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| author | Ronald S. Bultje <rbultje@google.com> | 2013-02-13 12:28:19 -0800 |
|---|---|---|
| committer | Ronald S. Bultje <rbultje@google.com> | 2013-02-13 12:28:19 -0800 |
| commit | 42d6be8080c8201f3a1844357c551cefed9d5f99 (patch) | |
| tree | 79757c7eeb76e697f85da549ffde250141ecb8f0 /vp9/common | |
| parent | 491d095214bb05fc28a7490d1bc690a73cb019e2 (diff) | |
| download | libvpx-42d6be8080c8201f3a1844357c551cefed9d5f99.tar libvpx-42d6be8080c8201f3a1844357c551cefed9d5f99.tar.gz libvpx-42d6be8080c8201f3a1844357c551cefed9d5f99.tar.bz2 libvpx-42d6be8080c8201f3a1844357c551cefed9d5f99.zip | |
Remove 2nd-order transform for first-order DC coefficients.
Since addition of the larger-scale transforms (16x16, 32x32), these
don't give a benefit at macroblock-sizes anymore. At superblock-sizes,
2nd-order transform was never used over the larger transforms. Future
work should test whether there is a benefit for that use case.
Change-Id: I90cadfc42befaf201de3eb0c4f7330c56e33330a
Diffstat (limited to 'vp9/common')
| -rw-r--r-- | vp9/common/vp9_blockd.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/vp9/common/vp9_blockd.h b/vp9/common/vp9_blockd.h index b2c15fc76..3351e6928 100644 --- a/vp9/common/vp9_blockd.h +++ b/vp9/common/vp9_blockd.h @@ -618,6 +618,9 @@ static TX_TYPE get_tx_type(const MACROBLOCKD *xd, const BLOCKD *b) { } static int get_2nd_order_usage(const MACROBLOCKD *xd) { +#if 1 + return 0; +#else int has_2nd_order = (xd->mode_info_context->mbmi.mode != SPLITMV && xd->mode_info_context->mbmi.mode != I8X8_PRED && xd->mode_info_context->mbmi.mode != B_PRED && @@ -625,6 +628,7 @@ static int get_2nd_order_usage(const MACROBLOCKD *xd) { if (has_2nd_order) has_2nd_order = (get_tx_type(xd, xd->block) == DCT_DCT); return has_2nd_order; +#endif } extern void vp9_build_block_doffsets(MACROBLOCKD *xd); |