RESOLVED: ffmpeg returns error

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The build error you're encountering with FFmpeg suggests a problem with detecting the NVIDIA CUDA compiler (nvcc).

Ensure CUDA is installed. nvcc --version

Confirm nvcc is in your system's PATH. Add it if necessary. export PATH=/path/to/cuda/bin:$PATH

Pull the latest changes from the FFmpeg Git repository. git pull origin master

Verify all required dependencies (codecs, libraries) are installed. sudo apt-get install libavcodec-dev libavformat-dev ...

Review error logs and post here accordingly! After making these adjustments, attempt the build again!

Advanced package tool!

It is a command-line tool that simplifies the process of installing, updating, and removing software packages on Linux!

apt ^

Ah

Which distro are you on

Debian?

Alrighty!

I have to be careful with which commands I give you.

As some may not work with certain distros!

Try this command string:
export PATH=/path/to/cuda/bin:$PATH && \
git -C /home/felix/.cache/yay/alvr/src/alvr/deps/linux/nv-codec-headers pull origin master && \
sudo apt update && \
sudo apt install libavcodec-dev libavformat-dev libavutil-dev nvidia-cuda-toolkit && \
cd /home/felix/.cache/yay/alvr/src/alvr/deps/linux/ffmpeg && \
PKG_CONFIG_PATH='/home/felix/.cache/yay/alvr/src/alvr/deps/linux/nv-codec-headers/build/lib/pkgconfig' ./configure \
--prefix=/home/felix/.cache/yay/alvr/src/alvr/deps/linux/ffmpeg/alvr_build \
--enable-gpl --enable-version3 --enable-static --disable-programs --disable-doc \
--disable-avdevice --disable-avformat --disable-swresample --disable-swscale --disable-postproc \
--disable-network --disable-everything --enable-encoder=h264_vaapi --enable-encoder=hevc_vaapi \
--enable-hwaccel=h264_vaapi --enable-hwaccel=hevc_vaapi --enable-filter=scale_vaapi --enable-vulkan \
--enable-libdrm --enable-pic --enable-rpath --fatal-warnings --enable-encoder=h264_nvenc \
--enable-encoder=hevc_nvenc --enable-nonfree --enable-cuda-nvcc --enable-libnpp \
--nvccflags="-gencode arch=compute_52,code=sm_52 -O2" \
--extra-cflags="-I/opt/cuda/targets/x86_64-linux/include" \
--extra-ldflags="-L/opt/cuda/targets/x86_64-linux/lib" && \
make && \
sudo make install

This will add CUDA to PATH temporarily. Updates some respositories and dependencies! Compiles ffmpeg and reinstalls it!

Oh fair!

Np!

Make sure you to add the resolved tag to this thread @meager vigil!