Author | SHA1 | Message | Date |
---|---|---|---|
|
fe5ed69dc7 |
rv34dsp x86: implement MMX2 inverse transform
141 cycles down to 51. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com> |
13 years ago |
|
9ba9c34024 |
rv34: 1-pass inter MB reconstruction
Implement 1-pass inverse transform and reconstruction for inter blocks. |
13 years ago |
|
d78062386e |
rv34: Intra 16x16 handling
Extract processing of intra 16x16 blocks from intra macroblock processing. Also implement a function performing inverse transform and block reconstruction for DC-only blocks in 1 pass instead of 2. |
13 years ago |
|
3faa303a47 |
rv34: DC-only inverse transform
When decoding coefficients, detect whether the block is DC-only, and take advantage of this knowledge to perform DC-only inverse transform. This is achieved by: - first, changing the 108x4 element modulo_three_table into a 108 element table (kind of base4), and accessing each value using mask and shifts. - then, checking low bits for 0 (as they represent the presence of higher frequency coefficients) Also provide x86 SIMD code for the DC-only inverse transform. Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com> |
13 years ago |