[FFmpeg-user] Decklink quad 2 - video input/output error

[Mustafa Al Ani]

It means that ffmpeg has found the card but Decklink SDK can NOT enable
video input.

You need to configure your decklink inputs and outputs using either
decklink desktop video or decklink SDK.

/Mustafa

On Sat, Sep 1, 2018 at 8:42 AM Remo Rayamajhi <kshatriya.remo at gmail.com>
wrote:

> Hello guys
>
> I have compile ffmeg with the decklink quad 2 card , i have install the
> .deb file and required SDK file . when i run the command it give me error
>
> root at ubuntu:/usr/local/nettv# *ffmpeg -f decklink -i 'DeckLink Quad (7)@8'
> -pix_fmt yuv420p -vf "yadif=0:-1:0" -acodec aac -af "volume=7,atempo=1" -r
> 25 -b:a 128k -ar 48000 -c:v nvenc -gpu 0 -vprofile baseline -threads 0 -b:v
> 1600k -g 60 -f flv
> 'rtmp://admin:admin@192.168.0.44:1935/test/STAR1500.stream
> <http://admin:admin@192.168.0.44:1935/test/STAR1500.stream>'*
> ffmpeg version N-91697-g45499e5 Copyright (c) 2000-2018 the FFmpeg
> developers
>   built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.10) 20160609
>   configuration: --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-gpl
> --enable-libass --enable-libfdk-aac --enable-libfreetype
> --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx
> --enable-libx264 --enable-cuda --enable-cuvid --enable-nvenc
> --extra-cflags=-I/usr/local/cuda-9.2/include
> --extra-ldflags=-L/usr/local/cuda-9.2/lib64 --enable-decklink
> --*extra-cflags=-I/usr/local/include/Linux/include
> --extra-ldflags=-L/usr/local/include/Linux/include* --enable-nonfree
>   libavutil      56. 19.100 / 56. 19.100
>   libavcodec     58. 25.100 / 58. 25.100
>   libavformat    58. 17.103 / 58. 17.103
>   libavdevice    58.  4.101 / 58.  4.101
>   libavfilter     7. 26.100 /  7. 26.100
>   libswscale      5.  2.100 /  5.  2.100
>   libswresample   3.  2.100 /  3.  2.100
>   libpostproc    55.  2.100 / 55.  2.100
> [decklink @ 0x2e29880] The @mode syntax is deprecated and will be removed.
> Please use the -format_code option.
> [decklink @ 0x2e29880] Found Decklink mode 1920 x 1080 with rate 50.00
> [decklink @ 0x2e29880] Cannot enable video input
> DeckLink Quad (7)@8: Input/output error
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