[] (0) Clarify that drawImage() and createPattern() aren't useless wi…

…th anamorphic video.

git-svn-id: http://svn.whatwg.org/webapps@3913 340c8d12-0b0e-0410-8428-c7bf67bfef74

index

 
   <p>When the <var title="">image</var> argument is an
   <code><a href=#htmlvideoelement>HTMLVideoElement</a></code>, then the frame at the <a href=#current-playback-position>current
-  playback position</a> must be used as the source image.</p>
+  playback position</a> must be used as the source image, and the
+  source image's dimensions must be the <a href=#concept-video-intrinsic-width title=concept-video-intrinsic-width>intrinsic width</a> and
+  <a href=#concept-video-intrinsic-height title=concept-video-intrinsic-height>intrinsic height</a>
+  of the <a href=#media-resource>media resource</a> (i.e. after any aspect-ratio
+  correction has been applied).</p>
   <!-- drawImage() has an equivalent paragraph -->
 
   <!--
 
   <p>When the <var title="">image</var> argument is an
   <code><a href=#htmlvideoelement>HTMLVideoElement</a></code>, then the frame at the <a href=#current-playback-position>current
-  playback position</a> must be used as the source image.</p>
+  playback position</a> must be used as the source image, and the
+  source image's dimensions must be the <a href=#concept-video-intrinsic-width title=concept-video-intrinsic-width>intrinsic width</a> and
+  <a href=#concept-video-intrinsic-height title=concept-video-intrinsic-height>intrinsic height</a>
+  of the <a href=#media-resource>media resource</a> (i.e. after any aspect-ratio
+  correction has been applied).</p>
   <!-- createPattern() has an equivalent paragraph -->
 
   <p>Images are painted without affecting the current path, and are

source

 
   <p>When the <var title="">image</var> argument is an
   <code>HTMLVideoElement</code>, then the frame at the <span>current
-  playback position</span> must be used as the source image.</p>
+  playback position</span> must be used as the source image, and the
+  source image's dimensions must be the <span
+  title="concept-video-intrinsic-width">intrinsic width</span> and
+  <span title="concept-video-intrinsic-height">intrinsic height</span>
+  of the <span>media resource</span> (i.e. after any aspect-ratio
+  correction has been applied).</p>
   <!-- drawImage() has an equivalent paragraph -->
 
   <!--
 
   <p>When the <var title="">image</var> argument is an
   <code>HTMLVideoElement</code>, then the frame at the <span>current
-  playback position</span> must be used as the source image.</p>
+  playback position</span> must be used as the source image, and the
+  source image's dimensions must be the <span
+  title="concept-video-intrinsic-width">intrinsic width</span> and
+  <span title="concept-video-intrinsic-height">intrinsic height</span>
+  of the <span>media resource</span> (i.e. after any aspect-ratio
+  correction has been applied).</p>
   <!-- createPattern() has an equivalent paragraph -->
 
   <p>Images are painted without affecting the current path, and are