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Merge "Add speed feature for recode tolerance."

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This commit is contained in:
Paul Wilkins
2014-04-02 12:22:33 -07:00
committed by Gerrit Code Review
parent 8b8606a737 769cd78ff2
commit 32eb8c7955
4 changed files with 22 additions and 29 deletions
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26
vp9/encoder/vp9_ratectrl.c
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@@ -1002,28 +1002,14 @@ void vp9_rc_compute_frame_size_bounds(const VP9_COMP *cpi,
*frame_under_shoot_limit = 0;
*frame_over_shoot_limit = INT_MAX;
} else {
if (cpi->common.frame_type == KEY_FRAME) {
*frame_over_shoot_limit = this_frame_target * 9 / 8;
*frame_under_shoot_limit = this_frame_target * 7 / 8;
} else {
if (cpi->refresh_alt_ref_frame || cpi->refresh_golden_frame) {
*frame_over_shoot_limit = this_frame_target * 9 / 8;
*frame_under_shoot_limit = this_frame_target * 7 / 8;
} else {
// Strong overshoot limit for constrained quality
if (cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY) {
*frame_over_shoot_limit = this_frame_target * 11 / 8;
*frame_under_shoot_limit = this_frame_target * 2 / 8;
} else {
*frame_over_shoot_limit = this_frame_target * 11 / 8;
*frame_under_shoot_limit = this_frame_target * 5 / 8;
}
}
}
int recode_tolerance =
(cpi->sf.recode_tolerance * this_frame_target) / 100;
*frame_over_shoot_limit = this_frame_target + recode_tolerance;
*frame_under_shoot_limit = this_frame_target - recode_tolerance;
// For very small rate targets where the fractional adjustment
// (eg * 7/8) may be tiny make sure there is at least a minimum
// range.
// may be tiny make sure there is at least a minimum range.
*frame_over_shoot_limit += 200;
*frame_under_shoot_limit -= 200;
if (*frame_under_shoot_limit < 0)