app.py

import gradio as gr
import torch
from transformers import pipeline
from transformers import AutoProcessor, MusicgenForConditionalGeneration
import scipy
import wave
import io

def generate_music(text):
    processor = AutoProcessor.from_pretrained("facebook/musicgen-small")
    model = MusicgenForConditionalGeneration.from_pretrained("facebook/musicgen-small")
    
    inputs = processor(
        text=text,
        padding=True,
        return_tensors="pt",
    )
    audio_values = model.generate(**inputs, do_sample=True, guidance_scale=3
, max_new_tokens=1350)
    sampling_rate = model.config.audio_encoder.sampling_rate
    scipy.io.wavfile.write("musicgen_out.wav", rate=sampling_rate, data=audio_values[0, 0].numpy())
    file_path= "musicgen_out.wav"
    
    try:
        Audio = gr.Audio(file_path)
        return Audio
    except Exception as e:
        return str(e)


# 创建 Gradio Blocks 界面
iface = gr.Blocks(theme=gr.themes.Monokai)

with iface as demo:
    # 创建一个列容器
    with gr.Row():
        # 在左侧列中添加文本输入框
        with gr.Column(scale=1):
            input_text = gr.Textbox(lines=2, placeholder="Please enter your lyric here...")
            example_demo = gr.Markdown("## Example Demo\n\nHere is an example demo for you to try.")
            company_intro = gr.Markdown("## Company Introduction\n\nHere you can add information about your company.")
        
        # 在右侧列中添加音频输出组件
        with gr.Column(scale=3):
            output_audio = gr.Audio(label="Generated Music")
            generate_button = gr.Button("Generate Music")
            generate_button.click(fn=generate_music, inputs=input_text, outputs=output_audio)
    
    # 设置网页背景
    demo.style.background_image = gr.Image.open("background.png")
    demo.style.backgroundRepeat = "no-repeat"
    demo.style.backgroundSize = "cover"

    # 在网页左上方加入公司logo
    with gr.Row():
        gr.Image("logo.jpg", width=100)

    
# 启动界面
demo.queue(max_size=4).launch(share = True)


# demo = gr.Interface(
#   fn=generate_music,
#   inputs='text',
#   outputs='audio',
# )

# demo.queue(max_size=4).launch(share = True)