[FFmpeg-user] NVDEC Issue

Carl Eugen Hoyos ceffmpeg at gmail.com
Mon Jun 18 14:57:28 EEST 2018


2018-06-18 13:57 GMT+02:00, Carl Eugen Hoyos <ceffmpeg at gmail.com>:
> 2018-06-18 13:07 GMT+02:00, Ferenc Nánási <husudosu94 at gmail.com>:
>
>> 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.
>> *
>> **FFMPEG CMDLINE: *
>> /root/bin/ffmpeg -hwaccel cuvid  -c:v h264_cuvid -i
>> 'udp://239.192.26.8:1234' -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
>
> Never provide extracts of the command line, always post the
> complete, uncut console output when asking for help here.
> External resources may disappear.
>
> Errors like this one are unavoidable over a lossy medium like udp.
>
>> 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.
>
> This is not necessarily related, but the values should at least be
> increased to 100M.
>
>> 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)
>
> (This is unrelated, your stream does not use data partitioning.)
>
>> I've already sent a mail to ffmpeg-devel at ffmpeg.org but I got no
>> response from it.
>
> That's because user questions are not welcome on the
> development mailing list.
>
>> Sample from input: https://1drv.ms/v/s!AlIDARy55xh44F7_i2Ak_q8bmTTF
>> The output file is empty.
>>
>> My FFMPEG version is the newest: 4.0
>
> Only current FFmpeg git head is supported here.
>
>> *
>> **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)
>> 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://239.192.26.8:1234' -map 0:0:v -map 0:1:a -c:v
>> hevc_nvenc -f mpegts udp://224.1.1.80:1234/ or file
>>
>> It runs without an issue/warning.
>>
>> I made a sample of a working stream too:
>> Input: https://1drv.ms/v/s!AlIDARy55xh44GA4yH34AIke-8Op
>
> No, this is a file created with FFmpeg, not the input stream.
>
> tcpdump should allow you to save an input stream to be able
> to compare hardware and software behaviour and to provide
> a sample.
> (This is also the highest quality recording you can make.)
>
> Carl Eugen
>


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