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115 lines
4.3 KiB
115 lines
4.3 KiB
import json
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import random
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import re
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from pathlib import Path
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from random import randrange
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from typing import Any, Tuple
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from moviepy.editor import VideoFileClip
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from moviepy.video.io.ffmpeg_tools import ffmpeg_extract_subclip
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from utils import settings
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from utils.console import print_step, print_substep
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import yt_dlp
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# Load background videos
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with open("./utils/backgrounds.json") as json_file:
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background_options = json.load(json_file)
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# Remove "__comment" from backgrounds
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background_options.pop("__comment", None)
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# Add position lambda function
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# (https://zulko.github.io/moviepy/ref/VideoClip/VideoClip.html#moviepy.video.VideoClip.VideoClip.set_position)
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for name in list(background_options.keys()):
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pos = background_options[name][3]
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if pos != "center":
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background_options[name][3] = lambda t: ("center", pos + t)
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def get_start_and_end_times(video_length: int, length_of_clip: int) -> Tuple[int, int]:
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"""Generates a random interval of time to be used as the background of the video.
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Args:
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video_length (int): Length of the video
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length_of_clip (int): Length of the video to be used as the background
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Returns:
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tuple[int,int]: Start and end time of the randomized interval
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"""
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random_time = randrange(180, int(length_of_clip) - int(video_length))
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return random_time, random_time + video_length
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def get_background_config():
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"""Fetch the background/s configuration"""
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try:
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choice = str(
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settings.config["settings"]["background"]["background_choice"]
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).casefold()
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except AttributeError:
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print_substep("No background selected. Picking random background'")
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choice = None
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# Handle default / not supported background using default option.
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# Default : pick random from supported background.
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if not choice or choice not in background_options or choice == "random":
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choice = random.choice(list(background_options.keys()))
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return background_options[choice]
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def download_background(background_config: Tuple[str, str, str, Any]):
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"""Downloads the background/s video from YouTube."""
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Path("./assets/backgrounds/").mkdir(parents=True, exist_ok=True)
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# note: make sure the file name doesn't include an - in it
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uri, filename, credit, _ = background_config
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if Path(f"assets/backgrounds/{credit}-{filename}").is_file():
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return
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print_step(
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"We need to download the backgrounds videos. they are fairly large but it's only done once. 😎"
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)
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print_substep("Downloading the backgrounds videos... please be patient 🙏 ")
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print_substep(f"Downloading {filename} from {uri}")
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ydl_opts = {
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'format': "bestvideo[height<=1080][ext=mp4]",
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"outtmpl": f"assets/backgrounds/{credit}-{filename}",
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"retries": 10,
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}
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with yt_dlp.YoutubeDL(ydl_opts) as ydl:
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ydl.download(uri)
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print_substep("Background video downloaded successfully! 🎉", style="bold green")
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def chop_background_video(
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background_config: Tuple[str, str, str, Any], video_length: int, reddit_object: dict
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):
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"""Generates the background footage to be used in the video and writes it to assets/temp/background.mp4
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Args:
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background_config (Tuple[str, str, str, Any]) : Current background configuration
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video_length (int): Length of the clip where the background footage is to be taken out of
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"""
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print_step("Finding a spot in the backgrounds video to chop...✂️")
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choice = f"{background_config[2]}-{background_config[1]}"
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id = re.sub(r"[^\w\s-]", "", reddit_object["thread_id"])
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background = VideoFileClip(f"assets/backgrounds/{choice}")
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start_time, end_time = get_start_and_end_times(video_length, background.duration)
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try:
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ffmpeg_extract_subclip(
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f"assets/backgrounds/{choice}",
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start_time,
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end_time,
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targetname=f"assets/temp/{id}/background.mp4",
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)
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except (OSError, IOError): # ffmpeg issue see #348
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print_substep("FFMPEG issue. Trying again...")
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with VideoFileClip(f"assets/backgrounds/{choice}") as video:
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new = video.subclip(start_time, end_time)
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new.write_videofile(f"assets/temp/{id}/background.mp4")
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print_substep("Background video chopped successfully!", style="bold green")
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return background_config[2]
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