fix: 优化

This commit is contained in:
Sakura-RanChen
2025-09-02 14:34:26 +08:00
parent c3c2e7c28e
commit b9df6d4ad2
3 changed files with 54 additions and 14 deletions
+50
View File
@@ -230,6 +230,56 @@ def audio_to_data_stream(audio_file_path, is_opus=True, callback: Callable[[Any]
raw_data = audio.raw_data
pcm_to_data_stream(raw_data, is_opus, callback)
def audio_to_data(audio_file_path: str, is_opus: bool = True) -> list[bytes]:
"""
将音频文件转换为Opus/PCM编码的帧列表
Args:
audio_file_path: 音频文件路径
is_opus: 是否进行Opus编码
"""
# 获取文件后缀名
file_type = os.path.splitext(audio_file_path)[1]
if file_type:
file_type = file_type.lstrip(".")
# 读取音频文件,-nostdin 参数:不要从标准输入读取数据,否则FFmpeg会阻塞
audio = AudioSegment.from_file(
audio_file_path, format=file_type, parameters=["-nostdin"]
)
# 转换为单声道/16kHz采样率/16位小端编码(确保与编码器匹配)
audio = audio.set_channels(1).set_frame_rate(16000).set_sample_width(2)
# 获取原始PCM数据(16位小端)
raw_data = audio.raw_data
# 初始化Opus编码器
encoder = opuslib_next.Encoder(16000, 1, opuslib_next.APPLICATION_AUDIO)
# 编码参数
frame_duration = 60 # 60ms per frame
frame_size = int(16000 * frame_duration / 1000) # 960 samples/frame
datas = []
# 按帧处理所有音频数据(包括最后一帧可能补零)
for i in range(0, len(raw_data), frame_size * 2): # 16bit=2bytes/sample
# 获取当前帧的二进制数据
chunk = raw_data[i : i + frame_size * 2]
# 如果最后一帧不足,补零
if len(chunk) < frame_size * 2:
chunk += b"\x00" * (frame_size * 2 - len(chunk))
if is_opus:
# 转换为numpy数组处理
np_frame = np.frombuffer(chunk, dtype=np.int16)
# 编码Opus数据
frame_data = encoder.encode(np_frame.tobytes(), frame_size)
else:
frame_data = chunk if isinstance(chunk, bytes) else bytes(chunk)
datas.append(frame_data)
return datas
def audio_bytes_to_data_stream(audio_bytes, file_type, is_opus, callback: Callable[[Any], Any]) -> None:
"""