utils.py

import os
import random
import subprocess
import uuid

import numpy as np
import torch


def key_frame(video_path, output_path=None):
    if output_path is None:
        output_path = video_path.replace(".mp4", ".jpg")
    print(f"Extracting a key frame from {video_path}")
    cmd = [
        "ffmpeg",
        "-i",
        video_path,
        "-vf",
        "select=eq(n\,0)",
        "-q:v",
        "2",
        "-f",
        "image2",
        output_path,
    ]
    subprocess.run(cmd)


if __name__ == "__main__":
    key_frame("/Users/fengyuli/Desktop/temp.mp4")


def seed_everything(seed):
    random.seed(seed)
    np.random.seed(seed)
    torch.manual_seed(seed)
    torch.cuda.manual_seed_all(seed)
    return seed


def prompts(name, description):
    def decorator(func):
        func.name = name
        func.description = description
        return func

    return decorator


def cut_dialogue_history(history_memory, keep_last_n_words=500):
    tokens = history_memory.split()
    n_tokens = len(tokens)
    print(f"hitory_memory:{history_memory}, n_tokens: {n_tokens}")
    if n_tokens < keep_last_n_words:
        return history_memory
    else:
        paragraphs = history_memory.split('\n')
        last_n_tokens = n_tokens
        while last_n_tokens >= keep_last_n_words:
            last_n_tokens = last_n_tokens - len(paragraphs[0].split(' '))
            paragraphs = paragraphs[1:]
        return '\n' + '\n'.join(paragraphs)


def get_new_image_name(org_img_name, func_name="update"):
    head_tail = os.path.split(org_img_name)
    head = head_tail[0]
    tail = head_tail[1]
    name_split = tail.split('.')[0].split('_')
    this_new_uuid = str(uuid.uuid4())[0:4]
    if len(name_split) == 1:
        most_org_file_name = name_split[0]
        recent_prev_file_name = name_split[0]
        new_file_name = '{}_{}_{}_{}.png'.format(this_new_uuid, func_name, recent_prev_file_name, most_org_file_name)
    else:
        assert len(name_split) == 4
        most_org_file_name = name_split[3]
        recent_prev_file_name = name_split[0]
        new_file_name = '{}_{}_{}_{}.png'.format(this_new_uuid, func_name, recent_prev_file_name, most_org_file_name)
    return os.path.join(head, new_file_name)