musicgpt 0.3.1

Generate music samples from natural language prompt locally with your own computer
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144

use std::collections::VecDeque;
use std::time::Duration;

use async_trait::async_trait;
use rand::distributions::Alphanumeric;
use rand::{Rng, thread_rng};

use crate::backend::audio_generation_fanout::{AudioGenerationError, AudioGenerationProgress, AudioGenerationResult, AudioGenerationStart, GenerationMessage};
use crate::backend::audio_generation_backend::{AudioGenerationRequest, BackendOutboundMsg, JobProcessor};
use crate::backend::music_gpt_chat::Chat;
use crate::backend::music_gpt_ws_handler::{Info, OutboundMsg};
use crate::storage::AppFs;

impl OutboundMsg {
    pub(crate) fn unwrap_info(self) -> Info {
        match self {
            OutboundMsg::Info(p) => p,
            _ => panic!("msg was not OutboundMsg::Init, it was {self:?}"),
        }
    }

    pub(crate) fn unwrap_chats(self) -> Vec<Chat> {
        match self {
            OutboundMsg::Chats(p) => p,
            _ => panic!("msg was not OutboundMsg::Chats, it was {self:?}"),
        }
    }

    pub(crate) fn unwrap_start(self) -> AudioGenerationStart {
        match self {
            OutboundMsg::Generation(GenerationMessage::Start(p)) => p,
            _ => panic!("msg was not GenerationMessage::Start, it was {self:?}"),
        }
    }

    pub(crate) fn unwrap_progress(self) -> AudioGenerationProgress {
        match self {
            OutboundMsg::Generation(GenerationMessage::Progress(p)) => p,
            _ => panic!("msg was not GenerationMessage::Progress, it was {self:?}"),
        }
    }

    pub(crate) fn unwrap_result(self) -> AudioGenerationResult {
        match self {
            OutboundMsg::Generation(GenerationMessage::Result(p)) => p,
            _ => panic!("msg was not GenerationMessage::Result, it was {self:?}"),
        }
    }

    pub(crate) fn unwrap_err(self) -> AudioGenerationError {
        match self {
            OutboundMsg::Generation(GenerationMessage::Error(p)) => p,
            _ => panic!("msg was not GenerationMessage::Error, it was {self:?}"),
        }
    }
}

impl BackendOutboundMsg {
    pub(crate) fn unwrap_start(self) -> AudioGenerationRequest {
        match self {
            BackendOutboundMsg::Start(p) => p,
            _ => panic!("msg was not Progress, it was {self:?}"),
        }
    }

    pub(crate) fn unwrap_progress(self) -> (String, f32) {
        match self {
            BackendOutboundMsg::Progress(p) => p,
            _ => panic!("msg was not Progress, it was {self:?}"),
        }
    }

    pub(crate) fn unwrap_response(self) -> (String, VecDeque<f32>) {
        match self {
            BackendOutboundMsg::Response(p) => p,
            _ => panic!("msg was not Response, it was {self:?}"),
        }
    }

    pub(crate) fn unwrap_err(self) -> (String, String) {
        match self {
            BackendOutboundMsg::Failure(p) => p,
            _ => panic!("msg was not Failure, it was {self:?}"),
        }
    }
}

#[derive(Default)]
pub struct DummyJobProcessor {
    wait_scale: Duration,
}

impl DummyJobProcessor {
    pub fn new(wait_scale: Duration) -> Self {
        Self { wait_scale }
    }
}

#[async_trait]
impl JobProcessor for DummyJobProcessor {
    fn name(&self) -> String {
        "Dummy".to_string()
    }

    fn device(&self) -> String {
        "Cpu".to_string()
    }

    fn process(
        &self,
        prompt: &str,
        secs: usize,
        on_progress: Box<dyn Fn(f32) -> bool + Sync + Send + 'static>,
    ) -> ort::Result<VecDeque<f32>> {
        let mut result = VecDeque::new();
        for i in 0..secs {
            if prompt == format!("fail at {i}") {
                return Err(ort::Error::CustomError(format!("Failed at {i}").into()));
            }
            std::thread::sleep(self.wait_scale);
            result.push_back(i as f32);
            let should_exit = on_progress(result.len() as f32 / secs as f32);
            if should_exit {
                return Err(ort::Error::CustomError("Aborted".into()));
            }
        }

        Ok(result)
    }
}

pub fn rand_string() -> String {
    thread_rng()
        .sample_iter(&Alphanumeric)
        .take(7)
        .map(char::from)
        .collect()
}

impl AppFs {
    pub fn new_tmp() -> Self {
        Self::new(format!("/tmp/musicgpt-tests/{}", rand_string()))
    }
}