no render mac

.gitmodules

@@ -1,3 +1,3 @@
-[submodule "rust-whisper.d/gitea-whisper-rs"]
+[submodule "gitea-whisper-rs"]
 	path = gitea-whisper-rs
 	url = https://gitea.inhome.blapointe.com/bel/whisper-rs.git

hotwords/transcript.sh

@@ -13,6 +13,7 @@ if ! which rust-whisper-baked; then
 fi >&2
 
 cat <<EOF
+rust-whisper-baked --stream-device pulse_monitor --stream-step 16 --stream-retain 8 --stream-{head,tail}=0.25 2> /dev/null
 rust-whisper-baked --stream-device 'BlackHole 2ch' --stream-step 30 --stream-retain 1 --stream-{head,tail}=0.25 --threads 9 2> /dev/null
    | tee -a "$HOME/Sync/drawful/DnD/bdoob/__log.d/$(date +%Y.%m.%d).transcript.txt"
    | tee -a "$HOME/Sync/drawful/DnD/nessira.d/_log.d/$(date +%Y.%m.%d).transcript.txt"

listen-lib/src/lib.rs

@@ -25,7 +25,11 @@ pub fn devices() -> Vec<String> {
 fn _devices() -> Result<Vec<cpal::Device>, String> {
    match cpal::default_host().devices() {
       Ok(devices) => Ok(devices.filter(|device| {
-         device.supported_input_configs().unwrap().count() > 0
+         let input_configs = device.supported_input_configs();
+         if !input_configs.is_ok() {
+            return false;
+         }
+         input_configs.unwrap().count() > 0
       }).collect()),
       Err(msg) => Err(format!("failed to get devices: {}", msg)),
    }
@@ -92,13 +96,22 @@ impl Listener {
          filter(|device| device.name().unwrap() == self.device_name).
          collect::<Vec<_>>();
       let device = devices.first().unwrap();
-      let cfg = device.supported_input_configs()
+      let mut sample_rate = 15_500;
+      let mut cfgs: Vec<_> = device.supported_input_configs()
          .unwrap()
          .filter(|x| x.sample_format() == cpal::SampleFormat::F32)
-         .filter(|x| x.min_sample_rate() >= cpal::SampleRate(15_500))
-         .nth(0)
+         .filter(|x| x.min_sample_rate() >= cpal::SampleRate(sample_rate))
+         .collect();
+      while cfgs.len() == 0 && sample_rate > 0 {
+         sample_rate /= 2;
+         cfgs = device.supported_input_configs()
             .unwrap()
-         .with_max_sample_rate();
+            .filter(|x| x.sample_format() == cpal::SampleFormat::F32)
+            .filter(|x| x.min_sample_rate() >= cpal::SampleRate(sample_rate))
+            .collect();
+      }
+      assert!(cfgs.len() > 0);
+      let cfg = cfgs[0].clone().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(

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

@@ -6,7 +6,7 @@ pub fn channel<F>(
    stream: std::sync::mpsc::Receiver<Vec<f32>>,
 ) where F: FnMut(Result<rust_whisper_lib::Transcribed, String>) + Send + 'static {
    flags.model_path = None;
-   flags.model_buffer = Some(include_bytes!("../../models/ggml-tiny.en.bin").to_vec());
+   flags.model_buffer = Some(get_fast());
    rust_whisper_lib::channel(flags.clone(), handler_fn, stream);
 }
 
@@ -15,7 +15,7 @@ pub fn wav<F>(
    handler_fn: F
 ) where F: FnMut(Result<rust_whisper_lib::Transcribed, String>) + Send + 'static {
    flags.model_path = None;
-   flags.model_buffer = Some(include_bytes!("../../models/ggml-distil-medium.en.bin").to_vec());
+   flags.model_buffer = Some(get_good());
    rust_whisper_lib::wav(flags.clone(), handler_fn, flags.wav.unwrap());
 }
 
@@ -24,10 +24,18 @@ pub fn wav_channel<F>(
    handler_fn: F
 ) where F: FnMut(Result<rust_whisper_lib::Transcribed, String>) + Send + 'static {
    flags.model_path = None;
-   flags.model_buffer = Some(include_bytes!("../../models/ggml-base.en.bin").to_vec());
+   flags.model_buffer = Some(get_good());
    rust_whisper_lib::wav_channel(flags, handler_fn);
 }
 
 pub fn f32_from_wav_file(path: &String) -> Result<Vec<f32>, String> {
    rust_whisper_lib::f32_from_wav_file(path)
 }
+
+fn get_fast() -> Vec<u8> {
+   include_bytes!("../../models/ggml-small.en.bin").to_vec()
+}
+
+fn get_good() -> Vec<u8> {
+   include_bytes!("../../models/ggml-distil-medium.en.bin").to_vec()
+}

rust-whisper-baked/Cargo.lock

@@ -383,6 +383,12 @@ dependencies = [
  "hashbrown",
 ]
 
+[[package]]
+name = "itoa"
+version = "1.0.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b1a46d1a171d865aa5f83f92695765caa047a9b4cbae2cbf37dbd613a793fd4c"
+
 [[package]]
 name = "jni"
 version = "0.19.0"
@@ -757,14 +763,26 @@ version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b9b1a3d5f46d53f4a3478e2be4a5a5ce5108ea58b100dcd139830eae7f79a3a1"
 
+[[package]]
+name = "rust-stemmers"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e46a2036019fdb888131db7a4c847a1063a7493f971ed94ea82c67eada63ca54"
+dependencies = [
+ "serde",
+ "serde_derive",
+]
+
 [[package]]
 name = "rust-whisper-baked"
 version = "0.1.0"
 dependencies = [
  "clap",
  "listen-lib",
+ "rust-stemmers",
  "rust-whisper-baked-lib",
  "rust-whisper-lib",
+ "stop-words",
 ]
 
 [[package]]
@@ -802,6 +820,12 @@ dependencies = [
  "windows-sys",
 ]
 
+[[package]]
+name = "ryu"
+version = "1.0.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f98d2aa92eebf49b69786be48e4477826b256916e84a57ff2a4f21923b48eb4c"
+
 [[package]]
 name = "same-file"
 version = "1.0.6"
@@ -817,6 +841,37 @@ version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
 
+[[package]]
+name = "serde"
+version = "1.0.193"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "25dd9975e68d0cb5aa1120c288333fc98731bd1dd12f561e468ea4728c042b89"
+dependencies = [
+ "serde_derive",
+]
+
+[[package]]
+name = "serde_derive"
+version = "1.0.193"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "43576ca501357b9b071ac53cdc7da8ef0cbd9493d8df094cd821777ea6e894d3"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.41",
+]
+
+[[package]]
+name = "serde_json"
+version = "1.0.109"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cb0652c533506ad7a2e353cce269330d6afd8bdfb6d75e0ace5b35aacbd7b9e9"
+dependencies = [
+ "itoa",
+ "ryu",
+ "serde",
+]
+
 [[package]]
 name = "shlex"
 version = "1.2.0"
@@ -848,6 +903,15 @@ version = "1.11.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4dccd0940a2dcdf68d092b8cbab7dc0ad8fa938bf95787e1b916b0e3d0e8e970"
 
+[[package]]
+name = "stop-words"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8500024d809de02ecbf998472b7bed3c4fca380df2be68917f6a473bdb28ddcc"
+dependencies = [
+ "serde_json",
+]
+
 [[package]]
 name = "strsim"
 version = "0.10.0"

rust-whisper-baked/Cargo.toml

@@ -10,3 +10,5 @@ rust-whisper-lib = { path = "../rust-whisper-lib" }
 rust-whisper-baked-lib = { path = "../rust-whisper-baked-lib" }
 listen-lib = { path = "../listen-lib" }
 clap = { version = "4.4.10", features = ["derive"] }
+stop-words = "0.8.0"
+rust-stemmers = "1.2.0"

rust-whisper-baked/src/main.rs

@@ -1,7 +1,7 @@
-use rust_whisper_lib;
-use rust_whisper_baked_lib;
 use clap::Parser;
 use listen_lib;
+use rust_whisper_baked_lib;
+use rust_whisper_lib;
 use std::thread;
 
 fn main() {
@@ -21,8 +21,10 @@ fn wav_channel(flags: rust_whisper_lib::Flags) {
                 Ok(transcribed) => {
                     let s = w.step(transcribed.to_string());
                     println!("{}", s);
-            },
-            Err(msg) => { eprintln!("error: {}", msg); },
+                }
+                Err(msg) => {
+                    eprintln!("error: {}", msg);
+                }
             };
         },
     );
@@ -30,14 +32,17 @@ fn wav_channel(flags: rust_whisper_lib::Flags) {
 
 fn wav(flags: rust_whisper_lib::Flags, _path: String) {
     let mut w = new_destutterer();
-   rust_whisper_baked_lib::wav(flags,
+    rust_whisper_baked_lib::wav(
+        flags,
         move |result: Result<rust_whisper_lib::Transcribed, String>| {
             match result {
                 Ok(transcribed) => {
                     let s = w.step(transcribed.to_string());
                     println!("{}", s);
-            },
-            Err(msg) => { eprintln!("error: {}", msg); },
+                }
+                Err(msg) => {
+                    eprintln!("error: {}", msg);
+                }
             };
         },
     );
@@ -48,12 +53,18 @@ fn channel(flags: rust_whisper_lib::Flags) {
 
     eprintln!("rust whisper baked lib channel...");
     thread::spawn(move || {
+        let mut w = new_destutterer();
         rust_whisper_baked_lib::channel(
             flags.clone(),
-         |result: Result<rust_whisper_lib::Transcribed, String>| {
+            move |result: Result<rust_whisper_lib::Transcribed, String>| {
                 match result {
-               Ok(transcribed) => { println!("{}", transcribed.to_string()); },
-               Err(msg) => { eprintln!("error: {}", msg); },
+                    Ok(transcribed) => {
+                        let s = w.step(transcribed.to_string());
+                        println!("{}", s);
+                    }
+                    Err(msg) => {
+                        eprintln!("error: {}", msg);
+                    }
                 };
             },
             recv,
@@ -64,17 +75,25 @@ fn channel(flags: rust_whisper_lib::Flags) {
     let flags = rust_whisper_lib::Flags::parse();
     match flags.stream_device {
         Some(device_name) => {
-         if device_name == "" {
+            eprintln!("with device ({}) '{}'", device_name.len(), &device_name);
+            if device_name.len() == 0 {
+                let mut i = 0;
                 for device in listen_lib::devices() {
-               eprintln!("{}", device);
+                    eprintln!("[{}] {}", i, device);
+                    i += 1;
                 }
+                eprintln!("found {} devices", i);
             } else {
-            listen_lib::main_with(|data| {
+                listen_lib::main_with(
+                    |data| {
                         send.send(data).unwrap();
-            }, device_name);
-         }
                     },
+                    device_name,
+                );
+            }
+        }
         None => {
+            eprintln!("without any device");
             listen_lib::main(|data| {
                 send.send(data).unwrap();
             });
@@ -84,52 +103,142 @@ fn channel(flags: rust_whisper_lib::Flags) {
 }
 
 struct Destutterer {
-   prev: Option<String>,
+    prev: Words,
 }
 
 fn new_destutterer() -> Destutterer {
-   Destutterer{prev: None}
+    Destutterer { prev: new_words() }
 }
 
 impl Destutterer {
     fn step(&mut self, next: String) -> String {
-      let next = next.trim().to_string();
         if next.len() == 0 {
             return next;
         }
-      match &self.prev {
-         None => {
-            self.prev = Some(next.clone());
-            next
-         },
-         Some(prev) => {
-            let without_trailing_punctuation = {
-               let mut next = next.clone();
-               while next.ends_with("?") || next.ends_with(".") {
-                  next = next[..next.len()-1].to_string();
-               }
-               next
-            };
-            let trailing_punctuation = next[without_trailing_punctuation.len() ..].to_string();
-            let next = without_trailing_punctuation;
-            let next = {
-               let mut n = prev.len().clamp(0, next.len());
+
+        let next_words = Words::from_string(next.clone());
+        let mut n = self
+            .prev
+            .comparable_len()
+            .clamp(0, next_words.comparable_len());
+        //println!("n={} prev='{:?}' next='{:?}'", n, self.prev.to_comparable_words(), next_words.to_comparable_words());
         while n > 0 {
-                  if prev[prev.len() - n..] == next[..n] {
-                     break;
+            let (prev_s, _) = self.prev.last_n_comparable_to_string(n);
+            let (next_s, next_idx) = next_words.first_n_comparable_to_string(n);
+            if prev_s == next_s {
+                self.prev = next_words;
+                return self.prev.skip(next_idx + 1).to_string();
             }
             n -= 1;
         }
-               next[n..].to_string()
-            };
-            if next.len() == 0 {
-               return "".to_string();
+        self.prev = next_words;
+        self.prev.to_string()
     }
-            self.prev = Some(next.clone());
-            next + &trailing_punctuation
+}
+
+#[derive(Clone, Debug)]
+struct Words {
+    raw: Vec<String>,
+}
+
+fn new_words() -> Words {
+    Words { raw: vec![] }
+}
+
+impl Words {
+    fn from_string(s: String) -> Words {
+        let mut result = Words { raw: vec![] };
+        for word in s.split(" ") {
+            let word = word.trim();
+            if word.len() > 0 {
+                result.raw.push(word.to_string());
+            }
+        }
+        result
+    }
+
+    fn skip(&self, n: usize) -> Words {
+        Words {
+            raw: self.raw.iter().skip(n).map(|x| x.clone()).collect(),
+        }
+    }
+
+    fn last_n_comparable_to_string(&self, n: usize) -> (String, usize) {
+        let v = self.to_comparable_words();
+        let v = v[(v.len() - n).clamp(0, v.len())..].to_vec();
+        return (
+            v.iter()
+                .map(|x| x.s.clone().unwrap())
+                .collect::<Vec<String>>()
+                .join(" "),
+            v[0].idx,
+        );
+    }
+
+    fn first_n_comparable_to_string(&self, n: usize) -> (String, usize) {
+        let v = self.to_comparable_words();
+        let v = v[0..n.clamp(0, v.len())].to_vec();
+        return (
+            v.iter()
+                .map(|x| x.s.clone().unwrap())
+                .collect::<Vec<String>>()
+                .join(" "),
+            v[v.len() - 1].idx,
+        );
+    }
+
+    fn comparable_len(&self) -> usize {
+        self.to_comparable_words().len()
+    }
+
+    fn to_comparable_words(&self) -> Vec<Word> {
+        self.to_words()
+            .iter()
+            .filter(|x| x.s.is_some())
+            .map(|x| x.clone())
+            .collect()
+    }
+
+    fn to_words(&self) -> Vec<Word> {
+        let skips = stop_words::get("en");
+        let stemmer = rust_stemmers::Stemmer::create(rust_stemmers::Algorithm::English);
+        let strs = self
+            .raw
+            .iter()
+            .map(|w| w.to_lowercase())
+            .map(|w| {
+                w.chars()
+                    .filter(|c| c.is_ascii_alphanumeric())
+                    .collect::<String>()
+            })
+            .map(|w| stemmer.stem(&w).into_owned())
+            .collect::<Vec<String>>();
+        let mut result = vec![];
+        for i in 0..strs.len() {
+            result.push(Word {
+                s: match skips.contains(&strs[i]) {
+                    true => None,
+                    false => Some(strs[i].clone()),
                 },
+                idx: i as usize,
+            });
+        }
+        result
+    }
+
+    fn to_string(&self) -> String {
+        self.raw
+            .iter()
+            .map(|x| x.clone())
+            .collect::<Vec<String>>()
+            .join(" ")
     }
 }
+
+#[derive(Debug, Clone)]
+struct Word {
+    s: Option<String>,
+    idx: usize,
 }
 
 #[cfg(test)]
@@ -137,11 +246,39 @@ mod tests {
     use super::*;
 
     #[test]
-   fn test_destutterer() {
+    fn test_destutterer_stop_words() {
         let mut w = new_destutterer();
-      assert_eq!("abcde".to_string(), w.step("abcde".to_string()));
-      assert_eq!("fg".to_string(), w.step("cdefg".to_string()));
-      assert_eq!("hij".to_string(), w.step("fghij".to_string()));
-      assert_eq!("fghij".to_string(), w.step("fghij".to_string()));
+        assert_eq!(
+            "welcome to the internet".to_string(),
+            w.step("welcome to the internet".to_string())
+        );
+        assert_eq!(
+            "have a look around".to_string(),
+            w.step("welcome to the a internet; have a look around".to_string())
+        );
+    }
+
+    #[test]
+    fn test_destutterer_punctuation() {
+        let mut w = new_destutterer();
+        assert_eq!(
+            "cat, dog. cow? moose!".to_string(),
+            w.step("cat, dog. cow? moose!".to_string())
+        );
+        assert_eq!(
+            "elephant! fez gator".to_string(),
+            w.step("moose, elephant! fez gator".to_string())
+        );
+        assert_eq!("hij".to_string(), w.step("fez gator hij".to_string()));
+    }
+
+    #[test]
+    fn test_destutterer_basic() {
+        let mut w = new_destutterer();
+        assert_eq!(
+            "cat dog cow".to_string(),
+            w.step(" cat dog cow ".to_string())
+        );
+        assert_eq!("moose".to_string(), w.step(" dog cow moose  ".to_string()));
     }
 }

rust-whisper-lib/src/lib.rs

@@ -14,13 +14,13 @@ pub struct Flags {
    #[arg(long, default_value = "8")]
    pub threads: i32,
 
-   #[arg(long, default_value = "5")]
+   #[arg(long, default_value = "8")]
    pub stream_step: u64,
-   #[arg(long, default_value = "0.6")]
+   #[arg(long, default_value = "4.0")]
    pub stream_retain: f32,
-   #[arg(long, default_value = "0.3")]
+   #[arg(long, default_value = "2.0")]
    pub stream_head: f32,
-   #[arg(long, default_value = "0.3")]
+   #[arg(long, default_value = "0.0")]
    pub stream_tail: f32,
 
    #[arg(long, default_value = "false")]

todo.yaml

@@ -0,0 +1,12 @@
+todo:
+- wav to subtitles
+- compound words like checkmark vs check mark should destutter
+- whisper trims outside silence so head and tail never get hit
+- split on silence-ish instead of duration
+- rust-whisper warn when transcription time ~ input time
+scheduled: []
+done:
+- todo: need to overlap without ANY puctuation, which i can do by breaking into words
+  ts: Tue Jan  2 13:23:00 EST 2024
+- todo: overlap without stop words
+  ts: Wed Jan  3 03:22:14 EST 2024

wav_to_mkv.d/wav_subtitles.rs

@@ -0,0 +1,100 @@
+// This example is not going to build in this folder.
+// You need to copy this code into your project and add the dependencies whisper_rs and hound in your cargo.toml
+
+use hound;
+use std::fs::File;
+use std::io::Write;
+use whisper_rs::{FullParams, SamplingStrategy, WhisperContext};
+
+/// Loads a context and model, processes an audio file, and prints the resulting transcript to stdout.
+fn main() -> Result<(), &'static str> {
+   let args: Vec<String> = std::env::args().collect();
+
+    // Load a context and model.
+    let ctx = WhisperContext::new(&args[1])
+        .expect("failed to load model");
+    // Create a state
+    let mut state = ctx.create_state().expect("failed to create key");
+
+    // Create a params object for running the model.
+    // The number of past samples to consider defaults to 0.
+    let mut params = FullParams::new(SamplingStrategy::Greedy { best_of: 0 });
+
+    // Edit params as needed.
+    // Set the number of threads to use to 1.
+    //params.set_n_threads(1);
+    // Enable translation.
+    params.set_translate(true);
+    // Set the language to translate to to English.
+    params.set_language(Some("en"));
+    // Disable anything that prints to stdout.
+    params.set_print_special(false);
+    params.set_print_progress(false);
+    params.set_print_realtime(false);
+    params.set_print_timestamps(false);
+
+    // Open the audio file.
+    let mut reader = hound::WavReader::open(&args[2]).expect("failed to open file");
+    #[allow(unused_variables)]
+    let hound::WavSpec {
+        channels,
+        sample_rate,
+        bits_per_sample,
+        ..
+    } = reader.spec();
+
+    // Convert the audio to floating point samples.
+    let mut audio = whisper_rs::convert_integer_to_float_audio(
+        &reader
+            .samples::<i16>()
+            .map(|s| s.expect("invalid sample"))
+            .collect::<Vec<_>>(),
+    );
+
+    // Convert audio to 16KHz mono f32 samples, as required by the model.
+    // These utilities are provided for convenience, but can be replaced with custom conversion logic.
+    // SIMD variants of these functions are also available on nightly Rust (see the docs).
+    if channels == 2 {
+        audio = whisper_rs::convert_stereo_to_mono_audio(&audio)?;
+    } else if channels != 1 {
+        panic!(">2 channels unsupported");
+    }
+
+    if sample_rate != 16000 {
+        panic!("sample rate must be 16KHz");
+    }
+
+    // Run the model.
+    state.full(params, &audio[..]).expect("failed to run model");
+
+    // Create a file to write the transcript to.
+    let mut file = File::create("transcript.txt").expect("failed to create file");
+
+    // Iterate through the segments of the transcript.
+    let num_segments = state
+        .full_n_segments()
+        .expect("failed to get number of segments");
+    for i in 0..num_segments {
+        // Get the transcribed text and timestamps for the current segment.
+        let segment = state
+            .full_get_segment_text(i)
+            .expect("failed to get segment");
+        let start_timestamp = state
+            .full_get_segment_t0(i)
+            .expect("failed to get start timestamp");
+        let end_timestamp = state
+            .full_get_segment_t1(i)
+            .expect("failed to get end timestamp");
+
+        // Print the segment to stdout.
+        println!("[{} - {}]: {}", start_timestamp, end_timestamp, segment);
+
+        // Format the segment information as a string.
+        let line = format!("[{} - {}]: {}\n", start_timestamp, end_timestamp, segment);
+
+        // Write the segment information to the file.
+        file.write_all(line.as_bytes())
+            .expect("failed to write to file");
+    }
+    Ok(())
+}

wav_to_mkv.d/wav_to_mkv.sh

@@ -0,0 +1,66 @@
+#! /bin/bash
+
+main() {
+   set -euo pipefail
+
+   input_wav="$(realpath "$1")"
+   model="$(realpath "${2:-../models/ggml-small.en.bin}")"
+   already_transcribed="${3:-false}"
+
+   sanitized_wav="${input_wav%.*}.mono-16khz.wav"
+   ffmpeg -y -i "$input_wav" -ac 1 -ar 16k "$sanitized_wav"
+
+   if ! $already_transcribed; then
+      pushd "$(dirname "$(realpath "$BASH_SOURCE")")"
+      cd ../gitea-whisper-rs/
+      cargo run --example wav_subtitles -- "$model" "$sanitized_wav"
+      popd
+   fi
+   out_to_srt ../gitea-whisper-rs/transcript.txt > "${input_wav%.*}.srt"
+
+   ffmpeg -y \
+      -loop 1 -i sc.jpg \
+      -i "$input_wav" \
+      -i "${input_wav%.*}.srt" \
+      -c:v libx264 \
+      -tune stillimage \
+      -pix_fmt yuv420p -shortest \
+      "${input_wav%.*}.mkv"
+
+   ls "${input_wav%.*}.mkv"
+}
+
+out_to_srt() {
+   cs_to_ts() {
+      echo "$1" | awk '{
+         printf "%02d:%02d:%02d,000",
+            int(($1/100.0)/60/60),
+            int(($1/100.0)/60%60),
+            int(($1/100.0)%60)
+      }'
+   }
+
+   cat "$1" \
+   | (
+      i=0
+      while read -r line; do
+         ((i+=1))
+         echo "$i"
+         echo "$(cs_to_ts "$(
+            echo "${line%%:]  *}" \
+            | tr -d '[' \
+            | awk '{print $1}'
+         )") --> $(cs_to_ts "$(
+            echo "${line%%:]  *}" \
+            | tr -d '[' \
+            | awk '{print $3}'
+         )")"
+         echo "${line#*:  }"
+         echo
+      done
+   )
+}
+
+if [ "$0" == "$BASH_SOURCE" ]; then
+   main "$@"
+fi