From 8329ec935f43d081efc8b857a47e027d1933fa62 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Eero=20H=C3=A4kkinen?= <eero.hakkinen@intel.com>
Date: Tue, 18 Aug 2020 22:47:47 +0300
Subject: [PATCH] Clarify pan/tilt/zoom settings (#245)

---
 index.bs | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/index.bs b/index.bs
index fa5c88e..aeb3147 100644
--- a/index.bs
+++ b/index.bs
@@ -682,7 +682,10 @@ When the {{getSettings()}} method is invoked on a video stream track, the user a
   <dd>This reflects the current <a>contrast</a> setting of the camera.</dd>
 
   <dt><dfn dict-member for="MediaTrackSettings"><code>pan</code></dfn></dt>
-  <dd>This reflects the current <a>pan</a> setting of the camera.</dd>
+  <dd>This reflects the current <a>pan</a> setting of the camera.
+
+  If the track has been created without <a>requesting permission to use</a> (as defined in [[!permissions]]) a PermissionDescriptor with its name member set to {{PermissionName/camera}} and its {{CameraDevicePermissionDescriptor/panTiltZoom}} member set to true or if that permission request is denied, the track does not support <a>pan</a>.
+  In that case the UA MUST NOT expose the <a>pan</a> setting.</dd>
 
   <dt><dfn dict-member for="MediaTrackSettings"><code>saturation</code></dfn></dt>
   <dd>This reflects the current <a>saturation</a> setting of the camera.</dd>
@@ -694,10 +697,16 @@ When the {{getSettings()}} method is invoked on a video stream track, the user a
   <dd>This reflects the current <a>focus distance</a> setting of the camera.</dd>
 
   <dt><dfn dict-member for="MediaTrackSettings"><code>tilt</code></dfn></dt>
-  <dd>This reflects the current <a>tilt</a> setting of the camera.</dd>
+  <dd>This reflects the current <a>tilt</a> setting of the camera.
+
+  If the track has been created without <a>requesting permission to use</a> (as defined in [[!permissions]]) a PermissionDescriptor with its name member set to {{PermissionName/camera}} and its {{CameraDevicePermissionDescriptor/panTiltZoom}} member set to true or if that permission request is denied, the track does not support <a>tilt</a>.
+  In that case the UA MUST NOT expose the <a>tilt</a> setting.</dd>
 
   <dt><dfn dict-member for="MediaTrackSettings"><code>zoom</code></dfn></dt>
-  <dd>This reflects the current <a>zoom</a> setting of the camera.</dd>
+  <dd>This reflects the current <a>zoom</a> setting of the camera.
+
+  If the track has been created without <a>requesting permission to use</a> (as defined in [[!permissions]]) a PermissionDescriptor with its name member set to {{PermissionName/camera}} and its {{CameraDevicePermissionDescriptor/panTiltZoom}} member set to true or if that permission request is denied, the track does not support <a>zoom</a>.
+  In that case the UA MUST NOT expose the <a>zoom</a> setting.</dd>
 
   <dt><dfn dict-member for="MediaTrackSettings"><code>torch</code></dfn></dt>
   <dd>Current camera <a>torch</a> configuration setting.</dd>