torchcodec is not installed correctly

[besendorf]

After whisper is loaded I get this error about torchcodec.

[UltraSinger] Loading whisper with model large-v2 and cpu as worker
C:\Users\User\Code\UltraSinger\.venv\Lib\site-packages\pyannote\audio\core\io.py:47: UserWarning:
torchcodec is not installed correctly so built-in audio decoding will fail. Solutions are:
* use audio preloaded in-memory as a {'waveform': (channel, time) torch.Tensor, 'sample_rate': int} dictionary;
* fix torchcodec installation. Error message was:

Could not load libtorchcodec. Likely causes:
          1. FFmpeg is not properly installed in your environment. We support
             versions 4, 5, 6, 7, and 8, and we attempt to load libtorchcodec
             for each of those versions. Errors for versions not installed on
             your system are expected; only the error for your installed FFmpeg
             version is relevant. On Windows, ensure you've installed the
             "full-shared" version which ships DLLs.
          2. The PyTorch version (2.8.0+cpu) is not compatible with
             this version of TorchCodec. Refer to the version compatibility
             table:
             https://github.com/pytorch/torchcodec?tab=readme-ov-file#installing-torchcodec.
          3. Another runtime dependency; see exceptions below.

        The following exceptions were raised as we tried to load libtorchcodec:

[start of libtorchcodec loading traceback]
FFmpeg version 8:
Traceback (most recent call last):
  File "C:\Users\User\Code\UltraSinger\.venv\Lib\site-packages\torchcodec\_core\ops.py", line 57, in load_torchcodec_shared_libraries
    torch.ops.load_library(core_library_path)
    ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
  File "C:\Users\User\Code\UltraSinger\.venv\Lib\site-packages\torch\_ops.py", line 1478, in load_library
    ctypes.CDLL(path)
    ~~~~~~~~~~~^^^^^^
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.13_3.13.3312.0_x64__qbz5n2kfra8p0\Lib\ctypes\__init__.py", line 361, in __init__
    self._handle = self._load_library(name, mode, handle, winmode)
                   ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.13_3.13.3312.0_x64__qbz5n2kfra8p0\Lib\ctypes\__init__.py", line 379, in _load_library
    return _LoadLibrary(self._name, winmode)
FileNotFoundError: Could not find module 'C:\Users\User\Code\UltraSinger\.venv\Lib\site-packages\torchcodec\libtorchcodec_core8.dll' (or one of its dependencies). Try using the full path with constructor syntax.

FFmpeg version 7:
Traceback (most recent call last):
  File "C:\Users\User\Code\UltraSinger\.venv\Lib\site-packages\torchcodec\_core\ops.py", line 57, in load_torchcodec_shared_libraries
    torch.ops.load_library(core_library_path)
    ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
  File "C:\Users\User\Code\UltraSinger\.venv\Lib\site-packages\torch\_ops.py", line 1478, in load_library
    ctypes.CDLL(path)
    ~~~~~~~~~~~^^^^^^
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.13_3.13.3312.0_x64__qbz5n2kfra8p0\Lib\ctypes\__init__.py", line 361, in __init__
    self._handle = self._load_library(name, mode, handle, winmode)
                   ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.13_3.13.3312.0_x64__qbz5n2kfra8p0\Lib\ctypes\__init__.py", line 379, in _load_library
    return _LoadLibrary(self._name, winmode)
FileNotFoundError: Could not find module 'C:\Users\User\Code\UltraSinger\.venv\Lib\site-packages\torchcodec\libtorchcodec_core7.dll' (or one of its dependencies). Try using the full path with constructor syntax.

FFmpeg version 6:
Traceback (most recent call last):
  File "C:\Users\User\Code\UltraSinger\.venv\Lib\site-packages\torchcodec\_core\ops.py", line 57, in load_torchcodec_shared_libraries
    torch.ops.load_library(core_library_path)
    ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
  File "C:\Users\User\Code\UltraSinger\.venv\Lib\site-packages\torch\_ops.py", line 1478, in load_library
    ctypes.CDLL(path)
    ~~~~~~~~~~~^^^^^^
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.13_3.13.3312.0_x64__qbz5n2kfra8p0\Lib\ctypes\__init__.py", line 361, in __init__
    self._handle = self._load_library(name, mode, handle, winmode)
                   ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.13_3.13.3312.0_x64__qbz5n2kfra8p0\Lib\ctypes\__init__.py", line 379, in _load_library
    return _LoadLibrary(self._name, winmode)
FileNotFoundError: Could not find module 'C:\Users\User\Code\UltraSinger\.venv\Lib\site-packages\torchcodec\libtorchcodec_core6.dll' (or one of its dependencies). Try using the full path with constructor syntax.

FFmpeg version 5:
Traceback (most recent call last):
  File "C:\Users\User\Code\UltraSinger\.venv\Lib\site-packages\torchcodec\_core\ops.py", line 57, in load_torchcodec_shared_libraries
    torch.ops.load_library(core_library_path)
    ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
  File "C:\Users\User\Code\UltraSinger\.venv\Lib\site-packages\torch\_ops.py", line 1478, in load_library
    ctypes.CDLL(path)
    ~~~~~~~~~~~^^^^^^
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.13_3.13.3312.0_x64__qbz5n2kfra8p0\Lib\ctypes\__init__.py", line 361, in __init__
    self._handle = self._load_library(name, mode, handle, winmode)
                   ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.13_3.13.3312.0_x64__qbz5n2kfra8p0\Lib\ctypes\__init__.py", line 379, in _load_library
    return _LoadLibrary(self._name, winmode)
FileNotFoundError: Could not find module 'C:\Users\User\Code\UltraSinger\.venv\Lib\site-packages\torchcodec\libtorchcodec_core5.dll' (or one of its dependencies). Try using the full path with constructor syntax.

FFmpeg version 4:
Traceback (most recent call last):
  File "C:\Users\User\Code\UltraSinger\.venv\Lib\site-packages\torchcodec\_core\ops.py", line 57, in load_torchcodec_shared_libraries
    torch.ops.load_library(core_library_path)
    ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
  File "C:\Users\User\Code\UltraSinger\.venv\Lib\site-packages\torch\_ops.py", line 1478, in load_library
    ctypes.CDLL(path)
    ~~~~~~~~~~~^^^^^^
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.13_3.13.3312.0_x64__qbz5n2kfra8p0\Lib\ctypes\__init__.py", line 361, in __init__
    self._handle = self._load_library(name, mode, handle, winmode)
                   ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.13_3.13.3312.0_x64__qbz5n2kfra8p0\Lib\ctypes\__init__.py", line 379, in _load_library
    return _LoadLibrary(self._name, winmode)
FileNotFoundError: Could not find module 'C:\Users\User\Code\UltraSinger\.venv\Lib\site-packages\torchcodec\libtorchcodec_core4.dll' (or one of its dependencies). Try using the full path with constructor syntax.
[end of libtorchcodec loading traceback].
  warnings.warn(
Xet Storage is enabled for this repo, but the 'hf_xet' package is not installed. Falling back to regular HTTP download. For better performance, install the package with: `pip install huggingface_hub[hf_xet]` or `pip install hf_xet`
config.json: 2.80kB [00:00, 22.4MB/s]
C:\Users\User\Code\UltraSinger\.venv\Lib\site-packages\huggingface_hub\file_download.py:143: UserWarning: `huggingface_hub` cache-system uses symlinks by default to efficiently store duplicated files but your machine does not support them in C:\Users\User\.cache\huggingface\hub\models--Systran--faster-whisper-large-v2. Caching files will still work but in a degraded version that might require more space on your disk. This warning can be disabled by setting the `HF_HUB_DISABLE_SYMLINKS_WARNING` environment variable. For more details, see https://huggingface.co/docs/huggingface_hub/how-to-cache#limitations.
To support symlinks on Windows, you either need to activate Developer Mode or to run Python as an administrator. In order to activate developer mode, see this article: https://docs.microsoft.com/en-us/windows/apps/get-started/enable-your-device-for-development
  warnings.warn(message)

[magicus]

I get the same messages. However, I am not sure what the problem is, since US continue to run afterwards, seemingly without any errors or problems.

[rakuri255]

please post your OS and GPU

[rakuri255]

Seems that this issue started with an higher Whisperx version. I tested it on 3.3.1 (version since US 0.0.12) and with the current 3.8.1 there is this issue.

[besendorf]

Windows 11 and an AMD GPU so CPU mode

[EvilCartyen]

I have the same issue on Linux and CPU mode. Also, the whisper model language is not picked up and it defaults to English which makes for some.... Interesting transcriptions. Could be related to this, could be a separate bug.

[Syal5]

I managed to solve this problem once in ubuntu 24.04 with AMD building torchcodec from source. However I must have changed something in my build, cause I was unable to replicate the solution in my current installation. I switched AMD ROCm drivers many times, so it may be version related.

Anyway, there was no perceptible improvement besides the disappearance of the warning.

[rakuri255]

Maybe downgrading whisper is an solution

[magicus]

So, on macOS I (unsurprisingly) get a somewhat different error message. The gist of it seems to be the same, though. I checked that /Users/ihse/UltraStar/UltraSinger/.venv/lib/python3.12/site-packages/torchcodec/libtorchcodec_core8.dylib and /Users/ihse/UltraStar/UltraSinger/.venv/lib/python3.12/site-packages/torch/lib/libc10.dylib exists.

But there seems to be some name mangling issues:

(ultrasinger) ihse@saturnus:/UltraStar/UltraSinger$ nm -l /Users/ihse/UltraStar/UltraSinger/.venv/lib/python3.12/site-packages/torchcodec/libtorchcodec_core8.dylib | grep MessageLogger
U __ZN3c1013MessageLogger6streamEv
U __ZN3c1013MessageLoggerC1EPKciib
U __ZN3c1013MessageLoggerD1Ev
(ultrasinger) ihse@saturnus:/UltraStar/UltraSinger$ nm -l /Users/ihse/UltraStar/UltraS
inger/.venv/lib/python3.12/site-packages/torch/lib/libc10.dylib | grep MessageLogger
000000000005cafc T __ZN3c1013MessageLoggerC1EPKcii
000000000005e348 T __ZN3c1013MessageLoggerC2EPKcii
000000000005cb00 T __ZN3c1013MessageLoggerD1Ev
000000000005e810 T __ZN3c1013MessageLoggerD2Ev

/Users/ihse/UltraStar/UltraSinger/.venv/lib/python3.12/site-packages/pyannote/audio/core/io.py:47: UserWarning: 
torchcodec is not installed correctly so built-in audio decoding will fail. Solutions are:
* use audio preloaded in-memory as a {'waveform': (channel, time) torch.Tensor, 'sample_rate': int} dictionary;
* fix torchcodec installation. Error message was:

Could not load libtorchcodec. Likely causes:
          1. FFmpeg is not properly installed in your environment. We support
             versions 4, 5, 6, 7, and 8, and we attempt to load libtorchcodec
             for each of those versions. Errors for versions not installed on
             your system are expected; only the error for your installed FFmpeg
             version is relevant. On Windows, ensure you've installed the
             "full-shared" version which ships DLLs.
          2. The PyTorch version (2.8.0) is not compatible with
             this version of TorchCodec. Refer to the version compatibility
             table:
             https://github.com/pytorch/torchcodec?tab=readme-ov-file#installing-torchcodec.
          3. Another runtime dependency; see exceptions below.

        The following exceptions were raised as we tried to load libtorchcodec:
        
[start of libtorchcodec loading traceback]
FFmpeg version 8:
Traceback (most recent call last):
  File "/Users/ihse/UltraStar/UltraSinger/.venv/lib/python3.12/site-packages/torchcodec/_core/ops.py", line 57, in load_torchcodec_shared_libraries
    torch.ops.load_library(core_library_path)
  File "/Users/ihse/UltraStar/UltraSinger/.venv/lib/python3.12/site-packages/torch/_ops.py", line 1478, in load_library
    ctypes.CDLL(path)
  File "/opt/homebrew/Cellar/python@3.12/3.12.12_2/Frameworks/Python.framework/Versions/3.12/lib/python3.12/ctypes/__init__.py", line 379, in __init__
    self._handle = _dlopen(self._name, mode)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^
OSError: dlopen(/Users/ihse/UltraStar/UltraSinger/.venv/lib/python3.12/site-packages/torchcodec/libtorchcodec_core8.dylib, 0x0006): Symbol not found: __ZN3c1013MessageLogger6streamEv
  Referenced from: <91E356C3-4DAF-32F5-839F-5612DBF8B379> /Users/ihse/UltraStar/UltraSinger/.venv/lib/python3.12/site-packages/torchcodec/libtorchcodec_core8.dylib
  Expected in:     <D1057909-9D16-345A-8B8C-73FA6C3DB62C> /Users/ihse/UltraStar/UltraSinger/.venv/lib/python3.12/site-packages/torch/lib/libc10.dylib

FFmpeg version 7:
Traceback (most recent call last):
  File "/Users/ihse/UltraStar/UltraSinger/.venv/lib/python3.12/site-packages/torchcodec/_core/ops.py", line 57, in load_torchcodec_shared_libraries
    torch.ops.load_library(core_library_path)
  File "/Users/ihse/UltraStar/UltraSinger/.venv/lib/python3.12/site-packages/torch/_ops.py", line 1478, in load_library
    ctypes.CDLL(path)
  File "/opt/homebrew/Cellar/python@3.12/3.12.12_2/Frameworks/Python.framework/Versions/3.12/lib/python3.12/ctypes/__init__.py", line 379, in __init__
    self._handle = _dlopen(self._name, mode)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^
OSError: dlopen(/Users/ihse/UltraStar/UltraSinger/.venv/lib/python3.12/site-packages/torchcodec/libtorchcodec_core7.dylib, 0x0006): Library not loaded: @rpath/libavutil.59.dylib
  Referenced from: <C13D41A6-B6F0-3B51-BE0E-ACC2AAC8ADA6> /Users/ihse/UltraStar/UltraSinger/.venv/lib/python3.12/site-packages/torchcodec/libtorchcodec_core7.dylib
  Reason: tried: '/opt/homebrew/opt/ffmpeg/lib/libavutil.59.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/homebrew/opt/ffmpeg/lib/libavutil.59.dylib' (no such file), '/opt/homebrew/opt/ffmpeg/lib/libavutil.59.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/homebrew/opt/ffmpeg/lib/libavutil.59.dylib' (no such file), '/opt/homebrew/lib/libavutil.59.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/homebrew/lib/libavutil.59.dylib' (no such file), '/opt/homebrew/lib/libavutil.59.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/homebrew/lib/libavutil.59.dylib' (no such file)

FFmpeg version 6:
Traceback (most recent call last):
  File "/Users/ihse/UltraStar/UltraSinger/.venv/lib/python3.12/site-packages/torchcodec/_core/ops.py", line 57, in load_torchcodec_shared_libraries
    torch.ops.load_library(core_library_path)
  File "/Users/ihse/UltraStar/UltraSinger/.venv/lib/python3.12/site-packages/torch/_ops.py", line 1478, in load_library
    ctypes.CDLL(path)
  File "/opt/homebrew/Cellar/python@3.12/3.12.12_2/Frameworks/Python.framework/Versions/3.12/lib/python3.12/ctypes/__init__.py", line 379, in __init__
    self._handle = _dlopen(self._name, mode)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^
OSError: dlopen(/Users/ihse/UltraStar/UltraSinger/.venv/lib/python3.12/site-packages/torchcodec/libtorchcodec_core6.dylib, 0x0006): Library not loaded: @rpath/libavutil.58.dylib
  Referenced from: <1519BB84-7D87-3DE1-A67C-353D71C5CAEE> /Users/ihse/UltraStar/UltraSinger/.venv/lib/python3.12/site-packages/torchcodec/libtorchcodec_core6.dylib
  Reason: tried: '/opt/homebrew/opt/ffmpeg/lib/libavutil.58.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/homebrew/opt/ffmpeg/lib/libavutil.58.dylib' (no such file), '/opt/homebrew/opt/ffmpeg/lib/libavutil.58.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/homebrew/opt/ffmpeg/lib/libavutil.58.dylib' (no such file), '/opt/homebrew/lib/libavutil.58.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/homebrew/lib/libavutil.58.dylib' (no such file), '/opt/homebrew/lib/libavutil.58.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/homebrew/lib/libavutil.58.dylib' (no such file)

FFmpeg version 5:
Traceback (most recent call last):
  File "/Users/ihse/UltraStar/UltraSinger/.venv/lib/python3.12/site-packages/torchcodec/_core/ops.py", line 57, in load_torchcodec_shared_libraries
    torch.ops.load_library(core_library_path)
  File "/Users/ihse/UltraStar/UltraSinger/.venv/lib/python3.12/site-packages/torch/_ops.py", line 1478, in load_library
    ctypes.CDLL(path)
  File "/opt/homebrew/Cellar/python@3.12/3.12.12_2/Frameworks/Python.framework/Versions/3.12/lib/python3.12/ctypes/__init__.py", line 379, in __init__
    self._handle = _dlopen(self._name, mode)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^
OSError: dlopen(/Users/ihse/UltraStar/UltraSinger/.venv/lib/python3.12/site-packages/torchcodec/libtorchcodec_core5.dylib, 0x0006): Library not loaded: @rpath/libavutil.57.dylib
  Referenced from: <7F59D31F-A6B3-3154-84B8-DD8B6A591A97> /Users/ihse/UltraStar/UltraSinger/.venv/lib/python3.12/site-packages/torchcodec/libtorchcodec_core5.dylib
  Reason: tried: '/opt/homebrew/opt/ffmpeg/lib/libavutil.57.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/homebrew/opt/ffmpeg/lib/libavutil.57.dylib' (no such file), '/opt/homebrew/opt/ffmpeg/lib/libavutil.57.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/homebrew/opt/ffmpeg/lib/libavutil.57.dylib' (no such file), '/opt/homebrew/lib/libavutil.57.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/homebrew/lib/libavutil.57.dylib' (no such file), '/opt/homebrew/lib/libavutil.57.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/homebrew/lib/libavutil.57.dylib' (no such file)

FFmpeg version 4:
Traceback (most recent call last):
  File "/Users/ihse/UltraStar/UltraSinger/.venv/lib/python3.12/site-packages/torchcodec/_core/ops.py", line 57, in load_torchcodec_shared_libraries
    torch.ops.load_library(core_library_path)
  File "/Users/ihse/UltraStar/UltraSinger/.venv/lib/python3.12/site-packages/torch/_ops.py", line 1478, in load_library
    ctypes.CDLL(path)
  File "/opt/homebrew/Cellar/python@3.12/3.12.12_2/Frameworks/Python.framework/Versions/3.12/lib/python3.12/ctypes/__init__.py", line 379, in __init__
    self._handle = _dlopen(self._name, mode)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^
OSError: dlopen(/Users/ihse/UltraStar/UltraSinger/.venv/lib/python3.12/site-packages/torchcodec/libtorchcodec_core4.dylib, 0x0006): Library not loaded: @rpath/libavutil.56.dylib
  Referenced from: <0EC9290A-FAF4-3FCA-A1DF-A0C5752BF4AD> /Users/ihse/UltraStar/UltraSinger/.venv/lib/python3.12/site-packages/torchcodec/libtorchcodec_core4.dylib
  Reason: tried: '/opt/homebrew/opt/ffmpeg/lib/libavutil.56.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/homebrew/opt/ffmpeg/lib/libavutil.56.dylib' (no such file), '/opt/homebrew/opt/ffmpeg/lib/libavutil.56.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/homebrew/opt/ffmpeg/lib/libavutil.56.dylib' (no such file), '/opt/homebrew/lib/libavutil.56.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/homebrew/lib/libavutil.56.dylib' (no such file), '/opt/homebrew/lib/libavutil.56.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/homebrew/lib/libavutil.56.dylib' (no such file)
[end of libtorchcodec loading traceback].