15acaea208
- Parse CLOSED-CAPTIONS entries from HLS manifests and attach CC metadata (language, name, instream_id) to video tracks - Move CC extraction to run after decryption instead of before, fixing extraction failures on encrypted streams - Extract CCs even when other subtitle tracks exist, using manifest CC language info instead of guessing - Try ccextractor on the original file before repacking to preserve container-level CC data (e.g. c608 boxes) that ffmpeg remux strips - Display deduplicated closed captions in --list output and download progress, positioned after subtitles - Add closed_captions field to Video track class
646 lines
27 KiB
Python
646 lines
27 KiB
Python
from __future__ import annotations
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import logging
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import subprocess
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from functools import partial
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from pathlib import Path
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from typing import Callable, Iterator, Optional, Sequence, Union
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from langcodes import Language, closest_supported_match
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from rich.progress import BarColumn, Progress, SpinnerColumn, TextColumn, TimeRemainingColumn
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from rich.table import Table
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from rich.tree import Tree
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from unshackle.core import binaries
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from unshackle.core.config import config
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from unshackle.core.console import console
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from unshackle.core.constants import LANGUAGE_EXACT_DISTANCE, LANGUAGE_MAX_DISTANCE, AnyTrack, TrackT
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from unshackle.core.events import events
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from unshackle.core.tracks.attachment import Attachment
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from unshackle.core.tracks.audio import Audio
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from unshackle.core.tracks.chapters import Chapter, Chapters
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from unshackle.core.tracks.subtitle import Subtitle
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from unshackle.core.tracks.track import Track
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from unshackle.core.tracks.video import Video
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from unshackle.core.utilities import get_debug_logger, is_close_match, sanitize_filename
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from unshackle.core.utils.collections import as_list, flatten
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class Tracks:
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"""
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Video, Audio, Subtitle, Chapter, and Attachment Track Store.
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It provides convenience functions for listing, sorting, and selecting tracks.
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"""
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TRACK_ORDER_MAP = {Video: 0, Audio: 1, Subtitle: 2, Chapter: 3, Attachment: 4}
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def __init__(
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self,
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*args: Union[
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Tracks, Sequence[Union[AnyTrack, Chapter, Chapters, Attachment]], Track, Chapter, Chapters, Attachment
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],
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):
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self.videos: list[Video] = []
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self.audio: list[Audio] = []
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self.subtitles: list[Subtitle] = []
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self.chapters = Chapters()
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self.attachments: list[Attachment] = []
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if args:
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self.add(args)
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def __iter__(self) -> Iterator[AnyTrack]:
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return iter(as_list(self.videos, self.audio, self.subtitles))
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def __len__(self) -> int:
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return len(self.videos) + len(self.audio) + len(self.subtitles)
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def __add__(
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self,
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other: Union[
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Tracks, Sequence[Union[AnyTrack, Chapter, Chapters, Attachment]], Track, Chapter, Chapters, Attachment
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],
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) -> Tracks:
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self.add(other)
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return self
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def __repr__(self) -> str:
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return "{name}({items})".format(
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name=self.__class__.__name__, items=", ".join([f"{k}={repr(v)}" for k, v in self.__dict__.items()])
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)
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def __str__(self) -> str:
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rep = {Video: [], Audio: [], Subtitle: [], Chapter: [], Attachment: []}
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tracks = [*list(self), *self.chapters]
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for track in sorted(tracks, key=lambda t: self.TRACK_ORDER_MAP[type(t)]):
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if not rep[type(track)]:
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count = sum(type(x) is type(track) for x in tracks)
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rep[type(track)].append(
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"{count} {type} Track{plural}{colon}".format(
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count=count,
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type=track.__class__.__name__,
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plural="s" if count != 1 else "",
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colon=":" if count > 0 else "",
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)
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)
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rep[type(track)].append(str(track))
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for type_ in list(rep):
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if not rep[type_]:
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del rep[type_]
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continue
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rep[type_] = "\n".join([rep[type_][0]] + [f"├─ {x}" for x in rep[type_][1:-1]] + [f"└─ {rep[type_][-1]}"])
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rep = "\n".join(list(rep.values()))
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return rep
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def tree(self, add_progress: bool = False) -> tuple[Tree, list[Callable[..., None]]]:
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all_tracks = [*list(self), *self.chapters, *self.attachments]
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progress_callables = []
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tree = Tree("", hide_root=True)
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for track_type in self.TRACK_ORDER_MAP:
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tracks = list(x for x in all_tracks if isinstance(x, track_type))
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if tracks:
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num_tracks = len(tracks)
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track_type_plural = track_type.__name__ + ("s" if track_type != Audio and num_tracks != 1 else "")
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tracks_tree = tree.add(f"[repr.number]{num_tracks}[/] {track_type_plural}")
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for track in tracks:
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if add_progress and track_type not in (Chapter, Attachment):
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progress = Progress(
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SpinnerColumn(finished_text=""),
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BarColumn(),
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"•",
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TimeRemainingColumn(compact=True, elapsed_when_finished=True),
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"•",
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TextColumn("[progress.data.speed]{task.fields[downloaded]}"),
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console=console,
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speed_estimate_period=10,
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)
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task = progress.add_task("", downloaded="-")
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state = {"total": 100.0}
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def update_track_progress(
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task_id: int = task,
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_state: dict[str, float] = state,
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_progress: Progress = progress,
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**kwargs,
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) -> None:
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"""
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Ensure terminal status states render as a fully completed bar.
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Some downloaders can report completed slightly below total
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before emitting the final "Downloaded" state.
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"""
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if "total" in kwargs and kwargs["total"] is not None:
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_state["total"] = kwargs["total"]
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downloaded_state = kwargs.get("downloaded")
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if downloaded_state in {"Downloaded", "Decrypted", "[yellow]SKIPPED"}:
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kwargs["completed"] = _state["total"]
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_progress.update(task_id=task_id, **kwargs)
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progress_callables.append(update_track_progress)
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track_table = Table.grid()
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track_table.add_row(str(track)[6:], style="text2")
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track_table.add_row(progress)
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tracks_tree.add(track_table)
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else:
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tracks_tree.add(str(track)[6:], style="text2")
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# Show Closed Captions right after Subtitles (even if no subtitle tracks exist)
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if track_type is Subtitle:
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seen_cc: set[str] = set()
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unique_cc: list[str] = []
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for video in (x for x in all_tracks if isinstance(x, Video)):
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for cc in getattr(video, "closed_captions", []):
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lang = cc.get("language", "und")
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name = cc.get("name", "")
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instream_id = cc.get("instream_id", "")
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key = f"{lang}|{instream_id}"
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if key in seen_cc:
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continue
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seen_cc.add(key)
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parts = [f"[CC] | {lang}"]
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if name:
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parts.append(name)
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if instream_id:
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parts.append(instream_id)
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unique_cc.append(" | ".join(parts))
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if unique_cc:
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cc_tree = tree.add(
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f"[repr.number]{len(unique_cc)}[/] Closed Caption{'s' if len(unique_cc) != 1 else ''}"
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)
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for cc_str in unique_cc:
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cc_tree.add(cc_str, style="text2")
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return tree, progress_callables
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def exists(self, by_id: Optional[str] = None, by_url: Optional[Union[str, list[str]]] = None) -> bool:
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"""Check if a track already exists by various methods."""
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if by_id: # recommended
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return any(x.id == by_id for x in self)
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if by_url:
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return any(x.url == by_url for x in self)
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return False
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def add(
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self,
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tracks: Union[
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Tracks, Sequence[Union[AnyTrack, Chapter, Chapters, Attachment]], Track, Chapter, Chapters, Attachment
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],
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warn_only: bool = False,
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) -> None:
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"""Add a provided track to its appropriate array and ensuring it's not a duplicate."""
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if isinstance(tracks, Tracks):
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tracks = [*list(tracks), *tracks.chapters, *tracks.attachments]
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duplicates = 0
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for track in flatten(tracks):
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if self.exists(by_id=track.id):
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if not warn_only:
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raise ValueError(
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"One or more of the provided Tracks is a duplicate. "
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"Track IDs must be unique but accurate using static values. The "
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"value should stay the same no matter when you request the same "
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"content. Use a value that has relation to the track content "
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"itself and is static or permanent and not random/RNG data that "
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"wont change each refresh or conflict in edge cases."
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)
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duplicates += 1
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continue
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if isinstance(track, Video):
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self.videos.append(track)
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elif isinstance(track, Audio):
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self.audio.append(track)
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elif isinstance(track, Subtitle):
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self.subtitles.append(track)
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elif isinstance(track, Chapter):
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self.chapters.add(track)
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elif isinstance(track, Attachment):
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self.attachments.append(track)
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else:
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raise ValueError("Track type was not set or is invalid.")
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log = logging.getLogger("Tracks")
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if duplicates:
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log.debug(f" - Found and skipped {duplicates} duplicate tracks...")
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def sort_videos(self, by_language: Optional[Sequence[Union[str, Language]]] = None) -> None:
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"""Sort video tracks by bitrate, and optionally language."""
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if not self.videos:
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return
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# bitrate
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self.videos.sort(key=lambda x: float(x.bitrate or 0.0), reverse=True)
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# language
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for language in reversed(by_language or []):
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if str(language) in ("all", "best"):
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language = next((x.language for x in self.videos if x.is_original_lang), "")
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if not language:
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continue
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self.videos.sort(key=lambda x: str(x.language))
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self.videos.sort(key=lambda x: not is_close_match(language, [x.language]))
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def sort_audio(self, by_language: Optional[Sequence[Union[str, Language]]] = None) -> None:
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"""Sort audio tracks by bitrate, Atmos, descriptive, and optionally language."""
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if not self.audio:
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return
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# bitrate (highest first)
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self.audio.sort(key=lambda x: float(x.bitrate or 0.0), reverse=True)
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# Atmos tracks first (prioritize over higher bitrate non-Atmos)
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self.audio.sort(key=lambda x: not x.atmos)
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# descriptive tracks last
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self.audio.sort(key=lambda x: x.descriptive)
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# language
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for language in reversed(by_language or []):
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if str(language) in ("all", "best"):
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language = next((x.language for x in self.audio if x.is_original_lang), "")
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if not language:
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continue
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self.audio.sort(key=lambda x: not is_close_match(language, [x.language]))
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def sort_subtitles(self, by_language: Optional[Sequence[Union[str, Language]]] = None) -> None:
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"""
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Sort subtitle tracks by various track attributes to a common P2P standard.
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You may optionally provide a sequence of languages to prioritize to the top.
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Section Order:
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- by_language groups prioritized to top, and ascending alphabetically
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- then rest ascending alphabetically after the prioritized groups
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(Each section ascending alphabetically, but separated)
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Language Group Order:
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- Forced
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- Normal
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- Hard of Hearing (SDH/CC)
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(Least to most captions expected in the subtitle)
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"""
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if not self.subtitles:
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return
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# language groups
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self.subtitles.sort(key=lambda x: str(x.language))
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self.subtitles.sort(key=lambda x: x.sdh or x.cc)
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self.subtitles.sort(key=lambda x: x.forced, reverse=True)
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# sections
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for language in reversed(by_language or []):
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if str(language) == "all":
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language = next((x.language for x in self.subtitles if x.is_original_lang), "")
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if not language:
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continue
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self.subtitles.sort(key=lambda x: is_close_match(language, [x.language]), reverse=True)
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def select_video(self, x: Callable[[Video], bool]) -> None:
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self.videos = list(filter(x, self.videos))
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def select_audio(self, x: Callable[[Audio], bool]) -> None:
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self.audio = list(filter(x, self.audio))
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def select_subtitles(self, x: Callable[[Subtitle], bool]) -> None:
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self.subtitles = list(filter(x, self.subtitles))
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def select_hybrid(self, tracks, quality):
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# Prefer HDR10+ over HDR10 as the base layer (preserves dynamic metadata)
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base_ranges = (Video.Range.HDR10P, Video.Range.HDR10)
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base_tracks = []
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for range_type in base_ranges:
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base_tracks = [
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v
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for v in tracks
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if v.range == range_type and (v.height in quality or int(v.width * 9 / 16) in quality)
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]
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if base_tracks:
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break
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base_selected = []
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for res in quality:
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candidates = [v for v in base_tracks if v.height == res or int(v.width * 9 / 16) == res]
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if candidates:
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best = max(candidates, key=lambda v: v.bitrate)
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base_selected.append(best)
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dv_tracks = [v for v in tracks if v.range == Video.Range.DV]
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lowest_dv = min(dv_tracks, key=lambda v: v.height) if dv_tracks else None
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def select(x):
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if x in base_selected:
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return True
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if lowest_dv and x is lowest_dv:
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return True
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return False
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return select
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def by_resolutions(self, resolutions: list[int], per_resolution: int = 0) -> None:
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# Note: Do not merge these list comprehensions. They must be done separately so the results
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# from the 16:9 canvas check is only used if there's no exact height resolution match.
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selected = []
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for resolution in resolutions:
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matches = [ # exact matches
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x for x in self.videos if x.height == resolution
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]
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if not matches:
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matches = [ # 16:9 canvas matches
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x for x in self.videos if int(x.width * (9 / 16)) == resolution
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]
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selected.extend(matches[: per_resolution or None])
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self.videos = selected
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@staticmethod
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def by_language(
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tracks: list[TrackT], languages: list[str], per_language: int = 0, exact_match: bool = False
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) -> list[TrackT]:
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distance = LANGUAGE_EXACT_DISTANCE if exact_match else LANGUAGE_MAX_DISTANCE
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selected = []
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for language in languages:
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selected.extend(
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[x for x in tracks if closest_supported_match(str(x.language), [language], distance)][
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: per_language or None
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]
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)
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return selected
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def mux(
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self,
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title: str,
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delete: bool = True,
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progress: Optional[partial] = None,
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audio_expected: bool = True,
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title_language: Optional[Language] = None,
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skip_subtitles: bool = False,
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) -> tuple[Path, int, list[str]]:
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"""
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Multiplex all the Tracks into a Matroska Container file.
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Parameters:
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title: Set the Matroska Container file title. Usually displayed in players
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instead of the filename if set.
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delete: Delete all track files after multiplexing.
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progress: Update a rich progress bar via `completed=...`. This must be the
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progress object's update() func, pre-set with task id via functools.partial.
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audio_expected: Whether audio is expected in the output. Used to determine
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if embedded audio metadata should be added.
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title_language: The title's intended language. Used to select the best video track
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for audio metadata when multiple video tracks exist.
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skip_subtitles: Skip muxing subtitle tracks into the container.
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"""
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if self.videos and not self.audio and audio_expected:
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video_track = None
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if title_language:
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video_track = next((v for v in self.videos if v.language == title_language), None)
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if not video_track:
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video_track = next((v for v in self.videos if v.is_original_lang), None)
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video_track = video_track or self.videos[0]
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if video_track.language.is_valid():
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lang_code = str(video_track.language)
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lang_name = video_track.language.display_name()
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for video in self.videos:
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video.needs_repack = True
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video.data["audio_language"] = lang_code
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video.data["audio_language_name"] = lang_name
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if not binaries.MKVToolNix:
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raise RuntimeError("MKVToolNix (mkvmerge) is required for muxing but was not found")
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cl = [
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str(binaries.MKVToolNix),
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"--no-date", # remove dates from the output for security
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]
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if config.muxing.get("set_title", True):
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cl.extend(["--title", title])
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for i, vt in enumerate(self.videos):
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if not vt.path or not vt.path.exists():
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raise ValueError("Video Track must be downloaded before muxing...")
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events.emit(events.Types.TRACK_MULTIPLEX, track=vt)
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is_default = False
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if title_language:
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is_default = vt.language == title_language
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if not any(v.language == title_language for v in self.videos):
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is_default = vt.is_original_lang or i == 0
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else:
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is_default = i == 0
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# Prepare base arguments
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video_args = [
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"--language",
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f"0:{vt.language}",
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"--default-track",
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f"0:{is_default}",
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"--original-flag",
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f"0:{vt.is_original_lang}",
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"--compression",
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"0:none", # disable extra compression
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]
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# Add FPS fix if needed (typically for hybrid mode to prevent sync issues)
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if hasattr(vt, "needs_duration_fix") and vt.needs_duration_fix and vt.fps:
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video_args.extend(
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[
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"--default-duration",
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f"0:{vt.fps}fps" if isinstance(vt.fps, str) else f"0:{vt.fps:.3f}fps",
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"--fix-bitstream-timing-information",
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"0:1",
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]
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)
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if hasattr(vt, "range") and vt.range == Video.Range.HLG:
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video_args.extend(
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[
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"--color-transfer-characteristics",
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"0:18", # ARIB STD-B67 (HLG)
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]
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)
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if hasattr(vt, "data") and vt.data.get("audio_language"):
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audio_lang = vt.data["audio_language"]
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audio_name = vt.data.get("audio_language_name", audio_lang)
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video_args.extend(
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[
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"--language",
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f"1:{audio_lang}",
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"--track-name",
|
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f"1:{audio_name}",
|
|
]
|
|
)
|
|
|
|
cl.extend(video_args + ["(", str(vt.path), ")"])
|
|
|
|
for i, at in enumerate(self.audio):
|
|
if not at.path or not at.path.exists():
|
|
raise ValueError("Audio Track must be downloaded before muxing...")
|
|
events.emit(events.Types.TRACK_MULTIPLEX, track=at)
|
|
cl.extend(
|
|
[
|
|
"--track-name",
|
|
f"0:{at.get_track_name() or ''}",
|
|
"--language",
|
|
f"0:{at.language}",
|
|
"--default-track",
|
|
f"0:{at.is_original_lang}",
|
|
"--visual-impaired-flag",
|
|
f"0:{at.descriptive}",
|
|
"--original-flag",
|
|
f"0:{at.is_original_lang}",
|
|
"--compression",
|
|
"0:none", # disable extra compression
|
|
"(",
|
|
str(at.path),
|
|
")",
|
|
]
|
|
)
|
|
|
|
if not skip_subtitles:
|
|
for st in self.subtitles:
|
|
if not st.path or not st.path.exists():
|
|
raise ValueError("Text Track must be downloaded before muxing...")
|
|
events.emit(events.Types.TRACK_MULTIPLEX, track=st)
|
|
default = bool(self.audio and is_close_match(st.language, [self.audio[0].language]) and st.forced)
|
|
cl.extend(
|
|
[
|
|
"--track-name",
|
|
f"0:{st.get_track_name() or ''}",
|
|
"--language",
|
|
f"0:{st.language}",
|
|
"--sub-charset",
|
|
"0:UTF-8",
|
|
"--forced-track",
|
|
f"0:{st.forced}",
|
|
"--default-track",
|
|
f"0:{default}",
|
|
"--hearing-impaired-flag",
|
|
f"0:{st.sdh}",
|
|
"--original-flag",
|
|
f"0:{st.is_original_lang}",
|
|
"--compression",
|
|
"0:none", # disable extra compression (probably zlib)
|
|
"(",
|
|
str(st.path),
|
|
")",
|
|
]
|
|
)
|
|
|
|
if self.chapters:
|
|
chapters_path = config.directories.temp / config.filenames.chapters.format(
|
|
title=sanitize_filename(title), random=self.chapters.id
|
|
)
|
|
self.chapters.dump(chapters_path, fallback_name=config.chapter_fallback_name)
|
|
cl.extend(["--chapter-charset", "UTF-8", "--chapters", str(chapters_path)])
|
|
else:
|
|
chapters_path = None
|
|
|
|
for attachment in self.attachments:
|
|
if not attachment.path or not attachment.path.exists():
|
|
raise ValueError("Attachment File was not found...")
|
|
cl.extend(
|
|
[
|
|
"--attachment-description",
|
|
attachment.description or "",
|
|
"--attachment-mime-type",
|
|
attachment.mime_type,
|
|
"--attachment-name",
|
|
attachment.name,
|
|
"--attach-file",
|
|
str(attachment.path.resolve()),
|
|
]
|
|
)
|
|
|
|
output_path = (
|
|
self.videos[0].path.with_suffix(".muxed.mkv")
|
|
if self.videos
|
|
else self.audio[0].path.with_suffix(".muxed.mka")
|
|
if self.audio
|
|
else self.subtitles[0].path.with_suffix(".muxed.mks")
|
|
if self.subtitles
|
|
else chapters_path.with_suffix(".muxed.mkv")
|
|
if self.chapters
|
|
else None
|
|
)
|
|
if not output_path:
|
|
raise ValueError("No tracks provided, at least one track must be provided.")
|
|
|
|
debug_logger = get_debug_logger()
|
|
if debug_logger:
|
|
debug_logger.log(
|
|
level="DEBUG",
|
|
operation="mux_start",
|
|
message="Starting mkvmerge muxing",
|
|
context={
|
|
"title": title,
|
|
"output_path": str(output_path),
|
|
"video_count": len(self.videos),
|
|
"audio_count": len(self.audio),
|
|
"subtitle_count": len(self.subtitles),
|
|
"attachment_count": len(self.attachments),
|
|
"has_chapters": bool(self.chapters),
|
|
"video_tracks": [
|
|
{"id": v.id, "codec": getattr(v, "codec", None), "language": str(v.language)}
|
|
for v in self.videos
|
|
],
|
|
"audio_tracks": [
|
|
{"id": a.id, "codec": getattr(a, "codec", None), "language": str(a.language)}
|
|
for a in self.audio
|
|
],
|
|
"subtitle_tracks": [
|
|
{"id": s.id, "codec": getattr(s, "codec", None), "language": str(s.language)}
|
|
for s in self.subtitles
|
|
],
|
|
},
|
|
)
|
|
|
|
# let potential failures go to caller, caller should handle
|
|
try:
|
|
errors = []
|
|
p = subprocess.Popen([*cl, "--output", str(output_path), "--gui-mode"], text=True, stdout=subprocess.PIPE)
|
|
for line in iter(p.stdout.readline, ""):
|
|
if line.startswith("#GUI#error") or line.startswith("#GUI#warning"):
|
|
errors.append(line)
|
|
if "progress" in line:
|
|
progress(total=100, completed=int(line.strip()[14:-1]))
|
|
|
|
returncode = p.wait()
|
|
|
|
if debug_logger:
|
|
if returncode != 0 or errors:
|
|
debug_logger.log(
|
|
level="ERROR",
|
|
operation="mux_failed",
|
|
message=f"mkvmerge exited with code {returncode}",
|
|
context={
|
|
"returncode": returncode,
|
|
"output_path": str(output_path),
|
|
"errors": errors,
|
|
},
|
|
)
|
|
else:
|
|
debug_logger.log(
|
|
level="DEBUG",
|
|
operation="mux_complete",
|
|
message="mkvmerge muxing completed successfully",
|
|
context={
|
|
"output_path": str(output_path),
|
|
"output_exists": output_path.exists() if output_path else False,
|
|
},
|
|
)
|
|
|
|
return output_path, returncode, errors
|
|
finally:
|
|
if chapters_path:
|
|
chapters_path.unlink()
|
|
if delete:
|
|
for track in self:
|
|
track.delete()
|
|
for attachment in self.attachments:
|
|
if attachment.path and attachment.path.exists():
|
|
attachment.path.unlink()
|
|
|
|
|
|
__all__ = ("Tracks",)
|