summaryrefslogtreecommitdiff
path: root/vp8/decoder/dequantize.c
AgeCommit message (Collapse)Author
2010-10-27Eliminate more warnings.Timothy B. Terriberry
This eliminates a large set of warnings exposed by the Mozilla build system (Use of C++ comments in ISO C90 source, commas at the end of enum lists, a couple incomplete initializers, and signed/unsigned comparisons). It also eliminates many (but not all) of the warnings expose by newer GCC versions and _FORTIFY_SOURCE (e.g., calling fread and fwrite without checking the return values). There are a few spurious warnings left on my system: ../vp8/encoder/encodemb.c:274:9: warning: 'sz' may be used uninitialized in this function gcc seems to be unable to figure out that the value shortcut doesn't change between the two if blocks that test it here. ../vp8/encoder/onyx_if.c:5314:5: warning: comparison of unsigned expression >= 0 is always true ../vp8/encoder/onyx_if.c:5319:5: warning: comparison of unsigned expression >= 0 is always true This is true, so far as it goes, but it's comparing against an enum, and the C standard does not mandate that enums be unsigned, so the checks can't be removed. Change-Id: Iaf689ae3e3d0ddc5ade00faa474debe73b8d3395
2010-10-21Convert [4][4] matrices to [16] arrays.Timothy B. Terriberry
Most of the code that actually uses these matrices indexes them as if they were a single contiguous array, and coverity produces reports about the resulting accesses that overflow the static bounds of the first row. This is perfectly legal in C, but converting them to actual [16] arrays should eliminate the report, and removes a good deal of extraneous indexing and address operators from the code. Change-Id: Ibda479e2232b3e51f9edf3b355b8640520fdbf23
2010-09-09Use WebM in copyright notice for consistencyJohn Koleszar
Changes 'The VP8 project' to 'The WebM project', for consistency with other webmproject.org repositories. Fixes issue #97. Change-Id: I37c13ed5fbdb9d334ceef71c6350e9febed9bbba
2010-07-26update arm idct functionsJohann
Jeff Muizelaar posted some changes to the idct/reconstruction c code. This is the equivalent update for the arm assembly. This shows a good boost on v6, and a minor boost on neon. Here are some numbers for highway in qcif, 2641 frames: HEAD neon: ~161 fps new neon: ~162 fps HEAD v6: ~102 fps new v6: ~106 fps The following functions have been updated for armv6 and neon: vp8_dc_only_idct_add vp8_dequant_idct_add vp8_dequant_dc_idct_add Conflicts: vp8/decoder/arm/armv6/dequantdcidct_v6.asm vp8/decoder/arm/armv6/dequantidct_v6.asm Resolved by removing these files. When I rewrote the functions, I also moved the files to dequant_dc_idct_v6.asm/dequant_idct_v6.asm Change-Id: Ie3300df824d52474eca1a5134cf22d8b7809a5d4
2010-07-23Combine idct and reconstruction stepsJeff Muizelaar
This moves the prediction step before the idct and combines the idct and reconstruction steps into a single step. Combining them seems to give an overall decoder performance improvement of about 1%. Change-Id: I90d8b167ec70d79c7ba2ee484106a78b3d16e318
2010-06-18cosmetics: trim trailing whitespaceJohn Koleszar
When the license headers were updated, they accidentally contained trailing whitespace, so unfortunately we have to touch all the files again. Change-Id: I236c05fade06589e417179c0444cb39b09e4200d
2010-06-04LICENSE: update with latest textJohn Koleszar
Change-Id: Ieebea089095d9073b3a94932791099f614ce120c
2010-05-18Initial WebM releaseJohn Koleszar