Error parsing NAL unit #2.ĭuration: N/A, start: 21829.677256, bitrate: N/A Log: ffmpeg -timeout 10000000 -reconnect 1 -reconnect_at_eof 1 -reconnect_streamed 1 -reconnect_delay_max 2 -hwaccel_device 0 -hwaccel cuvid -vcodec hevc_cuvid -resize 1920x1080 -i ':' -max_muxing_queue_size 1024 -map 0:0 -map 0:2 -acodec libfdk_aac -b:a 96k -c:v h264_nvenc -gpu 0 -preset llhq -vprofile high -rc:v vbr -qmin:v 26 -qmax:v 35 -b:v 4M -maxrate 4M -bufsize 8M -threads 0 -r 25 -g 100 -f mpegts 'udp://127.0.0.1:6472'įfmpeg version N-95090-g646799b Copyright (c) 2000-2019 the FFmpeg developersīuilt with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.4)Ĭonfiguration: -prefix=/root/ffmpeg_build -pkg-config-flags=-static -extra-cflags=-I/root/ffmpeg_build/include -extra-ldflags=-L/root/ffmpeg_build/lib -bindir=/root/bin -enable-cuda-nvcc -enable-cuvid -enable-libnpp -extra-cflags=-I/usr/local/cuda/include/ -extra-ldflags=-L/usr/local/cuda/lib64/ -enable-gpl -enable-libass -enable-libfdk-aac -enable-libx264 -enable-libx265 -enable-pic -extra-libs='-lpthread -lm -lz -ldl' -enable-nvenc -enable-nonfree Is it not possible to convert HEVC back to H264? Provided device doesn't support required NVENC featuresĮrror 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
Now I am wondering is it not possible to fully hw transcode HEVC to H264?Ĭode used: ffmpeg -timeout 10000000 -reconnect 1 -reconnect_at_eof 1 -reconnect_streamed 1 -reconnect_delay_max 2 -hwaccel_device 0 -hwaccel cuvid -vcodec hevc_cuvid -resize 1920x1080 -i ' -max_muxing_queue_size 1024 -map 0:0 -map 0:2 -acodec libfdk_aac -b:a 96k -c:v h264_nvenc -gpu 0 -preset llhq -profile high -rc:v vbr -qmin:v 26 -qmax:v 32 -b:v 4M -maxrate 4M -bufsize 8M -threads 0 -r 25 -g 100 -f mpegts 'udp://127.0.0.1:6472'
HEVC 4K to HEVC 1080p works but when I try hevc to h264 i get "No NVENC capable devices found"
I try to transcode a HEVC 4k broadcast down to 1080p H264.
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