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| author | Jingning Han <jingning@google.com> | 2013-07-29 13:55:22 -0700 |
|---|---|---|
| committer | Jingning Han <jingning@google.com> | 2013-07-29 14:45:53 -0700 |
| commit | a7c4de22e106f005a21efd0e73f3e5ff31d8152e (patch) | |
| tree | 22405281d1fb1597a1cd475801a451f80bbd6a9d /vp9/decoder | |
| parent | 23391ea8353f9535ef12d0b797f994f1e181ca2d (diff) | |
| download | libvpx-a7c4de22e106f005a21efd0e73f3e5ff31d8152e.tar libvpx-a7c4de22e106f005a21efd0e73f3e5ff31d8152e.tar.gz libvpx-a7c4de22e106f005a21efd0e73f3e5ff31d8152e.tar.bz2 libvpx-a7c4de22e106f005a21efd0e73f3e5ff31d8152e.zip | |
16x16 inverse 2D-DCT with DC only
This commit provides special handle on 16x16 inverse 2D-DCT, where
only DC coefficient is quantized to be non-zero value.
Change-Id: I7bf71be7fa13384fab453dc8742b5b50e77a277c
Diffstat (limited to 'vp9/decoder')
| -rw-r--r-- | vp9/decoder/vp9_idct_blk.c | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/vp9/decoder/vp9_idct_blk.c b/vp9/decoder/vp9_idct_blk.c index 42b805f8e..395e636b8 100644 --- a/vp9/decoder/vp9_idct_blk.c +++ b/vp9/decoder/vp9_idct_blk.c @@ -123,14 +123,8 @@ void vp9_idct_add_16x16_c(int16_t *input, uint8_t *dest, int stride, int eob) { if (eob) { if (eob == 1) { /* DC only DCT coefficient. */ - int16_t in = input[0]; - int16_t out; - /* Note: the idct1 will need to be modified accordingly whenever - * vp9_short_idct16x16() is modified. */ - vp9_short_idct1_16x16_c(&in, &out); + vp9_short_idct16x16_1_add(input, dest, stride); input[0] = 0; - - vp9_add_constant_residual_16x16(out, dest, stride); } else if (eob <= 10) { vp9_short_idct10_16x16_add(input, dest, stride); vpx_memset(input, 0, 512); |