[FFmpeg-user] avsynctest

[Paul B Mahol]

On Tue, Apr 19, 2022 at 11:10 AM Michael Koch <astroelectronic at t-online.de>
wrote:

> Hello,
>
> it's unclear how the new "avsynctest" source is expected to work. The
> most simple command line
>
> ffmpeg -f lavfi -i avsynctest=d=5 out.mov
>
> gives this error message:
>
> [lavfi @ 000002741200efc0] Output pad "video" with type video of the
> filter instance "Parsed_avsynctest_0" of avsynctest not connected to any
> destination
> avsynctest=d=5: Invalid argument
>
> The console output is below.
>

Add [out0], already answered. This is trivial.


>
> Michael
>
>
>
> C:\Users\astro\Desktop>ffmpeg -f lavfi -i avsynctest=d=5 out.mov
> ffmpeg version 2022-04-18-git-d5687236ab-full_build-www.gyan.dev
> Copyright (c) 2000-2022 the FFmpeg developers
>    built with gcc 11.2.0 (Rev10, Built by MSYS2 project)
>    configuration: --enable-gpl --enable-version3 --enable-static
> --disable-w32threads --disable-autodetect --enable-fontconfig
> --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp
> --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib
> --enable-librist --enable-libsrt --enable-libssh --enable-libzmq
> --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2
> --enable-libdav1d --enable-libdavs2 --enable-libuavs3d --enable-libzvbi
> --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264
> --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libaom
> --enable-libopenjpeg --enable-libvpx --enable-mediafoundation
> --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi
> --enable-liblensfun --enable-libvidstab --enable-libvmaf
> --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid
> --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va
> --enable-dxva2 --enable-libmfx --enable-libshaderc --enable-vulkan
> --enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme
> --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb
> --enable-libmp3lame --enable-libshine --enable-libtheora
> --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc
> --enable-libgsm --enable-libopencore-amrnb --enable-libopus
> --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b
> --enable-libflite --enable-libmysofa --enable-librubberband
> --enable-libsoxr --enable-chromaprint
>    libavutil      57. 24.101 / 57. 24.101
>    libavcodec     59. 26.100 / 59. 26.100
>    libavformat    59. 22.100 / 59. 22.100
>    libavdevice    59.  6.100 / 59.  6.100
>    libavfilter     8. 33.100 /  8. 33.100
>    libswscale      6.  6.100 /  6.  6.100
>    libswresample   4.  6.100 /  4.  6.100
>    libpostproc    56.  5.100 / 56.  5.100
> [lavfi @ 000002741200efc0] Output pad "video" with type video of the
> filter instance "Parsed_avsynctest_0" of avsynctest not connected to any
> destination
> avsynctest=d=5: Invalid argument
>
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