- An Intel processor with Intel Quick Sync, or otherwise some hardware
H.264 encoder exposed through VA-API. Note that you can use VA-API over
DRM instead of X11, to use a non-Intel GPU for rendering but still use
- Quick Sync (by giving e.g. “--va-display /dev/dri/renderD128”).
+ Quick Sync (Nageru does this automatically for you if needed).
- Two or more Blackmagic USB3 or PCI cards, either HDMI or SDI.
The PCI cards need Blackmagic's own drivers installed. The USB3 cards
are driven through the “bmusb” driver, using libusb-1.0. If you want
zerocopy USB, you need libusb 1.0.21 or newer, as well as a recent
kernel (4.6.0 or newer). Zerocopy USB helps not only for performance,
- but also for stability. You need at least version 0.7.0.
+ but also for stability. You need at least version 0.7.3.
- Movit, my GPU-based video filter library (https://movit.sesse.net).
You will need at least version 1.5.2.
- LuaJIT, for driving the theme engine.
- - libpci, for printing friendly PCI device names in an error message.
+ - Meson, for building.
- Optional: CEF (Chromium Embedded Framework), for HTML graphics.
If you build without CEF, the HTMLInput class will not be available from
http://opensource.spotify.com/cefbuilds/index.html
Simply download the right build for your platform (the “minimal” build
- is fine) and add
CEF_DIR=<path>/cef_binary_X.XXXX.XXXX.XXXXXXXX_linux64
- on the make command line (substituting X with the real version as required).
+ is fine) and add
-Dcef_dir=<path>/cef_binary_X.XXXX.XXXX.XXXXXXXX_linux64
+ on the meson command line (substituting X with the real version as required).
If on Debian stretch or something similar, you can install everything you need
libzita-resampler-dev libva-dev libavcodec-dev libavformat-dev \
libswscale-dev libavresample-dev libmovit-dev libegl1-mesa-dev \
libasound2-dev libx264-dev libbmusb-dev protobuf-compiler \
- libprotobuf-dev libpci-dev
+ libprotobuf-dev
-Exceptions as of February 2018:
+Exceptions as of November 2018:
- - You will need Movit from unstable; stretch only has 1.4.0.
+ - You will need Movit from testing or unstable; stretch only has 1.4.0.
- - You will need bmusb from unstable; stretch only has 0.5.4.
+ - You will need bmusb from testing or unstable; stretch only has 0.5.4.
- - Debian does not carry CEF (but it is optional).
+ - You will need a Meson backport; the version in stretch is too old.
+
+ - Debian does not carry CEF (but it is optional). You can get experimental
+ (and not security-supported) CEF Debian packages built for unstable at
+ http://storage.sesse.net/cef/, and then configure Nageru with
+
+ meson obj -Dcef_dir=/usr/lib/x86_64-linux-gnu/cef -Dcef_build_type=system -Dcef_no_icudtl=true
The patches/ directory contains a patch that helps zita-resampler performance.
It is meant for upstream, but was not in at the time Nageru was released.
It is taken to be by Steinar H. Gunderson <sesse@google.com> (ie., my ex-work
email), and under the same license as zita-resampler itself.
-To start it, just hook up your equipment, type “make” and then “./nageru”.
+Nageru uses Meson to build. For a default build, type
+
+ meson obj && cd obj && ninja
+
+To start it, just hook up your equipment, and then type “cd nageru && ./nageru”.
+
It is strongly recommended to have the rights to run at real-time priority;
it will make the USB3 threads do so, which will make them a lot more stable.
(A reasonable hack for testing is probably just to run it as root using sudo,
projects / nageru / blobdiff