+static void set_mv_search_params(VP9_COMP *cpi) {
+ const VP9_COMMON *const cm = &cpi->common;
+ const unsigned int max_mv_def = MIN(cm->width, cm->height);
+
+ // Default based on max resolution.
+ cpi->mv_step_param = vp9_init_search_range(max_mv_def);
+
+ if (cpi->sf.mv.auto_mv_step_size) {
+ if (frame_is_intra_only(cm)) {
+ // Initialize max_mv_magnitude for use in the first INTER frame
+ // after a key/intra-only frame.
+ cpi->max_mv_magnitude = max_mv_def;
+ } else {
+ if (cm->show_frame)
+ // Allow mv_steps to correspond to twice the max mv magnitude found
+ // in the previous frame, capped by the default max_mv_magnitude based
+ // on resolution.
+ cpi->mv_step_param =
+ vp9_init_search_range(MIN(max_mv_def, 2 * cpi->max_mv_magnitude));
+ cpi->max_mv_magnitude = 0;
+ }
+ }
+}
+
+
+int setup_interp_filter_search_mask(VP9_COMP *cpi) {
+ INTERP_FILTER ifilter;
+ int ref_total[MAX_REF_FRAMES] = {0};
+ MV_REFERENCE_FRAME ref;
+ int mask = 0;
+ if (cpi->common.last_frame_type == KEY_FRAME ||
+ cpi->refresh_alt_ref_frame)
+ return mask;
+ for (ref = LAST_FRAME; ref <= ALTREF_FRAME; ++ref)
+ for (ifilter = EIGHTTAP; ifilter <= EIGHTTAP_SHARP; ++ifilter)
+ ref_total[ref] += cpi->interp_filter_selected[ref][ifilter];
+
+ for (ifilter = EIGHTTAP; ifilter <= EIGHTTAP_SHARP; ++ifilter) {
+ if ((ref_total[LAST_FRAME] &&
+ cpi->interp_filter_selected[LAST_FRAME][ifilter] == 0) &&
+ (ref_total[GOLDEN_FRAME] == 0 ||
+ cpi->interp_filter_selected[GOLDEN_FRAME][ifilter] * 50
+ < ref_total[GOLDEN_FRAME]) &&
+ (ref_total[ALTREF_FRAME] == 0 ||
+ cpi->interp_filter_selected[ALTREF_FRAME][ifilter] * 50
+ < ref_total[ALTREF_FRAME]))
+ mask |= 1 << ifilter;
+ }
+ return mask;
+}
+