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269
discord_embed/main.py
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269
discord_embed/main.py
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import sys
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from datetime import datetime
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from pathlib import Path
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from typing import Dict
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import ffmpeg
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from dhooks import Webhook
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from fastapi import FastAPI, File, UploadFile
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from fastapi.responses import HTMLResponse
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from pygments import highlight
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from pygments.formatters import HtmlFormatter
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from pygments.lexers import guess_lexer
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from discord_embed.settings import Settings
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hook = Webhook(Settings.webhook_url)
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app = FastAPI(
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title="discord-nice-embed",
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description=Settings.description,
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version="0.0.1",
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contact={
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"name": "Joakim Hellsén",
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"url": "https://github.com/TheLovinator1",
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"email": "tlovinator@gmail.com",
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},
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license_info={
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"name": "GPL-3.0",
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"url": "https://www.gnu.org/licenses/gpl-3.0.txt",
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},
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)
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def normal_file_uploaded(file: UploadFile) -> Dict[str, str]:
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"""Save file to disk and return URL.
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Args:
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file (UploadFile): Our file object.
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Returns:
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Dict[str, str]: Returns URL for file.
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"""
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# Save file to disk.
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with open(f"{Settings.upload_folder}/{file.filename}", "wb+") as file_object:
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file_object.write(file.file.read())
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hook.send(f"{Settings.domain}/{file.filename} was uploaded.")
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return {"html_url": f"{Settings.domain}/{file.filename}"}
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def video_file_uploaded(file: UploadFile) -> Dict[str, str]:
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"""Save video to disk, generate HTML, thumbnail, and return the .HTML file instead of the file.
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Args:
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file (UploadFile): Our file object.
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Returns:
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Dict[str, str]: Returns URL for video.
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"""
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# Create folder if it doesn't exist.
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Path(f"{Settings.upload_folder}/video").mkdir(parents=True, exist_ok=True)
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# Save file to disk.
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with open(f"{Settings.upload_folder}/video/{file.filename}", "wb+") as file_object:
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file_object.write(file.file.read())
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file_url = f"{Settings.domain}/video/{file.filename}"
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file_location = f"{Settings.upload_folder}/video/{file.filename}"
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height, width = find_video_resolution(file_location)
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screenshot_url = make_thumbnail_from_video(file_location, file.filename)
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html_url = generate_html_for_videos(
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filename=file.filename, url=file_url, width=width, height=height, screenshot=screenshot_url
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)
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hook.send(f"{Settings.domain}/{file.filename} was uploaded.")
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return {"html_url": f"{html_url}"}
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def text_file_uploaded(file: UploadFile) -> Dict[str, str]:
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"""Save file to disk and return URL.
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Args:
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file (UploadFile): Our file object.
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Returns:
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Dict[str, str]: Returns URL for file.
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"""
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# Create folder if it doesn't exist.
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Path(f"{Settings.upload_folder}/text").mkdir(parents=True, exist_ok=True)
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save_location = f"{Settings.upload_folder}/text/{file.filename}"
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# Save file to disk.
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with open(save_location, "wb+") as file_object:
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file_object.write(file.file.read())
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with open(save_location, encoding="utf-8") as file_object:
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lines = file_object.read()
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colored_text = highlight(
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lines,
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guess_lexer(lines),
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HtmlFormatter(
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style="fruity", # Dark style
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linenos="table", # Output line numbers as a table w/ two cells, one with line numbers, other with code
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full=True, # Use inline styles instead of CSS classes.
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filename=f"{file.filename}",
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),
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)
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with open(f"{Settings.upload_folder}/{file.filename}.html", "w", encoding="utf-8") as file_object:
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file_object.write(colored_text)
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html_url = f"{Settings.domain}/{file.filename}.html"
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hook.send(f"{html_url} was uploaded.")
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return {"html_url": f"{html_url}"}
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@app.post("/uploadfiles/")
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async def upload_file(file: UploadFile = File(...)) -> Dict[str, str]:
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"""Page for uploading files.
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If it is a video, we need to make a HTML file, and a thumbnail otherwise we can just save
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the file and return the URL for it.
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If something goes wrong, we will send a message to Discord.
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Args:
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file (UploadFile): Our uploaded file.
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Returns:
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Dict[str, str]: Returns a dict with the filename or a link to the .html if it was a video.
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"""
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try:
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if file.content_type.startswith("video/"):
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return video_file_uploaded(file)
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if (
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# TODO: This needs to be better and include more things.
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file.content_type.startswith("text/")
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or file.content_type.startswith("application/json")
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or file.content_type.startswith("application/x-sh")
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or file.content_type.startswith("application/xml")
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):
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return text_file_uploaded(file)
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with open(f"{Settings.upload_folder}/{file.filename}", "wb+") as file_object:
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file_object.write(file.file.read())
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hook.send(f"{Settings.domain}/{file.filename} was uploaded.")
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return {"html_url": f"{Settings.domain}/{file.filename}"}
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except Exception as e:
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# TODO: Change response code to 400.
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hook.send(f"Something went wrong for {Settings.domain}/{file.filename}:\n{e}")
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return {"error": f"Something went wrong: {e}"}
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@app.get("/", response_class=HTMLResponse)
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async def main():
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"""Our index view.
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You can upload files here.
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Returns:
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HTMLResponse: Returns HTML for site.
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"""
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return """
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<!DOCTYPE html>
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<html>
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<head>
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<title>discord-nice-embed</title>
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</head>
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<body>
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<a href="/docs">Swagger UI - API documentation</a>
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<a href="/redoc">ReDoc - Alternative API documentation</a>
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<form action="/uploadfiles/" enctype="multipart/form-data" method="post">
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<input name="file" type="file">
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<input type="submit">
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</form>
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</body>
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</html>
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"""
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def generate_html_for_videos(url: str, width: int, height: int, screenshot: str, filename: str) -> str:
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"""Generate HTML for video files.
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This is what we will send to other people on Discord.
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You can remove the .html with your web server so the link will look normal.
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For example, with nginx, you can do this(note the $uri.html):
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location / {
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try_files $uri $uri/ $uri.html;
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}
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Args:
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url (str): URL for the video. This is accessible from the browser.
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width (int): This is the width of the video.
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height (int): This is the height of the video.
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screenshot (str): URL for screenshot. This is what you will see in Discord.
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filename (str): Original video filename. We will append .html to the filename.
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Returns:
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str: [description]
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"""
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video_html = f"""
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<!DOCTYPE html>
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<html>
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<!-- Generated at {datetime.now().strftime('%Y-%m-%d %H:%M:%S')} -->
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<head>
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<meta property="og:type" content="video.other">
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<meta property="twitter:player" content="{url}">
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<meta property="og:video:type" content="text/html">
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<meta property="og:video:width" content="{width}">
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<meta property="og:video:height" content="{height}">
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<meta name="twitter:image" content="{screenshot}">
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<meta http-equiv="refresh" content="0;url={url}">
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</head>
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</html>
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"""
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html_url = f"{Settings.domain}/{filename}"
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# Take the filename and append .html to it.
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filename += ".html"
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with open(f"{Settings.upload_folder}/{filename}", "w", encoding="utf-8") as file:
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file.write(video_html)
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return html_url
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def find_video_resolution(path_to_video: str) -> tuple[int, int]:
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"""Find video resolution.
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Args:
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path_to_video (str): Path to video file.
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Returns:
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tuple[int, int]: Returns height and width.
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"""
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probe = ffmpeg.probe(path_to_video)
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video_stream = next(
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(stream for stream in probe["streams"] if stream["codec_type"] == "video"),
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None,
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)
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if video_stream is None:
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print("No video stream found", file=sys.stderr)
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sys.exit(1)
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width = int(video_stream["width"])
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height = int(video_stream["height"])
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return height, width
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def make_thumbnail_from_video(path_video: str, file_filename: str) -> str:
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"""Make thumbnail for Discord. This is a screenshot of the video.
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Args:
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path_video (str): Path where video file is stored.
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file_filename (str): File name for URL.
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Returns:
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str: Returns thumbnail filename.
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"""
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(
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ffmpeg.input(path_video, ss="1") # Take a screenshot at 1 second.
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.output(f"{Settings.upload_folder}/{file_filename}.jpg", vframes=1) # Output to file.
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.overwrite_output() # Overwrite output.
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.run() # Run.
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)
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# Return URL for thumbnail.
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return f"{Settings.domain}/{file_filename}.jpg"
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