Note: for low-latency encoding set ‘-bf 0’ (no B frames, IPPP GOP structure) and ‘ -rc-lookahead 0′ (i.e. The minimum required Nvidia driver for nvenc is 471.41 or newerĮrror initializing output stream 0:0 - Error while opening encoder for output stream #0:0 – maybe incorrect parameters such as bit_rate, rate, width or height Driver does not support the required nvenc API version. If you get the following error, don’t panic, simply your ffmpeg is ahead of your nvidia driver, you need install recent nvidia driver:
Video:5963kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.000000% Stream #0:0 -> #0:0 (rawvideo (native) -> hevc (hevc_nvenc)) Estimating duration from bitrate, this may be inaccurate Run ffmpeg hevc hw-encoding, here ‘-preset 6’ means ultra-fast mode (the encoding speed is above 200 fps for 1080p), for veryslow mode use ‘-preset 1’ (the encoding speed is around 100fps for 1080p)įfmpeg -hide_banner -y -vsync 0 -s 1920×1080 -i test1080p.yuv -c:v hevc_nvenc -preset 6 -b:v 2M output.h265 First of all you need check that ffmpeg supports nvenc (access to nvidia hw encoder), you merely type ‘ffmpeg’ in the command line and check -enable-nvenc is present in the configuration list:įfmpeg version git-b5f1e05 Copyright (c) 2000-2020 the FFmpeg developersĬonfiguration: -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-libsrt -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-libvmaf -enable-libvorbis -enable-libvo-amrwbenc -enable-libmysofa -enable-libspeex -enable-libxvid -enable-libaom -enable-libgsm -disable-w32threads -enable-libmfx -enable-ffnvcodec -enable-cuda-llvm -enable-cuvid -enable-d3d11va -enable-nvenc -enable-nvdec -enable-dxva2 -enable-avisynth -enable-libopenmpt -enable-amf
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