Nageru is a live video mixer, based around the standard M/E workflow.
+Futatabi is a multicamera slow motion video server.
-Features:
+Nageru features:
- High performance on modest hardware (720p60 with two input streams
on my Thinkpad X240[1]); almost all pixel processing is done on the GPU.
pipelines, running transitions etc., so that the visual look is
consistent between operators.
+ - HTML rendering (through Chromium Embedded Framework), for high-quality
+ and flexible overlay or other graphics.
+
- Comprehensive monitoring through Prometheus metrics.
[1] For reference, that is: Core i7 4600U (dualcore 2.10GHz, clocks down
(so 12.8 GB/sec theoretical memory bandwidth, shared between CPU and GPU).
-Nageru is in beta stage. It currently needs:
-
- - 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”).
+Nageru currently needs:
- - Two or more Blackmagic USB3 or PCI cards, either HDMI or SDI.
+ - Some sort of video capture cards; typically two or more Blackmagic USB3
+ or PCI cards, either HDMI or SDI (V4L2 is not generally supported).
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.
+ are driven through the “bmusb” driver, using libusb-1.0.
- Movit, my GPU-based video filter library (https://movit.sesse.net).
You will need at least version 1.5.2.
- Qt 5.5 or newer for the GUI.
- - QCustomPlot for the histogram display in the frame analyzer.
-
- libmicrohttpd for the embedded web server.
- x264 for encoding high-quality video suitable for streaming to end users.
- - ffmpeg for muxing, and for encoding audio. You will need at least
- version 3.1.
+ - FFmpeg for muxing, and for encoding audio. You will need at least
+ version 5.1.
- Working OpenGL; Movit works with almost any modern OpenGL implementation.
- Nageru has been tested with Intel on Mesa (you want 11.2 or newer, due
- to critical stability bugfixes), and with NVIDIA's proprietary drivers.
- AMD's proprietary drivers (fglrx) are known not to work due to driver bugs;
- I am in contact with AMD to try to get this resolved.
+ Nageru has been tested with Intel on Mesa, and with NVIDIA's proprietary drivers.
+ The status of AMD's proprietary drivers is currently unknown.
- libzita-resampler, for resampling sound sources so that they are in sync
between sources, and also for oversampling for the peak meter.
- - Lua, for driving the theme engine.
+ - LuaJIT, for driving the theme engine. You will need at least version 2.1.
+
+ - libjpeg, for encoding MJPEG streams when VA-API JPEG support is not
+ available.
+
+ - Protocol Buffers (protobuf), for storing various forms of settings and
+ state.
+
+ - Meson, for building.
+
+ - Optional: CEF (Chromium Embedded Framework), for HTML graphics.
+ If you build without CEF, the HTMLInput class will not be available from
+ the theme. You can get binary downloads of CEF from
+
+ http://opensource.spotify.com/cefbuilds/index.html
+
+ Simply download the right build for your platform (the “minimal” build
+ 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).
+
+ - Optional: libsrt, for SRT inputs (by default, Nageru will listen on
+ port 9710, although you can change this port on the command line,
+ turn it off with --srt-port -1, or turn it off live in the UI).
+ SRT can also be used for output in addition to listening for HTTP
+ (see --srt-destination). If you build with libsrt, make sure it is not
+ linked to OpenSSL, for license reasons.
- - libpci, for printing friendly PCI device names in an error message.
+ - Optional: SVT-AV1, for encoding high-quality video suitable for streaming to
+ end users (higher quality than using x264, but not nearly as mature).
+ You will need at least version 1.5.0.
-If on Debian stretch or something similar, you can install everything you need
+Futatabi also needs:
+
+ - A fast GPU with OpenGL 4.5 support (GTX 1080 or similar recommended for
+ best quality at HD resolutions, although 950 should work).
+
+ - SQLite, for storing state.
+
+
+If on Debian bullseye or something similar, you can install everything you need
with:
- apt install qtbase5-dev libqt5opengl5-dev qt5-default libqcustomplot-dev \
- pkg-config libmicrohttpd-dev libusb-1.0-0-dev liblua5.2-dev \
+ apt install qtbase5-dev libqt5opengl5-dev qt5-default \
+ pkg-config libmicrohttpd-dev libusb-1.0-0-dev libluajit-5.1-dev \
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 libsqlite3-dev meson libjpeg-dev libsrt-gnutls-dev
+
+Exceptions as of September 2023:
-Exceptions as of July 2017:
+ - 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
- - You will need Movit from unstable; stretch only has 1.4.0.
+ meson obj -Dcef_dir=/usr/lib/x86_64-linux-gnu/cef -Dcef_build_type=system -Dcef_no_icudtl=true
- - You will need bmusb from unstable; stretch only has 0.5.4.
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 and Futatabi use Meson to build. For a default build (building both),
+type
+
+ meson obj && cd obj && ninja
+
+To start Nageru, hook up your equipment, and then type “./nageru”.
+For Futatabi documentation, please see https://nageru.sesse.net/doc/.
+
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,
to throw or cast. (I also later learned that it could mean to face defeat or
give up, but that's not the intended meaning.)
+The name “Futatabi” comes from the Japanese adverb 再び (futatabi), which means
+“again” or “for the second time”.
+
Nageru's home page is at https://nageru.sesse.net/, where you can also find
-contact information and link to the latest version.
+contact information, full documentation and link to the latest version.
Legalese: TL;DR: Everything is GPLv3-or-newer compatible, and see
Portions Copyright (C) 2012-2015 Fons Adriaensen <fons@linuxaudio.org>.
Portions Copyright (C) 2008-2015 Fons Adriaensen <fons@linuxaudio.org>.
Portions Copyright (c) 2007-2013 Intel Corporation. All Rights Reserved.
+Portions Copyright (C) 2019 Yngve Molnes.
This program is free software: you can redistribute it and/or modify
projects / nageru / blobdiff