1 Nageru 1.6.2, July 16th, 2017
3 - Various smaller Kaeru fixes, mostly around metrics. Also,
4 you can now adjust the x264 bitrate in Kaeru (in 100 kbit/sec
5 increments) by sending SIGUSR1 (higher) or SIGUSR2 (lower).
8 Nageru 1.6.1, July 9th, 2017
10 - Add native export of Prometheus metrics.
12 - Rework the frame queue drop algorithm. The new one should handle tricky
13 situations much better, especially when a card is drifting very slowly
14 against the master timer.
16 - Add Kaeru, an experimental transcoding tool based on Nageru code.
17 Kaeru can run headless on a server without a GPU to transcode a
18 Nageru stream into a lower-bitrate one, replacing VLC.
20 - Work around a bug in some versions of NVIDIA's OpenGL drivers that would
21 crash Nageru after about three hours (fix in cooperation with Movit).
23 - Fix a crash with i965-va-driver 1.8.x.
25 - Reduce mutex contention in certain critical places, causing lower tail
29 Nageru 1.6.0, May 29th, 2017
31 - Add support for having videos (from file or from URL) as a separate
32 input channels, albeit with some limitations. Apart from the obvious use of
33 looping pause clips or similar, this can be used to integrate with CasparCG;
34 see the manual for more details.
36 - Add a frame analyzer (accessible from the Video menu) containing an
37 RGB histogram and a color dropped tool. This is useful in calibrating
38 video chains by playing back a known signal. Note that this adds a
39 dependency on QCustomPlot.
41 - Allow overriding Y'CbCr input interpretation, for inputs that don't
42 use the correct settings. Also, Rec. 601 is now used by default instead
43 of Rec. 709 for SD resolutions.
45 - Support other sample rates than 48000 Hz from bmusb.
48 Nageru 1.5.0, April 5th, 2017
50 - Support for low-latency HDMI/SDI output in addition to (or instead of) the
51 stream. This currently only works with DeckLink cards, not bmusb. See the
52 manual for more information.
54 - Support changing the resolution from the command line, instead of locking
55 everything to 1280x720.
57 - The A/V sync code has been rewritten to be more in line with Fons
58 Adriaensen's original paper. It handles several cases much better,
59 in particular when trying to match 59.94 and 60 Hz sources to each other.
60 However, it might occasionally need a few extra seconds on startup to
61 lock properly if startup is slow.
63 - Add support for using x264 for the disk recording. This makes it possible,
64 among other things, to run Nageru on a machine entirely without VA-API
67 - Support for 10-bit Y'CbCr, both on input and output. (Output requires
68 x264 disk recording, as Quick Sync Video does not support 10-bit H.264.)
69 This requires compute shader support, and is in general a little bit
70 slower on input and output, due to the extra amount of data being shuffled
71 around. Intermediate precision is 16-bit floating-point or better,
74 - Enable input mode autodetection for DeckLink cards that support it.
75 (bmusb mode has always been autodetected.)
77 - Add functionality to add a time code to the stream; useful for debugging
80 - The live display is now both more performant and of higher image quality.
82 - Fix a long-standing issue where the preview displays would be too bright
83 when using an NVIDIA GPU. (This did not affect the finished stream.)
85 - Many other bugfixes and small improvements.
88 Nageru 1.4.2, November 24th, 2016
90 - Fix a thread race that would sometimes cause x264 streaming to go awry.
93 Nageru 1.4.1, November 6th, 2016
98 Nageru 1.4.0, October 26th, 2016
100 - Support for multichannel (or more accurately, multi-bus) audio,
101 choosable from the UI or using the --multichannel command-line
102 flag. In multichannel mode, you can take in inputs from multiple
103 different sources (or different channels on the same source, for
104 multichannel sound cards), apply effects to them separately and then
105 mix them together. This includes both audio from the video cards
106 as well as ALSA inputs, including hotplug. Ola Gundelsby contributed
107 invaluable feedback on this feature throughout the entire
110 - Support for having MIDI controllers control various aspects of the
111 audio UI, with relatively flexible mapping. Note that different
112 MIDI controllers can vary significantly in what protocol they speak,
113 so Nageru will not necessarily work with all. (The primary testing
114 controller has been the Akai MIDImix, and a pre-made mapping for
115 that is included. The Korg nanoKONTROL2 has also been tested and
116 works, but it requires some Korg-specific SysEx commands to make
117 the buttons and lights work.)
119 - Add a disk space indicator to the main window.
121 - Various bugfixes. In particular, an issue where the audio would pitch
122 up sharply after a series of many dropped frames has been fixed.
125 Nageru 1.3.4, August 2nd, 2016
130 Nageru 1.3.3, July 27th, 2016
132 - Various changes to make distribution packaging easier; in particular,
133 theme data can be picked up from /usr/local/share/nageru.
135 - Fix various FFmpeg deprecation warnings, now that we need FFmpeg
136 3.1 for other reasons anyway.
139 Nageru 1.3.2, July 23rd, 2016
141 - Allow limited hotplugging (unplugging and replugging) of USB cards.
142 You can use the new command-line option --num-fake-cards (-C) to add
143 fake cards that show only a single color and that will be replaced
144 by real cards as you plug them in; you can also unplug cards and have
145 them be replaced by fake cards. Fake cards can also be used for testing
146 Nageru without actually having any video cards available.
148 - Add Metacube timestamping of every keyframe, for easier detection of
149 streams not keeping up. Works with the new timestamp feature of
150 Cubemap 1.3.1. Will be ignored (save for some logging) in older
153 - The included default theme has been reworked and cleaned up to be
154 more understandable and extensible.
156 - Add more command-line options for initial audio setup.
159 Nageru 1.3.1, July 1st, 2016
161 - Various display bugfixes.
164 Nageru 1.3.0, June 26th, 2016
166 - It is now possible, given enough CPU power (e.g., a quad-core Haswell or
167 faster desktop CPU), to output a stream that is suitable for streaming
168 directly to end users without further transcoding. In particular, this
169 includes support for encoding the network stream with x264 (the stream
170 saved to disk is still done using Quick Sync), for Metacube framing (for
171 streaming to the Cubemap reflector), and for choosing the network stream
172 mux. For more information, see the README.
174 - Add a flag (--disable-alsa-output) to disable ALSA monitoring output.
176 - Do texture uploads from the main thread instead of from separate threads;
177 may or may not improve stability with NVIDIA's proprietary drivers.
179 - When beginning a new video segment, the shutdown of the old encoder
180 is now done in a background thread, in order to not disturb the external
181 stream. The audio still goes into a somewhat random stream, though.
183 - You can now override the default stream-to-card mapping with --map-signal=
186 - Nageru now tries to lock itself into RAM if it has the permissions to do
187 so, for better realtime behavior. (Writing the stream to disk tends to
188 fill the buffer cache, eventually paging less-used parts of Nageru out.)
190 - Various fixes for deadlocks, memory leaks, and many other errors.
193 Nageru 1.2.1, April 15th, 2016
195 - Images are now updated from disk about every second, so that it is possible
196 to update e.g. overlays during streaming, although somewhat slowly.
198 - Fix support for PNG images.
200 - You can now send SIGHUP to start a new cut instead of using the menu.
202 - Added a --help option.
204 - Various tweaks to OpenGL fence handling.
207 Nageru 1.2.0, April 6th, 2016
209 - Support for Blackmagic's PCI and Thunderbolt cards, using the official
210 (closed-source) Blackmagic drivers. (You do not need the SDK installed, though.)
211 You can use PCI and USB cards pretty much interchangeably.
213 - Much more stable handling of frame queues on non-master cards. In particular,
214 you can have a master card on 50 Hz and another card on 60 Hz without getting
215 lots of warning messages and a 10+ frame latency on the second card.
217 - Many new options in the right click menu on cards: Adjustable video inputs,
218 adjustable audio inputs, adjustable resolutions, ability to select card for
221 - Add support for starting with almost all audio processing turned off
224 - The UI now marks inputs with red or green to mark them as participating in
225 the live or preview signal, respectively. Red takes priority. (Actually,
226 it merely asks the theme for a color for each input; the theme contains
229 - Add support for uncompressed video instead of H.264 on the HTTP server,
230 while still storing H.264 to files (--http-uncompressed-video). Note that
231 depending on your client, this might not actually be more CPU efficient
232 even on localhost, so be sure to check.
234 - Add a simpler, less featureful theme (simple.lua) that should be easier to
235 understand for beginners. Themes are now also choosable with -t on the command
238 - Too many bugfixes and small tweaks to list. In particular, many memory leaks
239 in the streaming part have been identified and fixed.
242 Nageru 1.1.0, February 24th, 2016
244 - Support doing the H.264 encoding on a different graphics device from the one
245 doing the mixing. In particular, this makes it possible to use Nageru on an
246 NVIDIA GPU while still encoding H.264 video using Intel Quick Sync (NVENC
247 is not supported yet) -- it is less efficient since the data needs to be read
248 back via the CPU, but the NVIDIA cards and drivers are so much faster that it
249 doesn't really matter. Tested on a GTX 950 with the proprietary drivers.
251 - In the included example theme, fix fading to/from deinterlaced sources.
253 - Various smaller compilation, distribution and documentation fixes.
256 Nageru 1.0.0, January 30th, 2016