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Command line video player
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wm4 871a8a316a demux: avoid queue overflow warning when joining two ranges
If the backbuffer is much larger than the forward buffer, and if you
join a small range with a large range (larger than the forward buffer),
then the seek issues to the end of the range after joining will overflow
the queue.

Normally, read_more will be false when the forward buffer is full, but
the resume seek after joining will set need_refresh to true, which
forces more reading and thus triggers the overfloe warning.

Attempt to fix this by not setting read_more to true on refresh seeks.
Set prefetch_more instead. read_more will still be set if an A/V stream
has no data.

This doesn't help with the following problems related to using refresh
seeks for track switching:

- If the forward buffer is full, then enabling another track will
  obviously immediately overflow the queue, and immediately lead to
  marking the new track as having no more data (i.e. EOF). We could cut
  down the forward buffer or so, but there's no simple way to implement
  it. Another possibility would be dropping all buffers and trying to
  resume again, but this would likely be complex as well.
- Subtitle tracks will not even show a warning (because they are sparse,
  and we have no way of telling whether a packet is missing, or there's
  just no packet near the current position). Before this commit,
  enabling an empty subtitle track would probably have overflown the
  queue, because ds->refreshing was never set to true. Possibly this
  could be solved by determining a demuxer read position, which would
  reflect until which PTS all subtitle packets should have been demuxed.

The forward buffer limit was intended as a last safeguard to avoid
excessive memory usage against badly interleaved files or decoders going
crazy (up to reading the whole into memory and OOM'ing the user's
system). It's not good at all to limit prefetch. Possibly solutions
include having another smaller limit for prefetch, or maybe having only
a total buffer limit, and discarding back buffer if more data has to be
read. The current solution is making the forward buffer larger than the
forward duration (--cache-secs) would require, but of course this
depends on the stream's bitrate.
2017-11-11 06:23:50 +01:00
.github github: Google Drive sucks 2017-10-19 18:45:05 +02:00
audio build: make it easier to force FFmpeg upstream 2017-11-01 16:50:18 +01:00
common build: make it easier to force FFmpeg upstream 2017-11-01 16:50:18 +01:00
demux demux: avoid queue overflow warning when joining two ranges 2017-11-11 06:23:50 +01:00
DOCS demux: export demuxer cache sizes in bytes 2017-11-10 16:43:18 +01:00
etc osc: make cycling visibility an input.conf key binding 2017-11-03 14:41:18 +01:00
input build: add preliminary LGPL mode 2017-09-21 13:56:27 +02:00
libmpv client API: minor bump + change entry for DRM related opengl-cb changes 2017-10-23 21:11:44 +02:00
misc m_option: pretty print mpv_node for OSD 2017-10-30 15:32:24 +01:00
options vo_gpu: hwdec_d3d11va: allow zero-copy video decoding 2017-11-07 20:27:13 +11:00
osdep win32: add more-POSIXy versions of open() and fstat() 2017-10-25 22:37:20 +11:00
player demux: export demuxer cache sizes in bytes 2017-11-10 16:43:18 +01:00
stream stream_libarchive: stop reading on ARCHIVE_FATAL 2017-11-02 18:47:05 +01:00
sub osd: don't skip leading whitespace on the first line either 2017-11-02 16:46:09 +01:00
ta Fix use of ISC license 2017-04-15 16:20:00 +02:00
test tests: fix include after 6597998 2017-10-17 09:29:02 +02:00
TOOLS appveyor: update ffmpeg and test d3d11/vulkan 2017-11-08 07:22:54 +11:00
video vo_gpu: never pass flipped images to ra or ra backends 2017-11-10 10:06:33 +01:00
waftools win32: add more-POSIXy versions of open() and fstat() 2017-10-25 22:37:20 +11:00
.gitignore player: move builtin profiles to a separate file 2016-09-15 14:50:38 +02:00
.travis.yml travis: correctly remove ffmpeg-stable from build matrix 2017-10-27 18:23:39 +02:00
appveyor.yml appveyor: update ffmpeg and test d3d11/vulkan 2017-11-08 07:22:54 +11:00
bootstrap.py build: update waf 2017-02-17 18:54:21 +01:00
Copyright player: change license of some code surrounding --frames to LGPL 2017-11-06 20:53:27 +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
mpv_talloc.h
README.md build: make it easier to force FFmpeg upstream 2017-11-01 16:50:18 +01:00
RELEASE_NOTES RELEASE_NOTES: remove old releases 2017-09-18 22:49:20 +02:00
VERSION Update VERSION 2017-09-13 03:42:28 +02:00
version.sh version.sh: append -dirty if the working tree contains modifications 2017-06-16 17:20:44 +02:00
wscript vo_gpu: d3d11: enhance cache invalidation 2017-11-07 20:27:13 +11:00
wscript_build.py vo_gpu: d3d11: initial implementation 2017-11-07 20:27:13 +11:00

http://mpv.io/

mpv


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, or Windows 7 or later, or OSX 10.8 or later.
  • A somewhat capable CPU. Hardware decoding might sometimes help if the CPU is too slow to decode video 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.

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 your source tree. The script './bootstrap.py' 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) from ffmpeg-mpv or Libav
  • 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)
  • 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. However, FFmpeg is an exception - ffmpeg-mpv or Libav git master is required. 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 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).

Preferred FFmpeg version

Only ffmpeg-mpv is supported. Upstream FFmpeg can be forced by passing a certain switch to configure, but compilation or runtime behavior might be broken at times.

If you force upstream FFmpeg, and it doesn't work, please contact upstream FFmpeg for help, instead of mpv. See [FFmpeg contact][http://ffmpeg.org/contact.html#MailingLists] how to contact FFmpeg upstream.

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.