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Diffstat (limited to 'README.md')
| -rw-r--r-- | README.md | 60 |
1 files changed, 56 insertions, 4 deletions
@@ -10,6 +10,7 @@ Currently, the MIDIMonster supports the following protocols: * sACN / E1.31 * OSC * evdev input devices (Linux) +* Open Lighting Architecture (OLA) The MIDIMonster allows the user to translate any channel on one protocol into channel(s) on any other (or the same) supported protocol, for example to: @@ -48,18 +49,23 @@ on any other (or the same) supported protocol, for example to: - [Global configuration](#global-configuration-3) - [Instance configuration](#instance-configuration-3) - [Channel specification](#channel-specification-3) - - [Known bugs/problems](#known-bugs-problems) + - [Known bugs/problems](#known-bugs--problems-3) + [The `loopback` backend](#the-loopback-backend) - [Global configuration](#global-configuration-4) - [Instance configuration](#instance-configuration-4) - [Channel specification](#channel-specification-4) - - [Known bugs / problems](#known-bugs--problems-3) + - [Known bugs / problems](#known-bugs--problems-4) + [The `osc` backend](#the-osc-backend) - [Global configuration](#global-configuration-5) - [Instance configuration](#instance-configuration-5) - [Channel specification](#channel-specification-5) - [Supported types & value ranges](#supported-types--value-ranges) - - [Known bugs / problems](#known-bugs--problems-4) + - [Known bugs / problems](#known-bugs--problems-5) + + [The `ola` backend](#the-ola-backend) + - [Global configuration](#global-configuration-6) + - [Instance configuration](#instance-configuration-6) + - [Channel specification](#channel-specification-6) + - [Known bugs / problems](#known-bugs--problems-6) * [Building](#building) + [Prerequisites](#prerequisites) + [Build](#build) @@ -310,7 +316,7 @@ Note that to map an absolute axis on an output-enabled instance, additional info and maximum are required. These must be specified in the instance configuration. When only mapping the instance as a channel input, this is not required. -#### Known bugs/problems +#### Known bugs / problems Creating an `evdev` output device requires elevated privileges, namely, write access to the system's `/dev/uinput`. Usually, this is granted for users in the `input` group and the `root` user. @@ -439,6 +445,48 @@ The default ranges are: Ping requests are not yet answered. There may be some problems using broadcast output and input. +### The `ola` backend + +This backend connects the MIDIMonster to the Open Lighting Architecture daemon. This can be useful +to take advantage of additional protocols implemented in OLA. This backend is currently marked as +optional and is only built with `make full` in the `backends/` directory, as the OLA is a large +dependency to require for all users. + +#### Global configuration + +This backend does not take any global configuration. + +#### Instance configuration + +| Option | Example value | Default value | Description | +|---------------|-----------------------|---------------|-------------------------------------------------------| +| `universe` | `7` | `0` | OLA universe to send/receive data on | + +#### Channel specification + +A channel is specified by it's universe index. Channel indices start at 1 and end at 512. + +Example mapping: +``` +ola1.231 < in2.123 +``` + +A 16-bit channel (spanning any two normal 8-bit channels in the same universe, also called a wide channel) may be mapped with the syntax +``` +ola1.1+2 > net2.5+123 +``` + +A normal channel that is part of a wide channel can not be mapped individually. + +#### Known bugs / problems + +The backend currently assumes that the OLA daemon is running on the same host as the MIDIMonster. +This may be made configurable in the future. + +This backend requires `libola-dev` to be installed, which pulls in a rather large and aggressive (in terms of probing +and taking over connected hardware) daemon. It is thus marked as optional and only built when executing the `full` target +within the `backends` directory. + ## Building This section will explain how to build the provided sources to be able to run @@ -451,6 +499,7 @@ support for the protocols to translate. * libasound2-dev (for the MIDI backend) * libevdev-dev (for the evdev backend) +* libola-dev (for the optional OLA backend) * pkg-config (as some projects and systems like to spread their files around) * A C compiler * GNUmake @@ -459,6 +508,9 @@ support for the protocols to translate. Just running `make` in the source directory should do the trick. +Some backends have been marked as optional as they require rather large additional software to be installed, +for example the `ola` backend. To build these, run `make full` in the backends directory. + ## Development The architecture is split into the `midimonster` core, handling mapping |