1 Nageru and Futatabi 1.8.0, December 20th, 2018
3 - Initial release of Futatabi, a multicamera slow motion video server
4 designed to be used with Nageru. Futatabi is currently in alpha stage
5 and largely undocumented.
7 - Add support for multi-camera export from Nageru. A multi-camera stream
8 contains all frames from all camera inputs (unless overridden by
9 --mjpeg-export-cards), unprocessed except for MJPEG encoding.
10 MJPEG encoding is done in hardware (via VA-API) on Skylake or newer,
11 or using libjpeg otherwise. The intended user of this stream is Futatabi.
14 Nageru 1.7.5, November 11th, 2018
16 - Fix a bug where --record-x264-video would not work when VA-API was
17 not present, making the option rather useless (broken in 1.7.2).
18 Bug reported by Peter De Schrijver.
20 - The build system has been switched to Meson; see the README for new
23 - Various smaller fixes.
26 Nageru 1.7.4, August 31st, 2018
28 - Rework the x264 speedcontrol presets, again. (They earlier assumed
29 we could control B-frame settings on the fly, which we cannot with
30 threaded lookahead.) Also support x264 >= 153, which can support
31 multiple bit depths in the same library.
33 - Default to SDI inputs instead of HDMI.
35 - Add a mode to run in full screen (--fullscreen). Adapted from a patch
38 - Add support for lift/gamma/gain in the theme. Patch by Alexandre Thomazo.
41 Nageru 1.7.3, May 22nd, 2018
43 - When using multichannel audio, add a control for adjusting the
44 stereo width (from normal stereo to mono, all the way to
47 - Removed --http-coarse-timebase (it is now always on).
52 Nageru 1.7.2, April 28th, 2018
54 - Several improvements to video (FFmpeg) inputs: You can now use
55 them as audio sources, you can right-click on video channels
56 to change URL/filename on-the-fly, themes can ask for forced
57 disconnection (useful for network sources that are hanging),
58 and various other improvements. Be aware that the audio support
59 may still be somewhat rough, as A/V sync of arbitrary video
60 playout is a hard problem.
62 - The included themes have been fixed to properly make the returned
63 chain preparation functions independent of global state (e.g. if
64 the white balance for a channel was changed before the frame was
65 actually rendered). If you are using a custom theme, you may want
66 to apply similar fixes to it.
68 - In Metacube stream output, mark each keyframe with a pts metadata
69 block. This allows Cubemap 1.4.0 or newer to serve fMP4 fragments
70 for HLS from Nageru's output, without any further remuxing or
73 - If needed, Nageru will now automatically try to autodetect a
74 usable --va-display parameter by probing all DRM nodes for H.264
75 encoders. This removes the need to set --va-display in almost all
76 cases, and also removes the dependency on libpci.
78 - For GPUs that support querying available memory (in practice only
79 NVIDIA GPUs at the current time), expose the amount of used/total
80 GPU memory both on standard output and in the Prometheus metrics
81 (as well as included Grafana dashboard).
83 - The Grafana dashboard now supports heatmaps for the chosen x264
84 speedcontrol preset (requires Grafana 5.1 or newer). (There used to
85 be a heatmap earlier, but it was all broken.)
90 Nageru 1.7.1, March 26th, 2018
92 - Various bugfixes, mostly related to HTML and video inputs.
95 Nageru 1.7.0, March 8th, 2018
97 - Support for HTML5 graphics directly in Nageru, through CEF
98 (Chromium Embedded Framework). This performs better and is more
99 flexible than integrating with CasparCG over a socket. Note that
100 CEF is an optional component; see the documentation for more
103 - Add an HTTP endpoint for enumerating channels and one for getting
104 only their colors. Intended for remote tally applications;
105 set the documentation.
107 - Add a video grid display that removes the audio controls and shows
108 the video channels only, potentially in multiple rows if that makes
109 for a larger viewing area.
111 - Themes can now present simple menus in the Nageru UI. See the
112 documentation for more information.
117 Nageru 1.6.4, January 25th, 2018
119 - Fix compilation with the upcoming FFmpeg 3.5.
121 - Switch to LuaJIT for the theme engine, which is faster.
123 - Various bugfixes and smaller optimizations.
126 Nageru 1.6.3, November 8th, 2017
128 - Add quick-cut keys (Q, W, E, etc.) below the preview keys.
129 Since it's easy to hit these by accident and put up a signal
130 you didn't want, they are disabled by default (they can be
131 enabled in the video menu, or with the command line flag
134 - Rework the x264 speedcontrol presets to better match newer
137 - Add an option for changing the HTTP port (--http-port).
139 - Various smaller bug and integration fixes.
142 Nageru 1.6.2, July 16th, 2017
144 - Various smaller Kaeru fixes, mostly around metrics. Also,
145 you can now adjust the x264 bitrate in Kaeru (in 100 kbit/sec
146 increments) by sending SIGUSR1 (higher) or SIGUSR2 (lower).
149 Nageru 1.6.1, July 9th, 2017
151 - Add native export of Prometheus metrics.
153 - Rework the frame queue drop algorithm. The new one should handle tricky
154 situations much better, especially when a card is drifting very slowly
155 against the master timer.
157 - Add Kaeru, an experimental transcoding tool based on Nageru code.
158 Kaeru can run headless on a server without a GPU to transcode a
159 Nageru stream into a lower-bitrate one, replacing VLC.
161 - Work around a bug in some versions of NVIDIA's OpenGL drivers that would
162 crash Nageru after about three hours (fix in cooperation with Movit).
164 - Fix a crash with i965-va-driver 1.8.x.
166 - Reduce mutex contention in certain critical places, causing lower tail
167 latency in the mixer.
170 Nageru 1.6.0, May 29th, 2017
172 - Add support for having videos (from file or from URL) as a separate
173 input channels, albeit with some limitations. Apart from the obvious use of
174 looping pause clips or similar, this can be used to integrate with CasparCG;
175 see the manual for more details.
177 - Add a frame analyzer (accessible from the Video menu) containing an
178 RGB histogram and a color dropped tool. This is useful in calibrating
179 video chains by playing back a known signal. Note that this adds a
180 dependency on QCustomPlot.
182 - Allow overriding Y'CbCr input interpretation, for inputs that don't
183 use the correct settings. Also, Rec. 601 is now used by default instead
184 of Rec. 709 for SD resolutions.
186 - Support other sample rates than 48000 Hz from bmusb.
189 Nageru 1.5.0, April 5th, 2017
191 - Support for low-latency HDMI/SDI output in addition to (or instead of) the
192 stream. This currently only works with DeckLink cards, not bmusb. See the
193 manual for more information.
195 - Support changing the resolution from the command line, instead of locking
196 everything to 1280x720.
198 - The A/V sync code has been rewritten to be more in line with Fons
199 Adriaensen's original paper. It handles several cases much better,
200 in particular when trying to match 59.94 and 60 Hz sources to each other.
201 However, it might occasionally need a few extra seconds on startup to
202 lock properly if startup is slow.
204 - Add support for using x264 for the disk recording. This makes it possible,
205 among other things, to run Nageru on a machine entirely without VA-API
208 - Support for 10-bit Y'CbCr, both on input and output. (Output requires
209 x264 disk recording, as Quick Sync Video does not support 10-bit H.264.)
210 This requires compute shader support, and is in general a little bit
211 slower on input and output, due to the extra amount of data being shuffled
212 around. Intermediate precision is 16-bit floating-point or better,
215 - Enable input mode autodetection for DeckLink cards that support it.
216 (bmusb mode has always been autodetected.)
218 - Add functionality to add a time code to the stream; useful for debugging
221 - The live display is now both more performant and of higher image quality.
223 - Fix a long-standing issue where the preview displays would be too bright
224 when using an NVIDIA GPU. (This did not affect the finished stream.)
226 - Many other bugfixes and small improvements.
229 Nageru 1.4.2, November 24th, 2016
231 - Fix a thread race that would sometimes cause x264 streaming to go awry.
234 Nageru 1.4.1, November 6th, 2016
239 Nageru 1.4.0, October 26th, 2016
241 - Support for multichannel (or more accurately, multi-bus) audio,
242 choosable from the UI or using the --multichannel command-line
243 flag. In multichannel mode, you can take in inputs from multiple
244 different sources (or different channels on the same source, for
245 multichannel sound cards), apply effects to them separately and then
246 mix them together. This includes both audio from the video cards
247 as well as ALSA inputs, including hotplug. Ola Gundelsby contributed
248 invaluable feedback on this feature throughout the entire
251 - Support for having MIDI controllers control various aspects of the
252 audio UI, with relatively flexible mapping. Note that different
253 MIDI controllers can vary significantly in what protocol they speak,
254 so Nageru will not necessarily work with all. (The primary testing
255 controller has been the Akai MIDImix, and a pre-made mapping for
256 that is included. The Korg nanoKONTROL2 has also been tested and
257 works, but it requires some Korg-specific SysEx commands to make
258 the buttons and lights work.)
260 - Add a disk space indicator to the main window.
262 - Various bugfixes. In particular, an issue where the audio would pitch
263 up sharply after a series of many dropped frames has been fixed.
266 Nageru 1.3.4, August 2nd, 2016
271 Nageru 1.3.3, July 27th, 2016
273 - Various changes to make distribution packaging easier; in particular,
274 theme data can be picked up from /usr/local/share/nageru.
276 - Fix various FFmpeg deprecation warnings, now that we need FFmpeg
277 3.1 for other reasons anyway.
280 Nageru 1.3.2, July 23rd, 2016
282 - Allow limited hotplugging (unplugging and replugging) of USB cards.
283 You can use the new command-line option --num-fake-cards (-C) to add
284 fake cards that show only a single color and that will be replaced
285 by real cards as you plug them in; you can also unplug cards and have
286 them be replaced by fake cards. Fake cards can also be used for testing
287 Nageru without actually having any video cards available.
289 - Add Metacube timestamping of every keyframe, for easier detection of
290 streams not keeping up. Works with the new timestamp feature of
291 Cubemap 1.3.1. Will be ignored (save for some logging) in older
294 - The included default theme has been reworked and cleaned up to be
295 more understandable and extensible.
297 - Add more command-line options for initial audio setup.
300 Nageru 1.3.1, July 1st, 2016
302 - Various display bugfixes.
305 Nageru 1.3.0, June 26th, 2016
307 - It is now possible, given enough CPU power (e.g., a quad-core Haswell or
308 faster desktop CPU), to output a stream that is suitable for streaming
309 directly to end users without further transcoding. In particular, this
310 includes support for encoding the network stream with x264 (the stream
311 saved to disk is still done using Quick Sync), for Metacube framing (for
312 streaming to the Cubemap reflector), and for choosing the network stream
313 mux. For more information, see the README.
315 - Add a flag (--disable-alsa-output) to disable ALSA monitoring output.
317 - Do texture uploads from the main thread instead of from separate threads;
318 may or may not improve stability with NVIDIA's proprietary drivers.
320 - When beginning a new video segment, the shutdown of the old encoder
321 is now done in a background thread, in order to not disturb the external
322 stream. The audio still goes into a somewhat random stream, though.
324 - You can now override the default stream-to-card mapping with --map-signal=
327 - Nageru now tries to lock itself into RAM if it has the permissions to do
328 so, for better realtime behavior. (Writing the stream to disk tends to
329 fill the buffer cache, eventually paging less-used parts of Nageru out.)
331 - Various fixes for deadlocks, memory leaks, and many other errors.
334 Nageru 1.2.1, April 15th, 2016
336 - Images are now updated from disk about every second, so that it is possible
337 to update e.g. overlays during streaming, although somewhat slowly.
339 - Fix support for PNG images.
341 - You can now send SIGHUP to start a new cut instead of using the menu.
343 - Added a --help option.
345 - Various tweaks to OpenGL fence handling.
348 Nageru 1.2.0, April 6th, 2016
350 - Support for Blackmagic's PCI and Thunderbolt cards, using the official
351 (closed-source) Blackmagic drivers. (You do not need the SDK installed, though.)
352 You can use PCI and USB cards pretty much interchangeably.
354 - Much more stable handling of frame queues on non-master cards. In particular,
355 you can have a master card on 50 Hz and another card on 60 Hz without getting
356 lots of warning messages and a 10+ frame latency on the second card.
358 - Many new options in the right click menu on cards: Adjustable video inputs,
359 adjustable audio inputs, adjustable resolutions, ability to select card for
362 - Add support for starting with almost all audio processing turned off
365 - The UI now marks inputs with red or green to mark them as participating in
366 the live or preview signal, respectively. Red takes priority. (Actually,
367 it merely asks the theme for a color for each input; the theme contains
370 - Add support for uncompressed video instead of H.264 on the HTTP server,
371 while still storing H.264 to files (--http-uncompressed-video). Note that
372 depending on your client, this might not actually be more CPU efficient
373 even on localhost, so be sure to check.
375 - Add a simpler, less featureful theme (simple.lua) that should be easier to
376 understand for beginners. Themes are now also choosable with -t on the command
379 - Too many bugfixes and small tweaks to list. In particular, many memory leaks
380 in the streaming part have been identified and fixed.
383 Nageru 1.1.0, February 24th, 2016
385 - Support doing the H.264 encoding on a different graphics device from the one
386 doing the mixing. In particular, this makes it possible to use Nageru on an
387 NVIDIA GPU while still encoding H.264 video using Intel Quick Sync (NVENC
388 is not supported yet) -- it is less efficient since the data needs to be read
389 back via the CPU, but the NVIDIA cards and drivers are so much faster that it
390 doesn't really matter. Tested on a GTX 950 with the proprietary drivers.
392 - In the included example theme, fix fading to/from deinterlaced sources.
394 - Various smaller compilation, distribution and documentation fixes.
397 Nageru 1.0.0, January 30th, 2016