ref: 7f29d22e510b25f96fd38f17ff44ed39bda4739a
parent: f6bf5f55baa8bd30126b297940385105e72d93ad
parent: 49866baae60f863d36ca42f40ff4fddd987461cc
author: Pengchong Jin <pengchong@google.com>
date: Wed Jul 30 09:35:02 EDT 2014
Merge "Early termination after partition NONE is done in RD."
--- a/vp9/encoder/vp9_encodeframe.c
+++ b/vp9/encoder/vp9_encodeframe.c
@@ -1888,6 +1888,15 @@
vpx_memcpy(x->pred_mv, ctx->pred_mv, sizeof(x->pred_mv));
}
+#if CONFIG_FP_MB_STATS
+const int num_16x16_blocks_wide_lookup[BLOCK_SIZES] =
+ {1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 4, 4};+const int num_16x16_blocks_high_lookup[BLOCK_SIZES] =
+ {1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 4, 2, 4};+const int qindex_skip_threshold_lookup[BLOCK_SIZES] =
+ {0, 10, 10, 30, 40, 40, 60, 80, 80, 90, 100, 100, 120};+#endif
+
// TODO(jingning,jimbankoski,rbultje): properly skip partition types that are
// unlikely to be selected depending on previous rate-distortion optimization
// results, for encoding speed-up.
@@ -1993,6 +2002,52 @@
do_split = 0;
do_rect = 0;
}
+
+#if CONFIG_FP_MB_STATS
+ // Check if every 16x16 first pass block statistics has zero
+ // motion and the corresponding first pass residue is small enough.
+ // If that is the case, check the difference variance between the
+ // current frame and the last frame. If the variance is small enough,
+ // stop further splitting in RD optimization
+ if (cpi->use_fp_mb_stats && do_split != 0 &&
+ cm->base_qindex > qindex_skip_threshold_lookup[bsize]) {+ VP9_COMMON *cm = &cpi->common;
+ int mb_row = mi_row >> 1;
+ int mb_col = mi_col >> 1;
+ int mb_row_end =
+ MIN(mb_row + num_16x16_blocks_high_lookup[bsize], cm->mb_rows);
+ int mb_col_end =
+ MIN(mb_col + num_16x16_blocks_wide_lookup[bsize], cm->mb_cols);
+ int r, c;
+
+ int skip = 1;
+ for (r = mb_row; r < mb_row_end; r++) {+ for (c = mb_col; c < mb_col_end; c++) {+ const int mb_index = r * cm->mb_cols + c;
+ if ((cpi->twopass.this_frame_mb_stats[mb_index] &
+ FPMB_NONZERO_MOTION_MASK) ||
+ !(cpi->twopass.this_frame_mb_stats[mb_index] &
+ FPMB_ERROR_LEVEL0_MASK)) {+ skip = 0;
+ break;
+ }
+ }
+ if (skip == 0) {+ break;
+ }
+ }
+ if (skip) {+ unsigned int var;
+ set_offsets(cpi, tile, mi_row, mi_col, bsize);
+ var = get_sby_perpixel_diff_variance(cpi, &cpi->mb.plane[0].src,
+ mi_row, mi_col, bsize);
+ if (var < 8) {+ do_split = 0;
+ do_rect = 0;
+ }
+ }
+ }
+#endif
}
}
restore_context(cpi, mi_row, mi_col, a, l, sa, sl, bsize);
--
⑨