_works() {
-        let result = add(2, 2);
-        assert_eq!(result, 4);
-    }
+         w.transcribe(&audio_data);
+      },
+      None => {
+         match &flags.debug {
+            true => { File::create("/tmp/page.rawf32audio").unwrap(); },
+            false => {},
+         };
+         let mut buffer = vec![];
+         let mut last = Instant::now();
+         new_listener().listen(move |data: Vec<f32>| {
+            data.iter().for_each(|x| buffer.push(*x));
+            if Instant::now() - last > stream_step {
+               w.transcribe_async(&buffer).unwrap();
+
+               match &flags.debug {
+                  true => {
+                     let mut f = File::options().append(true).open("/tmp/page.rawf32audio").unwrap();
+                     let mut wav_data = vec![];
+                     for i in buffer.iter() {
+                        for j in i.to_le_bytes() {
+                           wav_data.push(j);
+                        }
+                     }
+                     f.write_all(wav_data.as_slice()).unwrap();
+                  },
+                  false => {},
+               };
+
+               for i in 0..stream_retain {
+                  buffer[i] = buffer[buffer.len() - stream_retain + i];
+               }
+               buffer.truncate(stream_retain);
+               last = Instant::now();
+            }
+         });
+      },
+   };
+}
+
+struct WhisperService {
+   jobs: std::sync::mpsc::SyncSender<AWhisper>,
+}
+
+fn new_whisper_service<F>(model_path: Option<String>, model_buffer: Option<Vec<u8>>, threads: i32, stream_head: f32, stream_tail: f32, handler_fn: F) -> Result<WhisperService, String> where F: FnMut(Result<Whispered, String>) + Send + 'static {
+   match new_whisper_engine(model_path, model_buffer, threads) {
+      Ok(engine) => {
+         let mut whisper = new_whisper_impl(engine, stream_head, stream_tail, handler_fn);
+         let (send, recv) = std::sync::mpsc::sync_channel(100);
+         thread::spawn(move || { whisper.transcribe_asyncs(recv); });
+         Ok(WhisperService{jobs: send})
+      },
+      Err(msg) => Err(format!("failed to initialize engine: {}", msg)),
+   }
+}
+
+impl WhisperService {
+   fn transcribe(&self, data: &Vec<f32>) {
+      let (send, recv) = std::sync::mpsc::sync_channel(0);
+      self._transcribe_async(data, Some(send)).unwrap();
+      recv.recv().unwrap();
+   }
+
+   fn transcribe_async(&self, data: &Vec<f32>) -> Result<(), String> {
+      self._transcribe_async(data, None)
+   }
+
+   fn _transcribe_async(&self, data: &Vec<f32>, ack: Option<std::sync::mpsc::SyncSender<bool>>) -> Result<(), String> {
+      match self.jobs.try_send(AWhisper{
+         data: data.clone().to_vec(),
+         ack: ack,
+      }) {
+         Ok(_) => Ok(()),
+         Err(msg) => Err(format!("failed to enqueue transcription: {}", msg)),
+      }
+   }
+}
+
+struct WhisperImpl {
+   engine: WhisperEngine,
+   stream_head: f32,
+   stream_tail: f32,
+   handler_fn: Option<Box<dyn FnMut(Result<Whispered, String>) + Send + 'static>>
+}
+
+fn new_whisper_impl<F>(engine: WhisperEngine, stream_head: f32, stream_tail: f32, handler_fn: F) -> WhisperImpl where F: FnMut(Result<Whispered, String>) + Send + 'static {
+   WhisperImpl {
+      engine: engine,
+      stream_head: stream_head,
+      stream_tail: stream_tail,
+      handler_fn: Some(Box::new(handler_fn)),
+   }
+}
+
+impl WhisperImpl {
+   fn transcribe_asyncs(&mut self, recv: std::sync::mpsc::Receiver<AWhisper>) {
+      loop {
+         match recv.recv() {
+            Ok(job) => {
+               let result = self.transcribe(&job).is_ok();
+               match job.ack {
+                  Some(ack) => {
+                     ack.send(result).unwrap();
+                  },
+                  None => (),
+               };
+            }
+            Err(_) => return,
+         };
+      }
+   }
+
+   fn transcribe(&mut self, a_whisper: &AWhisper) -> Result<(), ()> {
+      match self.engine.transcribe(&a_whisper.data) {
+         Ok(result) => {
+            self.on_success(&result);
+            Ok(())
+         },
+         Err(msg) => {
+            self.on_error(msg.to_string());
+            Err(())
+         },
+      }
+   }
+
+   fn on_success(&mut self, whispered: &Whispered) {
+      let result = whispered
+         .after(&(self.stream_head * 100.0))
+         .before(&(self.stream_tail * 100.0));
+      (self.handler_fn.as_mut().unwrap())(Ok(result));
+   }
+
+   fn on_error(&mut self, msg: String) {
+      (self.handler_fn.as_mut().unwrap())(Err(format!("failed to transcribe: {}", &msg)));
+   }
+}
+
+struct WhisperEngine {
+   ctx: WhisperContext,
+   threads: i32,
+}
+
+fn new_whisper_engine(model_path: Option<String>, model_buffer: Option<Vec<u8>>, threads: i32) -> Result<WhisperEngine, String> {
+   if model_path.is_some() {
+      let model_path = model_path.unwrap();
+      return match WhisperContext::new(&model_path.clone()) {
+         Ok(ctx) => Ok(WhisperEngine{ctx: ctx, threads: threads}),
+         Err(msg) => Err(format!("failed to load {}: {}", model_path, msg)),
+      };
+   }
+   if model_buffer.is_some() {
+      let model_buffer = model_buffer.unwrap();
+      return match WhisperContext::new_from_buffer(&model_buffer) {
+         Ok(ctx) => Ok(WhisperEngine{ctx: ctx, threads: threads}),
+         Err(msg) => Err(format!("failed to load buffer: {}", msg)),
+      };
+   }
+   Err("neither model path nor buffer provided".to_string())
+}
+
+impl WhisperEngine {
+   fn transcribe(&self, data: &Vec<f32>) -> Result<Whispered, WhisperError> {
+      let mut params = FullParams::new(SamplingStrategy::Greedy { best_of: 0 });
+      params.set_no_context(true);
+      params.set_n_threads(self.threads);
+      params.set_translate(false);
+      params.set_detect_language(false);
+      params.set_language(Some("en"));
+      params.set_print_special(false);
+      params.set_print_progress(false);
+      params.set_print_realtime(false);
+      params.set_print_timestamps(false);
+
+      let mut state = self.ctx.create_state()?;
+      state.full(params, &data[..])?;
+
+      let mut result = new_whispered();
+      let num_segments = state.full_n_segments()?;
+      for i in 0..num_segments {
+         let data = state.full_get_segment_text(i)?;
+         let start = state.full_get_segment_t0(i)?;
+         let stop = state.full_get_segment_t1(i)?;
+         result.push(data, start, stop);
+      }
+
+      Ok(result)
+   }
+}
+
+struct AWhisper {
+   data: Vec<f32>,
+   ack: Option<std::sync::mpsc::SyncSender<bool>>,
+}
+
+#[derive(Clone, Debug)]
+pub struct Whispered {
+   data: Vec<AWhispered>,
+}
+
+#[derive(Clone, Debug)]
+struct AWhispered {
+   pub data: String,
+   pub offset: i64,
+   pub length: i64,
+}
+
+fn new_whispered() -> Whispered {
+   Whispered{data: vec![]}
+}
+
+fn new_a_whispered(data: String, start: i64, stop: i64) -> AWhispered {
+   AWhispered{
+      data: data,
+      offset: start.clone(),
+      length: stop - start,
+   }
+}
+
+impl Whispered {
+   pub fn to_string(&self) -> String {
+      let mut result = "".to_string();
+      for i in 0..self.data.len() {
+         result = format!("{} {}", result, &self.data[i].data);
+      }
+      result
+   }
+
+   fn after(&self, t: &f32) -> Whispered {
+      let mut result = new_whispered();
+      self.data
+         .iter()
+         .filter(|x| x.offset as f32 >= *t)
+         .for_each(|x| result.data.push(x.clone()));
+      result
+   }
+
+   fn before(&self, t: &f32) -> Whispered {
+      let mut result = new_whispered();
+      let end = match self.data.iter().map(|x| x.offset + x.length).max() {
+         Some(x) => x,
+         None => 1,
+      };
+      let t = (end as f32) - *t;
+      self.data
+         .iter()
+         .filter(|x| ((x.offset) as f32) <= t)
+         .for_each(|x| result.data.push(x.clone()));
+      result
+   }
+
+   fn push(&mut self, data: String, start: i64, stop: i64) {
+      let words: Vec<_> = data.split_whitespace().collect();
+      let per_word = (stop - start) / (words.len() as i64);
+      for i in 0..words.len() {
+         let start = (i as i64) * per_word;
+         let stop = start.clone() + per_word;
+         self.data.push(new_a_whispered(words[i].to_string(), start, stop));
+      }
+   }
+}
+
+struct Listener {
+}
+
+fn new_listener() -> Listener {
+   Listener{}
+}
+
+impl Listener {
+   fn listen(self, mut cb: impl FnMut(Vec<f32>)) {
+      let (send, recv) = std::sync::mpsc::sync_channel(100);
+      thread::spawn(move || { self._listen(send); });
+      loop {
+         match recv.recv() {
+            Ok(msg) => cb(msg),
+            Err(_) => return,
+         };
+      }
+   }
+
+   fn _listen(self, send: std::sync::mpsc::SyncSender<Vec<f32>>) {
+      let host = cpal::default_host();
+      let device = host.default_input_device().unwrap();
+      let cfg = device.supported_input_configs()
+         .unwrap()
+         .filter(|x| x.sample_format() == cpal::SampleFormat::F32)
+         .nth(0)
+         .unwrap()
+         .with_max_sample_rate();
+
+      let downsample_ratio = cfg.channels() as f32 * (cfg.sample_rate().0 as f32 / 16_000.0);
+      let stream = device.build_input_stream(
+         &cfg.clone().into(),
+         move |data: &[f32], _: &cpal::InputCallbackInfo| {
+            let mut downsampled_data = vec![];
+            for i in 0..(data.len() as f32 / downsample_ratio) as usize {
+               let mut upsampled = i as f32 * downsample_ratio;
+               if upsampled > (data.len()-1) as f32 {
+                  upsampled = (data.len()-1) as f32
+               }
+               downsampled_data.push(data[upsampled as usize]);
+            }
+            match send.try_send(downsampled_data) {
+               Ok(_) => (),
+               Err(msg) => eprintln!("failed to ingest audio: {}", msg),
+            };
+         },
+         move |err| {
+            eprintln!("input error: {}", err)
+         },
+         None,
+      ).unwrap();
+      stream.play().unwrap();
+
+      eprintln!("listening on {}", device.name().unwrap());
+      let mut signals = Signals::new(&[SIGINT]).unwrap();
+      for sig in signals.forever() {
+         eprintln!("sig {}", sig);
+         break;
+      }
+      stream.pause().unwrap();
+   }
 }

rust-whisper-lib/target/doc/rust_whisper_lib/all.html

@@ -0,0 +1 @@
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rust-whisper-lib/target/doc/rust_whisper_lib/fn.main.html

@@ -0,0 +1,2 @@
+<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="API documentation for the Rust `main` fn in crate `rust_whisper_lib`."><title>main in rust_whisper_lib - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/SourceSerif4-Regular-46f98efaafac5295.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/SourceSerif4-Bold-a2c9cd1067f8b328.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../static.files/rustdoc-fa3bb1812debf86c.css"><meta name="rustdoc-vars" data-root-path="../" data-static-root-path="../static.files/" data-current-crate="rust_whisper_lib" data-themes="" data-resource-suffix="" data-rustdoc-version="1.74.0 (79e9716c9 2023-11-13)" data-channel="1.74.0" data-search-js="search-8be46b629f5f14a8.js" data-settings-js="settings-74424d7eec62a23e.js" ><script src="../static.files/storage-fec3eaa3851e447d.js"></script><script defer src="sidebar-items.js"></script><script defer src="../static.files/main-c5bd66d33317d69f.js"></script><noscript><link rel="stylesheet" href="../static.files/noscript-5d8b3c7633ad77ba.css"></noscript><link rel="alternate icon" type="image/png" href="../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../static.files/favicon-2c020d218678b618.svg"></head><body class="rustdoc fn"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle">&#9776;</button><a class="logo-container" href="../rust_whisper_lib/index.html"><img class="rust-logo" src="../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></a></nav><nav class="sidebar"><a class="logo-container" href="../rust_whisper_lib/index.html"><img class="rust-logo" src="../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></a><div class="sidebar-elems"><h2><a href="index.html">In rust_whisper_lib</a></h2></div></nav><main><div class="width-limiter"><nav class="sub"><form class="search-form"><span></span><input class="search-input" name="search" aria-label="Run search in the documentation" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../static.files/wheel-7b819b6101059cd0.svg"></a></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1>Function <a href="index.html">rust_whisper_lib</a>::<wbr><a class="fn" href="#">main</a><button id="copy-path" title="Copy item path to clipboard"><img src="../static.files/clipboard-7571035ce49a181d.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="src" href="../src/rust_whisper_lib/lib.rs.html#36-94">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>&#x2212;</span>]</button></span></div><pre class="rust item-decl"><code>pub fn main&lt;F&gt;(flags: <a class="struct" href="struct.Flags.html" title="struct rust_whisper_lib::Flags">Flags</a>, handler_fn: F)<span class="where fmt-newline">where
+    F: <a class="trait" href="https://doc.rust-lang.org/1.74.0/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(<a class="enum" href="https://doc.rust-lang.org/1.74.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="struct" href="struct.Whispered.html" title="struct rust_whisper_lib::Whispered">Whispered</a>, <a class="struct" href="https://doc.rust-lang.org/1.74.0/alloc/string/struct.String.html" title="struct alloc::string::String">String</a>&gt;) + <a class="trait" href="https://doc.rust-lang.org/1.74.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + 'static,</span></code></pre></section></div></main></body></html>

rust-whisper-lib/target/doc/rust_whisper_lib/index.html

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+<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="API documentation for the Rust `rust_whisper_lib` crate."><title>rust_whisper_lib - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/SourceSerif4-Regular-46f98efaafac5295.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/SourceSerif4-Bold-a2c9cd1067f8b328.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../static.files/rustdoc-fa3bb1812debf86c.css"><meta name="rustdoc-vars" data-root-path="../" data-static-root-path="../static.files/" data-current-crate="rust_whisper_lib" data-themes="" data-resource-suffix="" data-rustdoc-version="1.74.0 (79e9716c9 2023-11-13)" data-channel="1.74.0" data-search-js="search-8be46b629f5f14a8.js" data-settings-js="settings-74424d7eec62a23e.js" ><script src="../static.files/storage-fec3eaa3851e447d.js"></script><script defer src="../crates.js"></script><script defer src="../static.files/main-c5bd66d33317d69f.js"></script><noscript><link rel="stylesheet" href="../static.files/noscript-5d8b3c7633ad77ba.css"></noscript><link rel="alternate icon" type="image/png" href="../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../static.files/favicon-2c020d218678b618.svg"></head><body class="rustdoc mod crate"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle">&#9776;</button><a class="logo-container" href="../rust_whisper_lib/index.html"><img class="rust-logo" src="../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></a></nav><nav class="sidebar"><a class="logo-container" href="../rust_whisper_lib/index.html"><img class="rust-logo" src="../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></a><h2 class="location"><a href="#">Crate rust_whisper_lib</a></h2><div class="sidebar-elems"><ul class="block"><li class="version">Version 0.1.0</li><li><a id="all-types" href="all.html">All Items</a></li></ul><section><ul class="block"><li><a href="#structs">Structs</a></li><li><a href="#functions">Functions</a></li></ul></section></div></nav><main><div class="width-limiter"><nav class="sub"><form class="search-form"><span></span><input class="search-input" name="search" aria-label="Run search in the documentation" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../static.files/wheel-7b819b6101059cd0.svg"></a></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1>Crate <a class="mod" href="#">rust_whisper_lib</a><button id="copy-path" title="Copy item path to clipboard"><img src="../static.files/clipboard-7571035ce49a181d.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="src" href="../src/rust_whisper_lib/lib.rs.html#1-378">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>&#x2212;</span>]</button></span></div><h2 id="structs" class="small-section-header"><a href="#structs">Structs</a></h2><ul class="item-table"><li><div class="item-name"><a class="struct" href="struct.Flags.html" title="struct rust_whisper_lib::Flags">Flags</a></div></li><li><div class="item-name"><a class="struct" href="struct.Whispered.html" title="struct rust_whisper_lib::Whispered">Whispered</a></div></li></ul><h2 id="functions" class="small-section-header"><a href="#functions">Functions</a></h2><ul class="item-table"><li><div class="item-name"><a class="fn" href="fn.main.html" title="fn rust_whisper_lib::main">main</a></div></li></ul></section></div></main></body></html>

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rust-whisper/Cargo.lock

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+dependencies = [
+ "windows_aarch64_gnullvm 0.52.0",
+ "windows_aarch64_msvc 0.52.0",
+ "windows_i686_gnu 0.52.0",
+ "windows_i686_msvc 0.52.0",
+ "windows_x86_64_gnu 0.52.0",
+ "windows_x86_64_gnullvm 0.52.0",
+ "windows_x86_64_msvc 0.52.0",
+]
+
 [[package]]
 name = "windows_aarch64_gnullvm"
 version = "0.42.2"
@@ -1263,6 +1286,12 @@ version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2b38e32f0abccf9987a4e3079dfb67dcd799fb61361e53e2882c3cbaf0d905d8"
 
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cb7764e35d4db8a7921e09562a0304bf2f93e0a51bfccee0bd0bb0b666b015ea"
+
 [[package]]
 name = "windows_aarch64_msvc"
 version = "0.42.2"
@@ -1275,6 +1304,12 @@ version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dc35310971f3b2dbbf3f0690a219f40e2d9afcf64f9ab7cc1be722937c26b4bc"
 
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bbaa0368d4f1d2aaefc55b6fcfee13f41544ddf36801e793edbbfd7d7df075ef"
+
 [[package]]
 name = "windows_i686_gnu"
 version = "0.42.2"
@@ -1287,6 +1322,12 @@ version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a75915e7def60c94dcef72200b9a8e58e5091744960da64ec734a6c6e9b3743e"
 
+[[package]]
+name = "windows_i686_gnu"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a28637cb1fa3560a16915793afb20081aba2c92ee8af57b4d5f28e4b3e7df313"
+
 [[package]]
 name = "windows_i686_msvc"
 version = "0.42.2"
@@ -1299,6 +1340,12 @@ version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8f55c233f70c4b27f66c523580f78f1004e8b5a8b659e05a4eb49d4166cca406"
 
+[[package]]
+name = "windows_i686_msvc"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ffe5e8e31046ce6230cc7215707b816e339ff4d4d67c65dffa206fd0f7aa7b9a"
+
 [[package]]
 name = "windows_x86_64_gnu"
 version = "0.42.2"
@@ -1311,6 +1358,12 @@ version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "53d40abd2583d23e4718fddf1ebec84dbff8381c07cae67ff7768bbf19c6718e"
 
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3d6fa32db2bc4a2f5abeacf2b69f7992cd09dca97498da74a151a3132c26befd"
+
 [[package]]
 name = "windows_x86_64_gnullvm"
 version = "0.42.2"
@@ -1323,6 +1376,12 @@ version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0b7b52767868a23d5bab768e390dc5f5c55825b6d30b86c844ff2dc7414044cc"
 
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1a657e1e9d3f514745a572a6846d3c7aa7dbe1658c056ed9c3344c4109a6949e"
+
 [[package]]
 name = "windows_x86_64_msvc"
 version = "0.42.2"
@@ -1336,10 +1395,16 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
 
 [[package]]
-name = "winnow"
-version = "0.5.19"
+name = "windows_x86_64_msvc"
+version = "0.52.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "829846f3e3db426d4cee4510841b71a8e58aa2a76b1132579487ae430ccd9c7b"
+checksum = "dff9641d1cd4be8d1a070daf9e3773c5f67e78b4d9d42263020c057706765c04"
+
+[[package]]
+name = "winnow"
+version = "0.5.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9b5c3db89721d50d0e2a673f5043fc4722f76dcc352d7b1ab8b8288bed4ed2c5"
 dependencies = [
  "memchr",
 ]

rust-whisper/Cargo.toml

@@ -6,4 +6,5 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-rust-whisper = { path = ".." }
+rust-whisper-lib = { path = "../rust-whisper-lib" }
+clap = { version = "4.4.10", features = ["derive"] }

rust-whisper/cargo.sh

@@ -0,0 +1,8 @@
+#! /bin/bash
+
+#RUSTFLAGS="-Clink-args=-lstd++" \
+
+export C_INCLUDE_PATH="$C_INCLUDE_PATH:$PWD/.."
+export LIBRARY_PATH="$LIBRARY_PATH:$PWD/.."
+
+cargo "$@"

rust-whisper/src/main.rs

@@ -1,3 +1,15 @@
+use rust_whisper_lib;
+use clap::Parser;
+
 fn main() {
-    println!("Hello, world!");
+   let flags = rust_whisper_lib::Flags::parse();
+   rust_whisper_lib::main(
+      flags,
+      |result: Result<rust_whisper_lib::Whispered, String>| {
+         match result {
+            Ok(whispered) => { println!("{}", whispered.to_string()); },
+            Err(msg) => { eprintln!("error: {}", msg); },
+         };
+      },
+   );
 }

src/main.rs

@@ -1,374 +0,0 @@
-use whisper_rs::{WhisperContext, FullParams, SamplingStrategy, WhisperError};
-use cpal::traits::{HostTrait, DeviceTrait, StreamTrait};
-use signal_hook::{iterator::Signals, consts::signal::SIGINT};
-use std::time::{Duration, Instant};
-use chrono;
-use clap::Parser;
-use std::thread;
-use std::fs::File;
-use std::io::Write;
-
-#[derive(Parser, Debug)]
-struct Flags {
-   #[arg(long, default_value = "./models/ggml-tiny.en.bin")]
-   model: String,
-
-   #[arg(long, default_value = "8")]
-   threads: i32,
-
-   #[arg(long, default_value = "5")]
-   stream_step: u64,
-   #[arg(long, default_value = "0.6")]
-   stream_retain: f32,
-   #[arg(long, default_value = "0.3")]
-   stream_head: f32,
-   #[arg(long, default_value = "0.3")]
-   stream_tail: f32,
-
-   wav: Option<String>,
-
-   #[arg(long, default_value = "false")]
-   debug: bool,
-}
-
-fn main() {
-   let flags = Flags::parse();
-
-   let w = new_whisper_service(
-      flags.model,
-      flags.threads,
-      flags.stream_head,
-      flags.stream_tail,
-      |result: Result<Whispered, String>| {
-         match result {
-            Ok(whispered) => {
-               eprintln!("{}: {:?}", chrono::Local::now(), whispered);
-               println!("{}", whispered.to_string());
-            },
-            Err(msg) => { eprintln!("Error whispering: {}", msg); },
-         };
-      },
-   ).unwrap();
-   let stream_retain = (flags.stream_retain * 16_000.0) as usize;
-   let stream_step = Duration::new(flags.stream_step, 0);
-   match flags.wav {
-      Some(wav) => {
-         let (header, data) = wav::read(
-            &mut std::fs::File::open(wav).expect("failed to open $WAV"),
-         ).expect("failed to decode $WAV");
-         assert!(header.channel_count == 1);
-         assert!(header.sampling_rate == 16_000);
-         let data16 = data.as_sixteen().expect("wav is not 32bit floats");
-         let audio_data = &whisper_rs::convert_integer_to_float_audio(&data16);
-
-         w.transcribe(&audio_data);
-      },
-      None => {
-         match &flags.debug {
-            true => { File::create("/tmp/page.rawf32audio").unwrap(); },
-            false => {},
-         };
-         let mut buffer = vec![];
-         let mut last = Instant::now();
-         new_listener().listen(move |data: Vec<f32>| {
-            data.iter().for_each(|x| buffer.push(*x));
-            if Instant::now() - last > stream_step {
-               w.transcribe_async(&buffer).unwrap();
-
-               match &flags.debug {
-                  true => {
-                     let mut f = File::options().append(true).open("/tmp/page.rawf32audio").unwrap();
-                     let mut wav_data = vec![];
-                     for i in buffer.iter() {
-                        for j in i.to_le_bytes() {
-                           wav_data.push(j);
-                        }
-                     }
-                     f.write_all(wav_data.as_slice()).unwrap();
-                  },
-                  false => {},
-               };
-
-               for i in 0..stream_retain {
-                  buffer[i] = buffer[buffer.len() - stream_retain + i];
-               }
-               buffer.truncate(stream_retain);
-               last = Instant::now();
-            }
-         });
-      },
-   };
-}
-
-struct WhisperService {
-   jobs: std::sync::mpsc::SyncSender<AWhisper>,
-}
-
-fn new_whisper_service<F>(model_path: String, threads: i32, stream_head: f32, stream_tail: f32, handler_fn: F) -> Result<WhisperService, String> where F: FnMut(Result<Whispered, String>) + Send + 'static {
-   match new_whisper_engine(model_path, threads) {
-      Ok(engine) => {
-         let mut whisper = new_whisper_impl(engine, stream_head, stream_tail, handler_fn);
-         let (send, recv) = std::sync::mpsc::sync_channel(100);
-         thread::spawn(move || { whisper.transcribe_asyncs(recv); });
-         Ok(WhisperService{jobs: send})
-      },
-      Err(msg) => Err(format!("failed to initialize engine: {}", msg)),
-   }
-}
-
-impl WhisperService {
-   fn transcribe(&self, data: &Vec<f32>) {
-      let (send, recv) = std::sync::mpsc::sync_channel(0);
-      self._transcribe_async(data, Some(send)).unwrap();
-      recv.recv().unwrap();
-   }
-
-   fn transcribe_async(&self, data: &Vec<f32>) -> Result<(), String> {
-      self._transcribe_async(data, None)
-   }
-
-   fn _transcribe_async(&self, data: &Vec<f32>, ack: Option<std::sync::mpsc::SyncSender<bool>>) -> Result<(), String> {
-      match self.jobs.try_send(AWhisper{
-         data: data.clone().to_vec(),
-         ack: ack,
-      }) {
-         Ok(_) => Ok(()),
-         Err(msg) => Err(format!("failed to enqueue transcription: {}", msg)),
-      }
-   }
-}
-
-struct WhisperImpl {
-   engine: WhisperEngine,
-   stream_head: f32,
-   stream_tail: f32,
-   handler_fn: Option<Box<dyn FnMut(Result<Whispered, String>) + Send + 'static>>
-}
-
-fn new_whisper_impl<F>(engine: WhisperEngine, stream_head: f32, stream_tail: f32, handler_fn: F) -> WhisperImpl where F: FnMut(Result<Whispered, String>) + Send + 'static {
-   WhisperImpl {
-      engine: engine,
-      stream_head: stream_head,
-      stream_tail: stream_tail,
-      handler_fn: Some(Box::new(handler_fn)),
-   }
-}
-
-impl WhisperImpl {
-   fn transcribe_asyncs(&mut self, recv: std::sync::mpsc::Receiver<AWhisper>) {
-      loop {
-         match recv.recv() {
-            Ok(job) => {
-               let result = self.transcribe(&job).is_ok();
-               match job.ack {
-                  Some(ack) => {
-                     ack.send(result).unwrap();
-                  },
-                  None => (),
-               };
-            }
-            Err(_) => return,
-         };
-      }
-   }
-
-   fn transcribe(&mut self, a_whisper: &AWhisper) -> Result<(), ()> {
-      match self.engine.transcribe(&a_whisper.data) {
-         Ok(result) => {
-            self.on_success(&result);
-            Ok(())
-         },
-         Err(msg) => {
-            self.on_error(msg.to_string());
-            Err(())
-         },
-      }
-   }
-
-   fn on_success(&mut self, whispered: &Whispered) {
-      let result = whispered
-         .after(&(self.stream_head * 100.0))
-         .before(&(self.stream_tail * 100.0));
-      (self.handler_fn.as_mut().unwrap())(Ok(result));
-   }
-
-   fn on_error(&mut self, msg: String) {
-      (self.handler_fn.as_mut().unwrap())(Err(format!("failed to transcribe: {}", &msg)));
-   }
-}
-
-struct WhisperEngine {
-   ctx: WhisperContext,
-   threads: i32,
-}
-
-fn new_whisper_engine(model_path: String, threads: i32) -> Result<WhisperEngine, String> {
-   match WhisperContext::new(&model_path) {
-      Ok(ctx) => Ok(WhisperEngine{ctx: ctx, threads: threads}),
-      Err(msg) => Err(format!("failed to load {}: {}", model_path, msg)),
-   }
-}
-
-impl WhisperEngine {
-   fn transcribe(&self, data: &Vec<f32>) -> Result<Whispered, WhisperError> {
-      let mut params = FullParams::new(SamplingStrategy::Greedy { best_of: 0 });
-      params.set_no_context(true);
-      params.set_n_threads(self.threads);
-      params.set_translate(false);
-      params.set_detect_language(false);
-      params.set_language(Some("en"));
-      params.set_print_special(false);
-      params.set_print_progress(false);
-      params.set_print_realtime(false);
-      params.set_print_timestamps(false);
-
-      let mut state = self.ctx.create_state()?;
-      state.full(params, &data[..])?;
-
-      let mut result = new_whispered();
-      let num_segments = state.full_n_segments()?;
-      for i in 0..num_segments {
-         let data = state.full_get_segment_text(i)?;
-         let start = state.full_get_segment_t0(i)?;
-         let stop = state.full_get_segment_t1(i)?;
-         result.push(data, start, stop);
-      }
-
-      Ok(result)
-   }
-}
-
-struct AWhisper {
-   data: Vec<f32>,
-   ack: Option<std::sync::mpsc::SyncSender<bool>>,
-}
-
-#[derive(Clone, Debug)]
-struct Whispered {
-   data: Vec<AWhispered>,
-}
-
-#[derive(Clone, Debug)]
-struct AWhispered {
-   data: String,
-   offset: i64,
-   length: i64,
-}
-
-fn new_whispered() -> Whispered {
-   Whispered{data: vec![]}
-}
-
-fn new_a_whispered(data: String, start: i64, stop: i64) -> AWhispered {
-   AWhispered{
-      data: data,
-      offset: start.clone(),
-      length: stop - start,
-   }
-}
-
-impl Whispered {
-   fn to_string(&self) -> String {
-      let mut result = "".to_string();
-      for i in 0..self.data.len() {
-         result = format!("{} {}", result, &self.data[i].data);
-      }
-      result
-   }
-
-   fn after(&self, t: &f32) -> Whispered {
-      let mut result = new_whispered();
-      self.data
-         .iter()
-         .filter(|x| x.offset as f32 >= *t)
-         .for_each(|x| result.data.push(x.clone()));
-      result
-   }
-
-   fn before(&self, t: &f32) -> Whispered {
-      let mut result = new_whispered();
-      let end = match self.data.iter().map(|x| x.offset + x.length).max() {
-         Some(x) => x,
-         None => 1,
-      };
-      let t = (end as f32) - *t;
-      self.data
-         .iter()
-         .filter(|x| ((x.offset) as f32) <= t)
-         .for_each(|x| result.data.push(x.clone()));
-      result
-   }
-
-   fn push(&mut self, data: String, start: i64, stop: i64) {
-      let words: Vec<_> = data.split_whitespace().collect();
-      let per_word = (stop - start) / (words.len() as i64);
-      for i in 0..words.len() {
-         let start = (i as i64) * per_word;
-         let stop = start.clone() + per_word;
-         self.data.push(new_a_whispered(words[i].to_string(), start, stop));
-      }
-   }
-}
-
-struct Listener {
-}
-
-fn new_listener() -> Listener {
-   Listener{}
-}
-
-impl Listener {
-   fn listen(self, mut cb: impl FnMut(Vec<f32>)) {
-      let (send, recv) = std::sync::mpsc::sync_channel(100);
-      thread::spawn(move || { self._listen(send); });
-      loop {
-         match recv.recv() {
-            Ok(msg) => cb(msg),
-            Err(_) => return,
-         };
-      }
-   }
-
-   fn _listen(self, send: std::sync::mpsc::SyncSender<Vec<f32>>) {
-      let host = cpal::default_host();
-      let device = host.default_input_device().unwrap();
-      let cfg = device.supported_input_configs()
-         .unwrap()
-         .filter(|x| x.sample_format() == cpal::SampleFormat::F32)
-         .nth(0)
-         .unwrap()
-         .with_max_sample_rate();
-
-      let downsample_ratio = cfg.channels() as f32 * (cfg.sample_rate().0 as f32 / 16_000.0);
-      let stream = device.build_input_stream(
-         &cfg.clone().into(),
-         move |data: &[f32], _: &cpal::InputCallbackInfo| {
-            let mut downsampled_data = vec![];
-            for i in 0..(data.len() as f32 / downsample_ratio) as usize {
-               let mut upsampled = i as f32 * downsample_ratio;
-               if upsampled > (data.len()-1) as f32 {
-                  upsampled = (data.len()-1) as f32
-               }
-               downsampled_data.push(data[upsampled as usize]);
-            }
-            match send.try_send(downsampled_data) {
-               Ok(_) => (),
-               Err(msg) => eprintln!("failed to ingest audio: {}", msg),
-            };
-         },
-         move |err| {
-            eprintln!("input error: {}", err)
-         },
-         None,
-      ).unwrap();
-      stream.play().unwrap();
-
-      eprintln!("listening on {}", device.name().unwrap());
-      let mut signals = Signals::new(&[SIGINT]).unwrap();
-      for sig in signals.forever() {
-         eprintln!("sig {}", sig);
-         break;
-      }
-      stream.pause().unwrap();
-   }
-}