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mpv/DOCS/client-api-changes.rst
wm4 f30c5d09f4 client API: turn mpv_suspend() and mpv_resume() into stubs 
As threatened by the API changes document.

This commit also removes or stubs equivalent calls in IPC and Lua
scripting.

The stubs are left to maintain ABI compatibility. The semantics of the
API functions have been close enough to doing nothing that this probably
won't even break existing API users. Probably.
2016-11-22 15:54:44 +01:00

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Introduction
============
This file lists all changes that can cause compatibility issues when using
mpv through the client API (libmpv and ``client.h``). Since the client API
interfaces to input handling (commands, properties) as well as command line
options, you should also look at ``interface-changes.rst``.
Normally, changes to the C API that are incompatible to previous iterations
receive a major version bump (i.e. the first version number is increased),
while C API additions bump the minor version (i.e. the second number is
increased). Changes to properties/commands/options may also lead to a minor
version bump, in particular if they are incompatible.
The version number is the same as used for MPV_CLIENT_API_VERSION (see
``client.h`` how to convert between major/minor version numbers and the flat
32 bit integer).
Also, read the section ``Compatibility`` in ``client.h``.
Options, commands, properties
=============================
Changes to these are not listed here, but in ``interface-changes.rst``. (Before
client API version 1.17, they were listed here partially.)
This listing includes changes to the bare C API and behavior only, not what
you can access with them.
API changes
===========
::
--- mpv 0.23.0 ---
1.24 - the deprecated mpv_suspend() and mpv_resume() APIs now do nothing.
--- mpv 0.22.0 ---
1.23 - deprecate setting "no-" options via mpv_set_option*(). For example,
instead of "no-video=" you should set "video=no".
- do not override the SIGPIPE signal handler anymore. This was done as
workaround for the FFmpeg TLS code, which has been fixed long ago.
- deprecate mpv_suspend() and mpv_resume(). They will be stubbed out
in mpv 0.23.0.
- make mpv_set_property() work to some degree before mpv_initialize().
It can now be used instead of mpv_set_option().
- semi-deprecate mpv_set_option()/mpv_set_option_string(). You should
use mpv_set_property() instead. There are some deprecated properties
which conflict with some options (see client.h remarks on
mpv_set_option()), for which mpv_set_option() might still be required.
In future mpv releases, the conflicting deprecated options/properties
will be removed, and mpv_set_option() will internally translate API
calls to mpv_set_property().
- qthelper.hpp: deprecate get_property_variant, set_property_variant,
set_option_variant, command_variant, and replace them with
get_property, set_property, command.
--- mpv 0.19.0 ---
1.22 - add stream_cb API for custom protocols
--- mpv 0.18.1 ---
---- - remove "status" log level from mpv_request_log_messages() docs. This
is 100% equivalent to "v". The behavior is still the same, thus no
actual API change.
--- mpv 0.18.0 ---
1.21 - mpv_set_property() changes behavior with MPV_FORMAT_NODE. Before this
change it rejected mpv_nodes with format==MPV_FORMAT_STRING if the
property was not a string or did not have special mechanisms in place
the function failed. Now it always invokes the option string parser,
and mpv_node with a basic data type works exactly as if the function
is invoked with that type directly. This new behavior is equivalent
to mpv_set_option().
This also affects the mp.set_property_native() Lua function.
- generally, setting choice options/properties with "yes"/"no" options
can now be set as MPV_FORMAT_FLAG
- reading a choice property as MPV_FORMAT_NODE will now return a
MPV_FORMAT_FLAG value if the choice is "yes" (true) or "no" (false)
This implicitly affects Lua and JSON IPC interfaces as well.
- big changes to vo-cmdline on vo_opengl and vo_opengl_hq (but not
vo_opengl_cb): options are now normally not reset, but applied on top
of the current options. The special undocumented value "-" still
works, but now resets all options to before any vo-cmdline command
has been called.
--- mpv 0.12.0 ---
1.20 - deprecate "GL_MP_D3D_interfaces"/"glMPGetD3DInterface", and introduce
"GL_MP_MPGetNativeDisplay"/"glMPGetNativeDisplay" (this is a
backwards-compatible rename)
--- mpv 0.11.0 ---
--- mpv 0.10.0 ---
1.19 - add "GL_MP_D3D_interfaces" pseudo extension to make it possible to
use DXVA2 in OpenGL fullscreen mode in some situations
- mpv_request_log_messages() now accepts "terminal-default" as parameter
1.18 - add MPV_END_FILE_REASON_REDIRECT, and change behavior of
MPV_EVENT_END_FILE accordingly
- a bunch of interface-changes.rst changes
1.17 - mpv_initialize() now blocks SIGPIPE (details see client.h)
--- mpv 0.9.0 ---
1.16 - add mpv_opengl_cb_report_flip()
- introduce mpv_opengl_cb_draw() and deprecate mpv_opengl_cb_render()
- add MPV_FORMAT_BYTE_ARRAY
1.15 - mpv_initialize() will now load config files. This requires setting
the "config" and "config-dir" options. In particular, it will load
mpv.conf.
- minor backwards-compatible change to the "seek" and "screenshot"
commands (new flag syntax, old additional args deprecated)
--- mpv 0.8.0 ---
1.14 - add mpv_wait_async_requests()
- the --msg-level option changes its native type from a flat string to
a key-value list (setting/reading the option as string still works)
1.13 - add MPV_EVENT_QUEUE_OVERFLOW
1.12 - add class Handle to qthelper.hpp
- improve opengl_cb.h API uninitialization behavior, and fix the qml
example
- add mpv_create_client() function
1.11 - add OpenGL rendering interop API - allows an application to combine
its own and mpv's OpenGL rendering
Warning: this API is not stable yet - anything in opengl_cb.h might
be changed in completely incompatible ways in minor API bumps
--- mpv 0.7.0 ---
1.10 - deprecate/disable everything directly related to script_dispatch
(most likely affects nobody)
1.9 - add enum mpv_end_file_reason for mpv_event_end_file.reason
- add MPV_END_FILE_REASON_ERROR and the mpv_event_end_file.error field
for slightly better error reporting on playback failure
- add --stop-playback-on-init-failure option, and make it the default
behavior for libmpv only
- add qthelper.hpp set_option_variant()
- mark the following events as deprecated:
MPV_EVENT_TRACKS_CHANGED
MPV_EVENT_TRACK_SWITCHED
MPV_EVENT_PAUSE
MPV_EVENT_UNPAUSE
MPV_EVENT_METADATA_UPDATE
MPV_EVENT_CHAPTER_CHANGE
They are handled better with mpv_observe_property() as mentioned in
the documentation comments. They are not removed and still work.
1.8 - add qthelper.hpp
1.7 - add mpv_command_node(), mpv_command_node_async()
1.6 - modify "core-idle" property behavior
- MPV_EVENT_LOG_MESSAGE now always sends complete lines
- introduce numeric log levels (mpv_log_level)
--- mpv 0.6.0 ---
1.5 - change in X11 and "--wid" behavior again. The previous change didn't
work as expected, and now the behavior can be explicitly controlled
with the "input-x11-keyboard" option. This is only a temporary
measure until XEmbed is implemented and confirmed working.
Note: in 1.6, "input-x11-keyboard" was renamed to "input-vo-keyboard",
although the old option name still works.
1.4 - subtle change in X11 and "--wid" behavior
(this change was added to 0.5.2, and broke some things, see #1090)
--- mpv 0.5.0 ---
1.3 - add MPV_MAKE_VERSION()
1.2 - remove "stream-time-pos" property (no replacement)
1.1 - remap dvdnav:// to dvd://
- add "--cache-file", "--cache-file-size"
- add "--colormatrix-primaries" (and property)
- add "primaries" sub-field to image format properties
- add "playback-time" property
- extend the "--start" option; a leading "+", which was previously
insignificant is now significant
- add "cache-free" and "cache-used" properties
- OSX: the "coreaudio" AO spdif code is split into a separate AO
--- mpv 0.4.0 ---
1.0 - the API is declared stable
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