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import base64
def decode_base64_to_audio(
base64_string: str
) -> bytes:
"""
Decode a base64 string to audio bytes and optionally save to file.
Args:
base64_string (str): Base64 encoded string
output_path (Optional[Union[str, Path]]): Path to save the decoded audio file
Returns:
bytes: Decoded audio bytes
Raises:
ValueError: If the base64 string is invalid
IOError: If there's an error writing the file
"""
try:
audio_bytes = base64.b64decode(base64_string)
return audio_bytes
except base64.binascii.Error as e:
raise ValueError(f"Invalid base64 string: {e}")
except IOError as e:
raise IOError(f"Error writing audio file: {e}")
def encode_audio_to_base64(byte_data: bytes) -> str:
try:
base64_encoded = base64.b64encode(byte_data).decode('utf-8')
return base64_encoded
except IOError as e:
raise IOError(f"Error reading audio file: {e}")
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