--- CV/README	2008/07/08 12:04:04	1.8
+++ CV/README	2021/07/15 00:41:44	1.13
@@ -2,7 +2,15 @@
     cv - a fast gtk+ image viewer loosely modeled after XV
 
 SYNOPSIS
-       cv [file...]
+       cv
+
+       cv directory
+
+       cv path...
+
+       cv -g <glob expression...>
+
+       find .. -print0 | cv -0r
 
 FEATURES
     CV is supposed to work similar to the venerable XV image viewer, just
@@ -99,7 +107,7 @@
      q            quit the program
      <            half the image size
      >            double the image size
-     ,            shrink the image by 10%
+     ,            shrink the image by ~9% (opposite of .)
      .            enlarge the image by 10%
      n            reset to normal size
      m            maximize to screensize
@@ -109,14 +117,15 @@
      u            uncrop
      r            set scaling mode to 'nearest' (fastest)
      s            set scaling mode to 'bilinear' (default)
-     shift-s      set scaling mode to 'hyper' (slowest)
-     t            rotate clockwise 90°
-     T            rotate counterclockwise°
+     t            rotate clockwise 90°
+     T            rotate counterclockwise°
      a            apply all rotations loslessly to a jpeg file (using exiftran)
+     ctrl-shift-t apply current rotation for future image loads
      ctrl-v       open a new visual schnauzer window for the current dir
      ctrl-c       clone the current image window
      ctrl-e       run an editor ($CV_EDITOR or "gimp") on the current image
      ctrl-p       fire up the print dialog
+     ctrl-shift-p same as ctrl-p, but automatically selects "ok"
      escape       cancel a crop action
 
     And when playing movies, these additional keys are active:
@@ -162,7 +171,8 @@
      ctrl-a       select all files
      ctrl-shift-a select all files currently displayed in the schnauzer window
      ctrl-d       delete selected files WITHOUT ASKING AGAIN
-     ctrl-g       force generation of thumbnais for the selected files
+     ctrl-g       force generation of thumbnails for the selected files
+     ctrl-shift-g remove thumbnails for the selected files
      ctrl-s       rescan current direcory or files updates/deletes etc.
      ctrl-u       update selected (or all) icons if neccessary
      ctrl--       unselected thumbnailed images
@@ -217,22 +227,39 @@
     This will load a plug-in, but only if the machine *ether* is reachable
     (supposedly the plug-in is networked in some way :).
 
-ENVIRONMENT
+ENVIRONMENT VARIABLES
     CV_EDITOR
         The program that gets executed when the user presses "CTRL-e" in the
         Schnauzer or image window. The default is "gimp".
 
     CV_AUDIO_PLAYER
+        EXPERIMENTAL: audio playback is now via mpv, this variable is
+        currently ignored.
+
         Program used to play all sorts of audio (wav, aif, mp3, ogg...),
         default "play". Will be called like "$CV_AUDIO_PLAYER -- <path>".
 
+    CV_MPLAYER
+        Program used to play all sorts of video files. Unlike
+        "CV_AUDIO_PLAYER", this really must be some version of the "mpv"
+        programs, or something that is very command-line compatible to them.
+
+        Note: for video-thumbnailing, mplayer is still used (and hardcoded).
+
     CV_PRINT_DESTINATION
         The default (perl-style) destination to use in the print dialog.
 
     CV_TRASHCAN
         When set, must point to a directory where all files that are deleted
-        are moved to. If unset, files that are deleted are really being
-        deleted.
+        by the "Delete Physically" (ctrl-d) action are moved to (other
+        deletion actions still delete!). If unset, files that are deleted
+        are really being deleted.
+
+SIGNALS
+    Sending CV a SIGUSR1 signal will cause all image viewers to reload the
+    currently loaded image. This is useful if you use CV as a viewer for
+    changing data - just run it in the background with some path and each
+    time the image changes, send it a SIGUSR1.
 
 SECURITY CONSIDERATIONS
     CV uses Pixbuf to load non-JPEG images. Pixbuf is not considered safe