- High output quality; Lanczos3 scaling, subpixel precision everywhere,
white balance adjustment, mix of 16- and 32-bit floating point
- for intermediate calculations, dithered output.
+ for intermediate calculations, dithered output, optional 10-bit input
+ and output support.
- Proper sound support: Syncing of multiple unrelated sources through
- high-quality resampling, freely selectable input, cue out for headphones,
- dynamic range compression, simple EQ (low-cut), level meters conforming
- to EBU R128.
+ high-quality resampling, multichannel mixing with separate effects
+ per-bus, cue out for headphones, dynamic range compression,
+ three-band graphical EQ (pluss a fixed low-cut), level meters conforming
+ to EBU R128, automation via MIDI controllers.
- Theme engine encapsulating the design demands of each individual
event; Lua code is responsible for setting up the pixel processing
pipelines, running transitions etc., so that the visual look is
consistent between operators.
+ - Comprehensive monitoring through Prometheus metrics.
+
[1] For reference, that is: Core i7 4600U (dualcore 2.10GHz, clocks down
to 800 MHz after 30 seconds due to thermal constraints), Intel HD Graphics
4400 (ie., without the extra L4 cache from Iris Pro), single-channel DDR3 RAM
- 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 embedded in bmusb/, using libusb-1.0.
- You want a recent kernel (4.6.0 or newer) and libusb-1.0; see below.
+ 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.
- Movit, my GPU-based video filter library (https://movit.sesse.net).
- You will need at least version 1.3.1.
+ 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.
- Lua, for driving the theme engine.
+ - libpci, for printing friendly PCI device names in an error message.
+
If on Debian stretch or something similar, you can install everything you need
with:
- git submodule update --init
- apt install qtbase5-dev qt5-default pkg-config libmicrohttpd-dev \
- libusb-1.0-0-dev liblua5.2-dev libzita-resampler-dev libva-dev \
- libavcodec-dev libavformat-dev libswscale-dev libavresample-dev \
- libmovit-dev libegl1-mesa-dev libasound2-dev libx264-dev
-
-Exceptions as of June 2016:
+ apt install qtbase5-dev libqt5opengl5-dev qt5-default libqcustomplot-dev \
+ pkg-config libmicrohttpd-dev libusb-1.0-0-dev liblua5.2-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
- - You need libusb 1.0.21 or newer (not yet released; you will need to
- use git) if you want zerocopy USB. Zerocopy USB helps not only for
- performance, but also for stability.
+Exceptions as of July 2017:
- - Nageru depends on an avformat API for marking block boundaries in the
- muxed byte stream that didn't enter ffmpeg before version 3.1.
+ - You will need Movit from unstable; stretch only has 1.4.0.
+ - 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.
If you have a fast CPU (typically a quadcore desktop; most laptops will spend
most of their CPU on running Nageru itself), you can use x264 for the outgoing
stream instead of Quick Sync; it is much better quality for the same bitrate,
-and also has proper bitrate controls. Simple add --http-x264-video on the
+and also has proper bitrate controls. Simply add --http-x264-video on the
command line. (You may also need to add something like "--x264-preset veryfast",
since the default "medium" preset might be too CPU-intensive, but YMMV.)
The stream saved to disk will still be the Quick Sync-encoded stream, as it is
Legalese: TL;DR: Everything is GPLv3-or-newer compatible, and see
-Intel's copyright license at h264encode.h.
+Intel's copyright license at quicksync_encoder.h.
Nageru is Copyright (C) 2015 Steinar H. Gunderson <steinar+nageru@gunderson.no>.
along with this program. If not, see <http://www.gnu.org/licenses/>.
-Portions of h264encode.h and h264encode.cpp:
+Portions of quicksync_encoder.h and quicksync_encoder.cpp:
Copyright (c) 2007-2013 Intel Corporation. All Rights Reserved.
projects / nageru / blobdiff