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% Applications.tex
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% Blackmagic Libre
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% Copyright (C) 2023, Jeff Moe
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% This document is licensed under the Creative Commons Attribution 4.0
% International Public License (CC BY-SA 4.0) by Jeff Moe.
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\section{Libre Applications}
\label{sec:overview-applications}
\index{applications}

An overview of free software applications that can be used with
Blackmagic Design hardware.


\begin{mdframed}[backgroundcolor=blue!10,linecolor=blue!30]
\begin{description}
  \item [Kdenlive]
  \item [Natron]
  \item [FFMPEG]
  \item [Handbrake]
  \item [OBS Studio]
  \item [Darktable]
  \item [Rawtherapee]
  \item [Gimp]
  \item [Shotcut]
\end{description}
\end{mdframed}


\section{OBS Studio}
Notes.

I have the Blackmagic connected to OBS Studio live via USB to HDMI converter. Before I was re-encoding it and restreaming it to OBS. In this case, I have it on the OBS machine itself, a panda board. So Camera -> HDMI -> USB -> panda -> OBS Studio -> stream out.  This way the latency is near realtime-ish too. Works quite well, for the bit I've tested. 

This Blackmagic 6K, being able to use any lens, and can stream out 1920x1080, is the best "webcam" setup I've used.
It's also good for a lot of other reasons, of course. But with the image quality detail directly from the sensor, and being able to use "any" lens, is so nice.


This is cam -> hdmi -> usb -> computer -> obs -> restreamer (lan) -> owncast (wan)


\section{Kdenlive}
kdenlive can read Blackmagic 3D LUT files.
Cool, so if something was shot with "Film" setting, I can load it in KDE, apply a LUT filter, load the Blackmagic Film to Video LUT and it all looks magically nice.

Using kdenlive a bit. Happy to see that Blackmagic LUTs work, kind of like magic as name says.
But the LUT conversions provided are all Film to XYZ.  So it may be best to shoot in Film mode to begin with, for most flexibility.
As there are four (maybe 5) LUTs available for Film -> Video etc conversion.
On "gamma" one that looks spectactular.

kdenlive can read the Blackmagic .mov files, but not .braw.


\section{Unorganized Notes}

\begin{description}
  \item I think the BRAW format is a video HDR format (e.g. takes each photo at multiple exposures).
  \item Natron can import BRAW, but requires propietary sdk bits.
  \item Audio streaming via HDMI from camera works too.
  \item I can tether via the camera and Darktable via USB.
  \item But no live pic. Maybe cuz HDMI at same time (?).
  \item Ya, USB-C is USB PTP, but no live view.
  \item Can't copy images via PTP either.  At least it sees it; sort of a start.

\end{description}

