From cea7a66c16726835a4a17ef0a4600724b02d55ca Mon Sep 17 00:00:00 2001
From: Jeff Moe <moe@spacecruft.org>
Date: Wed, 1 Mar 2023 15:54:31 -0700
Subject: [PATCH] Audio chapter. Misc notes

---
 src/Applications.tex    |  2 ++
 src/Audio.tex           | 23 +++++++++++++++++++++++
 src/BlackmagicLibre.tex |  4 ++--
 src/Formats.tex         | 11 +++++++++++
 4 files changed, 38 insertions(+), 2 deletions(-)
 create mode 100644 src/Audio.tex

diff --git a/src/Applications.tex b/src/Applications.tex
index f07ca34..9a9b114 100644
--- a/src/Applications.tex
+++ b/src/Applications.tex
@@ -23,6 +23,7 @@ Blackmagic Design hardware.
   \item [Natron]
   \item [FFMPEG]
   \item [Handbrake]
+  \item [OBS Studio]
 \end{description}
 \end{mdframed}
 
@@ -32,5 +33,6 @@ Blackmagic Design hardware.
 \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.
 \end{description}
 
diff --git a/src/Audio.tex b/src/Audio.tex
new file mode 100644
index 0000000..004ea25
--- /dev/null
+++ b/src/Audio.tex
@@ -0,0 +1,23 @@
+%
+% Audio.tex
+%
+% Blackmagic Libre
+%
+% Copyright (C) 2023, Jeff Moe
+%
+% This document is licensed under the Creative Commons Attribution 4.0
+% International Public License (CC BY-SA 4.0) by Jeff Moe.
+%
+
+\section{Audio}
+\label{sec:overview-audio}
+\index{audio}
+
+Blackmagic Design audio with free software.
+
+\section{Unorganized Notes}
+
+\begin{description}
+  \item Audio streaming via HDMI from camera works too.
+\end{description}
+
diff --git a/src/BlackmagicLibre.tex b/src/BlackmagicLibre.tex
index f5202d1..1f4b53b 100644
--- a/src/BlackmagicLibre.tex
+++ b/src/BlackmagicLibre.tex
@@ -482,10 +482,10 @@ leftmargin=1cm,rightmargin=1cm
 % \chapterconf{Name of file to include}{Title of Chapter}{Subtitle}
 % Comment out a line to not render that chapter
 \chapterconf{Hardware}{Hardware}{Blackmagic Design Hardware}
+\chapterconf{Cinema6k}{Cinema 6K}{Blackmagic Pocket Cinema Camera 6K}
 \chapterconf{Formats}{Formats and Codecs}{Blackmagic Design Formats and Codecs}
 \chapterconf{Applications}{Applications}{Libre Applications}
-% Don't render for now.
-\chapterconf{Cinema6k}{Cinema 6K}{Blackmagic Pocket Cinema Camera 6K}
+\chapterconf{Audio}{Audio}{Sound and Audio}
 \chapterconf{Contact}{Contact}{Email, Chat, Forum}
 %% END MAINMATTER CHAPTERS %%%
 
diff --git a/src/Formats.tex b/src/Formats.tex
index 45f58a5..436ec58 100644
--- a/src/Formats.tex
+++ b/src/Formats.tex
@@ -49,5 +49,16 @@ Dynamic range.
   \item The 4k .mov works ok.
   \item Video .mov on device at 4k looks good played with mpv. But something is a bit off with colorspace, it is like looking thru an ND filter.
   \item Like Blackmagic RAW (.braw) doesn't work by default in debian, but the ProRes (.mov) does.
+  \item I can get HDMI out working. I can get 4K video recording to SD working with libre software.
+  \item Not working: 6K, due to it only recording to their proprietary format.
+  \item Not working: HDR (multi exposure per frame), due to it only recording to their proprietary format, afact.
+  \item Definitely not libre stuff.
+  \item But one of their formats is .mov, which ffmpeg, etc can read.
+  \item Their other format is .braw, their proprietary raw, which can't really be read libre.
+  \item One feature is interlacing of frames with different exposure levels.
+  \item So "in software"/postprocessing you can set exposure values with far more control.
+  \item And just better detail overall.
+  \item Canon has HDR still photo built into the camera.  Or on other cameras you can just do 3 (or whatever) then use software such as darkdable to make the final image.
+  \item The Blackmagic has HDR Still Image, .dng, that rawtherapee can read, but nothng else i tried can.(edited)
 \end{description}