[FFmpeg-user] what program to use to grab device and send to ffserver?

[Jim Shupert]

1) Install the Mac driver for BMD (BMD Desktop)

> I assume you mean the standard desktop video driver (which is installed together with Media Express)?
>
>> 2) Download the Decklink SDK (from https://www.blackmagicdesign.com/support/download/f3e35f03b97440c4893fdf7e0dfdf97c/Mac%20OS%20X)
> Where should I unzip the sdks, does it matter?
>
>> 3) Install all dependencies for FFMPEG (use Brew as explained in the FFMPEG compilation guide for Mac OS)
>> —> brew install automake fdk-aac git lame libass libtool libvorbis libvpx \
>>        opus sdl shtool texi2html theora wget x264 xvid yasm
> If I’ve run brew before to install the stuff should I remove and reinstall?
>
>> 4) Download FFMPEG from Git
>> —> git clone git://source.ffmpeg.org/ffmpeg.git ffmpeg
>>        cd ffmpeg
>> 5) Prepare the configuration file (adapt according to your needs BUT —enable-deckling is required for BMD). Adapt the path for your Decklink SDK
>> —> ./configure  --prefix=/usr/local --enable-gpl --enable-nonfree --enable-libass \
>> --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus \
>> --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --enable-decklink --extra-cflags=-I/somepath/blackmagicsdk/Mac/include --extra-ldflags=-L/somepath/blackmagicsdk/Mac/include
>> 6) If you use Mac OS X 10.9 or above, edit « config.mak »
>> —> vi config.mak
>> 	Remove all references to « -std=c99 » (there are 2)
>> 7) Edit DeckLinkAPIDispatch.cpp (in /somepath/blackmagicsdk/Mac/include)
>> —> add the word "static" to the beginning of lines 56, 77, and 157
>> 56: void     InitDeckLinkAPI (void)
>> 77: bool            IsDeckLinkAPIPresent (void)
>> 157: void InitBMDStreamingAPI(void)
>> 8) Make && sudo make install
>>
>> Now that FFMPEG in installed with Decklink support, you can get the audio-video stream from your BMD devices directly in FFMPEG.
>>
>> Use the following commands:
>>>> ffmpeg -f decklink -list_devices 1 -i dummy
>>>> ffmpeg -f decklink -list_formats 1 -i ‘UltraStudio Mini Recorder’
>>>>
If I wish to do this on a linux system [ ubuntu ]
do I need to edit

the DeckLinkAPIDispatch.cpp & config.mak

or simply

—enable-deckling in the config?

basically - what are the suggested steps?

thank you