| commit | 6594ca8897ea0293d44b825f7c7fe81a7eb540a4 | [log] [tgz] |
|---|---|---|
| author | Jingning Han <jingning@google.com> | Tue Oct 08 09:06:08 2013 -0700 |
| committer | Jingning Han <jingning@google.com> | Tue Oct 08 11:47:29 2013 -0700 |
| tree | ec6564f3a2e437c55476a2ccd6ca0212900e9025 | |
| parent | 2ae93a776b4b5ba864363a7de36f3e4b6aa99eab [diff] |
All zero coeff skip in IDCT 32x32 When all coefficients are zeros, skip the corresponding 1-D inverse transform. This practice has been used in the SSE2 implementation of inverse 32x32 DCT. This commit imports this algorithm into the C code. Change-Id: I0f58bfcb183a569fab85d524d5d9cf8ae8653f86