1 Nageru and Futatabi 1.9.0, July 20th, 2019
3 - Significant reworking of the theme engine: Chains (now called scenes)
4 can now instantiate different versions behind-the-scenes instead of the
5 user having to worry about input types, low/high quality, or replacing
6 effects with others. Menus can have submenus and checkboxes. Finally, some
7 callbacks, such as num_channels(), have been replaced with easier-to-use
8 imperative functions, ie., an explicit call to Nageru.set_num_channels(N).
10 See the documentation for more information, or the included themes,
11 which have been ported to the new interfaces. Existing themes will continue
12 to run without modification, but the old interfaces are deprecated.
14 Martin Sandsmark contributed a bugfix to this work.
16 - Support cross-compilation. Patch from Helmut Grohne.
18 - Kaeru now has a parameter --disable-audio for transcoding streams
21 - Various bugfixes. In particular, work around an issue where Mesa's shader
22 cache interacts with Qt's EGL support to create a confusing crash with
23 “vertex shader lacks `main'”.
26 Nageru and Futatabi 1.8.6, April 19th, 2019
28 - Filenames for the recordings are now without colons; it caused
29 too much problems with various software, including most players.
34 Nageru and Futatabi 1.8.5, March 30th, 2019
36 - Experimental support for audio in Futatabi: The MJPEG export from
37 Nageru now supports audio, and Futatabi will store it and play it
38 back. Audio is currently only supported when playing at 100% speed
39 (no pitch shift or time stretching), and there is no audio output
40 to the Futatabi operator.
42 - Significant optimizations to MJPEG encoding, both when in use and when
48 Nageru and Futatabi 1.8.4, March 11th, 2019
50 - Various bugfixes, in particular for 32-bit platforms.
53 Nageru and Futatabi 1.8.3, March 10th, 2019
55 - Allow controlling video mixing from MIDI events. Adapted from a patch
56 by Yann Dubreuil, from the BreizhCamp repository.
58 - Use ALSA hardware timestamps for input; gives more stable delay.
59 Patch by Yann Dubreuil, from the BreizhCamp repository.
61 - For FFmpeg inputs, add an option for playing as fast as possible
64 - In Futatabi, support queueing and playing clips with no cue-out point.
65 This opens up for new and even faster UI workflows.
70 Nageru and Futatabi 1.8.2, January 19th, 2019
72 - Futatabi now supports MIDI controllers like Nageru, including an editor
73 and a sample mapping for the Behringer CMD PL-1.
75 - Futatabi now supports changing master speed during play, both via a
76 MIDI controller and the GUI.
81 Nageru and Futatabi 1.8.1, December 30th, 2018
83 - Futatabi can now communicate its queue status through a subtitle track,
84 and Nageru can consume it. This allows Nageru themes to get precise
85 information programmatically, e.g. to show status or automatically
86 switch away when the queue is about to end.
88 - Futatabi can now reuse the computed flow across successive frames when
89 interpolating between the same frame pair. This significantly reduces
90 the GPU load when doing super-slow motion (slower than 0.5x).
92 - Various smaller fixes.
95 Nageru and Futatabi 1.8.0, December 20th, 2018
97 - Initial release of Futatabi, a multicamera slow motion video server
98 designed to be used with Nageru. Futatabi is currently in alpha stage
99 and largely undocumented.
101 - Add support for multi-camera export from Nageru. A multi-camera stream
102 contains all frames from all camera inputs (unless overridden by
103 --mjpeg-export-cards), unprocessed except for MJPEG encoding.
104 MJPEG encoding is done in hardware (via VA-API) on Skylake or newer,
105 or using libjpeg otherwise. The intended user of this stream is Futatabi.
108 Nageru 1.7.5, November 11th, 2018
110 - Fix a bug where --record-x264-video would not work when VA-API was
111 not present, making the option rather useless (broken in 1.7.2).
112 Bug reported by Peter De Schrijver.
114 - The build system has been switched to Meson; see the README for new
117 - Various smaller fixes.
120 Nageru 1.7.4, August 31st, 2018
122 - Rework the x264 speedcontrol presets, again. (They earlier assumed
123 we could control B-frame settings on the fly, which we cannot with
124 threaded lookahead.) Also support x264 >= 153, which can support
125 multiple bit depths in the same library.
127 - Default to SDI inputs instead of HDMI.
129 - Add a mode to run in full screen (--fullscreen). Adapted from a patch
132 - Add support for lift/gamma/gain in the theme. Patch by Alexandre Thomazo.
135 Nageru 1.7.3, May 22nd, 2018
137 - When using multichannel audio, add a control for adjusting the
138 stereo width (from normal stereo to mono, all the way to
141 - Removed --http-coarse-timebase (it is now always on).
146 Nageru 1.7.2, April 28th, 2018
148 - Several improvements to video (FFmpeg) inputs: You can now use
149 them as audio sources, you can right-click on video channels
150 to change URL/filename on-the-fly, themes can ask for forced
151 disconnection (useful for network sources that are hanging),
152 and various other improvements. Be aware that the audio support
153 may still be somewhat rough, as A/V sync of arbitrary video
154 playout is a hard problem.
156 - The included themes have been fixed to properly make the returned
157 chain preparation functions independent of global state (e.g. if
158 the white balance for a channel was changed before the frame was
159 actually rendered). If you are using a custom theme, you may want
160 to apply similar fixes to it.
162 - In Metacube stream output, mark each keyframe with a pts metadata
163 block. This allows Cubemap 1.4.0 or newer to serve fMP4 fragments
164 for HLS from Nageru's output, without any further remuxing or
167 - If needed, Nageru will now automatically try to autodetect a
168 usable --va-display parameter by probing all DRM nodes for H.264
169 encoders. This removes the need to set --va-display in almost all
170 cases, and also removes the dependency on libpci.
172 - For GPUs that support querying available memory (in practice only
173 NVIDIA GPUs at the current time), expose the amount of used/total
174 GPU memory both on standard output and in the Prometheus metrics
175 (as well as included Grafana dashboard).
177 - The Grafana dashboard now supports heatmaps for the chosen x264
178 speedcontrol preset (requires Grafana 5.1 or newer). (There used to
179 be a heatmap earlier, but it was all broken.)
184 Nageru 1.7.1, March 26th, 2018
186 - Various bugfixes, mostly related to HTML and video inputs.
189 Nageru 1.7.0, March 8th, 2018
191 - Support for HTML5 graphics directly in Nageru, through CEF
192 (Chromium Embedded Framework). This performs better and is more
193 flexible than integrating with CasparCG over a socket. Note that
194 CEF is an optional component; see the documentation for more
197 - Add an HTTP endpoint for enumerating channels and one for getting
198 only their colors. Intended for remote tally applications;
199 set the documentation.
201 - Add a video grid display that removes the audio controls and shows
202 the video channels only, potentially in multiple rows if that makes
203 for a larger viewing area.
205 - Themes can now present simple menus in the Nageru UI. See the
206 documentation for more information.
211 Nageru 1.6.4, January 25th, 2018
213 - Fix compilation with the upcoming FFmpeg 3.5.
215 - Switch to LuaJIT for the theme engine, which is faster.
217 - Various bugfixes and smaller optimizations.
220 Nageru 1.6.3, November 8th, 2017
222 - Add quick-cut keys (Q, W, E, etc.) below the preview keys.
223 Since it's easy to hit these by accident and put up a signal
224 you didn't want, they are disabled by default (they can be
225 enabled in the video menu, or with the command line flag
228 - Rework the x264 speedcontrol presets to better match newer
231 - Add an option for changing the HTTP port (--http-port).
233 - Various smaller bug and integration fixes.
236 Nageru 1.6.2, July 16th, 2017
238 - Various smaller Kaeru fixes, mostly around metrics. Also,
239 you can now adjust the x264 bitrate in Kaeru (in 100 kbit/sec
240 increments) by sending SIGUSR1 (higher) or SIGUSR2 (lower).
243 Nageru 1.6.1, July 9th, 2017
245 - Add native export of Prometheus metrics.
247 - Rework the frame queue drop algorithm. The new one should handle tricky
248 situations much better, especially when a card is drifting very slowly
249 against the master timer.
251 - Add Kaeru, an experimental transcoding tool based on Nageru code.
252 Kaeru can run headless on a server without a GPU to transcode a
253 Nageru stream into a lower-bitrate one, replacing VLC.
255 - Work around a bug in some versions of NVIDIA's OpenGL drivers that would
256 crash Nageru after about three hours (fix in cooperation with Movit).
258 - Fix a crash with i965-va-driver 1.8.x.
260 - Reduce mutex contention in certain critical places, causing lower tail
261 latency in the mixer.
264 Nageru 1.6.0, May 29th, 2017
266 - Add support for having videos (from file or from URL) as a separate
267 input channels, albeit with some limitations. Apart from the obvious use of
268 looping pause clips or similar, this can be used to integrate with CasparCG;
269 see the manual for more details.
271 - Add a frame analyzer (accessible from the Video menu) containing an
272 RGB histogram and a color dropped tool. This is useful in calibrating
273 video chains by playing back a known signal. Note that this adds a
274 dependency on QCustomPlot.
276 - Allow overriding Y'CbCr input interpretation, for inputs that don't
277 use the correct settings. Also, Rec. 601 is now used by default instead
278 of Rec. 709 for SD resolutions.
280 - Support other sample rates than 48000 Hz from bmusb.
283 Nageru 1.5.0, April 5th, 2017
285 - Support for low-latency HDMI/SDI output in addition to (or instead of) the
286 stream. This currently only works with DeckLink cards, not bmusb. See the
287 manual for more information.
289 - Support changing the resolution from the command line, instead of locking
290 everything to 1280x720.
292 - The A/V sync code has been rewritten to be more in line with Fons
293 Adriaensen's original paper. It handles several cases much better,
294 in particular when trying to match 59.94 and 60 Hz sources to each other.
295 However, it might occasionally need a few extra seconds on startup to
296 lock properly if startup is slow.
298 - Add support for using x264 for the disk recording. This makes it possible,
299 among other things, to run Nageru on a machine entirely without VA-API
302 - Support for 10-bit Y'CbCr, both on input and output. (Output requires
303 x264 disk recording, as Quick Sync Video does not support 10-bit H.264.)
304 This requires compute shader support, and is in general a little bit
305 slower on input and output, due to the extra amount of data being shuffled
306 around. Intermediate precision is 16-bit floating-point or better,
309 - Enable input mode autodetection for DeckLink cards that support it.
310 (bmusb mode has always been autodetected.)
312 - Add functionality to add a time code to the stream; useful for debugging
315 - The live display is now both more performant and of higher image quality.
317 - Fix a long-standing issue where the preview displays would be too bright
318 when using an NVIDIA GPU. (This did not affect the finished stream.)
320 - Many other bugfixes and small improvements.
323 Nageru 1.4.2, November 24th, 2016
325 - Fix a thread race that would sometimes cause x264 streaming to go awry.
328 Nageru 1.4.1, November 6th, 2016
333 Nageru 1.4.0, October 26th, 2016
335 - Support for multichannel (or more accurately, multi-bus) audio,
336 choosable from the UI or using the --multichannel command-line
337 flag. In multichannel mode, you can take in inputs from multiple
338 different sources (or different channels on the same source, for
339 multichannel sound cards), apply effects to them separately and then
340 mix them together. This includes both audio from the video cards
341 as well as ALSA inputs, including hotplug. Ola Gundelsby contributed
342 invaluable feedback on this feature throughout the entire
345 - Support for having MIDI controllers control various aspects of the
346 audio UI, with relatively flexible mapping. Note that different
347 MIDI controllers can vary significantly in what protocol they speak,
348 so Nageru will not necessarily work with all. (The primary testing
349 controller has been the Akai MIDImix, and a pre-made mapping for
350 that is included. The Korg nanoKONTROL2 has also been tested and
351 works, but it requires some Korg-specific SysEx commands to make
352 the buttons and lights work.)
354 - Add a disk space indicator to the main window.
356 - Various bugfixes. In particular, an issue where the audio would pitch
357 up sharply after a series of many dropped frames has been fixed.
360 Nageru 1.3.4, August 2nd, 2016
365 Nageru 1.3.3, July 27th, 2016
367 - Various changes to make distribution packaging easier; in particular,
368 theme data can be picked up from /usr/local/share/nageru.
370 - Fix various FFmpeg deprecation warnings, now that we need FFmpeg
371 3.1 for other reasons anyway.
374 Nageru 1.3.2, July 23rd, 2016
376 - Allow limited hotplugging (unplugging and replugging) of USB cards.
377 You can use the new command-line option --num-fake-cards (-C) to add
378 fake cards that show only a single color and that will be replaced
379 by real cards as you plug them in; you can also unplug cards and have
380 them be replaced by fake cards. Fake cards can also be used for testing
381 Nageru without actually having any video cards available.
383 - Add Metacube timestamping of every keyframe, for easier detection of
384 streams not keeping up. Works with the new timestamp feature of
385 Cubemap 1.3.1. Will be ignored (save for some logging) in older
388 - The included default theme has been reworked and cleaned up to be
389 more understandable and extensible.
391 - Add more command-line options for initial audio setup.
394 Nageru 1.3.1, July 1st, 2016
396 - Various display bugfixes.
399 Nageru 1.3.0, June 26th, 2016
401 - It is now possible, given enough CPU power (e.g., a quad-core Haswell or
402 faster desktop CPU), to output a stream that is suitable for streaming
403 directly to end users without further transcoding. In particular, this
404 includes support for encoding the network stream with x264 (the stream
405 saved to disk is still done using Quick Sync), for Metacube framing (for
406 streaming to the Cubemap reflector), and for choosing the network stream
407 mux. For more information, see the README.
409 - Add a flag (--disable-alsa-output) to disable ALSA monitoring output.
411 - Do texture uploads from the main thread instead of from separate threads;
412 may or may not improve stability with NVIDIA's proprietary drivers.
414 - When beginning a new video segment, the shutdown of the old encoder
415 is now done in a background thread, in order to not disturb the external
416 stream. The audio still goes into a somewhat random stream, though.
418 - You can now override the default stream-to-card mapping with --map-signal=
421 - Nageru now tries to lock itself into RAM if it has the permissions to do
422 so, for better realtime behavior. (Writing the stream to disk tends to
423 fill the buffer cache, eventually paging less-used parts of Nageru out.)
425 - Various fixes for deadlocks, memory leaks, and many other errors.
428 Nageru 1.2.1, April 15th, 2016
430 - Images are now updated from disk about every second, so that it is possible
431 to update e.g. overlays during streaming, although somewhat slowly.
433 - Fix support for PNG images.
435 - You can now send SIGHUP to start a new cut instead of using the menu.
437 - Added a --help option.
439 - Various tweaks to OpenGL fence handling.
442 Nageru 1.2.0, April 6th, 2016
444 - Support for Blackmagic's PCI and Thunderbolt cards, using the official
445 (closed-source) Blackmagic drivers. (You do not need the SDK installed, though.)
446 You can use PCI and USB cards pretty much interchangeably.
448 - Much more stable handling of frame queues on non-master cards. In particular,
449 you can have a master card on 50 Hz and another card on 60 Hz without getting
450 lots of warning messages and a 10+ frame latency on the second card.
452 - Many new options in the right click menu on cards: Adjustable video inputs,
453 adjustable audio inputs, adjustable resolutions, ability to select card for
456 - Add support for starting with almost all audio processing turned off
459 - The UI now marks inputs with red or green to mark them as participating in
460 the live or preview signal, respectively. Red takes priority. (Actually,
461 it merely asks the theme for a color for each input; the theme contains
464 - Add support for uncompressed video instead of H.264 on the HTTP server,
465 while still storing H.264 to files (--http-uncompressed-video). Note that
466 depending on your client, this might not actually be more CPU efficient
467 even on localhost, so be sure to check.
469 - Add a simpler, less featureful theme (simple.lua) that should be easier to
470 understand for beginners. Themes are now also choosable with -t on the command
473 - Too many bugfixes and small tweaks to list. In particular, many memory leaks
474 in the streaming part have been identified and fixed.
477 Nageru 1.1.0, February 24th, 2016
479 - Support doing the H.264 encoding on a different graphics device from the one
480 doing the mixing. In particular, this makes it possible to use Nageru on an
481 NVIDIA GPU while still encoding H.264 video using Intel Quick Sync (NVENC
482 is not supported yet) -- it is less efficient since the data needs to be read
483 back via the CPU, but the NVIDIA cards and drivers are so much faster that it
484 doesn't really matter. Tested on a GTX 950 with the proprietary drivers.
486 - In the included example theme, fix fading to/from deinterlaced sources.
488 - Various smaller compilation, distribution and documentation fixes.
491 Nageru 1.0.0, January 30th, 2016