[FFmpeg-devel] NVIDIA CUVID decoding issue.

Timo Rothenpieler timo at rothenpieler.org
Tue Jun 5 11:28:53 EEST 2018

On 04.06.2018 12:27, Nánási Ferenc wrote:
> Hi!
> I'm trying to transcode H.264 Stream to HEVC. Everything just working
> fine when I'm using the in-built CPU decoder, but when I turn on the
> Hardware-accelerated CUVID module, it throws some error with most of my
> streams.
> *
> /root/bin/ffmpeg -hwaccel cuvid  -c:v h264_cuvid -i
> 'udp://' -map 0:0:v -map 0:1:a -c:v hevc_nvenc -f
> mpegts test.ts
> [h264_cuvid @ 0x3d2b800] Video height 14 not within range from 16 to 4096
> Error while opening decoder for input stream #0:0 : Invalid argument

Try nvdec instead, cuvid uses nvidias parsers, and if they go wrong,
there's nothing to be done about that from the ffmpeg side.

> My video height with all of streams is HD or PAL resolution, so probably
> within that range.
> stream #0:0 is the video stream.
> I've tried to add -analyzeduration 10M -probesize 10M flags, the results
> same.
> FFREPORT file: https://1drv.ms/u/s!AlIDARy55xh44F2f_8C1TyKwxA0t
> *It says: *
> data partitioning is not implemented. Update your FFmpeg version to the
> newest one from Git. If the problem still occurs, it means that your
> file has a feature which has not been implemented.
> [h264 @ 0x31df240] If you want to help, upload a sample of this file to
> ftp://upload.ffmpeg.org/incoming/ and contact the ffmpeg-devel mailing
> list. (ffmpeg-devel at ffmpeg.org)
> Sample from input: https://1drv.ms/v/s!AlIDARy55xh44F7_i2Ak_q8bmTTF
> The output file is empty.
> My FFMPEG version is the newest: 4.0
> *
> **FFMPEG compilation parameters:*
> --prefix=/root/ffmpeg_build --pkg-config-flags=--static
> --extra-cflags='-I/root/ffmpeg_build/include -I/usr/local/cuda/include'
> --extra-ldflags='-L/root/ffmpeg_build/lib -L/usr/local/cuda/lib64'
> --extra-libs=-lpthread --bindir=/root/bin --enable-gpl --enable-libass
> --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame
> --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx
> --enable-libx264 --enable-libx265 --enable-nonfree --enable-cuda
> --enable-cuvid --enable-nvenc --enable-libnpp
> CUDA Version: 9.2 (Patch installed)

CUDA version is irrelevant, it's not used.

> NVIDIA Driver: 390.48
> Card: NVIDIA Quadro P2000
> Using Ubuntu 17.10 and I've Centos 7  server with the same parameters.
> If using something like this:
> /root/bin/ffmpeg -i 'udp://' -map 0:0:v -map 0:1:a -c:v
> hevc_nvenc -f mpegts udp:// or file

Don't run stuff as root. Specially not streams from the net.

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