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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 0.29.0 ---
1.100 - bump API number to avoid confusion with mpv release versions
- actually apply the GL_MP_MPGetNativeDisplay change for the new render
API. This also means compatibility for anything but x11 and wayland
through the old opengl-cb GL_MP_MPGetNativeDisplay method is now
unsupported.
1.29 - the behavior of mpv_terminate_destroy() and mpv_detach_destroy()
changes subtly (see documentation in the header file). In particular,
mpv_detach_destroy() will not leave the player running in all
situations anymore (it gets closer to refcounting).
- rename mpv_detach_destroy() to mpv_destroy() (the old function will
remain valid as deprecated alias)
- add mpv_create_weak_client(), which makes use of above changes
- MPV_EVENT_SHUTDOWN is now returned exactly once if a mpv_handle
should terminate, instead of spamming the event queue with this event
1.28 - deprecate the render opengl_cb API, and replace it with render.h
and render_gl.h. The goal is allowing support for APIs other than
OpenGL. The old API is emulated with the new API.
Likewise, the "opengl-cb" VO is renamed to "libmpv".
mpv_get_sub_api() is deprecated along the opengl_cb API.
The new API is relatively similar, but not the same. The rough
equivalents are:
mpv_opengl_cb_init_gl => mpv_render_context_create
mpv_opengl_cb_set_update_callback => mpv_render_context_set_update_callback
mpv_opengl_cb_draw => mpv_render_context_render
mpv_opengl_cb_report_flip => mpv_render_context_report_swap
mpv_opengl_cb_uninit_gl => mpv_render_context_free
The VO opengl-cb is also renamed to "libmpv".
Also, the GL_MP_MPGetNativeDisplay pseudo extension is not used by the
render API anymore, and the old opengl-cb API only handles the "x11"
and "wl" names anymore. Support for everything else has been removed.
The new render API uses proper API parameters, e.g. for X11 you pass
MPV_RENDER_PARAM_X11_DISPLAY directly.
- deprecate the qthelper.hpp header file. This provided some C++ helper
utility functions for Qt with use of libmpv. There is no reason to
keep this in the mpv git repository, nor to make it part of the libmpv
API. If you're using this header, you can safely copy it into your
project - it uses only libmpv public API. Alternatively, it could be
maintained in a separate repository by interested parties.
1.27 - make opengl-cb the default VO. This causes a subtle behavior change
if the API user called mpv_opengl_cb_init_gl(), but does not set
the "vo" option. Before, it would still have used another VO (like
on the CLI, e.g. vo=gpu). Now it'll behave as if vo=opengl-cb was
used.
--- mpv 0.28.0 ---
1.26 - remove glMPGetNativeDisplay("drm") support
- add mpv_opengl_cb_window_pos and mpv_opengl_cb_drm_params and
support via glMPGetNativeDisplay() for using it
- make --stop-playback-on-init-failure=no the default in libmpv (just
like in mpv CLI)
--- mpv 0.27.0 ---
1.25 - remove setting "no-" options via mpv_set_option*(). (See corresponding
deprecation in 0.23.0.)
--- mpv 0.25.0 ---
1.24 - add a MPV_ENABLE_DEPRECATED preprocessor symbol, which can be defined
by the user to exclude deprecated API symbols from the C headers
--- 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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