720 lines
20 KiB
Python
720 lines
20 KiB
Python
# Copyright: Ankitects Pty Ltd and contributors
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# License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
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import atexit
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import os
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import re
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import subprocess
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import sys
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import threading
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import time
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import wave
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from abc import ABC, abstractmethod
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from concurrent.futures import Future
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from operator import itemgetter
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from typing import Any, Callable, Dict, List, Optional, Tuple
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import aqt
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from anki import hooks
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from anki.cards import Card
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from anki.sound import AV_REF_RE, AVTag, SoundOrVideoTag
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from anki.utils import isLin, isMac, isWin
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from aqt import gui_hooks
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from aqt.mpv import MPV, MPVBase, MPVCommandError
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from aqt.qt import *
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from aqt.taskman import TaskManager
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from aqt.utils import TR, restoreGeom, saveGeom, showWarning, startup_info, tr
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try:
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import pyaudio
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except:
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pyaudio = None
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# AV player protocol
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##########################################################################
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OnDoneCallback = Callable[[], None]
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class Player(ABC):
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@abstractmethod
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def play(self, tag: AVTag, on_done: OnDoneCallback) -> None:
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"""Play a file.
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When reimplementing, make sure to call
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gui_hooks.av_player_did_begin_playing(self, tag)
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on the main thread after playback begins.
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"""
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@abstractmethod
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def rank_for_tag(self, tag: AVTag) -> Optional[int]:
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"""How suited this player is to playing tag.
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AVPlayer will choose the player that returns the highest rank
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for a given tag.
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If None, this player can not play the tag.
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"""
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def stop(self) -> None:
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"""Optional.
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If implemented, the player must not call on_done() when the audio is stopped."""
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def seek_relative(self, secs: int) -> None:
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"Jump forward or back by secs. Optional."
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def toggle_pause(self) -> None:
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"Optional."
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def shutdown(self) -> None:
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"Do any cleanup required at program termination. Optional."
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AUDIO_EXTENSIONS = {
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"3gp",
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"flac",
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"m4a",
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"mp3",
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"oga",
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"ogg",
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"opus",
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"spx",
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"wav",
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}
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def is_audio_file(fname: str) -> bool:
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ext = fname.split(".")[-1].lower()
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return ext in AUDIO_EXTENSIONS
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class SoundOrVideoPlayer(Player): # pylint: disable=abstract-method
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default_rank = 0
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def rank_for_tag(self, tag: AVTag) -> Optional[int]:
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if isinstance(tag, SoundOrVideoTag):
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return self.default_rank
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else:
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return None
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class SoundPlayer(Player): # pylint: disable=abstract-method
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default_rank = 0
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def rank_for_tag(self, tag: AVTag) -> Optional[int]:
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if isinstance(tag, SoundOrVideoTag) and is_audio_file(tag.filename):
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return self.default_rank
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else:
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return None
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class VideoPlayer(Player): # pylint: disable=abstract-method
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default_rank = 0
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def rank_for_tag(self, tag: AVTag) -> Optional[int]:
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if isinstance(tag, SoundOrVideoTag) and not is_audio_file(tag.filename):
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return self.default_rank
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else:
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return None
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# Main playing interface
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##########################################################################
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class AVPlayer:
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players: List[Player] = []
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# when a new batch of audio is played, shoud the currently playing
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# audio be stopped?
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interrupt_current_audio = True
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def __init__(self) -> None:
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self._enqueued: List[AVTag] = []
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self.current_player: Optional[Player] = None
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def play_tags(self, tags: List[AVTag]) -> None:
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"""Clear the existing queue, then start playing provided tags."""
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self.clear_queue_and_maybe_interrupt()
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self._enqueued = tags[:]
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self._play_next_if_idle()
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def stop_and_clear_queue(self) -> None:
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self._enqueued = []
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self._stop_if_playing()
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def clear_queue_and_maybe_interrupt(self) -> None:
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self._enqueued = []
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if self.interrupt_current_audio:
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self._stop_if_playing()
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def play_file(self, filename: str) -> None:
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self.play_tags([SoundOrVideoTag(filename=filename)])
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def insert_file(self, filename: str) -> None:
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self._enqueued.insert(0, SoundOrVideoTag(filename=filename))
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self._play_next_if_idle()
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def toggle_pause(self) -> None:
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if self.current_player:
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self.current_player.toggle_pause()
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def seek_relative(self, secs: int) -> None:
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if self.current_player:
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self.current_player.seek_relative(secs)
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def shutdown(self) -> None:
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self.stop_and_clear_queue()
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for player in self.players:
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player.shutdown()
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def _stop_if_playing(self) -> None:
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if self.current_player:
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self.current_player.stop()
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def _pop_next(self) -> Optional[AVTag]:
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if not self._enqueued:
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return None
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return self._enqueued.pop(0)
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def _on_play_finished(self) -> None:
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gui_hooks.av_player_did_end_playing(self.current_player)
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self.current_player = None
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self._play_next_if_idle()
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def _play_next_if_idle(self) -> None:
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if self.current_player:
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return
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next = self._pop_next()
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if next is not None:
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self._play(next)
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def _play(self, tag: AVTag) -> None:
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best_player = self._best_player_for_tag(tag)
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if best_player:
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self.current_player = best_player
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gui_hooks.av_player_will_play(tag)
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self.current_player.play(tag, self._on_play_finished)
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else:
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print("no players found for", tag)
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def _best_player_for_tag(self, tag: AVTag) -> Optional[Player]:
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ranked = []
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for p in self.players:
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rank = p.rank_for_tag(tag)
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if rank is not None:
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ranked.append((rank, p))
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ranked.sort(key=itemgetter(0))
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if ranked:
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return ranked[-1][1]
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else:
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return None
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av_player = AVPlayer()
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# Packaged commands
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##########################################################################
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# return modified command array that points to bundled command, and return
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# required environment
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def _packagedCmd(cmd: List[str]) -> Tuple[Any, Dict[str, str]]:
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cmd = cmd[:]
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env = os.environ.copy()
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if "LD_LIBRARY_PATH" in env:
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del env["LD_LIBRARY_PATH"]
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if isMac:
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dir = os.path.dirname(os.path.abspath(__file__))
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exeDir = os.path.abspath(dir + "/../../Resources/audio")
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else:
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exeDir = os.path.dirname(os.path.abspath(sys.argv[0]))
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if isWin and not cmd[0].endswith(".exe"):
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cmd[0] += ".exe"
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path = os.path.join(exeDir, cmd[0])
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if not os.path.exists(path):
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return cmd, env
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cmd[0] = path
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return cmd, env
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# Platform hacks
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##########################################################################
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# legacy global for add-ons
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si = startup_info()
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# osx throws interrupted system call errors frequently
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def retryWait(proc: subprocess.Popen) -> int:
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while 1:
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try:
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return proc.wait()
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except OSError:
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continue
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# Simple player implementations
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##########################################################################
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class SimpleProcessPlayer(Player): # pylint: disable=abstract-method
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"A player that invokes a new process for each tag to play."
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args: List[str] = []
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env: Optional[Dict[str, str]] = None
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def __init__(self, taskman: TaskManager) -> None:
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self._taskman = taskman
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self._terminate_flag = False
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self._process: Optional[subprocess.Popen] = None
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def play(self, tag: AVTag, on_done: OnDoneCallback) -> None:
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self._terminate_flag = False
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self._taskman.run_in_background(
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lambda: self._play(tag), lambda res: self._on_done(res, on_done)
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)
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def stop(self) -> None:
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self._terminate_flag = True
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# note: mplayer implementation overrides this
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def _play(self, tag: AVTag) -> None:
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assert isinstance(tag, SoundOrVideoTag)
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self._process = subprocess.Popen(
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self.args + [tag.filename],
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env=self.env,
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stdout=subprocess.DEVNULL,
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stderr=subprocess.DEVNULL,
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)
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self._wait_for_termination(tag)
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def _wait_for_termination(self, tag: AVTag) -> None:
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self._taskman.run_on_main(
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lambda: gui_hooks.av_player_did_begin_playing(self, tag)
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)
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while True:
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# should we abort playing?
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if self._terminate_flag:
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self._process.terminate()
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self._process = None
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return
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# wait for completion
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try:
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self._process.wait(0.1)
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if self._process.returncode != 0:
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print(f"player got return code: {self._process.returncode}")
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self._process = None
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return
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except subprocess.TimeoutExpired:
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# process still running, repeat loop
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pass
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def _on_done(self, ret: Future, cb: OnDoneCallback) -> None:
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try:
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ret.result()
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except FileNotFoundError:
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showWarning(tr(TR.MEDIA_SOUND_AND_VIDEO_ON_CARDS_WILL))
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# must call cb() here, as we don't currently have another way
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# to flag to av_player that we've stopped
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cb()
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class SimpleMpvPlayer(SimpleProcessPlayer, VideoPlayer):
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default_rank = 1
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args, env = _packagedCmd(
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[
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"mpv",
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"--no-terminal",
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"--force-window=no",
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"--ontop",
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"--audio-display=no",
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"--keep-open=no",
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"--input-media-keys=no",
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"--autoload-files=no",
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]
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)
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def __init__(self, taskman: TaskManager, base_folder: str) -> None:
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super().__init__(taskman)
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self.args += ["--config-dir=" + base_folder]
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class SimpleMplayerPlayer(SimpleProcessPlayer, SoundOrVideoPlayer):
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args, env = _packagedCmd(["mplayer", "-really-quiet", "-noautosub"])
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if isWin:
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args += ["-ao", "win32"]
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# MPV
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##########################################################################
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class MpvManager(MPV, SoundOrVideoPlayer):
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if not isLin:
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default_argv = MPVBase.default_argv + [
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"--input-media-keys=no",
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]
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def __init__(self, base_path: str) -> None:
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mpvPath, self.popenEnv = _packagedCmd(["mpv"])
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self.executable = mpvPath[0]
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self._on_done: Optional[OnDoneCallback] = None
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self.default_argv += ["--config-dir=" + base_path]
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super().__init__(window_id=None, debug=False)
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def on_init(self) -> None:
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# if mpv dies and is restarted, tell Anki the
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# current file is done
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if self._on_done:
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self._on_done()
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try:
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self.command("keybind", "q", "stop")
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self.command("keybind", "Q", "stop")
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self.command("keybind", "CLOSE_WIN", "stop")
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self.command("keybind", "ctrl+w", "stop")
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self.command("keybind", "ctrl+c", "stop")
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except MPVCommandError:
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print("mpv too old for key rebinding")
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def play(self, tag: AVTag, on_done: OnDoneCallback) -> None:
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assert isinstance(tag, SoundOrVideoTag)
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self._on_done = on_done
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filename = hooks.media_file_filter(tag.filename)
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path = os.path.join(os.getcwd(), filename)
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self.command("loadfile", path, "append-play")
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gui_hooks.av_player_did_begin_playing(self, tag)
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def stop(self) -> None:
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self.command("stop")
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def toggle_pause(self) -> None:
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self.set_property("pause", not self.get_property("pause"))
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def seek_relative(self, secs: int) -> None:
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self.command("seek", secs, "relative")
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def on_property_idle_active(self, value: bool) -> None:
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if value and self._on_done:
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self._on_done()
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def shutdown(self) -> None:
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self.close()
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# Legacy, not used
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##################################################
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togglePause = toggle_pause
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seekRelative = seek_relative
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def queueFile(self, file: str) -> None:
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return
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def clearQueue(self) -> None:
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return
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# Mplayer in slave mode
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##########################################################################
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class SimpleMplayerSlaveModePlayer(SimpleMplayerPlayer):
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def __init__(self, taskman: TaskManager):
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super().__init__(taskman)
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self.args.append("-slave")
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def _play(self, tag: AVTag) -> None:
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assert isinstance(tag, SoundOrVideoTag)
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filename = hooks.media_file_filter(tag.filename)
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self._process = subprocess.Popen(
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self.args + [filename],
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env=self.env,
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stdin=subprocess.PIPE,
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stdout=subprocess.DEVNULL,
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stderr=subprocess.DEVNULL,
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startupinfo=startup_info(),
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)
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self._wait_for_termination(tag)
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def command(self, *args: Any) -> None:
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"""Send a command over the slave interface.
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The trailing newline is automatically added."""
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str_args = [str(x) for x in args]
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if self._process:
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self._process.stdin.write(" ".join(str_args).encode("utf8") + b"\n")
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self._process.stdin.flush()
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def seek_relative(self, secs: int) -> None:
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self.command("seek", secs, 0)
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def toggle_pause(self) -> None:
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self.command("pause")
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# PyAudio recording
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##########################################################################
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PYAU_CHANNELS = 1
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PYAU_INPUT_INDEX: Optional[int] = None
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processingSrc = "rec.wav"
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processingDst = "rec.mp3"
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recFiles: List[str] = []
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processingChain: List[List[str]] = [
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["lame", processingSrc, processingDst, "--noreplaygain", "--quiet"],
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]
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class _Recorder:
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def postprocess(self, encode=True) -> None:
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self.encode = encode
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for c in processingChain:
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# print c
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if not self.encode and c[0] == "lame":
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continue
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try:
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cmd, env = _packagedCmd(c)
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ret = retryWait(
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subprocess.Popen(cmd, startupinfo=startup_info(), env=env)
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)
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except:
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ret = True
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finally:
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self.cleanup()
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if ret:
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raise Exception(tr(TR.MEDIA_ERROR_RUNNING, val=" ").join(cmd))
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def cleanup(self) -> None:
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if os.path.exists(processingSrc):
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os.unlink(processingSrc)
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class PyAudioThreadedRecorder(threading.Thread):
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def __init__(self, startupDelay: float) -> None:
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threading.Thread.__init__(self)
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self.startupDelay = startupDelay
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self.finish = False
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if isMac and qtminor > 12:
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# trigger permission prompt
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from PyQt5.QtMultimedia import QAudioDeviceInfo
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QAudioDeviceInfo.defaultInputDevice()
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def run(self) -> None:
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chunk = 1024
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p = pyaudio.PyAudio()
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rate = int(p.get_default_input_device_info()["defaultSampleRate"])
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wait = int(rate * self.startupDelay)
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PYAU_FORMAT = pyaudio.paInt16
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stream = p.open(
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format=PYAU_FORMAT,
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channels=PYAU_CHANNELS,
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rate=rate,
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input=True,
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input_device_index=PYAU_INPUT_INDEX,
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frames_per_buffer=chunk,
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)
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stream.read(wait, exception_on_overflow=False)
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data = b""
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while not self.finish:
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data += stream.read(chunk, exception_on_overflow=False)
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stream.close()
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p.terminate()
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wf = wave.open(processingSrc, "wb")
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wf.setnchannels(PYAU_CHANNELS)
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wf.setsampwidth(p.get_sample_size(PYAU_FORMAT))
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wf.setframerate(rate)
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wf.writeframes(data)
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wf.close()
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class PyAudioRecorder(_Recorder):
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# discard first 250ms which may have pops/cracks
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startupDelay = 0.25
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def __init__(self) -> None:
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for t in recFiles + [processingSrc, processingDst]:
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try:
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os.unlink(t)
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except OSError:
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pass
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self.encode = False
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def start(self) -> None:
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self.thread = PyAudioThreadedRecorder(startupDelay=self.startupDelay)
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self.thread.start()
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def stop(self) -> None:
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self.thread.finish = True
|
|
self.thread.join()
|
|
|
|
def file(self) -> str:
|
|
if self.encode:
|
|
tgt = "rec%d.mp3" % time.time()
|
|
os.rename(processingDst, tgt)
|
|
return tgt
|
|
else:
|
|
return processingSrc
|
|
|
|
|
|
Recorder = PyAudioRecorder
|
|
|
|
# Recording dialog
|
|
##########################################################################
|
|
|
|
|
|
def getAudio(parent: QWidget, encode: bool = True) -> Optional[str]:
|
|
"Record and return filename"
|
|
if not pyaudio:
|
|
showWarning("Please install pyaudio.")
|
|
return None
|
|
# record first
|
|
r = Recorder()
|
|
mb = QMessageBox(parent)
|
|
restoreGeom(mb, "audioRecorder")
|
|
mb.setWindowTitle("Anki")
|
|
mb.setIconPixmap(QPixmap(":/icons/media-record.png"))
|
|
but = QPushButton(tr(TR.ACTIONS_SAVE))
|
|
mb.addButton(but, QMessageBox.AcceptRole)
|
|
but.setDefault(True)
|
|
but = QPushButton(tr(TR.ACTIONS_CANCEL))
|
|
mb.addButton(but, QMessageBox.RejectRole)
|
|
mb.setEscapeButton(but)
|
|
t = time.time()
|
|
r.start()
|
|
time.sleep(r.startupDelay)
|
|
QApplication.instance().processEvents() # type: ignore
|
|
while not mb.clickedButton():
|
|
txt = tr(TR.MEDIA_RECORDINGTIME)
|
|
mb.setText(txt % (time.time() - t))
|
|
mb.show()
|
|
QApplication.instance().processEvents() # type: ignore
|
|
if mb.clickedButton() == mb.escapeButton():
|
|
r.stop()
|
|
r.cleanup()
|
|
return None
|
|
saveGeom(mb, "audioRecorder")
|
|
# ensure at least a second captured
|
|
while time.time() - t < 1:
|
|
time.sleep(0.1)
|
|
r.stop()
|
|
# process
|
|
r.postprocess(encode)
|
|
return r.file()
|
|
|
|
|
|
# Legacy audio interface
|
|
##########################################################################
|
|
# these will be removed in the future
|
|
|
|
|
|
def clearAudioQueue() -> None:
|
|
av_player.stop_and_clear_queue()
|
|
|
|
|
|
def play(filename: str) -> None:
|
|
av_player.play_file(filename)
|
|
|
|
|
|
def playFromText(text) -> None:
|
|
print("playFromText() deprecated")
|
|
|
|
|
|
# legacy globals
|
|
_player = play
|
|
_queueEraser = clearAudioQueue
|
|
mpvManager: Optional["MpvManager"] = None
|
|
|
|
# add everything from this module into anki.sound for backwards compat
|
|
_exports = [i for i in locals().items() if not i[0].startswith("__")]
|
|
for (k, v) in _exports:
|
|
sys.modules["anki.sound"].__dict__[k] = v
|
|
|
|
# Tag handling
|
|
##########################################################################
|
|
|
|
|
|
def av_refs_to_play_icons(text: str) -> str:
|
|
"""Add play icons into the HTML.
|
|
|
|
When clicked, the icon will call eg pycmd('play:q:1').
|
|
"""
|
|
|
|
def repl(match: re.Match) -> str:
|
|
return f"""
|
|
<a class="replay-button soundLink" href=# onclick="pycmd('{match.group(1)}'); return false;">
|
|
<svg class="playImage" viewBox="0 0 64 64" version="1.1">
|
|
<circle cx="32" cy="32" r="29" />
|
|
<path d="M56.502,32.301l-37.502,20.101l0.329,-40.804l37.173,20.703Z" />
|
|
</svg>
|
|
</a>"""
|
|
|
|
return AV_REF_RE.sub(repl, text)
|
|
|
|
|
|
def play_clicked_audio(pycmd: str, card: Card) -> None:
|
|
"""eg. if pycmd is 'play:q:0', play the first audio on the question side."""
|
|
play, context, str_idx = pycmd.split(":")
|
|
idx = int(str_idx)
|
|
if context == "q":
|
|
tags = card.question_av_tags()
|
|
else:
|
|
tags = card.answer_av_tags()
|
|
av_player.play_tags([tags[idx]])
|
|
|
|
|
|
# Init defaults
|
|
##########################################################################
|
|
|
|
|
|
def setup_audio(taskman: TaskManager, base_folder: str) -> None:
|
|
# legacy global var
|
|
global mpvManager
|
|
|
|
try:
|
|
mpvManager = MpvManager(base_folder)
|
|
except FileNotFoundError:
|
|
print("mpv not found, reverting to mplayer")
|
|
except aqt.mpv.MPVProcessError:
|
|
print("mpv too old, reverting to mplayer")
|
|
|
|
if mpvManager is not None:
|
|
av_player.players.append(mpvManager)
|
|
|
|
if isWin:
|
|
mpvPlayer = SimpleMpvPlayer(taskman, base_folder)
|
|
av_player.players.append(mpvPlayer)
|
|
else:
|
|
mplayer = SimpleMplayerSlaveModePlayer(taskman)
|
|
av_player.players.append(mplayer)
|
|
|
|
# tts support
|
|
if isMac:
|
|
from aqt.tts import MacTTSPlayer
|
|
|
|
av_player.players.append(MacTTSPlayer(taskman))
|
|
elif isWin:
|
|
from aqt.tts import WindowsTTSPlayer
|
|
|
|
av_player.players.append(WindowsTTSPlayer(taskman))
|
|
|
|
# cleanup at shutdown
|
|
atexit.register(av_player.shutdown)
|