1Introduction
2============
3
4This file lists all changes that can cause compatibility issues when using
5mpv through the client API (libmpv and ``client.h``). Since the client API
6interfaces to input handling (commands, properties) as well as command line
7options, you should also look at ``interface-changes.rst``.
8
9Normally, changes to the C API that are incompatible to previous iterations
10receive a major version bump (i.e. the first version number is increased),
11while C API additions bump the minor version (i.e. the second number is
12increased). Changes to properties/commands/options may also lead to a minor
13version bump, in particular if they are incompatible.
14
15The version number is the same as used for MPV_CLIENT_API_VERSION (see
16``client.h`` how to convert between major/minor version numbers and the flat
1732 bit integer).
18
19Also, read the section ``Compatibility`` in ``client.h``, and compatibility.rst.
20
21Options, commands, properties
22=============================
23
24Changes to these are not listed here, but in ``interface-changes.rst``. (Before
25client API version 1.17, they were listed here partially.)
26
27This listing includes changes to the bare C API and behavior only, not what
28you can access with them.
29
30API changes
31===========
32
33::
34
35 --- mpv 0.33.0 ---
36 1.109  - add MPV_RENDER_API_TYPE_SW and related (software rendering API)
37        - inactivate the opengl_cb API (always fails to initialize now)
38          The opengl_cb API was deprecated over 2 years ago. Use the render API
39          instead.
40 1.108  - Deprecate MPV_EVENT_IDLE
41        - add mpv_event_start_file
42        - add the following fields to mpv_event_end_file: playlist_entry_id,
43          playlist_insert_id, playlist_insert_num_entries
44        - add mpv_event_to_node()
45        - add mpv_client_id()
46 1.107  - Remove the deprecated qthelper.hpp. This was obviously not part of the
47          libmpv API, only an "additionally" provided helper, thus this is not
48          considered an API change. If you are maintaining a project that relies
49          on this header, you can simply download this file and adjust the
50          include statement to use it instead:
51
52            https://raw.githubusercontent.com/mpv-player/mpv/v0.32.0/libmpv/qthelper.hpp
53
54          It is a good idea to write better wrappers for your use, though.
55 --- mpv 0.31.0 ---
56 1.107  - Deprecate MPV_EVENT_TICK
57
58 --- mpv 0.30.0 ---
59 1.106  - Add cancel_fn to mpv_stream_cb_info
60 1.105  - Fix deadlock problems with MPV_RENDER_PARAM_ADVANCED_CONTROL and if
61          the "vd-lavc-dr" option is enabled (which it is by default).
62          There were no actual API changes.
63          API users on older API versions and mpv releases should set
64          "vd-lavc-dr" to "no" to avoid these issues.
65          API users must still adhere to the tricky rules documented in render.h
66          to avoid other deadlocks.
67 1.104  - Deprecate struct mpv_opengl_drm_params. Replaced by mpv_opengl_drm_params_v2
68        - Deprecate MPV_RENDER_PARAM_DRM_DISPLAY. Replaced by MPV_RENDER_PARAM_DRM_DISPLAY_V2.
69 1.103  - redo handling of async commands
70        - add mpv_event_command and make it possible to return values from
71          commands issued with mpv_command_async() or mpv_command_node_async()
72        - add mpv_abort_async_command()
73 1.102  - rename struct mpv_opengl_drm_osd_size to mpv_opengl_drm_draw_surface_size
74        - rename MPV_RENDER_PARAM_DRM_OSD_SIZE to MPV_RENDER_PARAM_DRM_DRAW_SURFACE_SIZE
75
76 --- mpv 0.29.0 ---
77 1.101  - add MPV_RENDER_PARAM_ADVANCED_CONTROL and related API
78        - add MPV_RENDER_PARAM_NEXT_FRAME_INFO and related symbols
79        - add MPV_RENDER_PARAM_BLOCK_FOR_TARGET_TIME
80        - add MPV_RENDER_PARAM_SKIP_RENDERING
81        - add mpv_render_context_get_info()
82 1.100  - bump API number to avoid confusion with mpv release versions
83        - actually apply the GL_MP_MPGetNativeDisplay change for the new render
84          API. This also means compatibility for anything but x11 and wayland
85          through the old opengl-cb GL_MP_MPGetNativeDisplay method is now
86          unsupported.
87        - deprecate mpv_get_wakeup_pipe(). It's complex, but easy to replace
88          using normal API (just set a wakeup callback to a function which
89          writes to a pipe).
90        - add a 1st class hook API, which replaces the hacky mpv_command()
91          based one. The old API is deprecated and will be removed soon. The
92          old API was never meant to be stable, while the new API is.
93 1.29   - the behavior of mpv_terminate_destroy() and mpv_detach_destroy()
94          changes subtly (see documentation in the header file). In particular,
95          mpv_detach_destroy() will not leave the player running in all
96          situations anymore (it gets closer to refcounting).
97        - rename mpv_detach_destroy() to mpv_destroy() (the old function will
98          remain valid as deprecated alias)
99        - add mpv_create_weak_client(), which makes use of above changes
100        - MPV_EVENT_SHUTDOWN is now returned exactly once if a mpv_handle
101          should terminate, instead of spamming the event queue with this event
102 1.28   - deprecate the render opengl_cb API, and replace it with render.h
103          and render_gl.h. The goal is allowing support for APIs other than
104          OpenGL. The old API is emulated with the new API.
105          Likewise, the "opengl-cb" VO is renamed to "libmpv".
106          mpv_get_sub_api() is deprecated along the opengl_cb API.
107          The new API is relatively similar, but not the same. The rough
108          equivalents are:
109            mpv_opengl_cb_init_gl => mpv_render_context_create
110            mpv_opengl_cb_set_update_callback => mpv_render_context_set_update_callback
111            mpv_opengl_cb_draw => mpv_render_context_render
112            mpv_opengl_cb_report_flip => mpv_render_context_report_swap
113            mpv_opengl_cb_uninit_gl => mpv_render_context_free
114          The VO opengl-cb is also renamed to "libmpv".
115          Also, the GL_MP_MPGetNativeDisplay pseudo extension is not used by the
116          render API anymore, and the old opengl-cb API only handles the "x11"
117          and "wl" names anymore. Support for everything else has been removed.
118          The new render API uses proper API parameters, e.g. for X11 you pass
119          MPV_RENDER_PARAM_X11_DISPLAY directly.
120        - deprecate the qthelper.hpp header file. This provided some C++ helper
121          utility functions for Qt with use of libmpv. There is no reason to
122          keep this in the mpv git repository, nor to make it part of the libmpv
123          API. If you're using this header, you can safely copy it into your
124          project - it uses only libmpv public API. Alternatively, it could be
125          maintained in a separate repository by interested parties.
126 1.27   - make opengl-cb the default VO. This causes a subtle behavior change
127          if the API user called mpv_opengl_cb_init_gl(), but does not set
128          the "vo" option. Before, it would still have used another VO (like
129          on the CLI, e.g. vo=gpu). Now it'll behave as if vo=opengl-cb was
130          used.
131 --- mpv 0.28.0 ---
132 1.26   - remove glMPGetNativeDisplay("drm") support
133        - add mpv_opengl_cb_window_pos and mpv_opengl_cb_drm_params and
134          support via glMPGetNativeDisplay() for using it
135        - make --stop-playback-on-init-failure=no the default in libmpv (just
136          like in mpv CLI)
137 --- mpv 0.27.0 ---
138 1.25   - remove setting "no-" options via mpv_set_option*(). (See corresponding
139          deprecation in 0.23.0.)
140 --- mpv 0.25.0 ---
141 1.24   - add a MPV_ENABLE_DEPRECATED preprocessor symbol, which can be defined
142          by the user to exclude deprecated API symbols from the C headers
143 --- mpv 0.23.0 ---
144 1.24   - the deprecated mpv_suspend() and mpv_resume() APIs now do nothing.
145 --- mpv 0.22.0 ---
146 1.23   - deprecate setting "no-" options via mpv_set_option*(). For example,
147          instead of "no-video=" you should set "video=no".
148        - do not override the SIGPIPE signal handler anymore. This was done as
149          workaround for the FFmpeg TLS code, which has been fixed long ago.
150        - deprecate mpv_suspend() and mpv_resume(). They will be stubbed out
151          in mpv 0.23.0.
152        - make mpv_set_property() work to some degree before mpv_initialize().
153          It can now be used instead of mpv_set_option().
154        - semi-deprecate mpv_set_option()/mpv_set_option_string(). You should
155          use mpv_set_property() instead. There are some deprecated properties
156          which conflict with some options (see client.h remarks on
157          mpv_set_option()), for which mpv_set_option() might still be required.
158          In future mpv releases, the conflicting deprecated options/properties
159          will be removed, and mpv_set_option() will internally translate API
160          calls to mpv_set_property().
161        - qthelper.hpp: deprecate get_property_variant, set_property_variant,
162          set_option_variant, command_variant, and replace them with
163          get_property, set_property, command.
164 --- mpv 0.19.0 ---
165 1.22   - add stream_cb API for custom protocols
166 --- mpv 0.18.1 ---
167 ----   - remove "status" log level from mpv_request_log_messages() docs. This
168          is 100% equivalent to "v". The behavior is still the same, thus no
169          actual API change.
170 --- mpv 0.18.0 ---
171 1.21   - mpv_set_property() changes behavior with MPV_FORMAT_NODE. Before this
172          change it rejected mpv_nodes with format==MPV_FORMAT_STRING if the
173          property was not a string or did not have special mechanisms in place
174          the function failed. Now it always invokes the option string parser,
175          and mpv_node with a basic data type works exactly as if the function
176          is invoked with that type directly. This new behavior is equivalent
177          to mpv_set_option().
178          This also affects the mp.set_property_native() Lua function.
179        - generally, setting choice options/properties with "yes"/"no" options
180          can now be set as MPV_FORMAT_FLAG
181        - reading a choice property as MPV_FORMAT_NODE will now return a
182          MPV_FORMAT_FLAG value if the choice is "yes" (true) or "no" (false)
183          This implicitly affects Lua and JSON IPC interfaces as well.
184        - big changes to vo-cmdline on vo_opengl and vo_opengl_hq (but not
185          vo_opengl_cb): options are now normally not reset, but applied on top
186          of the current options. The special undocumented value "-" still
187          works, but now resets all options to before any vo-cmdline command
188          has been called.
189 --- mpv 0.12.0 ---
190 1.20   - deprecate "GL_MP_D3D_interfaces"/"glMPGetD3DInterface", and introduce
191          "GL_MP_MPGetNativeDisplay"/"glMPGetNativeDisplay" (this is a
192          backwards-compatible rename)
193 --- mpv 0.11.0 ---
194 --- mpv 0.10.0 ---
195 1.19   - add "GL_MP_D3D_interfaces" pseudo extension to make it possible to
196          use DXVA2 in OpenGL fullscreen mode in some situations
197        - mpv_request_log_messages() now accepts "terminal-default" as parameter
198 1.18   - add MPV_END_FILE_REASON_REDIRECT, and change behavior of
199          MPV_EVENT_END_FILE accordingly
200        - a bunch of interface-changes.rst changes
201 1.17   - mpv_initialize() now blocks SIGPIPE (details see client.h)
202 --- mpv 0.9.0 ---
203 1.16   - add mpv_opengl_cb_report_flip()
204        - introduce mpv_opengl_cb_draw() and deprecate mpv_opengl_cb_render()
205        - add MPV_FORMAT_BYTE_ARRAY
206 1.15   - mpv_initialize() will now load config files. This requires setting
207          the "config" and "config-dir" options. In particular, it will load
208          mpv.conf.
209        - minor backwards-compatible change to the "seek" and "screenshot"
210          commands (new flag syntax, old additional args deprecated)
211 --- mpv 0.8.0 ---
212 1.14   - add mpv_wait_async_requests()
213        - the --msg-level option changes its native type from a flat string to
214          a key-value list (setting/reading the option as string still works)
215 1.13   - add MPV_EVENT_QUEUE_OVERFLOW
216 1.12   - add class Handle to qthelper.hpp
217        - improve opengl_cb.h API uninitialization behavior, and fix the qml
218          example
219        - add mpv_create_client() function
220 1.11   - add OpenGL rendering interop API - allows an application to combine
221          its own and mpv's OpenGL rendering
222          Warning: this API is not stable yet - anything in opengl_cb.h might
223                   be changed in completely incompatible ways in minor API bumps
224 --- mpv 0.7.0 ---
225 1.10   - deprecate/disable everything directly related to script_dispatch
226          (most likely affects nobody)
227 1.9    - add enum mpv_end_file_reason for mpv_event_end_file.reason
228        - add MPV_END_FILE_REASON_ERROR and the mpv_event_end_file.error field
229          for slightly better error reporting on playback failure
230        - add --stop-playback-on-init-failure option, and make it the default
231          behavior for libmpv only
232        - add qthelper.hpp set_option_variant()
233        - mark the following events as deprecated:
234            MPV_EVENT_TRACKS_CHANGED
235            MPV_EVENT_TRACK_SWITCHED
236            MPV_EVENT_PAUSE
237            MPV_EVENT_UNPAUSE
238            MPV_EVENT_METADATA_UPDATE
239            MPV_EVENT_CHAPTER_CHANGE
240          They are handled better with mpv_observe_property() as mentioned in
241          the documentation comments. They are not removed and still work.
242 1.8    - add qthelper.hpp
243 1.7    - add mpv_command_node(), mpv_command_node_async()
244 1.6    - modify "core-idle" property behavior
245        - MPV_EVENT_LOG_MESSAGE now always sends complete lines
246        - introduce numeric log levels (mpv_log_level)
247 --- mpv 0.6.0 ---
248 1.5    - change in X11 and "--wid" behavior again. The previous change didn't
249          work as expected, and now the behavior can be explicitly controlled
250          with the "input-x11-keyboard" option. This is only a temporary
251          measure until XEmbed is implemented and confirmed working.
252          Note: in 1.6, "input-x11-keyboard" was renamed to "input-vo-keyboard",
253          although the old option name still works.
254 1.4    - subtle change in X11 and "--wid" behavior
255          (this change was added to 0.5.2, and broke some things, see #1090)
256 --- mpv 0.5.0 ---
257 1.3    - add MPV_MAKE_VERSION()
258 1.2    - remove "stream-time-pos" property (no replacement)
259 1.1    - remap dvdnav:// to dvd://
260        - add "--cache-file", "--cache-file-size"
261        - add "--colormatrix-primaries" (and property)
262        - add "primaries" sub-field to image format properties
263        - add "playback-time" property
264        - extend the "--start" option; a leading "+", which was previously
265          insignificant is now significant
266        - add "cache-free" and "cache-used" properties
267        - OSX: the "coreaudio" AO spdif code is split into a separate AO
268 --- mpv 0.4.0 ---
269 1.0    - the API is declared stable
270
271