1 Nageru and Futatabi 1.8.2, January 19th, 2019
3 - Futatabi now supports MIDI controllers like Nageru, including an editor
4 and a sample mapping for the Behringer CMD PL-1.
6 - Futatabi now supports changing master speed during play, both via a
7 MIDI controller and the GUI.
12 Nageru and Futatabi 1.8.1, December 30th, 2018
14 - Futatabi can now communicate its queue status through a subtitle track,
15 and Nageru can consume it. This allows Nageru themes to get precise
16 information programmatically, e.g. to show status or automatically
17 switch away when the queue is about to end.
19 - Futatabi can now reuse the computed flow across successive frames when
20 interpolating between the same frame pair. This significantly reduces
21 the GPU load when doing super-slow motion (slower than 0.5x).
23 - Various smaller fixes.
26 Nageru and Futatabi 1.8.0, December 20th, 2018
28 - Initial release of Futatabi, a multicamera slow motion video server
29 designed to be used with Nageru. Futatabi is currently in alpha stage
30 and largely undocumented.
32 - Add support for multi-camera export from Nageru. A multi-camera stream
33 contains all frames from all camera inputs (unless overridden by
34 --mjpeg-export-cards), unprocessed except for MJPEG encoding.
35 MJPEG encoding is done in hardware (via VA-API) on Skylake or newer,
36 or using libjpeg otherwise. The intended user of this stream is Futatabi.
39 Nageru 1.7.5, November 11th, 2018
41 - Fix a bug where --record-x264-video would not work when VA-API was
42 not present, making the option rather useless (broken in 1.7.2).
43 Bug reported by Peter De Schrijver.
45 - The build system has been switched to Meson; see the README for new
48 - Various smaller fixes.
51 Nageru 1.7.4, August 31st, 2018
53 - Rework the x264 speedcontrol presets, again. (They earlier assumed
54 we could control B-frame settings on the fly, which we cannot with
55 threaded lookahead.) Also support x264 >= 153, which can support
56 multiple bit depths in the same library.
58 - Default to SDI inputs instead of HDMI.
60 - Add a mode to run in full screen (--fullscreen). Adapted from a patch
63 - Add support for lift/gamma/gain in the theme. Patch by Alexandre Thomazo.
66 Nageru 1.7.3, May 22nd, 2018
68 - When using multichannel audio, add a control for adjusting the
69 stereo width (from normal stereo to mono, all the way to
72 - Removed --http-coarse-timebase (it is now always on).
77 Nageru 1.7.2, April 28th, 2018
79 - Several improvements to video (FFmpeg) inputs: You can now use
80 them as audio sources, you can right-click on video channels
81 to change URL/filename on-the-fly, themes can ask for forced
82 disconnection (useful for network sources that are hanging),
83 and various other improvements. Be aware that the audio support
84 may still be somewhat rough, as A/V sync of arbitrary video
85 playout is a hard problem.
87 - The included themes have been fixed to properly make the returned
88 chain preparation functions independent of global state (e.g. if
89 the white balance for a channel was changed before the frame was
90 actually rendered). If you are using a custom theme, you may want
91 to apply similar fixes to it.
93 - In Metacube stream output, mark each keyframe with a pts metadata
94 block. This allows Cubemap 1.4.0 or newer to serve fMP4 fragments
95 for HLS from Nageru's output, without any further remuxing or
98 - If needed, Nageru will now automatically try to autodetect a
99 usable --va-display parameter by probing all DRM nodes for H.264
100 encoders. This removes the need to set --va-display in almost all
101 cases, and also removes the dependency on libpci.
103 - For GPUs that support querying available memory (in practice only
104 NVIDIA GPUs at the current time), expose the amount of used/total
105 GPU memory both on standard output and in the Prometheus metrics
106 (as well as included Grafana dashboard).
108 - The Grafana dashboard now supports heatmaps for the chosen x264
109 speedcontrol preset (requires Grafana 5.1 or newer). (There used to
110 be a heatmap earlier, but it was all broken.)
115 Nageru 1.7.1, March 26th, 2018
117 - Various bugfixes, mostly related to HTML and video inputs.
120 Nageru 1.7.0, March 8th, 2018
122 - Support for HTML5 graphics directly in Nageru, through CEF
123 (Chromium Embedded Framework). This performs better and is more
124 flexible than integrating with CasparCG over a socket. Note that
125 CEF is an optional component; see the documentation for more
128 - Add an HTTP endpoint for enumerating channels and one for getting
129 only their colors. Intended for remote tally applications;
130 set the documentation.
132 - Add a video grid display that removes the audio controls and shows
133 the video channels only, potentially in multiple rows if that makes
134 for a larger viewing area.
136 - Themes can now present simple menus in the Nageru UI. See the
137 documentation for more information.
142 Nageru 1.6.4, January 25th, 2018
144 - Fix compilation with the upcoming FFmpeg 3.5.
146 - Switch to LuaJIT for the theme engine, which is faster.
148 - Various bugfixes and smaller optimizations.
151 Nageru 1.6.3, November 8th, 2017
153 - Add quick-cut keys (Q, W, E, etc.) below the preview keys.
154 Since it's easy to hit these by accident and put up a signal
155 you didn't want, they are disabled by default (they can be
156 enabled in the video menu, or with the command line flag
159 - Rework the x264 speedcontrol presets to better match newer
162 - Add an option for changing the HTTP port (--http-port).
164 - Various smaller bug and integration fixes.
167 Nageru 1.6.2, July 16th, 2017
169 - Various smaller Kaeru fixes, mostly around metrics. Also,
170 you can now adjust the x264 bitrate in Kaeru (in 100 kbit/sec
171 increments) by sending SIGUSR1 (higher) or SIGUSR2 (lower).
174 Nageru 1.6.1, July 9th, 2017
176 - Add native export of Prometheus metrics.
178 - Rework the frame queue drop algorithm. The new one should handle tricky
179 situations much better, especially when a card is drifting very slowly
180 against the master timer.
182 - Add Kaeru, an experimental transcoding tool based on Nageru code.
183 Kaeru can run headless on a server without a GPU to transcode a
184 Nageru stream into a lower-bitrate one, replacing VLC.
186 - Work around a bug in some versions of NVIDIA's OpenGL drivers that would
187 crash Nageru after about three hours (fix in cooperation with Movit).
189 - Fix a crash with i965-va-driver 1.8.x.
191 - Reduce mutex contention in certain critical places, causing lower tail
192 latency in the mixer.
195 Nageru 1.6.0, May 29th, 2017
197 - Add support for having videos (from file or from URL) as a separate
198 input channels, albeit with some limitations. Apart from the obvious use of
199 looping pause clips or similar, this can be used to integrate with CasparCG;
200 see the manual for more details.
202 - Add a frame analyzer (accessible from the Video menu) containing an
203 RGB histogram and a color dropped tool. This is useful in calibrating
204 video chains by playing back a known signal. Note that this adds a
205 dependency on QCustomPlot.
207 - Allow overriding Y'CbCr input interpretation, for inputs that don't
208 use the correct settings. Also, Rec. 601 is now used by default instead
209 of Rec. 709 for SD resolutions.
211 - Support other sample rates than 48000 Hz from bmusb.
214 Nageru 1.5.0, April 5th, 2017
216 - Support for low-latency HDMI/SDI output in addition to (or instead of) the
217 stream. This currently only works with DeckLink cards, not bmusb. See the
218 manual for more information.
220 - Support changing the resolution from the command line, instead of locking
221 everything to 1280x720.
223 - The A/V sync code has been rewritten to be more in line with Fons
224 Adriaensen's original paper. It handles several cases much better,
225 in particular when trying to match 59.94 and 60 Hz sources to each other.
226 However, it might occasionally need a few extra seconds on startup to
227 lock properly if startup is slow.
229 - Add support for using x264 for the disk recording. This makes it possible,
230 among other things, to run Nageru on a machine entirely without VA-API
233 - Support for 10-bit Y'CbCr, both on input and output. (Output requires
234 x264 disk recording, as Quick Sync Video does not support 10-bit H.264.)
235 This requires compute shader support, and is in general a little bit
236 slower on input and output, due to the extra amount of data being shuffled
237 around. Intermediate precision is 16-bit floating-point or better,
240 - Enable input mode autodetection for DeckLink cards that support it.
241 (bmusb mode has always been autodetected.)
243 - Add functionality to add a time code to the stream; useful for debugging
246 - The live display is now both more performant and of higher image quality.
248 - Fix a long-standing issue where the preview displays would be too bright
249 when using an NVIDIA GPU. (This did not affect the finished stream.)
251 - Many other bugfixes and small improvements.
254 Nageru 1.4.2, November 24th, 2016
256 - Fix a thread race that would sometimes cause x264 streaming to go awry.
259 Nageru 1.4.1, November 6th, 2016
264 Nageru 1.4.0, October 26th, 2016
266 - Support for multichannel (or more accurately, multi-bus) audio,
267 choosable from the UI or using the --multichannel command-line
268 flag. In multichannel mode, you can take in inputs from multiple
269 different sources (or different channels on the same source, for
270 multichannel sound cards), apply effects to them separately and then
271 mix them together. This includes both audio from the video cards
272 as well as ALSA inputs, including hotplug. Ola Gundelsby contributed
273 invaluable feedback on this feature throughout the entire
276 - Support for having MIDI controllers control various aspects of the
277 audio UI, with relatively flexible mapping. Note that different
278 MIDI controllers can vary significantly in what protocol they speak,
279 so Nageru will not necessarily work with all. (The primary testing
280 controller has been the Akai MIDImix, and a pre-made mapping for
281 that is included. The Korg nanoKONTROL2 has also been tested and
282 works, but it requires some Korg-specific SysEx commands to make
283 the buttons and lights work.)
285 - Add a disk space indicator to the main window.
287 - Various bugfixes. In particular, an issue where the audio would pitch
288 up sharply after a series of many dropped frames has been fixed.
291 Nageru 1.3.4, August 2nd, 2016
296 Nageru 1.3.3, July 27th, 2016
298 - Various changes to make distribution packaging easier; in particular,
299 theme data can be picked up from /usr/local/share/nageru.
301 - Fix various FFmpeg deprecation warnings, now that we need FFmpeg
302 3.1 for other reasons anyway.
305 Nageru 1.3.2, July 23rd, 2016
307 - Allow limited hotplugging (unplugging and replugging) of USB cards.
308 You can use the new command-line option --num-fake-cards (-C) to add
309 fake cards that show only a single color and that will be replaced
310 by real cards as you plug them in; you can also unplug cards and have
311 them be replaced by fake cards. Fake cards can also be used for testing
312 Nageru without actually having any video cards available.
314 - Add Metacube timestamping of every keyframe, for easier detection of
315 streams not keeping up. Works with the new timestamp feature of
316 Cubemap 1.3.1. Will be ignored (save for some logging) in older
319 - The included default theme has been reworked and cleaned up to be
320 more understandable and extensible.
322 - Add more command-line options for initial audio setup.
325 Nageru 1.3.1, July 1st, 2016
327 - Various display bugfixes.
330 Nageru 1.3.0, June 26th, 2016
332 - It is now possible, given enough CPU power (e.g., a quad-core Haswell or
333 faster desktop CPU), to output a stream that is suitable for streaming
334 directly to end users without further transcoding. In particular, this
335 includes support for encoding the network stream with x264 (the stream
336 saved to disk is still done using Quick Sync), for Metacube framing (for
337 streaming to the Cubemap reflector), and for choosing the network stream
338 mux. For more information, see the README.
340 - Add a flag (--disable-alsa-output) to disable ALSA monitoring output.
342 - Do texture uploads from the main thread instead of from separate threads;
343 may or may not improve stability with NVIDIA's proprietary drivers.
345 - When beginning a new video segment, the shutdown of the old encoder
346 is now done in a background thread, in order to not disturb the external
347 stream. The audio still goes into a somewhat random stream, though.
349 - You can now override the default stream-to-card mapping with --map-signal=
352 - Nageru now tries to lock itself into RAM if it has the permissions to do
353 so, for better realtime behavior. (Writing the stream to disk tends to
354 fill the buffer cache, eventually paging less-used parts of Nageru out.)
356 - Various fixes for deadlocks, memory leaks, and many other errors.
359 Nageru 1.2.1, April 15th, 2016
361 - Images are now updated from disk about every second, so that it is possible
362 to update e.g. overlays during streaming, although somewhat slowly.
364 - Fix support for PNG images.
366 - You can now send SIGHUP to start a new cut instead of using the menu.
368 - Added a --help option.
370 - Various tweaks to OpenGL fence handling.
373 Nageru 1.2.0, April 6th, 2016
375 - Support for Blackmagic's PCI and Thunderbolt cards, using the official
376 (closed-source) Blackmagic drivers. (You do not need the SDK installed, though.)
377 You can use PCI and USB cards pretty much interchangeably.
379 - Much more stable handling of frame queues on non-master cards. In particular,
380 you can have a master card on 50 Hz and another card on 60 Hz without getting
381 lots of warning messages and a 10+ frame latency on the second card.
383 - Many new options in the right click menu on cards: Adjustable video inputs,
384 adjustable audio inputs, adjustable resolutions, ability to select card for
387 - Add support for starting with almost all audio processing turned off
390 - The UI now marks inputs with red or green to mark them as participating in
391 the live or preview signal, respectively. Red takes priority. (Actually,
392 it merely asks the theme for a color for each input; the theme contains
395 - Add support for uncompressed video instead of H.264 on the HTTP server,
396 while still storing H.264 to files (--http-uncompressed-video). Note that
397 depending on your client, this might not actually be more CPU efficient
398 even on localhost, so be sure to check.
400 - Add a simpler, less featureful theme (simple.lua) that should be easier to
401 understand for beginners. Themes are now also choosable with -t on the command
404 - Too many bugfixes and small tweaks to list. In particular, many memory leaks
405 in the streaming part have been identified and fixed.
408 Nageru 1.1.0, February 24th, 2016
410 - Support doing the H.264 encoding on a different graphics device from the one
411 doing the mixing. In particular, this makes it possible to use Nageru on an
412 NVIDIA GPU while still encoding H.264 video using Intel Quick Sync (NVENC
413 is not supported yet) -- it is less efficient since the data needs to be read
414 back via the CPU, but the NVIDIA cards and drivers are so much faster that it
415 doesn't really matter. Tested on a GTX 950 with the proprietary drivers.
417 - In the included example theme, fix fading to/from deinterlaced sources.
419 - Various smaller compilation, distribution and documentation fixes.
422 Nageru 1.0.0, January 30th, 2016