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| author | Jim Bankoski <jimbankoski@google.com> | 2014-02-12 14:16:55 -0800 |
|---|---|---|
| committer | Jim Bankoski <jimbankoski@google.com> | 2014-02-12 14:16:55 -0800 |
| commit | 9e190dfbfe5a5d4662370f6580ff08de3c0a8d01 (patch) | |
| tree | fd9785b08cacc4c249e530f70e05bdda2c9cb684 | |
| parent | fffb3be7658ad3c79f79bc69470454aa69f82b73 (diff) | |
| download | libvpx-9e190dfbfe5a5d4662370f6580ff08de3c0a8d01.tar libvpx-9e190dfbfe5a5d4662370f6580ff08de3c0a8d01.tar.gz libvpx-9e190dfbfe5a5d4662370f6580ff08de3c0a8d01.tar.bz2 libvpx-9e190dfbfe5a5d4662370f6580ff08de3c0a8d01.zip | |
fast approximate model_rd_from_var_lapndz
Change-Id: Ieceaa16312941992d4a57455e336d625dfe4e094
| -rw-r--r-- | vp9/encoder/vp9_rdopt.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/vp9/encoder/vp9_rdopt.c b/vp9/encoder/vp9_rdopt.c index cae7884fd..8f03cdedb 100644 --- a/vp9/encoder/vp9_rdopt.c +++ b/vp9/encoder/vp9_rdopt.c @@ -444,8 +444,21 @@ static void model_rd_for_sb(VP9_COMP *cpi, BLOCK_SIZE bsize, if (i == 0) x->pred_sse[ref] = sse; - if (cpi->sf.use_pick_mode) { - dist_sum += (int)sse; + + // Fast approximate the modelling function. + if (cpi->oxcf.cpu_used < -4) { + int rate; + int64_t dist; + int64_t square_error = sse; + int quantizer = (pd->dequant[1] >> 3); + + if ( quantizer < 120) + rate = (square_error * (280-quantizer) )>> 8; + else + rate = 0; + dist = (square_error * quantizer) >> 8; + rate_sum += rate; + dist_sum += dist; } else { int rate; int64_t dist; |