From: Po Lu <luangruo@yahoo.com>
To: Richard Stallman <rms@gnu.org>
Cc: larsi@gnus.org, emacs-devel@gnu.org
Subject: Re: GStreamer xwidget
Date: Mon, 22 Nov 2021 12:41:14 +0800 [thread overview]
Message-ID: <8735noajkl.fsf@yahoo.com> (raw)
In-Reply-To: <E1mp0z4-0002jJ-OB@fencepost.gnu.org> (Richard Stallman's message of "Sun, 21 Nov 2021 23:31:14 -0500")
Richard Stallman <rms@gnu.org> writes:
> Because I know nothing about GStreamer except what I've seen in these
> messages, I can't be sure of the implications of these facts. I don't
> have enough context to fit them into.
Thanks, please see below.
> That suggests the feature might be ok -- but verifying that calls
> for some more discussion.
>
> as it doesn't depend on gst-plugins-ugly or gst-plugins-bad.
> You have mentioned gst-plugins-good, gst-plugins-ugly and
> gst-plugins-bad. Can you tell me how they relate to GStreamer itself?
They are plugins maintained by the GStreamer developers, but are
separate from GStreamer itself.
> How does GStreamer interact with them? Are they linked it by ld?
> Is it static linking?
They're not statically linked by GStreamer. Instead, GStreamer will
dynamically link them depending on what the application requests.
> Does the choice of one of those inevitably have to be made when
> building Emacs?
No, see below.
> Does GStreamer ever use some sort of dynamic linking to select one of
> them?
GStreamer does, but it will not load any plugin Emacs doesn't ask it to.
> They say "plugins", not "plugin". Is there a separate plugin for each
> media format?
Yes, that is true.
> If so, does selecting gst-plugins-good statically link _all_ of the
> free plugins? If not that, then what?
Asking for gst-plugins-base and gst-plugins-good will result in
GStreamer dynamically linking with the free plugins. As long as Emacs C
code doesn't explictly tell GStreamer to load the ugly or bad plugins,
which are non-free, GStreamer will never load them.
The ugly and bad plugins are not installed with a default GStreamer
distribution either. AFAIU, most GNU distributions do not have them in
their main package repositories either.
next prev parent reply other threads:[~2021-11-22 4:41 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <87ee7cq2mu.fsf.ref@yahoo.com>
2021-11-19 2:51 ` GStreamer xwidget Po Lu
2021-11-19 4:01 ` T.V Raman
2021-11-19 4:21 ` Po Lu
2021-11-19 5:38 ` Lars Ingebrigtsen
2021-11-19 5:49 ` Po Lu
2021-11-19 6:19 ` Lars Ingebrigtsen
2021-11-19 6:37 ` Po Lu
2021-11-19 6:53 ` Lars Ingebrigtsen
2021-11-19 13:03 ` Eli Zaretskii
2021-11-19 13:07 ` Po Lu
2021-11-19 13:22 ` Eli Zaretskii
2021-11-19 13:33 ` Po Lu
2021-11-19 13:45 ` Eli Zaretskii
2021-11-20 5:07 ` Po Lu
2021-11-20 7:23 ` Eli Zaretskii
2021-11-20 7:27 ` Po Lu
2021-11-21 5:19 ` Richard Stallman
2021-11-21 6:53 ` Lars Ingebrigtsen
2021-11-22 4:31 ` Richard Stallman
2021-11-20 7:42 ` Richard Stallman
2021-11-20 8:05 ` Po Lu
2021-11-20 8:16 ` Lars Ingebrigtsen
2021-11-21 5:18 ` Richard Stallman
2021-11-21 5:27 ` Po Lu
2021-11-22 4:31 ` Richard Stallman
2021-11-22 4:41 ` Po Lu [this message]
2021-11-23 6:11 ` Richard Stallman
2021-11-23 7:07 ` Po Lu
2021-11-23 20:54 ` Richard Stallman
2021-11-24 0:32 ` Po Lu
2021-11-25 5:32 ` Richard Stallman
2021-11-25 8:13 ` Po Lu
2021-11-25 11:34 ` Alexandre Garreau
2021-11-27 4:09 ` Richard Stallman
2021-12-01 12:30 ` Dmitry Gutov
2021-12-01 17:53 ` Arthur Miller
2021-12-02 0:51 ` Po Lu
2021-12-02 2:47 ` chad
2021-11-27 4:08 ` Richard Stallman
2021-11-27 4:38 ` Po Lu
2021-11-28 4:24 ` Richard Stallman
2021-11-28 4:42 ` Po Lu
2021-11-28 8:04 ` Yuri Khan
2021-11-28 8:16 ` Po Lu
2021-11-29 3:02 ` Richard Stallman
2021-11-29 7:31 ` Yuri Khan
2021-11-29 7:44 ` Po Lu
2021-11-29 21:12 ` Richard Stallman
2021-11-30 1:38 ` Po Lu
2021-11-30 8:30 ` Yasushi SHOJI
2021-11-30 9:29 ` Po Lu
2021-11-30 10:30 ` Yasushi SHOJI
2021-12-01 7:04 ` Richard Stallman
2021-12-01 7:09 ` Po Lu
2021-11-30 4:09 ` Richard Stallman
2021-11-29 3:01 ` Richard Stallman
2021-11-29 3:12 ` Po Lu
2021-11-30 4:09 ` Richard Stallman
2021-11-30 4:36 ` Po Lu
2021-12-01 7:04 ` Richard Stallman
2021-11-23 6:11 ` Richard Stallman
2021-11-23 6:55 ` Po Lu
2021-11-24 4:28 ` Richard Stallman
2021-11-21 6:52 ` Lars Ingebrigtsen
2021-11-21 14:45 ` Arthur Miller
2021-11-23 6:09 ` Richard Stallman
2021-11-22 4:31 ` Richard Stallman
2021-12-01 7:07 ` Richard Stallman
2021-12-01 7:31 ` Po Lu
2021-12-01 8:30 ` Alexandre Garreau
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