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| author | Yaowu Xu <yaowu@google.com> | 2011-11-04 19:08:51 -0700 |
|---|---|---|
| committer | Paul Wilkins <paulwilkins@google.com> | 2011-11-08 16:15:41 +0000 |
| commit | 6e165e86a7fe5b2609194a82b816a56dd7305ec7 (patch) | |
| tree | 552529d261c9ce6b2bc5c3d10baeacf71c79ad31 /vp8/common/idctllm.c | |
| parent | a9df4183a6587719c9530d45d5dbd81530be9e7b (diff) | |
| download | libvpx-6e165e86a7fe5b2609194a82b816a56dd7305ec7.tar libvpx-6e165e86a7fe5b2609194a82b816a56dd7305ec7.tar.gz libvpx-6e165e86a7fe5b2609194a82b816a56dd7305ec7.tar.bz2 libvpx-6e165e86a7fe5b2609194a82b816a56dd7305ec7.zip | |
Attempt to fix an issue related to 8x8 transform and segfeature
logically this commit should NOT change anything, but seems to help
revert the 3DB loss on bowing in the following commit:
https://on2-git.corp.google.com/g/#change,6193
This is still debugging in progress. Need further investigation to
understand the root cause of the issue.
Change-Id: I0b49d1ef3a311dfff58c6acd3eaebdb3bda6257c
Diffstat (limited to 'vp8/common/idctllm.c')
| -rw-r--r-- | vp8/common/idctllm.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/vp8/common/idctllm.c b/vp8/common/idctllm.c index a0042ae6d..ba4beb4ca 100644 --- a/vp8/common/idctllm.c +++ b/vp8/common/idctllm.c @@ -399,14 +399,14 @@ static void idctcol (int *blk) x4 = (181 * (x4 - x5) + 128) >> 8; /* fourth stage */ - blk[8 * 0] = (x7 + x1 ) >> 15; - blk[8 * 1] = (x3 + x2 ) >> 15; - blk[8 * 2] = (x0 + x4 ) >> 15; - blk[8 * 3] = (x8 + x6 ) >> 15; - blk[8 * 4] = (x8 - x6 ) >> 15; - blk[8 * 5] = (x0 - x4 ) >> 15; - blk[8 * 6] = (x3 - x2 ) >> 15; - blk[8 * 7] = (x7 - x1 ) >> 15; + blk[8 * 0] = (x7 + x1 ) >> 14; + blk[8 * 1] = (x3 + x2 ) >> 14; + blk[8 * 2] = (x0 + x4 ) >> 14; + blk[8 * 3] = (x8 + x6 ) >> 14; + blk[8 * 4] = (x8 - x6 ) >> 14; + blk[8 * 5] = (x0 - x4 ) >> 14; + blk[8 * 6] = (x3 - x2 ) >> 14; + blk[8 * 7] = (x7 - x1 ) >> 14; } #define TX_DIM 8 @@ -434,7 +434,7 @@ void vp8_short_idct8x8_c(short *coefs, short *block, int pitch) { for (j = 0; j < TX_DIM; j++) { - block[i*shortpitch+j] = X[i * TX_DIM + j]; + block[i*shortpitch+j] = X[i * TX_DIM + j]>>1; } } } |