X-Git-Url: https://git.sesse.net/?p=cubemap;a=blobdiff_plain;f=README;h=e9520d3aec889da9e53f9bad82f69352024080c3;hp=4410010d148cde515898ffb7af9b49ddff91a97b;hb=68f9976b9258796daf49124b7f31a67a18b98513;hpb=4cb5673a180d4a963f4d9404ebf4905e7131d30e diff --git a/README b/README index 4410010..e9520d3 100644 --- a/README +++ b/README @@ -1,37 +1,48 @@ Cubemap is a high-performance, high-availability video reflector, -specifically made for use with VLC. It is currently in alpha stage. +specifically made for use with VLC. A short list of features: - High-performance, through a design with multiple worker threads, epoll and sendfile (yes, sendfile); a 2GHz quadcore can saturate - 10 gigabit Ethernet, given a modern kernel, a modern NIC - and the right kernel tuning. + 10 gigabit Ethernet (even with TLS) given a modern kernel. - High-availability. You can change any part of the configuration (and even upgrade to a newer version of Cubemap) by changing cubemap.config and sending a SIGHUP; all clients will continue as if nothing had happened (unless you delete the stream they are watching, of course). Cubemap also survives the encoder dying and reconnecting. - - Per-stream fwmark support, for TCP pacing through tc (separate config needed). + - Support for setting max pacing rate through the fq packet scheduler + (depends on Linux 3.13 or newer). - Reflects anything VLC can reflect over HTTP, even the muxes VLC has problems reflecting itself (in particular, FLV). + - Multicast support, both for sending and receiving (supports only protocols + that can go over UDP, e.g. MPEG-TS). Supports both ASM and SSM. + - TLS output support, through the TLSe library (requires libtomcrypt) + and the Linux kernel's kTLS (Linux 4.17 or newer). There are a few + limitations; see below. + - fMP4 (HLS) output support, generating playlists on-the-fly. Note that this + requires some extra metadata currently only set by Nageru (not VLC). - IPv4 support. Yes, Cubemap even supports (some) legacy protocols. HOWTO: - sudo aptitude install libprotobuf-dev protobuf-compiler + sudo apt install libprotobuf-dev protobuf-compiler libsystemd-dev libtomcrypt-dev + ./configure make -j4 -If you want to use HTTP input (you probably want to), patch VLC with the -included file vlc-metacube.diff. Then start the VLC encoder with the -“metacube” flag to the http access mux, like this: +If you want to use HTTP input (you probably want to), you want VLC 2.2.0 +or newer. Then start the VLC encoder with the “metacube” flag to the http +access mux, like this: cvlc [...] --sout '#std{access=http{metacube,mime=video/x-flv},mux=flv,dst=:4013/test.flv}' Then look through cubemap.config.sample, copy it to cubemap.config, compile and start cubemap. +Nageru, my free video mixer, can also produce Metacube streams natively. +See the manual at https://nageru.sesse.net/doc/ for more information. + To upgrade cubemap (after you've compiled a new binary), or to pick up new config: @@ -42,7 +53,39 @@ are OK, and then exec() the new version, which deserializes everything and keeps going. +Notes on TLS support: + +Cubemap supports TLS on output, so that you can play video on TLS +web sites without issues with mixed content. TLS on input streams is +not (yet) supported. + +TLS requires kTLS for both send and receive, ie., Linux >= 4.17 with CONFIG_TLS +enabled. Only cipher suites supported by kTLS is supposed, ie., AES-128-GCM +(if no such cipher suite is available, the connection will be aborted). If the +server is restarted before the key exchange for a connection is completed, +that connection will not survive the restart, unlike all other connections. +(This is a TLSe limitation.) You can have different certificates on different +ports (and have separate ports for TLS and non-TLS), but SNI is not yet +supported. + + +Munin plugins: + +To activate these, symlink them into /etc/munin/plugins. If you don't put +the files in the expected default locations (as done by 'make install'), +you probably want some configuration in /etc/munin/plugin-conf.d/cubemap or +similar, like this: + +[cubemap*] +user +env.cubemap_config /etc/cubemap/cubemap.config +env.cubemap_stats /var/lib/cubemap/cubemap.stats +env.cubemap_input_stats /var/lib/cubemap/cubemap-input.stats + + Legalese: -Copyright 2013 Steinar H. Gunderson . +Copyright 2013 Steinar H. Gunderson . Licensed under the GNU GPL, version 2. See the included COPYING file. + +See tlse/LICENSE for TLSe licensing.