that comes with Futatabi), it is capable of sending all of its cameras as one
video stream (see :ref:`futatabiformat`), so you can start Futatabi with
- ./futatabi http://nageru-server.example.org/multicam.mp4
+ ./futatabi http://nageru-server.example.org:9095/multicam.mp4
If you do not have a running Nageru installation, see :ref:`sampledata`.
be able to request replays of specific events, or ask you to save something
for later if they can't show it right now (e.g. a foul situation that wasn't called).
+Audio support
+'''''''''''''
+
+Since version 1.8.5, Futatabi has limited audio support. It is recorded
+(assuming Nageru is also at version 1.8.5 or newer) and saved for all inputs,
+and played back when showing a replay, but only when the replay speed is at
+100%, or very close to it. (At other speeds, you will get silence.)
+Furthermore, there is no local audio output; the Futatabi operator will not
+hear any audio, unless they use a video player into the Futatabi stream locally
+(with associated delay). All of this may change in the future.
+
+
+White balance
+'''''''''''''
+
+Since version 1.9.2, Futatabi will integrate with Nageru for white balance;
+the white balance set in Nageru will be recorded, and properly applied on
+playback (including fades). Note that this assumes you are using the built-in
+white balance adjustment (new in 1.9.2), not adding WhiteBalanceEffect manually
+to the scene; see :ref:`white-balance` for an example.
+
+
Replay workflows
----------------
There are two files:
- * `Trøndisk 2018, semifinal only (MJPEG, 77 GB) <https://storage.sesse.net/trondisk2018-semifinal-multicam-mjpeg.mkv>`_:
- One of the semifinals, in MJPEG format (about 30 minutes). This can be downloaded
- and then fed directly to Nageru as if it were a real camera stream
+ * `Trøndisk 2018, final only (MJPEG, 126 GB) <https://storage.sesse.net/trondisk2018-final-multicam-mjpeg.mkv>`_:
+ The final match, in MJPEG format (about 73 minutes). This can be downloaded
+ and then fed directly to Futatabi as if it were a real camera stream
(remember the --slow-down-input option).
* `Trøndisk 2018, entire tournament (H.264, 74 GB) <https://storage.sesse.net/trondisk2018-multicam-h264.mp4>`_:
The entire first part of the tournament,
the actual RGB color space; Nageru assumes it is Rec. 709, like for capture
cards, but the differences between 601 and 709 here are small. sRGB gamma
is assumed throughout, like in JFIF.)
+ * The white balance (gray point) is stored in a minimal EXIF header,
+ and echoed back for original and interpolated frames. (During fades, Futatabi
+ applies white balance itself, and does not require gray point adjustment
+ from the client.)
Many players may also be confused by the fact that the resolution can change
from frame to frame; this is because for original (uninterpolated) frames,