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57 lines
1.8 KiB
57 lines
1.8 KiB
from datetime import datetime
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import os
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import contextlib
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import tempfile
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import ffmpeg
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import subprocess
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def convert_mime_type_to_format(mime_type: str) -> str:
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if mime_type == "audio/x-wav" or mime_type == "audio/wav":
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return "wav"
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if mime_type == "audio/webm":
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return "webm"
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if mime_type == "audio/raw":
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return "dat"
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return mime_type
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@contextlib.contextmanager
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def export_audio_to_wav_ffmpeg(audio: bytearray, mime_type: str) -> str:
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temp_dir = tempfile.gettempdir()
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# Create a temporary file with the appropriate extension
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input_ext = convert_mime_type_to_format(mime_type)
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input_path = os.path.join(temp_dir, f"input_{datetime.now().strftime('%Y%m%d%H%M%S%f')}.{input_ext}")
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with open(input_path, 'wb') as f:
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f.write(audio)
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# Check if the input file exists
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assert os.path.exists(input_path), f"Input file does not exist: {input_path}"
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# Export to wav
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output_path = os.path.join(temp_dir, f"output_{datetime.now().strftime('%Y%m%d%H%M%S%f')}.wav")
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print(mime_type, input_path, output_path)
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if mime_type == "audio/raw":
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ffmpeg.input(
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input_path,
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f='s16le',
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ar='16000',
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ac=1,
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).output(output_path, loglevel='panic').run()
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else:
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ffmpeg.input(input_path).output(output_path, acodec='pcm_s16le', ac=1, ar='16k', loglevel='panic').run()
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try:
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yield output_path
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finally:
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os.remove(input_path)
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def run_command(command):
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result = subprocess.run(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE, text=True)
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return result.stdout, result.stderr
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def bytes_to_wav(audio_bytes: bytearray, mime_type):
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with export_audio_to_wav_ffmpeg(audio_bytes, mime_type) as wav_file_path:
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return wav_file_path
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