1 Nageru and Futatabi 1.8.4, March 11th, 2019
3 - Various bugfixes, in particular for 32-bit platforms.
6 Nageru and Futatabi 1.8.3, March 10th, 2019
8 - Allow controlling video mixing from MIDI events. Adapted from a patch
9 by Yann Dubreuil, from the BreizhCamp repository.
11 - Use ALSA hardware timestamps for input; gives more stable delay.
12 Patch by Yann Dubreuil, from the BreizhCamp repository.
14 - For FFmpeg inputs, add an option for playing as fast as possible
17 - In Futatabi, support queueing and playing clips with noe cue-out point.
18 This opens up for new and even faster UI workflows.
23 Nageru and Futatabi 1.8.2, January 19th, 2019
25 - Futatabi now supports MIDI controllers like Nageru, including an editor
26 and a sample mapping for the Behringer CMD PL-1.
28 - Futatabi now supports changing master speed during play, both via a
29 MIDI controller and the GUI.
34 Nageru and Futatabi 1.8.1, December 30th, 2018
36 - Futatabi can now communicate its queue status through a subtitle track,
37 and Nageru can consume it. This allows Nageru themes to get precise
38 information programmatically, e.g. to show status or automatically
39 switch away when the queue is about to end.
41 - Futatabi can now reuse the computed flow across successive frames when
42 interpolating between the same frame pair. This significantly reduces
43 the GPU load when doing super-slow motion (slower than 0.5x).
45 - Various smaller fixes.
48 Nageru and Futatabi 1.8.0, December 20th, 2018
50 - Initial release of Futatabi, a multicamera slow motion video server
51 designed to be used with Nageru. Futatabi is currently in alpha stage
52 and largely undocumented.
54 - Add support for multi-camera export from Nageru. A multi-camera stream
55 contains all frames from all camera inputs (unless overridden by
56 --mjpeg-export-cards), unprocessed except for MJPEG encoding.
57 MJPEG encoding is done in hardware (via VA-API) on Skylake or newer,
58 or using libjpeg otherwise. The intended user of this stream is Futatabi.
61 Nageru 1.7.5, November 11th, 2018
63 - Fix a bug where --record-x264-video would not work when VA-API was
64 not present, making the option rather useless (broken in 1.7.2).
65 Bug reported by Peter De Schrijver.
67 - The build system has been switched to Meson; see the README for new
70 - Various smaller fixes.
73 Nageru 1.7.4, August 31st, 2018
75 - Rework the x264 speedcontrol presets, again. (They earlier assumed
76 we could control B-frame settings on the fly, which we cannot with
77 threaded lookahead.) Also support x264 >= 153, which can support
78 multiple bit depths in the same library.
80 - Default to SDI inputs instead of HDMI.
82 - Add a mode to run in full screen (--fullscreen). Adapted from a patch
85 - Add support for lift/gamma/gain in the theme. Patch by Alexandre Thomazo.
88 Nageru 1.7.3, May 22nd, 2018
90 - When using multichannel audio, add a control for adjusting the
91 stereo width (from normal stereo to mono, all the way to
94 - Removed --http-coarse-timebase (it is now always on).
99 Nageru 1.7.2, April 28th, 2018
101 - Several improvements to video (FFmpeg) inputs: You can now use
102 them as audio sources, you can right-click on video channels
103 to change URL/filename on-the-fly, themes can ask for forced
104 disconnection (useful for network sources that are hanging),
105 and various other improvements. Be aware that the audio support
106 may still be somewhat rough, as A/V sync of arbitrary video
107 playout is a hard problem.
109 - The included themes have been fixed to properly make the returned
110 chain preparation functions independent of global state (e.g. if
111 the white balance for a channel was changed before the frame was
112 actually rendered). If you are using a custom theme, you may want
113 to apply similar fixes to it.
115 - In Metacube stream output, mark each keyframe with a pts metadata
116 block. This allows Cubemap 1.4.0 or newer to serve fMP4 fragments
117 for HLS from Nageru's output, without any further remuxing or
120 - If needed, Nageru will now automatically try to autodetect a
121 usable --va-display parameter by probing all DRM nodes for H.264
122 encoders. This removes the need to set --va-display in almost all
123 cases, and also removes the dependency on libpci.
125 - For GPUs that support querying available memory (in practice only
126 NVIDIA GPUs at the current time), expose the amount of used/total
127 GPU memory both on standard output and in the Prometheus metrics
128 (as well as included Grafana dashboard).
130 - The Grafana dashboard now supports heatmaps for the chosen x264
131 speedcontrol preset (requires Grafana 5.1 or newer). (There used to
132 be a heatmap earlier, but it was all broken.)
137 Nageru 1.7.1, March 26th, 2018
139 - Various bugfixes, mostly related to HTML and video inputs.
142 Nageru 1.7.0, March 8th, 2018
144 - Support for HTML5 graphics directly in Nageru, through CEF
145 (Chromium Embedded Framework). This performs better and is more
146 flexible than integrating with CasparCG over a socket. Note that
147 CEF is an optional component; see the documentation for more
150 - Add an HTTP endpoint for enumerating channels and one for getting
151 only their colors. Intended for remote tally applications;
152 set the documentation.
154 - Add a video grid display that removes the audio controls and shows
155 the video channels only, potentially in multiple rows if that makes
156 for a larger viewing area.
158 - Themes can now present simple menus in the Nageru UI. See the
159 documentation for more information.
164 Nageru 1.6.4, January 25th, 2018
166 - Fix compilation with the upcoming FFmpeg 3.5.
168 - Switch to LuaJIT for the theme engine, which is faster.
170 - Various bugfixes and smaller optimizations.
173 Nageru 1.6.3, November 8th, 2017
175 - Add quick-cut keys (Q, W, E, etc.) below the preview keys.
176 Since it's easy to hit these by accident and put up a signal
177 you didn't want, they are disabled by default (they can be
178 enabled in the video menu, or with the command line flag
181 - Rework the x264 speedcontrol presets to better match newer
184 - Add an option for changing the HTTP port (--http-port).
186 - Various smaller bug and integration fixes.
189 Nageru 1.6.2, July 16th, 2017
191 - Various smaller Kaeru fixes, mostly around metrics. Also,
192 you can now adjust the x264 bitrate in Kaeru (in 100 kbit/sec
193 increments) by sending SIGUSR1 (higher) or SIGUSR2 (lower).
196 Nageru 1.6.1, July 9th, 2017
198 - Add native export of Prometheus metrics.
200 - Rework the frame queue drop algorithm. The new one should handle tricky
201 situations much better, especially when a card is drifting very slowly
202 against the master timer.
204 - Add Kaeru, an experimental transcoding tool based on Nageru code.
205 Kaeru can run headless on a server without a GPU to transcode a
206 Nageru stream into a lower-bitrate one, replacing VLC.
208 - Work around a bug in some versions of NVIDIA's OpenGL drivers that would
209 crash Nageru after about three hours (fix in cooperation with Movit).
211 - Fix a crash with i965-va-driver 1.8.x.
213 - Reduce mutex contention in certain critical places, causing lower tail
214 latency in the mixer.
217 Nageru 1.6.0, May 29th, 2017
219 - Add support for having videos (from file or from URL) as a separate
220 input channels, albeit with some limitations. Apart from the obvious use of
221 looping pause clips or similar, this can be used to integrate with CasparCG;
222 see the manual for more details.
224 - Add a frame analyzer (accessible from the Video menu) containing an
225 RGB histogram and a color dropped tool. This is useful in calibrating
226 video chains by playing back a known signal. Note that this adds a
227 dependency on QCustomPlot.
229 - Allow overriding Y'CbCr input interpretation, for inputs that don't
230 use the correct settings. Also, Rec. 601 is now used by default instead
231 of Rec. 709 for SD resolutions.
233 - Support other sample rates than 48000 Hz from bmusb.
236 Nageru 1.5.0, April 5th, 2017
238 - Support for low-latency HDMI/SDI output in addition to (or instead of) the
239 stream. This currently only works with DeckLink cards, not bmusb. See the
240 manual for more information.
242 - Support changing the resolution from the command line, instead of locking
243 everything to 1280x720.
245 - The A/V sync code has been rewritten to be more in line with Fons
246 Adriaensen's original paper. It handles several cases much better,
247 in particular when trying to match 59.94 and 60 Hz sources to each other.
248 However, it might occasionally need a few extra seconds on startup to
249 lock properly if startup is slow.
251 - Add support for using x264 for the disk recording. This makes it possible,
252 among other things, to run Nageru on a machine entirely without VA-API
255 - Support for 10-bit Y'CbCr, both on input and output. (Output requires
256 x264 disk recording, as Quick Sync Video does not support 10-bit H.264.)
257 This requires compute shader support, and is in general a little bit
258 slower on input and output, due to the extra amount of data being shuffled
259 around. Intermediate precision is 16-bit floating-point or better,
262 - Enable input mode autodetection for DeckLink cards that support it.
263 (bmusb mode has always been autodetected.)
265 - Add functionality to add a time code to the stream; useful for debugging
268 - The live display is now both more performant and of higher image quality.
270 - Fix a long-standing issue where the preview displays would be too bright
271 when using an NVIDIA GPU. (This did not affect the finished stream.)
273 - Many other bugfixes and small improvements.
276 Nageru 1.4.2, November 24th, 2016
278 - Fix a thread race that would sometimes cause x264 streaming to go awry.
281 Nageru 1.4.1, November 6th, 2016
286 Nageru 1.4.0, October 26th, 2016
288 - Support for multichannel (or more accurately, multi-bus) audio,
289 choosable from the UI or using the --multichannel command-line
290 flag. In multichannel mode, you can take in inputs from multiple
291 different sources (or different channels on the same source, for
292 multichannel sound cards), apply effects to them separately and then
293 mix them together. This includes both audio from the video cards
294 as well as ALSA inputs, including hotplug. Ola Gundelsby contributed
295 invaluable feedback on this feature throughout the entire
298 - Support for having MIDI controllers control various aspects of the
299 audio UI, with relatively flexible mapping. Note that different
300 MIDI controllers can vary significantly in what protocol they speak,
301 so Nageru will not necessarily work with all. (The primary testing
302 controller has been the Akai MIDImix, and a pre-made mapping for
303 that is included. The Korg nanoKONTROL2 has also been tested and
304 works, but it requires some Korg-specific SysEx commands to make
305 the buttons and lights work.)
307 - Add a disk space indicator to the main window.
309 - Various bugfixes. In particular, an issue where the audio would pitch
310 up sharply after a series of many dropped frames has been fixed.
313 Nageru 1.3.4, August 2nd, 2016
318 Nageru 1.3.3, July 27th, 2016
320 - Various changes to make distribution packaging easier; in particular,
321 theme data can be picked up from /usr/local/share/nageru.
323 - Fix various FFmpeg deprecation warnings, now that we need FFmpeg
324 3.1 for other reasons anyway.
327 Nageru 1.3.2, July 23rd, 2016
329 - Allow limited hotplugging (unplugging and replugging) of USB cards.
330 You can use the new command-line option --num-fake-cards (-C) to add
331 fake cards that show only a single color and that will be replaced
332 by real cards as you plug them in; you can also unplug cards and have
333 them be replaced by fake cards. Fake cards can also be used for testing
334 Nageru without actually having any video cards available.
336 - Add Metacube timestamping of every keyframe, for easier detection of
337 streams not keeping up. Works with the new timestamp feature of
338 Cubemap 1.3.1. Will be ignored (save for some logging) in older
341 - The included default theme has been reworked and cleaned up to be
342 more understandable and extensible.
344 - Add more command-line options for initial audio setup.
347 Nageru 1.3.1, July 1st, 2016
349 - Various display bugfixes.
352 Nageru 1.3.0, June 26th, 2016
354 - It is now possible, given enough CPU power (e.g., a quad-core Haswell or
355 faster desktop CPU), to output a stream that is suitable for streaming
356 directly to end users without further transcoding. In particular, this
357 includes support for encoding the network stream with x264 (the stream
358 saved to disk is still done using Quick Sync), for Metacube framing (for
359 streaming to the Cubemap reflector), and for choosing the network stream
360 mux. For more information, see the README.
362 - Add a flag (--disable-alsa-output) to disable ALSA monitoring output.
364 - Do texture uploads from the main thread instead of from separate threads;
365 may or may not improve stability with NVIDIA's proprietary drivers.
367 - When beginning a new video segment, the shutdown of the old encoder
368 is now done in a background thread, in order to not disturb the external
369 stream. The audio still goes into a somewhat random stream, though.
371 - You can now override the default stream-to-card mapping with --map-signal=
374 - Nageru now tries to lock itself into RAM if it has the permissions to do
375 so, for better realtime behavior. (Writing the stream to disk tends to
376 fill the buffer cache, eventually paging less-used parts of Nageru out.)
378 - Various fixes for deadlocks, memory leaks, and many other errors.
381 Nageru 1.2.1, April 15th, 2016
383 - Images are now updated from disk about every second, so that it is possible
384 to update e.g. overlays during streaming, although somewhat slowly.
386 - Fix support for PNG images.
388 - You can now send SIGHUP to start a new cut instead of using the menu.
390 - Added a --help option.
392 - Various tweaks to OpenGL fence handling.
395 Nageru 1.2.0, April 6th, 2016
397 - Support for Blackmagic's PCI and Thunderbolt cards, using the official
398 (closed-source) Blackmagic drivers. (You do not need the SDK installed, though.)
399 You can use PCI and USB cards pretty much interchangeably.
401 - Much more stable handling of frame queues on non-master cards. In particular,
402 you can have a master card on 50 Hz and another card on 60 Hz without getting
403 lots of warning messages and a 10+ frame latency on the second card.
405 - Many new options in the right click menu on cards: Adjustable video inputs,
406 adjustable audio inputs, adjustable resolutions, ability to select card for
409 - Add support for starting with almost all audio processing turned off
412 - The UI now marks inputs with red or green to mark them as participating in
413 the live or preview signal, respectively. Red takes priority. (Actually,
414 it merely asks the theme for a color for each input; the theme contains
417 - Add support for uncompressed video instead of H.264 on the HTTP server,
418 while still storing H.264 to files (--http-uncompressed-video). Note that
419 depending on your client, this might not actually be more CPU efficient
420 even on localhost, so be sure to check.
422 - Add a simpler, less featureful theme (simple.lua) that should be easier to
423 understand for beginners. Themes are now also choosable with -t on the command
426 - Too many bugfixes and small tweaks to list. In particular, many memory leaks
427 in the streaming part have been identified and fixed.
430 Nageru 1.1.0, February 24th, 2016
432 - Support doing the H.264 encoding on a different graphics device from the one
433 doing the mixing. In particular, this makes it possible to use Nageru on an
434 NVIDIA GPU while still encoding H.264 video using Intel Quick Sync (NVENC
435 is not supported yet) -- it is less efficient since the data needs to be read
436 back via the CPU, but the NVIDIA cards and drivers are so much faster that it
437 doesn't really matter. Tested on a GTX 950 with the proprietary drivers.
439 - In the included example theme, fix fading to/from deinterlaced sources.
441 - Various smaller compilation, distribution and documentation fixes.
444 Nageru 1.0.0, January 30th, 2016