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| author | Yaowu Xu <yaowu@google.com> | 2013-02-11 21:14:46 -0800 |
|---|---|---|
| committer | Yaowu Xu <yaowu@google.com> | 2013-02-13 09:24:39 -0800 |
| commit | 17db5d00be2f005f11428edf0fd23265d04d100f (patch) | |
| tree | f6f0890b6c3351dcfcb030fdd86491dfc16a9489 /vp9/common/vp9_idctllm.c | |
| parent | 16f25f9dc83a37f2a16c7652445b6a6ecf8034af (diff) | |
| download | libvpx-17db5d00be2f005f11428edf0fd23265d04d100f.tar libvpx-17db5d00be2f005f11428edf0fd23265d04d100f.tar.gz libvpx-17db5d00be2f005f11428edf0fd23265d04d100f.tar.bz2 libvpx-17db5d00be2f005f11428edf0fd23265d04d100f.zip | |
enable bitstream lossless support
1. Added a bit in frame header to to indicate if a frame is encoded
in lossless mode, so decoder does not make the decision based on Q0
2. Minor changes to make sure that lossy coding works same as when
the lossless experiment is not enabled.
3. Renamed function pointers for transforms to be consistent, using
prefix fwd_txm and inv_txm for forward and inverse respectively
To encode in lossless mode, using "--lossless=1 --min-q=0 --max-q=0"
with vpxenc.
Change-Id: Ifae53b26d2ffbe378d707e29d96817b8a5e6c068
Diffstat (limited to 'vp9/common/vp9_idctllm.c')
| -rw-r--r-- | vp9/common/vp9_idctllm.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/vp9/common/vp9_idctllm.c b/vp9/common/vp9_idctllm.c index b27b34cf2..5afce6ee4 100644 --- a/vp9/common/vp9_idctllm.c +++ b/vp9/common/vp9_idctllm.c @@ -476,12 +476,13 @@ void vp9_short_inv_walsh4x4_1_x8_c(int16_t *in, int16_t *out, int pitch) { } } -void vp9_dc_only_inv_walsh_add_c(short input_dc, uint8_t *pred_ptr, +void vp9_dc_only_inv_walsh_add_c(int input_dc, uint8_t *pred_ptr, uint8_t *dst_ptr, int pitch, int stride) { int r, c; - short tmp[16]; - vp9_short_inv_walsh4x4_1_x8_c(&input_dc, tmp, 4 << 1); + int16_t dc = input_dc; + int16_t tmp[16]; + vp9_short_inv_walsh4x4_1_x8_c(&dc, tmp, 4 << 1); for (r = 0; r < 4; r++) { for (c = 0; c < 4; c++) { |