1 Nageru 1.7.1, March 26th, 2018
3 - Various bugfixes, mostly related to HTML and video inputs.
6 Nageru 1.7.0, March 8th, 2018
8 - Support for HTML5 graphics directly in Nageru, through CEF
9 (Chromium Embedded Framework). This performs better and is more
10 flexible than integrating with CasparCG over a socket. Note that
11 CEF is an optional component; see the documentation for more
14 - Add an HTTP endpoint for enumerating channels and one for getting
15 only their colors. Intended for remote tally applications;
16 set the documentation.
18 - Add a video grid display that removes the audio controls and shows
19 the video channels only, potentially in multiple rows if that makes
20 for a larger viewing area.
22 - Themes can now present simple menus in the Nageru UI. See the
23 documentation for more information.
28 Nageru 1.6.4, January 25th, 2018
30 - Fix compilation with the upcoming FFmpeg 3.5.
32 - Switch to LuaJIT for the theme engine, which is faster.
34 - Various bugfixes and smaller optimizations.
37 Nageru 1.6.3, November 8th, 2017
39 - Add quick-cut keys (Q, W, E, etc.) below the preview keys.
40 Since it's easy to hit these by accident and put up a signal
41 you didn't want, they are disabled by default (they can be
42 enabled in the video menu, or with the command line flag
45 - Rework the x264 speedcontrol presets to better match newer
48 - Add an option for changing the HTTP port (--http-port).
50 - Various smaller bug and integration fixes.
53 Nageru 1.6.2, July 16th, 2017
55 - Various smaller Kaeru fixes, mostly around metrics. Also,
56 you can now adjust the x264 bitrate in Kaeru (in 100 kbit/sec
57 increments) by sending SIGUSR1 (higher) or SIGUSR2 (lower).
60 Nageru 1.6.1, July 9th, 2017
62 - Add native export of Prometheus metrics.
64 - Rework the frame queue drop algorithm. The new one should handle tricky
65 situations much better, especially when a card is drifting very slowly
66 against the master timer.
68 - Add Kaeru, an experimental transcoding tool based on Nageru code.
69 Kaeru can run headless on a server without a GPU to transcode a
70 Nageru stream into a lower-bitrate one, replacing VLC.
72 - Work around a bug in some versions of NVIDIA's OpenGL drivers that would
73 crash Nageru after about three hours (fix in cooperation with Movit).
75 - Fix a crash with i965-va-driver 1.8.x.
77 - Reduce mutex contention in certain critical places, causing lower tail
81 Nageru 1.6.0, May 29th, 2017
83 - Add support for having videos (from file or from URL) as a separate
84 input channels, albeit with some limitations. Apart from the obvious use of
85 looping pause clips or similar, this can be used to integrate with CasparCG;
86 see the manual for more details.
88 - Add a frame analyzer (accessible from the Video menu) containing an
89 RGB histogram and a color dropped tool. This is useful in calibrating
90 video chains by playing back a known signal. Note that this adds a
91 dependency on QCustomPlot.
93 - Allow overriding Y'CbCr input interpretation, for inputs that don't
94 use the correct settings. Also, Rec. 601 is now used by default instead
95 of Rec. 709 for SD resolutions.
97 - Support other sample rates than 48000 Hz from bmusb.
100 Nageru 1.5.0, April 5th, 2017
102 - Support for low-latency HDMI/SDI output in addition to (or instead of) the
103 stream. This currently only works with DeckLink cards, not bmusb. See the
104 manual for more information.
106 - Support changing the resolution from the command line, instead of locking
107 everything to 1280x720.
109 - The A/V sync code has been rewritten to be more in line with Fons
110 Adriaensen's original paper. It handles several cases much better,
111 in particular when trying to match 59.94 and 60 Hz sources to each other.
112 However, it might occasionally need a few extra seconds on startup to
113 lock properly if startup is slow.
115 - Add support for using x264 for the disk recording. This makes it possible,
116 among other things, to run Nageru on a machine entirely without VA-API
119 - Support for 10-bit Y'CbCr, both on input and output. (Output requires
120 x264 disk recording, as Quick Sync Video does not support 10-bit H.264.)
121 This requires compute shader support, and is in general a little bit
122 slower on input and output, due to the extra amount of data being shuffled
123 around. Intermediate precision is 16-bit floating-point or better,
126 - Enable input mode autodetection for DeckLink cards that support it.
127 (bmusb mode has always been autodetected.)
129 - Add functionality to add a time code to the stream; useful for debugging
132 - The live display is now both more performant and of higher image quality.
134 - Fix a long-standing issue where the preview displays would be too bright
135 when using an NVIDIA GPU. (This did not affect the finished stream.)
137 - Many other bugfixes and small improvements.
140 Nageru 1.4.2, November 24th, 2016
142 - Fix a thread race that would sometimes cause x264 streaming to go awry.
145 Nageru 1.4.1, November 6th, 2016
150 Nageru 1.4.0, October 26th, 2016
152 - Support for multichannel (or more accurately, multi-bus) audio,
153 choosable from the UI or using the --multichannel command-line
154 flag. In multichannel mode, you can take in inputs from multiple
155 different sources (or different channels on the same source, for
156 multichannel sound cards), apply effects to them separately and then
157 mix them together. This includes both audio from the video cards
158 as well as ALSA inputs, including hotplug. Ola Gundelsby contributed
159 invaluable feedback on this feature throughout the entire
162 - Support for having MIDI controllers control various aspects of the
163 audio UI, with relatively flexible mapping. Note that different
164 MIDI controllers can vary significantly in what protocol they speak,
165 so Nageru will not necessarily work with all. (The primary testing
166 controller has been the Akai MIDImix, and a pre-made mapping for
167 that is included. The Korg nanoKONTROL2 has also been tested and
168 works, but it requires some Korg-specific SysEx commands to make
169 the buttons and lights work.)
171 - Add a disk space indicator to the main window.
173 - Various bugfixes. In particular, an issue where the audio would pitch
174 up sharply after a series of many dropped frames has been fixed.
177 Nageru 1.3.4, August 2nd, 2016
182 Nageru 1.3.3, July 27th, 2016
184 - Various changes to make distribution packaging easier; in particular,
185 theme data can be picked up from /usr/local/share/nageru.
187 - Fix various FFmpeg deprecation warnings, now that we need FFmpeg
188 3.1 for other reasons anyway.
191 Nageru 1.3.2, July 23rd, 2016
193 - Allow limited hotplugging (unplugging and replugging) of USB cards.
194 You can use the new command-line option --num-fake-cards (-C) to add
195 fake cards that show only a single color and that will be replaced
196 by real cards as you plug them in; you can also unplug cards and have
197 them be replaced by fake cards. Fake cards can also be used for testing
198 Nageru without actually having any video cards available.
200 - Add Metacube timestamping of every keyframe, for easier detection of
201 streams not keeping up. Works with the new timestamp feature of
202 Cubemap 1.3.1. Will be ignored (save for some logging) in older
205 - The included default theme has been reworked and cleaned up to be
206 more understandable and extensible.
208 - Add more command-line options for initial audio setup.
211 Nageru 1.3.1, July 1st, 2016
213 - Various display bugfixes.
216 Nageru 1.3.0, June 26th, 2016
218 - It is now possible, given enough CPU power (e.g., a quad-core Haswell or
219 faster desktop CPU), to output a stream that is suitable for streaming
220 directly to end users without further transcoding. In particular, this
221 includes support for encoding the network stream with x264 (the stream
222 saved to disk is still done using Quick Sync), for Metacube framing (for
223 streaming to the Cubemap reflector), and for choosing the network stream
224 mux. For more information, see the README.
226 - Add a flag (--disable-alsa-output) to disable ALSA monitoring output.
228 - Do texture uploads from the main thread instead of from separate threads;
229 may or may not improve stability with NVIDIA's proprietary drivers.
231 - When beginning a new video segment, the shutdown of the old encoder
232 is now done in a background thread, in order to not disturb the external
233 stream. The audio still goes into a somewhat random stream, though.
235 - You can now override the default stream-to-card mapping with --map-signal=
238 - Nageru now tries to lock itself into RAM if it has the permissions to do
239 so, for better realtime behavior. (Writing the stream to disk tends to
240 fill the buffer cache, eventually paging less-used parts of Nageru out.)
242 - Various fixes for deadlocks, memory leaks, and many other errors.
245 Nageru 1.2.1, April 15th, 2016
247 - Images are now updated from disk about every second, so that it is possible
248 to update e.g. overlays during streaming, although somewhat slowly.
250 - Fix support for PNG images.
252 - You can now send SIGHUP to start a new cut instead of using the menu.
254 - Added a --help option.
256 - Various tweaks to OpenGL fence handling.
259 Nageru 1.2.0, April 6th, 2016
261 - Support for Blackmagic's PCI and Thunderbolt cards, using the official
262 (closed-source) Blackmagic drivers. (You do not need the SDK installed, though.)
263 You can use PCI and USB cards pretty much interchangeably.
265 - Much more stable handling of frame queues on non-master cards. In particular,
266 you can have a master card on 50 Hz and another card on 60 Hz without getting
267 lots of warning messages and a 10+ frame latency on the second card.
269 - Many new options in the right click menu on cards: Adjustable video inputs,
270 adjustable audio inputs, adjustable resolutions, ability to select card for
273 - Add support for starting with almost all audio processing turned off
276 - The UI now marks inputs with red or green to mark them as participating in
277 the live or preview signal, respectively. Red takes priority. (Actually,
278 it merely asks the theme for a color for each input; the theme contains
281 - Add support for uncompressed video instead of H.264 on the HTTP server,
282 while still storing H.264 to files (--http-uncompressed-video). Note that
283 depending on your client, this might not actually be more CPU efficient
284 even on localhost, so be sure to check.
286 - Add a simpler, less featureful theme (simple.lua) that should be easier to
287 understand for beginners. Themes are now also choosable with -t on the command
290 - Too many bugfixes and small tweaks to list. In particular, many memory leaks
291 in the streaming part have been identified and fixed.
294 Nageru 1.1.0, February 24th, 2016
296 - Support doing the H.264 encoding on a different graphics device from the one
297 doing the mixing. In particular, this makes it possible to use Nageru on an
298 NVIDIA GPU while still encoding H.264 video using Intel Quick Sync (NVENC
299 is not supported yet) -- it is less efficient since the data needs to be read
300 back via the CPU, but the NVIDIA cards and drivers are so much faster that it
301 doesn't really matter. Tested on a GTX 950 with the proprietary drivers.
303 - In the included example theme, fix fading to/from deinterlaced sources.
305 - Various smaller compilation, distribution and documentation fixes.
308 Nageru 1.0.0, January 30th, 2016