Unverified Commit bc511ec7 authored by Russell Cohen's avatar Russell Cohen Committed by GitHub
Browse files

Add two Amazon Polly examples (#286) 



* Add to Amazon Polly examples

* Fix copy-paste error

* Update aws/sdk/examples/polly-helloworld/src/main.rs

Co-authored-by: default avatarDavid Barsky <dbarsky@amazon.com>

* Update aws/sdk/examples/polly-helloworld/src/main.rs

Co-authored-by: default avatarDavid Barsky <dbarsky@amazon.com>

* Some cleanups

* Rerun precommit

* CR Feedback

* Fix clippy lint

* Small cleanup

Co-authored-by: default avatarDavid Barsky <dbarsky@amazon.com>
parent 6b605892

aws/sdk/examples/polly-generate-speech/.gitignore

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audio.mp3

aws/sdk/examples/polly-generate-speech/Cargo.toml

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[package]

name = "polly-generate-speech"

version = "0.1.0"

authors = ["Russell Cohen <rcoh@amazon.com>"]

edition = "2018"



# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html



[dependencies]

polly = { path = "../../build/aws-sdk/polly"}

tokio = { version = "1", features = ["full"] }

aws/sdk/examples/polly-generate-speech/src/main.rs

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use polly::model::{Engine, OutputFormat, VoiceId};

use std::error::Error;

use tokio::fs::File;

use tokio::io::AsyncWriteExt;



#[tokio::main]

async fn main() -> Result<(), Box<dyn Error + Send + Sync + 'static>> {

    let client = polly::fluent::Client::from_env();

    let resp = client

        .synthesize_speech()

        .voice_id(VoiceId::Emma)

        .engine(Engine::Neural)

        .output_format(OutputFormat::Mp3)

        .text("Hello, I am polly!")

        .send()

        .await?;

    let audio = resp.audio_stream.expect("data should be included");

    let mut file = File::create("audio.mp3").await?;

    file.write_all(audio.as_ref()).await?;

    println!(

        "Audio written to audio.mp3 ({} bytes)",

        audio.as_ref().len()

    );

    Ok(())

}

aws/sdk/examples/polly-helloworld/Cargo.toml

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[package]

name = "polly-helloworld"

version = "0.1.0"

authors = ["Russell Cohen <rcoh@amazon.com>"]

edition = "2018"



# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html



[dependencies]

polly = { path = "../../build/aws-sdk/polly"}

tokio = { version = "1", features = ["full"] }

aws/sdk/examples/polly-helloworld/src/main.rs

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use polly::model::{Engine, Voice};

use std::error::Error;



#[tokio::main]

async fn main() -> Result<(), Box<dyn Error + Send + Sync + 'static>> {

    let client = polly::fluent::Client::from_env();

    let mut tok = None;

    let mut voices: Vec<Voice> = vec![];

    // Below is an an example of how pagination can be implemented manually.

    loop {

        let mut req = client.describe_voices();

        if let Some(tok) = tok {

            req = req.next_token(tok);

        }

        let resp = req.send().await?;

        for voice in resp.voices.unwrap_or_default() {

            println!(

                "I can speak as: {} in {:?}",

                voice.name.as_ref().unwrap(),

                voice.language_name.as_ref().unwrap()

            );

            voices.push(voice);

        }

        tok = match resp.next_token {

            Some(next) => Some(next),

            None => break,

        };

    }

    let neural_voices = voices

        .iter()

        .filter(|voice| {

            voice

                .supported_engines

                .as_deref()

                .unwrap_or_default()

                .contains(&Engine::Neural)

        })

        .map(|voice| voice.id.as_ref().unwrap())

        .collect::<Vec<_>>();



    println!("Voices supporting a neural engine: {:?}", neural_voices);

    Ok(())

}