1
0
mirror of https://github.com/mpv-player/mpv synced 2024-12-28 18:12:22 +00:00
Command line video player
Go to file
wm4 5e727c314e stream: fix bad cache behavior introduced by recent commit
Commit 4d14a42, a seemingly harmless change, introduced very bad cache
behavior when the cache isn't forked, such as on Windows, where it uses
threads. Apparently the cache code was designed for forking, and an
unknown obscure condition causes severe performance degradation if a
STREAM_CTRL is sent to the cache on every frame.

Since the cache code is literally insane (uses shared memory + fork(),
and has hacks to make it work with threads, is messed into the stream
code in extra-hacky ways), we just fix it by caching the STREAM_CTRL in
question.

This is also done for some other STREAM_CTRLs that are called on each
frame, such as playback duration. This indicates that the cache code has
some inherent problem with answering such requests in a timely matter,
and that there's no easy way around this.

(Even if the cache is eventually rewritten, these things will probably
have to be cached, otherwise you'd have to forcibly block until the
stream implementation is done with a blocking read. The real question
is why it worked fine with the forked cache, though.)
2013-05-05 21:50:43 +02:00
audio encoding: fix final audio frame sync 2013-04-28 11:39:38 +02:00
compat compat: remove an unused symbol 2013-04-26 20:45:39 +02:00
core core: add playback resume feature (manual/opt-in) 2013-05-05 20:08:11 +02:00
demux demux: use talloc for packets 2013-05-05 18:44:24 +02:00
DOCS core: add playback resume feature (manual/opt-in) 2013-05-05 20:08:11 +02:00
etc core: add playback resume feature (manual/opt-in) 2013-05-05 20:08:11 +02:00
osdep mp_msg: fix status output disappearing when redirecting INPUT. 2013-03-18 20:33:29 +01:00
stream stream: fix bad cache behavior introduced by recent commit 2013-05-05 21:50:43 +02:00
sub subreader: fix out of bound write access when parsing .srt 2013-04-30 00:14:26 +02:00
TOOLS change reverse DNS strings to io.mpv.* 2013-04-16 23:34:58 +02:00
video csputils: use AVCOL_SPC_YCOCG instead of AVCOL_SPC_YCGCO (fixes Libav build) 2013-05-05 18:44:23 +02:00
.gitignore vo_opengl: split into multiple files, convert to new option API 2013-03-28 21:46:17 +01:00
AUTHORS documentation: remove Changelog, rewrite README 2011-02-15 12:04:32 +02:00
configure wayland: use new function xkb_keymap_from_buffer 2013-05-02 21:01:19 +02:00
Copyright Copyright: cleanup entries for removed code 2013-02-03 16:53:49 +01:00
LICENSE Copyright, LICENSE: change binary license to GPL 3 2011-03-24 23:40:29 +02:00
Makefile osd: convert OSD font to OpenType 2013-04-27 18:03:19 +02:00
README.rst README: add a new one using ReST 2013-01-07 21:09:11 +01:00
talloc.c talloc: fix strndup group of functions 2012-10-12 10:10:32 +02:00
talloc.h clang: fix all warnings except deprecations 2012-11-13 22:19:18 +01:00
version.sh version.sh: fix git rev. generation (.git is not always a directory) 2013-02-06 23:03:37 +01:00

mpv
###

Overview
========

**mpv** is a movie player based on MPlayer and mplayer2. It supports a wide
variety of video file formats, audio and video codecs, and subtitle types.

If you are wondering what's different from mplayer2 and MPlayer you can read
more about the changes_.

Compilation
===========

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.

Essential dependencies (incomplete list):

- gcc or clang
- X development headers (xlib, X extensions, libvdpau, libGL, libXv, ...)
- Audio output development headers (libasound, pulseaudio)
- fribidi, freetype, fontconfig development headers (for libass)
- libass
- FFmpeg libraries (libavutil libavcodec libavformat libswscale libpostproc)
- libjpeg
- libquvi if you want to play Youtube videos directly
- libx264 if you want to use encoding (has to be explicitly enabled when
  compiling ffmpeg)

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 (mpv-build_) that first compiles FFmpeg
libraries and libass, and then compiles the player statically linked against
those.

If you are running Mac OSX and using homebrew we provide homebrew-mpv_, an up
to date formula that compiles mpv with sensible dependencies and defaults for
OSX.

Bug reports
===========

Please use the `issues tracker`_ provided by GitHub to send us bug reports or
feature requests.

Contributing
============

For small changes you can just send us pull requests through GitHub. For bigger
changes come and talk to us on IRC before you start working on them. It will
make code review easier for both parties later on.

Contacts
========

You can find us on IRC in ``#mpv-player`` on ``irc.freenode.net``

.. _changes: https://github.com/mpv-player/mpv/blob/master/DOCS/man/en/changes.rst
.. _mpv-build: https://github.com/mpv-player/mpv-build
.. _homebrew-mpv: https://github.com/mpv-player/homebrew-mpv
.. _issues tracker: https://github.com/mpv-player/mpv/issues