1 Nageru and Futatabi 1.8.1, December 30th, 2018
3 - Futatabi can now communicate its queue status through a subtitle track,
4 and Nageru can consume it. This allows Nageru themes to get precise
5 information programmatically, e.g. to show status or automatically
6 switch away when the queue is about to end.
8 - Futatabi can now reuse the computed flow across successive frames when
9 interpolating between the same frame pair. This significantly reduces
10 the GPU load when doing super-slow motion (slower than 0.5x).
12 - Various smaller fixes.
15 Nageru and Futatabi 1.8.0, December 20th, 2018
17 - Initial release of Futatabi, a multicamera slow motion video server
18 designed to be used with Nageru. Futatabi is currently in alpha stage
19 and largely undocumented.
21 - Add support for multi-camera export from Nageru. A multi-camera stream
22 contains all frames from all camera inputs (unless overridden by
23 --mjpeg-export-cards), unprocessed except for MJPEG encoding.
24 MJPEG encoding is done in hardware (via VA-API) on Skylake or newer,
25 or using libjpeg otherwise. The intended user of this stream is Futatabi.
28 Nageru 1.7.5, November 11th, 2018
30 - Fix a bug where --record-x264-video would not work when VA-API was
31 not present, making the option rather useless (broken in 1.7.2).
32 Bug reported by Peter De Schrijver.
34 - The build system has been switched to Meson; see the README for new
37 - Various smaller fixes.
40 Nageru 1.7.4, August 31st, 2018
42 - Rework the x264 speedcontrol presets, again. (They earlier assumed
43 we could control B-frame settings on the fly, which we cannot with
44 threaded lookahead.) Also support x264 >= 153, which can support
45 multiple bit depths in the same library.
47 - Default to SDI inputs instead of HDMI.
49 - Add a mode to run in full screen (--fullscreen). Adapted from a patch
52 - Add support for lift/gamma/gain in the theme. Patch by Alexandre Thomazo.
55 Nageru 1.7.3, May 22nd, 2018
57 - When using multichannel audio, add a control for adjusting the
58 stereo width (from normal stereo to mono, all the way to
61 - Removed --http-coarse-timebase (it is now always on).
66 Nageru 1.7.2, April 28th, 2018
68 - Several improvements to video (FFmpeg) inputs: You can now use
69 them as audio sources, you can right-click on video channels
70 to change URL/filename on-the-fly, themes can ask for forced
71 disconnection (useful for network sources that are hanging),
72 and various other improvements. Be aware that the audio support
73 may still be somewhat rough, as A/V sync of arbitrary video
74 playout is a hard problem.
76 - The included themes have been fixed to properly make the returned
77 chain preparation functions independent of global state (e.g. if
78 the white balance for a channel was changed before the frame was
79 actually rendered). If you are using a custom theme, you may want
80 to apply similar fixes to it.
82 - In Metacube stream output, mark each keyframe with a pts metadata
83 block. This allows Cubemap 1.4.0 or newer to serve fMP4 fragments
84 for HLS from Nageru's output, without any further remuxing or
87 - If needed, Nageru will now automatically try to autodetect a
88 usable --va-display parameter by probing all DRM nodes for H.264
89 encoders. This removes the need to set --va-display in almost all
90 cases, and also removes the dependency on libpci.
92 - For GPUs that support querying available memory (in practice only
93 NVIDIA GPUs at the current time), expose the amount of used/total
94 GPU memory both on standard output and in the Prometheus metrics
95 (as well as included Grafana dashboard).
97 - The Grafana dashboard now supports heatmaps for the chosen x264
98 speedcontrol preset (requires Grafana 5.1 or newer). (There used to
99 be a heatmap earlier, but it was all broken.)
104 Nageru 1.7.1, March 26th, 2018
106 - Various bugfixes, mostly related to HTML and video inputs.
109 Nageru 1.7.0, March 8th, 2018
111 - Support for HTML5 graphics directly in Nageru, through CEF
112 (Chromium Embedded Framework). This performs better and is more
113 flexible than integrating with CasparCG over a socket. Note that
114 CEF is an optional component; see the documentation for more
117 - Add an HTTP endpoint for enumerating channels and one for getting
118 only their colors. Intended for remote tally applications;
119 set the documentation.
121 - Add a video grid display that removes the audio controls and shows
122 the video channels only, potentially in multiple rows if that makes
123 for a larger viewing area.
125 - Themes can now present simple menus in the Nageru UI. See the
126 documentation for more information.
131 Nageru 1.6.4, January 25th, 2018
133 - Fix compilation with the upcoming FFmpeg 3.5.
135 - Switch to LuaJIT for the theme engine, which is faster.
137 - Various bugfixes and smaller optimizations.
140 Nageru 1.6.3, November 8th, 2017
142 - Add quick-cut keys (Q, W, E, etc.) below the preview keys.
143 Since it's easy to hit these by accident and put up a signal
144 you didn't want, they are disabled by default (they can be
145 enabled in the video menu, or with the command line flag
148 - Rework the x264 speedcontrol presets to better match newer
151 - Add an option for changing the HTTP port (--http-port).
153 - Various smaller bug and integration fixes.
156 Nageru 1.6.2, July 16th, 2017
158 - Various smaller Kaeru fixes, mostly around metrics. Also,
159 you can now adjust the x264 bitrate in Kaeru (in 100 kbit/sec
160 increments) by sending SIGUSR1 (higher) or SIGUSR2 (lower).
163 Nageru 1.6.1, July 9th, 2017
165 - Add native export of Prometheus metrics.
167 - Rework the frame queue drop algorithm. The new one should handle tricky
168 situations much better, especially when a card is drifting very slowly
169 against the master timer.
171 - Add Kaeru, an experimental transcoding tool based on Nageru code.
172 Kaeru can run headless on a server without a GPU to transcode a
173 Nageru stream into a lower-bitrate one, replacing VLC.
175 - Work around a bug in some versions of NVIDIA's OpenGL drivers that would
176 crash Nageru after about three hours (fix in cooperation with Movit).
178 - Fix a crash with i965-va-driver 1.8.x.
180 - Reduce mutex contention in certain critical places, causing lower tail
181 latency in the mixer.
184 Nageru 1.6.0, May 29th, 2017
186 - Add support for having videos (from file or from URL) as a separate
187 input channels, albeit with some limitations. Apart from the obvious use of
188 looping pause clips or similar, this can be used to integrate with CasparCG;
189 see the manual for more details.
191 - Add a frame analyzer (accessible from the Video menu) containing an
192 RGB histogram and a color dropped tool. This is useful in calibrating
193 video chains by playing back a known signal. Note that this adds a
194 dependency on QCustomPlot.
196 - Allow overriding Y'CbCr input interpretation, for inputs that don't
197 use the correct settings. Also, Rec. 601 is now used by default instead
198 of Rec. 709 for SD resolutions.
200 - Support other sample rates than 48000 Hz from bmusb.
203 Nageru 1.5.0, April 5th, 2017
205 - Support for low-latency HDMI/SDI output in addition to (or instead of) the
206 stream. This currently only works with DeckLink cards, not bmusb. See the
207 manual for more information.
209 - Support changing the resolution from the command line, instead of locking
210 everything to 1280x720.
212 - The A/V sync code has been rewritten to be more in line with Fons
213 Adriaensen's original paper. It handles several cases much better,
214 in particular when trying to match 59.94 and 60 Hz sources to each other.
215 However, it might occasionally need a few extra seconds on startup to
216 lock properly if startup is slow.
218 - Add support for using x264 for the disk recording. This makes it possible,
219 among other things, to run Nageru on a machine entirely without VA-API
222 - Support for 10-bit Y'CbCr, both on input and output. (Output requires
223 x264 disk recording, as Quick Sync Video does not support 10-bit H.264.)
224 This requires compute shader support, and is in general a little bit
225 slower on input and output, due to the extra amount of data being shuffled
226 around. Intermediate precision is 16-bit floating-point or better,
229 - Enable input mode autodetection for DeckLink cards that support it.
230 (bmusb mode has always been autodetected.)
232 - Add functionality to add a time code to the stream; useful for debugging
235 - The live display is now both more performant and of higher image quality.
237 - Fix a long-standing issue where the preview displays would be too bright
238 when using an NVIDIA GPU. (This did not affect the finished stream.)
240 - Many other bugfixes and small improvements.
243 Nageru 1.4.2, November 24th, 2016
245 - Fix a thread race that would sometimes cause x264 streaming to go awry.
248 Nageru 1.4.1, November 6th, 2016
253 Nageru 1.4.0, October 26th, 2016
255 - Support for multichannel (or more accurately, multi-bus) audio,
256 choosable from the UI or using the --multichannel command-line
257 flag. In multichannel mode, you can take in inputs from multiple
258 different sources (or different channels on the same source, for
259 multichannel sound cards), apply effects to them separately and then
260 mix them together. This includes both audio from the video cards
261 as well as ALSA inputs, including hotplug. Ola Gundelsby contributed
262 invaluable feedback on this feature throughout the entire
265 - Support for having MIDI controllers control various aspects of the
266 audio UI, with relatively flexible mapping. Note that different
267 MIDI controllers can vary significantly in what protocol they speak,
268 so Nageru will not necessarily work with all. (The primary testing
269 controller has been the Akai MIDImix, and a pre-made mapping for
270 that is included. The Korg nanoKONTROL2 has also been tested and
271 works, but it requires some Korg-specific SysEx commands to make
272 the buttons and lights work.)
274 - Add a disk space indicator to the main window.
276 - Various bugfixes. In particular, an issue where the audio would pitch
277 up sharply after a series of many dropped frames has been fixed.
280 Nageru 1.3.4, August 2nd, 2016
285 Nageru 1.3.3, July 27th, 2016
287 - Various changes to make distribution packaging easier; in particular,
288 theme data can be picked up from /usr/local/share/nageru.
290 - Fix various FFmpeg deprecation warnings, now that we need FFmpeg
291 3.1 for other reasons anyway.
294 Nageru 1.3.2, July 23rd, 2016
296 - Allow limited hotplugging (unplugging and replugging) of USB cards.
297 You can use the new command-line option --num-fake-cards (-C) to add
298 fake cards that show only a single color and that will be replaced
299 by real cards as you plug them in; you can also unplug cards and have
300 them be replaced by fake cards. Fake cards can also be used for testing
301 Nageru without actually having any video cards available.
303 - Add Metacube timestamping of every keyframe, for easier detection of
304 streams not keeping up. Works with the new timestamp feature of
305 Cubemap 1.3.1. Will be ignored (save for some logging) in older
308 - The included default theme has been reworked and cleaned up to be
309 more understandable and extensible.
311 - Add more command-line options for initial audio setup.
314 Nageru 1.3.1, July 1st, 2016
316 - Various display bugfixes.
319 Nageru 1.3.0, June 26th, 2016
321 - It is now possible, given enough CPU power (e.g., a quad-core Haswell or
322 faster desktop CPU), to output a stream that is suitable for streaming
323 directly to end users without further transcoding. In particular, this
324 includes support for encoding the network stream with x264 (the stream
325 saved to disk is still done using Quick Sync), for Metacube framing (for
326 streaming to the Cubemap reflector), and for choosing the network stream
327 mux. For more information, see the README.
329 - Add a flag (--disable-alsa-output) to disable ALSA monitoring output.
331 - Do texture uploads from the main thread instead of from separate threads;
332 may or may not improve stability with NVIDIA's proprietary drivers.
334 - When beginning a new video segment, the shutdown of the old encoder
335 is now done in a background thread, in order to not disturb the external
336 stream. The audio still goes into a somewhat random stream, though.
338 - You can now override the default stream-to-card mapping with --map-signal=
341 - Nageru now tries to lock itself into RAM if it has the permissions to do
342 so, for better realtime behavior. (Writing the stream to disk tends to
343 fill the buffer cache, eventually paging less-used parts of Nageru out.)
345 - Various fixes for deadlocks, memory leaks, and many other errors.
348 Nageru 1.2.1, April 15th, 2016
350 - Images are now updated from disk about every second, so that it is possible
351 to update e.g. overlays during streaming, although somewhat slowly.
353 - Fix support for PNG images.
355 - You can now send SIGHUP to start a new cut instead of using the menu.
357 - Added a --help option.
359 - Various tweaks to OpenGL fence handling.
362 Nageru 1.2.0, April 6th, 2016
364 - Support for Blackmagic's PCI and Thunderbolt cards, using the official
365 (closed-source) Blackmagic drivers. (You do not need the SDK installed, though.)
366 You can use PCI and USB cards pretty much interchangeably.
368 - Much more stable handling of frame queues on non-master cards. In particular,
369 you can have a master card on 50 Hz and another card on 60 Hz without getting
370 lots of warning messages and a 10+ frame latency on the second card.
372 - Many new options in the right click menu on cards: Adjustable video inputs,
373 adjustable audio inputs, adjustable resolutions, ability to select card for
376 - Add support for starting with almost all audio processing turned off
379 - The UI now marks inputs with red or green to mark them as participating in
380 the live or preview signal, respectively. Red takes priority. (Actually,
381 it merely asks the theme for a color for each input; the theme contains
384 - Add support for uncompressed video instead of H.264 on the HTTP server,
385 while still storing H.264 to files (--http-uncompressed-video). Note that
386 depending on your client, this might not actually be more CPU efficient
387 even on localhost, so be sure to check.
389 - Add a simpler, less featureful theme (simple.lua) that should be easier to
390 understand for beginners. Themes are now also choosable with -t on the command
393 - Too many bugfixes and small tweaks to list. In particular, many memory leaks
394 in the streaming part have been identified and fixed.
397 Nageru 1.1.0, February 24th, 2016
399 - Support doing the H.264 encoding on a different graphics device from the one
400 doing the mixing. In particular, this makes it possible to use Nageru on an
401 NVIDIA GPU while still encoding H.264 video using Intel Quick Sync (NVENC
402 is not supported yet) -- it is less efficient since the data needs to be read
403 back via the CPU, but the NVIDIA cards and drivers are so much faster that it
404 doesn't really matter. Tested on a GTX 950 with the proprietary drivers.
406 - In the included example theme, fix fading to/from deinterlaced sources.
408 - Various smaller compilation, distribution and documentation fixes.
411 Nageru 1.0.0, January 30th, 2016