mirror of
https://github.com/mpv-player/mpv
synced 2024-12-27 01:22:30 +00:00
76 lines
2.6 KiB
ReStructuredText
76 lines
2.6 KiB
ReStructuredText
EMBEDDING INTO OTHER PROGRAMS (LIBMPV)
|
|
======================================
|
|
|
|
mpv can be embedded into other programs as video/audio playback backend. The
|
|
recommended way to do so is using libmpv. See ``libmpv/client.h`` in the mpv
|
|
source code repository. This provides a C API. Bindings for other languages
|
|
might be available (see wiki).
|
|
|
|
Since libmpv merely allows access to underlying mechanisms that can control
|
|
mpv, further documentation is spread over a few places:
|
|
|
|
- https://github.com/mpv-player/mpv/blob/master/libmpv/client.h
|
|
- http://mpv.io/manual/master/#options
|
|
- http://mpv.io/manual/master/#list-of-input-commands
|
|
- http://mpv.io/manual/master/#properties
|
|
- https://github.com/mpv-player/mpv-examples/tree/master/libmpv
|
|
|
|
C PLUGINS
|
|
=========
|
|
|
|
You can write C plugins for mpv. These use the libmpv API, although they do not
|
|
use the libmpv library itself.
|
|
|
|
Currently, they must be explicitly enabled at build time with
|
|
``--enable-cplugins``. They are available on Linux/BSD platforms only.
|
|
|
|
C plugins location
|
|
------------------
|
|
|
|
C plugins are put into the mpv scripts directory in its config directory
|
|
(see the `FILES`_ section for details). They must have a ``.so`` file extension.
|
|
They can also be explicitly loaded with the ``--script`` option.
|
|
|
|
API
|
|
---
|
|
|
|
A C plugin must export the following function::
|
|
|
|
int mpv_open_cplugin(mpv_handle *handle)
|
|
|
|
The plugin function will be called on loading time. This function does not
|
|
return as long as your plugin is loaded (it runs in its own thread). The
|
|
``handle`` will be deallocated as soon as the plugin function returns.
|
|
|
|
The return value is interpreted as error status. A value of ``0`` is
|
|
interpreted as success, while ``-1`` signals an error. In the latter case,
|
|
the player prints an uninformative error message that loading failed.
|
|
|
|
Return values other than ``0`` and ``-1`` are reserved, and trigger undefined
|
|
behavior.
|
|
|
|
Within the plugin function, you can call libmpv API functions. The ``handle``
|
|
is created by ``mpv_create_client()`` (or actually an internal equivalent),
|
|
and belongs to you. You can call ``mpv_wait_event()`` to wait for things
|
|
happening, and so on.
|
|
|
|
Note that the player might block until your plugin calls ``mpv_wait_event()``
|
|
for the first time. This gives you a chance to install initial hooks etc.
|
|
before playback begins.
|
|
|
|
The details are quite similar to Lua scripts.
|
|
|
|
Linkage to libmpv
|
|
-----------------
|
|
|
|
The current implementation requires that your plugins are **not** linked against
|
|
libmpv. What your plugins uses are not symbols from a libmpv binary, but
|
|
symbols from the mpv host binary.
|
|
|
|
Examples
|
|
--------
|
|
|
|
See:
|
|
|
|
- https://github.com/mpv-player/mpv-examples/tree/master/cplugins
|