Add ffprobe/ffmpeg integration and models for Audible chapters and voucher

- Add new dependencies: Inflector, crossterm, and related crates.
- Implement ffprobe and ffmpeg command integration in src/main.rs.
- Add models for chapters, ffprobe format, and voucher deserialization in src/models/chapters.rs, src/models/ffprobe_format.rs, and src/models/voucher.rs.
- Create a module aggregator in src/models/mod.rs.
- Update Cargo.toml and Cargo.lock for new dependencies.

Cargo.lock

@@ -2,6 +2,12 @@
 # It is not intended for manual editing.
 version = 3
 
+[[package]]
+name = "Inflector"
+version = "0.11.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fe438c63458706e03479442743baae6c88256498e6431708f6dfc520a26515d3"
+
 [[package]]
 name = "anstream"
 version = "0.6.18"
@@ -38,7 +44,7 @@ version = "1.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "79947af37f4177cfead1110013d678905c37501914fba0efea834c3fe9a8d60c"
 dependencies = [
- "windows-sys",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
@@ -48,18 +54,38 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2109dbce0e72be3ec00bed26e6a7479ca384ad226efdd66db8fa2e3a38c83125"
 dependencies = [
  "anstyle",
- "windows-sys",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
 name = "audible-util"
 version = "0.1.0"
 dependencies = [
+ "Inflector",
  "clap",
+ "crossterm",
  "serde",
  "serde_json",
 ]
 
+[[package]]
+name = "autocfg"
+version = "1.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ace50bade8e6234aa140d9a2f552bbee1db4d353f69b8217bc503490fc1a9f26"
+
+[[package]]
+name = "bitflags"
+version = "2.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b048fb63fd8b5923fc5aa7b340d8e156aec7ec02f0c78fa8a6ddc2613f6f71de"
+
+[[package]]
+name = "cfg-if"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+
 [[package]]
 name = "clap"
 version = "4.5.23"
@@ -106,6 +132,41 @@ version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5b63caa9aa9397e2d9480a9b13673856c78d8ac123288526c37d7839f2a86990"
 
+[[package]]
+name = "crossterm"
+version = "0.28.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "829d955a0bb380ef178a640b91779e3987da38c9aea133b20614cfed8cdea9c6"
+dependencies = [
+ "bitflags",
+ "crossterm_winapi",
+ "mio",
+ "parking_lot",
+ "rustix",
+ "signal-hook",
+ "signal-hook-mio",
+ "winapi",
+]
+
+[[package]]
+name = "crossterm_winapi"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "acdd7c62a3665c7f6830a51635d9ac9b23ed385797f70a83bb8bafe9c572ab2b"
+dependencies = [
+ "winapi",
+]
+
+[[package]]
+name = "errno"
+version = "0.3.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "33d852cb9b869c2a9b3df2f71a3074817f01e1844f839a144f5fcef059a4eb5d"
+dependencies = [
+ "libc",
+ "windows-sys 0.59.0",
+]
+
 [[package]]
 name = "heck"
 version = "0.5.0"
@@ -124,12 +185,75 @@ version = "1.0.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d75a2a4b1b190afb6f5425f10f6a8f959d2ea0b9c2b1d79553551850539e4674"
 
+[[package]]
+name = "libc"
+version = "0.2.169"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b5aba8db14291edd000dfcc4d620c7ebfb122c613afb886ca8803fa4e128a20a"
+
+[[package]]
+name = "linux-raw-sys"
+version = "0.4.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "78b3ae25bc7c8c38cec158d1f2757ee79e9b3740fbc7ccf0e59e4b08d793fa89"
+
+[[package]]
+name = "lock_api"
+version = "0.4.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "07af8b9cdd281b7915f413fa73f29ebd5d55d0d3f0155584dade1ff18cea1b17"
+dependencies = [
+ "autocfg",
+ "scopeguard",
+]
+
+[[package]]
+name = "log"
+version = "0.4.22"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a7a70ba024b9dc04c27ea2f0c0548feb474ec5c54bba33a7f72f873a39d07b24"
+
 [[package]]
 name = "memchr"
 version = "2.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
 
+[[package]]
+name = "mio"
+version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2886843bf800fba2e3377cff24abf6379b4c4d5c6681eaf9ea5b0d15090450bd"
+dependencies = [
+ "libc",
+ "log",
+ "wasi",
+ "windows-sys 0.52.0",
+]
+
+[[package]]
+name = "parking_lot"
+version = "0.12.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f1bf18183cf54e8d6059647fc3063646a1801cf30896933ec2311622cc4b9a27"
+dependencies = [
+ "lock_api",
+ "parking_lot_core",
+]
+
+[[package]]
+name = "parking_lot_core"
+version = "0.9.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e401f977ab385c9e4e3ab30627d6f26d00e2c73eef317493c4ec6d468726cf8"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "redox_syscall",
+ "smallvec",
+ "windows-targets",
+]
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.92"
@@ -148,12 +272,40 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "redox_syscall"
+version = "0.5.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "03a862b389f93e68874fbf580b9de08dd02facb9a788ebadaf4a3fd33cf58834"
+dependencies = [
+ "bitflags",
+]
+
+[[package]]
+name = "rustix"
+version = "0.38.42"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f93dc38ecbab2eb790ff964bb77fa94faf256fd3e73285fd7ba0903b76bedb85"
+dependencies = [
+ "bitflags",
+ "errno",
+ "libc",
+ "linux-raw-sys",
+ "windows-sys 0.59.0",
+]
+
 [[package]]
 name = "ryu"
 version = "1.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f3cb5ba0dc43242ce17de99c180e96db90b235b8a9fdc9543c96d2209116bd9f"
 
+[[package]]
+name = "scopeguard"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
+
 [[package]]
 name = "serde"
 version = "1.0.216"
@@ -186,6 +338,42 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "signal-hook"
+version = "0.3.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8621587d4798caf8eb44879d42e56b9a93ea5dcd315a6487c357130095b62801"
+dependencies = [
+ "libc",
+ "signal-hook-registry",
+]
+
+[[package]]
+name = "signal-hook-mio"
+version = "0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "34db1a06d485c9142248b7a054f034b349b212551f3dfd19c94d45a754a217cd"
+dependencies = [
+ "libc",
+ "mio",
+ "signal-hook",
+]
+
+[[package]]
+name = "signal-hook-registry"
+version = "1.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a9e9e0b4211b72e7b8b6e85c807d36c212bdb33ea8587f7569562a84df5465b1"
+dependencies = [
+ "libc",
+]
+
+[[package]]
+name = "smallvec"
+version = "1.13.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3c5e1a9a646d36c3599cd173a41282daf47c44583ad367b8e6837255952e5c67"
+
 [[package]]
 name = "strsim"
 version = "0.11.1"
@@ -215,6 +403,43 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
 
+[[package]]
+name = "wasi"
+version = "0.11.0+wasi-snapshot-preview1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
+
+[[package]]
+name = "winapi"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
+dependencies = [
+ "winapi-i686-pc-windows-gnu",
+ "winapi-x86_64-pc-windows-gnu",
+]
+
+[[package]]
+name = "winapi-i686-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
+
+[[package]]
+name = "winapi-x86_64-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
+
+[[package]]
+name = "windows-sys"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "282be5f36a8ce781fad8c8ae18fa3f9beff57ec1b52cb3de0789201425d9a33d"
+dependencies = [
+ "windows-targets",
+]
+
 [[package]]
 name = "windows-sys"
 version = "0.59.0"

Cargo.toml

@@ -7,3 +7,6 @@ edition = "2021"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 clap = { version = "4.5", features = ["derive"] }
+crossterm = "0.28"
+
+Inflector = { version = "0.11", default-features = false }

src/cli.rs

@@ -1,6 +1,6 @@
 use std::path::PathBuf;
 
-use clap::Parser;
+use clap::{Parser, ValueEnum};
 
 #[derive(Parser)]
 pub struct Cli {
@@ -11,4 +11,25 @@ pub struct Cli {
     /// voucher file
     #[clap(long)]
     pub voucher_path: Option<PathBuf>,
+    // Ideal interface
+    // I need to get a path to the audio file which can be either aaxc or aax
+    // Optionally I can get the output path
+    // Also I need to a flag to determine whether to split the final file or not
+    // I might want to add an option to choose the output file type like mp3, flac etc...
+    #[clap(long)]
+    pub output_path: Option<PathBuf>,
+
+    #[clap(short, long)]
+    pub split: bool,
+
+    /// Output file type enum
+    #[clap(long, value_enum)]
+    pub output_type: Option<OutputType>,
+}
+
+#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, ValueEnum)]
+pub enum OutputType {
+    Mp3,
+    Wav,
+    Flac,
 }

src/main.rs

@@ -1,8 +1,26 @@
-use clap::Parser;
-
-mod chapters;
 mod cli;
-mod voucher;
+mod models;
+
+use crate::models::FFProbeFormat;
+use clap::Parser;
+use crossterm::cursor::{MoveTo, MoveUp, RestorePosition, SavePosition};
+use crossterm::{cursor, execute, ExecutableCommand};
+use inflector::Inflector;
+use std::io::{self, Cursor};
+use std::path::{Path, PathBuf};
+use std::process::Child;
+use std::{
+    io::BufRead,
+    process::{Command, Stdio},
+};
+
+// ffmpeg command:
+// ffmpeg -audible_key 92f0173bcfb2fc144897da04603d07c0
+//        -audible_iv 33b00a91f553a54ee6c9e3556e021fab
+//        -i The_Way_of_Kings_The_Stormlight_Archive_Book_1-AAX_22_64.aaxc
+//        -map_metadata 0 -vn -codec:a mp3 the_way_of_kings.mp3
+
+// ffprobe -i The_Way_of_Kings_The_Stormlight_Archive_Book_1-AAX_22_64.aaxc -print_format json -show_format
 
 fn main() {
     let cli = cli::Cli::parse();
@@ -16,8 +34,94 @@ fn main() {
     let voucher_file_path =
         aaxc_file_path.with_file_name(format!("{}.voucher", aaxc_file_path_stem.to_str().unwrap()));
 
-    println!("aaxc file path: {}", aaxc_file_path.display());
+    // Use serde to deserialize voucher file into `AudibleCliVoucher`
-    println!("aaxc file exists? {}", aaxc_file_path.exists());
+    let voucher: models::AudibleCliVoucher = serde_json::from_reader(
-    println!("voucher file path: {}", voucher_file_path.display());
+        std::fs::File::open(&voucher_file_path).expect("Failed to open voucher file"),
-    println!("voucher file exists? {}", voucher_file_path.exists());
+    )
+    .expect("Failed to deserialize voucher file");
+
+    let audible_key = voucher.content_license.license_response.key;
+    let audible_iv = voucher.content_license.license_response.iv;
+
+    let ffprobe_json = ffprobe(&aaxc_file_path);
+    let title = ffprobe_json.format.tags.title;
+    let album = ffprobe_json.format.tags.album;
+    let duration = ffprobe_json.format.duration;
+
+    let file_name = format!("{}.mp3", album.to_snake_case());
+
+    println!("Title: {}", title);
+    println!("File name: {}", file_name);
+
+    let mut cmd = ffmpeg(aaxc_file_path, audible_key, audible_iv, duration, file_name);
+
+    cmd.wait().unwrap();
+}
+
+fn ffprobe(aaxc_file_path: &Path) -> FFProbeFormat {
+    let ffprobe_cmd = Command::new("ffprobe")
+        .args([
+            "-i",
+            aaxc_file_path.to_str().unwrap(),
+            "-print_format",
+            "json",
+            "-show_format",
+            "-sexagesimal",
+        ])
+        .stdout(Stdio::piped())
+        .stderr(Stdio::piped())
+        .output()
+        .expect("failed to execute process");
+
+    let ffprobe_output = std::str::from_utf8(&ffprobe_cmd.stdout).unwrap();
+    let ffprobe_json: models::FFProbeFormat = serde_json::from_str(ffprobe_output).unwrap();
+    ffprobe_json
+}
+
+fn ffmpeg(
+    aaxc_file_path: PathBuf,
+    audible_key: String,
+    audible_iv: String,
+    duration: String,
+    file_name: String,
+) -> Child {
+    let mut cmd = Command::new("ffmpeg")
+        .args([
+            "-audible_key",
+            audible_key.as_str(),
+            "-audible_iv",
+            audible_iv.as_str(),
+            "-i",
+            aaxc_file_path.to_str().unwrap(),
+            "-progress",
+            "/dev/stdout",
+            "-y",
+            "-map_metadata",
+            "0",
+            "-vn",
+            "-codec:a",
+            "mp3",
+            file_name.as_str(),
+        ])
+        .stdout(Stdio::piped())
+        .stderr(Stdio::piped())
+        .spawn()
+        .expect("failed to execute process");
+
+    {
+        let stdout = cmd.stdout.as_mut().unwrap();
+        let stdout_reader = std::io::BufReader::new(stdout);
+        let stdout_lines = stdout_reader.lines();
+
+        for line in stdout_lines {
+            let l = line.unwrap();
+            if l.contains("time=") {
+                println!("{} / {}", l, duration);
+            }
+            if l.contains("speed=") {
+                println!("{}", l);
+            }
+        }
+    }
+    cmd
 }

src/models/ffprobe_format.rs

@@ -0,0 +1,54 @@
+use serde::{Deserialize, Serialize};
+
+#[derive(Default, Debug, Clone, PartialEq, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct FFProbeFormat {
+    pub format: Format,
+}
+
+#[derive(Default, Debug, Clone, PartialEq, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct Format {
+    pub filename: String,
+    #[serde(rename = "nb_streams")]
+    pub nb_streams: i64,
+    #[serde(rename = "nb_programs")]
+    pub nb_programs: i64,
+    #[serde(rename = "nb_stream_groups")]
+    pub nb_stream_groups: i64,
+    #[serde(rename = "format_name")]
+    pub format_name: String,
+    #[serde(rename = "format_long_name")]
+    pub format_long_name: String,
+    #[serde(rename = "start_time")]
+    pub start_time: String,
+    pub duration: String,
+    pub size: String,
+    #[serde(rename = "bit_rate")]
+    pub bit_rate: String,
+    #[serde(rename = "probe_score")]
+    pub probe_score: i64,
+    pub tags: Tags,
+}
+
+#[derive(Default, Debug, Clone, PartialEq, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct Tags {
+    #[serde(rename = "major_brand")]
+    pub major_brand: String,
+    #[serde(rename = "minor_version")]
+    pub minor_version: String,
+    #[serde(rename = "compatible_brands")]
+    pub compatible_brands: String,
+    #[serde(rename = "creation_time")]
+    pub creation_time: String,
+    pub genre: String,
+    pub title: String,
+    pub artist: String,
+    #[serde(rename = "album_artist")]
+    pub album_artist: String,
+    pub album: String,
+    pub comment: String,
+    pub copyright: String,
+    pub date: String,
+}

src/models/mod.rs

@@ -0,0 +1,7 @@
+mod chapters;
+mod ffprobe_format;
+mod voucher;
+
+pub use chapters::*;
+pub use ffprobe_format::*;
+pub use voucher::*;