mirror of https://github.com/mpv-player/mpv
94782e464d
Options parsing used to be ambiguous, as in the splitting into option
and values pairs was ambiguous. Example:
-option -something
It wasn't clear whether -option actually takes an argument or not. The
string "-something" could either be a separate option, or an argument
to "-option". The code had to call the option specific parser function
to resolve this.
This made everything complicated and didn't even have a real use. There
was only one case where this was actually used: string lists
(m_option_type_string_list) and options based on it. That is because
this option type actually turns a single option into a proxy for several
real arguments, e.g. "vf*" can handle "-vf-add" and "-vf-clr". Options
suffixed with "-clr" are the only options of this group which take no
arguments.
This is ambiguous only with the "old syntax" (as shown above). The "new"
option syntax always puts option name and value into same argument.
(E.g. "--option=--something" or "--option" "--something".)
Simplify the code by making it statically known whether an option takes
a parameter or not with the flag M_OPT_TYPE_OLD_SYNTAX_NO_PARAM. If it's
set, the option parser assumes the option takes no argument.
The only real ambiguity left, string list options that end on "-clr",
are special cased in the parser.
Remove some duplication of the logic in the command line parser by
moving all argument splitting logic into split_opt(). (It's arguable
whether that can be considered code duplication, but now the code is a
bit simpler anyway. This might be subjective.)
Remove the "ambiguous" parameter from all option parsing related code.
Make m_config unaware of the pre-parsing concept.
Make most CONF_NOCFG options also CONF_GLOBAL (except those explicitly
usable as per-file options.)
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|---|---|---|
| DOCS | ||
| TOOLS | ||
| debian | ||
| etc | ||
| ffmpeg_files | ||
| input | ||
| libaf | ||
| libao2 | ||
| libmpcodecs | ||
| libmpdemux | ||
| libvo | ||
| loader | ||
| osdep | ||
| rpm | ||
| stream | ||
| sub | ||
| timeline | ||
| .gitignore | ||
| AUTHORS | ||
| Copyright | ||
| LICENSE | ||
| Makefile | ||
| README | ||
| asxparser.c | ||
| asxparser.h | ||
| av_log.c | ||
| av_log.h | ||
| av_opts.c | ||
| av_opts.h | ||
| bstr.c | ||
| bstr.h | ||
| cfg-mplayer.h | ||
| codec-cfg.c | ||
| codec-cfg.h | ||
| command.c | ||
| command.h | ||
| configure | ||
| cpudetect.c | ||
| cpudetect.h | ||
| defaultopts.c | ||
| defaultopts.h | ||
| fmt-conversion.c | ||
| fmt-conversion.h | ||
| m_config.c | ||
| m_config.h | ||
| m_option.c | ||
| m_option.h | ||
| m_property.c | ||
| m_property.h | ||
| m_struct.c | ||
| m_struct.h | ||
| mangle.h | ||
| metadata.h | ||
| mixer.c | ||
| mixer.h | ||
| mp_core.h | ||
| mp_fifo.c | ||
| mp_fifo.h | ||
| mp_msg.c | ||
| mp_msg.h | ||
| mp_osd.h | ||
| mpbswap.h | ||
| mpcommon.c | ||
| mpcommon.h | ||
| mplayer.c | ||
| mplayer.h | ||
| options.h | ||
| parser-cfg.c | ||
| parser-cfg.h | ||
| parser-mpcmd.c | ||
| parser-mpcmd.h | ||
| path.c | ||
| path.h | ||
| playlist.c | ||
| playlist.h | ||
| playlist_parser.c | ||
| playlist_parser.h | ||
| pnm_loader.c | ||
| pnm_loader.h | ||
| screenshot.c | ||
| screenshot.h | ||
| subopt-helper.c | ||
| subopt-helper.h | ||
| talloc.c | ||
| talloc.h | ||
| version.sh | ||
README
Compiling with full features requires development files for several external libraries. Below is a list of some important requirements. For more information see the output of './configure --help' for a list of options, or look at the list of enabled and disabled features printed after running './configure'. If you think you have support for some feature installed but configure fails to detect it, the file config.log may contain information about the reasons for the failure. Libraries specific to particular video output methods (you'll want at least one of VDPAU, GL or Xv): - libvdpau (for VDPAU output, best choice for NVIDIA cards) - libGL (OpenGL output) - libXv (XVideo output) general: - libasound (ALSA audio output) - various general X development libraries - libfreetype (for libass) - libfontconfig (for libass) - libass - FFmpeg libraries (libavutil libavcodec libavformat libswscale libpostproc) Most of the above libraries are available in suitable versions on normal Linux distributions. However FFmpeg is an exception (distro versions may be too old to work at all or work well). For that reason you may want to use the separately available build wrapper that first compiles FFmpeg libraries and libass, and then compiles the player statically linked against those.