Johann fea3556e20 Fix variance overflow ... In the variance calculations the difference is summed and later squared. When the sum exceeds sqrt(2^31) the value is treated as a negative when it is shifted which gives incorrect results. To fix this we cast the result of the multiplication as unsigned. The alternative fix is to shift sum down by 4 before multiplying. However that will reduce precision. For 16x16 blocks the maximum sum is 65280 and sqrt(2^31) is 46340 (and change). PPC change is untested. Change-Id: I1bad27ea0720067def6d71a6da5f789508cec265		2012-02-09 12:38:31 -08:00
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fastquantizeb_neon.asm	Change use of eob in the encoder	2011-11-03 16:08:09 +02:00
picklpf_arm.c	Reduce partial frame copy in encoder's pick_filter_level_fast	2011-10-26 15:25:07 +03:00
sad8_neon.asm	Use WebM in copyright notice for consistency	2010-09-09 10:01:21 -04:00
sad16_neon.asm	Use WebM in copyright notice for consistency	2010-09-09 10:01:21 -04:00
shortfdct_neon.asm	NEON FDCT updated to match current C code	2011-09-20 10:20:55 +03:00
subtract_neon.asm	Added predictor stride argument(s) to subtract functions	2011-11-15 12:53:01 -05:00
variance_neon.asm	Fix variance overflow	2012-02-09 12:38:31 -08:00
vp8_memcpy_neon.asm	Reduce partial frame copy in encoder's pick_filter_level_fast	2011-10-26 15:25:07 +03:00
vp8_mse16x16_neon.asm	remove one set of 16x16 variance funcations	2011-06-09 11:23:05 -07:00
vp8_shortwalsh4x4_neon.asm	NEON walsh transform updated to match C	2011-09-19 10:15:33 +03:00
vp8_subpixelvariance8x8_neon.asm	Fix variance overflow	2012-02-09 12:38:31 -08:00
vp8_subpixelvariance16x16_neon.asm	Fix variance overflow	2012-02-09 12:38:31 -08:00
vp8_subpixelvariance16x16s_neon.asm	Fix variance overflow	2012-02-09 12:38:31 -08:00