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Command line video player
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wm4 e1b4e5e727 mp_image: fix UB with certain callers like vf_vdpaupp 
vf_vdpaupp crashed on certain files (with --hwdec=vdpau --deinterlace).
This happened for example with mpeg2 files, which for some reason
typically contain some AVFrame side data. It turns out the last change
in 55c88fdb8f was not quite clean, and forgot the special cases in
mp_image_new_dummy_ref(). This function is supposed to copy all metadata
from the argument passed, except buffer refs. But there were new buffer
refs, that were not cleared properly. Also, the ff_side_data pointer
must be cleared, or the new mp_image would try to free it on
destruction.

The bottom line is that mp_image_new_dummy_ref() is a pretty bad idea,
and I suppose all callers with non-NULL arguments should be changed to
create a blank mp_image, and copy frame properties as needed (this
includes callers of mp_image_new_custom_ref()).

Fixes #5630.
 		2018-03-15 23:13:53 -07:00
.github github: recommend 0x0.st rather than sprunge.us for logfiles 2018-02-16 00:59:25 -08:00
DOCS DOCS/options: clarify that --end also supports relative time 2018-03-15 14:20:12 +00:00
TOOLS TOOLS/autoload: be more robust with slow directory listings 2018-03-10 12:46:41 +00:00
audio ao_sdl: fix default buffer size 2018-03-08 17:12:32 -08:00
common mp_image: replace rude function with less rude FFmpeg upstream function 2018-03-03 02:38:01 +02:00
demux demux: fix comment typo 2018-03-11 22:13:12 -07:00
etc input: minor additions to default key bindings 2018-03-04 16:27:49 -08:00
filters audio: improve behavior if filters output nothing during probing 2018-02-21 22:35:24 -08:00
input all: replace mpv_detach_destroy() with mpv_destroy() 2018-03-15 00:00:04 -07:00
libmpv client API: send MPV_EVENT_SHUTDOWN only once 2018-03-15 00:00:04 -07:00
misc m_option: pretty print mpv_node for OSD 2017-10-30 15:32:24 +01:00
options video: add option to reduce latency by 1 or 2 frames 2018-03-03 02:38:01 +02:00
osdep all: replace mpv_detach_destroy() with mpv_destroy() 2018-03-15 00:00:04 -07:00
player client API: send MPV_EVENT_SHUTDOWN only once 2018-03-15 00:00:04 -07:00
stream stream_file: enable cache for FUSE filesystems on OS X 2018-03-15 03:35:13 -07:00
sub sub/osd: remove limits from border and shadow size options 2018-01-24 19:40:22 +00:00
ta ta: introduce talloc_dup() and use it in some places 2018-01-18 01:42:36 -08:00
test tests: stop comparing floats against DBL_EPSILON, use FLT_EPSILON 2018-02-03 13:56:08 -08:00
video mp_image: fix UB with certain callers like vf_vdpaupp 2018-03-15 23:13:53 -07:00
waftools build: fix swift build with waf 1.8.4 2018-03-11 22:44:26 -07:00
.gitignore
…
.travis.yml Fix recent FFmpeg deprecations 2018-02-13 17:45:29 -08:00
Copyright Copyright: fix missing word 2018-01-31 03:50:22 +01:00
LICENSE.GPL Copyright: some more licensing clarifications 2017-10-13 15:44:55 +02:00
LICENSE.LGPL Copyright: some more licensing clarifications 2017-10-13 15:44:55 +02:00
README.md README: mention some semi-required FFmpeg dependencies 2018-03-03 02:38:01 +02:00
RELEASE_NOTES Release 0.28.0 2017-12-25 00:18:05 +01:00
VERSION Update VERSION 2017-12-25 00:23:13 +01:00
appveyor.yml appveyor: trigger build on pushing to 'ci' 2018-02-11 18:13:12 -08:00
bootstrap.py
…
mpv_talloc.h
…
version.sh build: move copyright statement to a shared location 2018-01-01 21:05:09 +00:00
wscript mp_image: replace rude function with less rude FFmpeg upstream function 2018-03-03 02:38:01 +02:00
wscript_build.py build: fix swift build with waf 1.8.4 2018-03-11 22:44:26 -07:00

README.md

http://mpv.io/

mpv

External links

Overview

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

Releases can be found on the release list.

System requirements

  • A not too ancient Linux, Windows 7 or later, or OSX 10.8 or later.
  • A somewhat capable CPU. Hardware decoding might help if the CPU is too slow to decode video in realtime, but must be explicitly enabled with the --hwdec option.
  • A not too crappy GPU. mpv is not intended to be used with bad GPUs. There are many caveats with drivers or system compositors causing tearing, stutter, etc. On Windows, you might want to make sure the graphics drivers are current. In some cases, ancient fallback video output methods can help (such as --vo=xv on Linux), but this use is not recommended or supported.

Downloads

For semi-official builds and third-party packages please see mpv.io/installation.

Changelog

There is no complete changelog; however, changes to the player core interface are listed in the interface changelog.

Changes to the C API are documented in the client API changelog.

The release list has a summary of most of the important changes on every release.

Changes to the default key bindings are indicated in restore-old-bindings.conf.

Compilation

Compiling with full features requires development files for several external libraries. Below is a list of some important requirements.

The mpv build system uses waf, but we don't store it in the repository. The ./bootstrap.py script will download the latest version of waf that was tested with the build system.

For a list of the available build options use ./waf configure --help. If you think you have support for some feature installed but configure fails to detect it, the file build/config.log may contain information about the reasons for the failure.

NOTE: To avoid cluttering the output with unreadable spam, --help only shows one of the two switches for each option. If the option is autodetected by default, the --disable-*** switch is printed; if the option is disabled by default, the --enable-*** switch is printed. Either way, you can use --enable-*** or --disable-** regardless of what is printed by --help.

To build the software you can use ./waf build: the result of the compilation will be located in build/mpv. You can use ./waf install to install mpv to the prefix after it is compiled.

Example:

./bootstrap.py
./waf configure
./waf
./waf install

Essential dependencies (incomplete list):

  • gcc or clang
  • X development headers (xlib, xrandr, xext, xscrnsaver, xinerama, libvdpau, libGL, GLX, EGL, xv, ...)
  • Audio output development headers (libasound/ALSA, pulseaudio)
  • FFmpeg libraries (libavutil libavcodec libavformat libswscale libavfilter and either libswresample or libavresample)
  • zlib
  • iconv (normally provided by the system libc)
  • libass (OSD, OSC, text subtitles)
  • Lua (optional, required for the OSC pseudo-GUI and youtube-dl integration)
  • libjpeg (optional, used for screenshots only)
  • uchardet (optional, for subtitle charset detection)
  • vdpau and vaapi libraries for hardware decoding on Linux (optional)

Libass dependencies:

  • gcc or clang, yasm on x86 and x86_64
  • fribidi, freetype, fontconfig development headers (for libass)
  • harfbuzz (optional, required for correct rendering of combining characters, particularly for correct rendering of non-English text on OSX, and Arabic/Indic scripts on any platform)

FFmpeg dependencies:

  • gcc or clang, yasm on x86 and x86_64
  • OpenSSL or GnuTLS (have to be explicitly enabled when compiling FFmpeg)
  • libx264/libmp3lame/libfdk-aac if you want to use encoding (have to be explicitly enabled when compiling FFmpeg)
  • For native DASH playback, FFmpeg needs to be built with --enable-libxml2 (although there are security implications).
  • For good nvidia support on Linux, make sure nv-codec-headers is installed and can be found by configure.
  • Libav also works, but some features will not work. (See section below.)

Most of the above libraries are available in suitable versions on normal Linux distributions. For ease of compiling the latest git master of everything, you may wish to use the separately available build wrapper (mpv-build) which first compiles FFmpeg libraries and libass, and then compiles the player statically linked against those.

If you want to build a Windows binary, you either have to use MSYS2 and MinGW, or cross-compile from Linux with MinGW. See Windows compilation.

FFmpeg vs. Libav

Generally, mpv should work with the latest release as well as the git version of both FFmpeg and Libav. But FFmpeg is preferred, and some mpv features work with FFmpeg only (subtitle formats in particular).

FFmpeg ABI compatibility

mpv does not support linking against FFmpeg versions it was not built with, even if the linked version is supposedly ABI-compatible with the version it was compiled against. Expect malfunctions, crashes, and security issues if you do it anyway.

The reason for not supporting this is because it creates far too much complexity with little to no benefit, coupled with absurd and unusable FFmpeg API artifacts.

Newer mpv versions will refuse to start if runtime and compile time FFmpeg library versions mismatch.

Release cycle

Every other month, an arbitrary git snapshot is made, and is assigned a 0.X.0 version number. No further maintenance is done.

The goal of releases is to make Linux distributions happy. Linux distributions are also expected to apply their own patches in case of bugs and security issues.

Releases other than the latest release are unsupported and unmaintained.

See the release policy document for more information.

Bug reports

Please use the issue tracker provided by GitHub to send us bug reports or feature requests. Follow the template's instructions or the issue will likely be ignored or closed as invalid.

Using the bug tracker as place for simple questions is fine but IRC is recommended (see Contact below).

Contributing

Please read contribute.md.

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.

You can check the wiki or the issue tracker for ideas on what you could contribute with.

Relation to MPlayer and mplayer2

mpv is a fork of MPlayer. Much has changed, and in general, mpv should be considered a completely new program, rather than a MPlayer drop-in replacement.

For details see FAQ entry.

If you are wondering what's different from mplayer2 and MPlayer, an incomplete and largely unmaintained list of changes is located here.

License

GPLv2 "or later" by default, LGPLv2.1 "or later" with --enable-lgpl. See details.

Contact

Most activity happens on the IRC channel and the github issue tracker.

  • GitHub issue tracker: issue tracker (report bugs here)
  • User IRC Channel: #mpv on irc.freenode.net
  • Developer IRC Channel: #mpv-devel on irc.freenode.net

To contact the mpv team in private write to mpv-team@googlegroups.com. Use only if discretion is required.