mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-02 22:46:35 +00:00
64 lines
2.9 KiB
Markdown
64 lines
2.9 KiB
Markdown
# Dependencies
|
|
|
|
## Why are there so many dependencies ?
|
|
|
|
Making a full-featured media framework is a huge undertaking in
|
|
itself. By using the work done by others, we both reduce the amount of
|
|
redundant work being done and leave ourselves free to work on the
|
|
architecture itself instead of working on the low-level stuff. We would
|
|
be stupid not to reuse the code others have written.
|
|
|
|
However, do realize that in no way you are forced to have all
|
|
dependencies installed. None of the core developers has all of them
|
|
installed. GStreamer has only a few obligate dependencies : GLib 2.0,
|
|
liborc, and very common stuff like glibc, a C compiler, and so on. All
|
|
of the other dependencies are optional.
|
|
|
|
So, in closing, let's rephrase the question to “Why are you giving me so
|
|
many choices and such a rich environment ?”
|
|
|
|
## Is GStreamer X11 independent? Can it be used headless?
|
|
|
|
Yes, we have no hard dependency on X11 or any other windowing system in
|
|
any of our modules. There are many GStreamer applications that run fine
|
|
without any need for display servers or windowing systems,
|
|
for example streaming servers, transcoding applications, or audio
|
|
applications that don't output any video. Other applications output
|
|
video to a framebuffer, custom-made hardware sinks, or via wayland.
|
|
|
|
## What is GStreamer's position on efforts such as LADSPA or LV2?
|
|
|
|
GStreamer actively supports such efforts, and in the case of [LADSPA][ladspa]
|
|
or [LV2][lv2] we already have wrapper plugins. These wrapper plug-ins detect
|
|
the LADSPA/LV2 plugins present on your system at run time and make them
|
|
available as GStreamer elements.
|
|
|
|
[ladspa]: https://en.wikipedia.org/wiki/LADSPA
|
|
[lv2]: http://lv2plug.in/
|
|
|
|
## Does GStreamer support MIDI ?
|
|
|
|
There is some rudimentary MIDI support in GStreamer, but it's not complete yet.
|
|
|
|
The GStreamer architecture should be able to support the needs of MIDI
|
|
applications very well, a full implementation is still missing, however.
|
|
If you are a developer interested in adding MIDI support to GStreamer please
|
|
get in touch, we would definitely be interested in that.
|
|
|
|
As for what exists today: the [`alsamidisrc`][alsamidisrc] element can be used
|
|
to fetch ALSA MIDI sequencer events and makes them available to elements that
|
|
understand the `audio/x-midi-events` format.
|
|
|
|
MIDI playback is provided by plugins such as `midiparse`, `fluiddec`,
|
|
`wildmidi` and `timidity`.
|
|
|
|
[alsamidisrc]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-plugins/html/gst-plugins-base-plugins-alsamidisrc.html
|
|
|
|
## Does GStreamer depend on GNOME or GTK+ ?
|
|
|
|
No, it's just that many of the applications developed for GStreamer happen to
|
|
be GNOME or GTK+ applications, including some of our sample applications. There
|
|
are just as many applications that use the Qt toolkit or that are written for
|
|
Mac OS/X, Windows, Android or iOS. We aim to provide an API that is toolkit
|
|
agnostic, so that GStreamer can be used from any toolkit, desktop environment
|
|
or operating system.
|