Why my encoder is not found

[parequena]

Hi,

I'm currently working with Windows 11 Terminal (PowerShell 7.5), and my auto-editor doesn't recognize the hevc_nvenc encoder.

Here’s what I’ve tried:

PS C:\Users\Pablo\Videos\Out> ffmpeg -hide_banner -encoders | findstr nvenc
 V....D av1_nvenc            NVIDIA NVENC av1 encoder (codec av1)
 V....D h264_nvenc           NVIDIA NVENC H.264 encoder (codec h264)
 V....D hevc_nvenc           NVIDIA NVENC hevc encoder (codec hevc)
PS C:\Users\Pablo\Videos\Out> auto-editor RDR1.mp4 -c:v hevc_nvenc
Error! Unknown encoder: hevc_nvenc

To install everything, I followed these steps:

winget install ffmpeg
winget install python
pip install auto-editor
# Add python-pip packages path into PATH_ENV var in Windows 11

As far as I understand, FFmpeg can find the encoder I want to use, but auto-editor cannot.

Could you please help me? I'm a bit lost.

Thank you!

[WyattBlue]

All encoders and decoders are from PyAV. Auto-Editor does not use the ffmpeg cli at all.

[parequena]

On that case, I should know wich encoders are supported by PyAV, right?

[WyattBlue]

Try upgrading PyAV pip install -U --pre pyav and see if hevc_nvenc works now

[parequena]

I´ve probably encounter and my problem looks solved, so I´ll explain my steps.
1- Nvidia GeForce seems deprecated now, so I was using a deprecated software.
2- I´ve used Nvidia Cleaning Tool to erase all Nvidia GeForce
3- I´ve installed the new Nvidia drivers.
4- Updated PyAv and Auto-Editor (using pip) just in case.

Good luck!

[georgedorn]

The suggested solution (pip install -U --pre pyav) did not work for me, as the wheel version of pyav does not support hardware acceleration. Instead, forcing pyav to install from source did work: pip install av --no-binary av.

Now that I see I installed av and it worked, while pyav doesn't, and pyav is not the name of the official package and instead one published by this project's creator, I am baffled. But again, installing av from source did get me hevc_nvenc support, so...

Unfortunately, this seems to convince auto-editor to fall back on libx265, which is software-only. I may have to revert to 25.3.1.