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https://github.com/mpv-player/mpv.git
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031555fbe6
If this mode is enabled, the player tries to strictly synchronize video to display refresh. It will adjust playback speed to match the display, so if you play 23.976 fps video on a 24 Hz screen, playback speed is increased by approximately 1/1000. Audio wll be resampled to keep up with playback. This is different from the default sync mode, which will sync video to audio, with the consequence that video might skip or repeat a frame once in a while to make video keep up with audio. This is still unpolished. There are some major problems as well; in particular, mkv VFR files won't work well. The reason is that Matroska is terrible and rounds timestamps to milliseconds. This makes it rather hard to guess the framerate of a section of video that is playing. We could probably fix this by just accepting jittery timestamps (instead of explicitly disabling the sync code in this case), but I'm not ready to accept such a solution yet. Another issue is that we are extremely reliant on OS video and audio APIs working in an expected manner, which of course is not too often the case. Consequently, the new sync mode is a bit fragile.
87 lines
3.8 KiB
ReStructuredText
87 lines
3.8 KiB
ReStructuredText
Introduction
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============
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mpv provides access to its internal via the following means:
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- options
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- commands
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- properties
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- events
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All of these are important for interfacing both with end users and API users
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(which include Lua scripts, libmpv, and the JSON IPC). As such, they constitute
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a large part of the user interface and APIs.
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This document lists changes to them. New changes are added to the top.
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Interface changes
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=================
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::
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--- mpv 0.10.0 will be released ---
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- add --video-sync* options
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"display-sync-active" property
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"vo-missed-frame-count" property
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"audio-speed-correction" and "video-speed-correction" properties
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- remove --demuxer-readahead-packets and --demuxer-readahead-bytes
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add --demuxer-max-packets and --demuxer-max-bytes
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(the new options are not replacement and have very different semantics)
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- change "video-aspect" property: always settable, even if no video is
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running; always return the override - if no override is set, return
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the video's aspect ratio
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- remove disc-nav (DVD, BD) related properties and commands
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- add "option-info/<name>/set-locally" property
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- add --cache-backbuffer; change --cache-default default to 75MB
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the new total cache size is the sum of backbuffer and the cache size
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specified by --cache-default or --cache
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- add ``track-list/N/audio-channels`` property
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- change --screenshot-tag-colorspace default value
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- add --stretch-image-subs-to-screen
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- add "playlist/N/title" property
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- add --video-stereo-mode=no to disable auto-conversions
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- add --force-seekable, and change default seekability in some cases
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- add vf yadif/vavpp/vdpaupp interlaced-only suboptions
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Also, the option is enabled by default (Except vf_yadif, which has
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it enabled only if it's inserted by the deinterlace property.)
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- add --hwdec-preload
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- add ao coreaudio exclusive suboption
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- add ``track-list/N/forced`` property
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- add audio-params/channel-count and ``audio-params-out/channel-count props.
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- add af volume replaygain-fallback suboption
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- add video-params/stereo-in property
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- add "keypress", "keydown", and "keyup" commands
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- deprecate --ad-spdif-dtshd and enabling passthrough via --ad
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add --audio-spdif as replacement
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- remove "get_property" command
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- remove --slave-broken
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- add vo opengl custom shader suboptions (source-shader, scale-shader,
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pre-shaders, post-shaders)
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- completely change how the hwdec properties work:
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- "hwdec" now reflects the --hwdec option
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- "hwdec-detected" does partially what the old "hwdec" property did
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(and also, "detected-hwdec" is removed)
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- "hwdec-active" is added
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- add protocol-list property
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- deprecate audio-samplerate and audio-channels properties
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(audio-params sub-properties are the replacement)
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- add audio-params and audio-out-params properties
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- deprecate "audio-format" property, replaced with "audio-codec-name"
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- deprecate --media-title, replaced with --force-media-title
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- deprecate "length" property, replaced with "duration"
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- change volume property:
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- the value 100 is now always "unchanged volume" - with softvol, the
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range is 0 to --softvol-max, without it is 0-100
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- the minimum value of --softvol-max is raised to 100
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- remove vo opengl npot suboption
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- add relative seeking by percentage to "seek" command
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- add playlist_shuffle command
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- add --force-window=immediate
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- add ao coreaudio change-physical-format suboption
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- remove vo opengl icc-cache suboption, add icc-cache-dir suboption
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- add --screenshot-directory
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- add --screenshot-high-bit-depth
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- add --screenshot-jpeg-source-chroma
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- default action for "rescan_external_files" command changes
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--- mpv 0.9.0 is released ---
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