mirror of https://github.com/mpv-player/mpv
193 lines
9.5 KiB
ReStructuredText
193 lines
9.5 KiB
ReStructuredText
.. _changes:
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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-svn 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 (don't 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)
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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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* 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)
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* Removal of teletext support
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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. (Planned change.)
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* Slave mode compatibility broken (see below)
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* Encoding functionality (replacement for mencoder)
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(Remove ``--vo=gif89a``, ``--vo=md5sum``, ``--vo=yuv4mpeg``, as encoding can
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handle these use cases.)
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* Image subtitles (DVDs etc.) are rendered in color and use more correct
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positioning
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* General code cleanups
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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's 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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-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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-ni --avi-ni
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-benchmark --untimed (no stats)
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=================================== ===================================
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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, they will be displayed with ``-v`` when it is loaded, and show
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and 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 can't 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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| | set aspect 0 (to reset aspect) |
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+--------------------------------+----------------------------------------+
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| step_property_osd <prop> <step>| cycle <prop> <step> (wraps), |
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| <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> <step> | Prefix cycle or add with no-osd: |
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| <dur> | no-osd cycle <prop> <step> |
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+--------------------------------+----------------------------------------+
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| osd_show_property_text <text> | show_text <text> |
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| | 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. |
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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 makes the code easier, and makes using it less 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's 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're 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's always possible to add back removed features. File a feature request if a
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feature you relied on was removed, and you want it back. Though it might be
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rejected in the worst case, it's 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-svn wants to maintain old code, even if it's very bad code. It seems
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mplayer2 was forked, because mplayer-svn developers refused to get rid of
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all the cruft. The mplayer2 and mplayer-svn codebases also deviated enough to
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make a reunification unlikely.
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* mplayer2 development is slow, and it's hard to get in changes. Details
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withheld as to not turn this into a rant.
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* mplayer-svn rarely merged from mplayer2, and mplayer2 practically stopped
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merging from mplayer-svn (not even code cleanups or new features are merged)
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* **mpv** intents 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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