lib audio.py error when transcribing .webm file

[huzaifahj]

The input audio file was a ~4 minute long .webm file. Any clue was the 51 is referencing in Invalid data found when processing input: '51'?

This is the complete error:

2024-12-02 12:56:58,646:INFO:faster_whisper_server.model_manager:_decrement_ref:80:Model Systran/faster-whisper-tiny is idle, scheduling offload in 300s
INFO:     172.18.0.1:50842 - "POST /v1/audio/transcriptions HTTP/1.1" 500 Internal Server Error
ERROR:    Exception in ASGI application
Traceback (most recent call last):
  File "/root/faster-whisper-server/.venv/lib/python3.12/site-packages/uvicorn/protocols/http/h11_impl.py", line 406, in run_asgi
    result = await app(  # type: ignore[func-returns-value]
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/faster-whisper-server/.venv/lib/python3.12/site-packages/uvicorn/middleware/proxy_headers.py", line 70, in __call__
    return await self.app(scope, receive, send)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/faster-whisper-server/.venv/lib/python3.12/site-packages/fastapi/applications.py", line 1054, in __call__
    await super().__call__(scope, receive, send)
  File "/root/faster-whisper-server/.venv/lib/python3.12/site-packages/starlette/applications.py", line 113, in __call__
    await self.middleware_stack(scope, receive, send)
  File "/root/faster-whisper-server/.venv/lib/python3.12/site-packages/starlette/middleware/errors.py", line 187, in __call__
    raise exc
  File "/root/faster-whisper-server/.venv/lib/python3.12/site-packages/starlette/middleware/errors.py", line 165, in __call__
    await self.app(scope, receive, _send)
  File "/root/faster-whisper-server/.venv/lib/python3.12/site-packages/starlette/middleware/exceptions.py", line 62, in __call__
    await wrap_app_handling_exceptions(self.app, conn)(scope, receive, send)
  File "/root/faster-whisper-server/.venv/lib/python3.12/site-packages/starlette/_exception_handler.py", line 62, in wrapped_app
    raise exc
  File "/root/faster-whisper-server/.venv/lib/python3.12/site-packages/starlette/_exception_handler.py", line 51, in wrapped_app
    await app(scope, receive, sender)
  File "/root/faster-whisper-server/.venv/lib/python3.12/site-packages/starlette/routing.py", line 715, in __call__
    await self.middleware_stack(scope, receive, send)
  File "/root/faster-whisper-server/.venv/lib/python3.12/site-packages/starlette/routing.py", line 735, in app
    await route.handle(scope, receive, send)
  File "/root/faster-whisper-server/.venv/lib/python3.12/site-packages/starlette/routing.py", line 288, in handle
    await self.app(scope, receive, send)
  File "/root/faster-whisper-server/.venv/lib/python3.12/site-packages/starlette/routing.py", line 76, in app
    await wrap_app_handling_exceptions(app, request)(scope, receive, send)
  File "/root/faster-whisper-server/.venv/lib/python3.12/site-packages/starlette/_exception_handler.py", line 62, in wrapped_app
    raise exc
  File "/root/faster-whisper-server/.venv/lib/python3.12/site-packages/starlette/_exception_handler.py", line 51, in wrapped_app
    await app(scope, receive, sender)
  File "/root/faster-whisper-server/.venv/lib/python3.12/site-packages/starlette/routing.py", line 73, in app
    response = await f(request)
               ^^^^^^^^^^^^^^^^
  File "/root/faster-whisper-server/.venv/lib/python3.12/site-packages/fastapi/routing.py", line 301, in app
    raw_response = await run_endpoint_function(
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/faster-whisper-server/.venv/lib/python3.12/site-packages/fastapi/routing.py", line 214, in run_endpoint_function
    return await run_in_threadpool(dependant.call, **values)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/faster-whisper-server/.venv/lib/python3.12/site-packages/starlette/concurrency.py", line 39, in run_in_threadpool
    return await anyio.to_thread.run_sync(func, *args)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/faster-whisper-server/.venv/lib/python3.12/site-packages/anyio/to_thread.py", line 56, in run_sync
    return await get_async_backend().run_sync_in_worker_thread(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/faster-whisper-server/.venv/lib/python3.12/site-packages/anyio/_backends/_asyncio.py", line 2405, in run_sync_in_worker_thread
    return await future
           ^^^^^^^^^^^^
  File "/root/faster-whisper-server/.venv/lib/python3.12/site-packages/anyio/_backends/_asyncio.py", line 914, in run
    result = context.run(func, *args)
             ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/faster-whisper-server/faster_whisper_server/routers/stt.py", line 220, in transcribe_file
    segments, transcription_info = whisper.transcribe(
                                   ^^^^^^^^^^^^^^^^^^^
  File "/root/faster-whisper-server/.venv/lib/python3.12/site-packages/faster_whisper/transcribe.py", line 319, in transcribe
    audio = decode_audio(audio, sampling_rate=sampling_rate)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/faster-whisper-server/.venv/lib/python3.12/site-packages/faster_whisper/audio.py", line 46, in decode_audio
    with av.open(input_file, mode="r", metadata_errors="ignore") as container:
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "av/container/core.pyx", line 420, in av.container.core.open
  File "av/container/core.pyx", line 266, in av.container.core.Container.__cinit__
  File "av/container/core.pyx", line 286, in av.container.core.Container.err_check
  File "av/error.pyx", line 326, in av.error.err_check
av.error.InvalidDataError: [Errno 1094995529] Invalid data found when processing input: '51'

[MahmoudAshraf97]

does it process correctly using ffmpeg?