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auto-caption/caption-engine/audio2text/gummy.py
himeditator f2aa075e65 refactor(caption-engine): 重构字幕引擎代码结构
- 重构 GummyTranslator 类,增加启动和停止方法
- 优化 AudioStream 类,添加读取音频数据方法
- 更新 main-gummy.py,使用新的 GummyTranslator 和 AudioStream 接口
- 更新文档和 TODO 列表
2025-07-07 22:54:30 +08:00

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from dashscope.audio.asr import (
TranslationRecognizerCallback,
TranscriptionResult,
TranslationResult,
TranslationRecognizerRealtime
)
from datetime import datetime
import json
import sys
class Callback(TranslationRecognizerCallback):
"""
语音大模型流式传输回调对象
"""
def __init__(self):
super().__init__()
self.usage = 0
self.cur_id = -1
self.time_str = ''
def on_open(self) -> None:
# print("on_open")
pass
def on_close(self) -> None:
# print("on_close")
pass
def on_event(
self,
request_id,
transcription_result: TranscriptionResult,
translation_result: TranslationResult,
usage
) -> None:
caption = {}
if transcription_result is not None:
caption['index'] = transcription_result.sentence_id
caption['text'] = transcription_result.text
if caption['index'] != self.cur_id:
self.cur_id = caption['index']
cur_time = datetime.now().strftime('%H:%M:%S')
caption['time_s'] = cur_time
self.time_str = cur_time
else:
caption['time_s'] = self.time_str
caption['time_t'] = datetime.now().strftime('%H:%M:%S')
caption['translation'] = ""
if translation_result is not None:
lang = translation_result.get_language_list()[0]
caption['translation'] = translation_result.get_translation(lang).text
if usage:
self.usage += usage['duration']
# print(caption)
self.send_to_node(caption)
def send_to_node(self, data):
"""
将数据发送到 Node.js 进程
"""
try:
json_data = json.dumps(data) + '\n'
sys.stdout.write(json_data)
sys.stdout.flush()
except Exception as e:
print(f"Error sending data to Node.js: {e}", file=sys.stderr)
class GummyTranslator:
"""
使用 Gummy 引擎流式处理的音频数据,并在标准输出中输出与 Auto Caption 软件可读取的 JSON 字符串数据
初始化参数:
rate: 音频采样率
source: 源语言代码字符串zh, en, ja 等)
target: 目标语言代码字符串zh, en, ja 等)
"""
def __init__(self, rate, source, target):
self.translator = TranslationRecognizerRealtime(
model = "gummy-realtime-v1",
format = "pcm",
sample_rate = rate,
transcription_enabled = True,
translation_enabled = (target is not None),
source_language = source,
translation_target_languages = [target],
callback = Callback()
)
def start(self):
"""启动 Gummy 引擎"""
self.translator.start()
def send_audio_frame(self, data):
"""发送音频帧"""
self.translator.send_audio_frame(data)
def stop(self):
"""停止 Gummy 引擎"""
self.translator.stop()