possible arbitrary code execution cannot be ruled out in some cases
precautionary checks
Originally committed as revision 3813 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Fixes a small memory leak in read_rle_sgi()
* Remove temp buffer in read_rle_sgi(). Write rle data directly to image
buffer.
* Adds sanity check to read_rle_sgi() to insure decoded rle data row
equals image width.
Originally committed as revision 2993 to svn://svn.ffmpeg.org/ffmpeg/trunk
Michael Niedermayer
Mike Melanson