1 Nageru 1.7.0, March 8th, 2018
3 - Support for HTML5 graphics directly in Nageru, through CEF
4 (Chromium Embedded Framework). This performs better and is more
5 flexible than integrating with CasparCG over a socket. Note that
6 CEF is an optional component; see the documentation for more
9 - Add an HTTP endpoint for enumerating channels and one for getting
10 only their colors. Intended for remote tally applications;
11 set the documentation.
13 - Add a video grid display that removes the audio controls and shows
14 the video channels only, potentially in multiple rows if that makes
15 for a larger viewing area.
17 - Themes can now present simple menus in the Nageru UI. See the
18 documentation for more information.
23 Nageru 1.6.4, January 25th, 2018
25 - Fix compilation with the upcoming FFmpeg 3.5.
27 - Switch to LuaJIT for the theme engine, which is faster.
29 - Various bugfixes and smaller optimizations.
32 Nageru 1.6.3, November 8th, 2017
34 - Add quick-cut keys (Q, W, E, etc.) below the preview keys.
35 Since it's easy to hit these by accident and put up a signal
36 you didn't want, they are disabled by default (they can be
37 enabled in the video menu, or with the command line flag
40 - Rework the x264 speedcontrol presets to better match newer
43 - Add an option for changing the HTTP port (--http-port).
45 - Various smaller bug and integration fixes.
48 Nageru 1.6.2, July 16th, 2017
50 - Various smaller Kaeru fixes, mostly around metrics. Also,
51 you can now adjust the x264 bitrate in Kaeru (in 100 kbit/sec
52 increments) by sending SIGUSR1 (higher) or SIGUSR2 (lower).
55 Nageru 1.6.1, July 9th, 2017
57 - Add native export of Prometheus metrics.
59 - Rework the frame queue drop algorithm. The new one should handle tricky
60 situations much better, especially when a card is drifting very slowly
61 against the master timer.
63 - Add Kaeru, an experimental transcoding tool based on Nageru code.
64 Kaeru can run headless on a server without a GPU to transcode a
65 Nageru stream into a lower-bitrate one, replacing VLC.
67 - Work around a bug in some versions of NVIDIA's OpenGL drivers that would
68 crash Nageru after about three hours (fix in cooperation with Movit).
70 - Fix a crash with i965-va-driver 1.8.x.
72 - Reduce mutex contention in certain critical places, causing lower tail
76 Nageru 1.6.0, May 29th, 2017
78 - Add support for having videos (from file or from URL) as a separate
79 input channels, albeit with some limitations. Apart from the obvious use of
80 looping pause clips or similar, this can be used to integrate with CasparCG;
81 see the manual for more details.
83 - Add a frame analyzer (accessible from the Video menu) containing an
84 RGB histogram and a color dropped tool. This is useful in calibrating
85 video chains by playing back a known signal. Note that this adds a
86 dependency on QCustomPlot.
88 - Allow overriding Y'CbCr input interpretation, for inputs that don't
89 use the correct settings. Also, Rec. 601 is now used by default instead
90 of Rec. 709 for SD resolutions.
92 - Support other sample rates than 48000 Hz from bmusb.
95 Nageru 1.5.0, April 5th, 2017
97 - Support for low-latency HDMI/SDI output in addition to (or instead of) the
98 stream. This currently only works with DeckLink cards, not bmusb. See the
99 manual for more information.
101 - Support changing the resolution from the command line, instead of locking
102 everything to 1280x720.
104 - The A/V sync code has been rewritten to be more in line with Fons
105 Adriaensen's original paper. It handles several cases much better,
106 in particular when trying to match 59.94 and 60 Hz sources to each other.
107 However, it might occasionally need a few extra seconds on startup to
108 lock properly if startup is slow.
110 - Add support for using x264 for the disk recording. This makes it possible,
111 among other things, to run Nageru on a machine entirely without VA-API
114 - Support for 10-bit Y'CbCr, both on input and output. (Output requires
115 x264 disk recording, as Quick Sync Video does not support 10-bit H.264.)
116 This requires compute shader support, and is in general a little bit
117 slower on input and output, due to the extra amount of data being shuffled
118 around. Intermediate precision is 16-bit floating-point or better,
121 - Enable input mode autodetection for DeckLink cards that support it.
122 (bmusb mode has always been autodetected.)
124 - Add functionality to add a time code to the stream; useful for debugging
127 - The live display is now both more performant and of higher image quality.
129 - Fix a long-standing issue where the preview displays would be too bright
130 when using an NVIDIA GPU. (This did not affect the finished stream.)
132 - Many other bugfixes and small improvements.
135 Nageru 1.4.2, November 24th, 2016
137 - Fix a thread race that would sometimes cause x264 streaming to go awry.
140 Nageru 1.4.1, November 6th, 2016
145 Nageru 1.4.0, October 26th, 2016
147 - Support for multichannel (or more accurately, multi-bus) audio,
148 choosable from the UI or using the --multichannel command-line
149 flag. In multichannel mode, you can take in inputs from multiple
150 different sources (or different channels on the same source, for
151 multichannel sound cards), apply effects to them separately and then
152 mix them together. This includes both audio from the video cards
153 as well as ALSA inputs, including hotplug. Ola Gundelsby contributed
154 invaluable feedback on this feature throughout the entire
157 - Support for having MIDI controllers control various aspects of the
158 audio UI, with relatively flexible mapping. Note that different
159 MIDI controllers can vary significantly in what protocol they speak,
160 so Nageru will not necessarily work with all. (The primary testing
161 controller has been the Akai MIDImix, and a pre-made mapping for
162 that is included. The Korg nanoKONTROL2 has also been tested and
163 works, but it requires some Korg-specific SysEx commands to make
164 the buttons and lights work.)
166 - Add a disk space indicator to the main window.
168 - Various bugfixes. In particular, an issue where the audio would pitch
169 up sharply after a series of many dropped frames has been fixed.
172 Nageru 1.3.4, August 2nd, 2016
177 Nageru 1.3.3, July 27th, 2016
179 - Various changes to make distribution packaging easier; in particular,
180 theme data can be picked up from /usr/local/share/nageru.
182 - Fix various FFmpeg deprecation warnings, now that we need FFmpeg
183 3.1 for other reasons anyway.
186 Nageru 1.3.2, July 23rd, 2016
188 - Allow limited hotplugging (unplugging and replugging) of USB cards.
189 You can use the new command-line option --num-fake-cards (-C) to add
190 fake cards that show only a single color and that will be replaced
191 by real cards as you plug them in; you can also unplug cards and have
192 them be replaced by fake cards. Fake cards can also be used for testing
193 Nageru without actually having any video cards available.
195 - Add Metacube timestamping of every keyframe, for easier detection of
196 streams not keeping up. Works with the new timestamp feature of
197 Cubemap 1.3.1. Will be ignored (save for some logging) in older
200 - The included default theme has been reworked and cleaned up to be
201 more understandable and extensible.
203 - Add more command-line options for initial audio setup.
206 Nageru 1.3.1, July 1st, 2016
208 - Various display bugfixes.
211 Nageru 1.3.0, June 26th, 2016
213 - It is now possible, given enough CPU power (e.g., a quad-core Haswell or
214 faster desktop CPU), to output a stream that is suitable for streaming
215 directly to end users without further transcoding. In particular, this
216 includes support for encoding the network stream with x264 (the stream
217 saved to disk is still done using Quick Sync), for Metacube framing (for
218 streaming to the Cubemap reflector), and for choosing the network stream
219 mux. For more information, see the README.
221 - Add a flag (--disable-alsa-output) to disable ALSA monitoring output.
223 - Do texture uploads from the main thread instead of from separate threads;
224 may or may not improve stability with NVIDIA's proprietary drivers.
226 - When beginning a new video segment, the shutdown of the old encoder
227 is now done in a background thread, in order to not disturb the external
228 stream. The audio still goes into a somewhat random stream, though.
230 - You can now override the default stream-to-card mapping with --map-signal=
233 - Nageru now tries to lock itself into RAM if it has the permissions to do
234 so, for better realtime behavior. (Writing the stream to disk tends to
235 fill the buffer cache, eventually paging less-used parts of Nageru out.)
237 - Various fixes for deadlocks, memory leaks, and many other errors.
240 Nageru 1.2.1, April 15th, 2016
242 - Images are now updated from disk about every second, so that it is possible
243 to update e.g. overlays during streaming, although somewhat slowly.
245 - Fix support for PNG images.
247 - You can now send SIGHUP to start a new cut instead of using the menu.
249 - Added a --help option.
251 - Various tweaks to OpenGL fence handling.
254 Nageru 1.2.0, April 6th, 2016
256 - Support for Blackmagic's PCI and Thunderbolt cards, using the official
257 (closed-source) Blackmagic drivers. (You do not need the SDK installed, though.)
258 You can use PCI and USB cards pretty much interchangeably.
260 - Much more stable handling of frame queues on non-master cards. In particular,
261 you can have a master card on 50 Hz and another card on 60 Hz without getting
262 lots of warning messages and a 10+ frame latency on the second card.
264 - Many new options in the right click menu on cards: Adjustable video inputs,
265 adjustable audio inputs, adjustable resolutions, ability to select card for
268 - Add support for starting with almost all audio processing turned off
271 - The UI now marks inputs with red or green to mark them as participating in
272 the live or preview signal, respectively. Red takes priority. (Actually,
273 it merely asks the theme for a color for each input; the theme contains
276 - Add support for uncompressed video instead of H.264 on the HTTP server,
277 while still storing H.264 to files (--http-uncompressed-video). Note that
278 depending on your client, this might not actually be more CPU efficient
279 even on localhost, so be sure to check.
281 - Add a simpler, less featureful theme (simple.lua) that should be easier to
282 understand for beginners. Themes are now also choosable with -t on the command
285 - Too many bugfixes and small tweaks to list. In particular, many memory leaks
286 in the streaming part have been identified and fixed.
289 Nageru 1.1.0, February 24th, 2016
291 - Support doing the H.264 encoding on a different graphics device from the one
292 doing the mixing. In particular, this makes it possible to use Nageru on an
293 NVIDIA GPU while still encoding H.264 video using Intel Quick Sync (NVENC
294 is not supported yet) -- it is less efficient since the data needs to be read
295 back via the CPU, but the NVIDIA cards and drivers are so much faster that it
296 doesn't really matter. Tested on a GTX 950 with the proprietary drivers.
298 - In the included example theme, fix fading to/from deinterlaced sources.
300 - Various smaller compilation, distribution and documentation fixes.
303 Nageru 1.0.0, January 30th, 2016