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