1 Nageru 1.7.3, May 22nd, 2018
3 - When using multichannel audio, add a control for adjusting the
4 stereo width (from normal stereo to mono, all the way to
7 - Removed --http-coarse-timebase (it is now always on).
12 Nageru 1.7.2, April 28th, 2018
14 - Several improvements to video (FFmpeg) inputs: You can now use
15 them as audio sources, you can right-click on video channels
16 to change URL/filename on-the-fly, themes can ask for forced
17 disconnection (useful for network sources that are hanging),
18 and various other improvements. Be aware that the audio support
19 may still be somewhat rough, as A/V sync of arbitrary video
20 playout is a hard problem.
22 - The included themes have been fixed to properly make the returned
23 chain preparation functions independent of global state (e.g. if
24 the white balance for a channel was changed before the frame was
25 actually rendered). If you are using a custom theme, you may want
26 to apply similar fixes to it.
28 - In Metacube stream output, mark each keyframe with a pts metadata
29 block. This allows Cubemap 1.4.0 or newer to serve fMP4 fragments
30 for HLS from Nageru's output, without any further remuxing or
33 - If needed, Nageru will now automatically try to autodetect a
34 usable --va-display parameter by probing all DRM nodes for H.264
35 encoders. This removes the need to set --va-display in almost all
36 cases, and also removes the dependency on libpci.
38 - For GPUs that support querying available memory (in practice only
39 NVIDIA GPUs at the current time), expose the amount of used/total
40 GPU memory both on standard output and in the Prometheus metrics
41 (as well as included Grafana dashboard).
43 - The Grafana dashboard now supports heatmaps for the chosen x264
44 speedcontrol preset (requires Grafana 5.1 or newer). (There used to
45 be a heatmap earlier, but it was all broken.)
50 Nageru 1.7.1, March 26th, 2018
52 - Various bugfixes, mostly related to HTML and video inputs.
55 Nageru 1.7.0, March 8th, 2018
57 - Support for HTML5 graphics directly in Nageru, through CEF
58 (Chromium Embedded Framework). This performs better and is more
59 flexible than integrating with CasparCG over a socket. Note that
60 CEF is an optional component; see the documentation for more
63 - Add an HTTP endpoint for enumerating channels and one for getting
64 only their colors. Intended for remote tally applications;
65 set the documentation.
67 - Add a video grid display that removes the audio controls and shows
68 the video channels only, potentially in multiple rows if that makes
69 for a larger viewing area.
71 - Themes can now present simple menus in the Nageru UI. See the
72 documentation for more information.
77 Nageru 1.6.4, January 25th, 2018
79 - Fix compilation with the upcoming FFmpeg 3.5.
81 - Switch to LuaJIT for the theme engine, which is faster.
83 - Various bugfixes and smaller optimizations.
86 Nageru 1.6.3, November 8th, 2017
88 - Add quick-cut keys (Q, W, E, etc.) below the preview keys.
89 Since it's easy to hit these by accident and put up a signal
90 you didn't want, they are disabled by default (they can be
91 enabled in the video menu, or with the command line flag
94 - Rework the x264 speedcontrol presets to better match newer
97 - Add an option for changing the HTTP port (--http-port).
99 - Various smaller bug and integration fixes.
102 Nageru 1.6.2, July 16th, 2017
104 - Various smaller Kaeru fixes, mostly around metrics. Also,
105 you can now adjust the x264 bitrate in Kaeru (in 100 kbit/sec
106 increments) by sending SIGUSR1 (higher) or SIGUSR2 (lower).
109 Nageru 1.6.1, July 9th, 2017
111 - Add native export of Prometheus metrics.
113 - Rework the frame queue drop algorithm. The new one should handle tricky
114 situations much better, especially when a card is drifting very slowly
115 against the master timer.
117 - Add Kaeru, an experimental transcoding tool based on Nageru code.
118 Kaeru can run headless on a server without a GPU to transcode a
119 Nageru stream into a lower-bitrate one, replacing VLC.
121 - Work around a bug in some versions of NVIDIA's OpenGL drivers that would
122 crash Nageru after about three hours (fix in cooperation with Movit).
124 - Fix a crash with i965-va-driver 1.8.x.
126 - Reduce mutex contention in certain critical places, causing lower tail
127 latency in the mixer.
130 Nageru 1.6.0, May 29th, 2017
132 - Add support for having videos (from file or from URL) as a separate
133 input channels, albeit with some limitations. Apart from the obvious use of
134 looping pause clips or similar, this can be used to integrate with CasparCG;
135 see the manual for more details.
137 - Add a frame analyzer (accessible from the Video menu) containing an
138 RGB histogram and a color dropped tool. This is useful in calibrating
139 video chains by playing back a known signal. Note that this adds a
140 dependency on QCustomPlot.
142 - Allow overriding Y'CbCr input interpretation, for inputs that don't
143 use the correct settings. Also, Rec. 601 is now used by default instead
144 of Rec. 709 for SD resolutions.
146 - Support other sample rates than 48000 Hz from bmusb.
149 Nageru 1.5.0, April 5th, 2017
151 - Support for low-latency HDMI/SDI output in addition to (or instead of) the
152 stream. This currently only works with DeckLink cards, not bmusb. See the
153 manual for more information.
155 - Support changing the resolution from the command line, instead of locking
156 everything to 1280x720.
158 - The A/V sync code has been rewritten to be more in line with Fons
159 Adriaensen's original paper. It handles several cases much better,
160 in particular when trying to match 59.94 and 60 Hz sources to each other.
161 However, it might occasionally need a few extra seconds on startup to
162 lock properly if startup is slow.
164 - Add support for using x264 for the disk recording. This makes it possible,
165 among other things, to run Nageru on a machine entirely without VA-API
168 - Support for 10-bit Y'CbCr, both on input and output. (Output requires
169 x264 disk recording, as Quick Sync Video does not support 10-bit H.264.)
170 This requires compute shader support, and is in general a little bit
171 slower on input and output, due to the extra amount of data being shuffled
172 around. Intermediate precision is 16-bit floating-point or better,
175 - Enable input mode autodetection for DeckLink cards that support it.
176 (bmusb mode has always been autodetected.)
178 - Add functionality to add a time code to the stream; useful for debugging
181 - The live display is now both more performant and of higher image quality.
183 - Fix a long-standing issue where the preview displays would be too bright
184 when using an NVIDIA GPU. (This did not affect the finished stream.)
186 - Many other bugfixes and small improvements.
189 Nageru 1.4.2, November 24th, 2016
191 - Fix a thread race that would sometimes cause x264 streaming to go awry.
194 Nageru 1.4.1, November 6th, 2016
199 Nageru 1.4.0, October 26th, 2016
201 - Support for multichannel (or more accurately, multi-bus) audio,
202 choosable from the UI or using the --multichannel command-line
203 flag. In multichannel mode, you can take in inputs from multiple
204 different sources (or different channels on the same source, for
205 multichannel sound cards), apply effects to them separately and then
206 mix them together. This includes both audio from the video cards
207 as well as ALSA inputs, including hotplug. Ola Gundelsby contributed
208 invaluable feedback on this feature throughout the entire
211 - Support for having MIDI controllers control various aspects of the
212 audio UI, with relatively flexible mapping. Note that different
213 MIDI controllers can vary significantly in what protocol they speak,
214 so Nageru will not necessarily work with all. (The primary testing
215 controller has been the Akai MIDImix, and a pre-made mapping for
216 that is included. The Korg nanoKONTROL2 has also been tested and
217 works, but it requires some Korg-specific SysEx commands to make
218 the buttons and lights work.)
220 - Add a disk space indicator to the main window.
222 - Various bugfixes. In particular, an issue where the audio would pitch
223 up sharply after a series of many dropped frames has been fixed.
226 Nageru 1.3.4, August 2nd, 2016
231 Nageru 1.3.3, July 27th, 2016
233 - Various changes to make distribution packaging easier; in particular,
234 theme data can be picked up from /usr/local/share/nageru.
236 - Fix various FFmpeg deprecation warnings, now that we need FFmpeg
237 3.1 for other reasons anyway.
240 Nageru 1.3.2, July 23rd, 2016
242 - Allow limited hotplugging (unplugging and replugging) of USB cards.
243 You can use the new command-line option --num-fake-cards (-C) to add
244 fake cards that show only a single color and that will be replaced
245 by real cards as you plug them in; you can also unplug cards and have
246 them be replaced by fake cards. Fake cards can also be used for testing
247 Nageru without actually having any video cards available.
249 - Add Metacube timestamping of every keyframe, for easier detection of
250 streams not keeping up. Works with the new timestamp feature of
251 Cubemap 1.3.1. Will be ignored (save for some logging) in older
254 - The included default theme has been reworked and cleaned up to be
255 more understandable and extensible.
257 - Add more command-line options for initial audio setup.
260 Nageru 1.3.1, July 1st, 2016
262 - Various display bugfixes.
265 Nageru 1.3.0, June 26th, 2016
267 - It is now possible, given enough CPU power (e.g., a quad-core Haswell or
268 faster desktop CPU), to output a stream that is suitable for streaming
269 directly to end users without further transcoding. In particular, this
270 includes support for encoding the network stream with x264 (the stream
271 saved to disk is still done using Quick Sync), for Metacube framing (for
272 streaming to the Cubemap reflector), and for choosing the network stream
273 mux. For more information, see the README.
275 - Add a flag (--disable-alsa-output) to disable ALSA monitoring output.
277 - Do texture uploads from the main thread instead of from separate threads;
278 may or may not improve stability with NVIDIA's proprietary drivers.
280 - When beginning a new video segment, the shutdown of the old encoder
281 is now done in a background thread, in order to not disturb the external
282 stream. The audio still goes into a somewhat random stream, though.
284 - You can now override the default stream-to-card mapping with --map-signal=
287 - Nageru now tries to lock itself into RAM if it has the permissions to do
288 so, for better realtime behavior. (Writing the stream to disk tends to
289 fill the buffer cache, eventually paging less-used parts of Nageru out.)
291 - Various fixes for deadlocks, memory leaks, and many other errors.
294 Nageru 1.2.1, April 15th, 2016
296 - Images are now updated from disk about every second, so that it is possible
297 to update e.g. overlays during streaming, although somewhat slowly.
299 - Fix support for PNG images.
301 - You can now send SIGHUP to start a new cut instead of using the menu.
303 - Added a --help option.
305 - Various tweaks to OpenGL fence handling.
308 Nageru 1.2.0, April 6th, 2016
310 - Support for Blackmagic's PCI and Thunderbolt cards, using the official
311 (closed-source) Blackmagic drivers. (You do not need the SDK installed, though.)
312 You can use PCI and USB cards pretty much interchangeably.
314 - Much more stable handling of frame queues on non-master cards. In particular,
315 you can have a master card on 50 Hz and another card on 60 Hz without getting
316 lots of warning messages and a 10+ frame latency on the second card.
318 - Many new options in the right click menu on cards: Adjustable video inputs,
319 adjustable audio inputs, adjustable resolutions, ability to select card for
322 - Add support for starting with almost all audio processing turned off
325 - The UI now marks inputs with red or green to mark them as participating in
326 the live or preview signal, respectively. Red takes priority. (Actually,
327 it merely asks the theme for a color for each input; the theme contains
330 - Add support for uncompressed video instead of H.264 on the HTTP server,
331 while still storing H.264 to files (--http-uncompressed-video). Note that
332 depending on your client, this might not actually be more CPU efficient
333 even on localhost, so be sure to check.
335 - Add a simpler, less featureful theme (simple.lua) that should be easier to
336 understand for beginners. Themes are now also choosable with -t on the command
339 - Too many bugfixes and small tweaks to list. In particular, many memory leaks
340 in the streaming part have been identified and fixed.
343 Nageru 1.1.0, February 24th, 2016
345 - Support doing the H.264 encoding on a different graphics device from the one
346 doing the mixing. In particular, this makes it possible to use Nageru on an
347 NVIDIA GPU while still encoding H.264 video using Intel Quick Sync (NVENC
348 is not supported yet) -- it is less efficient since the data needs to be read
349 back via the CPU, but the NVIDIA cards and drivers are so much faster that it
350 doesn't really matter. Tested on a GTX 950 with the proprietary drivers.
352 - In the included example theme, fix fading to/from deinterlaced sources.
354 - Various smaller compilation, distribution and documentation fixes.
357 Nageru 1.0.0, January 30th, 2016