1 Nageru and Futatabi 1.8.5, March 30th, 2019
3 - Experimental support for audio in Futatabi: The MJPEG export from
4 Nageru now supports audio, and Futatabi will store it and play it
5 back. Audio is currently only supported when playing at 100% speed
6 (no pitch shift or time stretching), and there is no audio output
7 to the Futatabi operator.
9 - Significant optimizations to MJPEG encoding, both when in use and when
15 Nageru and Futatabi 1.8.4, March 11th, 2019
17 - Various bugfixes, in particular for 32-bit platforms.
20 Nageru and Futatabi 1.8.3, March 10th, 2019
22 - Allow controlling video mixing from MIDI events. Adapted from a patch
23 by Yann Dubreuil, from the BreizhCamp repository.
25 - Use ALSA hardware timestamps for input; gives more stable delay.
26 Patch by Yann Dubreuil, from the BreizhCamp repository.
28 - For FFmpeg inputs, add an option for playing as fast as possible
31 - In Futatabi, support queueing and playing clips with noe cue-out point.
32 This opens up for new and even faster UI workflows.
37 Nageru and Futatabi 1.8.2, January 19th, 2019
39 - Futatabi now supports MIDI controllers like Nageru, including an editor
40 and a sample mapping for the Behringer CMD PL-1.
42 - Futatabi now supports changing master speed during play, both via a
43 MIDI controller and the GUI.
48 Nageru and Futatabi 1.8.1, December 30th, 2018
50 - Futatabi can now communicate its queue status through a subtitle track,
51 and Nageru can consume it. This allows Nageru themes to get precise
52 information programmatically, e.g. to show status or automatically
53 switch away when the queue is about to end.
55 - Futatabi can now reuse the computed flow across successive frames when
56 interpolating between the same frame pair. This significantly reduces
57 the GPU load when doing super-slow motion (slower than 0.5x).
59 - Various smaller fixes.
62 Nageru and Futatabi 1.8.0, December 20th, 2018
64 - Initial release of Futatabi, a multicamera slow motion video server
65 designed to be used with Nageru. Futatabi is currently in alpha stage
66 and largely undocumented.
68 - Add support for multi-camera export from Nageru. A multi-camera stream
69 contains all frames from all camera inputs (unless overridden by
70 --mjpeg-export-cards), unprocessed except for MJPEG encoding.
71 MJPEG encoding is done in hardware (via VA-API) on Skylake or newer,
72 or using libjpeg otherwise. The intended user of this stream is Futatabi.
75 Nageru 1.7.5, November 11th, 2018
77 - Fix a bug where --record-x264-video would not work when VA-API was
78 not present, making the option rather useless (broken in 1.7.2).
79 Bug reported by Peter De Schrijver.
81 - The build system has been switched to Meson; see the README for new
84 - Various smaller fixes.
87 Nageru 1.7.4, August 31st, 2018
89 - Rework the x264 speedcontrol presets, again. (They earlier assumed
90 we could control B-frame settings on the fly, which we cannot with
91 threaded lookahead.) Also support x264 >= 153, which can support
92 multiple bit depths in the same library.
94 - Default to SDI inputs instead of HDMI.
96 - Add a mode to run in full screen (--fullscreen). Adapted from a patch
99 - Add support for lift/gamma/gain in the theme. Patch by Alexandre Thomazo.
102 Nageru 1.7.3, May 22nd, 2018
104 - When using multichannel audio, add a control for adjusting the
105 stereo width (from normal stereo to mono, all the way to
108 - Removed --http-coarse-timebase (it is now always on).
113 Nageru 1.7.2, April 28th, 2018
115 - Several improvements to video (FFmpeg) inputs: You can now use
116 them as audio sources, you can right-click on video channels
117 to change URL/filename on-the-fly, themes can ask for forced
118 disconnection (useful for network sources that are hanging),
119 and various other improvements. Be aware that the audio support
120 may still be somewhat rough, as A/V sync of arbitrary video
121 playout is a hard problem.
123 - The included themes have been fixed to properly make the returned
124 chain preparation functions independent of global state (e.g. if
125 the white balance for a channel was changed before the frame was
126 actually rendered). If you are using a custom theme, you may want
127 to apply similar fixes to it.
129 - In Metacube stream output, mark each keyframe with a pts metadata
130 block. This allows Cubemap 1.4.0 or newer to serve fMP4 fragments
131 for HLS from Nageru's output, without any further remuxing or
134 - If needed, Nageru will now automatically try to autodetect a
135 usable --va-display parameter by probing all DRM nodes for H.264
136 encoders. This removes the need to set --va-display in almost all
137 cases, and also removes the dependency on libpci.
139 - For GPUs that support querying available memory (in practice only
140 NVIDIA GPUs at the current time), expose the amount of used/total
141 GPU memory both on standard output and in the Prometheus metrics
142 (as well as included Grafana dashboard).
144 - The Grafana dashboard now supports heatmaps for the chosen x264
145 speedcontrol preset (requires Grafana 5.1 or newer). (There used to
146 be a heatmap earlier, but it was all broken.)
151 Nageru 1.7.1, March 26th, 2018
153 - Various bugfixes, mostly related to HTML and video inputs.
156 Nageru 1.7.0, March 8th, 2018
158 - Support for HTML5 graphics directly in Nageru, through CEF
159 (Chromium Embedded Framework). This performs better and is more
160 flexible than integrating with CasparCG over a socket. Note that
161 CEF is an optional component; see the documentation for more
164 - Add an HTTP endpoint for enumerating channels and one for getting
165 only their colors. Intended for remote tally applications;
166 set the documentation.
168 - Add a video grid display that removes the audio controls and shows
169 the video channels only, potentially in multiple rows if that makes
170 for a larger viewing area.
172 - Themes can now present simple menus in the Nageru UI. See the
173 documentation for more information.
178 Nageru 1.6.4, January 25th, 2018
180 - Fix compilation with the upcoming FFmpeg 3.5.
182 - Switch to LuaJIT for the theme engine, which is faster.
184 - Various bugfixes and smaller optimizations.
187 Nageru 1.6.3, November 8th, 2017
189 - Add quick-cut keys (Q, W, E, etc.) below the preview keys.
190 Since it's easy to hit these by accident and put up a signal
191 you didn't want, they are disabled by default (they can be
192 enabled in the video menu, or with the command line flag
195 - Rework the x264 speedcontrol presets to better match newer
198 - Add an option for changing the HTTP port (--http-port).
200 - Various smaller bug and integration fixes.
203 Nageru 1.6.2, July 16th, 2017
205 - Various smaller Kaeru fixes, mostly around metrics. Also,
206 you can now adjust the x264 bitrate in Kaeru (in 100 kbit/sec
207 increments) by sending SIGUSR1 (higher) or SIGUSR2 (lower).
210 Nageru 1.6.1, July 9th, 2017
212 - Add native export of Prometheus metrics.
214 - Rework the frame queue drop algorithm. The new one should handle tricky
215 situations much better, especially when a card is drifting very slowly
216 against the master timer.
218 - Add Kaeru, an experimental transcoding tool based on Nageru code.
219 Kaeru can run headless on a server without a GPU to transcode a
220 Nageru stream into a lower-bitrate one, replacing VLC.
222 - Work around a bug in some versions of NVIDIA's OpenGL drivers that would
223 crash Nageru after about three hours (fix in cooperation with Movit).
225 - Fix a crash with i965-va-driver 1.8.x.
227 - Reduce mutex contention in certain critical places, causing lower tail
228 latency in the mixer.
231 Nageru 1.6.0, May 29th, 2017
233 - Add support for having videos (from file or from URL) as a separate
234 input channels, albeit with some limitations. Apart from the obvious use of
235 looping pause clips or similar, this can be used to integrate with CasparCG;
236 see the manual for more details.
238 - Add a frame analyzer (accessible from the Video menu) containing an
239 RGB histogram and a color dropped tool. This is useful in calibrating
240 video chains by playing back a known signal. Note that this adds a
241 dependency on QCustomPlot.
243 - Allow overriding Y'CbCr input interpretation, for inputs that don't
244 use the correct settings. Also, Rec. 601 is now used by default instead
245 of Rec. 709 for SD resolutions.
247 - Support other sample rates than 48000 Hz from bmusb.
250 Nageru 1.5.0, April 5th, 2017
252 - Support for low-latency HDMI/SDI output in addition to (or instead of) the
253 stream. This currently only works with DeckLink cards, not bmusb. See the
254 manual for more information.
256 - Support changing the resolution from the command line, instead of locking
257 everything to 1280x720.
259 - The A/V sync code has been rewritten to be more in line with Fons
260 Adriaensen's original paper. It handles several cases much better,
261 in particular when trying to match 59.94 and 60 Hz sources to each other.
262 However, it might occasionally need a few extra seconds on startup to
263 lock properly if startup is slow.
265 - Add support for using x264 for the disk recording. This makes it possible,
266 among other things, to run Nageru on a machine entirely without VA-API
269 - Support for 10-bit Y'CbCr, both on input and output. (Output requires
270 x264 disk recording, as Quick Sync Video does not support 10-bit H.264.)
271 This requires compute shader support, and is in general a little bit
272 slower on input and output, due to the extra amount of data being shuffled
273 around. Intermediate precision is 16-bit floating-point or better,
276 - Enable input mode autodetection for DeckLink cards that support it.
277 (bmusb mode has always been autodetected.)
279 - Add functionality to add a time code to the stream; useful for debugging
282 - The live display is now both more performant and of higher image quality.
284 - Fix a long-standing issue where the preview displays would be too bright
285 when using an NVIDIA GPU. (This did not affect the finished stream.)
287 - Many other bugfixes and small improvements.
290 Nageru 1.4.2, November 24th, 2016
292 - Fix a thread race that would sometimes cause x264 streaming to go awry.
295 Nageru 1.4.1, November 6th, 2016
300 Nageru 1.4.0, October 26th, 2016
302 - Support for multichannel (or more accurately, multi-bus) audio,
303 choosable from the UI or using the --multichannel command-line
304 flag. In multichannel mode, you can take in inputs from multiple
305 different sources (or different channels on the same source, for
306 multichannel sound cards), apply effects to them separately and then
307 mix them together. This includes both audio from the video cards
308 as well as ALSA inputs, including hotplug. Ola Gundelsby contributed
309 invaluable feedback on this feature throughout the entire
312 - Support for having MIDI controllers control various aspects of the
313 audio UI, with relatively flexible mapping. Note that different
314 MIDI controllers can vary significantly in what protocol they speak,
315 so Nageru will not necessarily work with all. (The primary testing
316 controller has been the Akai MIDImix, and a pre-made mapping for
317 that is included. The Korg nanoKONTROL2 has also been tested and
318 works, but it requires some Korg-specific SysEx commands to make
319 the buttons and lights work.)
321 - Add a disk space indicator to the main window.
323 - Various bugfixes. In particular, an issue where the audio would pitch
324 up sharply after a series of many dropped frames has been fixed.
327 Nageru 1.3.4, August 2nd, 2016
332 Nageru 1.3.3, July 27th, 2016
334 - Various changes to make distribution packaging easier; in particular,
335 theme data can be picked up from /usr/local/share/nageru.
337 - Fix various FFmpeg deprecation warnings, now that we need FFmpeg
338 3.1 for other reasons anyway.
341 Nageru 1.3.2, July 23rd, 2016
343 - Allow limited hotplugging (unplugging and replugging) of USB cards.
344 You can use the new command-line option --num-fake-cards (-C) to add
345 fake cards that show only a single color and that will be replaced
346 by real cards as you plug them in; you can also unplug cards and have
347 them be replaced by fake cards. Fake cards can also be used for testing
348 Nageru without actually having any video cards available.
350 - Add Metacube timestamping of every keyframe, for easier detection of
351 streams not keeping up. Works with the new timestamp feature of
352 Cubemap 1.3.1. Will be ignored (save for some logging) in older
355 - The included default theme has been reworked and cleaned up to be
356 more understandable and extensible.
358 - Add more command-line options for initial audio setup.
361 Nageru 1.3.1, July 1st, 2016
363 - Various display bugfixes.
366 Nageru 1.3.0, June 26th, 2016
368 - It is now possible, given enough CPU power (e.g., a quad-core Haswell or
369 faster desktop CPU), to output a stream that is suitable for streaming
370 directly to end users without further transcoding. In particular, this
371 includes support for encoding the network stream with x264 (the stream
372 saved to disk is still done using Quick Sync), for Metacube framing (for
373 streaming to the Cubemap reflector), and for choosing the network stream
374 mux. For more information, see the README.
376 - Add a flag (--disable-alsa-output) to disable ALSA monitoring output.
378 - Do texture uploads from the main thread instead of from separate threads;
379 may or may not improve stability with NVIDIA's proprietary drivers.
381 - When beginning a new video segment, the shutdown of the old encoder
382 is now done in a background thread, in order to not disturb the external
383 stream. The audio still goes into a somewhat random stream, though.
385 - You can now override the default stream-to-card mapping with --map-signal=
388 - Nageru now tries to lock itself into RAM if it has the permissions to do
389 so, for better realtime behavior. (Writing the stream to disk tends to
390 fill the buffer cache, eventually paging less-used parts of Nageru out.)
392 - Various fixes for deadlocks, memory leaks, and many other errors.
395 Nageru 1.2.1, April 15th, 2016
397 - Images are now updated from disk about every second, so that it is possible
398 to update e.g. overlays during streaming, although somewhat slowly.
400 - Fix support for PNG images.
402 - You can now send SIGHUP to start a new cut instead of using the menu.
404 - Added a --help option.
406 - Various tweaks to OpenGL fence handling.
409 Nageru 1.2.0, April 6th, 2016
411 - Support for Blackmagic's PCI and Thunderbolt cards, using the official
412 (closed-source) Blackmagic drivers. (You do not need the SDK installed, though.)
413 You can use PCI and USB cards pretty much interchangeably.
415 - Much more stable handling of frame queues on non-master cards. In particular,
416 you can have a master card on 50 Hz and another card on 60 Hz without getting
417 lots of warning messages and a 10+ frame latency on the second card.
419 - Many new options in the right click menu on cards: Adjustable video inputs,
420 adjustable audio inputs, adjustable resolutions, ability to select card for
423 - Add support for starting with almost all audio processing turned off
426 - The UI now marks inputs with red or green to mark them as participating in
427 the live or preview signal, respectively. Red takes priority. (Actually,
428 it merely asks the theme for a color for each input; the theme contains
431 - Add support for uncompressed video instead of H.264 on the HTTP server,
432 while still storing H.264 to files (--http-uncompressed-video). Note that
433 depending on your client, this might not actually be more CPU efficient
434 even on localhost, so be sure to check.
436 - Add a simpler, less featureful theme (simple.lua) that should be easier to
437 understand for beginners. Themes are now also choosable with -t on the command
440 - Too many bugfixes and small tweaks to list. In particular, many memory leaks
441 in the streaming part have been identified and fixed.
444 Nageru 1.1.0, February 24th, 2016
446 - Support doing the H.264 encoding on a different graphics device from the one
447 doing the mixing. In particular, this makes it possible to use Nageru on an
448 NVIDIA GPU while still encoding H.264 video using Intel Quick Sync (NVENC
449 is not supported yet) -- it is less efficient since the data needs to be read
450 back via the CPU, but the NVIDIA cards and drivers are so much faster that it
451 doesn't really matter. Tested on a GTX 950 with the proprietary drivers.
453 - In the included example theme, fix fading to/from deinterlaced sources.
455 - Various smaller compilation, distribution and documentation fixes.
458 Nageru 1.0.0, January 30th, 2016