app.py

from functools import partial
import os

import torch
import numpy as np
import gradio as gr
import random
import shutil

print(f"Is CUDA available: {torch.cuda.is_available()}")
print(f"CUDA device: {torch.cuda.get_device_name(torch.cuda.current_device())}")

WEBSITE = """
<div class="embed_hidden">
<h1 style='text-align: center'> MoMask: Generative Masked Modeling of 3D Human Motions </h1>
<h2 style='text-align: center'>
<a href="https://ericguo5513.github.io" target="_blank"><nobr>Chuan Guo*</nobr></a> &emsp;
<a href="https://yxmu.foo/" target="_blank"><nobr>Yuxuan Mu*</nobr></a> &emsp;
<a href="https://scholar.google.com/citations?user=w4e-j9sAAAAJ&hl=en" target="_blank"><nobr>Muhammad Gohar Javed*</nobr></a> &emsp;
<a href="https://sites.google.com/site/senwang1312home/" target="_blank"><nobr>Sen Wang</nobr></a> &emsp;
<a href="https://www.ece.ualberta.ca/~lcheng5/" target="_blank"><nobr>Li Cheng</nobr></a>
</h2>
<h2 style='text-align: center'>
<nobr>arXiv 2023</nobr>
</h2>
<h3 style="text-align:center;">
<a target="_blank" href="https://arxiv.org/abs/2312.00063"> <button type="button" class="btn btn-primary btn-lg"> Paper </button></a> &ensp;
<a target="_blank" href="https://github.com/EricGuo5513/momask-codes"> <button type="button" class="btn btn-primary btn-lg"> Code </button></a> &ensp;
<a target="_blank" href="https://ericguo5513.github.io/momask/"> <button type="button" class="btn btn-primary btn-lg"> Webpage </button></a> &ensp;
<a target="_blank" href="https://ericguo5513.github.io/source_files/momask_2023_bib.txt"> <button type="button" class="btn btn-primary btn-lg"> BibTex </button></a>
</h3>
<h3> Description </h3>
<p>
🔥🔥🔥This space presents an interactive demo for <a href='https://ericguo5513.github.io/momask/' target='_blank'><b>MoMask</b></a>, a method for text-to-motion generation. Motion editing, uploading and .bvh downloading are coming soon!!! 🚀🚀
</p>
<p>
😁😁If you find this demo interesting, we would appreciate your star on our github.🫶🫶
</p>
</div>
"""
WEBSITE_bottom = """
<p>
We thanks <a href="https://huggingface.co/spaces/Mathux/TMR" target="_blank">TMR</a> for this cool space template.
</p>
</div>
"""

EXAMPLES = [
   "This person kicks with his right leg then jabs several times.",
   "A person stands for few seconds and picks up his arms and shakes them.",
   "A person stands, crosses left leg in front of the right, lowering themselves until they are sitting, both hands on the floor before standing and uncrossing legs.",
   "A person is running on a treadmill.",
   "A person walks with a limp, their left leg gets injured.",
   "A person repeatedly blocks their face with their right arm.",
   "The person holds his left foot with his left hand, puts his right foot up and left hand up too.",
   "A person walks in a clokwise circle and stops where he began.",
   "A man bends down and picks something up with his right hand.",
   "The man walked forward, spun right on one foot and walked back to his original position.",
   "A man is walking forward then steps over an object then continues walking forward.",
   "This person takes 4 steps forward staring with his right foot.",
   "The person did a kick spin to the left.",
   "A figure streches it hands and arms above its head.",
   "The person takes 4 steps backwards.",
   "A person jumps up and then lands.",
   "The person was pushed but did not fall.",
   "The person does a salsa dance."
]

# Show closest text in the training


# css to make videos look nice
# var(--block-border-color); TODO
CSS = """
.generate_video {
    position: relative;
    margin: 0;
    box-shadow: var(--block-shadow);
    border-width: var(--block-border-width);
    border-color: #000000;
    border-radius: var(--block-radius);
    background: var(--block-background-fill);
    width: 100%;
    line-height: var(--line-sm);
}
}
"""


DEFAULT_TEXT = "A person is "

def generate(
    text, uid, motion_length=0, seed=10107, repeat_times=4,
):
    os.system(f'python gen_t2m.py --gpu_id 0 --seed {seed} --ext {uid} --repeat_times {repeat_times} --motion_length {motion_length} --text_prompt "{text}"')
    datas = []
    file_name = [name for name in os.listdir(f"./generation/{uid}/animations/0/") if name.endswith('_ik.mp4')][0]
    motion_length = int(file_name.split('len')[-1].replace('_ik.mp4', ''))
    for n in range(repeat_times):
        data_unit = {
            "url": f"generation/{uid}/animations/0/sample0_repeat{n}_len{motion_length}_ik.mp4"
            }
        datas.append(data_unit)
    print(datas)
    return datas


# HTML component
def get_video_html(data, video_id, width=700, height=700):
    url = data["url"]
    # class="wrap default svelte-gjihhp hide"
    # <div class="contour_video" style="position: absolute; padding: 10px;">
    # width="{width}" height="{height}"
    video_html = f"""
<video class="generate_video" width="{width}" height="{height}" preload="auto" muted playsinline onpause="this.load()"
autoplay loop disablepictureinpicture id="{video_id}">
  <source src="file/{url}" type="video/mp4">
  Your browser does not support the video tag.
</video>
"""
    return video_html


def generate_component(generate_function, text):
    if text == DEFAULT_TEXT or text == "" or text is None:
        return [None for _ in range(4)]
    uid = random.randrange(99999)
    datas = generate_function(text, uid)
    htmls = [get_video_html(data, idx) for idx, data in enumerate(datas)]
    return htmls


if not os.path.exists("checkpoints/t2m"):
    os.system("bash prepare/download_models_demo.sh")


device = torch.device("cuda" if torch.cuda.is_available() else "cpu")

# LOADING

# DEMO
theme = gr.themes.Default(primary_hue="blue", secondary_hue="gray")
generate_and_show = partial(generate_component, generate)

with gr.Blocks(css=CSS, theme=theme) as demo:
    gr.Markdown(WEBSITE)
    videos = []

    with gr.Row():
        with gr.Column(scale=3):
            with gr.Column(scale=2):
                text = gr.Textbox(
                    show_label=True,
                    label="Text prompt",
                    value=DEFAULT_TEXT,
                )
            with gr.Column(scale=1):
                gen_btn = gr.Button("Generate", variant="primary")
                clear = gr.Button("Clear", variant="secondary")

        with gr.Column(scale=2):

            def generate_example(text):
                return generate_and_show(text)

            examples = gr.Examples(
                examples=[[x, None, None] for x in EXAMPLES],
                inputs=[text],
                examples_per_page=20,
                run_on_click=False,
                cache_examples=False,
                fn=generate_example,
                outputs=[],
            )

    i = -1
    # should indent
    for _ in range(1):
        with gr.Row():
            for _ in range(4):
                i += 1
                video = gr.HTML()
                videos.append(video)
    gr.Markdown(WEBSITE_bottom)
    # connect the examples to the output
    # a bit hacky
    examples.outputs = videos

    def load_example(example_id):
        processed_example = examples.non_none_processed_examples[example_id]
        return gr.utils.resolve_singleton(processed_example)

    examples.dataset.click(
        load_example,
        inputs=[examples.dataset],
        outputs=examples.inputs_with_examples,  # type: ignore
        show_progress=False,
        postprocess=False,
        queue=False,
    ).then(fn=generate_example, inputs=examples.inputs, outputs=videos)

    gen_btn.click(
        fn=generate_and_show,
        inputs=[text],
        outputs=videos,
    )
    text.submit(
        fn=generate_and_show,
        inputs=[text],
        outputs=videos,
    )

    def clear_videos():
        shutil.rmtree('./generation')
        return [None for x in range(4)] + [DEFAULT_TEXT]

    clear.click(fn=clear_videos, outputs=videos + [text])

demo.launch()