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add a helper for caching generated files

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This commit is contained in:
Damien Elmes 2020-01-21 20:35:23 +10:00
parent b00a9010be
commit 37d2a4d43c
1 changed files with 10 additions and 1 deletions
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11
qt/aqt/tts.py
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@ -33,7 +33,7 @@ from dataclasses import dataclass
from typing import List, Optional, Any, cast
from anki.sound import AVTag, TTSTag
from anki.utils import tmpdir, isWin
from anki.utils import tmpdir, isWin, checksum
from aqt.sound import OnDoneCallback, PlayerInterrupted, SimpleProcessPlayer
@ -82,6 +82,15 @@ class TTSPlayer:
return None
def temp_file_for_tag_and_voice(self, tag: AVTag, voice: TTSVoice) -> str:
"""Return a hashed filename, to allow for caching generated files.
No file extension is included."""
assert isinstance(tag, TTSTag)
buf = f"{voice.name}-{voice.lang}-{tag.field_text}"
return os.path.join(tmpdir(),
f"tts-{checksum(buf)}")
class TTSProcessPlayer(SimpleProcessPlayer, TTSPlayer):
# mypy gets confused if rank_for_tag is defined in TTSPlayer