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https://github.com/mpv-player/mpv
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296 lines
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ReStructuredText
296 lines
15 KiB
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
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MPlayer (also called mplayer, mplayer-svn, mplayer1). Many changes
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have been made. Some changes are incompatible, or completely change how the
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player behaves.
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General Changes for MPlayer to mplayer2
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---------------------------------------
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* Removal of the internal GUI, MEncoder, OSD menu
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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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* No embedded copy of ffmpeg and other libraries
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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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* General code cleanups
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* Many more changes
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General Changes for mplayer2 to mpv
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-----------------------------------
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* Switch back to GPLv2+.
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* Removal of lots of unneeded code to encourage developer activity (less
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obscure scary zombie code that kills any desire for hacking the codebase)
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* Removal of dust and dead bodies (code-wise), such as kernel drivers for
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decades old hardware
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* Removal of support for dead platforms
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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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* 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 in the near future. However, the new
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syntax is mentioned in all documentation and so on, so it is a good thing to
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know about this change.
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(The new syntax was introduced in mplayer2.)
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* In general, negating switches like ``-noopt`` now have to be written as
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``-no-opt``, or better ``--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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* 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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``-nosound`` ``--no-audio``
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``-use-filename-title`` ``--title='${filename}'``
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``-loop 0`` ``--loop=inf``
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``-hardframedrop`` ``--framedrop=hard``
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``-osdlevel`` ``--osd-level``
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``-delay`` ``--audio-delay``
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``-subdelay`` ``--sub-delay``
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``-subpos`` ``--sub-pos``
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``-forcedsubsonly`` ``--sub-forced-only``
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``-benchmark`` ``--untimed`` (no stats)
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``-xineramascreen`` ``--screen`` (different values)
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``-ss`` ``--start``
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``-endpos`` ``--length``
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``-cursor-autohide-delay`` ``--cursor-autohide``
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``-sub-fuzziness`` ``--autosub-match``
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``-subfont`` ``--sub-text-font``
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``-font`` ``--osd-font``
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``-subfont-*`` ``--sub-text-*``, ``--osd-*``
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``-subfont-text-scale`` ``--sub-scale``
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``-spugauss`` ``--sub-gauss``
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``-vobsub`` ``--sub`` (pass the .idx file)
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``-ass-bottom-margin`` ``--vf=sub=bottom:top``
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``-vc ffh264vdpau`` (etc.) ``--hwdec=vdpau``
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``-ac spdifac3`` ``--ad=spdif:ac3`` (see ``--ad=help``)
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``-afm hwac3`` ``--ad=spdif:ac3,spdif:dts``
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``-x W``, ``-y H`` ``--geometry=WxH`` + ``--no-keepaspect``
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``-xy W`` ``--autofit=W``
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``-a52drc level`` ``--ad-lavc-ac3drc=level``
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``-dumpstream`` ``--stream-dump=<filename>``
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``-capture`` ``--stream-capture=<filename>``
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``-stop-xscreensaver`` ``--stop-screensaver``
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``-subfile`` ``--sub``
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``-lavdopts ...`` ``--vd-lavc-...``
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``-lavfdopts`` ``--demuxer-lavf-...``
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``-rawaudio ...`` ``--demuxer-rawaudio-...``
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``-rawvideo ...`` ``--demuxer-rawvideo-...``
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``-mixer`` AO suboptions (``alsa``, ``oss``)
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``-mixer-channel`` AO suboptions (``alsa``, ``oss``)
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``-ao alsa:device=hw=0.3`` ``--ao=alsa:device=[hw:0,3]``
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``-af volnorm`` ``--af=drc`` (renamed)
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``-zoom`` Inverse available as ``--video-unscaled``
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``-panscanrange`` ``--video-zoom``, ``--video-pan-x/y``
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``-pp ...`` ``'--vf=pp=[...]'``
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``-pphelp`` ``--vf=pp:help``
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``-channels`` ``--channels`` (changed semantics)
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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 aspect <ratio>`` |
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| | |
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| | ``set aspect 0`` (to 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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Other
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~~~~~
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* The playtree has been removed. **mpv**'s internal playlist is a simple and
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flat list now. This simplifies the code and makes **mpv** usage less
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confusing.
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* Slave mode is broken. This mode is entirely insane in the ``old`` versions of
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MPlayer. A proper slave mode application needed tons of code 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 **mpv** will not try to keep slave mode
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compatible. If you are a developer of a slave mode application, contact us,
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and a new and better protocol can be developed.
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Policy for Removed Features
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---------------------------
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Features are a good thing, because they make users happy. As such, it is
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attempted to preserve useful features as far as possible. But if a feature is
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likely to be not used by many, and causes problems otherwise, it will be
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removed. Developers should not be burdened with fixing or cleaning up code that
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has no actual use.
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It is always possible to add back removed features. File a feature request if a
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feature you relied on has been removed, and you want it back. Though it might be
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rejected in the worst case, it is much more likely that it will be either added
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back, or that a better solution will be implemented.
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Why this Fork?
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--------------
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* MPlayer wants to maintain old code, even if it is very bad code. It seems
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mplayer2 was forked because MPlayer developers refused to get rid of all the
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cruft. The mplayer2 and MPlayer codebases also deviated enough to make a
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reunification unlikely.
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* mplayer2 development is slow, and it is hard to get in changes. Details
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withheld as to not turn this into a rant.
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* MPlayer rarely merged from mplayer2, and mplayer2 practically stopped
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merging from MPlayer (not even code cleanups or new features are merged)
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* **mpv** intends to continuously merge from mplayer-svn and mplayer2, while
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speeding up development. There is willingness for significant changes, even
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if this means breaking compatibility.
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