1 Nageru and Futatabi 1.9.1, November 17th, 2019
3 - Support disabling optional effects if a given other effect is _enabled_
4 (typically for mutually exclusive effects).
6 - Make it possible for the theme to override the status line, by declaring
7 a function format_status_line() in the theme. Inspired by a C++ patch by
8 Alex Thomazo in the Breizhcamp repository.
13 Nageru and Futatabi 1.9.0, July 20th, 2019
15 - Significant reworking of the theme engine: Chains (now called scenes)
16 can now instantiate different versions behind-the-scenes instead of the
17 user having to worry about input types, low/high quality, or replacing
18 effects with others. Menus can have submenus and checkboxes. Finally, some
19 callbacks, such as num_channels(), have been replaced with easier-to-use
20 imperative functions, ie., an explicit call to Nageru.set_num_channels(N).
22 See the documentation for more information, or the included themes,
23 which have been ported to the new interfaces. Existing themes will continue
24 to run without modification, but the old interfaces are deprecated.
26 Martin Sandsmark contributed a bugfix to this work.
28 - Support cross-compilation. Patch from Helmut Grohne.
30 - Kaeru now has a parameter --disable-audio for transcoding streams
33 - Various bugfixes. In particular, work around an issue where Mesa's shader
34 cache interacts with Qt's EGL support to create a confusing crash with
35 “vertex shader lacks `main'”.
38 Nageru and Futatabi 1.8.6, April 19th, 2019
40 - Filenames for the recordings are now without colons; it caused
41 too much problems with various software, including most players.
46 Nageru and Futatabi 1.8.5, March 30th, 2019
48 - Experimental support for audio in Futatabi: The MJPEG export from
49 Nageru now supports audio, and Futatabi will store it and play it
50 back. Audio is currently only supported when playing at 100% speed
51 (no pitch shift or time stretching), and there is no audio output
52 to the Futatabi operator.
54 - Significant optimizations to MJPEG encoding, both when in use and when
60 Nageru and Futatabi 1.8.4, March 11th, 2019
62 - Various bugfixes, in particular for 32-bit platforms.
65 Nageru and Futatabi 1.8.3, March 10th, 2019
67 - Allow controlling video mixing from MIDI events. Adapted from a patch
68 by Yann Dubreuil, from the BreizhCamp repository.
70 - Use ALSA hardware timestamps for input; gives more stable delay.
71 Patch by Yann Dubreuil, from the BreizhCamp repository.
73 - For FFmpeg inputs, add an option for playing as fast as possible
76 - In Futatabi, support queueing and playing clips with no cue-out point.
77 This opens up for new and even faster UI workflows.
82 Nageru and Futatabi 1.8.2, January 19th, 2019
84 - Futatabi now supports MIDI controllers like Nageru, including an editor
85 and a sample mapping for the Behringer CMD PL-1.
87 - Futatabi now supports changing master speed during play, both via a
88 MIDI controller and the GUI.
93 Nageru and Futatabi 1.8.1, December 30th, 2018
95 - Futatabi can now communicate its queue status through a subtitle track,
96 and Nageru can consume it. This allows Nageru themes to get precise
97 information programmatically, e.g. to show status or automatically
98 switch away when the queue is about to end.
100 - Futatabi can now reuse the computed flow across successive frames when
101 interpolating between the same frame pair. This significantly reduces
102 the GPU load when doing super-slow motion (slower than 0.5x).
104 - Various smaller fixes.
107 Nageru and Futatabi 1.8.0, December 20th, 2018
109 - Initial release of Futatabi, a multicamera slow motion video server
110 designed to be used with Nageru. Futatabi is currently in alpha stage
111 and largely undocumented.
113 - Add support for multi-camera export from Nageru. A multi-camera stream
114 contains all frames from all camera inputs (unless overridden by
115 --mjpeg-export-cards), unprocessed except for MJPEG encoding.
116 MJPEG encoding is done in hardware (via VA-API) on Skylake or newer,
117 or using libjpeg otherwise. The intended user of this stream is Futatabi.
120 Nageru 1.7.5, November 11th, 2018
122 - Fix a bug where --record-x264-video would not work when VA-API was
123 not present, making the option rather useless (broken in 1.7.2).
124 Bug reported by Peter De Schrijver.
126 - The build system has been switched to Meson; see the README for new
129 - Various smaller fixes.
132 Nageru 1.7.4, August 31st, 2018
134 - Rework the x264 speedcontrol presets, again. (They earlier assumed
135 we could control B-frame settings on the fly, which we cannot with
136 threaded lookahead.) Also support x264 >= 153, which can support
137 multiple bit depths in the same library.
139 - Default to SDI inputs instead of HDMI.
141 - Add a mode to run in full screen (--fullscreen). Adapted from a patch
144 - Add support for lift/gamma/gain in the theme. Patch by Alexandre Thomazo.
147 Nageru 1.7.3, May 22nd, 2018
149 - When using multichannel audio, add a control for adjusting the
150 stereo width (from normal stereo to mono, all the way to
153 - Removed --http-coarse-timebase (it is now always on).
158 Nageru 1.7.2, April 28th, 2018
160 - Several improvements to video (FFmpeg) inputs: You can now use
161 them as audio sources, you can right-click on video channels
162 to change URL/filename on-the-fly, themes can ask for forced
163 disconnection (useful for network sources that are hanging),
164 and various other improvements. Be aware that the audio support
165 may still be somewhat rough, as A/V sync of arbitrary video
166 playout is a hard problem.
168 - The included themes have been fixed to properly make the returned
169 chain preparation functions independent of global state (e.g. if
170 the white balance for a channel was changed before the frame was
171 actually rendered). If you are using a custom theme, you may want
172 to apply similar fixes to it.
174 - In Metacube stream output, mark each keyframe with a pts metadata
175 block. This allows Cubemap 1.4.0 or newer to serve fMP4 fragments
176 for HLS from Nageru's output, without any further remuxing or
179 - If needed, Nageru will now automatically try to autodetect a
180 usable --va-display parameter by probing all DRM nodes for H.264
181 encoders. This removes the need to set --va-display in almost all
182 cases, and also removes the dependency on libpci.
184 - For GPUs that support querying available memory (in practice only
185 NVIDIA GPUs at the current time), expose the amount of used/total
186 GPU memory both on standard output and in the Prometheus metrics
187 (as well as included Grafana dashboard).
189 - The Grafana dashboard now supports heatmaps for the chosen x264
190 speedcontrol preset (requires Grafana 5.1 or newer). (There used to
191 be a heatmap earlier, but it was all broken.)
196 Nageru 1.7.1, March 26th, 2018
198 - Various bugfixes, mostly related to HTML and video inputs.
201 Nageru 1.7.0, March 8th, 2018
203 - Support for HTML5 graphics directly in Nageru, through CEF
204 (Chromium Embedded Framework). This performs better and is more
205 flexible than integrating with CasparCG over a socket. Note that
206 CEF is an optional component; see the documentation for more
209 - Add an HTTP endpoint for enumerating channels and one for getting
210 only their colors. Intended for remote tally applications;
211 set the documentation.
213 - Add a video grid display that removes the audio controls and shows
214 the video channels only, potentially in multiple rows if that makes
215 for a larger viewing area.
217 - Themes can now present simple menus in the Nageru UI. See the
218 documentation for more information.
223 Nageru 1.6.4, January 25th, 2018
225 - Fix compilation with the upcoming FFmpeg 3.5.
227 - Switch to LuaJIT for the theme engine, which is faster.
229 - Various bugfixes and smaller optimizations.
232 Nageru 1.6.3, November 8th, 2017
234 - Add quick-cut keys (Q, W, E, etc.) below the preview keys.
235 Since it's easy to hit these by accident and put up a signal
236 you didn't want, they are disabled by default (they can be
237 enabled in the video menu, or with the command line flag
240 - Rework the x264 speedcontrol presets to better match newer
243 - Add an option for changing the HTTP port (--http-port).
245 - Various smaller bug and integration fixes.
248 Nageru 1.6.2, July 16th, 2017
250 - Various smaller Kaeru fixes, mostly around metrics. Also,
251 you can now adjust the x264 bitrate in Kaeru (in 100 kbit/sec
252 increments) by sending SIGUSR1 (higher) or SIGUSR2 (lower).
255 Nageru 1.6.1, July 9th, 2017
257 - Add native export of Prometheus metrics.
259 - Rework the frame queue drop algorithm. The new one should handle tricky
260 situations much better, especially when a card is drifting very slowly
261 against the master timer.
263 - Add Kaeru, an experimental transcoding tool based on Nageru code.
264 Kaeru can run headless on a server without a GPU to transcode a
265 Nageru stream into a lower-bitrate one, replacing VLC.
267 - Work around a bug in some versions of NVIDIA's OpenGL drivers that would
268 crash Nageru after about three hours (fix in cooperation with Movit).
270 - Fix a crash with i965-va-driver 1.8.x.
272 - Reduce mutex contention in certain critical places, causing lower tail
273 latency in the mixer.
276 Nageru 1.6.0, May 29th, 2017
278 - Add support for having videos (from file or from URL) as a separate
279 input channels, albeit with some limitations. Apart from the obvious use of
280 looping pause clips or similar, this can be used to integrate with CasparCG;
281 see the manual for more details.
283 - Add a frame analyzer (accessible from the Video menu) containing an
284 RGB histogram and a color dropped tool. This is useful in calibrating
285 video chains by playing back a known signal. Note that this adds a
286 dependency on QCustomPlot.
288 - Allow overriding Y'CbCr input interpretation, for inputs that don't
289 use the correct settings. Also, Rec. 601 is now used by default instead
290 of Rec. 709 for SD resolutions.
292 - Support other sample rates than 48000 Hz from bmusb.
295 Nageru 1.5.0, April 5th, 2017
297 - Support for low-latency HDMI/SDI output in addition to (or instead of) the
298 stream. This currently only works with DeckLink cards, not bmusb. See the
299 manual for more information.
301 - Support changing the resolution from the command line, instead of locking
302 everything to 1280x720.
304 - The A/V sync code has been rewritten to be more in line with Fons
305 Adriaensen's original paper. It handles several cases much better,
306 in particular when trying to match 59.94 and 60 Hz sources to each other.
307 However, it might occasionally need a few extra seconds on startup to
308 lock properly if startup is slow.
310 - Add support for using x264 for the disk recording. This makes it possible,
311 among other things, to run Nageru on a machine entirely without VA-API
314 - Support for 10-bit Y'CbCr, both on input and output. (Output requires
315 x264 disk recording, as Quick Sync Video does not support 10-bit H.264.)
316 This requires compute shader support, and is in general a little bit
317 slower on input and output, due to the extra amount of data being shuffled
318 around. Intermediate precision is 16-bit floating-point or better,
321 - Enable input mode autodetection for DeckLink cards that support it.
322 (bmusb mode has always been autodetected.)
324 - Add functionality to add a time code to the stream; useful for debugging
327 - The live display is now both more performant and of higher image quality.
329 - Fix a long-standing issue where the preview displays would be too bright
330 when using an NVIDIA GPU. (This did not affect the finished stream.)
332 - Many other bugfixes and small improvements.
335 Nageru 1.4.2, November 24th, 2016
337 - Fix a thread race that would sometimes cause x264 streaming to go awry.
340 Nageru 1.4.1, November 6th, 2016
345 Nageru 1.4.0, October 26th, 2016
347 - Support for multichannel (or more accurately, multi-bus) audio,
348 choosable from the UI or using the --multichannel command-line
349 flag. In multichannel mode, you can take in inputs from multiple
350 different sources (or different channels on the same source, for
351 multichannel sound cards), apply effects to them separately and then
352 mix them together. This includes both audio from the video cards
353 as well as ALSA inputs, including hotplug. Ola Gundelsby contributed
354 invaluable feedback on this feature throughout the entire
357 - Support for having MIDI controllers control various aspects of the
358 audio UI, with relatively flexible mapping. Note that different
359 MIDI controllers can vary significantly in what protocol they speak,
360 so Nageru will not necessarily work with all. (The primary testing
361 controller has been the Akai MIDImix, and a pre-made mapping for
362 that is included. The Korg nanoKONTROL2 has also been tested and
363 works, but it requires some Korg-specific SysEx commands to make
364 the buttons and lights work.)
366 - Add a disk space indicator to the main window.
368 - Various bugfixes. In particular, an issue where the audio would pitch
369 up sharply after a series of many dropped frames has been fixed.
372 Nageru 1.3.4, August 2nd, 2016
377 Nageru 1.3.3, July 27th, 2016
379 - Various changes to make distribution packaging easier; in particular,
380 theme data can be picked up from /usr/local/share/nageru.
382 - Fix various FFmpeg deprecation warnings, now that we need FFmpeg
383 3.1 for other reasons anyway.
386 Nageru 1.3.2, July 23rd, 2016
388 - Allow limited hotplugging (unplugging and replugging) of USB cards.
389 You can use the new command-line option --num-fake-cards (-C) to add
390 fake cards that show only a single color and that will be replaced
391 by real cards as you plug them in; you can also unplug cards and have
392 them be replaced by fake cards. Fake cards can also be used for testing
393 Nageru without actually having any video cards available.
395 - Add Metacube timestamping of every keyframe, for easier detection of
396 streams not keeping up. Works with the new timestamp feature of
397 Cubemap 1.3.1. Will be ignored (save for some logging) in older
400 - The included default theme has been reworked and cleaned up to be
401 more understandable and extensible.
403 - Add more command-line options for initial audio setup.
406 Nageru 1.3.1, July 1st, 2016
408 - Various display bugfixes.
411 Nageru 1.3.0, June 26th, 2016
413 - It is now possible, given enough CPU power (e.g., a quad-core Haswell or
414 faster desktop CPU), to output a stream that is suitable for streaming
415 directly to end users without further transcoding. In particular, this
416 includes support for encoding the network stream with x264 (the stream
417 saved to disk is still done using Quick Sync), for Metacube framing (for
418 streaming to the Cubemap reflector), and for choosing the network stream
419 mux. For more information, see the README.
421 - Add a flag (--disable-alsa-output) to disable ALSA monitoring output.
423 - Do texture uploads from the main thread instead of from separate threads;
424 may or may not improve stability with NVIDIA's proprietary drivers.
426 - When beginning a new video segment, the shutdown of the old encoder
427 is now done in a background thread, in order to not disturb the external
428 stream. The audio still goes into a somewhat random stream, though.
430 - You can now override the default stream-to-card mapping with --map-signal=
433 - Nageru now tries to lock itself into RAM if it has the permissions to do
434 so, for better realtime behavior. (Writing the stream to disk tends to
435 fill the buffer cache, eventually paging less-used parts of Nageru out.)
437 - Various fixes for deadlocks, memory leaks, and many other errors.
440 Nageru 1.2.1, April 15th, 2016
442 - Images are now updated from disk about every second, so that it is possible
443 to update e.g. overlays during streaming, although somewhat slowly.
445 - Fix support for PNG images.
447 - You can now send SIGHUP to start a new cut instead of using the menu.
449 - Added a --help option.
451 - Various tweaks to OpenGL fence handling.
454 Nageru 1.2.0, April 6th, 2016
456 - Support for Blackmagic's PCI and Thunderbolt cards, using the official
457 (closed-source) Blackmagic drivers. (You do not need the SDK installed, though.)
458 You can use PCI and USB cards pretty much interchangeably.
460 - Much more stable handling of frame queues on non-master cards. In particular,
461 you can have a master card on 50 Hz and another card on 60 Hz without getting
462 lots of warning messages and a 10+ frame latency on the second card.
464 - Many new options in the right click menu on cards: Adjustable video inputs,
465 adjustable audio inputs, adjustable resolutions, ability to select card for
468 - Add support for starting with almost all audio processing turned off
471 - The UI now marks inputs with red or green to mark them as participating in
472 the live or preview signal, respectively. Red takes priority. (Actually,
473 it merely asks the theme for a color for each input; the theme contains
476 - Add support for uncompressed video instead of H.264 on the HTTP server,
477 while still storing H.264 to files (--http-uncompressed-video). Note that
478 depending on your client, this might not actually be more CPU efficient
479 even on localhost, so be sure to check.
481 - Add a simpler, less featureful theme (simple.lua) that should be easier to
482 understand for beginners. Themes are now also choosable with -t on the command
485 - Too many bugfixes and small tweaks to list. In particular, many memory leaks
486 in the streaming part have been identified and fixed.
489 Nageru 1.1.0, February 24th, 2016
491 - Support doing the H.264 encoding on a different graphics device from the one
492 doing the mixing. In particular, this makes it possible to use Nageru on an
493 NVIDIA GPU while still encoding H.264 video using Intel Quick Sync (NVENC
494 is not supported yet) -- it is less efficient since the data needs to be read
495 back via the CPU, but the NVIDIA cards and drivers are so much faster that it
496 doesn't really matter. Tested on a GTX 950 with the proprietary drivers.
498 - In the included example theme, fix fading to/from deinterlaced sources.
500 - Various smaller compilation, distribution and documentation fixes.
503 Nageru 1.0.0, January 30th, 2016