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

[Arnaud Wijns]

Hi,

1) It is indeed the standard desktop video driver.
2) You can unzip it wherever you want, just make sure you use the same path when you prepare the configuration file.
3) You can make a « brew update » and « brew upgrade <program> » to make sure you have the latest version of all dependencies.

Have fun :)
Arnaud.

Arnaud WIJNS
ULB Podcast | Informaticien
http://podcast.ulb.ac.be <http://podcast.ulb.ac.be/>

Téléphone : 02/650.29.26
Email : arnaud.wijns at ulb.ac.be <mailto:arnaud.wijns at ulb.ac.be>

Université libre de Bruxelles
Campus du Solbosch - CP 160/26
Avenue F.D. Roosevelt, 50 - 1050 Ixelles

> Le 23 juin 2015 à 03:19, Ricardo Kleemann <ricardo at americasnet.com> a écrit :
> 
> Hello Arnaud,
> 
> Thanks for the great suggestion, I will give it a try.
> 
> More below…
> 
>> On Jun 22, 2015, at 5:28 AM, Arnaud Wijns <arnaud.wijns at ulb.ac.be <mailto:arnaud.wijns at ulb.ac.be>> wrote:
>> 
>> Hello Ricardo,
>> 
>> I am working on a project which uses the same devices for the same purpose.
>> 
>> You can use both bmdtools (with pipe to FFMPEG) or decklink support for FFMPEG (the second solution is easier and works better imo).
>> 
>> 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 <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’
>>>> ffmpeg -f decklink -i ‘UltraStudio Mini Recorder at 16’ output.mov
>> 
> 
> Thanks again!!
> 
> I’m sure I’ll soon be writing with more requests for assistance ;-)
> 
> Ricardo
> 
>> Cheers,
>> Arnaud.
>> 
>> Arnaud WIJNS
>> ULB Podcast | Informaticien
>> http://podcast.ulb.ac.be <http://podcast.ulb.ac.be/> <http://podcast.ulb.ac.be/ <http://podcast.ulb.ac.be/>>
>> 
>> Téléphone : 02/650.29.26
>> Email : arnaud.wijns at ulb.ac.be <mailto:arnaud.wijns at ulb.ac.be> <mailto:arnaud.wijns at ulb.ac.be <mailto:arnaud.wijns at ulb.ac.be>>
>> 
>> Université libre de Bruxelles
>> Campus du Solbosch - CP 160/26
>> Avenue F.D. Roosevelt, 50 - 1050 Ixelles
>> 
>>> Le 16 juin 2015 à 19:30, Ricardo Kleemann <ricardo at americasnet.com> a écrit :
>>> 
>>> On Tue, Jun 16, 2015 at 9:03 AM, Carl Eugen Hoyos <cehoyos at ag.or.at> wrote:
>>> 
>>>> Ricardo Kleemann <ricardo <at> americasnet.com> writes:
>>>> 
>>>>> I have a BlackMagic Design Ultrastudio mini recorder
>>>>> connected to macbook pro thunderbolt. But it seems
>>>>> the only program that recognizes the device is FMLE.
>>>> 
>>>> What is FMLE?
>>>> Why can't you feed whatever FMLE produces to ffmpeg
>>>> (the application)?
>>>> 
>>>> 
>>> Sorry, it is Flash Media Live Encoder, and it does its own encoding and
>>> sends to a server like Red5 or Flash Media Server.
>>> 
>>> I was hoping to not have to use FMLE and instead something that can push
>>> directly to ffserver.
>>> 
>>> Certainly I can feed the FMLE output to ffmpeg and then to ffserver but
>>> then I'm just adding another component into the chain.
>>> 
>>> I was hoping to go directly to ffserver, if for example ffmpeg was able to
>>> see the input video device.
>>> 
>>> thanks
>>> Ricardo
>>> _______________________________________________
>>> ffmpeg-user mailing list
>>> ffmpeg-user at ffmpeg.org
>>> http://ffmpeg.org/mailman/listinfo/ffmpeg-user
>> 
>> _______________________________________________
>> ffmpeg-user mailing list
>> ffmpeg-user at ffmpeg.org <mailto:ffmpeg-user at ffmpeg.org>
>> http://ffmpeg.org/mailman/listinfo/ffmpeg-user <http://ffmpeg.org/mailman/listinfo/ffmpeg-user>
> 
> _______________________________________________
> ffmpeg-user mailing list
> ffmpeg-user at ffmpeg.org <mailto:ffmpeg-user at ffmpeg.org>
> http://ffmpeg.org/mailman/listinfo/ffmpeg-user <http://ffmpeg.org/mailman/listinfo/ffmpeg-user>