mirror of
https://github.com/ihabunek/twitch-dl
synced 2024-08-30 18:32:25 +00:00
310 lines
9.7 KiB
Python
310 lines
9.7 KiB
Python
import asyncio
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import platform
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import re
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import shutil
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import subprocess
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import tempfile
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from pathlib import Path
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from typing import List, Optional
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from urllib.parse import urlencode, urlparse
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import click
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import httpx
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from twitchdl import twitch, utils
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from twitchdl.download import download_file
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from twitchdl.entities import DownloadOptions
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from twitchdl.exceptions import ConsoleError
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from twitchdl.http import download_all
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from twitchdl.naming import clip_filename, video_filename
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from twitchdl.output import blue, bold, green, print_log, yellow
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from twitchdl.playlists import (
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enumerate_vods,
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load_m3u8,
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make_join_playlist,
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parse_playlists,
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select_playlist,
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)
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from twitchdl.twitch import Chapter, ClipAccessToken, Video
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def download(ids: List[str], args: DownloadOptions):
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if not ids:
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print_log("No IDs to downlad given")
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return
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for video_id in ids:
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download_one(video_id, args)
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def download_one(video: str, args: DownloadOptions):
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video_id = utils.parse_video_identifier(video)
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if video_id:
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return _download_video(video_id, args)
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clip_slug = utils.parse_clip_identifier(video)
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if clip_slug:
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return _download_clip(clip_slug, args)
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raise ConsoleError(f"Invalid input: {video}")
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def _join_vods(playlist_path: Path, target: str, overwrite: bool, video: Video):
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description = video["description"] or ""
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description = description.strip()
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command: List[str] = [
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"ffmpeg",
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"-i",
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str(playlist_path),
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"-c",
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"copy",
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"-metadata",
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f"artist={video['creator']['displayName']}",
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"-metadata",
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f"title={video['title']}",
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"-metadata",
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f"description={description}",
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"-metadata",
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"encoded_by=twitch-dl",
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"-stats",
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"-loglevel",
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"warning",
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f"file:{target}",
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]
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if overwrite:
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command.append("-y")
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click.secho(f"{' '.join(command)}", dim=True)
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result = subprocess.run(command)
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if result.returncode != 0:
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raise ConsoleError("Joining files failed")
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def _concat_vods(vod_paths: List[Path], target: str):
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tool = "type" if platform.system() == "Windows" else "cat"
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command = [tool] + [str(p) for p in vod_paths]
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with open(target, "wb") as target_file:
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result = subprocess.run(command, stdout=target_file)
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if result.returncode != 0:
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raise ConsoleError(f"Joining files failed: {result.stderr}")
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def _crete_temp_dir(base_uri: str) -> Path:
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"""Create a temp dir to store downloads if it doesn't exist."""
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path = urlparse(base_uri).path.lstrip("/")
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temp_dir = Path(tempfile.gettempdir(), "twitch-dl", path)
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temp_dir.mkdir(parents=True, exist_ok=True)
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return temp_dir
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def _get_clip_url(access_token: ClipAccessToken, quality: Optional[str]) -> str:
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qualities = access_token["videoQualities"]
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# Quality given as an argument
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if quality:
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if quality == "source":
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return qualities[0]["sourceURL"]
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selected_quality = quality.rstrip("p") # allow 720p as well as 720
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for q in qualities:
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if q["quality"] == selected_quality:
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return q["sourceURL"]
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available = ", ".join([str(q["quality"]) for q in qualities])
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msg = f"Quality '{quality}' not found. Available qualities are: {available}"
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raise ConsoleError(msg)
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# Ask user to select quality
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click.echo("\nAvailable qualities:")
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for n, q in enumerate(qualities):
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click.echo(f"{n + 1}) {bold(q['quality'])} [{q['frameRate']} fps]")
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click.echo()
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no = utils.read_int("Choose quality", min=1, max=len(qualities), default=1)
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selected_quality = qualities[no - 1]
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return selected_quality["sourceURL"]
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def get_clip_authenticated_url(slug: str, quality: Optional[str]):
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print_log("Fetching access token...")
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access_token = twitch.get_clip_access_token(slug)
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if not access_token:
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raise ConsoleError(f"Access token not found for slug '{slug}'")
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url = _get_clip_url(access_token, quality)
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query = urlencode(
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{
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"sig": access_token["playbackAccessToken"]["signature"],
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"token": access_token["playbackAccessToken"]["value"],
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}
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)
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return f"{url}?{query}"
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def _download_clip(slug: str, args: DownloadOptions) -> None:
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print_log("Looking up clip...")
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clip = twitch.get_clip(slug)
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if not clip:
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raise ConsoleError(f"Clip '{slug}' not found")
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title = clip["title"]
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user = clip["broadcaster"]["displayName"]
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game = clip["game"]["name"] if clip["game"] else "Unknown"
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duration = utils.format_duration(clip["durationSeconds"])
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click.echo(f"Found: {green(title)} by {yellow(user)}, playing {blue(game)} ({duration})")
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target = Path(clip_filename(clip, args.output))
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click.echo(f"Target: {blue(target)}")
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if not args.overwrite and target.exists():
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response = click.prompt("File exists. Overwrite? [Y/n]", default="Y", show_default=False)
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if response.lower().strip() != "y":
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raise click.Abort()
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args.overwrite = True
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url = get_clip_authenticated_url(slug, args.quality)
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print_log(f"Selected URL: {url}")
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if args.dry_run:
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click.echo("Dry run, clip not downloaded.")
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else:
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print_log("Downloading clip...")
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download_file(url, target)
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click.echo(f"Downloaded: {blue(target)}")
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def _download_video(video_id: str, args: DownloadOptions) -> None:
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if args.start and args.end and args.end <= args.start:
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raise ConsoleError("End time must be greater than start time")
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print_log("Looking up video...")
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video = twitch.get_video(video_id)
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if not video:
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raise ConsoleError(f"Video {video_id} not found")
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click.echo(f"Found: {blue(video['title'])} by {yellow(video['creator']['displayName'])}")
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target = Path(video_filename(video, args.format, args.output))
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click.echo(f"Output: {blue(target)}")
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if not args.overwrite and target.exists():
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response = click.prompt("File exists. Overwrite? [Y/n]", default="Y", show_default=False)
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if response.lower().strip() != "y":
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raise click.Abort()
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args.overwrite = True
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# Chapter select or manual offset
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start, end = _determine_time_range(video_id, args)
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print_log("Fetching access token...")
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access_token = twitch.get_access_token(video_id, auth_token=args.auth_token)
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print_log("Fetching playlists...")
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playlists_text = twitch.get_playlists(video_id, access_token)
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playlists = parse_playlists(playlists_text)
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playlist = select_playlist(playlists, args.quality)
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print_log("Fetching playlist...")
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vods_text = http_get(playlist.url)
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vods_m3u8 = load_m3u8(vods_text)
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vods = enumerate_vods(vods_m3u8, start, end)
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if args.dry_run:
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click.echo("Dry run, video not downloaded.")
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return
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base_uri = re.sub("/[^/]+$", "/", playlist.url)
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target_dir = _crete_temp_dir(base_uri)
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# Save playlists for debugging purposes
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with open(target_dir / "playlists.m3u8", "w") as f:
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f.write(playlists_text)
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with open(target_dir / "playlist.m3u8", "w") as f:
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f.write(vods_text)
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click.echo(f"\nDownloading {len(vods)} VODs using {args.max_workers} workers to {target_dir}")
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sources = [base_uri + vod.path for vod in vods]
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targets = [target_dir / f"{vod.index:05d}.ts" for vod in vods]
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asyncio.run(download_all(sources, targets, args.max_workers, rate_limit=args.rate_limit))
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join_playlist = make_join_playlist(vods_m3u8, vods, targets)
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join_playlist_path = target_dir / "playlist_downloaded.m3u8"
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join_playlist.dump(join_playlist_path) # type: ignore
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click.echo()
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if args.no_join:
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print_log("Skipping joining files...")
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click.echo(f"VODs downloaded to:\n{blue(target_dir)}")
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return
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if args.concat:
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print_log("Concating files...")
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_concat_vods(targets, target)
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else:
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print_log("Joining files...")
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_join_vods(join_playlist_path, target, args.overwrite, video)
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click.echo()
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if args.keep:
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click.echo(f"Temporary files not deleted: {target_dir}")
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else:
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print_log("Deleting temporary files...")
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shutil.rmtree(target_dir)
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click.echo(f"\nDownloaded: {green(target)}")
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def http_get(url: str) -> str:
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response = httpx.get(url)
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response.raise_for_status()
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return response.text
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def _determine_time_range(video_id: str, args: DownloadOptions):
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if args.start or args.end:
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return args.start, args.end
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if args.chapter is not None:
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print_log("Fetching chapters...")
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chapters = twitch.get_video_chapters(video_id)
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if not chapters:
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raise ConsoleError("This video has no chapters")
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if args.chapter == 0:
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chapter = _choose_chapter_interactive(chapters)
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else:
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try:
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chapter = chapters[args.chapter - 1]
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except IndexError:
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raise ConsoleError(
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f"Chapter {args.chapter} does not exist. This video has {len(chapters)} chapters."
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)
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click.echo(f'Chapter selected: {blue(chapter["description"])}\n')
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start = chapter["positionMilliseconds"] // 1000
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duration = chapter["durationMilliseconds"] // 1000
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return start, start + duration
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return None, None
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def _choose_chapter_interactive(chapters: List[Chapter]):
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click.echo("\nChapters:")
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for index, chapter in enumerate(chapters):
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duration = utils.format_time(chapter["durationMilliseconds"] // 1000)
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click.echo(f'{index + 1}) {bold(chapter["description"])} ({duration})')
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index = utils.read_int("Select a chapter", 1, len(chapters))
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chapter = chapters[index - 1]
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return chapter
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