Merge remote-tracking branch 'qatar/master'

* qatar/master:
  doc: Improve suggested Emacs settings for our coding style.
  utvideo: Remove unused variable 'src_size'
  mov: free memory on header parsing failure
  mov: fix leaking memory with multiple drefs.
  swscale: clip before assigning tables in RGB output functions.
  swscale: fix off-by-one in second coefficient in bilinear filters.

Conflicts:
	libavformat/mov.c
	libswscale/output.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>

doc/developer.texi

@@ -198,10 +198,16 @@ autocmd InsertEnter * match ForbiddenWhitespace /\t\|\s\+\%#\@@<!$/
 
 For Emacs, add these roughly equivalent lines to your @file{.emacs.d/init.el}:
 @example
-(setq c-default-style "k&r")
-(setq-default c-basic-offset 4)
-(setq-default indent-tabs-mode nil)
-(setq-default show-trailing-whitespace t)
+(c-add-style "ffmpeg"
+             '("k&r"
+               (c-basic-offset . 4)
+               (indent-tabs-mode nil)
+               (show-trailing-whitespace t)
+               (c-offsets-alist
+                (statement-cont . (c-lineup-assignments +)))
+               )
+             )
+(setq c-default-style "ffmpeg")
 @end example
 
 @section Development Policy