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SpectacularAI / sdk-examples

Spectacular AI SDK examples
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SpectacularAI ERROR: `ffmpeg` must be installed. #98

Closed orgicus closed 11 months ago

orgicus commented 11 months ago

Hi,

First off: thanks for sharing these awesome examples: really fun to play with !

I did run into an error running the vio_replay.py example: SpectacularAI ERROR:ffmpegmust be installed.

It seems it can't find the path to ffmpeg.exe ? It is added to the PATH environment variable and I did check python can see it too like so:

python -c "import subprocess;print(subprocess.check_output(['ffmpeg','-version']))"
b'ffmpeg version 4.2.3 Copyright (c) 2000-2020 the FFmpeg developers\r\nbuilt with gcc 9.3.1 (GCC) 20200523\r\nconfiguration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt\r\nlibavutil      56. 31.100 / 56. 31.100\r\nlibavcodec     58. 54.100 / 58. 54.100\r\nlibavformat    58. 29.100 / 58. 29.100\r\nlibavdevice    58.  8.100 / 58.  8.100\r\nlibavfilter     7. 57.100 /  7. 57.100\r\nlibswscale      5.  5.100 /  5.  5.100\r\nlibswresample   3.  5.100 /  3.  5.100\r\nlibpostproc    55.  5.100 / 55.  5.100\r\n'

Is there a separate env variable SpectacularAI uses to ffmpeg or a specific path ? (for example, currently I have ffmpeg installed via ImageMagick, so not a standard path?). Is there a way to tell the SpectacularAI module where to look for ffmpeg ?

oseiskar commented 11 months ago

Thank you for reporting. I think we need to clarify the instructions / error messages around this (also ping @Bercon ). The SDK may actually use other FFMpeg command line tools besides ffmpeg. In particular, ffprobe must work too. The SDK does not try to find them in any custom paths so if typing ffmpeg and ffprobe both work on the command line where you also run the Python replay, then it should work. If not, please let us know.

orgicus commented 11 months ago

That's exactly what it was! 🎉

I swapped environment variables away from imagemagick and to a path that also has ffprobe. For people already using 3D Gaussian Splatting a path like this may be handy: gaussian-splatting\SIBR_viewers\extlibs\ffmpeg\bin\ffprobe.exe

Thank you so much @oseiskar ! 🙌