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4 Commits

Author SHA1 Message Date
Jingning Han
3cf46fa591 Fix 32x32 forward transform SSE2 version 
This commit fixed the potential overflow issue in the SSE2
implementation of 32x32 forward DCT. It resolved the corrupted
coded frames in the border of scenes.

Change-Id: If87eef2d46209269f74ef27e7295b6707fbf56f9
 2013-08-31 18:47:08 -07:00
Jingning Han
78136edcdc SSE2 high precision 32x32 forward DCT 
Enable SSE2 implementation of high precision 32x32 forward DCT. The
intermediate stacks are of 32-bits. The run-time goes down from
32126 cycles to 13442 cycles.

Change-Id: Ib5ccafe3176c65bd6f2dbdef790bd47bbc880e56
 2013-08-12 16:52:53 -07:00
Jingning Han
28566a6cd5 Place holder for high-precision 32x32 fdct 
Resolve compile warnings on re-define FDCT32x32_2D template.

Change-Id: Idb3a54ef8d2710ce7245b726379a0e5c875f5cad
 2013-08-06 11:44:08 -07:00
Christian Duvivier
3d98205fce Move fdct32x32 SSE2 implementation in separate file. 
This is in preparation for the SSE2 version of the high-precision
32x32 forward DCT which will share a lot of code with the existing
low precision version used for rate-distortion search.

Change-Id: I7084b6bdfb480b1fabb8493fb14e3f7fcc7888c0
 2013-08-06 10:17:11 -07:00