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Read aloud: Fix only first 32000 characters per chapter being read. Fixes #2086571 [Viewer TTS Skips Ahead](https://bugs.launchpad.net/calibre/+bug/2086571)

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Kovid Goyal 2024-11-05 08:04:52 +05:30
parent ebf8e8d72b
commit 0b2fe9d569
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1 changed files with 11 additions and 3 deletions
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12
src/calibre/gui2/tts/manager.py
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@ -15,6 +15,9 @@ if TYPE_CHECKING:
from calibre.gui2.tts.types import TTSBackend from calibre.gui2.tts.types import TTSBackend
MAX_UTTERANCE_LENGTH = 32 * 1024
class Utterance(NamedTuple): class Utterance(NamedTuple):
text: str text: str
index_in_positions: int index_in_positions: int
@ -37,7 +40,7 @@ class Tracker:
self.last_pos = 0 self.last_pos = 0
self.queue: deque[Utterance] = deque() self.queue: deque[Utterance] = deque()
def parse_marked_text(self, marked_text, limit = 32 * 1024): def parse_marked_text(self, marked_text, limit = MAX_UTTERANCE_LENGTH):
self.clear() self.clear()
text = [] text = []
text_len = chunk_len = index_in_positions = offset_in_text = 0 text_len = chunk_len = index_in_positions = offset_in_text = 0
@ -63,9 +66,11 @@ class Tracker:
self.marked_text = marked_text self.marked_text = marked_text
return self.current_text() return self.current_text()
def pop_first(self): def pop_first(self) -> bool:
if self.queue: if self.queue:
self.queue.popleft() self.queue.popleft()
return True
return False
def current_text(self): def current_text(self):
if self.queue: if self.queue:
@ -244,6 +249,9 @@ class TTSManager(QObject):
elif state is QTextToSpeech.State.Ready: elif state is QTextToSpeech.State.Ready:
if prev_state in (QTextToSpeech.State.Paused, QTextToSpeech.State.Speaking): if prev_state in (QTextToSpeech.State.Paused, QTextToSpeech.State.Speaking):
if not self.speaking_simple_text: if not self.speaking_simple_text:
if self.tracker.pop_first() and (text := self.tracker.current_text()):
self.tts.say(text)
else:
self.emit_state_event('end') self.emit_state_event('end')
elif state is QTextToSpeech.State.Error: elif state is QTextToSpeech.State.Error:
self.emit_state_event('cancel') self.emit_state_event('cancel')