05ae571241
Although seeking past the cached range will trigger a low level seek, a seek into the region between cache end and last video key frame would simply seek to the video key frame. This meant that you could get "stuck" at the end of the file instead of terminating playback when trying to seek past the end. One change is that we fix this by _actually_ allowing SEEK_FORWARD to seek past the last video keyframe in find_seek_target(). In that case, or otherwise seeking to cache buffer end, it could happen that we set ds->reader_head=NULL if the seek target is after the current packet. We allow this, because the end of the cached region is defined by the existence of "any" packet, not necessarily a key frame. Seeking there still makes sense, because we know that there is going to be more packets (or EOF) that satisfy the seek target. The problem is that just resuming demuxing with reader_head==NULL will simply return any packets that come its way, even non-keyframe ones. Some decoders will produce ugly soup in this case. (In practice, this was not a problem, because seeking at the end of the cached region was rare before this commit, and also some decoders like h264 will skip broken frames by default anyway.) So the other change of this commit is to enable key frame skipping. As a nasty implementation detail, we use a separate flag, instead of setting reader_head to the first key frame encounted (reader_head being NULL can happen after a normal seek or on playback start, and then we want to mirror the underlying demuxer behavior, for better or worse). This change is relatively untested, so you get to keep the pieces for yourself. |
||
|---|---|---|
| .github | ||
| audio | ||
| common | ||
| demux | ||
| DOCS | ||
| etc | ||
| input | ||
| libmpv | ||
| misc | ||
| options | ||
| osdep | ||
| player | ||
| stream | ||
| sub | ||
| ta | ||
| test | ||
| TOOLS | ||
| video | ||
| waftools | ||
| .gitignore | ||
| .travis.yml | ||
| appveyor.yml | ||
| bootstrap.py | ||
| Copyright | ||
| LICENSE.GPL | ||
| LICENSE.LGPL | ||
| mpv_talloc.h | ||
| README.md | ||
| RELEASE_NOTES | ||
| VERSION | ||
| version.sh | ||
| wscript | ||
| wscript_build.py | ||
mpv
- Overview
- Downloads
- Changelog
- Compilation
- FFmpeg vs. Libav
- Release cycle
- Bug reports
- Contributing
- Relation to MPlayer and mplayer2
- Wiki
- FAQ
- Man pages
- Contact
- License
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
--hwdecoption. - 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=xvon 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) At least FFmpeg 3.2.2 or Libav 12 is required. For hardware decoding with vaapi and vdpau, FFmpeg 3.3 or Libav git is required.
- 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) (FFmpeg 3.3 or Libav git is also required.)
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.)
- FFmpeg/Libav git for Windows/D3D11 and Cuda decoding.
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 well or at all). 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
Using the latest FFmpeg release (or FFmpeg git master) is strongly recommended. Older versions are unsupported, even if the build system still happens to accept them. The main reason mpv still builds with older FFmpeg versions is to evade arguing with people (users, distros) who insist on using older FFmpeg versions for no rational reason.
If you want to use a stable FFmpeg release, use the latest release, which has most likely the best maintenance out of all stable releases. Older releases are for distros, and at best receive basic changes, like fixing critical security issues or build fixes, and at worst are completely abandoned.
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:
#mpvonirc.freenode.net - Developer IRC Channel:
#mpv-develonirc.freenode.net
To contact the mpv team in private write to mpv-team@googlegroups.com. Use
only if discretion is required.