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mirror of https://github.com/mpv-player/mpv synced 2025-03-30 15:29:56 +00:00
mpv/options
wm4 b16cea750f player: change m_config to use new option handling mechanisms
Instead of making m_config a special-case, it more or less uses the
underlying m_config_cache/m_config_shadow APIs properly. This makes the
player core a (relatively) equivalent user of the core option API. In
particular, this means that other threads can change core options with
m_config_cache_write_opt() calls (before this commit, this merely led to
diverging option values).

An important change is that before this commit, mpctx->opts contained
the "master copy" of all option data. Now it's just another copy of the
option data, and the shadow copy is considered the master. This is why
whenever mpctx->opts is written, the change needs to be copied to the
master (thus why this commits add a bunch of m_config_notify... calls).

If another thread (e.g. a VO) changes an option, async_change_cb is now
invoked, which funnels the change notification through the player's
layers.

The new self_notification parameter on mp_option_change_callback is so
that m_config_notify... doesn't trigger recursion, and it's used in
cases where the change was already "processed". It's still needed to
trigger libmpv property updates. (I considered using an extra
m_config_cache for that, but it'd only cause problems with no
advantages.)

I think the recent changes actually forgot to send libmpv property
updates in some cases. This should fix this anyway. In some cases,
property updates are reworked, and the potential for bugs should be
lower (probably).

The primary point of this change is to allow external updates, for
example by a VO writing the fullscreen option if the window state is
changed by the window manager (rather than mpv changing it). This is not
used yet, but the following commits will.
2019-11-29 12:49:15 +01:00
..
m_config.c player: change m_config to use new option handling mechanisms 2019-11-29 12:49:15 +01:00
m_config.h player: change m_config to use new option handling mechanisms 2019-11-29 12:49:15 +01:00
m_option.c m_option: add option comparison 2019-11-29 12:14:43 +01:00
m_option.h m_option: remove an outdated ancient comment 2019-11-29 12:14:43 +01:00
m_property.c command: move property multiply code to m_property.c 2018-03-26 19:47:08 +02:00
m_property.h command: move property multiply code to m_property.c 2018-03-26 19:47:08 +02:00
options.c options: get rid of GLOBAL_CONFIG hack 2019-11-29 12:14:43 +01:00
options.h options: get rid of GLOBAL_CONFIG hack 2019-11-29 12:14:43 +01:00
parse_commandline.c Remove optical disc fancification layers 2019-09-13 17:31:59 +02:00
parse_commandline.h player: get rid of mpv_global.opts 2018-05-24 19:56:35 +02:00
parse_configfile.c options: change license of most files to LGPL (except options.c/.h) 2017-06-12 20:55:17 +02:00
parse_configfile.h options: change license of most files to LGPL (except options.c/.h) 2017-06-12 20:55:17 +02:00
path.c options/path: fix url detection per RFC3986 2019-04-05 20:48:24 +03:00
path.h path: don't access global option struct 2018-05-24 19:56:35 +02:00