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| author | Paul Wilkins <paulwilkins@google.com> | 2019-04-02 16:31:33 +0100 |
|---|---|---|
| committer | Paul Wilkins <paulwilkins@google.com> | 2019-04-02 16:32:41 +0100 |
| commit | 4d1637ff67a8912504e27d31ff445b0be4531451 (patch) | |
| tree | f407edbc44de16649061098bbf0617062579f37e /vp9/encoder | |
| parent | 1c0857d648c1e2eb13de3d2e717b1848bbc602d9 (diff) | |
| download | libvpx-4d1637ff67a8912504e27d31ff445b0be4531451.tar libvpx-4d1637ff67a8912504e27d31ff445b0be4531451.tar.gz libvpx-4d1637ff67a8912504e27d31ff445b0be4531451.tar.bz2 libvpx-4d1637ff67a8912504e27d31ff445b0be4531451.zip | |
Film mode: Raise threshold for intra modes
Substantially increase the threshold for applying variance
adjustment in rd_variance_adjustment() for intra modes
only, especially for DC_PRED.
Change-Id: Idb3f0c5aca5ab58c9b79c3e993247719054d79c9
Diffstat (limited to 'vp9/encoder')
| -rw-r--r-- | vp9/encoder/vp9_rdopt.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/vp9/encoder/vp9_rdopt.c b/vp9/encoder/vp9_rdopt.c index 8ed27a80c..bf631d1bf 100644 --- a/vp9/encoder/vp9_rdopt.c +++ b/vp9/encoder/vp9_rdopt.c @@ -3171,6 +3171,11 @@ static void rd_variance_adjustment(VP9_COMP *cpi, MACROBLOCK *x, double noise_factor = (double)cpi->twopass.gf_group.group_noise_energy / SECTION_NOISE_DEF; low_var_thresh = (unsigned int)(low_var_thresh * noise_factor); + + if (ref_frame == INTRA_FRAME) { + low_var_thresh *= 2; + if (this_mode == DC_PRED) low_var_thresh *= 5; + } } } else { low_var_thresh = LOW_VAR_THRESH / 2; |