README: New audio+video interfaces

README.md

@@ -23,9 +23,13 @@ The `cibuilds` branch makes some CI builds of snapshots of `feature` at relevant
 - [`lua_api`](https://github.com/arch1t3cht/Aegisub/tree/lua_api): Add new functions to the Lua automation API, like controlling the selection or cursor in the text edit box
 - [`vector_clip_actions`](https://github.com/arch1t3cht/Aegisub/tree/vector_clip_actions): Make the different modes of the vector clip tool (lines, bezier curves, adding points, etc) bindable to hotkeys
 - [`color_picker_fix2`](https://github.com/arch1t3cht/Aegisub/tree/color_picker_fix2): Add an option (under "Interface") to restrict the color picker to the window, which fixes the color picker on Linux in a lot of cases.
-- [`avisynth`](https://github.com/arch1t3cht/Aegisub/tree/avisynth): Reenable Avisynth support on Windows (Still occasionally crashes)
-- [`bugfixes`](https://github.com/arch1t3cht/Aegisub/tree/bugfixes): Various fixes, mostly relevant for compilation
+- [`avisynth`](https://github.com/arch1t3cht/Aegisub/tree/avisynth): Reenable Avisynth support on Windows and enable Avisynth on Linux
+- [`bestsource`](https://github.com/arch1t3cht/Aegisub/tree/bestsource): Add BestSource audio and video source. This source is slower than others by multiple orders of magnitude, but in exchange it can guarantee exact seeking.
+- [`vapoursynth`](https://github.com/arch1t3cht/Aegisub/tree/vapourssynth): Add Vapoursynth audio and video source
+- [`bugfixes`](https://github.com/arch1t3cht/Aegisub/tree/bugfixes): Various fixes necessary for compilation. Most branches are based on this.
+- [`fixes`](https://github.com/arch1t3cht/Aegisub/tree/fixes): Miscellaneous bugfixes
 - [`misc_dc`](https://github.com/arch1t3cht/Aegisub/tree/misc_dc): Miscellaneous changes taken from AegisubDC
+- [`xa-ds2`](https://github.com/arch1t3cht/Aegisub/tree/xa-ds2): Add XAudio2 backend and allow stereo playback for some other backends, by wangqr and Shinon.
 - [`video_panning_feature`](https://github.com/arch1t3cht/Aegisub/tree/video_panning_feature): Merge [moex3's video zoom and panning](https://github.com/TypesettingTools/Aegisub/pull/150), with an OSX fix and more options to control zoom behavior
 - [`spectrum-frequency-mapping`](https://github.com/arch1t3cht/Aegisub/tree/spectrum-frequency-mapping): Merge EleonoreMizo's [spectrum display improvements](https://github.com/TypesettingTools/Aegisub/pull/94), and also make Shift+Scroll vertically zoom the audio display
 - [`wangqr_time_video`](https://github.com/arch1t3cht/Aegisub/tree/wangqr_time_video): Merge wangqr's feature adding a tool for timing subtitles to changes in the video
@@ -43,7 +47,9 @@ The exact way of switching depends on your Linux distribution, but essentially y
 The changes to `default_config.json` or similar files weren't detected by meson due to missing regen dependencies. You can either merge the `bugfixes` branch or rebuild from scratch.
 
 #### The video is desynced / Frames don't appear at the right time
-This is probably due to the ffms2 seeking bug ([#394](https://github.com/FFMS/ffms2/issues/394)). On Windows, this shouldn't happen anymore. On Linux, you need to install the latest git version of ffms2 - for example the [`ffms2-git`](https://aur.archlinux.org/packages/ffms2-git) AUR package on Arch linux, or just compile it yourself.
+This is probably due to the ffms2 seeking bug ([#394](https://github.com/FFMS/ffms2/issues/394)). On Windows, this specific regression shouldn't happen anymore. On Linux, you need to install the latest git version of ffms2 - for example the [`ffms2-git`](https://aur.archlinux.org/packages/ffms2-git) AUR package on Arch linux, or just compile it yourself.
+
+If it's not because of this particular bug, you can also try an alternative video source like LSMASHSource via Avisynth or Vapoursynth, or BestSource.
 
 #### On Windows: Aegisub crashes whenever I open a video
 If you're compiling yourself, try adding `--force-fallback-for=zlib` to the meson options.