Transcoded streaming was the only option supported before 1.3.0,
and in many ways the conceptually simplest from Nageru's point of
view. In this mode, Nageru outputs its “digital intermediate”
Transcoded streaming was the only option supported before 1.3.0,
and in many ways the conceptually simplest from Nageru's point of
view. In this mode, Nageru outputs its “digital intermediate”
responsible for transcoding it into a format that is suitable
for streaming to clients. Thus, you can run Nageru on a regular
laptop and then use e.g. a short-term virtual machine in the cloud
responsible for transcoding it into a format that is suitable
for streaming to clients. Thus, you can run Nageru on a regular
laptop and then use e.g. a short-term virtual machine in the cloud
http://http://yourserver.example.org:9095/stream.nut vlc://quit \
--sout '#transcode{vcodec=h264,vb=1500,acodec=mp4a,aenc=fdkaac,ab=128}:std{mux=ffmpeg{mux=mp4},access=http{mime=video/mp4},dst=:1994}' \
--sout-avformat-options '{movflags=empty_moov+frag_keyframe+default_base_moof}' \
http://http://yourserver.example.org:9095/stream.nut vlc://quit \
--sout '#transcode{vcodec=h264,vb=1500,acodec=mp4a,aenc=fdkaac,ab=128}:std{mux=ffmpeg{mux=mp4},access=http{mime=video/mp4},dst=:1994}' \
--sout-avformat-options '{movflags=empty_moov+frag_keyframe+default_base_moof}' \
- --sout-x264-vbv-maxrate 1500 --sout-x264-vbv-bufsize 1500 --sout-mux-caching 3000 \
- --sout-x264-keyint 50 --sout-mux-caching 3000 \
- --sout-x264-tune film --sout-x264-preset slow
+ --sout-x264-vbv-maxrate 1500 --sout-x264-vbv-bufsize 1500 \
+ --sout-x264-keyint 50 --sout-x264-tune film --sout-x264-preset slow \
+ --sout-mux-caching 3000
--http-mux mp4 --http-audio-codec libfdk_aac --http-audio-bitrate 128
Note the use here of the MP4 mux and AAC audio. “libfdk_aac” signals
--http-mux mp4 --http-audio-codec libfdk_aac --http-audio-bitrate 128
Note the use here of the MP4 mux and AAC audio. “libfdk_aac” signals
from Android; it yields significantly better sound quality than e.g. FAAC,
and it is open source, but under a somewhat cumbersome license. For this
reason, most distributions do not compile FFmpeg with the FDK-AAC codec,
from Android; it yields significantly better sound quality than e.g. FAAC,
and it is open source, but under a somewhat cumbersome license. For this
reason, most distributions do not compile FFmpeg with the FDK-AAC codec,
There are many more parameters, in particular “--x264-bitrate” to control
the nominal bitrate (4500 kbit/sec per default, plus audio). Most of them
There are many more parameters, in particular “--x264-bitrate” to control
the nominal bitrate (4500 kbit/sec per default, plus audio). Most of them
-are usually fine at the default, though.
+are usually fine at the default, though. Note that you can change the
+x264 bitrate on-the-fly from the video menu; this is primarily useful
+if your network conditions change abruptly.
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
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