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mpv/DOCS
wm4 67689ff6b4 client API: preparations for allowing render API to use DR etc.
DR (letting the decoder allocate texture memory) requires running the
allocation on the render thread. This is rather hard with the render
API, because the user controls this thread and when it's entered. It was
not possible until now.

This commit adds a bunch of infrastructure to make this possible. We add
a new optional mode (MPV_RENDER_PARAM_ADVANCED_CONTROL) which basically
lets the user's render thread and libmpv agree how this should be done.

Misuse would lead to deadlocks. To make this less likely, strictly
document thread safety/locking issues. In particular, document which
libmpv functions can be called without issues. (The rest has to be
assumed unsafe.)

The worst issue is destruction of the render context while video is
still active. To avoid certain unintended recursive locks (i.e.
deadlocks, unless we'd make the locks recursive), make the update
callback lock separate. Make "killing" the video chain asynchronous, so
we can do extra work while video is being destroyed.

Because losing wakeups is a big deal, setting the update callback now
triggers a wakeup. (It would have been better if the wakeup callback
were a parameter to mpv_render_context_create(), but too late.)

This commit does not add DR yet; the following commit does this.
2018-04-29 02:21:32 +03:00
..
man encoding: deprecate a bunch of obscure options 2018-04-20 12:37:15 +02:00
client-api-changes.rst client API: preparations for allowing render API to use DR etc. 2018-04-29 02:21:32 +03:00
compile-windows.md DOCS/compile-windows.md: update for changes to mpv and MSYS2 2017-10-02 01:28:54 +11:00
contribute.md DOCS/contribute.md: fix a typo 2017-11-30 20:36:09 +01:00
edl-mpv.rst DOCS/edl-mpv.rst: fix typo 2017-02-05 16:02:58 +01:00
encoding.rst player: change default section when loading encoding-profiles.conf 2017-07-12 13:11:14 +02:00
interface-changes.rst encoding: deprecate a bunch of obscure options 2018-04-20 12:37:15 +02:00
mplayer-changes.rst vo_opengl: refactor into vo_gpu 2017-09-21 15:00:55 +02:00
release-policy.md Release 0.25.0 2017-04-23 01:57:53 +02:00
tech-overview.txt video: change some remaining vo_opengl mentions to vo_gpu 2018-01-20 14:43:49 -08:00
waf-buildsystem.rst DOCS/waf-buildsystem.rst: fix typo 2017-02-15 10:41:26 +01:00