mirror of
https://github.com/mpv-player/mpv
synced 2024-11-18 21:16:10 +01:00
bf5b1e9a05
Almost nothing was left of it. The only thing this commit actually removes is support for reading input commands from stdin. But you can emulate this via: --input-file=/dev/stdin --input-terminal=no However, this won't work on Windows. Just use a named pipe.
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ReStructuredText
372 lines
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ReStructuredText
CHANGES FROM OTHER VERSIONS OF MPLAYER
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======================================
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**mpv** is based on mplayer2, which in turn is based on the original MPlayer
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(also called mplayer, mplayer-svn, mplayer1). Many changes have been made, a
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large part of which is incompatible or completely changes how the player
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behaves. Although there are still many similarities to its ancestors, **mpv**
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should generally be treated as a completely different program.
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.. note::
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These lists are incomplete.
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General Changes for MPlayer to mpv
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----------------------------------
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* Switch to GPLv2+. (Technically speaking, MPlayer as a whole seems to be
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GPLv2-only, while mplayer2 is GPLv3+ - see ``Copyright`` file for details.)
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* Removal of the internal GUI, MEncoder, OSD menu, video kernel drivers for
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Linux 2.4 (including VIDIX)
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* Large internal cleanups
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* Removal of support for dead platforms
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* New buildsystem
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* No embedded copy of ffmpeg and other libraries
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* Better pause handling (do not unpause on a command)
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* Better MKV support (such as ordered chapters)
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* vo_vdpau improvements
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* Precise seeking support
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* Native OpenGL backend for OSX
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* General OSX improvements
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* Improvements in audio/video sync handling
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* Cleaned up terminal output
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* Gapless audio support (``--gapless-audio``)
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* Improved responsiveness on user input
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* Support for modifier keys (alt, shift, ctrl) in input.conf
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* OSS4 volume control
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* More correct color reproduction (color matrix generation)
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* Use libass for subtitle rendering by default (better quality)
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* Generally preferring ffmpeg/libav over internal demuxers and decoders
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* Improvements when playing multiple files (``--fixed-vo``)
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* Screenshot improvements (instant screenshots without 1-frame delay, allow
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taking screenshots even with hardware decoding)
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* Improved support for PulseAudio
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* Generally improved MS Windows support (dealing with unicode filenames,
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improved ``--vo=direct3d``, improved window handling)
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* Better OSD rendering (using libass). This has full unicode support, and
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languages like Arabic should be better supported.
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* Cleaned up terminal output (nicer status line, less useless noise)
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* Support for playing URLs of popular streaming sites directly
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(e.g. ``mpv https://www.youtube.com/watch?v=...``)
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* Improved OpenGL output (``--vo=opengl-hq``)
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* Make ``--softvol`` default (**mpv** is not a mixer control panel)
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* Improved support for .cue files
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* Screenshot improvements (can save screenshots as JPG or PNG, configurable
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filenames, support for taking screenshots with or without subtitles - the
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``screenshot`` video filter is not needed anymore, and should not be put
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into the mpv config file)
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* Removal of teletext support
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* Removal of most builtin demuxers, using libavformat instead
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* Removal of builtin network support, using libavformat instead (also,
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support https via libavformat)
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* Replace image VOs (``--vo=jpeg`` etc.) with ``--vo=image``
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* Do not lose settings when playing a new file in the same player instance
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* New location for config files, new name for the binary.
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* Slave mode compatibility broken (see below)
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* Encoding functionality (replacement for mencoder, see ``DOCS/encoding.rst``)
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* Remove ``--vo=gif89a``, ``--vo=md5sum``, ``--vo=yuv4mpeg``, as encoding can
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handle these use cases. For yuv4mpeg, for example, use:
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``mpv input.mkv -o output.y4m --no-audio --oautofps --oneverdrop``.
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* Image subtitles (DVDs etc.) are rendered in color and use more correct
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positioning (color can be disabled with ``--sub-gray``)
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* Wayland support
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* Support for precise scrolling which scales the parameter of commands. If the
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input doesn't support precise scrolling the scale factor stays 1.
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* OSX: Cocoa event loop is independent from mplayer's event loop, so user
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actions like accessing menus and live resizing do not block the playback.
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* OSX: Apple Remote support.
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* OSX: Media Keys support.
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* Windows: Added WASAPI audio output.
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* New OSD bar with chapter marks and not positioned in the middle of the video
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(though this can be customized with the ``--osd-bar-align-y`` option).
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* Allow customizing whether a key binding for seeking shows the video time, the
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OSD bar, or nothing (see section `Input Command Prefixes`_).
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* Display list of chapters and audio/subtitle tracks on OSD (see section
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`Properties`_).
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* ``--keep-open`` option to stop the player from closing the window and
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exiting after playback ends.
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* Re-enable screensaver while the player is paused.
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* Matroska edition switching at runtime.
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* Support for libavfilter (for video->video and audio->audio). This allows
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using most of FFmpeg's filters, which improve greatly on the old MPlayer
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filters in features, performance, and correctness.
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* Improved downmixing and output of surround audio. Instead of using hardcoded
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pan filters to do remixing, use libavresample. Channel maps are used to
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identify the channel layout, so e.g. ``3.0`` and ``2.1`` audio can be
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distinguished.
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* Allow resuming playback at a later point with ``Shift+q``, also see
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``quit_watch_later`` input command.
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* Support mapping multiple commands to one key.
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* Allow changing/adjusting video filters at runtime. (This is also used to make
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the ``D`` key insert vf_yadif if deinterlacing is not supported otherwise.)
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* Native VAAPI support
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* OSX: VDA support using libavcodec hwaccel API insted of FFmpeg's decoder. Up
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to 2-2.5x reduction in CPU usage.
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* Make hardware decoding in general work with the ``opengl`` video output.
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* Lua scripting (see `LUA SCRIPTING`_)
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* A client API, that allows embedding **mpv** into applications
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(see ``libmpv/client.h`` in the sources)
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* General bug fixes and removal of long-standing issues
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* General code cleanups (including refactoring or rewrites of many parts)
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* Many more changes
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Detailed Listing of User-visible Changes
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----------------------------------------
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This listing is about changed command line switches, slave commands, and similar
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things. Completely removed features are not listed.
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Command Line Switches
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~~~~~~~~~~~~~~~~~~~~~
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* There is a new command line syntax, which is generally preferred over the old
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syntax. ``-optname optvalue`` becomes ``--optname=optvalue``.
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The old syntax will not be removed. However, the new syntax is mentioned in
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all documentation and so on, and unlike the old syntax is not ambiguous,
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so it is a good thing to know about this change.
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* In general, negating switches like ``-noopt`` now have to be written as
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``-no-opt`` or ``--no-opt``.
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* Per-file options are not the default anymore. You can explicitly specify
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file-local options. See ``Usage`` section.
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* Many options have been renamed, removed or changed semantics. Some options
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that are required for a good playback experience with MPlayer are now
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superfluous or even worse than the defaults, so make sure to read the manual
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before trying to use your existing configuration with **mpv**.
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* Table of renamed/replaced switches:
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=========================== ========================================
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Old New
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=========================== ========================================
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``-no<opt>`` ``--no-<opt>`` (add a dash)
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``-a52drc level`` ``--ad-lavc-ac3drc=level``
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``-ac spdifac3`` ``--ad=spdif:ac3`` (see ``--ad=help``)
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``-af volnorm`` ``--af=drc`` (renamed)
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``-afm hwac3`` ``--ad=spdif:ac3,spdif:dts``
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``-ao alsa:device=hw=0.3`` ``--ao=alsa:device=[hw:0,3]``
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``-aspect`` ``--video-aspect``
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``-ass-bottom-margin`` ``--vf=sub=bottom:top``
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``-ass`` ``--sub-ass``
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``-audiofile-cache`` (removed; the main cache settings are used)
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``-audiofile`` ``--audio-file``
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``-benchmark`` ``--untimed`` (no stats)
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``-capture`` ``--stream-capture=<filename>``
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``-channels`` ``--audio-channels`` (changed semantics)
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``-cursor-autohide-delay`` ``--cursor-autohide``
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``-delay`` ``--audio-delay``
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``-dumpstream`` ``--stream-dump=<filename>``
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``-dvdangle`` ``--dvd-angle``
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``-endpos`` ``--length``
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``-font`` ``--osd-font``
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``-forcedsubsonly`` ``--sub-forced-only``
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``-forceidx`` ``--index``
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``-format`` ``--audio-format``
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``-fsmode-dontuse`` (removed)
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``-fstype`` ``--x11-netwm`` (changed semantics)
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``-hardframedrop`` ``--framedrop=hard``
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``-identify`` (removed; use TOOLS/mpv_identify.sh)
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``-idx`` ``--index``
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``-lavdopts ...`` ``--vd-lavc-...``
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``-lavfdopts`` ``--demuxer-lavf-...``
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``-lircconf`` ``--input-lirc-conf``
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``-loop 0`` ``--loop=inf``
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``-mixer-channel`` AO suboptions (``alsa``, ``oss``)
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``-mixer`` AO suboptions (``alsa``, ``oss``)
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``-mouse-movements`` ``--input-cursor``
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``-msgcolor`` ``--msg-color``
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``-msglevel`` ``--msg-level`` (changed semantics)
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``-msgmodule`` ``--msg-module``
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``-name`` ``--x11-name``
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``-noar`` ``--no-input-appleremote``
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``-noautosub`` ``--no-sub-auto``
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``-noconsolecontrols`` ``--no-input-terminal``
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``-nojoystick`` ``--no-input-joystick``
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``-nosound`` ``--no-audio``
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``-osdlevel`` ``--osd-level``
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``-panscanrange`` ``--video-zoom``, ``--video-pan-x/y``
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``-playing-msg`` ``--term-playing-msg``
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``-pp ...`` ``'--vf=pp=[...]'``
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``-pphelp`` ``--vf=pp:help``
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``-rawaudio ...`` ``--demuxer-rawaudio-...``
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``-rawvideo ...`` ``--demuxer-rawvideo-...``
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``-spugauss`` ``--sub-gauss``
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``-srate`` ``--audio-samplerate``
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``-ss`` ``--start``
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``-ssf <sub>`` ``--sws-...``
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``-stop-xscreensaver`` ``--stop-screensaver``
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``-sub-fuzziness`` ``--sub-auto``
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``-sub`` ``--sub-file``
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``-subcp`` ``--sub-codepage``
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``-subdelay`` ``--sub-delay``
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``-subfile`` ``--sub-file``
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``-subfont-*`` ``--sub-text-*``, ``--osd-*``
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``-subfont-text-scale`` ``--sub-scale``
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``-subfont`` ``--sub-text-font``
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``-subfps`` ``--sub-fps``
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``-subpos`` ``--sub-pos``
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``-sws`` ``--sws-scaler``
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``-tvscan`` ``--tv-scan``
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``-use-filename-title`` ``--title='${filename}'``
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``-vc ffh264vdpau`` (etc.) ``--hwdec=vdpau``
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``-vobsub`` ``--sub-file`` (pass the .idx file)
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``-x W``, ``-y H`` ``--geometry=WxH`` + ``--no-keepaspect``
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``-xineramascreen`` ``--screen`` (different values)
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``-xy W`` ``--autofit=W``
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``-zoom`` Inverse available as ``--video-unscaled``
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``dvdnav://`` ``dvdnav://menu``
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``dvd://1`` ``dvd://0`` (0-based offset)
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=========================== ========================================
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.. note::
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``-opt val`` becomes ``--opt=val``.
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.. note::
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Quite some video filters, video outputs, audio filters, audio outputs, had
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changes in their option parsing. These aren't mentioned in the table above.
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Also, some video and audio filters have been removed, and you have to use
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libavfilter (using ``--vf=lavfi=[...]`` or ``--af=lavfi=[...]``) to get
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them back.
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input.conf and Slave Commands
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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* Table of renamed input commands:
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This lists only commands that are not always gracefully handled by the
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internal legacy translation layer. If an input.conf contains any legacy
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commands, a warning will be printed when starting the player. The warnings
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also show the replacement commands.
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Properties containing ``_`` to separate words use ``-`` instead.
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+--------------------------------+----------------------------------------+
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| Old | New |
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+================================+========================================+
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| ``pt_step 1 [0|1]`` | ``playlist_next [weak|force]`` |
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| | (translation layer cannot deal with |
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| | whitespace) |
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+--------------------------------+----------------------------------------+
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| ``pt_step -1 [0|1]`` | ``playlist_prev [weak|force] (same)`` |
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+--------------------------------+----------------------------------------+
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| ``switch_ratio [<ratio>]`` | ``set video-aspect <ratio>`` |
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| | |
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| | ``set video-aspect 0`` (reset aspect) |
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+--------------------------------+----------------------------------------+
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| ``step_property_osd <prop>`` | ``cycle <prop> <step>`` (wraps), |
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| ``<step> <dir>`` | ``add <prop> <step>`` (clamps). |
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| | ``<dir>`` parameter unsupported. Use |
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| | a negative ``<step>`` instead. |
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+--------------------------------+----------------------------------------+
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| ``step_property <prop>`` | Prefix ``cycle`` or ``add`` with |
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| ``<step> <dir>`` | ``no-osd``: ``no-osd cycle <prop>`` |
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| | ``<step>`` |
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+--------------------------------+----------------------------------------+
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| ``osd_show_property_text`` | ``show_text <text>`` |
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| ``<text>`` | The property expansion format string |
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| | syntax slightly changed. |
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+--------------------------------+----------------------------------------+
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| ``osd_show_text`` | Now does the same as |
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| | ``osd_show_property_text``. Use the |
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| | ``raw`` prefix to disable property |
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| | expansion. |
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+--------------------------------+----------------------------------------+
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| ``show_tracks`` | ``show_text ${track-list}`` |
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+--------------------------------+----------------------------------------+
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| ``show_chapters`` | ``show_text ${chapter-list}`` |
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+--------------------------------+----------------------------------------+
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| ``af_switch``, ``af_add``, ... | ``af set|add|...`` |
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+--------------------------------+----------------------------------------+
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| ``tv_start_scan`` | ``set tv-scan yes`` |
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+--------------------------------+----------------------------------------+
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| ``tv_set_channel <val>`` | ``set tv-channel <val>`` |
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+--------------------------------+----------------------------------------+
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| ``tv_step_channel`` | ``cycle tv-channel`` |
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+--------------------------------+----------------------------------------+
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| ``dvb_set_channel <v1> <v2>`` | ``set dvb-channel <v1>-<v2>`` |
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+--------------------------------+----------------------------------------+
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| ``dvb_step_channel`` | ``cycle dvb-channel`` |
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+--------------------------------+----------------------------------------+
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| ``tv_set_freq <val>`` | ``set tv-freq <val>`` |
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+--------------------------------+----------------------------------------+
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| ``tv_step_freq`` | ``cycle tv-freq`` |
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+--------------------------------+----------------------------------------+
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| ``tv_set_norm <norm>`` | ``set tv-norm <norm>`` |
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+--------------------------------+----------------------------------------+
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| ``tv_step_norm`` | ``cycle tv-norm`` |
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+--------------------------------+----------------------------------------+
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.. note::
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Due to lack of hardware and users using the TV/DVB/PVR features, and
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due to the need to cleanup the related command code, it's possible
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that the new commands are buggy or behave worse. This can be improved
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if testers are available. Otherwise, some of the TV code will be
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removed at some point.
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Slave mode
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~~~~~~~~~~
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* Slave mode was removed. A proper slave mode application needed tons of code
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and hacks to get
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it right. The main problem is that slave mode is a bad and incomplete
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interface, and to get around that, applications parsed output messages
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intended for users. It is hard to know which messages exactly are parsed by
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slave mode applications. This makes it virtually impossible to improve
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terminal output intended for users without possibly breaking something.
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This is absolutely insane, and since initial improvements to **mpv** quickly
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made slave mode incompatible to most applications, it was removed as useless
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cruft. The client API (see below) is provided instead.
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``--identify`` was replaced by the ``TOOLS/mpv_identify.sh`` wrapper script.
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* A JSON RPC protocol giving access to the client API is planned, but nothing
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has emerged yet.
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* **mpv** also provides a client API, which can be used to embed the player
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by loading it as shared library. (See ``libmpv/client.h`` in the sources.)
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It might also be possible to implement a custom slave mode-like protocol
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using Lua scripting.
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Policy for Removed Features
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---------------------------
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**mpv** is in active development. If something is in the way of more important
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development (such as fixing bugs or implementing new features), we sometimes
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remove features. Usually this happens only with old features that either seem
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to be useless, or are not used by anyone. Often these are obscure, or
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"inherited", or were marked experimental, but never received any particular
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praise by any users.
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Sometimes, features are replaced by something new. The new code will be either
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simpler or more powerful, but doesn't necessarily provide everything the old
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feature did.
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We can not exclude that we accidentally remove features that are actually
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popular. Generally, we do not know how much a specific functionality is used.
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If you miss a feature and think it should be re-added, please open an issue
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on the mpv bug tracker. Hopefully, a solution can be found. Often, it turns
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out that re-adding something is not much of a problem, or that there are
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better alternatives.
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Why this Fork?
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--------------
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mplayer2 is practically dead, and mpv started out as a branch containing
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new/experimental development. (Some of it was merged right *after* the fork
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was made public, seemingly as an acknowledgment that development, or at
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least merging, should have been more active.)
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MPlayer is focused on not breaking anything, but is stuck with a horrible
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codebase resistant to cleanup. (Unless you do what mpv did - merciless and
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consequent pruning of bad, old code.) Cleanup and keeping broken things
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conflict, so the kind of development mpv strives for can't be done within
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MPlayer due to clashing development policies.
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Additionally, mplayer2 already had lots of changes over MPlayer, which would
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have needed to be backported to the MPlayer codebase. This would not only
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have been hard (several years of diverging development), but also would have
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been impossible due to the aforementioned MPlayer development policy.
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