generic-library/vpx
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Tune rate-distortion modeling for non-RD mode decision

Browse Source 
This commit adjusts the rate-distortion modeling for non-RD mode
decision. It puts more weights on energy from AC coefficients when
estimating the cost. The coding performance for rtc testset is
improved by 0.72%.

Change-Id: Ifa6ff11311a513ec2b10586589e82a9a21f6c61c
This commit is contained in:
Jingning Han 2014-03-12 10:03:28 -07:00
parent 4e9b0d6cef
commit 7686c950b5
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
vp9/encoder/vp9_pickmode.c
View File

@ -207,14 +207,14 @@ static void model_rd_for_sb_y(VP9_COMP *cpi, BLOCK_SIZE bsize,
struct macroblockd_plane *const pd = &xd->plane[0];
const BLOCK_SIZE bs = get_plane_block_size(bsize, pd);
(void) cpi->fn_ptr[bs].vf(p->src.buf, p->src.stride,
pd->dst.buf, pd->dst.stride, &sse);
int var = cpi->fn_ptr[bs].vf(p->src.buf, p->src.stride,
pd->dst.buf, pd->dst.stride, &sse);
vp9_model_rd_from_var_lapndz(sse, 1 << num_pels_log2_lookup[bs],
vp9_model_rd_from_var_lapndz(var + sse, 1 << num_pels_log2_lookup[bs],
pd->dequant[1] >> 3, &rate, &dist);
*out_rate_sum = rate;
*out_dist_sum = dist << 4;
*out_dist_sum = dist << 3;
}
// TODO(jingning) placeholder for inter-frame non-RD mode decision.