diff options
| author | Aaron Boxer <boxerab@gmail.com> | 2017-09-01 19:33:40 -0400 |
|---|---|---|
| committer | cah <cah@ableton.com> | 2019-12-03 11:36:51 +0100 |
| commit | 531f1a7146baa2f711e76927bc92bc33b053055d (patch) | |
| tree | 8317880942e99cb3682af682f3feaa28609cde55 /src/lib | |
| parent | e9335061e8186786eefe065720ecbd4ce7cafdd4 (diff) | |
use tolerance to bail out early from rate control : much faster
Diffstat (limited to 'src/lib')
| -rw-r--r-- | src/lib/openjp2/tcd.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/lib/openjp2/tcd.c b/src/lib/openjp2/tcd.c index 13d6692b..b3e789e3 100644 --- a/src/lib/openjp2/tcd.c +++ b/src/lib/openjp2/tcd.c @@ -539,6 +539,8 @@ OPJ_BOOL opj_tcd_rateallocate(opj_tcd_t *tcd, OPJ_UINT32) ceil(tcd_tcp->rates[layno])), len) : len; OPJ_FLOAT64 goodthresh = 0; OPJ_FLOAT64 stable_thresh = 0; + OPJ_FLOAT64 old_thresh = -1; + const OPJ_FLOAT64 tolerance = 0.01; OPJ_UINT32 i; OPJ_FLOAT64 distotarget; /* fixed_quality */ @@ -567,6 +569,9 @@ OPJ_BOOL opj_tcd_rateallocate(opj_tcd_t *tcd, thresh = (lo + hi) / 2; opj_tcd_makelayer(tcd, layno, thresh, 0); + if ((fabs(old_thresh - thresh)) < tolerance) + break; + old_thresh = thresh; if (cp->m_specific_param.m_enc.m_fixed_quality) { /* fixed_quality */ if (OPJ_IS_CINEMA(cp->rsiz)) { |