-A particular note about the MP4 mux: If you plan to stream for long periods
-continuously (more than about 12–24 hours), the 32-bit timestamps may wrap
-around with the default timebase Nageru is using. If so, please add the
-“--http-coarse-timebase” flag.
-
-
-.. _kaeru:
-
-Transcoding with Kaeru
-----------------------
-
-There is a third option that combines elements from the two previous
-approaches: Nageru includes **Kaeru**, named after the
-Japanese verb *kaeru* (換える), meaning roughly to replace or exchange.
-Kaeru is a command-line tool that is designed to transcode Nageru's streams.
-In that aspect, it is similar to using VLC as described in the section on
-:ref:`transcoded streaming <transcoded-streaming>`. However, since it reuses
-Nageru's decoding and encoding code, it can do almost everything you can do
-with :ref:`direct encoding <direct-encoding>`, including x264 speed control
-and Metacube output (see the section on :ref:`Cubemap integration <cubemap>` below).
-
-Using Kaeru is similar to launching Nageru, e.g. to rescale a stream to 848x480::
-
- ./kaeru -w 848 -h 480 --http-mux mp4 --http-audio-codec libfdk_aac --http-audio-bitrate 128 \
- http://yourserver.example.org:9095/stream.nut
-
-Unlike the VLC option, Kaeru will automatically reconnect if the source goes
-away, so you do not need a while loop. Note that if you want to keep the audio
-unchanged (usually audio is more important than video, so it's not uncommon to
-want to transcode video but not audio), you can do so with the flag
-*--no-transcode-audio* flag.
-
-There are some things you should keep in mind about Kaeru:
-
- - Kaeru does not use the GPU; it uses FFmpeg's code for scaling and colorspace
- conversion. This yields somewhat lower scaling quality and uses more CPU power,
- but means you can run it on a headless server.
- - There is no support for encoding using Quick Sync Video, since this depends on the GPU.
- - 10-bit output is currently not supported.
-