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5 Commits

Author SHA1 Message Date
James Zern
65ef5afc27 Merge "lossless: 0.13% compression density gain" 2015-06-03 03:02:09 +00:00
Jyrki Alakuijala
2beef2f245 lossless: 0.13% compression density gain 
over a 1000 image corpus

Single photograph benchmark:
Before:
Q=20: 2.560 MP/s
Q=40: 2.593 MP/s
Q=60: 1.795 MP/s
Q=80: 1.603 MP/s
Q=99: 1.122 MP/s

After:
Q=20: 3.334 MP/s
Q=40: 2.464 MP/s
Q=60: 2.009 MP/s
Q=80: 1.871 MP/s
Q=99: 1.163 MP/s

This CL allows for some further improvements that would not be possible
otherwise.

Change-Id: I61ba154beca2266cb96469281cf96e84a4412586
 2015-06-02 17:27:36 -07:00
Pascal Massimino
3033f24c26 lossless: 0.06 % compression density improvement 
Change-Id: Ib662e6aec53b40d6bc736d3ecfd6475bb005c790
 2015-06-02 14:51:51 +02:00
Pascal Massimino
c64659e1b4 remove duplicate variables after the lossless{_enc}.c split 
clang was giving "duplicate symbols" error messages at link time.

Change-Id: I2b77b55222fe033cc1d4636567902e80d814aab6
 2015-03-25 11:10:21 +01:00
James Zern
553051f741 dsp/lossless: split enc/dec functions 
adds lossless_enc*.c; reduces the size of the decode-only so: ~78K
w/gcc-4.8.2 on x86_64.

Change-Id: If5e4610b67d05eba5896bc64bab79e9df92b2092
 2015-03-23 22:57:50 -07:00