Merge branch 'main' of github.com:floe/surfacestreams

Author: floe

README.md

@@ -67,6 +67,11 @@ If you want to use a different STUN server than the default (stun://stun.l.googl
 ```
 Can be used to give a label (e.g. "Alice" or "Bob") to the frontstream.
 
+```
+  --persp PERSPECTIVE   perspective transformation
+```
+Can be used to "outsource" the perspective transformation of the surface feed to the server. PERSPECTIVE needs to be a transformation matrix as nine comma-separated float values in row-major order. Note: when your perspective transform happens to start with a minus, the argument parser gets confused. Use it with an explicit equals sign as in `--persp="-1,0,0,1,0,0,0,0,1"`.
+
 ## Server
 
 ```
@@ -92,7 +97,8 @@ If you want to use a different STUN server than the default (stun://stun.l.googl
 * HTML5 client
   * Chrome 92 - 102
   * Firefox 94 - 96
-  * Firefox 78 ESR (Note: remember to enable OpenH264 plugin in `about:plugins`)
+  * Safari 15 - 16
+  * Firefox 78 ESR, 102 ESR (Note: remember to enable OpenH264 plugin in `about:plugins`)
   * Chromium (Note: remember to install `chromium-codecs-ffmpeg-extra`, see [issue #8](https://github.com/floe/surfacestreams/issues/8))
 
 ## Known issues