How to build ffmpeg with decklink support?

Question

fmpeg

Hi all.
ubuntu 16.04, Blackmagic Design DeckLink HD Extreme 3D/3D+ card is installed,
the driver is also installed.

[email protected]:~/ffmpeg$ lspci | grep -i deck
03:00.0 Multimedia video controller: Blackmagic Design DeckLink HD Extreme 3D/3D+

[email protected]:~/ffmpeg$ BlackmagicFirmwareUpdater status
0:	/dev/blackmagic/dv0 [DeckLink HD Extreme 3D+]	0x4b	OK

But when I try to compile with the parameter , I get
--enable-decklink
an error:
ERROR: DeckLinkAPI.h header not found
As I understand it, the config, as it were, did not find the piece of iron.
What could be the problem ?

[email protected]:~/ffmpeg$ ./configure --prefix=/opt --extra-version='1~xenial-by-jidckii' --libdir=/opt/lib/ffmpeg --shlibdir=/otp/lib/ffmpeg --toolchain=hardened --enable-pthreads --enable-runtime-cpudetect --enable-gpl --enable-shared --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-amrwbenc --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv --enable-libkvazaar --enable-libopenh264 --enable-nonfree --enable-libfdk-aac --enable-decklink --enable-libfaac 
ERROR: DeckLinkAPI.h header not found

If you think configure made a mistake, make sure you are using the latest
version from Git.  If the latest version fails, report the problem to the
[email protected] mailing list or IRC #ffmpeg on irc.freenode.net.
Include the log file "config.log" produced by configure as this will help
solve the problem.

Answer 1

The config knows nothing about the physical hardware. He is looking for SDK files, help him find them. See where the SDK is installed and the options `--extra-libs`, `--extra-ldflags`, `--extra-cflags` to suggest where to look for SDK files.